/*
 * 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));
    }
}