Initial Python rewrite

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

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+/*
+ * 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

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+/*
+ * 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

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+/*
+ * 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

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+// 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.");
+    }
+}