.

src.bak/main/java/com/example/Orchestrator.java

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example;
+
+import com.google.cloud.spring.data.firestore.repository.config.EnableReactiveFirestoreRepositories;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+@EnableReactiveFirestoreRepositories(basePackages = "com.example.repository")
+public class Orchestrator {
+  public static void main(String[] args) {
+    SpringApplication.run(Orchestrator.class, args);
+  }
+}

src.bak/main/java/com/example/config/DlpConfig.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.config;
+
+import com.google.cloud.dlp.v2.DlpServiceClient;
+import java.io.IOException;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class DlpConfig {
+
+	@Bean(destroyMethod = "close")
+	public DlpServiceClient dlpServiceClient() throws IOException {
+		return DlpServiceClient.create();
+	}
+}

src.bak/main/java/com/example/config/GeminiConfig.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.config;
+
+import com.google.genai.Client;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import java.io.IOException;
+
+/**
+ * Spring configuration class for initializing the Google Gen AI Client.
+ * It uses properties from the application's configuration to create a
+ * singleton `Client` bean for interacting with the Gemini model, ensuring
+ * proper resource management by specifying a destroy method.
+ */
+@Configuration
+public class GeminiConfig {
+
+    private static final Logger logger = LoggerFactory.getLogger(GeminiConfig.class);
+
+    @Value("${google.cloud.project}")
+    private String projectId;
+
+    @Value("${google.cloud.location}")
+    private String location;
+
+    @Bean(destroyMethod = "close")
+    public Client geminiClient() throws IOException {
+        logger.info("Initializing Google Gen AI Client. Project: {}, Location: {}", projectId, location);
+        return Client.builder()
+                .project(projectId)
+                .location(location)
+                .vertexAI(true) 
+                .build();
+    }
+
+}

src.bak/main/java/com/example/config/OpenApiConfig.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.config;
+
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.info.Info;
+import io.swagger.v3.oas.models.info.License;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Spring configuration class for customizing OpenAPI (Swagger) documentation.
+ * It defines a single bean to configure the API's title, version, description,
+ * and license, providing a structured and user-friendly documentation page.
+ */
+@Configuration
+public class OpenApiConfig {
+
+    @Bean
+    public OpenAPI customOpenAPI() {
+        return new OpenAPI()
+                .info(new Info()
+                        .title("Google Middleware API")
+                        .version("1.0")
+                        .description("API documentation. " +
+                                    "It provides functionalities for user management, file storage, and more.")
+                        .termsOfService("http://swagger.io/terms/")
+                        .license(new License().name("Apache 2.0").url("http://springdoc.org")));
+    }
+}

src.bak/main/java/com/example/config/RedisConfig.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.config;
+
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import com.example.dto.dialogflow.conversation.ConversationSessionDTO;
+import com.example.dto.dialogflow.notification.NotificationSessionDTO;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.connection.ReactiveRedisConnectionFactory;
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.RedisSerializationContext;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+@Configuration
+public class RedisConfig {
+
+    @Bean
+    public ReactiveRedisTemplate<String, ConversationSessionDTO> reactiveRedisTemplate(ReactiveRedisConnectionFactory factory, ObjectMapper objectMapper) {
+        Jackson2JsonRedisSerializer<ConversationSessionDTO> serializer = new Jackson2JsonRedisSerializer<>(objectMapper, ConversationSessionDTO.class);
+        RedisSerializationContext.RedisSerializationContextBuilder<String, ConversationSessionDTO> builder = RedisSerializationContext.newSerializationContext(new StringRedisSerializer());
+        RedisSerializationContext<String, ConversationSessionDTO> context = builder.value(serializer).build();
+        return new ReactiveRedisTemplate<>(factory, context);
+    }
+
+    @Bean
+    public ReactiveRedisTemplate<String, NotificationSessionDTO> reactiveNotificationRedisTemplate(ReactiveRedisConnectionFactory factory, ObjectMapper objectMapper) {
+        Jackson2JsonRedisSerializer<NotificationSessionDTO> serializer = new Jackson2JsonRedisSerializer<>(objectMapper, NotificationSessionDTO.class);
+        RedisSerializationContext.RedisSerializationContextBuilder<String, NotificationSessionDTO> builder = RedisSerializationContext.newSerializationContext(new StringRedisSerializer());
+        RedisSerializationContext<String, NotificationSessionDTO> context = builder.value(serializer).build();
+        return new ReactiveRedisTemplate<>(factory, context);
+    }
+
+    @Bean
+    public ReactiveRedisTemplate<String, ConversationMessageDTO> reactiveMessageRedisTemplate(ReactiveRedisConnectionFactory factory, ObjectMapper objectMapper) {
+        Jackson2JsonRedisSerializer<ConversationMessageDTO> serializer = new Jackson2JsonRedisSerializer<>(objectMapper, ConversationMessageDTO.class);
+        RedisSerializationContext.RedisSerializationContextBuilder<String, ConversationMessageDTO> builder = RedisSerializationContext.newSerializationContext(new StringRedisSerializer());
+        RedisSerializationContext<String, ConversationMessageDTO> context = builder.value(serializer).build();
+        return new ReactiveRedisTemplate<>(factory, context);
+    }
+
+    @Bean
+    public ReactiveRedisTemplate<String, String> reactiveStringRedisTemplate(ReactiveRedisConnectionFactory factory) {
+        return new ReactiveRedisTemplate<>(factory, RedisSerializationContext.string());
+    }
+}

src.bak/main/java/com/example/controller/ConversationController.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.controller;
+
+import com.example.dto.dialogflow.base.DetectIntentResponseDTO;
+import com.example.dto.dialogflow.conversation.ExternalConvRequestDTO;
+import com.example.mapper.conversation.ExternalConvRequestMapper;
+import com.example.service.conversation.ConversationManagerService;
+
+import jakarta.validation.Valid;
+
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Mono;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+@RestController
+@RequestMapping("/api/v1/dialogflow")
+public class ConversationController {
+
+    private static final Logger logger = LoggerFactory.getLogger(ConversationController.class);
+    private final ConversationManagerService conversationManagerService;
+
+    public ConversationController(ConversationManagerService conversationManagerService,
+    ExternalConvRequestMapper externalRequestToDialogflowMapper) {
+        this.conversationManagerService = conversationManagerService;
+    }
+
+    @PostMapping("/detect-intent")
+    public Mono<DetectIntentResponseDTO> detectIntent(@Valid @RequestBody ExternalConvRequestDTO request) {      
+        return conversationManagerService.manageConversation(request)
+                .doOnSuccess(response -> logger.info("Successfully processed direct Dialogflow request"))
+                .doOnError(error -> logger.error("Error processing direct Dialogflow request: {}", error.getMessage(), error));
+    }
+}

src.bak/main/java/com/example/controller/DataPurgeController.java

@@ -0,0 +1,29 @@
+package com.example.controller;
+
+import com.example.service.base.DataPurgeService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Mono;
+
+@RestController
+@RequestMapping("/api/v1/data-purge")
+public class DataPurgeController {
+
+    private static final Logger logger = LoggerFactory.getLogger(DataPurgeController.class);
+    private final DataPurgeService dataPurgeService;
+
+    public DataPurgeController(DataPurgeService dataPurgeService) {
+        this.dataPurgeService = dataPurgeService;
+    }
+
+    @DeleteMapping("/all")
+    public Mono<Void> purgeAllData() {
+        logger.warn("Received request to purge all data. This is a destructive operation.");
+        return dataPurgeService.purgeAllData()
+                .doOnSuccess(voidResult -> logger.info("Successfully purged all data."))
+                .doOnError(error -> logger.error("Error purging all data.", error));
+    }
+}

src.bak/main/java/com/example/controller/LlmResponseTunerController.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.controller;
+
+import com.example.dto.llm.webhook.WebhookRequestDTO;
+import com.example.dto.llm.webhook.SessionInfoDTO;
+import com.example.dto.llm.webhook.WebhookResponseDTO;
+import com.example.service.llm.LlmResponseTunerService;
+import java.util.HashMap;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Mono;
+
+@RestController
+@RequestMapping("/api/v1/llm")
+public class LlmResponseTunerController {
+
+    private static final Logger logger = LoggerFactory.getLogger(LlmResponseTunerController.class);
+
+    private final LlmResponseTunerService llmResponseTunerService;
+
+    public LlmResponseTunerController(LlmResponseTunerService llmResponseTunerService) {
+        this.llmResponseTunerService = llmResponseTunerService;
+    }
+
+    @PostMapping("/tune-response")
+    public Mono<WebhookResponseDTO> tuneResponse(@RequestBody WebhookRequestDTO request) {
+        String uuid = (String) request.getSessionInfo().getParameters().get("uuid");
+        return llmResponseTunerService
+                .getValue(uuid)
+                .map(
+                        value -> {
+                            Map<String, Object> parameters = new HashMap<>();
+                            parameters.put("webhook_success", true);
+                            parameters.put("response", value);
+                            SessionInfoDTO sessionInfo = new SessionInfoDTO(parameters);
+                            return new WebhookResponseDTO(sessionInfo);
+                        })
+                .defaultIfEmpty(createErrorResponse("No response found for the given UUID.", false))
+                .onErrorResume(
+                        e -> {
+                            logger.error("Error tuning response: {}", e.getMessage());
+                            return Mono.just(
+                                    createErrorResponse("An internal error occurred.", true));
+                        });
+    }
+
+    private WebhookResponseDTO createErrorResponse(String errorMessage, boolean isError) {
+        Map<String, Object> parameters = new HashMap<>();
+        parameters.put("webhook_success", false);
+        parameters.put("error_message", errorMessage);
+        SessionInfoDTO sessionInfo = new SessionInfoDTO(parameters);
+        return new WebhookResponseDTO(sessionInfo);
+    }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<Map<String, String>> handleException(Exception e) {
+        logger.error("An unexpected error occurred: {}", e.getMessage());
+        Map<String, String> response = new HashMap<>();
+        response.put("error", "Internal Server Error");
+        response.put("message", "An unexpected error occurred. Please try again later.");
+        return new ResponseEntity<>(response, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+
+    @ExceptionHandler(IllegalArgumentException.class)
+    public ResponseEntity<Map<String, String>> handleIllegalArgumentException(
+            IllegalArgumentException e) {
+        logger.error("Bad request: {}", e.getMessage());
+        Map<String, String> response = new HashMap<>();
+        response.put("error", "Bad Request");
+        response.put("message", e.getMessage());
+        return new ResponseEntity<>(response, HttpStatus.BAD_REQUEST);
+    }
+}

src.bak/main/java/com/example/controller/NotificationController.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.controller;
+
+import com.example.dto.dialogflow.notification.ExternalNotRequestDTO;
+import com.example.service.notification.NotificationManagerService;
+
+import jakarta.validation.Valid;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Mono;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@RestController
+@RequestMapping("/api/v1/dialogflow")
+public class NotificationController {
+
+    private static final Logger logger = LoggerFactory.getLogger(ConversationController.class);
+    private final NotificationManagerService notificationManagerService;
+
+    public NotificationController(NotificationManagerService notificationManagerService) {
+        this.notificationManagerService = notificationManagerService;
+    }
+
+    @PostMapping("/notification")
+    public Mono<Void> processNotification(@Valid @RequestBody ExternalNotRequestDTO request) {
+        return notificationManagerService.processNotification(request)
+            .doOnSuccess(response -> logger.info("Successfully processed direct Dialogflow request"))
+            .doOnError(error -> logger.error("Error processing direct Dialogflow request: {}", error.getMessage(), error))
+            .then();
+    }     
+}

src.bak/main/java/com/example/controller/QuickRepliesController.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.controller;
+
+import com.example.dto.dialogflow.base.DetectIntentResponseDTO;
+import com.example.dto.quickreplies.QuickReplyScreenRequestDTO;
+import com.example.service.quickreplies.QuickRepliesManagerService;
+import jakarta.validation.Valid;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import reactor.core.publisher.Mono;
+
+@RestController
+@RequestMapping("/api/v1/quick-replies")
+public class QuickRepliesController {
+
+    private static final Logger logger = LoggerFactory.getLogger(QuickRepliesController.class);
+    private final QuickRepliesManagerService quickRepliesManagerService;
+
+    public QuickRepliesController(QuickRepliesManagerService quickRepliesManagerService) {
+        this.quickRepliesManagerService = quickRepliesManagerService;
+    }
+
+    @PostMapping("/screen")
+    public Mono<DetectIntentResponseDTO> startSessionAndGetReplies(@Valid @RequestBody QuickReplyScreenRequestDTO request) {
+        return quickRepliesManagerService.startQuickReplySession(request)
+                .doOnSuccess(response -> logger.info("Successfully processed quick reply request"))
+                .doOnError(error -> logger.error("Error processing quick reply request: {}", error.getMessage(), error));
+    }
+}

src.bak/main/java/com/example/dto/dialogflow/base/DetectIntentRequestDTO.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.base;
+
+import com.example.dto.dialogflow.conversation.QueryInputDTO;
+import com.example.dto.dialogflow.conversation.QueryParamsDTO;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public record DetectIntentRequestDTO(
+        @JsonProperty("queryInput") QueryInputDTO queryInput,
+        @JsonProperty("queryParams") QueryParamsDTO queryParams
+) {
+
+public DetectIntentRequestDTO withParameter(String key, Object value) {
+        // Create a new QueryParamsDTO with the updated session parameter
+        QueryParamsDTO updatedQueryParams = this.queryParams().withSessionParameter(key, value);
+
+        // Return a new DetectIntentRequestDTO instance with the updated QueryParamsDTO
+        return new DetectIntentRequestDTO(
+                this.queryInput(),
+                updatedQueryParams
+        );      
+}
+
+public DetectIntentRequestDTO withParameters(java.util.Map<String, Object> parameters) {
+        // Create a new QueryParamsDTO with the updated session parameters
+        QueryParamsDTO updatedQueryParams = this.queryParams().withSessionParameters(parameters);
+
+        // Return a new DetectIntentRequestDTO instance with the updated QueryParamsDTO
+        return new DetectIntentRequestDTO(
+                this.queryInput(),
+                updatedQueryParams
+        );
+}
+}

src.bak/main/java/com/example/dto/dialogflow/base/DetectIntentResponseDTO.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.base;
+
+import com.example.dto.dialogflow.conversation.QueryResultDTO;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import com.example.dto.quickreplies.QuickReplyDTO;
+import com.fasterxml.jackson.annotation.JsonInclude;
+
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public record DetectIntentResponseDTO(
+        @JsonProperty("responseId") String responseId,
+        @JsonProperty("queryResult") QueryResultDTO queryResult,
+        @JsonProperty("quick_replies") QuickReplyDTO quickReplies
+) {
+    public DetectIntentResponseDTO(String responseId, QueryResultDTO queryResult) {
+        this(responseId, queryResult, null);
+    }
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/ConversationContext.java

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+public record ConversationContext(
+        String userId,
+        String sessionId,
+        String userMessageText,
+        String primaryPhoneNumber
+) {}

src.bak/main/java/com/example/dto/dialogflow/conversation/ConversationEntryDTO.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import java.time.Instant;
+import java.util.Map;
+
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public record ConversationEntryDTO(
+        ConversationEntryEntity entity,
+        ConversationEntryType type,
+        Instant timestamp,
+        String text,
+        Map<String, Object> parameters,
+        String canal
+) {
+    public static ConversationEntryDTO forUser(String text) {
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.USUARIO,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            text,
+            null,
+            null);
+    }
+
+    public static ConversationEntryDTO forUser(String text, Map<String, Object> parameters) {
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.USUARIO,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            text,
+            parameters,
+            null);
+    }
+
+    public static ConversationEntryDTO forAgent(QueryResultDTO agentQueryResult) {
+        String fulfillmentText = (agentQueryResult != null && agentQueryResult.responseText() != null) ? agentQueryResult.responseText() : "";
+        Map<String, Object> parameters = (agentQueryResult != null) ? agentQueryResult.parameters() : null;
+
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.AGENTE,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            fulfillmentText,
+            parameters,
+            null
+        );
+    }
+
+    public static ConversationEntryDTO forAgentWithMessage(String text) {
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.AGENTE,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            text,
+            null,
+            null
+        );
+    }
+    public static ConversationEntryDTO forSystem(String text) {
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.SISTEMA,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            text,
+            null,
+            null
+        );
+    }
+
+    
+
+    public static ConversationEntryDTO forSystem(String text, Map<String, Object> parameters) {
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.SISTEMA,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            text,
+            parameters,
+            null
+        );
+    }
+
+    public static ConversationEntryDTO forLlmConversation(String text) {
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.LLM,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            text,
+            null,
+            null
+        );
+    }
+
+    public static ConversationEntryDTO forLlmConversation(String text, Map<String, Object> parameters) {
+        return new ConversationEntryDTO(
+            ConversationEntryEntity.LLM,
+            ConversationEntryType.CONVERSACION,
+            Instant.now(),
+            text,
+            parameters,
+            null
+        );
+    }
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/ConversationEntryEntity.java

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+public enum ConversationEntryEntity {
+    USUARIO,
+    AGENTE,
+    SISTEMA,
+    LLM
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/ConversationEntryType.java

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+public enum ConversationEntryType {
+    INICIO,
+    CONVERSACION,
+    LLM
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/ConversationMessageDTO.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import java.time.Instant;
+import java.util.Map;
+
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public record ConversationMessageDTO(
+    MessageType type,
+    Instant timestamp,
+    String text,
+    Map<String, Object> parameters,
+    String canal
+) {
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/ConversationSessionDTO.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import java.time.Instant;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@JsonInclude(Include.NON_NULL)
+public record ConversationSessionDTO(
+    String sessionId,
+    String userId,
+    String telefono,
+    Instant createdAt,
+    Instant lastModified,
+    String lastMessage,
+    String pantallaContexto
+) {
+    public ConversationSessionDTO(String sessionId, String userId, String telefono, Instant createdAt, Instant lastModified, String lastMessage, String pantallaContexto) {
+        this.sessionId = sessionId;
+        this.userId = userId;
+        this.telefono = telefono;
+        this.createdAt = createdAt;
+        this.lastModified = lastModified;
+        this.lastMessage = lastMessage;
+        this.pantallaContexto = pantallaContexto;
+    }
+
+    public static ConversationSessionDTO create(String sessionId, String userId, String telefono) {
+        Instant now = Instant.now();
+        return new ConversationSessionDTO(sessionId, userId, telefono, now, now, null, null);
+    }
+
+    public ConversationSessionDTO withLastMessage(String lastMessage) {
+        return new ConversationSessionDTO(this.sessionId, this.userId, this.telefono, this.createdAt, Instant.now(), lastMessage, this.pantallaContexto);
+    }
+
+    public ConversationSessionDTO withTelefono(String newTelefono) {
+        if (newTelefono != null && !newTelefono.equals(this.telefono)) {
+            return new ConversationSessionDTO(this.sessionId, this.userId, newTelefono, this.createdAt, this.lastModified, this.lastMessage, this.pantallaContexto);
+        }
+        return this;
+    }
+
+    public ConversationSessionDTO withPantallaContexto(String pantallaContexto) {
+        return new ConversationSessionDTO(this.sessionId, this.userId, this.telefono, this.createdAt, this.lastModified, this.lastMessage, pantallaContexto);
+    }
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/ExternalConvRequestDTO.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public record ExternalConvRequestDTO(
+    @JsonProperty("mensaje") String message,
+    @JsonProperty("usuario") UsuarioDTO user,
+    @JsonProperty("canal") String channel,
+    @JsonProperty("tipo") ConversationEntryType tipo,
+    @JsonProperty("pantallaContexto") String pantallaContexto //optional field for quick-replies
+) {
+    public ExternalConvRequestDTO {}
+    }

src.bak/main/java/com/example/dto/dialogflow/conversation/MessageType.java

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+public enum MessageType {
+    USER,
+    AGENT,
+    SYSTEM,
+    LLM
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/QueryInputDTO.java

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+
+
+import com.example.dto.dialogflow.notification.EventInputDTO;
+
+public record QueryInputDTO(
+    TextInputDTO text,  // Can be null if using event
+    EventInputDTO event,
+    String languageCode // REQUIRED for both text and event inputs
+) {}

src.bak/main/java/com/example/dto/dialogflow/conversation/QueryParamsDTO.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public record QueryParamsDTO(
+    @JsonProperty("parameters") Map<String, Object> parameters) {
+
+    public QueryParamsDTO {
+        parameters = Objects.requireNonNullElseGet(parameters, HashMap::new);
+        parameters = new HashMap<>(parameters); 
+    }
+
+    public QueryParamsDTO withSessionParameter(String key, Object value) {
+        Map<String, Object> updatedParams = new HashMap<>(this.parameters());
+        updatedParams.put(key, value);
+        return new QueryParamsDTO(updatedParams); 
+    }
+
+    public QueryParamsDTO withSessionParameters(Map<String, Object> parameters) {
+        Map<String, Object> updatedParams = new HashMap<>(this.parameters());
+        updatedParams.putAll(parameters);
+        return new QueryParamsDTO(updatedParams);
+    }
+}

src.bak/main/java/com/example/dto/dialogflow/conversation/QueryResultDTO.java

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.Map;
+
+public record QueryResultDTO(
+        @JsonProperty("responseText") String responseText,
+        @JsonProperty("parameters") Map<String, Object> parameters
+) {}

src.bak/main/java/com/example/dto/dialogflow/conversation/TextInputDTO.java

@@ -0,0 +1,8 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+public record TextInputDTO(String text) {}

src.bak/main/java/com/example/dto/dialogflow/conversation/UsuarioDTO.java

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import jakarta.validation.constraints.NotBlank;
+
+public record UsuarioDTO(
+    @JsonProperty("telefono") @NotBlank String telefono,
+    @JsonProperty("nickname") String nickname
+) {}

src.bak/main/java/com/example/dto/dialogflow/notification/EventInputDTO.java

@@ -0,0 +1,10 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.notification;
+
+public record EventInputDTO(
+    String event
+) {}

src.bak/main/java/com/example/dto/dialogflow/notification/ExternalNotRequestDTO.java

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.notification;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public record ExternalNotRequestDTO(
+    @JsonProperty("texto") String text,
+    @JsonProperty("telefono") String phoneNumber,
+    @JsonProperty("parametrosOcultos") java.util.Map<String, String> hiddenParameters
+) {
+    public ExternalNotRequestDTO {
+    }
+}

src.bak/main/java/com/example/dto/dialogflow/notification/NotificationDTO.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+package com.example.dto.dialogflow.notification;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import java.time.Instant;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * Represents a notification record to be stored in Firestore and cached in
+ * Redis.
+ */
+@JsonIgnoreProperties(ignoreUnknown = true) // Ignorar campos adicionales durante la deserialización
+public record NotificationDTO(
+        String idNotificacion, // ID único para esta notificación (ej. el sessionId usado con Dialogflow)
+        String telefono,
+        Instant timestampCreacion, // Momento en que la notificación fue procesada
+        String texto, // 'texto' original de NotificationRequestDTO (si aplica)
+        String nombreEventoDialogflow, // Nombre del evento enviado a Dialogflow (ej. "tu Estado de cuenta listo")
+        String codigoIdiomaDialogflow, // Código de idioma usado para el evento
+        Map<String, Object> parametros, // Parámetros de sesión finales después del procesamiento de// Dialogflow
+        String status 
+) {
+    public NotificationDTO {
+        Objects.requireNonNull(idNotificacion, "Notification ID cannot be null.");
+        Objects.requireNonNull(timestampCreacion, "Notification timestamp cannot be null.");
+        Objects.requireNonNull(nombreEventoDialogflow, "Dialogflow event name cannot be null.");
+        Objects.requireNonNull(codigoIdiomaDialogflow, "Dialogflow language code cannot be null.");
+    }
+}

src.bak/main/java/com/example/dto/dialogflow/notification/NotificationSessionDTO.java

@@ -0,0 +1,24 @@
+// src/main/java/com/example/dto/dialogflow/notification/NotificationSessionDTO.java
+package com.example.dto.dialogflow.notification;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import java.time.Instant;
+import java.util.List;
+import java.util.Objects;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public record NotificationSessionDTO(
+        String sessionId, // The unique session identifier (e.g., the phone number)
+        String telefono, // The phone number for this session
+        Instant fechaCreacion, // When the session was first created
+        Instant ultimaActualizacion, // When the session was last updated
+        List<NotificationDTO> notificaciones // List of individual notification events
+) {
+    public NotificationSessionDTO {
+        Objects.requireNonNull(sessionId, "Session ID cannot be null.");
+        Objects.requireNonNull(telefono, "Phone number cannot be null.");
+        Objects.requireNonNull(fechaCreacion, "Creation timestamp cannot be null.");
+        Objects.requireNonNull(ultimaActualizacion, "Last updated timestamp cannot be null.");
+        Objects.requireNonNull(notificaciones, "Notifications list cannot be null.");
+    }
+}

src.bak/main/java/com/example/dto/llm/webhook/SessionInfoDTO.java

@@ -0,0 +1,23 @@
+package com.example.dto.llm.webhook;
+
+import java.util.Map;
+
+public class SessionInfoDTO {
+
+    private Map<String, Object> parameters;
+
+    public SessionInfoDTO() {
+    }
+
+    public SessionInfoDTO(Map<String, Object> parameters) {
+        this.parameters = parameters;
+    }
+
+    public Map<String, Object> getParameters() {
+        return parameters;
+    }
+
+    public void setParameters(Map<String, Object> parameters) {
+        this.parameters = parameters;
+    }
+}

src.bak/main/java/com/example/dto/llm/webhook/WebhookRequestDTO.java

@@ -0,0 +1,17 @@
+package com.example.dto.llm.webhook;
+
+public class WebhookRequestDTO {
+
+    private SessionInfoDTO sessionInfo;
+
+    public WebhookRequestDTO() {
+    }
+
+    public SessionInfoDTO getSessionInfo() {
+        return sessionInfo;
+    }
+
+    public void setSessionInfo(SessionInfoDTO sessionInfo) {
+        this.sessionInfo = sessionInfo;
+    }
+}

src.bak/main/java/com/example/dto/llm/webhook/WebhookResponseDTO.java

@@ -0,0 +1,24 @@
+package com.example.dto.llm.webhook;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class WebhookResponseDTO {
+
+    @JsonProperty("sessionInfo")
+    private SessionInfoDTO sessionInfo;
+
+    public WebhookResponseDTO() {
+    }
+
+    public WebhookResponseDTO(SessionInfoDTO sessionInfo) {
+        this.sessionInfo = sessionInfo;
+    }
+
+    public SessionInfoDTO getSessionInfo() {
+        return sessionInfo;
+    }
+
+    public void setSessionInfo(SessionInfoDTO sessionInfo) {
+        this.sessionInfo = sessionInfo;
+    }
+}

src.bak/main/java/com/example/dto/quickreplies/QuestionDTO.java

@@ -0,0 +1,7 @@
+package com.example.dto.quickreplies;
+import com.fasterxml.jackson.annotation.JsonProperty;
+public record QuestionDTO(
+    @JsonProperty("titulo") String titulo,
+    @JsonProperty("descripcion") String descripcion,
+    @JsonProperty("respuesta") String respuesta
+) {}

src.bak/main/java/com/example/dto/quickreplies/QuickReplyDTO.java

@@ -0,0 +1,10 @@
+package com.example.dto.quickreplies;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.List;
+public record QuickReplyDTO(
+    @JsonProperty("header") String header,
+    @JsonProperty("body") String body,
+    @JsonProperty("button") String button,
+    @JsonProperty("header_section") String headerSection,
+    @JsonProperty("preguntas") List<QuestionDTO> preguntas
+) {}

src.bak/main/java/com/example/dto/quickreplies/QuickReplyScreenRequestDTO.java

@@ -0,0 +1,14 @@
+package com.example.dto.quickreplies;
+
+import com.example.dto.dialogflow.conversation.ConversationEntryType;
+import com.example.dto.dialogflow.conversation.UsuarioDTO;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public record QuickReplyScreenRequestDTO(
+    @JsonProperty("usuario") UsuarioDTO user,
+    @JsonProperty("canal") String channel,
+    @JsonProperty("tipo") ConversationEntryType tipo,
+    @JsonProperty("pantallaContexto") String pantallaContexto
+) {}

src.bak/main/java/com/example/exception/DialogflowClientException.java

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.exception;
+
+public class DialogflowClientException extends RuntimeException {
+
+    public DialogflowClientException(String message) {
+        super(message);
+    }
+
+    public DialogflowClientException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

src.bak/main/java/com/example/exception/FirestorePersistenceException.java

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.exception;
+
+public class FirestorePersistenceException extends RuntimeException {
+
+    public FirestorePersistenceException(String message) {
+        super(message);
+    }
+
+    public FirestorePersistenceException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

src.bak/main/java/com/example/exception/GeminiClientException.java

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.exception;
+
+public class GeminiClientException extends Exception {
+
+    public GeminiClientException(String message) {
+        super(message);
+    }
+
+    public GeminiClientException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

src.bak/main/java/com/example/exception/GlobalExceptionHandler.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.exception;
+
+import java.util.HashMap;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+
+    private static final Logger logger = LoggerFactory.getLogger(GlobalExceptionHandler.class);
+
+    @ExceptionHandler(DialogflowClientException.class)
+    public ResponseEntity<Map<String, String>> handleDialogflowClientException(
+            DialogflowClientException ex) { 
+        Map<String, String> error = new HashMap<>();
+        error.put("error", "Error communicating with Dialogflow");
+        error.put("message", ex.getMessage());
+        logger.error("DialogflowClientException: {}", ex.getMessage());
+        return new ResponseEntity<>(error, HttpStatus.SERVICE_UNAVAILABLE);
+    }
+
+    @ExceptionHandler(GeminiClientException.class)
+    public ResponseEntity<Map<String, String>> handleGeminiClientException(GeminiClientException ex) {
+        Map<String, String> error = new HashMap<>();
+        error.put("error", "Error communicating with Gemini");
+        error.put("message", ex.getMessage());
+        logger.error("GeminiClientException: {}", ex.getMessage());
+        return new ResponseEntity<>(error, HttpStatus.SERVICE_UNAVAILABLE);
+    }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<Map<String, String>> handleAllExceptions(Exception ex) {
+        Map<String, String> error = new HashMap<>();
+        error.put("error", "Internal Server Error");
+        error.put("message", ex.getMessage());
+        logger.error("An unexpected error occurred: {}", ex.getMessage(), ex);
+        return new ResponseEntity<>(error, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+}

src.bak/main/java/com/example/mapper/conversation/ConversationEntryMapper.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.conversation;
+
+import com.example.dto.dialogflow.conversation.ConversationEntryDTO;
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import com.example.dto.dialogflow.conversation.MessageType;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ConversationEntryMapper {
+
+    public ConversationMessageDTO toConversationMessageDTO(ConversationEntryDTO entry) {
+        MessageType type = switch (entry.entity()) {
+            case USUARIO -> MessageType.USER;
+            case AGENTE -> MessageType.AGENT;
+            case SISTEMA -> MessageType.SYSTEM;
+            case LLM -> MessageType.LLM;
+        };
+
+        return new ConversationMessageDTO(
+                type,
+                entry.timestamp(),
+                entry.text(),
+                entry.parameters(),
+                entry.canal()
+        );
+    }
+}

src.bak/main/java/com/example/mapper/conversation/ConversationMessageMapper.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.conversation;
+import com.google.cloud.Timestamp;
+
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import com.example.dto.dialogflow.conversation.MessageType;
+import org.springframework.stereotype.Component;
+
+import java.time.Instant;
+import java.util.HashMap;
+import java.util.Map;
+
+@Component
+public class ConversationMessageMapper {
+
+    public Map<String, Object> toMap(ConversationMessageDTO message) {
+        Map<String, Object> map = new HashMap<>();
+        map.put("entidad", message.type().name());
+        map.put("tiempo", message.timestamp());
+        map.put("mensaje", message.text());
+        if (message.parameters() != null) {
+            map.put("parametros", message.parameters());
+        }
+        if (message.canal() != null) {
+            map.put("canal", message.canal());
+        }
+        return map;
+    }
+
+    public ConversationMessageDTO fromMap(Map<String, Object> map) {
+        Object timeObject = map.get("tiempo");
+        Instant timestamp = null;
+        if (timeObject instanceof Timestamp) {
+            timestamp = ((Timestamp) timeObject).toDate().toInstant();
+        } else if (timeObject instanceof Instant) {
+            timestamp = (Instant) timeObject;
+        }
+        return new ConversationMessageDTO(
+                MessageType.valueOf((String) map.get("entidad")),
+                timestamp,
+                (String) map.get("mensaje"),
+                (Map<String, Object>) map.get("parametros"),
+                (String) map.get("canal")
+        );
+    }
+}

src.bak/main/java/com/example/mapper/conversation/DialogflowRequestMapper.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.conversation;
+
+import com.example.dto.dialogflow.base.DetectIntentRequestDTO;
+import com.example.dto.dialogflow.conversation.QueryInputDTO;
+import com.example.util.ProtobufUtil;
+import com.google.cloud.dialogflow.cx.v3.EventInput;
+import com.google.cloud.dialogflow.cx.v3.DetectIntentRequest;
+
+import com.google.cloud.dialogflow.cx.v3.QueryInput;
+import com.google.cloud.dialogflow.cx.v3.QueryParameters;
+import com.google.cloud.dialogflow.cx.v3.TextInput;
+import com.google.protobuf.Struct;
+import com.google.protobuf.Value;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * Spring component responsible for mapping a custom `DetectIntentRequestDTO`
+ * into a Dialogflow CX `DetectIntentRequest.Builder`. It handles the conversion
+ * of user text or event inputs and the serialization of custom session parameters,
+ * ensuring the data is in the correct Protobuf format for API communication.
+ */
+@Component
+public class DialogflowRequestMapper {
+
+    private static final Logger logger = LoggerFactory.getLogger(DialogflowRequestMapper.class);
+
+    @org.springframework.beans.factory.annotation.Value("${dialogflow.default-language-code:es}")
+    String defaultLanguageCode;
+
+    public DetectIntentRequest.Builder mapToDetectIntentRequestBuilder(DetectIntentRequestDTO requestDto) {
+        Objects.requireNonNull(requestDto, "DetectIntentRequestDTO cannot be null for mapping.");
+
+        logger.debug(
+                "Building partial Dialogflow CX DetectIntentRequest Protobuf Builder from DTO (only QueryInput and QueryParams).");
+        QueryInput.Builder queryInputBuilder = QueryInput.newBuilder();
+        QueryInputDTO queryInputDTO = requestDto.queryInput();
+
+        String languageCodeToSet = (queryInputDTO.languageCode() != null
+                && !queryInputDTO.languageCode().trim().isEmpty())
+                        ? queryInputDTO.languageCode()
+                        : defaultLanguageCode;
+        queryInputBuilder.setLanguageCode(languageCodeToSet);
+        logger.debug("Setting languageCode for QueryInput to: {}", languageCodeToSet);
+
+        if (queryInputDTO.text() != null && queryInputDTO.text().text() != null
+                && !queryInputDTO.text().text().trim().isEmpty()) {
+            queryInputBuilder.setText(TextInput.newBuilder()
+                    .setText(queryInputDTO.text().text())
+                    .build());
+            logger.debug("Mapped text input for QueryInput: '{}'", queryInputDTO.text().text());
+
+        } else if (queryInputDTO.event() != null && queryInputDTO.event().event() != null
+                && !queryInputDTO.event().event().trim().isEmpty()) {
+            queryInputBuilder.setEvent(EventInput.newBuilder()
+                    .setEvent(queryInputDTO.event().event())
+                    .build());
+            logger.debug("Mapped event input for QueryInput: '{}'", queryInputDTO.event().event());
+
+        } else {
+            logger.error("Dialogflow query input (either text or event) is required and must not be empty.");
+            throw new IllegalArgumentException("Dialogflow query input (either text or event) is required.");
+        }
+
+        QueryParameters.Builder queryParametersBuilder = QueryParameters.newBuilder();
+        Struct.Builder paramsStructBuilder = Struct.newBuilder();
+
+        if (requestDto.queryParams() != null && requestDto.queryParams().parameters() != null) {
+            for (Map.Entry<String, Object> entry : requestDto.queryParams().parameters().entrySet()) {
+                Value protobufValue = ProtobufUtil.convertJavaObjectToProtobufValue(entry.getValue());
+                paramsStructBuilder.putFields(entry.getKey(), protobufValue);
+                logger.debug("Added session parameter from DTO queryParams: Key='{}', Value='{}'",
+                entry.getKey(),entry.getValue());
+            }
+        }
+
+        if (paramsStructBuilder.getFieldsCount() > 0) {
+            queryParametersBuilder.setParameters(paramsStructBuilder.build());
+            logger.debug("All custom session parameters added to Protobuf request builder.");
+        } else {
+            logger.debug("No custom session parameters to add to Protobuf request.");
+        }
+
+        DetectIntentRequest.Builder detectIntentRequestBuilder = DetectIntentRequest.newBuilder()
+                .setQueryInput(queryInputBuilder.build());
+
+        if (queryParametersBuilder.hasParameters()) {
+            detectIntentRequestBuilder.setQueryParams(queryParametersBuilder.build());
+        }
+
+        logger.debug("Finished building partial DetectIntentRequest Protobuf Builder.");
+        return detectIntentRequestBuilder;
+    }
+}

src.bak/main/java/com/example/mapper/conversation/DialogflowResponseMapper.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.conversation;
+
+import com.google.cloud.dialogflow.cx.v3.QueryResult;
+import com.google.cloud.dialogflow.cx.v3.ResponseMessage;
+import com.google.cloud.dialogflow.cx.v3.DetectIntentResponse;
+import com.example.dto.dialogflow.base.DetectIntentResponseDTO;
+import com.example.dto.dialogflow.conversation.QueryResultDTO;
+import com.example.util.ProtobufUtil;
+
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+/**
+ * Spring component responsible for mapping a Dialogflow CX API response
+ * (`DetectIntentResponse`) to a simplified custom DTO (`DetectIntentResponseDTO`).
+ * It extracts and consolidates the fulfillment text, and converts Protobuf
+ * session parameters into standard Java objects, providing a clean and
+ * decoupled interface for consuming Dialogflow results.
+ */
+@Component
+public class DialogflowResponseMapper {
+
+    private static final Logger logger = LoggerFactory.getLogger(DialogflowResponseMapper.class);
+
+    public DetectIntentResponseDTO mapFromDialogflowResponse(DetectIntentResponse response, String sessionId) {
+
+        logger.info("Starting mapping of Dialogflow DetectIntentResponse for session: {}", sessionId);
+
+        String responseId = response.getResponseId();
+        QueryResult dfQueryResult = response.getQueryResult();
+        logger.debug("Extracted QueryResult object for session: {}", sessionId);
+
+        StringBuilder responseTextBuilder = new StringBuilder();
+        if (dfQueryResult.getResponseMessagesList().isEmpty()) {
+            logger.debug("No response messages found in QueryResult for session: {}", sessionId);
+        }
+
+        for (ResponseMessage message : dfQueryResult.getResponseMessagesList()) {
+            if (message.hasText()) {
+                logger.debug("Processing text response message for session: {}", sessionId);
+                for (String text : message.getText().getTextList()) {
+                    if (responseTextBuilder.length() > 0) {
+                        responseTextBuilder.append(" ");
+                    }
+                    responseTextBuilder.append(text);
+                    logger.debug("Appended text segment: '{}' to fulfillment text for session: {}", text, sessionId);
+                }
+            } else {
+                logger.debug("Skipping non-text response message type: {} for session: {}", message.getMessageCase(), sessionId);
+            }
+        }
+
+        String responseText = responseTextBuilder.toString().trim();
+
+        Map<String, Object> parameters = new LinkedHashMap<>(); // Inicializamos vacío para evitar NPEs después
+
+        if (dfQueryResult.hasParameters()) {
+            // Usamos un forEach en lugar de Collectors.toMap para tener control total sobre nulos
+            dfQueryResult.getParameters().getFieldsMap().forEach((key, value) -> {
+                try {
+                    Object convertedValue = ProtobufUtil.convertProtobufValueToJavaObject(value);
+                    
+                    // Si el valor convertido es nulo, decidimos qué hacer. 
+                    // Lo mejor es poner un String vacío o ignorarlo para que no explote tu lógica.
+                    if (convertedValue != null) {
+                        parameters.put(key, convertedValue);
+                    } else {
+                        logger.warn("El parámetro '{}' devolvió un valor nulo al convertir. Se ignorará.", key);
+                        // Opcional: parameters.put(key, ""); 
+                    }
+                } catch (Exception e) {
+                    logger.error("Error convirtiendo el parámetro '{}' de Protobuf a Java: {}", key, e.getMessage());
+                }
+            });
+
+            logger.debug("Extracted parameters: {} for session: {}", parameters, sessionId);
+        } else {
+            logger.debug("No parameters found in QueryResult for session: {}. Using empty map.", sessionId);
+        }
+
+        QueryResultDTO ourQueryResult = new QueryResultDTO(responseText, parameters);
+        logger.debug("Internal QueryResult DTO created for session: {}. Details: {}", sessionId, ourQueryResult);
+
+        DetectIntentResponseDTO finalResponse = new DetectIntentResponseDTO(responseId, ourQueryResult);
+        logger.info("Finished mapping DialogflowDetectIntentResponse for session: {}. Full response ID: {}", sessionId, responseId);
+        return finalResponse;
+    }
+    
+}

src.bak/main/java/com/example/mapper/conversation/ExternalConvRequestMapper.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.conversation;
+
+import com.example.dto.dialogflow.base.DetectIntentRequestDTO;
+import com.example.dto.dialogflow.conversation.ExternalConvRequestDTO;
+import com.example.dto.dialogflow.conversation.QueryInputDTO;
+import com.example.dto.dialogflow.conversation.QueryParamsDTO;
+import com.example.dto.dialogflow.conversation.TextInputDTO;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * Spring component responsible for mapping a simplified, external API request
+ * into a structured `DetectIntentRequestDTO` for Dialogflow. It processes
+ * user messages and relevant context, such as phone numbers and channel information,
+ * and populates the `QueryInputDTO` and `QueryParamsDTO` fields required for
+ * a Dialogflow API call.
+ */
+@Component
+public class ExternalConvRequestMapper {
+
+    private static final Logger logger = LoggerFactory.getLogger(ExternalConvRequestMapper.class);
+    private static final String DEFAULT_LANGUAGE_CODE = "es";
+
+    public DetectIntentRequestDTO mapExternalRequestToDetectIntentRequest(ExternalConvRequestDTO externalRequest) {
+        Objects.requireNonNull(externalRequest, "ExternalRequestDTO cannot be null for mapping.");
+
+        if (externalRequest.message() == null || externalRequest.message().isBlank()) {
+            throw new IllegalArgumentException("External request 'mensaje' (message) is required.");
+        }
+        TextInputDTO textInput = new TextInputDTO(externalRequest.message());
+        QueryInputDTO queryInputDTO = new QueryInputDTO(textInput,null,DEFAULT_LANGUAGE_CODE);
+
+        // 2. Map ALL relevant external fields into QueryParamsDTO.parameters
+        Map<String, Object> parameters = new HashMap<>();
+
+        String primaryPhoneNumber = null;
+        if (externalRequest.user() != null && externalRequest.user().telefono() != null
+                && !externalRequest.user().telefono().isBlank()) {
+            primaryPhoneNumber = externalRequest.user().telefono();
+            parameters.put("telefono", primaryPhoneNumber);
+        }
+
+        if (primaryPhoneNumber == null || primaryPhoneNumber.isBlank()) {
+            throw new IllegalArgumentException(
+                    "Phone number is required in the 'usuario' field for conversation management.");
+        }
+
+        String resolvedUserId = null;
+        // Derive from phone number if not provided by 'userId' parameter
+        resolvedUserId = "user_by_phone_" + primaryPhoneNumber.replaceAll("[^0-9]", "");
+        parameters.put("usuario_id", resolvedUserId); // Ensure derived ID is also in params
+        logger.warn("User ID not provided in external request. Using derived ID from phone number: {}", resolvedUserId);
+
+
+        if (externalRequest.channel() != null && !externalRequest.channel().isBlank()) {
+            parameters.put("canal", externalRequest.channel());
+            logger.debug("Mapped 'canal' from external request: {}", externalRequest.channel());
+        }
+
+        if (externalRequest.user() != null && externalRequest.user().nickname() != null
+                && !externalRequest.user().nickname().isBlank()) {
+            parameters.put("nickname", externalRequest.user().nickname());
+            logger.debug("Mapped 'nickname' from external request: {}", externalRequest.user().nickname());
+        }
+        if (externalRequest.tipo() != null) {
+            parameters.put("tipo", externalRequest.tipo());
+            logger.debug("Mapped 'tipo' from external request: {}", externalRequest.tipo());
+        }
+
+        QueryParamsDTO queryParamsDTO = new QueryParamsDTO(parameters);
+
+        // 3. Construct the final DetectIntentRequestDTO
+        return new DetectIntentRequestDTO(queryInputDTO, queryParamsDTO);
+    }
+}

src.bak/main/java/com/example/mapper/conversation/FirestoreConversationMapper.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.conversation;
+
+import com.example.dto.dialogflow.conversation.ConversationSessionDTO;
+import com.google.cloud.Timestamp;
+import com.google.cloud.firestore.DocumentSnapshot;
+import org.springframework.stereotype.Component;
+
+import java.time.Instant;
+import java.util.HashMap;
+import java.util.Map;
+
+@Component
+public class FirestoreConversationMapper {
+
+    public ConversationSessionDTO mapFirestoreDocumentToConversationSessionDTO(DocumentSnapshot document) {
+        if (document == null || !document.exists()) {
+            return null;
+        }
+
+        Timestamp createdAtTimestamp = document.getTimestamp("fechaCreacion");
+        Timestamp lastModifiedTimestamp = document.getTimestamp("ultimaActualizacion");
+
+        Instant createdAt = (createdAtTimestamp != null) ? createdAtTimestamp.toDate().toInstant() : null;
+        Instant lastModified = (lastModifiedTimestamp != null) ? lastModifiedTimestamp.toDate().toInstant() : null;
+
+        return new ConversationSessionDTO(
+                document.getString("sessionId"),
+                document.getString("userId"),
+                document.getString("telefono"),
+                createdAt,
+                lastModified,
+                document.getString("ultimoMensaje"),
+                document.getString("pantallaContexto")
+        );
+    }
+
+    public Map<String, Object> createSessionMap(ConversationSessionDTO session) {
+        Map<String, Object> sessionMap = new HashMap<>();
+        sessionMap.put("sessionId", session.sessionId());
+        sessionMap.put("userId", session.userId());
+        sessionMap.put("telefono", session.telefono());
+        sessionMap.put("fechaCreacion", session.createdAt());
+        sessionMap.put("ultimaActualizacion", session.lastModified());
+        sessionMap.put("ultimoMensaje", session.lastMessage());
+        sessionMap.put("pantallaContexto", session.pantallaContexto());
+        return sessionMap;
+    }
+}

src.bak/main/java/com/example/mapper/messagefilter/ConversationContextMapper.java

@@ -0,0 +1,119 @@
+package com.example.mapper.messagefilter;
+
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import com.example.dto.dialogflow.conversation.ConversationSessionDTO;
+import com.example.dto.dialogflow.conversation.MessageType;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Component
+public class ConversationContextMapper {
+
+    @Value("${conversation.context.message.limit:60}")
+    private int messageLimit;
+
+    @Value("${conversation.context.days.limit:30}")
+    private int daysLimit;
+
+    private static final int MAX_HISTORY_BYTES = 50 * 1024; // 50 KB
+    
+    private static final String NOTIFICATION_TEXT_PARAM = "notification_text"; 
+
+    public String toText(ConversationSessionDTO session, List<ConversationMessageDTO> messages) {
+        if (messages == null || messages.isEmpty()) {
+            return "";
+        }
+        return toTextFromMessages(messages);
+    }
+
+    public String toTextWithLimits(ConversationSessionDTO session, List<ConversationMessageDTO> messages) {
+        if (messages == null || messages.isEmpty()) {
+            return "";
+        }
+
+        Instant thirtyDaysAgo = Instant.now().minus(daysLimit, ChronoUnit.DAYS);
+
+        List<ConversationMessageDTO> recentEntries = messages.stream()
+                .filter(entry -> entry.timestamp() != null && entry.timestamp().isAfter(thirtyDaysAgo))
+                .sorted(Comparator.comparing(ConversationMessageDTO::timestamp).reversed())
+                .limit(messageLimit)
+                .sorted(Comparator.comparing(ConversationMessageDTO::timestamp))
+                .collect(Collectors.toList());
+        return toTextWithTruncation(recentEntries);
+    }
+
+    public String toTextFromMessages(List<ConversationMessageDTO> messages) {
+        return messages.stream()
+                .map(this::formatEntry) 
+                .collect(Collectors.joining("\n"));
+    }
+
+    public String toTextWithTruncation(List<ConversationMessageDTO> messages) {
+        if (messages == null || messages.isEmpty()) {
+            return "";
+        }
+
+        StringBuilder textBlock = new StringBuilder();
+        List<String> formattedMessages = messages.stream()
+                .map(this::formatEntry)
+                .collect(Collectors.toList());
+
+        for (int i = formattedMessages.size() - 1; i >= 0; i--) {
+            String message = formattedMessages.get(i) + "\n";
+            if (textBlock.toString().getBytes(java.nio.charset.StandardCharsets.UTF_8).length + message.getBytes(java.nio.charset.StandardCharsets.UTF_8).length > MAX_HISTORY_BYTES) {
+                break;
+            }
+            textBlock.insert(0, message);
+        }
+
+        return textBlock.toString().trim();
+    }
+
+    private String formatEntry(ConversationMessageDTO entry) {
+        String prefix = "User: ";
+        String content = entry.text(); 
+
+        if (entry.type() != null) {
+            switch (entry.type()) {
+                case AGENT:
+                    prefix = "Agent: ";
+                    break;
+                case SYSTEM:
+                    prefix = "System: ";
+                    // fix: add notification in the conversation. 
+                    if (entry.parameters() != null && entry.parameters().containsKey(NOTIFICATION_TEXT_PARAM)) {
+                        Object paramText = entry.parameters().get(NOTIFICATION_TEXT_PARAM);
+                        if (paramText != null && !paramText.toString().isBlank()) {
+                            content = paramText.toString();
+                        }
+                    }
+                    break;
+                case LLM: 
+                     prefix = "System: ";
+                     break;
+                case USER:
+                default:
+                    prefix = "User: ";
+                    break;
+            }
+        }
+
+        String text = prefix + content;
+
+        if (entry.type() == MessageType.AGENT) {
+            text = cleanAgentMessage(text);
+        }
+
+        return text;
+    }
+
+    private String cleanAgentMessage(String message) {
+        return message.replaceAll("\\s*\\{.*\\}\\s*$", "").trim();
+    }
+}

src.bak/main/java/com/example/mapper/messagefilter/NotificationContextMapper.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.messagefilter;
+
+import com.example.dto.dialogflow.notification.NotificationDTO;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Component
+public class NotificationContextMapper {
+
+    public String toText(NotificationDTO notification) {
+        if (notification == null || notification.texto() == null) {
+            return "";
+        }
+        return notification.texto();
+    }
+
+    public String toText(List<NotificationDTO> notifications) {
+        if (notifications == null || notifications.isEmpty()) {
+            return "";
+        }
+        return notifications.stream()
+                .map(NotificationDTO::texto)
+                .filter(texto -> texto != null && !texto.isBlank())
+                .collect(Collectors.joining("\n"));
+    }
+}

src.bak/main/java/com/example/mapper/notification/ExternalNotRequestMapper.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.mapper.notification;
+
+import com.example.dto.dialogflow.notification.ExternalNotRequestDTO;
+import com.example.dto.dialogflow.base.DetectIntentRequestDTO;
+import com.example.dto.dialogflow.conversation.QueryInputDTO;
+import com.example.dto.dialogflow.conversation.QueryParamsDTO;
+import com.example.dto.dialogflow.conversation.TextInputDTO;
+
+
+import org.springframework.stereotype.Component;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * Spring component for mapping an external notification request to a Dialogflow `DetectIntentRequestDTO`.
+ * This class takes a simplified `ExternalNotRequestDTO` and converts it into the structured
+ * DTO required for a Dialogflow API call, specifically for triggering a notification event.
+ * It ensures required parameters like the phone number are present and populates the
+ * request with event-specific details.
+ */
+@Component
+public class ExternalNotRequestMapper {
+    private static final String LANGUAGE_CODE = "es";
+    private static final String TELEPHONE_PARAM_NAME = "telefono";
+    private static final String NOTIFICATION_TEXT_PARAM = "notification_text";
+    private static final String NOTIFICATION_LABEL = "NOTIFICACION";
+    private static final String PREFIX_PO_PARAM = "notification_po_";
+
+
+
+    public DetectIntentRequestDTO map(ExternalNotRequestDTO request) {
+        Objects.requireNonNull(request, "NotificationRequestDTO cannot be null for mapping.");
+
+        if (request.phoneNumber() == null || request.phoneNumber().isEmpty()) {
+            throw new IllegalArgumentException("Phone numbers is required and cannot be empty in NotificationRequestDTO.");
+        }
+        String phoneNumber = request.phoneNumber();
+
+        Map<String, Object> parameters = new HashMap<>();
+        parameters.put(TELEPHONE_PARAM_NAME, phoneNumber);
+        parameters.put(NOTIFICATION_TEXT_PARAM, request.text());
+
+
+        if (request.hiddenParameters() != null && !request.hiddenParameters().isEmpty()) {
+            StringBuilder poBuilder = new StringBuilder();
+            request.hiddenParameters().forEach((key, value) -> {
+                parameters.put(PREFIX_PO_PARAM + key, value);
+                poBuilder.append(key).append(": ").append(value).append("\n");
+            });
+            parameters.put("po", poBuilder.toString());
+        }
+
+        TextInputDTO textInput = new TextInputDTO(NOTIFICATION_LABEL);
+        QueryInputDTO queryInput = new QueryInputDTO(textInput, null, LANGUAGE_CODE);
+
+
+        QueryParamsDTO queryParams = new QueryParamsDTO(parameters);
+
+        return new DetectIntentRequestDTO(queryInput, queryParams);
+    }
+}

src.bak/main/java/com/example/mapper/notification/FirestoreNotificationMapper.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+package com.example.mapper.notification;
+
+import com.example.dto.dialogflow.notification.NotificationDTO;
+import org.springframework.stereotype.Component;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.cloud.firestore.DocumentSnapshot;
+
+import java.time.Instant;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * Spring component for mapping notification data between application DTOs and Firestore documents.
+ * This class handles the transformation of Dialogflow event details and notification metadata
+ * into a `NotificationDTO` for persistence and provides methods to serialize and deserialize
+ * this DTO to and from Firestore-compatible data structures.
+ */
+@Component
+public class FirestoreNotificationMapper {
+
+    private static final String DEFAULT_LANGUAGE_CODE = "es";
+    private static final String FIXED_EVENT_NAME = "notificacion";
+    private final ObjectMapper objectMapper;
+    private static final String DEFAULT_NOTIFICATION_STATUS="ACTIVE";
+    
+    public FirestoreNotificationMapper(ObjectMapper objectMapper) {
+        this.objectMapper = objectMapper;
+    }
+
+    public NotificationDTO mapToFirestoreNotification(
+            String notificationId,
+            String telephone,
+            String notificationText,
+            Map<String, Object> parameters) {
+
+        Objects.requireNonNull(notificationId, "Notification ID cannot be null for mapping.");
+        Objects.requireNonNull(notificationText, "Notification text cannot be null for mapping.");
+        Objects.requireNonNull(parameters, "Dialogflow parameters map cannot be null.");
+
+        return new NotificationDTO(
+                notificationId,
+                telephone,
+                Instant.now(),
+                notificationText,
+                FIXED_EVENT_NAME,
+                DEFAULT_LANGUAGE_CODE,
+                parameters,
+                DEFAULT_NOTIFICATION_STATUS
+        );
+    }
+
+    public NotificationDTO mapFirestoreDocumentToNotificationDTO(DocumentSnapshot documentSnapshot) {
+        Objects.requireNonNull(documentSnapshot, "DocumentSnapshot cannot be null for mapping.");
+        if (!documentSnapshot.exists()) {
+            throw new IllegalArgumentException("DocumentSnapshot does not exist.");
+        }
+        try {
+            return objectMapper.convertValue(documentSnapshot.getData(), NotificationDTO.class);
+        } catch (IllegalArgumentException e) {
+            throw new IllegalArgumentException(
+                    "Failed to convert Firestore document data to NotificationDTO for ID " + documentSnapshot.getId(), e);
+        }
+    }
+
+    public Map<String, Object> mapNotificationDTOToMap(NotificationDTO notificationDTO) {
+        Objects.requireNonNull(notificationDTO, "NotificationDTO cannot be null for mapping to map.");
+        return objectMapper.convertValue(notificationDTO, new com.fasterxml.jackson.core.type.TypeReference<Map<String, Object>>() {});
+    }
+}

src.bak/main/java/com/example/repository/FirestoreBaseRepository.java

@@ -0,0 +1,229 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.repository;
+
+import com.example.util.FirestoreTimestampDeserializer;
+import com.example.util.FirestoreTimestampSerializer;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import com.fasterxml.jackson.module.paramnames.ParameterNamesModule;
+import com.google.api.core.ApiFuture;
+import com.google.cloud.firestore.DocumentReference;
+import com.google.cloud.firestore.DocumentSnapshot;
+import com.google.cloud.firestore.Firestore;
+import com.google.cloud.firestore.Query;
+import com.google.cloud.firestore.QueryDocumentSnapshot;
+import com.google.cloud.firestore.QuerySnapshot;
+import com.google.cloud.firestore.WriteBatch;
+import com.google.cloud.firestore.WriteResult;
+import com.google.cloud.firestore.CollectionReference;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ExecutionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Repository;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+/**
+ * A base repository for performing low-level operations with Firestore. It provides a generic
+ * interface for common data access tasks such as getting document references, performing reads,
+ * writes, and batched updates. This class also handles the serialization and deserialization of
+ * Java objects to and from Firestore documents using an `ObjectMapper`.
+ */
+@Repository
+public class FirestoreBaseRepository {
+
+  private static final Logger logger = LoggerFactory.getLogger(FirestoreBaseRepository.class);
+
+  private final Firestore firestore;
+  private final ObjectMapper objectMapper;
+
+  @Value("${app.id:default-app-id}")
+  private String appId;
+
+  public FirestoreBaseRepository(Firestore firestore, ObjectMapper objectMapper) {
+    this.firestore = firestore;
+    this.objectMapper = objectMapper;
+
+    // Register JavaTimeModule for standard java.time handling
+    if (!ObjectMapper.findModules().stream().anyMatch(m -> m instanceof JavaTimeModule)) {
+      objectMapper.registerModule(new JavaTimeModule());
+    }
+    objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
+
+    // Register ParameterNamesModule, crucial for Java Records and classes compiled with -parameters
+    if (!ObjectMapper.findModules().stream().anyMatch(m -> m instanceof ParameterNamesModule)) {
+      objectMapper.registerModule(new ParameterNamesModule());
+    }
+
+    // These specific Timestamp (Google Cloud) deserializers/serializers are for ObjectMapper
+    // to handle com.google.cloud.Timestamp objects when mapping other types.
+    // They are generally not the cause of the Redis deserialization error for Instant.
+
+    SimpleModule firestoreTimestampModule = new SimpleModule();
+    firestoreTimestampModule.addDeserializer(
+        com.google.cloud.Timestamp.class, new FirestoreTimestampDeserializer());
+    firestoreTimestampModule.addSerializer(
+        com.google.cloud.Timestamp.class, new FirestoreTimestampSerializer());
+    objectMapper.registerModule(firestoreTimestampModule);
+
+    logger.info(
+        "FirestoreBaseRepository initialized with Firestore client and ObjectMapper. App ID will be: {}",
+        appId);
+  }
+
+  public DocumentReference getDocumentReference(String collectionPath, String documentId) {
+    Objects.requireNonNull(collectionPath, "Collection path cannot be null.");
+    Objects.requireNonNull(documentId, "Document ID cannot be null.");
+    return firestore.collection(collectionPath).document(documentId);
+  }
+
+  public <T> T getDocument(DocumentReference docRef, Class<T> clazz)
+      throws InterruptedException, ExecutionException {
+    Objects.requireNonNull(docRef, "DocumentReference cannot be null.");
+    Objects.requireNonNull(clazz, "Class for mapping cannot be null.");
+    ApiFuture<DocumentSnapshot> future = docRef.get();
+    DocumentSnapshot document = future.get();
+    if (document.exists()) {
+      try {
+        logger.debug(
+            "FirestoreBaseRepository: Raw document data for {}: {}",
+            docRef.getPath(),
+            document.getData());
+        T result = objectMapper.convertValue(document.getData(), clazz);
+        return result;
+      } catch (IllegalArgumentException e) {
+        logger.error(
+            "Failed to convert Firestore document data to {}: {}", clazz.getName(), e.getMessage(), e);
+        throw new RuntimeException(
+            "Failed to convert Firestore document data to " + clazz.getName(), e);
+      }
+    }
+    return null;
+  }
+
+  public DocumentSnapshot getDocumentSnapshot(DocumentReference docRef)
+      throws ExecutionException, InterruptedException {
+    Objects.requireNonNull(docRef, "DocumentReference cannot be null.");
+    ApiFuture<DocumentSnapshot> future = docRef.get();
+    return future.get();
+  }
+
+  public Flux<DocumentSnapshot> getDocuments(String collectionPath) {
+    return Flux.create(sink -> {
+        ApiFuture<QuerySnapshot> future = firestore.collection(collectionPath).get();
+        future.addListener(() -> {
+            try {
+                QuerySnapshot querySnapshot = future.get();
+                if (querySnapshot != null) {
+                    querySnapshot.getDocuments().forEach(sink::next);
+                }
+                sink.complete();
+            } catch (InterruptedException | ExecutionException e) {
+                sink.error(e);
+            }
+        }, Runnable::run);
+    });
+  }
+
+  public Mono<DocumentSnapshot> getDocumentsByField(
+      String collectionPath, String fieldName, String value) {
+    return Mono.fromCallable(
+        () -> {
+          Query query = firestore.collection(collectionPath).whereEqualTo(fieldName, value);
+          ApiFuture<QuerySnapshot> future = query.get();
+          QuerySnapshot querySnapshot = future.get();
+          if (!querySnapshot.isEmpty()) {
+            return querySnapshot.getDocuments().get(0);
+          }
+          return null;
+        });
+  }
+
+  public boolean documentExists(DocumentReference docRef)
+      throws InterruptedException, ExecutionException {
+    Objects.requireNonNull(docRef, "DocumentReference cannot be null.");
+    ApiFuture<DocumentSnapshot> future = docRef.get();
+    return future.get().exists();
+  }
+
+  public void setDocument(DocumentReference docRef, Object data)
+      throws InterruptedException, ExecutionException {
+    Objects.requireNonNull(docRef, "DocumentReference cannot be null.");
+    Objects.requireNonNull(data, "Data for setting document cannot be null.");
+    ApiFuture<WriteResult> future = docRef.set(data);
+    WriteResult writeResult = future.get();
+    logger.debug(
+        "Document set: {} with update time: {}", docRef.getPath(), writeResult.getUpdateTime());
+  }
+
+  public void updateDocument(DocumentReference docRef, Map<String, Object> updates)
+      throws InterruptedException, ExecutionException {
+    Objects.requireNonNull(docRef, "DocumentReference cannot be null.");
+    Objects.requireNonNull(updates, "Updates map cannot be null.");
+    ApiFuture<WriteResult> future = docRef.update(updates);
+    WriteResult writeResult = future.get();
+    logger.debug(
+        "Document updated: {} with update time: {}", docRef.getPath(), writeResult.getUpdateTime());
+  }
+
+  public void deleteDocument(DocumentReference docRef) 
+      throws InterruptedException, ExecutionException {
+    Objects.requireNonNull(docRef, "DocumentReference cannot be null.");
+    ApiFuture<WriteResult> future = docRef.delete();
+    WriteResult writeResult = future.get();
+    logger.debug(
+        "Document deleted: {} with update time: {}", docRef.getPath(), writeResult.getUpdateTime());
+  }
+
+  public WriteBatch createBatch() {
+    return firestore.batch();
+  }
+
+  public void commitBatch(WriteBatch batch) throws InterruptedException, ExecutionException {
+    Objects.requireNonNull(batch, "WriteBatch cannot be null.");
+    batch.commit().get();
+    logger.debug("Batch committed successfully.");
+  }
+
+  public String getAppId() {
+    return appId;
+  }
+
+  public void deleteCollection(String collectionPath, int batchSize) {
+    try {
+      CollectionReference collection = firestore.collection(collectionPath);
+      ApiFuture<QuerySnapshot> future = collection.limit(batchSize).get();
+      int deleted = 0;
+      // future.get() blocks on document retrieval
+      List<QueryDocumentSnapshot> documents = future.get().getDocuments();
+      while (!documents.isEmpty()) {
+        for (QueryDocumentSnapshot document : documents) {
+          document.getReference().delete();
+          ++deleted;
+        }
+        future = collection.limit(batchSize).get();
+        documents = future.get().getDocuments();
+      }
+      logger.info("Deleted {} documents from collection {}", deleted, collectionPath);
+    } catch (Exception e) {
+      logger.error("Error deleting collection: " + e.getMessage(), e);
+      throw new RuntimeException("Error deleting collection", e);
+    }
+  }
+
+  public void deleteDocumentAndSubcollections(DocumentReference docRef, String subcollection)
+      throws ExecutionException, InterruptedException {
+    deleteCollection(docRef.collection(subcollection).getPath(), 50);
+    deleteDocument(docRef);
+  }
+}

src.bak/main/java/com/example/service/base/DataPurgeService.java

@@ -0,0 +1,214 @@
+
+package com.example.service.base;
+
+
+
+import com.example.repository.FirestoreBaseRepository;
+
+import com.google.cloud.firestore.CollectionReference;
+
+import com.google.cloud.firestore.Firestore;
+
+import com.google.cloud.firestore.QueryDocumentSnapshot;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+
+import org.slf4j.LoggerFactory;
+
+import org.springframework.beans.factory.annotation.Autowired;
+
+import org.springframework.beans.factory.annotation.Qualifier;
+
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+
+import org.springframework.stereotype.Service;
+
+import reactor.core.publisher.Mono;
+
+import reactor.core.scheduler.Schedulers;
+
+
+
+@Service
+
+public class DataPurgeService {
+
+
+
+    private static final Logger logger = LoggerFactory.getLogger(DataPurgeService.class);
+
+
+
+    private final ReactiveRedisTemplate<String, ?> redisTemplate;
+
+    private final FirestoreBaseRepository firestoreBaseRepository;
+
+
+
+    private final Firestore firestore;
+
+
+
+    @Autowired
+
+    public DataPurgeService(
+
+            @Qualifier("reactiveRedisTemplate") ReactiveRedisTemplate<String, ?> redisTemplate,
+
+            FirestoreBaseRepository firestoreBaseRepository, Firestore firestore) {
+
+        this.redisTemplate = redisTemplate;
+
+        this.firestoreBaseRepository = firestoreBaseRepository;
+
+        this.firestore = firestore;
+
+    }
+
+
+
+    public Mono<Void> purgeAllData() {
+
+        return purgeRedis()
+
+                .then(purgeFirestore());
+
+    }
+
+
+
+    private Mono<Void> purgeRedis() {
+
+        logger.info("Starting Redis data purge.");
+
+        return redisTemplate.getConnectionFactory().getReactiveConnection().serverCommands().flushAll()
+
+                .doOnSuccess(v -> logger.info("Successfully purged all data from Redis."))
+
+                .doOnError(e -> logger.error("Error purging data from Redis.", e))
+
+                .then();
+
+    }
+
+
+
+    private Mono<Void> purgeFirestore() {
+
+        logger.info("Starting Firestore data purge.");
+
+        return Mono.fromRunnable(() -> {
+
+            try {
+
+                String appId = firestoreBaseRepository.getAppId();
+
+                String conversationsCollectionPath = String.format("artifacts/%s/conversations", appId);
+
+                String notificationsCollectionPath = String.format("artifacts/%s/notifications", appId);
+
+
+
+                // Delete 'mensajes' sub-collections in 'conversations'
+
+                logger.info("Deleting 'mensajes' sub-collections from '{}'", conversationsCollectionPath);
+
+                try {
+
+                    List<QueryDocumentSnapshot> conversationDocuments = firestore.collection(conversationsCollectionPath).get().get().getDocuments();
+
+                    for (QueryDocumentSnapshot document : conversationDocuments) {
+
+                        String messagesCollectionPath = document.getReference().getPath() + "/mensajes";
+
+                        logger.info("Deleting sub-collection: {}", messagesCollectionPath);
+
+                        firestoreBaseRepository.deleteCollection(messagesCollectionPath, 50);
+
+                    }
+
+                } catch (Exception e) {
+
+                    if (e.getMessage().contains("NOT_FOUND")) {
+
+                        logger.warn("Collection '{}' not found, skipping.", conversationsCollectionPath);
+
+                    } else {
+
+                        throw e;
+
+                    }
+
+                }
+
+
+
+                // Delete the 'conversations' collection
+
+                logger.info("Deleting collection: {}", conversationsCollectionPath);
+
+                try {
+
+                    firestoreBaseRepository.deleteCollection(conversationsCollectionPath, 50);
+
+                } catch (Exception e) {
+
+                    if (e.getMessage().contains("NOT_FOUND")) {
+
+                        logger.warn("Collection '{}' not found, skipping.", conversationsCollectionPath);
+
+                    }
+
+                    else {
+
+                        throw e;
+
+                    }
+
+                }
+
+
+
+                // Delete the 'notifications' collection
+
+                logger.info("Deleting collection: {}", notificationsCollectionPath);
+
+                try {
+
+                    firestoreBaseRepository.deleteCollection(notificationsCollectionPath, 50);
+
+                } catch (Exception e) {
+
+                    if (e.getMessage().contains("NOT_FOUND")) {
+
+                        logger.warn("Collection '{}' not found, skipping.", notificationsCollectionPath);
+
+                    } else {
+
+                        throw e;
+
+                    }
+
+                }
+
+
+
+                logger.info("Successfully purged Firestore collections.");
+
+            } catch (Exception e) {
+
+                logger.error("Error purging Firestore collections.", e);
+
+                throw new RuntimeException("Failed to purge Firestore collections.", e);
+
+            }
+
+        }).subscribeOn(Schedulers.boundedElastic()).then();
+
+    }
+
+}
+
+

src.bak/main/java/com/example/service/base/DialogflowClientService.java

@@ -0,0 +1,167 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.base;
+
+import com.example.mapper.conversation.DialogflowRequestMapper;
+import com.example.mapper.conversation.DialogflowResponseMapper;
+import com.example.dto.dialogflow.base.DetectIntentRequestDTO;
+import com.example.dto.dialogflow.base.DetectIntentResponseDTO;
+import com.example.exception.DialogflowClientException;
+import com.google.api.gax.rpc.ApiException;
+import com.google.cloud.dialogflow.cx.v3.DetectIntentRequest;
+import com.google.cloud.dialogflow.cx.v3.QueryParameters;
+import com.google.cloud.dialogflow.cx.v3.SessionsClient;
+import com.google.cloud.dialogflow.cx.v3.SessionName;
+import com.google.cloud.dialogflow.cx.v3.SessionsSettings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+import javax.annotation.PreDestroy;
+import java.io.IOException;
+import java.util.Objects;
+import reactor.util.retry.Retry;
+
+/**
+ * Service for interacting with the Dialogflow CX API to detect user DetectIntent.
+ * It encapsulates the low-level API calls, handling request mapping from DTOs,
+ * managing the `SessionsClient`, and translating API responses into DTOs,
+ * all within a reactive programming context.
+ */
+@Service
+public class DialogflowClientService {
+
+    private static final Logger logger = LoggerFactory.getLogger(DialogflowClientService.class);
+
+    private final String dialogflowCxProjectId;
+    private final String dialogflowCxLocation;
+    private final String dialogflowCxAgentId;
+
+    private final DialogflowRequestMapper dialogflowRequestMapper;
+    private final DialogflowResponseMapper dialogflowResponseMapper;
+    private SessionsClient sessionsClient;
+    
+    public DialogflowClientService(
+
+        @org.springframework.beans.factory.annotation.Value("${dialogflow.cx.project-id}") String dialogflowCxProjectId,
+        @org.springframework.beans.factory.annotation.Value("${dialogflow.cx.location}") String dialogflowCxLocation,
+        @org.springframework.beans.factory.annotation.Value("${dialogflow.cx.agent-id}") String dialogflowCxAgentId,
+        DialogflowRequestMapper dialogflowRequestMapper,
+        DialogflowResponseMapper dialogflowResponseMapper)
+        throws IOException {
+
+        this.dialogflowCxProjectId = dialogflowCxProjectId;
+        this.dialogflowCxLocation = dialogflowCxLocation;
+        this.dialogflowCxAgentId = dialogflowCxAgentId;
+        this.dialogflowRequestMapper = dialogflowRequestMapper;
+        this.dialogflowResponseMapper = dialogflowResponseMapper;
+
+        try {
+            String regionalEndpoint = String.format("%s-dialogflow.googleapis.com:443", dialogflowCxLocation);
+            SessionsSettings sessionsSettings = SessionsSettings.newBuilder()
+                .setEndpoint(regionalEndpoint)
+                .build();
+            this.sessionsClient = SessionsClient.create(sessionsSettings);
+            logger.info("Dialogflow CX SessionsClient initialized successfully for endpoint: {}", regionalEndpoint);
+            logger.info("Dialogflow CX SessionsClient initialized successfully for agent - Test Agent version: {}", dialogflowCxAgentId);
+        } catch (IOException e) {
+            logger.error("Failed to create Dialogflow CX SessionsClient: {}", e.getMessage(), e);
+            throw e;
+        }
+    }
+
+    @PreDestroy
+    public void closeSessionsClient() {
+        if (sessionsClient != null) {
+            sessionsClient.close();
+            logger.info("Dialogflow CX SessionsClient closed.");
+        }
+    }
+
+    public Mono<DetectIntentResponseDTO> detectIntent(
+            String sessionId,
+            DetectIntentRequestDTO request) {
+
+        Objects.requireNonNull(sessionId, "Dialogflow session ID cannot be null.");
+        Objects.requireNonNull(request, "Dialogflow request DTO cannot be null.");
+
+        logger.info("Initiating detectIntent for session: {}", sessionId);
+
+        DetectIntentRequest.Builder detectIntentRequestBuilder;
+        try {
+            detectIntentRequestBuilder = dialogflowRequestMapper.mapToDetectIntentRequestBuilder(request);
+            logger.debug("Obtained partial DetectIntentRequest.Builder from mapper for session: {}", sessionId);
+        } catch (IllegalArgumentException e) {
+            logger.error(" Failed to map DTO to partial Protobuf request for session {}: {}", sessionId, e.getMessage());
+            return Mono.error(new IllegalArgumentException("Invalid Dialogflow request input: " + e.getMessage()));
+        }
+
+        SessionName sessionName = SessionName.newBuilder()
+                .setProject(dialogflowCxProjectId)
+                .setLocation(dialogflowCxLocation)
+                .setAgent(dialogflowCxAgentId)
+                .setSession(sessionId)
+                .build();
+        detectIntentRequestBuilder.setSession(sessionName.toString());
+        logger.debug("Set session path {} on the request builder for session: {}", sessionName.toString(), sessionId);
+
+        QueryParameters.Builder queryParamsBuilder;
+        if (detectIntentRequestBuilder.hasQueryParams()) {
+            queryParamsBuilder = detectIntentRequestBuilder.getQueryParams().toBuilder();
+        } else {
+            queryParamsBuilder = QueryParameters.newBuilder();
+        }
+
+        detectIntentRequestBuilder.setQueryParams(queryParamsBuilder.build());
+
+        // Build the final DetectIntentRequest Protobuf object
+        DetectIntentRequest detectIntentRequest = detectIntentRequestBuilder.build();
+        return Mono.fromCallable(() -> {
+            logger.debug("Calling Dialogflow CX detectIntent for session: {}", sessionId);
+            return sessionsClient.detectIntent(detectIntentRequest);
+        })
+
+        .retryWhen(reactor.util.retry.Retry.backoff(3, java.time.Duration.ofSeconds(1))
+            .filter(throwable -> {
+                if (throwable instanceof ApiException apiException) {
+                    com.google.api.gax.rpc.StatusCode.Code code = apiException.getStatusCode().getCode();
+                    boolean isRetryable = code == com.google.api.gax.rpc.StatusCode.Code.INTERNAL || 
+                                          code == com.google.api.gax.rpc.StatusCode.Code.UNAVAILABLE;
+                    if (isRetryable) {
+                        logger.warn("Retrying Dialogflow CX call for session {} due to transient error: {}", sessionId, code);
+                    }
+                    return isRetryable;
+                }
+                return false;
+            })
+            .doBeforeRetry(retrySignal -> logger.debug("Retry attempt #{} for session {}", 
+                retrySignal.totalRetries() + 1, sessionId))
+            .onRetryExhaustedThrow((retrySpec, retrySignal) -> {
+                logger.error("Dialogflow CX retries exhausted for session {}", sessionId);
+                return retrySignal.failure();
+            })
+        )
+        .onErrorMap(ApiException.class, e -> {
+            String statusCode = e.getStatusCode().getCode().name();
+            String message = e.getMessage();
+            String detailedLog = message;
+            
+            if (e.getCause() instanceof io.grpc.StatusRuntimeException grpcEx) {
+                detailedLog = String.format("Status: %s, Message: %s, Trailers: %s", 
+                    grpcEx.getStatus().getCode(), 
+                    grpcEx.getStatus().getDescription(), 
+                    grpcEx.getTrailers());
+            }
+
+            logger.error("Dialogflow CX API error for session {}: details={}", 
+                    sessionId, detailedLog, e);
+
+            return new DialogflowClientException(
+                    "Dialogflow CX API error: " + statusCode + " - " + message, e);
+        })
+        .map(dfResponse -> this.dialogflowResponseMapper.mapFromDialogflowResponse(dfResponse, sessionId));
+    }
+}

src.bak/main/java/com/example/service/base/GeminiClientService.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.base;
+
+import com.example.exception.GeminiClientException;
+import com.google.genai.Client;
+import com.google.genai.errors.GenAiIOException;
+import com.google.genai.types.Content;
+import com.google.genai.types.GenerateContentConfig;
+import com.google.genai.types.GenerateContentResponse;
+import com.google.genai.types.Part;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+
+/**
+ * Service for interacting with the Gemini API to generate content.
+ * It encapsulates the low-level API calls, handling prompt configuration,
+ * and error management to provide a clean and robust content generation interface.
+ */
+@Service
+public class GeminiClientService {
+
+    private static final Logger logger = LoggerFactory.getLogger(GeminiClientService.class);
+    private final Client geminiClient;
+
+    public GeminiClientService(Client geminiClient) {
+        this.geminiClient = geminiClient;
+    }
+
+    public String generateContent(String prompt, Float temperature, Integer maxOutputTokens, String modelName,Float topP) throws GeminiClientException {
+        try {
+            Content content = Content.fromParts(Part.fromText(prompt));
+            GenerateContentConfig config = GenerateContentConfig.builder()
+                    .temperature(temperature)
+                    .maxOutputTokens(maxOutputTokens)
+                    .topP(topP)
+                    .build();
+            
+            logger.debug("Sending request to Gemini model '{}'", modelName);
+            GenerateContentResponse response = geminiClient.models.generateContent(modelName, content, config);
+
+            if (response != null && response.text() != null) {
+                return response.text();
+            } else {
+                logger.warn("Gemini returned no content or an unexpected response structure for model '{}'.", modelName);
+                throw new GeminiClientException("No content generated or unexpected response structure.");
+            }
+        } catch (GenAiIOException e) {
+            logger.error("Gemini API I/O error while calling model '{}': {}", modelName, e.getMessage(), e);
+            throw new GeminiClientException("An API communication issue occurred: " + e.getMessage(), e);
+        } catch (Exception e) {
+            logger.error("An unexpected error occurred during Gemini content generation for model '{}': {}", modelName, e.getMessage(), e);
+            throw new GeminiClientException("An unexpected issue occurred during content generation.", e);
+        }
+    }
+}

src.bak/main/java/com/example/service/base/MessageEntryFilter.java

@@ -0,0 +1,128 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.base;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import jakarta.annotation.PostConstruct;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.Objects;
+import java.io.InputStream;
+
+/**
+ * Classifies a user's text input into a predefined category using a Gemini
+ * model.
+ * It analyzes the user's query in the context of a conversation history and any
+ * relevant notifications to determine if the message is part of the ongoing
+ * dialogue
+ * or an interruption. The classification is used to route the request to the
+ * appropriate handler (e.g., a standard conversational flow or a specific
+ * notification processor).
+ */
+@Service
+public class MessageEntryFilter {
+
+    private static final Logger logger = LoggerFactory.getLogger(MessageEntryFilter.class);
+    private final GeminiClientService geminiService;
+
+    @Value("${messagefilter.geminimodel:gemini-2.0-flash-001}")
+    private String geminiModelNameClassifier;
+
+    @Value("${messagefilter.temperature:0.1f}")
+    private Float classifierTemperature;
+
+    @Value("${messagefilter.maxOutputTokens:10}")
+    private Integer classifierMaxOutputTokens;
+
+    @Value("${messagefilter.topP:0.1f}")
+    private Float classifierTopP;
+
+    @Value("${messagefilter.prompt:prompts/message_filter_prompt.txt}")
+    private String promptFilePath;
+
+    public static final String CATEGORY_CONVERSATION = "CONVERSATION";
+    public static final String CATEGORY_NOTIFICATION = "NOTIFICATION";
+    public static final String CATEGORY_UNKNOWN = "UNKNOWN";
+    public static final String CATEGORY_ERROR = "ERROR";
+
+    private String promptTemplate;
+
+    public MessageEntryFilter(GeminiClientService geminiService) {
+        this.geminiService = Objects.requireNonNull(geminiService,
+                "GeminiClientService cannot be null for MessageEntryFilter.");
+    }
+
+    @PostConstruct
+    public void loadPromptTemplate() {
+        try (InputStream inputStream = getClass().getClassLoader().getResourceAsStream(promptFilePath)) {
+            if (inputStream == null) {
+                throw new IOException("Resource not found: " + promptFilePath);
+            }
+            byte[] fileBytes = inputStream.readAllBytes();
+            this.promptTemplate = new String(fileBytes, StandardCharsets.UTF_8);
+            logger.info("Successfully loaded prompt template from '" + promptFilePath + "'.");
+        } catch (IOException e) {
+            logger.error("Failed to load prompt template from '" + promptFilePath
+                    + "'. Please ensure the file exists. Error: " + e.getMessage());
+            throw new IllegalStateException("Could not load prompt template.", e);
+        }
+    }
+    public String classifyMessage(String queryInputText, String notificationsJson, String conversationJson) {
+        if (queryInputText == null || queryInputText.isBlank()) {
+            logger.warn("Query input text for classification is null or blank. Returning {}.", CATEGORY_UNKNOWN);
+            return CATEGORY_UNKNOWN;
+        }
+    
+        String interruptingNotification = (notificationsJson != null && !notificationsJson.isBlank()) ?
+                notificationsJson : "No interrupting notification.";
+    
+        String conversationHistory = (conversationJson != null && !conversationJson.isBlank()) ?
+                conversationJson : "No conversation history.";
+        
+        String classificationPrompt = String.format(
+            this.promptTemplate,
+            conversationHistory,
+            interruptingNotification,
+            queryInputText
+        );
+    
+        logger.debug("Sending classification request to Gemini for input (first 100 chars): '{}'...",
+            queryInputText.substring(0, Math.min(queryInputText.length(), 100)));
+    
+        try {
+            String geminiResponse = geminiService.generateContent(
+                classificationPrompt,
+                classifierTemperature,
+                classifierMaxOutputTokens,
+                geminiModelNameClassifier,
+                classifierTopP
+            );
+
+            String resultCategory = switch (geminiResponse != null ? geminiResponse.strip().toUpperCase() : "") {
+                case CATEGORY_CONVERSATION -> {
+                    logger.info("Classified as {}.", CATEGORY_CONVERSATION);
+                    yield CATEGORY_CONVERSATION;
+                }
+                case CATEGORY_NOTIFICATION -> {
+                    logger.info("Classified as {}.", CATEGORY_NOTIFICATION);
+                    yield CATEGORY_NOTIFICATION;
+                }
+                default -> {
+                    logger.warn("Gemini returned an unrecognised classification or was null/blank: '{}'. Expected '{}' or '{}'. Returning {}.",
+                            geminiResponse, CATEGORY_CONVERSATION, CATEGORY_NOTIFICATION, CATEGORY_UNKNOWN);
+                    yield CATEGORY_UNKNOWN;
+                }
+            };
+            return resultCategory;
+        } catch (Exception e) {
+            logger.error("An error occurred during Gemini content generation for message classification.", e);
+            return CATEGORY_UNKNOWN;
+        }
+    }
+}

src.bak/main/java/com/example/service/base/NotificationContextResolver.java

@@ -0,0 +1,128 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.service.base;
+
+import com.example.service.notification.MemoryStoreNotificationService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import jakarta.annotation.PostConstruct;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.Objects;
+
+/**
+ * Resolves the conversational context of a user query by leveraging a large
+ * language model (LLM). This service evaluates a user's question in the context
+ * of a specific notification and conversation history, then decides if the
+ * query
+ * can be answered by the LLM or if it should be handled by a standard
+ * Dialogflow agent.
+ * The class loads an LLM prompt from an external file and dynamically
+ * formats it with a user's query and other context to drive its decision-making
+ * process.
+ */
+@Service
+public class NotificationContextResolver {
+
+    private static final Logger logger = LoggerFactory.getLogger(NotificationContextResolver.class);
+    private final GeminiClientService geminiService;
+
+    @Value("${notificationcontext.geminimodel:gemini-2.0-flash-001}")
+    private String geminiModelNameResolver;
+
+    @Value("${notificationcontext.temperature:0.1f}")
+    private Float resolverTemperature;
+
+    @Value("${notificationcontext.maxOutputTokens:1024}")
+    private Integer resolverMaxOutputTokens;
+
+    @Value("${notificationcontext.topP:0.1f}")
+    private Float resolverTopP;
+
+    @Value("${notificationcontext.prompt:prompts/notification_context_resolver.txt}")
+    private String promptFilePath;
+
+    public static final String CATEGORY_DIALOGFLOW = "DIALOGFLOW";
+
+    private String promptTemplate;
+
+    public NotificationContextResolver(GeminiClientService geminiService,
+            MemoryStoreNotificationService memoryStoreNotificationService) {
+        this.geminiService = Objects.requireNonNull(geminiService,
+                "GeminiClientService cannot be null for NotificationContextResolver.");
+    }
+
+    @PostConstruct
+    public void loadPromptTemplate() {
+        try (InputStream inputStream = getClass().getClassLoader().getResourceAsStream(promptFilePath)) {
+            if (inputStream == null) {
+                throw new IOException("Resource not found: " + promptFilePath);
+            }
+            byte[] fileBytes = inputStream.readAllBytes();
+            this.promptTemplate = new String(fileBytes, StandardCharsets.UTF_8);
+            logger.info("Successfully loaded prompt template from '" + promptFilePath + "'.");
+        } catch (IOException e) {
+            logger.error("Failed to load prompt template from '" + promptFilePath
+                    + "'. Please ensure the file exists. Error: " + e.getMessage());
+            throw new IllegalStateException("Could not load prompt template.", e);
+        }
+    }
+
+    public String resolveContext(String queryInputText, String notificationsJson, String conversationJson,
+            String metadata, String userId, String sessionId, String userPhoneNumber) {
+        logger.debug("resolveContext -> queryInputText: {}, notificationsJson: {}, conversationJson: {}, metadata: {}",
+                queryInputText, notificationsJson, conversationJson, metadata);
+        if (queryInputText == null || queryInputText.isBlank()) {
+            logger.warn("Query input text for context resolution is null or blank.", CATEGORY_DIALOGFLOW);
+            return CATEGORY_DIALOGFLOW;
+        }
+
+        String notificationContent = (notificationsJson != null && !notificationsJson.isBlank()) ? notificationsJson
+                : "No metadata in notification.";
+
+        String conversationHistory = (conversationJson != null && !conversationJson.isBlank()) ? conversationJson
+                : "No conversation history.";
+
+        String contextPrompt = String.format(
+                this.promptTemplate,
+                conversationHistory,
+                notificationContent,
+                metadata,
+                queryInputText);
+
+        logger.debug("Sending context resolution request to Gemini for input (first 100 chars): '{}'...",
+                queryInputText.substring(0, Math.min(queryInputText.length(), 100)));
+
+        try {
+            String geminiResponse = geminiService.generateContent(
+                    contextPrompt,
+                    resolverTemperature,
+                    resolverMaxOutputTokens,
+                    geminiModelNameResolver,
+                    resolverTopP);
+
+            if (geminiResponse != null && !geminiResponse.isBlank()) {
+                if (geminiResponse.trim().equalsIgnoreCase(CATEGORY_DIALOGFLOW)) {
+                    logger.debug("Resolved to {}. Input: '{}'", CATEGORY_DIALOGFLOW, queryInputText);
+                    return CATEGORY_DIALOGFLOW;
+                } else {
+                    logger.debug("Resolved to a specific response. Input: '{}'", queryInputText);
+                    return geminiResponse;
+                }
+            } else {
+                logger.warn("Gemini returned a null or blank response",
+                        queryInputText, CATEGORY_DIALOGFLOW);
+                return CATEGORY_DIALOGFLOW;
+            }
+        } catch (Exception e) {
+            logger.error("An error occurred during Gemini content generation for context resolution.", e);
+            return CATEGORY_DIALOGFLOW;
+        }
+    }
+}

src.bak/main/java/com/example/service/conversation/ConversationHistoryService.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.conversation;
+
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.data.domain.Range;
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
+
+/**
+Service for managing the lifecycle and data hygiene of conversation histories stored in MemoryStore.
+It encapsulates the logic for pruning conversation logs to enforce data retention policies.
+Its primary function, pruneHistory, operates on a Redis Sorted Set (ZSET) for a given session,
+performing two main tasks: 
+
+1) removing all messages older than a configurable time limit (e.g., 30 days)
+based on their timestamp score,
+
+2) trimming the remaining set to a maximum message count
+(e.g., 60) by removing the oldest entries, all within a reactive programming context.
+*/
+@Service
+public class ConversationHistoryService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ConversationHistoryService.class);
+
+    private static final String MESSAGES_KEY_PREFIX = "conversation:messages:";
+
+    private final ReactiveRedisTemplate<String, ConversationMessageDTO> messageRedisTemplate;
+
+    @Value("${conversation.context.message.limit:60}")
+    private int messageLimit;
+
+    @Value("${conversation.context.days.limit:30}")
+    private int daysLimit;
+
+    @Autowired
+    public ConversationHistoryService(ReactiveRedisTemplate<String, ConversationMessageDTO> messageRedisTemplate) {
+        this.messageRedisTemplate = messageRedisTemplate;
+    }
+
+    public Mono<Void> pruneHistory(String sessionId) {
+        logger.info("Pruning history for sessionId: {}", sessionId);
+        String messagesKey = MESSAGES_KEY_PREFIX + sessionId;
+
+        Instant cutoff = Instant.now().minus(daysLimit, ChronoUnit.DAYS);
+        Range<Double> scoreRange = Range.of(Range.Bound.inclusive(0d), Range.Bound.inclusive((double) cutoff.toEpochMilli()));
+        logger.info("Removing messages older than {} for sessionId: {}", cutoff, sessionId);
+        Mono<Long> removeByScore = messageRedisTemplate.opsForZSet().removeRangeByScore(messagesKey, scoreRange)
+                .doOnSuccess(count -> logger.info("Removed {} old messages for sessionId: {}", count, sessionId));
+
+
+        Mono<Long> trimToSize = messageRedisTemplate.opsForZSet().size(messagesKey)
+                .flatMap(size -> {
+                    if (size > messageLimit) {
+                        logger.info("Current message count {} exceeds limit {} for sessionId: {}. Trimming...", size, messageLimit, sessionId);
+                        Range<Long> rankRange = Range.of(Range.Bound.inclusive(0L), Range.Bound.inclusive(size - messageLimit - 1));
+                        return messageRedisTemplate.opsForZSet().removeRange(messagesKey, rankRange)
+                                .doOnSuccess(count -> logger.info("Trimmed {} messages for sessionId: {}", count, sessionId));
+                    }
+                    return Mono.just(0L);
+                });
+        return removeByScore.then(trimToSize).then()
+                .doOnSuccess(v -> logger.info("Successfully pruned history for sessionId: {}", sessionId))
+                .doOnError(e -> logger.error("Error pruning history for sessionId: {}", sessionId, e));
+    }
+}

src.bak/main/java/com/example/service/conversation/ConversationManagerService.java

@@ -0,0 +1,422 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.conversation;
+
+import com.example.dto.dialogflow.base.DetectIntentRequestDTO;
+import com.example.dto.dialogflow.base.DetectIntentResponseDTO;
+import com.example.dto.dialogflow.conversation.*;
+import com.example.dto.dialogflow.notification.EventInputDTO;
+import com.example.dto.dialogflow.notification.NotificationDTO;
+import com.example.mapper.conversation.ConversationEntryMapper;
+import com.example.mapper.conversation.ExternalConvRequestMapper;
+import com.example.mapper.messagefilter.ConversationContextMapper;
+import com.example.mapper.messagefilter.NotificationContextMapper;
+import com.example.service.base.DialogflowClientService;
+import com.example.service.base.MessageEntryFilter;
+import com.example.service.base.NotificationContextResolver;
+import com.example.service.notification.MemoryStoreNotificationService;
+import com.example.service.quickreplies.QuickRepliesManagerService;
+import com.example.service.llm.LlmResponseTunerService;
+import com.example.util.SessionIdGenerator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+/**
+Service acting as the central orchestrator for managing user conversations.
+It integrates Data Loss Prevention (DLP) for message obfuscation, multi-stage routing,
+hybrid AI logic, and a reactive write-back persistence layer for conversation history.
+
+Routes traffic based on session context:
+If a 'pantallaContexto' (screen context) is present, it delegates to the QuickRepliesManagerService.
+Otherwise, it uses a Gemini-based MessageEntryFilter to classify the message against 
+active notifications and history, routing to one of two main flows:
+a) Standard Conversation (proceedWithConversation): Handles regular dialogue,
+
+managing 30-minute session timeouts and injecting conversation history parameter to Dialogflow.
+
+b) Notifications  (startNotificationConversation):
+It first asks a Gemini model (NotificationContextResolver) if it can answer the
+query. If yes, it saves the LLM's response and sends an 'LLM_RESPONSE_PROCESSED'
+event to Dialogflow. If no ("DIALOGFLOW"), it sends the user's original text
+to Dialogflow for intent matching.
+
+All conversation turns (user, agent, and LLM) are persisted using a reactive write-back
+cache pattern, saving to Memorystore (Redis) first and then asynchronously to a
+Firestore subcollection data model (persistConversationTurn). 
+*/
+@Service
+public class ConversationManagerService {
+	private static final Logger logger = LoggerFactory.getLogger(ConversationManagerService.class);
+
+	private static final long SESSION_RESET_THRESHOLD_MINUTES = 30;
+	private static final long SCREEN_CONTEXT_TIMEOUT_MINUTES = 10; // fix for the quick replies screen
+	private static final String CONV_HISTORY_PARAM = "conversation_history";
+	private static final String HISTORY_PARAM = "historial";
+	private final ExternalConvRequestMapper externalRequestToDialogflowMapper;
+	private final DialogflowClientService dialogflowServiceClient;
+	private final FirestoreConversationService firestoreConversationService;
+	private final MemoryStoreConversationService memoryStoreConversationService;
+	private final QuickRepliesManagerService quickRepliesManagerService;
+	private final MessageEntryFilter messageEntryFilter;
+	private final MemoryStoreNotificationService memoryStoreNotificationService;
+	private final NotificationContextMapper notificationContextMapper;
+	private final ConversationContextMapper conversationContextMapper;
+	private final DataLossPrevention dataLossPrevention;
+	private final String dlpTemplateCompleteFlow;
+
+	private final NotificationContextResolver notificationContextResolver;
+	private final LlmResponseTunerService llmResponseTunerService;
+	private final ConversationEntryMapper conversationEntryMapper;
+
+	public ConversationManagerService(
+			DialogflowClientService dialogflowServiceClient,
+			FirestoreConversationService firestoreConversationService,
+			MemoryStoreConversationService memoryStoreConversationService,
+			ExternalConvRequestMapper externalRequestToDialogflowMapper,
+			QuickRepliesManagerService quickRepliesManagerService,
+			MessageEntryFilter messageEntryFilter,
+			MemoryStoreNotificationService memoryStoreNotificationService,
+			NotificationContextMapper notificationContextMapper,
+			ConversationContextMapper conversationContextMapper,
+			DataLossPrevention dataLossPrevention,
+			NotificationContextResolver notificationContextResolver,
+			LlmResponseTunerService llmResponseTunerService,
+			ConversationEntryMapper conversationEntryMapper,
+			@Value("${google.cloud.dlp.dlpTemplateCompleteFlow}") String dlpTemplateCompleteFlow) {
+		this.dialogflowServiceClient = dialogflowServiceClient;
+		this.firestoreConversationService = firestoreConversationService;
+		this.memoryStoreConversationService = memoryStoreConversationService;
+		this.externalRequestToDialogflowMapper = externalRequestToDialogflowMapper;
+		this.quickRepliesManagerService = quickRepliesManagerService;
+		this.messageEntryFilter = messageEntryFilter;
+		this.memoryStoreNotificationService = memoryStoreNotificationService;
+		this.notificationContextMapper = notificationContextMapper;
+		this.conversationContextMapper = conversationContextMapper;
+		this.dataLossPrevention = dataLossPrevention;
+		this.dlpTemplateCompleteFlow = dlpTemplateCompleteFlow;
+		this.notificationContextResolver = notificationContextResolver;
+		this.llmResponseTunerService = llmResponseTunerService;
+		this.conversationEntryMapper = conversationEntryMapper;
+
+	}
+
+	public Mono<DetectIntentResponseDTO> manageConversation(ExternalConvRequestDTO externalrequest) {
+		return dataLossPrevention.getObfuscatedString(externalrequest.message(), dlpTemplateCompleteFlow)
+				.flatMap(obfuscatedMessage -> {
+					ExternalConvRequestDTO obfuscatedRequest = new ExternalConvRequestDTO(
+							obfuscatedMessage,
+							externalrequest.user(),
+							externalrequest.channel(),
+							externalrequest.tipo(),
+							externalrequest.pantallaContexto());
+					return memoryStoreConversationService.getSessionByTelefono(externalrequest.user().telefono())
+							.flatMap(session -> {
+								boolean isContextStale = false;
+                            if (session.lastModified() != null) {
+                                long minutesSinceLastUpdate = java.time.Duration.between(session.lastModified(), java.time.Instant.now()).toMinutes();
+                                if (minutesSinceLastUpdate > SCREEN_CONTEXT_TIMEOUT_MINUTES) {
+                                    isContextStale = true;
+                                }
+                            }
+								if (session != null && session.pantallaContexto() != null && !session.pantallaContexto().isBlank() && !isContextStale) {
+									logger.info("Detected 'pantallaContexto' in session. Delegating to QuickRepliesManagerService.");
+									return quickRepliesManagerService.manageConversation(obfuscatedRequest);
+								}
+								// Remove the old QR and continue as normal conversation.
+								if (isContextStale && session.pantallaContexto() != null) {
+									logger.info("Detected STALE 'pantallaContexto'. Ignoring and proceeding with normal flow.");
+								}
+								return continueManagingConversation(obfuscatedRequest);
+							})
+							.switchIfEmpty(continueManagingConversation(obfuscatedRequest));
+				});
+	}
+
+	private Mono<DetectIntentResponseDTO> continueManagingConversation(ExternalConvRequestDTO externalrequest) {
+		final DetectIntentRequestDTO request;
+		try {
+			request = externalRequestToDialogflowMapper.mapExternalRequestToDetectIntentRequest(externalrequest);
+			logger.debug("Successfully pre-mapped ExternalRequestDTO to DetectIntentRequestDTO");
+		} catch (IllegalArgumentException e) {
+			logger.error("Error during pre-mapping: {}", e.getMessage());
+			return Mono.error(new IllegalArgumentException(
+					"Failed to process external request due to mapping error: " + e.getMessage(), e));
+		}
+
+		Map<String, Object> params = Optional.ofNullable(request.queryParams())
+				.map(queryParamsDTO -> queryParamsDTO.parameters())
+				.orElse(Collections.emptyMap());
+
+		Object telefonoObj = params.get("telefono");
+		if (!(telefonoObj instanceof String) || ((String) telefonoObj).isBlank()) {
+			logger.error("Critical error:  parameter is missing, not a String, or blank after mapping.");
+			return Mono.error(new IllegalStateException("Internal error: parameter is invalid."));
+		}
+
+		String primaryPhoneNumber = (String) telefonoObj;
+		String resolvedUserId = params.get("usuario_id") instanceof String ? (String) params.get("usuario_id") : null;
+		String userMessageText = request.queryInput().text().text();
+		final ConversationContext context = new ConversationContext(resolvedUserId, null, userMessageText, primaryPhoneNumber);
+
+		return continueConversationFlow(context, request);
+	}
+
+	private Mono<DetectIntentResponseDTO> continueConversationFlow(ConversationContext context,
+			DetectIntentRequestDTO request) {
+		final String userId = context.userId();
+		final String userMessageText = context.userMessageText();
+		final String userPhoneNumber = context.primaryPhoneNumber();
+
+		if (userPhoneNumber == null || userPhoneNumber.isBlank()) {
+			logger.warn("No phone number provided in request. Cannot manage conversation session without it.");
+			return Mono
+					.error(new IllegalArgumentException("Phone number is required to manage conversation sessions."));
+		}
+
+		logger.info("Primary Check (MemoryStore): Looking up session for phone number: {}", userPhoneNumber);
+		return memoryStoreConversationService.getSessionByTelefono(userPhoneNumber)
+				.flatMap(session -> handleMessageClassification(context, request, session))
+				.switchIfEmpty(Mono.defer(() -> {
+					logger.info("No session found in MemoryStore. Performing full lookup to Firestore.");
+					return fullLookupAndProcess(null, request, userId, userMessageText, userPhoneNumber);
+				}))
+				.onErrorResume(e -> {
+					logger.error("Overall error handling conversation in ConversationManagerService: {}",
+							e.getMessage(), e);
+					return Mono
+							.error(new RuntimeException("Failed to process conversation due to an internal error.", e));
+				});
+	}
+
+	private Mono<DetectIntentResponseDTO> handleMessageClassification(ConversationContext context,
+			DetectIntentRequestDTO request, ConversationSessionDTO session) {
+		final String userPhoneNumber = context.primaryPhoneNumber();
+		final String userMessageText = context.userMessageText();
+
+		return memoryStoreNotificationService.getNotificationIdForPhone(userPhoneNumber)
+				.flatMap(notificationId -> memoryStoreNotificationService.getCachedNotificationSession(notificationId))
+				.map(notificationSession -> notificationSession.notificaciones().stream()
+						.filter(notification -> "active".equalsIgnoreCase(notification.status()))
+						.max(java.util.Comparator.comparing(NotificationDTO::timestampCreacion))
+						.orElse(null))
+				.filter(Objects::nonNull)
+				.flatMap((NotificationDTO notification) -> {
+					return memoryStoreConversationService.getMessages(session.sessionId()).collectList()
+							.map(conversationContextMapper::toTextFromMessages)
+							.defaultIfEmpty("")
+							.flatMap(conversationHistory -> {
+								String notificationText = notificationContextMapper.toText(notification);
+								String classification = messageEntryFilter.classifyMessage(userMessageText, notificationText,
+										conversationHistory);
+								if (MessageEntryFilter.CATEGORY_NOTIFICATION.equals(classification)) {
+									return startNotificationConversation(context, request, notification);
+								} else {
+									return proceedWithConversation(context, request, session);
+								}
+							});
+				})
+				.switchIfEmpty(proceedWithConversation(context, request, session));
+	}
+
+	private Mono<DetectIntentResponseDTO> proceedWithConversation(ConversationContext context,
+			DetectIntentRequestDTO request, ConversationSessionDTO session) {
+		Instant now = Instant.now();
+		if (Duration.between(session.lastModified(), now).toMinutes()  <  SESSION_RESET_THRESHOLD_MINUTES) {
+			logger.info("Recent Session Found: Session {} is within the 30-minute threshold. Proceeding to Dialogflow.",
+					session.sessionId());
+			return processDialogflowRequest(session, request, context.userId(), context.userMessageText(),
+					context.primaryPhoneNumber(), false);
+		} else {
+
+			
+			logger.info(
+					"Old Session Found: Session {} is older than the 30-minute threshold.",
+					session.sessionId());
+					// Generar un nuevo ID de sesión
+            String newSessionId = SessionIdGenerator.generateStandardSessionId();
+            logger.info("Creating new session {} from old session {} due to timeout.", newSessionId, session.sessionId());
+
+			// Crear un nuevo DTO de sesión basado en la antigua, pero con el nuevo ID
+            ConversationSessionDTO newSession = ConversationSessionDTO.create(newSessionId, context.userId(), context.primaryPhoneNumber());
+			
+			return memoryStoreConversationService.getMessages(session.sessionId())
+                .collectList()
+                // Adding use the TextWithLimits to truncate according to business rule 30 days/60 messages
+                .map(messages -> conversationContextMapper.toTextWithLimits(session, messages))
+                .defaultIfEmpty("")
+                .flatMap(conversationHistory -> {
+                    // Inject historial (max 60 msgs / 30 días / 50KB)
+                    DetectIntentRequestDTO newRequest = request.withParameter(CONV_HISTORY_PARAM, conversationHistory);
+                    return processDialogflowRequest(newSession, newRequest, context.userId(), context.userMessageText(),
+                            context.primaryPhoneNumber(), false);
+                });
+		}
+	}
+
+	private Mono<DetectIntentResponseDTO> fullLookupAndProcess(ConversationSessionDTO oldSession,
+			DetectIntentRequestDTO request, String userId, String userMessageText, String userPhoneNumber) {
+		return firestoreConversationService.getSessionByTelefono(userPhoneNumber)
+				.flatMap(session -> firestoreConversationService.getMessages(session.sessionId()).collectList()
+						.map(conversationContextMapper::toTextFromMessages)
+						.defaultIfEmpty("")
+						.flatMap(conversationHistory -> {
+							String newSessionId = SessionIdGenerator.generateStandardSessionId();
+							logger.info("Creating new session {} after full lookup.", newSessionId);
+							ConversationSessionDTO newSession = ConversationSessionDTO.create(newSessionId, userId,
+									userPhoneNumber);
+							DetectIntentRequestDTO newRequest = request.withParameter(CONV_HISTORY_PARAM, conversationHistory);
+							return processDialogflowRequest(newSession, newRequest, userId, userMessageText, userPhoneNumber,
+									true);
+						}))
+				.switchIfEmpty(Mono.defer(() -> {
+					String newSessionId = SessionIdGenerator.generateStandardSessionId();
+					logger.info("Creating new session {} after full lookup.", newSessionId);
+					ConversationSessionDTO newSession = ConversationSessionDTO.create(newSessionId, userId,
+							userPhoneNumber);
+					return processDialogflowRequest(newSession, request, userId, userMessageText, userPhoneNumber,
+							true);
+				}));
+	}
+
+	private Mono<DetectIntentResponseDTO> processDialogflowRequest(ConversationSessionDTO session,
+			DetectIntentRequestDTO request, String userId, String userMessageText, String userPhoneNumber,
+			boolean newSession) {
+		final String finalSessionId = session.sessionId();
+
+		ConversationEntryDTO userEntry = ConversationEntryDTO.forUser(userMessageText);
+
+		return this.persistConversationTurn(session, conversationEntryMapper.toConversationMessageDTO(userEntry))
+				.doOnSuccess(v -> logger.debug(
+						"User entry successfully persisted for session {}. Proceeding to Dialogflow...",
+						finalSessionId))
+				.doOnError(e -> logger.error("Error during user entry persistence for session {}: {}", finalSessionId,
+						e.getMessage(), e))
+				.then(Mono.defer(() -> dialogflowServiceClient.detectIntent(finalSessionId, request)
+						.flatMap(response -> {
+							logger.debug(
+									"RTest eceived Dialogflow CX response for session {}. Initiating agent response persistence.",
+									finalSessionId);
+							ConversationEntryDTO agentEntry = ConversationEntryDTO.forAgent(response.queryResult());
+							return persistConversationTurn(session, conversationEntryMapper.toConversationMessageDTO(agentEntry))
+									.thenReturn(response);
+						})
+						.doOnError(
+								error -> logger.error("Overall error during conversation management for session {}: {}",
+										finalSessionId, error.getMessage(), error))));
+	}
+
+	public Mono<DetectIntentResponseDTO> startNotificationConversation(ConversationContext context,
+            DetectIntentRequestDTO request, NotificationDTO notification) {
+        final String userId = context.userId();
+        final String userMessageText = context.userMessageText();
+        final String userPhoneNumber = context.primaryPhoneNumber();
+		
+        return memoryStoreConversationService.getSessionByTelefono(userPhoneNumber)
+                .switchIfEmpty(Mono.defer(() -> {
+                    String newSessionId = SessionIdGenerator.generateStandardSessionId();
+                    logger.warn("No existing conversation session found for notification reply on phone {}. This is unexpected. Creating new session: {}",
+                            userPhoneNumber, newSessionId);
+                    return Mono.just(ConversationSessionDTO.create(newSessionId, userId, userPhoneNumber));
+                }))
+                .flatMap(session -> {
+                    final String sessionId = session.sessionId();
+                    return memoryStoreConversationService.getMessages(sessionId).collectList()
+						.map(conversationContextMapper::toTextFromMessages)
+						.defaultIfEmpty("")
+						.flatMap(conversationHistory -> {
+							String notificationText = notificationContextMapper.toText(notification);
+
+							Map<String, Object> filteredParams = notification.parametros().entrySet().stream()
+									.filter(entry -> entry.getKey().startsWith("notification_po_"))
+									.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
+
+							String resolvedContext = notificationContextResolver.resolveContext(userMessageText,
+									notificationText, conversationHistory, filteredParams.toString(), userId, sessionId,
+									userPhoneNumber);
+							if (!resolvedContext.trim().toUpperCase().contains(NotificationContextResolver.CATEGORY_DIALOGFLOW)) {
+								String uuid = UUID.randomUUID().toString();
+								llmResponseTunerService.setValue(uuid, resolvedContext).subscribe();
+
+								ConversationEntryDTO userEntry = ConversationEntryDTO.forUser(userMessageText,
+										notification.parametros());
+								ConversationEntryDTO llmEntry = ConversationEntryDTO.forLlmConversation(resolvedContext,
+										notification.parametros());
+
+								return persistConversationTurn(session, conversationEntryMapper.toConversationMessageDTO(userEntry))
+										.then(persistConversationTurn(session, conversationEntryMapper.toConversationMessageDTO(llmEntry)))
+										.then(Mono.defer(() -> {
+											EventInputDTO eventInput = new EventInputDTO("LLM_RESPONSE_PROCESSED");
+											QueryInputDTO queryInput = new QueryInputDTO(null, eventInput,
+													request.queryInput().languageCode());
+											DetectIntentRequestDTO newRequest = new DetectIntentRequestDTO(queryInput,
+													request.queryParams())
+													.withParameter("llm_reponse_uuid", uuid);
+											
+											return dialogflowServiceClient.detectIntent(sessionId, newRequest)
+													.flatMap(response -> {
+														ConversationEntryDTO agentEntry = ConversationEntryDTO
+																.forAgent(response.queryResult());
+														return persistConversationTurn(session, conversationEntryMapper.toConversationMessageDTO(agentEntry))
+																.thenReturn(response);
+													});
+										}));
+							} else {                 
+								ConversationEntryDTO userEntry = ConversationEntryDTO.forUser(userMessageText,
+										notification.parametros());
+
+								DetectIntentRequestDTO finalRequest;
+								Instant now = Instant.now();
+								if (Duration.between(session.lastModified(), now).toMinutes() < SESSION_RESET_THRESHOLD_MINUTES) {
+									finalRequest = request.withParameters(notification.parametros());
+								} else {
+									finalRequest = request.withParameter(CONV_HISTORY_PARAM, conversationHistory)
+											.withParameters(notification.parametros());
+								}
+								return persistConversationTurn(session, conversationEntryMapper.toConversationMessageDTO(userEntry))
+										.then(dialogflowServiceClient.detectIntent(sessionId, finalRequest)
+												.flatMap(response -> {
+													ConversationEntryDTO agentEntry = ConversationEntryDTO
+															.forAgent(response.queryResult());
+													return persistConversationTurn(session, conversationEntryMapper.toConversationMessageDTO(agentEntry))
+															.thenReturn(response);
+												}));
+							}
+						});
+                });
+    }
+
+	private Mono<Void> persistConversationTurn(ConversationSessionDTO session, ConversationMessageDTO message) {
+		logger.debug("Starting Write-Back persistence for session {}. Type: {}. Writing to Redis first.", session.sessionId(),
+				message.type().name());
+		ConversationSessionDTO updatedSession = session.withLastMessage(message.text());
+		return memoryStoreConversationService.saveSession(updatedSession)
+				.then(memoryStoreConversationService.saveMessage(session.sessionId(), message))
+				.doOnSuccess(v -> logger.info(
+						"Entry saved to Redis for session {}. Type: {}. Kicking off async Firestore write-back.",
+						session.sessionId(), message.type().name()))
+				.then(firestoreConversationService.saveSession(updatedSession)
+						.then(firestoreConversationService.saveMessage(session.sessionId(), message))
+						.doOnSuccess(fsVoid -> logger.debug(
+								"Asynchronously (Write-Back): Entry successfully saved to Firestore for session {}. Type: {}.",
+								session.sessionId(), message.type().name()))
+						.doOnError(fsError -> logger.error(
+								"Asynchronously (Write-Back): Failed to save entry to Firestore for session {}. Type: {}: {}",
+								session.sessionId(), message.type().name(), fsError.getMessage(), fsError)))
+				.doOnError(e -> logger.error("Error during primary Redis write for session {}. Type: {}: {}", session.sessionId(),
+						message.type().name(), e.getMessage(), e));
+	}
+}

src.bak/main/java/com/example/service/conversation/DataLossPrevention.java

@@ -0,0 +1,12 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.service.conversation;
+
+import reactor.core.publisher.Mono;
+
+public interface DataLossPrevention {
+	Mono<String> getObfuscatedString(String textToInspect, String templateId);
+}

src.bak/main/java/com/example/service/conversation/DataLossPreventionImpl.java

@@ -0,0 +1,111 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.service.conversation;
+
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutureCallback;
+import com.google.api.core.ApiFutures;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import com.google.cloud.dlp.v2.DlpServiceClient;
+import com.google.privacy.dlp.v2.ByteContentItem;
+import com.google.privacy.dlp.v2.ContentItem;
+import com.google.privacy.dlp.v2.InspectConfig;
+import com.google.privacy.dlp.v2.InspectContentRequest;
+import com.google.privacy.dlp.v2.InspectContentResponse;
+import com.google.privacy.dlp.v2.Likelihood;
+import com.google.privacy.dlp.v2.LocationName;
+import com.google.protobuf.ByteString;
+import com.example.util.TextObfuscator;
+
+import reactor.core.publisher.Mono;
+
+/**
+Implements a data loss prevention service by integrating with the
+Google Cloud Data Loss Prevention (DLP) API. This service is responsible for
+scanning a given text input to identify and obfuscate sensitive information based on
+a specified DLP template. If the DLP API detects sensitive findings, the
+original text is obfuscated to protect user data; otherwise, the original
+text is returned. 
+*/
+@Service
+public class DataLossPreventionImpl implements DataLossPrevention {
+
+	private static final Logger logger = LoggerFactory.getLogger(DataLossPreventionImpl.class);
+
+	private final String projectId;
+	private final String location;
+	private final DlpServiceClient dlpServiceClient;
+
+	public DataLossPreventionImpl(
+			DlpServiceClient dlpServiceClient,
+			@Value("${google.cloud.project}") String projectId,
+			@Value("${google.cloud.location}") String location) {
+		this.dlpServiceClient = dlpServiceClient;
+		this.projectId = projectId;
+		this.location = location;
+	}
+
+	@Override
+	public Mono<String> getObfuscatedString(String text, String templateId) {
+		ByteContentItem byteContentItem = ByteContentItem.newBuilder()
+				.setType(ByteContentItem.BytesType.TEXT_UTF8)
+				.setData(ByteString.copyFromUtf8(text))
+				.build();
+		ContentItem contentItem = ContentItem.newBuilder().setByteItem(byteContentItem).build();
+
+		Likelihood minLikelihood = Likelihood.VERY_UNLIKELY;
+
+		InspectConfig.FindingLimits findingLimits = InspectConfig.FindingLimits.newBuilder().setMaxFindingsPerItem(0)
+				.build();
+
+		InspectConfig inspectConfig = InspectConfig.newBuilder()
+				.setMinLikelihood(minLikelihood)
+				.setLimits(findingLimits)
+				.setIncludeQuote(true)
+				.build();
+
+		String inspectTemplateName = String.format("projects/%s/locations/%s/inspectTemplates/%s", projectId, location,
+				templateId);
+		InspectContentRequest request = InspectContentRequest.newBuilder()
+				.setParent(LocationName.of(projectId, location).toString())
+				.setInspectTemplateName(inspectTemplateName)
+				.setInspectConfig(inspectConfig)
+				.setItem(contentItem)
+				.build();
+
+		ApiFuture<InspectContentResponse> futureResponse = dlpServiceClient.inspectContentCallable()
+				.futureCall(request);
+
+		return Mono.<InspectContentResponse>create(
+				sink -> ApiFutures.addCallback(
+						futureResponse,
+						new ApiFutureCallback<>() {
+							@Override
+							public void onFailure(Throwable t) {
+								sink.error(t);
+							}
+
+							@Override
+							public void onSuccess(InspectContentResponse result) {
+								sink.success(result);
+							}
+						},
+						Runnable::run))
+				.map(response -> {
+					logger.info("DLP {} Findings: {}", templateId, response.getResult().getFindingsCount());
+					return response.getResult().getFindingsCount() > 0
+							? TextObfuscator.obfuscate(response, text)
+							: text;
+				}).onErrorResume(e -> {
+					e.printStackTrace();
+					return Mono.just(text);
+				});
+	}
+}

src.bak/main/java/com/example/service/conversation/FirestoreConversationService.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.conversation;
+
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import com.example.dto.dialogflow.conversation.ConversationSessionDTO;
+import com.example.exception.FirestorePersistenceException;
+import com.example.mapper.conversation.ConversationMessageMapper;
+import com.example.mapper.conversation.FirestoreConversationMapper;
+import com.example.repository.FirestoreBaseRepository;
+import com.google.cloud.firestore.DocumentReference;
+import com.google.cloud.firestore.DocumentSnapshot;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+import reactor.core.scheduler.Schedulers;
+
+import java.util.Objects;
+import java.util.concurrent.ExecutionException;
+
+@Service
+public class FirestoreConversationService {
+
+    private static final Logger logger = LoggerFactory.getLogger(FirestoreConversationService.class);
+    private static final String CONVERSATION_COLLECTION_PATH_FORMAT = "artifacts/%s/conversations";
+    private static final String MESSAGES_SUBCOLLECTION = "mensajes";
+    private final FirestoreBaseRepository firestoreBaseRepository;
+    private final FirestoreConversationMapper firestoreConversationMapper;
+    private final ConversationMessageMapper conversationMessageMapper;
+
+    public FirestoreConversationService(FirestoreBaseRepository firestoreBaseRepository, FirestoreConversationMapper firestoreConversationMapper, ConversationMessageMapper conversationMessageMapper) {
+        this.firestoreBaseRepository = firestoreBaseRepository;
+        this.firestoreConversationMapper = firestoreConversationMapper;
+        this.conversationMessageMapper = conversationMessageMapper;
+    }
+
+    public Mono<Void> saveSession(ConversationSessionDTO session) {
+        return Mono.fromRunnable(() -> {
+            DocumentReference sessionDocRef = getSessionDocumentReference(session.sessionId());
+            try {
+                firestoreBaseRepository.setDocument(sessionDocRef, firestoreConversationMapper.createSessionMap(session));
+            } catch (ExecutionException | InterruptedException e) {
+                handleException(e, session.sessionId());
+            }
+        }).subscribeOn(Schedulers.boundedElastic()).then();
+    }
+
+    public Mono<Void> saveMessage(String sessionId, ConversationMessageDTO message) {
+        return Mono.fromRunnable(() -> {
+            DocumentReference messageDocRef = getSessionDocumentReference(sessionId).collection(MESSAGES_SUBCOLLECTION).document();
+            try {
+                firestoreBaseRepository.setDocument(messageDocRef, conversationMessageMapper.toMap(message));
+            } catch (ExecutionException | InterruptedException e) {
+                handleException(e, sessionId);
+            }
+        }).subscribeOn(Schedulers.boundedElastic()).then();
+    }
+
+    public Flux<ConversationMessageDTO> getMessages(String sessionId) {
+        String messagesPath = getConversationCollectionPath() + "/" + sessionId + "/" + MESSAGES_SUBCOLLECTION;
+        return firestoreBaseRepository.getDocuments(messagesPath)
+                .map(documentSnapshot -> {
+                    if (documentSnapshot != null && documentSnapshot.exists()) {
+                        return conversationMessageMapper.fromMap(documentSnapshot.getData());
+                    }
+                    return null;
+                })
+                .filter(Objects::nonNull);
+    }
+
+    public Mono<ConversationSessionDTO> getConversationSession(String sessionId) {
+        logger.info("Attempting to retrieve conversation session for session {}.", sessionId);
+        return Mono.fromCallable(() -> {
+            DocumentReference sessionDocRef = getSessionDocumentReference(sessionId);
+            try {
+                DocumentSnapshot documentSnapshot = firestoreBaseRepository.getDocumentSnapshot(sessionDocRef);
+                if (documentSnapshot != null && documentSnapshot.exists()) {
+                    ConversationSessionDTO sessionDTO = firestoreConversationMapper.mapFirestoreDocumentToConversationSessionDTO(documentSnapshot);
+                    logger.info("Successfully retrieved and mapped conversation session for session {}.", sessionId);
+                    return sessionDTO;
+                }
+                logger.info("Conversation session not found for session {}.", sessionId);
+                return null;
+            } catch (InterruptedException | ExecutionException e) {
+                handleException(e, sessionId);
+                return null;
+            }
+        }).subscribeOn(Schedulers.boundedElastic());
+    }
+
+    public Mono<ConversationSessionDTO> getSessionByTelefono(String userPhoneNumber) {
+        return firestoreBaseRepository.getDocumentsByField(getConversationCollectionPath(), "telefono", userPhoneNumber)
+                .map(documentSnapshot -> {
+                    if (documentSnapshot != null && documentSnapshot.exists()) {
+                        ConversationSessionDTO sessionDTO = firestoreConversationMapper.mapFirestoreDocumentToConversationSessionDTO(documentSnapshot);
+                        logger.info("Successfully retrieved and mapped conversation session for session {}.", sessionDTO.sessionId());
+                        return sessionDTO;
+                    }
+                    return null;
+                });
+    }
+
+    public Mono<Void> deleteSession(String sessionId) {
+        logger.info("Attempting to delete conversation session for session {}.", sessionId);
+        return Mono.fromRunnable(() -> {
+            DocumentReference sessionDocRef = getSessionDocumentReference(sessionId);
+            try {
+                firestoreBaseRepository.deleteDocumentAndSubcollections(sessionDocRef, MESSAGES_SUBCOLLECTION);
+                logger.info("Successfully deleted conversation session for session {}.", sessionId);
+            } catch (InterruptedException | ExecutionException e) {
+                handleException(e, sessionId);
+            }
+        }).subscribeOn(Schedulers.boundedElastic()).then();
+    }
+
+    private String getConversationCollectionPath() {
+        return String.format(CONVERSATION_COLLECTION_PATH_FORMAT, firestoreBaseRepository.getAppId());
+    }
+
+    private DocumentReference getSessionDocumentReference(String sessionId) {
+        String collectionPath = getConversationCollectionPath();
+        return firestoreBaseRepository.getDocumentReference(collectionPath, sessionId);
+    }
+
+    private void handleException(Exception e, String sessionId) {
+        if (e instanceof InterruptedException) {
+            Thread.currentThread().interrupt();
+        }
+        logger.error("Error processing Firestore operation for session {}: {}", sessionId, e.getMessage(), e);
+        throw new FirestorePersistenceException("Failed to process Firestore operation for session " + sessionId, e);
+    }
+}

src.bak/main/java/com/example/service/conversation/MemoryStoreConversationService.java

@@ -0,0 +1,108 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.conversation;
+
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Range;
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.stereotype.Service;
+import com.example.dto.dialogflow.conversation.ConversationSessionDTO;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+import java.time.Duration;
+
+
+@Service
+public class MemoryStoreConversationService { 
+    private static final Logger logger = LoggerFactory.getLogger(MemoryStoreConversationService.class);
+    private static final String SESSION_KEY_PREFIX = "conversation:session:";
+    private static final String PHONE_TO_SESSION_KEY_PREFIX = "conversation:phone_to_session:";
+    private static final String MESSAGES_KEY_PREFIX = "conversation:messages:";
+    private static final Duration SESSION_TTL = Duration.ofDays(30);
+    private final ReactiveRedisTemplate<String, ConversationSessionDTO> redisTemplate;
+    private final ReactiveRedisTemplate<String, String> stringRedisTemplate;
+    private final ReactiveRedisTemplate<String, ConversationMessageDTO> messageRedisTemplate;
+    private final ConversationHistoryService conversationHistoryService;
+
+
+    @Autowired
+    public MemoryStoreConversationService(
+            ReactiveRedisTemplate<String, ConversationSessionDTO> redisTemplate,
+            ReactiveRedisTemplate<String, String> stringRedisTemplate,
+            ReactiveRedisTemplate<String, ConversationMessageDTO> messageRedisTemplate,
+            ConversationHistoryService conversationHistoryService) {
+        this.redisTemplate = redisTemplate;
+        this.stringRedisTemplate = stringRedisTemplate;
+        this.messageRedisTemplate = messageRedisTemplate;
+        this.conversationHistoryService = conversationHistoryService;
+    }
+
+
+    public Mono<Void> saveMessage(String sessionId, ConversationMessageDTO message) {
+        String messagesKey = MESSAGES_KEY_PREFIX + sessionId;
+        double score = message.timestamp().toEpochMilli();
+        return messageRedisTemplate.opsForZSet().add(messagesKey, message, score)
+                .then(conversationHistoryService.pruneHistory(sessionId));
+    }
+
+    public Mono<Void> saveSession(ConversationSessionDTO session) {
+        String sessionKey = SESSION_KEY_PREFIX + session.sessionId();
+        String phoneToSessionKey = PHONE_TO_SESSION_KEY_PREFIX + session.telefono();
+        return redisTemplate.opsForValue().set(sessionKey, session, SESSION_TTL)
+                .then(stringRedisTemplate.opsForValue().set(phoneToSessionKey, session.sessionId(), SESSION_TTL))
+                .then();
+    }
+
+    public Flux<ConversationMessageDTO> getMessages(String sessionId) {
+        String messagesKey = MESSAGES_KEY_PREFIX + sessionId;
+        return messageRedisTemplate.opsForZSet().range(messagesKey, Range.of(Range.Bound.inclusive(0L), Range.Bound.inclusive(-1L)));
+    }
+
+    public Mono<ConversationSessionDTO> getSessionByTelefono(String telefono) {
+        if (telefono == null || telefono.isBlank()) {
+            return Mono.empty();
+        }
+        String phoneToSessionKey = PHONE_TO_SESSION_KEY_PREFIX + telefono;
+        return stringRedisTemplate.opsForValue().get(phoneToSessionKey)
+                .flatMap(sessionId -> redisTemplate.opsForValue().get(SESSION_KEY_PREFIX + sessionId))
+                .doOnSuccess(session -> {
+                    if (session != null) {
+                        logger.info("Successfully retrieved session by phone number");
+                    } else {
+                        logger.info("No session found in Redis for phone number.");
+                    }
+                })
+                .doOnError(e -> logger.error("Error retrieving session by phone number: {}", e));
+    }
+
+    public Mono<Void> updateSession(ConversationSessionDTO session) {
+        String sessionKey = SESSION_KEY_PREFIX + session.sessionId();
+        logger.info("Attempting to update session {} in Memorystore.", session.sessionId());
+        return redisTemplate.opsForValue().set(sessionKey, session).then();
+    }
+
+    public Mono<Void> deleteSession(String sessionId) {
+        String sessionKey = SESSION_KEY_PREFIX + sessionId;
+        String messagesKey = MESSAGES_KEY_PREFIX + sessionId;
+        logger.info("Deleting session {} from Memorystore.", sessionId);
+
+        return redisTemplate.opsForValue().get(sessionKey)
+                .flatMap(session -> {
+                    if (session != null && session.telefono() != null) {
+                        String phoneToSessionKey = PHONE_TO_SESSION_KEY_PREFIX + session.telefono();
+                        return redisTemplate.opsForValue().delete(sessionKey)
+                                .then(stringRedisTemplate.opsForValue().delete(phoneToSessionKey))
+                                .then(messageRedisTemplate.delete(messagesKey));
+                    } else {
+                        return redisTemplate.opsForValue().delete(sessionKey)
+                                .then(messageRedisTemplate.delete(messagesKey));
+                    }
+                }).then();
+    }
+}

src.bak/main/java/com/example/service/llm/LlmResponseTunerService.java

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.llm;
+
+import reactor.core.publisher.Mono;
+
+public interface LlmResponseTunerService {
+    Mono<String> getValue(String key);
+    Mono<Void> setValue(String key, String value);
+}

src.bak/main/java/com/example/service/llm/LlmResponseTunerServiceImpl.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.llm;
+
+import java.time.Duration;
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+
+@Service
+public class LlmResponseTunerServiceImpl implements LlmResponseTunerService {
+
+    private final ReactiveRedisTemplate<String, String> reactiveStringRedisTemplate;
+    private final String llmPreResponseCollectionName = "llm-pre-response:";
+    private final Duration ttl = Duration.ofHours(1);
+
+    public LlmResponseTunerServiceImpl(ReactiveRedisTemplate<String, String> reactiveStringRedisTemplate) {
+        this.reactiveStringRedisTemplate = reactiveStringRedisTemplate;
+    }
+
+    @Override
+    public Mono<String> getValue(String key) {
+        return reactiveStringRedisTemplate.opsForValue().get(llmPreResponseCollectionName + key);
+    }
+
+    @Override
+    public Mono<Void> setValue(String key, String value) {
+        return reactiveStringRedisTemplate.opsForValue().set(llmPreResponseCollectionName + key, value, ttl).then();
+    }
+}

src.bak/main/java/com/example/service/notification/FirestoreNotificationService.java

@@ -0,0 +1,188 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.notification;
+
+import com.example.dto.dialogflow.notification.NotificationDTO;
+import com.example.exception.FirestorePersistenceException;
+import com.example.mapper.notification.FirestoreNotificationMapper;
+import com.example.repository.FirestoreBaseRepository;
+import com.google.cloud.Timestamp;
+import com.google.cloud.firestore.DocumentReference;
+import com.google.cloud.firestore.FieldValue;
+import java.time.Instant;
+import java.util.Collections;
+import java.util.Map;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.concurrent.ExecutionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+import reactor.core.scheduler.Schedulers;
+
+@Service
+public class FirestoreNotificationService {
+
+    private static final Logger logger = LoggerFactory.getLogger(FirestoreNotificationService.class);
+    private static final String NOTIFICATION_COLLECTION_PATH_FORMAT = "artifacts/%s/notifications";
+    private static final String FIELD_MESSAGES = "notificaciones";
+    private static final String FIELD_LAST_UPDATED = "ultimaActualizacion";
+    private static final String FIELD_PHONE_NUMBER = "telefono";
+    private static final String FIELD_NOTIFICATION_ID = "sessionId";
+
+    private final FirestoreBaseRepository firestoreBaseRepository;
+    private final FirestoreNotificationMapper firestoreNotificationMapper;
+
+    public FirestoreNotificationService(
+            FirestoreBaseRepository firestoreBaseRepository,
+            FirestoreNotificationMapper firestoreNotificationMapper,
+            MemoryStoreNotificationService memoryStoreNotificationService) {
+        this.firestoreBaseRepository = firestoreBaseRepository;
+        this.firestoreNotificationMapper = firestoreNotificationMapper;
+    }
+
+    public Mono<Void> saveOrAppendNotificationEntry(NotificationDTO newEntry) {
+        return Mono.fromRunnable(
+                () -> {
+                    String phoneNumber = newEntry.telefono();
+                    if (phoneNumber == null || phoneNumber.isBlank()) {
+                        throw new IllegalArgumentException(
+                                "Phone number is required to manage notification entries.");
+                    }
+                    // Use the phone number as the document ID for the session.
+                    String notificationSessionId = phoneNumber;
+
+                    // Synchronize on the notification session ID to prevent race conditions when
+                    // creating a new session.
+                    synchronized (notificationSessionId.intern()) {
+                        DocumentReference notificationDocRef = getNotificationDocumentReference(notificationSessionId);
+                        Map<String, Object> entryMap = firestoreNotificationMapper.mapNotificationDTOToMap(newEntry);
+                        try {
+                            // Check if the session document exists.
+                            boolean docExists = firestoreBaseRepository.documentExists(notificationDocRef);
+
+                            if (docExists) {
+                                // If the document exists, append the new entry to the 'notificaciones' array.
+                                Map<String, Object> updates = Map.of(
+                                        FIELD_MESSAGES, FieldValue.arrayUnion(entryMap),
+                                        FIELD_LAST_UPDATED, Timestamp.of(java.util.Date.from(Instant.now())));
+                                firestoreBaseRepository.updateDocument(notificationDocRef, updates);
+                                logger.info(
+                                        "Successfully appended new entry to notification session {} in Firestore.",
+                                        notificationSessionId);
+                            } else {
+                                // If the document does not exist, create a new session document.
+                                Map<String, Object> newSessionData = Map.of(
+                                        FIELD_NOTIFICATION_ID,
+                                        notificationSessionId,
+                                        FIELD_PHONE_NUMBER,
+                                        phoneNumber,
+                                        "fechaCreacion",
+                                        Timestamp.of(java.util.Date.from(Instant.now())),
+                                        FIELD_LAST_UPDATED,
+                                        Timestamp.of(java.util.Date.from(Instant.now())),
+                                        FIELD_MESSAGES,
+                                        Collections.singletonList(entryMap));
+                                firestoreBaseRepository.setDocument(notificationDocRef, newSessionData);
+                                logger.info(
+                                        "Successfully created a new notification session {} in Firestore.",
+                                        notificationSessionId);
+                            }
+                        } catch (ExecutionException e) {
+                            logger.error(
+                                    "Error saving notification to Firestore for phone: {}",
+                                    e.getMessage(),
+                                    e);
+                            throw new FirestorePersistenceException(
+                                    "Failed to save notification to Firestore for phone ", e);
+                        } catch (InterruptedException e) {
+                            Thread.currentThread().interrupt();
+                            logger.error(
+                                    "Thread interrupted while saving notification to Firestore for phone {}: {}",
+                                    phoneNumber,
+                                    e.getMessage(),
+                                    e);
+                            throw new FirestorePersistenceException(
+                                    "Saving notification was interrupted for phone ", e);
+                        }
+                    }
+                })
+                .subscribeOn(Schedulers.boundedElastic())
+                .then();
+    }
+
+    private String getNotificationCollectionPath() {
+        return String.format(NOTIFICATION_COLLECTION_PATH_FORMAT, firestoreBaseRepository.getAppId());
+    }
+
+    private DocumentReference getNotificationDocumentReference(String notificationId) {
+        String collectionPath = getNotificationCollectionPath();
+        return firestoreBaseRepository.getDocumentReference(collectionPath, notificationId);
+    }
+
+    @SuppressWarnings("unchecked")
+    public Mono<Void> updateNotificationStatus(String sessionId, String status) {
+        return Mono.fromRunnable(() -> {
+            DocumentReference notificationDocRef = getNotificationDocumentReference(sessionId);
+            try {
+                Map<String, Object> sessionData = firestoreBaseRepository.getDocument(notificationDocRef, Map.class);
+                if (sessionData != null) {
+                    List<Map<String, Object>> notifications = (List<Map<String, Object>>) sessionData
+                            .get(FIELD_MESSAGES);
+                    if (notifications != null) {
+                        List<Map<String, Object>> updatedNotifications = new ArrayList<>();
+                        for (Map<String, Object> notification : notifications) {
+                            Map<String, Object> updatedNotification = new HashMap<>(notification);
+                            updatedNotification.put("status", status);
+                            updatedNotifications.add(updatedNotification);
+                        }
+                        Map<String, Object> updates = new HashMap<>();
+                        updates.put(FIELD_MESSAGES, updatedNotifications);
+                        updates.put(FIELD_LAST_UPDATED, Timestamp.of(java.util.Date.from(Instant.now())));
+                        firestoreBaseRepository.updateDocument(notificationDocRef, updates);
+                        logger.info("Successfully updated notification status to '{}' for session {} in Firestore.",
+                                status, sessionId);
+                    }
+                } else {
+                    logger.warn("Notification session {} not found in Firestore. Cannot update status.", sessionId);
+                }
+            } catch (ExecutionException e) {
+                logger.error("Error updating notification status in Firestore for session {}: {}", sessionId,
+                        e.getMessage(), e);
+                throw new FirestorePersistenceException(
+                        "Failed to update notification status in Firestore for session " + sessionId, e);
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+                logger.error("Thread interrupted while updating notification status in Firestore for session {}: {}",
+                        sessionId, e.getMessage(), e);
+                throw new FirestorePersistenceException(
+                        "Updating notification status was interrupted for session " + sessionId, e);
+            }
+        })
+                .subscribeOn(Schedulers.boundedElastic())
+                .then();
+    }
+
+    public Mono<Void> deleteNotification(String notificationId) {
+        logger.info("Attempting to delete notification session {} from Firestore.", notificationId);
+        return Mono.fromRunnable(() -> {
+            try {
+                DocumentReference notificationDocRef = getNotificationDocumentReference(notificationId);
+                firestoreBaseRepository.deleteDocument(notificationDocRef);
+                logger.info("Successfully deleted notification session {} from Firestore.", notificationId);
+            } catch (ExecutionException e) {
+                logger.error("Error deleting notification session {} from Firestore: {}", notificationId, e.getMessage(), e);
+                throw new FirestorePersistenceException("Failed to delete notification session " + notificationId, e);
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+                logger.error("Thread interrupted while deleting notification session {} from Firestore: {}", notificationId, e.getMessage(), e);
+                throw new FirestorePersistenceException("Deleting notification session was interrupted for " + notificationId, e);
+            }
+        }).subscribeOn(Schedulers.boundedElastic()).then();
+    }
+}

src.bak/main/java/com/example/service/notification/MemoryStoreNotificationService.java

@@ -0,0 +1,120 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.notification;
+
+import com.example.dto.dialogflow.notification.NotificationDTO;
+import com.example.dto.dialogflow.notification.NotificationSessionDTO;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.time.Instant;
+
+@Service
+public class MemoryStoreNotificationService {
+
+    private static final Logger logger = LoggerFactory.getLogger(MemoryStoreNotificationService.class);
+    private final ReactiveRedisTemplate<String, NotificationSessionDTO> notificationRedisTemplate;
+    private final ReactiveRedisTemplate<String, String> stringRedisTemplate;
+    private static final String NOTIFICATION_KEY_PREFIX = "notification:";
+    private static final String PHONE_TO_NOTIFICATION_SESSION_KEY_PREFIX = "notification:phone_to_notification:";
+    private final Duration notificationTtl = Duration.ofDays(30);
+
+    public MemoryStoreNotificationService(
+            ReactiveRedisTemplate<String, NotificationSessionDTO> notificationRedisTemplate,
+            ReactiveRedisTemplate<String, String> stringRedisTemplate,
+            ObjectMapper objectMapper) {
+        this.notificationRedisTemplate = notificationRedisTemplate;
+        this.stringRedisTemplate = stringRedisTemplate;
+    }
+
+    public Mono<Void> saveOrAppendNotificationEntry(NotificationDTO newEntry) {
+        String phoneNumber = newEntry.telefono();
+        if (phoneNumber == null || phoneNumber.isBlank()) {
+            return Mono.error(new IllegalArgumentException("Phone number is required to manage notification entries."));
+        }
+        //noote: Use the phone number as the session ID for notifications
+        String notificationSessionId = phoneNumber;
+
+        return getCachedNotificationSession(notificationSessionId)
+            .flatMap(existingSession -> {
+                // Session exists, append the new entry
+                List<NotificationDTO> updatedEntries = new ArrayList<>(existingSession.notificaciones());
+                updatedEntries.add(newEntry);
+                NotificationSessionDTO updatedSession = new NotificationSessionDTO(
+                    notificationSessionId,
+                    phoneNumber,
+                    existingSession.fechaCreacion(),
+                    Instant.now(),
+                    updatedEntries
+                );
+                return Mono.just(updatedSession);
+            })
+            .switchIfEmpty(Mono.defer(() -> {
+                // No session found, create a new one
+                NotificationSessionDTO newSession = new NotificationSessionDTO(
+                    notificationSessionId,
+                    phoneNumber,
+                    Instant.now(),
+                    Instant.now(),
+                    Collections.singletonList(newEntry)
+                );
+                return Mono.just(newSession);
+            }))
+            .flatMap(this::cacheNotificationSession)
+            .then();
+    }
+    
+    private Mono<Boolean> cacheNotificationSession(NotificationSessionDTO session) {
+        String key = NOTIFICATION_KEY_PREFIX + session.sessionId();
+        String phoneToSessionKey = PHONE_TO_NOTIFICATION_SESSION_KEY_PREFIX + session.telefono();
+
+        return notificationRedisTemplate.opsForValue().set(key, session, notificationTtl)
+            .then(stringRedisTemplate.opsForValue().set(phoneToSessionKey, session.sessionId(), notificationTtl));
+    }
+
+    public Mono<NotificationSessionDTO> getCachedNotificationSession(String sessionId) {
+        String key = NOTIFICATION_KEY_PREFIX + sessionId;
+        return notificationRedisTemplate.opsForValue().get(key)
+                .doOnSuccess(notification -> {
+                    if (notification != null) {
+                        logger.info("Notification session with ID {} retrieved from MemoryStore.", sessionId);
+                    } else {
+                        logger.debug("Notification session with ID {} not found in MemoryStore.", sessionId);
+                    }
+                })
+                .doOnError(e -> logger.error("Error retrieving notification session with ID {} from MemoryStore: {}", sessionId, e.getMessage(), e));
+    }
+
+    public Mono<String> getNotificationIdForPhone(String phone) {
+        String key = PHONE_TO_NOTIFICATION_SESSION_KEY_PREFIX + phone;
+        return stringRedisTemplate.opsForValue().get(key)
+                .doOnSuccess(sessionId -> {
+                    if (sessionId != null) {
+                        logger.info("Session ID {} found for phone.", sessionId);
+                    } else {
+                        logger.debug("Session ID not found for phone.");
+                    }
+                })
+                .doOnError(e -> logger.error("Error retrieving session ID for phone from MemoryStore: {}",
+                        e.getMessage(), e));
+    }
+
+    public Mono<Void> deleteNotificationSession(String phoneNumber) {
+        String notificationKey = NOTIFICATION_KEY_PREFIX + phoneNumber;
+        String phoneToNotificationKey = PHONE_TO_NOTIFICATION_SESSION_KEY_PREFIX + phoneNumber;
+        logger.info("Deleting notification session for phone number {}.", phoneNumber);
+        return notificationRedisTemplate.opsForValue().delete(notificationKey)
+                .then(stringRedisTemplate.opsForValue().delete(phoneToNotificationKey))
+                .then();
+    }
+}

src.bak/main/java/com/example/service/notification/NotificationManagerService.java

@@ -0,0 +1,184 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.notification;
+
+import com.example.dto.dialogflow.notification.ExternalNotRequestDTO;
+import com.example.dto.dialogflow.base.DetectIntentRequestDTO;
+import com.example.dto.dialogflow.base.DetectIntentResponseDTO;
+import com.example.dto.dialogflow.conversation.ConversationEntryDTO;
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import com.example.dto.dialogflow.conversation.ConversationSessionDTO;
+import com.example.dto.dialogflow.notification.NotificationDTO;
+import com.example.mapper.conversation.ConversationEntryMapper;
+import com.example.mapper.notification.ExternalNotRequestMapper;
+import com.example.service.base.DialogflowClientService;
+import com.example.service.conversation.DataLossPrevention;
+import com.example.service.conversation.FirestoreConversationService;
+import com.example.service.conversation.MemoryStoreConversationService;
+import com.example.util.SessionIdGenerator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+import java.time.Instant;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+@Service
+public class NotificationManagerService {
+
+    private static final Logger logger = LoggerFactory.getLogger(NotificationManagerService.class);
+    private static final String eventName = "notificacion";
+    private static final String PREFIX_PO_PARAM = "notification_po_";
+
+    private final DialogflowClientService dialogflowClientService;
+    private final FirestoreNotificationService firestoreNotificationService;
+    private final MemoryStoreNotificationService memoryStoreNotificationService;
+    private final ExternalNotRequestMapper externalNotRequestMapper;
+    private final MemoryStoreConversationService memoryStoreConversationService;
+    private final FirestoreConversationService firestoreConversationService;
+    private final DataLossPrevention dataLossPrevention;
+    private final String dlpTemplateCompleteFlow;
+    private final ConversationEntryMapper conversationEntryMapper;
+
+    @Value("${dialogflow.default-language-code:es}")
+    private String defaultLanguageCode;
+
+    public NotificationManagerService(
+            DialogflowClientService dialogflowClientService,
+            FirestoreNotificationService firestoreNotificationService,
+            MemoryStoreNotificationService memoryStoreNotificationService,
+            MemoryStoreConversationService memoryStoreConversationService,
+            FirestoreConversationService firestoreConversationService,
+            
+            ExternalNotRequestMapper externalNotRequestMapper,
+            DataLossPrevention dataLossPrevention,
+            ConversationEntryMapper conversationEntryMapper,
+            @Value("${google.cloud.dlp.dlpTemplateCompleteFlow}") String dlpTemplateCompleteFlow) {
+        
+        this.dialogflowClientService = dialogflowClientService;
+        this.firestoreNotificationService = firestoreNotificationService;
+        this.memoryStoreNotificationService = memoryStoreNotificationService;
+        this.externalNotRequestMapper = externalNotRequestMapper;
+        this.dataLossPrevention = dataLossPrevention;
+        this.dlpTemplateCompleteFlow = dlpTemplateCompleteFlow;
+        this.memoryStoreConversationService = memoryStoreConversationService;
+        this.firestoreConversationService = firestoreConversationService;
+        this.conversationEntryMapper = conversationEntryMapper;
+    }
+
+    public Mono<DetectIntentResponseDTO> processNotification(ExternalNotRequestDTO externalRequest) {
+        Objects.requireNonNull(externalRequest, "ExternalNotRequestDTO cannot be null.");
+
+        String telefono = externalRequest.phoneNumber();
+        if (telefono == null || telefono.isBlank()) {
+            logger.warn("No phone number provided in ExternalNotRequestDTO. Cannot process notification.");
+            return Mono.error(new IllegalArgumentException("Phone number is required."));
+        }
+                
+        return dataLossPrevention.getObfuscatedString(externalRequest.text(), dlpTemplateCompleteFlow)
+                .flatMap(obfuscatedMessage -> {
+                    ExternalNotRequestDTO obfuscatedRequest = new ExternalNotRequestDTO(
+                            obfuscatedMessage,
+                            externalRequest.phoneNumber(),
+                            externalRequest.hiddenParameters()
+                    );
+
+        String newNotificationId = SessionIdGenerator.generateStandardSessionId();
+        Map<String, Object> parameters = new HashMap<>();
+        if (obfuscatedRequest.hiddenParameters() != null) {
+            obfuscatedRequest.hiddenParameters().forEach((key, value) -> parameters.put(PREFIX_PO_PARAM + key, value));
+        }
+
+        NotificationDTO newNotificationEntry = new NotificationDTO(newNotificationId, telefono, Instant.now(),
+                obfuscatedRequest.text(), eventName, defaultLanguageCode, parameters, "active");
+        Mono<Void> persistenceMono = memoryStoreNotificationService.saveOrAppendNotificationEntry(newNotificationEntry)
+                .doOnSuccess(v -> {
+                    logger.info("Notification for phone {} cached. Kicking off async Firestore write-back.", telefono);
+                    firestoreNotificationService.saveOrAppendNotificationEntry(newNotificationEntry)
+                            .subscribe(
+                                    ignored -> logger.debug(
+                                            "Background: Notification entry persistence initiated for phone {} in Firestore.", telefono),
+                                    e -> logger.error(
+                                            "Background: Error during notification entry persistence for phone {} in Firestore: {}",
+                                            telefono, e.getMessage(), e));
+                });
+
+        Mono<ConversationSessionDTO> sessionMono = memoryStoreConversationService.getSessionByTelefono(telefono)
+                .doOnNext(session -> logger.info("Found existing conversation session {} for phone number {}",
+                        session.sessionId(), telefono))
+                .flatMap(session -> {
+                    Map<String, Object> prefixedParameters = new HashMap<>();
+                    if (obfuscatedRequest.hiddenParameters() != null) {
+                        obfuscatedRequest.hiddenParameters()
+                                .forEach((key, value) -> prefixedParameters.put(PREFIX_PO_PARAM + key, value));
+                    }
+                    ConversationEntryDTO systemEntry = ConversationEntryDTO.forSystem(obfuscatedRequest.text(),
+                            prefixedParameters);
+                    return persistConversationTurn(session, systemEntry)
+                            .thenReturn(session);
+                })
+                .switchIfEmpty(Mono.defer(() -> {
+                    String newSessionId = SessionIdGenerator.generateStandardSessionId();
+                    logger.info("No existing conversation session found for phone number {}. Creating new session: {}",
+                            telefono, newSessionId);
+                    String userId = "user_by_phone_" + telefono;
+                    Map<String, Object> prefixedParameters = new HashMap<>();
+                    if (obfuscatedRequest.hiddenParameters() != null) {
+                        obfuscatedRequest.hiddenParameters()
+                                .forEach((key, value) -> prefixedParameters.put(PREFIX_PO_PARAM + key, value));
+                    }
+                    ConversationEntryDTO systemEntry = ConversationEntryDTO.forSystem(obfuscatedRequest.text(),
+                            prefixedParameters);
+                    ConversationSessionDTO newSession = ConversationSessionDTO.create(newSessionId, userId, telefono);
+                    return persistConversationTurn(newSession, systemEntry)
+                            .then(Mono.just(newSession));
+                }));
+
+        return persistenceMono.then(sessionMono)
+                .flatMap(session -> {
+                    final String sessionId = session.sessionId();
+                    logger.info("Sending notification text to Dialogflow using conversation session: {}", sessionId);
+
+                    DetectIntentRequestDTO detectIntentRequest = externalNotRequestMapper.map(obfuscatedRequest);
+
+                    return dialogflowClientService.detectIntent(sessionId, detectIntentRequest);
+                })
+                .doOnSuccess(response -> logger
+                        .info("Finished processing notification. Dialogflow response received for phone {}.", telefono))
+                .doOnError(e -> logger.error("Overall error in NotificationManagerService: {}", e.getMessage(), e));
+                });
+    }
+
+    private Mono<Void> persistConversationTurn(ConversationSessionDTO session, ConversationEntryDTO entry) {
+        logger.debug("Starting Write-Back persistence for session {}. Type: {}. Writing to Redis first.", session.sessionId(),
+                entry.type().name());
+        ConversationMessageDTO message = conversationEntryMapper.toConversationMessageDTO(entry);
+        ConversationSessionDTO updatedSession = session.withLastMessage(message.text());
+
+        return memoryStoreConversationService.saveSession(updatedSession)
+                .then(memoryStoreConversationService.saveMessage(session.sessionId(), message))
+                .doOnSuccess(v -> {
+                    logger.info(
+                            "Entry saved to Redis for session {}. Type: {}. Kicking off async Firestore write-back.",
+                            session.sessionId(), entry.type().name());
+                    
+                    firestoreConversationService.saveSession(updatedSession)
+                            .then(firestoreConversationService.saveMessage(session.sessionId(), message))
+                            .subscribe(
+                                    fsVoid -> logger.debug(
+                                            "Asynchronously (Write-Back): Entry successfully saved to Firestore for session {}. Type: {}.",
+                                            session.sessionId(), entry.type().name()),
+                                    fsError -> logger.error(
+                                            "Asynchronously (Write-Back): Failed to save entry to Firestore for session {}. Type: {}: {}",
+                                            session.sessionId(), entry.type().name(), fsError.getMessage(), fsError));
+                })
+                .doOnError(e -> logger.error("Error during primary Redis write for session {}. Type: {}: {}", session.sessionId(),
+                        entry.type().name(), e.getMessage(), e));
+    }
+}

src.bak/main/java/com/example/service/quickreplies/MemoryStoreQRService.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.quickreplies;
+
+import com.example.dto.dialogflow.conversation.ConversationEntryDTO;
+import com.example.dto.dialogflow.conversation.ConversationMessageDTO;
+import com.example.dto.dialogflow.conversation.ConversationSessionDTO;
+import com.example.mapper.conversation.ConversationEntryMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+
+import java.time.Duration;
+
+@Service
+public class MemoryStoreQRService {
+    private static final Logger logger = LoggerFactory.getLogger(MemoryStoreQRService.class);
+    private static final String SESSION_KEY_PREFIX = "qr:session:";
+    private static final String PHONE_TO_SESSION_KEY_PREFIX = "qr:phone_to_session:";
+    private static final String MESSAGES_KEY_PREFIX = "qr:messages:";
+    private static final Duration SESSION_TTL = Duration.ofHours(24);
+    private final ReactiveRedisTemplate<String, ConversationSessionDTO> redisTemplate;
+    private final ReactiveRedisTemplate<String, String> stringRedisTemplate;
+    private final ReactiveRedisTemplate<String, ConversationMessageDTO> messageRedisTemplate;
+    private final ConversationEntryMapper conversationEntryMapper;
+
+    @Autowired
+    public MemoryStoreQRService(
+            ReactiveRedisTemplate<String, ConversationSessionDTO> redisTemplate,
+            ReactiveRedisTemplate<String, String> stringRedisTemplate,
+            ReactiveRedisTemplate<String, ConversationMessageDTO> messageRedisTemplate,
+            ConversationEntryMapper conversationEntryMapper) {
+        this.redisTemplate = redisTemplate;
+        this.stringRedisTemplate = stringRedisTemplate;
+        this.messageRedisTemplate = messageRedisTemplate;
+        this.conversationEntryMapper = conversationEntryMapper;
+    }
+
+    public Mono<Void> saveEntry(String userId, String sessionId, ConversationEntryDTO newEntry,
+            String userPhoneNumber) {
+        String sessionKey = SESSION_KEY_PREFIX + sessionId;
+        String phoneToSessionKey = PHONE_TO_SESSION_KEY_PREFIX + userPhoneNumber;
+        String messagesKey = MESSAGES_KEY_PREFIX + sessionId;
+
+        logger.info("Attempting to save entry to Redis for quick reply session {}. Entity: {}", sessionId,
+                newEntry.entity().name());
+
+        return redisTemplate.opsForValue().get(sessionKey)
+                .defaultIfEmpty(ConversationSessionDTO.create(sessionId, userId, userPhoneNumber))
+                .flatMap(session -> {
+                    ConversationSessionDTO sessionWithUpdatedTelefono = session.withTelefono(userPhoneNumber);
+                    ConversationSessionDTO updatedSession = sessionWithUpdatedTelefono.withLastMessage(newEntry.text());
+                    ConversationMessageDTO message = conversationEntryMapper.toConversationMessageDTO(newEntry);
+
+                    logger.info("Attempting to set updated quick reply session {} with new entry entity {} in Redis.",
+                            sessionId, newEntry.entity().name());
+
+                    return redisTemplate.opsForValue().set(sessionKey, updatedSession, SESSION_TTL)
+                            .then(stringRedisTemplate.opsForValue().set(phoneToSessionKey, sessionId, SESSION_TTL))
+                            .then(messageRedisTemplate.opsForList().rightPush(messagesKey, message))
+                            .then();
+                })
+                .doOnSuccess(success -> {
+                    logger.info(
+                            "Successfully saved updated quick reply session and phone mapping to Redis for session {}. Entity Type: {}",
+                            sessionId, newEntry.entity().name());
+                })
+                .doOnError(e -> logger.error("Error appending entry to Redis for quick reply session {}: {}", sessionId,
+                        e.getMessage(), e));
+    }
+
+    public Mono<ConversationSessionDTO> getSessionByTelefono(String telefono) {
+        if (telefono == null || telefono.isBlank()) {
+            return Mono.empty();
+        }
+        String phoneToSessionKey = PHONE_TO_SESSION_KEY_PREFIX + telefono;
+        return stringRedisTemplate.opsForValue().get(phoneToSessionKey)
+                .flatMap(sessionId -> {
+                    logger.debug("Found quick reply session ID {} for phone number {}. Retrieving session data.",
+                            sessionId, telefono);
+                    return redisTemplate.opsForValue().get(SESSION_KEY_PREFIX + sessionId);
+                })
+                .doOnSuccess(session -> {
+                    if (session != null) {
+                        logger.info("Successfully retrieved quick reply session {}",
+                                session.sessionId());
+                    } else {
+                        logger.info("No quick reply session found in Redis for phone number");
+                    }
+                })
+                .doOnError(e -> logger.error("Error retrieving quick reply session by phone numbe: {}",e.getMessage(), e));
+    }
+}

src.bak/main/java/com/example/service/quickreplies/QuickRepliesManagerService.java

@@ -0,0 +1,182 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.quickreplies;
+
+import com.example.dto.dialogflow.base.DetectIntentResponseDTO;
+import com.example.dto.dialogflow.conversation.*;
+import com.example.dto.quickreplies.QuickReplyScreenRequestDTO;
+import com.example.dto.quickreplies.QuestionDTO;
+import com.example.dto.quickreplies.QuickReplyDTO;
+import com.example.mapper.conversation.ConversationEntryMapper;
+import com.example.service.conversation.FirestoreConversationService;
+import com.example.service.conversation.MemoryStoreConversationService;
+import com.example.util.SessionIdGenerator;
+import java.time.Instant;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.IntStream;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+
+import com.example.service.conversation.ConversationManagerService;
+import org.springframework.context.annotation.Lazy;
+import reactor.core.publisher.Mono;
+
+@Service
+public class QuickRepliesManagerService {
+	private static final Logger logger = LoggerFactory.getLogger(QuickRepliesManagerService.class);
+	private final MemoryStoreConversationService memoryStoreConversationService;
+	private final FirestoreConversationService firestoreConversationService;
+	private final QuickReplyContentService quickReplyContentService;
+	private final ConversationManagerService conversationManagerService;
+	private final ConversationEntryMapper conversationEntryMapper;
+
+	public QuickRepliesManagerService(
+			@Lazy ConversationManagerService conversationManagerService,
+			MemoryStoreConversationService memoryStoreConversationService,
+			FirestoreConversationService firestoreConversationService,
+			QuickReplyContentService quickReplyContentService,
+			ConversationEntryMapper conversationEntryMapper) {
+		this.conversationManagerService = conversationManagerService;
+		this.memoryStoreConversationService = memoryStoreConversationService;
+		this.firestoreConversationService = firestoreConversationService;
+		this.quickReplyContentService = quickReplyContentService;
+		this.conversationEntryMapper = conversationEntryMapper;
+	}
+
+	public Mono<DetectIntentResponseDTO> startQuickReplySession(QuickReplyScreenRequestDTO externalRequest) {
+		String userPhoneNumber = externalRequest.user().telefono();
+		if (userPhoneNumber == null || userPhoneNumber.isBlank()) {
+			logger.warn("No phone number provided in request. Cannot manage conversation session without it.");
+			return Mono
+					.error(new IllegalArgumentException("Phone number is required to manage conversation sessions."));
+		}
+		return memoryStoreConversationService.getSessionByTelefono(userPhoneNumber)
+				.flatMap(session -> Mono.just(session.sessionId()))
+				.switchIfEmpty(Mono.fromCallable(SessionIdGenerator::generateStandardSessionId))
+				.flatMap(sessionId -> {
+					String userId = "user_by_phone_" + userPhoneNumber.replaceAll("[^0-9]", "");
+					ConversationEntryDTO systemEntry = new ConversationEntryDTO(
+							ConversationEntryEntity.SISTEMA,
+							ConversationEntryType.INICIO,
+							Instant.now(),
+							"Pantalla :" + externalRequest.pantallaContexto() + " Agregada a la conversacion :",
+							null,
+							null);
+					ConversationSessionDTO newSession = ConversationSessionDTO.create(sessionId, userId, userPhoneNumber).withPantallaContexto(externalRequest.pantallaContexto());
+					return persistConversationTurn(newSession, systemEntry)
+							.then(quickReplyContentService.getQuickReplies(externalRequest.pantallaContexto()))
+							.map(quickReplyDTO -> new DetectIntentResponseDTO(sessionId, null, quickReplyDTO));
+				});
+	}
+
+	public Mono<DetectIntentResponseDTO> manageConversation(ExternalConvRequestDTO externalRequest) {
+		String userPhoneNumber = externalRequest.user().telefono();
+		if (userPhoneNumber == null || userPhoneNumber.isBlank()) {
+			logger.warn("No phone number provided in request. Cannot manage conversation session without it.");
+			return Mono
+					.error(new IllegalArgumentException("Phone number is required to manage conversation sessions."));
+		}
+
+		return memoryStoreConversationService.getSessionByTelefono(userPhoneNumber)
+				.switchIfEmpty(Mono.error(
+						new IllegalStateException("No quick reply session found for phone number")))
+				.flatMap(session -> {
+
+					return memoryStoreConversationService.getMessages(session.sessionId()).collectList().flatMap(messages -> {
+						ConversationEntryDTO userEntry = ConversationEntryDTO.forUser(externalRequest.message());
+
+						int lastInitIndex = IntStream.range(0, messages.size())
+								.map(i -> messages.size() - 1 - i)
+								.filter(i -> {
+									ConversationMessageDTO message = messages.get(i);
+									return message.type() == MessageType.SYSTEM;
+								})
+								.findFirst()
+								.orElse(-1);
+
+						long userMessagesCount;
+						if (lastInitIndex != -1) {
+							userMessagesCount = messages.subList(lastInitIndex + 1, messages.size()).stream()
+									.filter(e -> e.type() == MessageType.USER)
+									.count();
+						} else {
+							userMessagesCount = 0;
+						}
+
+						if (userMessagesCount == 0) { // Is the first user message in the Quick-Replies flow
+							// This is the second message of the flow. Return the full list.
+							return persistConversationTurn(session, userEntry)
+									.then(quickReplyContentService.getQuickReplies(session.pantallaContexto()))
+                                .flatMap(quickReplyDTO -> {
+                                    ConversationEntryDTO agentEntry = ConversationEntryDTO
+												.forAgentWithMessage(quickReplyDTO.toString());
+										return persistConversationTurn(session, agentEntry)
+												.thenReturn(new DetectIntentResponseDTO(session.sessionId(), null, quickReplyDTO));
+                                });
+						} else if (userMessagesCount == 1) { // Is the second user message in the QR flow
+							// This is the third message of the flow. Filter and end.
+							return persistConversationTurn(session, userEntry)
+									.then(quickReplyContentService.getQuickReplies(session.pantallaContexto()))
+									.flatMap(quickReplyDTO -> {
+										List<QuestionDTO> matchedPreguntas = quickReplyDTO.preguntas().stream()
+												.filter(p -> p.titulo().equalsIgnoreCase(externalRequest.message().trim()))
+												.toList();
+
+										if (!matchedPreguntas.isEmpty()) {
+											// Matched question, return the answer
+											String respuesta = matchedPreguntas.get(0).respuesta();
+											QueryResultDTO queryResult = new QueryResultDTO(respuesta, null);
+											DetectIntentResponseDTO response = new DetectIntentResponseDTO(session.sessionId(),
+													queryResult, null);
+
+											return memoryStoreConversationService
+													.updateSession(session.withPantallaContexto(null))
+													.then(persistConversationTurn(session,
+															ConversationEntryDTO.forAgentWithMessage(respuesta)))
+													.thenReturn(response);
+										} else {
+											// No match, delegate to Dialogflow
+											return memoryStoreConversationService
+													.updateSession(session.withPantallaContexto(null))
+													.then(conversationManagerService.manageConversation(externalRequest));
+										}
+									});
+						} else {
+							// Should not happen. End the flow.
+							return memoryStoreConversationService.updateSession(session.withPantallaContexto(null))
+									.then(Mono.just(new DetectIntentResponseDTO(session.sessionId(), null,
+											new QuickReplyDTO("Flow Error", null, null, null, Collections.emptyList()))));
+						}
+					});
+				});
+	}
+
+	private Mono<Void> persistConversationTurn(ConversationSessionDTO session, ConversationEntryDTO entry) {
+		logger.debug("Starting Write-Back persistence for quick reply session {}. Type: {}. Writing to Redis first.",
+				session.sessionId(), entry.type().name());
+		ConversationMessageDTO message = conversationEntryMapper.toConversationMessageDTO(entry);
+		ConversationSessionDTO updatedSession = session.withLastMessage(message.text());
+		return memoryStoreConversationService.saveSession(updatedSession)
+				.then(memoryStoreConversationService.saveMessage(session.sessionId(), message))
+				.doOnSuccess(v -> logger.info(
+						"Entry saved to Redis for quick reply session {}. Type: {}. Kicking off async Firestore write-back.",
+						session.sessionId(), entry.type().name()))
+				.then(firestoreConversationService.saveSession(updatedSession)
+						.then(firestoreConversationService.saveMessage(session.sessionId(), message))
+						.doOnSuccess(fsVoid -> logger.debug(
+								"Asynchronously (Write-Back): Entry successfully saved to Firestore for quick reply session {}. Type: {}.",
+								session.sessionId(), entry.type().name()))
+						.doOnError(fsError -> logger.error(
+								"Asynchronously (Write-Back): Failed to save entry to Firestore for quick reply session {}. Type: {}: {}",
+								session.sessionId(), entry.type().name(), fsError.getMessage(), fsError)))
+				.doOnError(
+						e -> logger.error("Error during primary Redis write for quick reply session {}. Type: {}: {}",
+								session.sessionId(), entry.type().name(), e.getMessage(), e));
+	}
+}

src.bak/main/java/com/example/service/quickreplies/QuickReplyContentService.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.quickreplies;
+
+import com.example.dto.quickreplies.QuestionDTO;
+import com.example.dto.quickreplies.QuickReplyDTO;
+import com.google.cloud.firestore.DocumentSnapshot;
+import com.google.cloud.firestore.Firestore;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+import java.util.Collections;
+import java.util.List;
+
+@Service
+public class QuickReplyContentService {
+    private static final Logger logger = LoggerFactory.getLogger(QuickReplyContentService.class);
+    private final Firestore firestore;
+    public QuickReplyContentService(Firestore firestore) {
+        this.firestore = firestore;
+    }
+    public Mono<QuickReplyDTO> getQuickReplies(String collectionId) {
+        logger.info("Fetching quick replies from Firestore for document: {}", collectionId);
+        if (collectionId == null || collectionId.isBlank()) {
+            logger.warn("collectionId is null or empty. Returning empty quick replies.");
+            return Mono.just(new QuickReplyDTO("empty", null, null, null, Collections.emptyList()));
+        }
+        return Mono.fromCallable(() -> {
+            try {
+                return firestore.collection("artifacts")
+                                .document("default-app-id")
+                                .collection("quick-replies")
+                                .document(collectionId)
+                                .get()
+                                .get();
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        })
+        .filter(DocumentSnapshot::exists)
+        .map(document -> {
+            String header = document.getString("header");
+            String body = document.getString("body");
+            String button = document.getString("button");
+            String headerSection = document.getString("header_section");
+            List<Map<String, Object>> preguntasData = (List<Map<String, Object>>) document.get("preguntas");
+            List<QuestionDTO> preguntas = preguntasData.stream()
+            .map(p -> new QuestionDTO((String) p.get("titulo"), (String) p.get("descripcion"), (String) p.get("respuesta")))
+            .toList();
+            return new QuickReplyDTO(header, body, button, headerSection, preguntas);
+        })
+        .doOnSuccess(quickReplyDTO -> {
+            if (quickReplyDTO != null) {
+                logger.info("Successfully fetched {} quick replies for document: {}", quickReplyDTO.preguntas().size(), collectionId);
+            } else {
+                logger.info("No quick reply document found for id: {}", collectionId);
+            }
+        })
+        .doOnError(error -> logger.error("Error fetching quick replies from Firestore for document: {}", collectionId, error))
+        .switchIfEmpty(Mono.defer(() -> {
+            logger.info("No quick reply document found for id: {}", collectionId);
+            return Mono.empty();
+        }));
+    }
+}

src.bak/main/java/com/example/util/FirestoreDataImporter.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.util;
+
+import com.example.repository.FirestoreBaseRepository;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.cloud.firestore.DocumentReference;
+import com.google.cloud.firestore.DocumentSnapshot;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ExecutionException;
+
+public class FirestoreDataImporter {
+
+    private static final Logger logger = LoggerFactory.getLogger(FirestoreDataImporter.class);
+    private static final String QUICK_REPLIES_COLLECTION_PATH_FORMAT = "artifacts/%s/quick-replies";
+
+    private final FirestoreBaseRepository firestoreBaseRepository;
+    private final ObjectMapper objectMapper;
+
+    private final boolean isImporterEnabled; 
+
+    public FirestoreDataImporter(FirestoreBaseRepository firestoreBaseRepository, ObjectMapper objectMapper) {
+        this.firestoreBaseRepository = firestoreBaseRepository;
+        this.objectMapper = objectMapper;
+        this.isImporterEnabled = Boolean.parseBoolean(System.getProperty("firestore.data.importer.enabled"));
+
+    }
+
+    public void runImport() {
+        if (isImporterEnabled) {
+            try {
+                importQuickReplies();
+            } catch (Exception e) {
+                logger.error("Failed to import data to Firestore on startup", e);
+            }
+        }
+    }
+
+    private void importQuickReplies() throws IOException, ExecutionException, InterruptedException {
+        String collectionPath = String.format(QUICK_REPLIES_COLLECTION_PATH_FORMAT, firestoreBaseRepository.getAppId());
+
+        importJson(collectionPath, "home");
+        importJson(collectionPath, "pagos");
+        importJson(collectionPath, "finanzas");
+        importJson(collectionPath, "lealtad");
+        importJson(collectionPath, "descubre");
+        importJson(collectionPath, "detalle-tdc");
+        importJson(collectionPath, "detalle-tdd");
+        importJson(collectionPath, "transferencia");
+        importJson(collectionPath, "retiro-sin-tarjeta");
+        importJson(collectionPath, "capsulas");
+        importJson(collectionPath, "inversiones");
+        importJson(collectionPath, "prestamos");
+
+        logger.info("All JSON files were imported successfully.");
+    }
+
+    private void importJson(String collectionPath, String documentId) throws IOException, ExecutionException, InterruptedException {
+        String resourcePath = "/quick-replies/" + documentId + ".json";
+        try (InputStream inputStream = getClass().getResourceAsStream(resourcePath)) {
+            if (inputStream == null) {
+                logger.warn("Resource not found: {}", resourcePath);
+                return;
+            }
+            Map<String, Object> localData = objectMapper.readValue(inputStream, new TypeReference<Map<String, Object>>() {});
+            DocumentReference docRef = firestoreBaseRepository.getDocumentReference(collectionPath, documentId);
+            
+            if (firestoreBaseRepository.documentExists(docRef)) {
+                DocumentSnapshot documentSnapshot = firestoreBaseRepository.getDocumentSnapshot(docRef);
+                Map<String, Object> firestoreData = documentSnapshot.getData();
+                if (!Objects.equals(localData, firestoreData)) {
+                    firestoreBaseRepository.setDocument(docRef, localData);
+                    logger.info("Successfully updated {} in Firestore.", documentId);
+                }
+            } else {
+                firestoreBaseRepository.setDocument(docRef, localData);
+                logger.info("Successfully imported {} to Firestore.", documentId);
+            }
+        }
+    }
+}

src.bak/main/java/com/example/util/FirestoreTimestampDeserializer.java

@@ -0,0 +1,75 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.util;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonToken;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.google.cloud.Timestamp;
+import java.io.IOException;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Custom Jackson Deserializer for com.google.cloud.Timestamp.
+ * Handles deserialization from embedded objects (direct Timestamp instances),
+ * ISO 8601 strings, and JSON objects with "seconds" and "nanos" fields.
+ */
+public class FirestoreTimestampDeserializer extends JsonDeserializer<Timestamp> {
+
+    private static final Logger logger = LoggerFactory.getLogger(FirestoreTimestampDeserializer.class);
+
+    @Override
+    public Timestamp deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+        JsonToken token = p.getCurrentToken();
+
+        if (token == JsonToken.VALUE_EMBEDDED_OBJECT) {
+            // This is the ideal case when ObjectMapper.convertValue gets a direct Timestamp object
+            Object embedded = p.getEmbeddedObject();
+            if (embedded instanceof Timestamp) {
+                logger.debug("FirestoreTimestampDeserializer: Deserializing from embedded Timestamp object: {}", embedded);
+                return (Timestamp) embedded;
+            }
+        } else if (token == JsonToken.VALUE_STRING) {
+            // Handles cases where the timestamp is represented as an ISO 8601 string
+            String timestampString = p.getText();
+            try {
+                logger.debug("FirestoreTimestampDeserializer: Deserializing from String: {}", timestampString);
+                return Timestamp.parseTimestamp(timestampString);
+            } catch (IllegalArgumentException e) {
+                logger.error("FirestoreTimestampDeserializer: Failed to parse timestamp string: '{}'", timestampString, e);
+                throw new IOException("Failed to parse timestamp string: " + timestampString, e);
+            }
+        } else if (token == JsonToken.START_OBJECT) {
+            // This is crucial for handling the "Cannot deserialize ... from Object value (token JsonToken.START_OBJECT)" error.
+            // It assumes the object represents { "seconds": X, "nanos": Y }
+            logger.debug("FirestoreTimestampDeserializer: Deserializing from JSON object.");
+            
+            // Suppress the unchecked warning here, as we expect a Map<String, Number>
+            @SuppressWarnings("unchecked")
+            Map<String, Number> map = p.readValueAs(Map.class); 
+            
+            if (map != null && map.containsKey("seconds") && map.containsKey("nanos")) {
+                Number secondsNum = map.get("seconds");
+                Number nanosNum = map.get("nanos");
+                
+                if (secondsNum != null && nanosNum != null) {
+                    Long seconds = secondsNum.longValue();
+                    Integer nanos = nanosNum.intValue();
+                    return Timestamp.ofTimeSecondsAndNanos(seconds, nanos);
+                }
+            }
+            logger.error("FirestoreTimestampDeserializer: JSON object missing 'seconds' or 'nanos' fields, or fields are not numbers.");
+        }
+
+        // If none of the above formats match, log an error and delegate to default handling
+        logger.error("FirestoreTimestampDeserializer: Unexpected token type for Timestamp deserialization. Expected Embedded Object, String, or START_OBJECT. Got: {}", token);
+        // This will likely re-throw an error indicating inability to deserialize.
+        return (Timestamp) ctxt.handleUnexpectedToken(Timestamp.class, p);
+    }
+}

src.bak/main/java/com/example/util/FirestoreTimestampSerializer.java

@@ -0,0 +1,35 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.util;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.google.cloud.Timestamp;
+import java.io.IOException;
+
+/**
+ * Custom Jackson Serializer for com.google.cloud.Timestamp.
+ * This is crucial for ObjectMapper.convertValue to correctly handle Timestamp objects
+ * when they are encountered in a Map<String, Object> and need to be internally
+ * serialized before deserialization into a DTO. It converts Timestamp into a
+ * simple JSON object with "seconds" and "nanos" fields.
+ */
+public class FirestoreTimestampSerializer extends JsonSerializer<Timestamp> {
+
+    @Override
+    public void serialize(Timestamp value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
+        if (value == null) {
+            gen.writeNull();
+        } else {
+            // Write Timestamp as a JSON object with seconds and nanos
+            gen.writeStartObject();
+            gen.writeNumberField("seconds", value.getSeconds());
+            gen.writeNumberField("nanos", value.getNanos());
+            gen.writeEndObject();
+        }
+    }
+}

src.bak/main/java/com/example/util/PerformanceTimer.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+ * Your use of it is subject to your agreement with Google.
+ */
+package com.example.util;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.function.Supplier;
+
+/**
+ * A utility class to measure and log the execution time of a given operation.
+ * It uses the Supplier functional interface to wrap the code block to be timed.
+ */
+public class PerformanceTimer {
+    private static final Logger logger = LoggerFactory.getLogger(PerformanceTimer.class);
+
+
+    public static <T> T timeExecution(String operationName, Supplier<T> operation) {
+        long startTime = System.nanoTime();
+        try {
+            T result = operation.get();
+            long endTime = System.nanoTime();
+            long durationNanos = endTime - startTime;
+            double durationMillis = durationNanos / 1_000_000.0;
+            logger.info("Operation '{}' completed in {} ms.", operationName, String.format("%.2f", durationMillis));
+            return result;
+        } catch (Exception e) {
+            long endTime = System.nanoTime();
+            long durationNanos = endTime - startTime;
+            double durationMillis = durationNanos / 1_000_000.0;
+            logger.error("Operation '{}' failed in {} ms: {}", operationName, String.format("%.2f", durationMillis), e.getMessage(), e);
+            throw new RuntimeException("Error during timed operation: " + operationName, e);
+        }
+    }
+}

src.bak/main/java/com/example/util/ProtobufUtil.java

@@ -0,0 +1,89 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.util;
+
+import com.google.protobuf.ListValue;
+import com.google.protobuf.NullValue;
+import com.google.protobuf.Struct;
+import com.google.protobuf.Value;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class ProtobufUtil {
+
+    private static final Logger logger = LoggerFactory.getLogger(ProtobufUtil.class);
+
+    /**
+     * Converts a Java Object to a Protobuf Value.
+     * Supports primitive types, String, Map, and List.
+     * Maps will be converted to Protobuf Structs.
+     * Lists will be converted to Protobuf ListValues.
+     */
+    @SuppressWarnings("rawtypes")
+    public static Value convertJavaObjectToProtobufValue(Object obj) {
+        if (obj == null) {
+            return Value.newBuilder().setNullValue(NullValue.NULL_VALUE).build();
+        } else if (obj instanceof Boolean) {
+            return Value.newBuilder().setBoolValue((Boolean) obj).build();
+        } else if (obj instanceof Integer) {
+            return Value.newBuilder().setNumberValue(((Integer) obj).doubleValue()).build();
+        } else if (obj instanceof Long) {
+            return Value.newBuilder().setNumberValue(((Long) obj).doubleValue()).build();
+        } else if (obj instanceof Double) {
+            return Value.newBuilder().setNumberValue((Double) obj).build();
+        } else if (obj instanceof String) {
+            return Value.newBuilder().setStringValue((String) obj).build();
+        } else if (obj instanceof Enum) {
+            return Value.newBuilder().setStringValue(((Enum) obj).name()).build();
+        } else if (obj instanceof Map) {
+            Struct.Builder structBuilder = Struct.newBuilder();
+            ((Map<?, ?>) obj).forEach((key, val) ->
+                    structBuilder.putFields(String.valueOf(key), convertJavaObjectToProtobufValue(val))
+            );
+            return Value.newBuilder().setStructValue(structBuilder.build()).build();
+        } else if (obj instanceof List) {
+            ListValue.Builder listValueBuilder = ListValue.newBuilder();
+            ((List<?>) obj).forEach(item ->
+                    listValueBuilder.addValues(convertJavaObjectToProtobufValue(item))
+            );
+            return Value.newBuilder().setListValue(listValueBuilder.build()).build();
+        }
+        logger.warn("Unsupported type for Protobuf conversion: {}. Converting to String.", obj.getClass().getName());
+        return Value.newBuilder().setStringValue(obj.toString()).build();
+    }
+
+    /**
+     * Converts a Protobuf Value to a Java Object.
+     * Supports Null, Boolean, Number, String, Struct (to Map), and ListValue (to List).
+     */
+    public static Object convertProtobufValueToJavaObject(Value protobufValue) {
+        return switch (protobufValue.getKindCase()) {
+            case NULL_VALUE -> null;
+            case BOOL_VALUE -> protobufValue.getBoolValue();
+            case NUMBER_VALUE -> protobufValue.getNumberValue();
+            case STRING_VALUE -> protobufValue.getStringValue();
+            case STRUCT_VALUE -> protobufValue.getStructValue().getFieldsMap().entrySet().stream()
+                    .collect(Collectors.toMap(
+                            Map.Entry::getKey,
+                            entry -> convertProtobufValueToJavaObject(entry.getValue()),
+                            (oldValue, newValue) -> oldValue,
+                            LinkedHashMap::new
+                    ));
+            case LIST_VALUE -> protobufValue.getListValue().getValuesList().stream()
+                    .map(ProtobufUtil::convertProtobufValueToJavaObject) // Use static method reference
+                    .collect(Collectors.toList());
+            default -> {
+                logger.warn("Unsupported Protobuf Value type: {}. Returning null.", protobufValue.getKindCase());
+                yield null;
+            }
+        };
+    }
+}

src.bak/main/java/com/example/util/SessionIdGenerator.java

@@ -0,0 +1,68 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.util;
+
+import java.util.UUID;
+import java.util.Base64;
+
+/**
+ * A utility class for generating consistent and formatted session IDs.
+ * Centralizing ID generation ensures all parts of the application use the same
+ * logic and format.
+ */
+public final class SessionIdGenerator {
+
+    // Private constructor to prevent instantiation of the utility class.
+    private SessionIdGenerator() {}
+
+    /**
+     * Generates a standard, version 4 (random) UUID as a string.
+     * This is the most common and robust approach for general-purpose unique IDs.
+     * The UUID is a 36-character string with hyphens (e.g., "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx").
+     *
+     * @return a new, randomly generated UUID string.
+     */
+    public static String generateStandardSessionId() {
+        return UUID.randomUUID().toString();
+    }
+
+    /**
+     * Generates a more compact session ID by removing the hyphens from a standard UUID.
+     * This is useful for contexts where a shorter or URL-friendly ID is needed.
+     *
+     * @return a 32-character UUID string without hyphens.
+     */
+    public static String generateCompactSessionId() {
+        return UUID.randomUUID().toString().replace("-", "");
+    }
+
+    /**
+     * Generates a base64-encoded, URL-safe session ID from a UUID.
+     * This provides a very compact, yet robust, representation of the UUID.
+     * It's ideal for use in URLs, cookies, or other contexts where size matters.
+     *
+     * @return a new, base64-encoded UUID string.
+     */
+    public static String generateUrlSafeSessionId() {
+        UUID uuid = UUID.randomUUID();
+        byte[] uuidBytes = toBytes(uuid);
+        return Base64.getUrlEncoder().withoutPadding().encodeToString(uuidBytes);
+    }
+    
+    // Helper method to convert UUID to a byte array
+    private static byte[] toBytes(UUID uuid) {
+        long mostSignificantBits = uuid.getMostSignificantBits();
+        long leastSignificantBits = uuid.getLeastSignificantBits();
+        byte[] bytes = new byte[16];
+        for (int i = 0; i < 8; i++) {
+            bytes[i] = (byte) (mostSignificantBits >>> (8 * (7 - i)));
+        }
+        for (int i = 0; i < 8; i++) {
+            bytes[8 + i] = (byte) (leastSignificantBits >>> (8 * (7 - i)));
+        }
+        return bytes;
+    }
+}

src.bak/main/java/com/example/util/TextObfuscator.java

@@ -0,0 +1,98 @@
+/*
+* Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose.
+* Your use of it is subject to your agreement with Google.
+*/
+
+package com.example.util;
+
+import java.util.Comparator;
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.privacy.dlp.v2.Finding;
+import com.google.privacy.dlp.v2.InspectContentResponse;
+
+public class TextObfuscator {
+	private static final Logger logger = LoggerFactory.getLogger(TextObfuscator.class);
+
+	public static String obfuscate(InspectContentResponse response, String textToInspect) {
+
+		List<Finding> findings = response.getResult().getFindingsList().stream()
+				.filter(finding -> finding.getLikelihoodValue() > 3)
+				.sorted(Comparator.comparing(Finding::getLikelihoodValue).reversed())
+				.peek(finding -> logger.info("InfoType: {} | Likelihood: {}", finding.getInfoType().getName(),
+						finding.getLikelihoodValue()))
+				.toList();
+
+		for (Finding finding : findings) {
+			String quote = finding.getQuote();
+
+			switch (finding.getInfoType().getName()) {
+				case "CREDIT_CARD_NUMBER":
+					textToInspect = textToInspect.replace(quote, "**** **** **** " + getLast4(quote));
+					break;
+				case "CREDIT_CARD_EXPIRATION_DATE":
+				case "FECHA_VENCIMIENTO":
+					textToInspect = textToInspect.replace(quote, "[FECHA_VENCIMIENTO_TARJETA]");
+					break;
+				case "CVV_NUMBER":
+				case "CVV":
+					textToInspect = textToInspect.replace(quote, "[CVV]");
+					break;
+				case "EMAIL_ADDRESS":
+					textToInspect = textToInspect.replace(quote, "[CORREO]");
+					break;
+				case "PERSON_NAME":
+					textToInspect = textToInspect.replace(quote, "[NOMBRE]");
+					break;
+				case "PHONE_NUMBER":
+					textToInspect = textToInspect.replace(quote, "[TELEFONO]");
+					break;
+				case "DIRECCION":
+				case "DIR_COLONIA":
+				case "DIR_DEL_MUN":
+				case "DIR_INTERIOR":
+				case "DIR_ESQUINA":
+				case "DIR_CIUDAD_EDO":
+				case "DIR_CP":
+					textToInspect = textToInspect.replace(quote, "[DIRECCION]");
+					break;
+				case "CLABE_INTERBANCARIA":
+					textToInspect = textToInspect.replace(quote, "[CLABE]");
+					break;
+				case "CLAVE_RASTREO_SPEI":
+					textToInspect = textToInspect.replace(quote, "[CLAVE_RASTREO]");
+					break;
+				case "NIP":
+					textToInspect = textToInspect.replace(quote, "[NIP]");
+					break;
+				case "SALDO":
+					textToInspect = textToInspect.replace(quote, "[SALDO]");
+					break;
+				case "CUENTA":
+					textToInspect = textToInspect.replace(quote, "**************" + getLast4(quote));
+					break;
+				case "NUM_ACLARACION":
+					textToInspect = textToInspect.replace(quote, "[NUM_ACLARACION]");
+					break;
+			}
+		}
+		textToInspect = cleanDireccion(textToInspect);
+		return textToInspect;
+	}
+
+	private static String getLast4(String quote) {
+		char[] last4 = new char[4];
+		String cleanQuote = quote.trim();
+		cleanQuote = cleanQuote.replace(" ", "");
+		cleanQuote.getChars(cleanQuote.length() - 4, cleanQuote.length(), last4, 0);
+		return new String(last4);
+	}
+
+	private static String cleanDireccion(String quote) {
+		String output = quote.replaceAll("\\[DIRECCION\\](?:(?:,\\s*|\\s+)\\[DIRECCION\\])*", "[DIRECCION]");
+		return output.trim();
+	}
+}