package com.emotionmuseum.controller;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.emotionmuseum.dto.Result;
import com.emotionmuseum.dto.diary.DiaryPostRequest;
import com.emotionmuseum.entity.DiaryPost;
import com.emotionmuseum.service.AuthService;
import com.emotionmuseum.service.DiaryPostService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.validation.Valid;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

/**
 * 日记控制器
 * 
 * @author emotion-museum
 * @version 1.0.0
 * @since 2024-01-01
 */
@RestController
@RequestMapping("/diary")
@Tag(name = "日记管理", description = "日记相关接口")
@Slf4j
public class DiaryPostController {

    @Autowired
    private DiaryPostService diaryPostService;

    @Autowired
    private AuthService authService;

    /**
     * 创建日记
     */
    @PostMapping("/create")
    @Operation(summary = "创建日记", description = "创建新的日记")
    public Result<DiaryPost> createDiary(HttpServletRequest request, @Valid @RequestBody DiaryPostRequest diaryRequest) {
        String token = extractToken(request);
        String userId = authService.getUserIdFromToken(token);
        if (userId == null) {
            return Result.unauthorized();
        }

        log.info("用户创建日记: {}", userId);
        return diaryPostService.createDiary(userId, diaryRequest);
    }

    /**
     * 更新日记
     */
    @PutMapping("/{diaryId}")
    @Operation(summary = "更新日记", description = "更新指定的日记")
    public Result<String> updateDiary(HttpServletRequest request,
                                    @PathVariable String diaryId,
                                    @Valid @RequestBody DiaryPostRequest diaryRequest) {
        String token = extractToken(request);
        String userId = authService.getUserIdFromToken(token);
        if (userId == null) {
            return Result.unauthorized();
        }

        log.info("用户更新日记: {}, 日记: {}", userId, diaryId);
        return diaryPostService.updateDiary(userId, diaryId, diaryRequest);
    }

    /**
     * 获取日记详情
     */
    @GetMapping("/{diaryId}")
    @Operation(summary = "获取日记详情", description = "获取指定日记的详细信息")
    public Result<DiaryPost> getDiaryById(@PathVariable String diaryId) {
        return diaryPostService.getDiaryById(diaryId);
    }

    /**
     * 获取用户日记列表
     */
    @GetMapping("/user/list")
    @Operation(summary = "获取用户日记列表", description = "获取当前用户的日记列表")
    public Result<IPage<DiaryPost>> getUserDiaries(HttpServletRequest request,
                                                 @RequestParam(defaultValue = "1") int page,
                                                 @RequestParam(defaultValue = "10") int size) {
        String token = extractToken(request);
        String userId = authService.getUserIdFromToken(token);
        if (userId == null) {
            return Result.unauthorized();
        }

        return diaryPostService.getUserDiaries(userId, page, size);
    }

    /**
     * 获取公开日记列表
     */
    @GetMapping("/public/list")
    @Operation(summary = "获取公开日记列表", description = "获取所有公开的日记列表")
    public Result<IPage<DiaryPost>> getPublicDiaries(@RequestParam(defaultValue = "1") int page,
                                                    @RequestParam(defaultValue = "10") int size) {
        return diaryPostService.getPublicDiaries(page, size);
    }

    /**
     * 根据情绪标签查询日记
     */
    @GetMapping("/emotion/{emotionTag}")
    @Operation(summary = "根据情绪标签查询日记", description = "根据情绪标签查询公开日记")
    public Result<IPage<DiaryPost>> getDiariesByEmotionTag(@PathVariable String emotionTag,
                                                         @RequestParam(defaultValue = "1") int page,
                                                         @RequestParam(defaultValue = "10") int size) {
        return diaryPostService.getDiariesByEmotionTag(emotionTag, page, size);
    }

    /**
     * 删除日记
     */
    @DeleteMapping("/{diaryId}")
    @Operation(summary = "删除日记", description = "删除指定的日记")
    public Result<String> deleteDiary(HttpServletRequest request, @PathVariable String diaryId) {
        String token = extractToken(request);
        String userId = authService.getUserIdFromToken(token);
        if (userId == null) {
            return Result.unauthorized();
        }

        log.info("用户删除日记: {}, 日记: {}", userId, diaryId);
        return diaryPostService.deleteDiary(userId, diaryId);
    }

    /**
     * 点赞日记
     */
    @PostMapping("/{diaryId}/like")
    @Operation(summary = "点赞日记", description = "对指定日记进行点赞")
    public Result<String> likeDiary(HttpServletRequest request, @PathVariable String diaryId) {
        String token = extractToken(request);
        String userId = authService.getUserIdFromToken(token);
        if (userId == null) {
            return Result.unauthorized();
        }

        log.info("用户点赞日记: {}, 日记: {}", userId, diaryId);
        return diaryPostService.likeDiary(userId, diaryId);
    }

    /**
     * 取消点赞
     */
    @PostMapping("/{diaryId}/unlike")
    @Operation(summary = "取消点赞", description = "取消对指定日记的点赞")
    public Result<String> unlikeDiary(HttpServletRequest request, @PathVariable String diaryId) {
        String token = extractToken(request);
        String userId = authService.getUserIdFromToken(token);
        if (userId == null) {
            return Result.unauthorized();
        }

        log.info("用户取消点赞: {}, 日记: {}", userId, diaryId);
        return diaryPostService.unlikeDiary(userId, diaryId);
    }

    /**
     * 获取AI点评
     */
    @GetMapping("/{diaryId}/ai-comment")
    @Operation(summary = "获取AI点评", description = "获取指定日记的AI点评")
    public Result<String> getAiComment(HttpServletRequest request, @PathVariable String diaryId) {
        String token = extractToken(request);
        String userId = authService.getUserIdFromToken(token);
        if (userId == null) {
            return Result.unauthorized();
        }

        return diaryPostService.getAiComment(userId, diaryId);
    }

    /**
     * 从请求中提取令牌
     */
    private String extractToken(HttpServletRequest request) {
        String bearerToken = request.getHeader("Authorization");
        if (bearerToken != null && bearerToken.startsWith("Bearer ")) {
            return bearerToken.substring(7);
        }
        return null;
    }
}