feat: 新增饮食记录模块，含增删改查及营养汇总功能

src/ai-coach/ai-coach.module.ts

@@ -8,11 +8,13 @@ import { AiMessage } from './models/ai-message.model';
 import { AiConversation } from './models/ai-conversation.model';
 import { PostureAssessment } from './models/posture-assessment.model';
 import { UsersModule } from '../users/users.module';
+import { DietRecordsModule } from '../diet-records/diet-records.module';
 
 @Module({
   imports: [
     ConfigModule,
     UsersModule,
+    DietRecordsModule,
     SequelizeModule.forFeature([AiConversation, AiMessage, PostureAssessment]),
   ],
   controllers: [AiCoachController],

src/ai-coach/services/diet-analysis.service.spec.ts

@@ -1,16 +1,16 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { ConfigService } from '@nestjs/config';
 import { DietAnalysisService } from './diet-analysis.service';
-import { UsersService } from '../../users/users.service';
+import { DietRecordsService } from '../../diet-records/diet-records.service';
 
 describe('DietAnalysisService - Text Analysis', () => {
   let service: DietAnalysisService;
-  let mockUsersService: Partial<UsersService>;
+  let mockDietRecordsService: Partial<DietRecordsService>;
   let mockConfigService: Partial<ConfigService>;
 
   beforeEach(async () => {
     // Mock services
-    mockUsersService = {
+    mockDietRecordsService = {
       addDietRecord: jest.fn().mockResolvedValue({}),
       getDietHistory: jest.fn().mockResolvedValue({ total: 0, records: [] }),
       getRecentNutritionSummary: jest.fn().mockResolvedValue({
@@ -41,7 +41,7 @@ describe('DietAnalysisService - Text Analysis', () => {
     const module: TestingModule = await Test.createTestingModule({
       providers: [
         DietAnalysisService,
-        { provide: UsersService, useValue: mockUsersService },
+        { provide: DietRecordsService, useValue: mockDietRecordsService },
         { provide: ConfigService, useValue: mockConfigService },
       ],
     }).compile();
@@ -57,7 +57,7 @@ describe('DietAnalysisService - Text Analysis', () => {
     it('should build a proper prompt for text analysis', () => {
       // 通过反射访问私有方法进行测试
       const prompt = (service as any).buildTextDietAnalysisPrompt('breakfast');
-      
+
       expect(prompt).toContain('作为专业营养分析师');
       expect(prompt).toContain('breakfast');
       expect(prompt).toContain('shouldRecord');
@@ -130,12 +130,12 @@ describe('DietAnalysisService - Text Analysis', () => {
       };
 
       const result = await service.processDietRecord('test-user-id', mockAnalysisResult);
-      
+
       expect(result).toBeDefined();
       expect(result?.foodName).toBe('燕麦粥');
       expect(result?.source).toBe('manual'); // 文本记录应该是manual源
       expect(result?.imageUrl).toBeUndefined();
-      expect(mockUsersService.addDietRecord).toHaveBeenCalledWith('test-user-id', expect.objectContaining({
+      expect(mockDietRecordsService.addDietRecord).toHaveBeenCalledWith('test-user-id', expect.objectContaining({
         foodName: '燕麦粥',
         source: 'manual'
       }));
@@ -164,7 +164,7 @@ describe('DietAnalysisService - Text Analysis', () => {
       };
 
       const result = await service.processDietRecord('test-user-id', mockAnalysisResult, 'https://example.com/image.jpg');
-      
+
       expect(result).toBeDefined();
       expect(result?.foodName).toBe('鸡胸肉沙拉');
       expect(result?.source).toBe('vision'); // 有图片URL应该是vision源

src/ai-coach/services/diet-analysis.service.ts

@@ -1,7 +1,7 @@
 import { Injectable, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { OpenAI } from 'openai';
-import { UsersService } from '../../users/users.service';
+import { DietRecordsService } from '../../diet-records/diet-records.service';
 import { CreateDietRecordDto } from '../../users/dto/diet-record.dto';
 import { MealType, DietRecordSource } from '../../users/models/user-diet-history.model';
 
@@ -65,7 +65,7 @@ export class DietAnalysisService {
 
   constructor(
     private readonly configService: ConfigService,
-    private readonly usersService: UsersService,
+    private readonly dietRecordsService: DietRecordsService,
   ) {
     const dashScopeApiKey = this.configService.get<string>('DASHSCOPE_API_KEY') || 'sk-e3ff4494c2f1463a8910d5b3d05d3143';
     const baseURL = this.configService.get<string>('DASHSCOPE_BASE_URL') || 'https://dashscope.aliyuncs.com/compatible-mode/v1';
@@ -240,7 +240,7 @@ export class DietAnalysisService {
         }
       };
 
-      await this.usersService.addDietRecord(userId, createDto);
+      await this.dietRecordsService.addDietRecord(userId, createDto);
       return createDto;
     } catch (error) {
       this.logger.error(`用户确认添加饮食记录失败: ${error instanceof Error ? error.message : String(error)}`);
@@ -278,7 +278,7 @@ export class DietAnalysisService {
         aiAnalysisResult: analysisResult,
       };
 
-      await this.usersService.addDietRecord(userId, createDto);
+      await this.dietRecordsService.addDietRecord(userId, createDto);
       return createDto;
     } catch (error) {
       this.logger.error(`自动添加饮食记录失败: ${error instanceof Error ? error.message : String(error)}`);
@@ -294,7 +294,7 @@ export class DietAnalysisService {
   async buildUserNutritionContext(userId: string): Promise<string> {
     try {
       // 获取最近10顿饮食记录
-      const recentDietHistory = await this.usersService.getDietHistory(userId, { limit: 10 });
+      const recentDietHistory = await this.dietRecordsService.getDietHistory(userId, { limit: 10 });
 
       if (recentDietHistory.total === 0) {
         return '\n\n=== 用户营养信息 ===\n这是用户的第一次饮食记录，请给予鼓励并介绍饮食记录的价值。\n';
@@ -303,7 +303,7 @@ export class DietAnalysisService {
       let context = '\n\n=== 用户最近饮食记录分析 ===\n';
 
       // 获取营养汇总
-      const nutritionSummary = await this.usersService.getRecentNutritionSummary(userId, 10);
+      const nutritionSummary = await this.dietRecordsService.getRecentNutritionSummary(userId, 10);
 
       context += this.buildNutritionSummaryText(nutritionSummary);
       context += this.buildMealDistributionText(recentDietHistory.records);

src/app.module.ts

@@ -15,6 +15,7 @@ import { ExercisesModule } from './exercises/exercises.module';
 import { WorkoutsModule } from './workouts/workouts.module';
 import { MoodCheckinsModule } from './mood-checkins/mood-checkins.module';
 import { GoalsModule } from './goals/goals.module';
+import { DietRecordsModule } from './diet-records/diet-records.module';
 
 @Module({
   imports: [
@@ -35,6 +36,7 @@ import { GoalsModule } from './goals/goals.module';
     WorkoutsModule,
     MoodCheckinsModule,
     GoalsModule,
+    DietRecordsModule,
   ],
   controllers: [AppController],
   providers: [AppService],

src/diet-records/diet-records.controller.ts

@@ -0,0 +1,124 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Body,
+  Param,
+  HttpCode,
+  HttpStatus,
+  Put,
+  Delete,
+  Query,
+  Logger,
+  UseGuards,
+  NotFoundException,
+} from '@nestjs/common';
+import { ApiOperation, ApiBody, ApiResponse, ApiTags, ApiQuery } from '@nestjs/swagger';
+import { DietRecordsService } from './diet-records.service';
+import { CreateDietRecordDto, UpdateDietRecordDto, GetDietHistoryQueryDto, DietRecordResponseDto, DietHistoryResponseDto, NutritionSummaryDto } from '../users/dto/diet-record.dto';
+import { JwtAuthGuard } from '../common/guards/jwt-auth.guard';
+import { CurrentUser } from '../common/decorators/current-user.decorator';
+import { AccessTokenPayload } from '../users/services/apple-auth.service';
+
+@ApiTags('diet-records')
+@Controller('diet-records')
+export class DietRecordsController {
+  private readonly logger = new Logger(DietRecordsController.name);
+
+  constructor(
+    private readonly dietRecordsService: DietRecordsService,
+  ) { }
+
+  /**
+   * 添加饮食记录
+   */
+  @UseGuards(JwtAuthGuard)
+  @Post()
+  @HttpCode(HttpStatus.CREATED)
+  @ApiOperation({ summary: '添加饮食记录' })
+  @ApiBody({ type: CreateDietRecordDto })
+  @ApiResponse({ status: 201, description: '成功添加饮食记录', type: DietRecordResponseDto })
+  async addDietRecord(
+    @Body() createDto: CreateDietRecordDto,
+    @CurrentUser() user: AccessTokenPayload,
+  ): Promise<DietRecordResponseDto> {
+    this.logger.log(`添加饮食记录 - 用户ID: ${user.sub}, 食物: ${createDto.foodName}`);
+    return this.dietRecordsService.addDietRecord(user.sub, createDto);
+  }
+
+  /**
+   * 获取饮食记录历史
+   */
+  @UseGuards(JwtAuthGuard)
+  @Get()
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: '获取饮食记录历史' })
+  @ApiQuery({ name: 'startDate', required: false, description: '开始日期' })
+  @ApiQuery({ name: 'endDate', required: false, description: '结束日期' })
+  @ApiQuery({ name: 'mealType', required: false, description: '餐次类型' })
+  @ApiQuery({ name: 'page', required: false, description: '页码' })
+  @ApiQuery({ name: 'limit', required: false, description: '每页数量' })
+  @ApiResponse({ status: 200, description: '成功获取饮食记录', type: DietHistoryResponseDto })
+  async getDietHistory(
+    @Query() query: GetDietHistoryQueryDto,
+    @CurrentUser() user: AccessTokenPayload,
+  ): Promise<DietHistoryResponseDto> {
+    this.logger.log(`获取饮食记录 - 用户ID: ${user.sub}`);
+    return this.dietRecordsService.getDietHistory(user.sub, query);
+  }
+
+  /**
+   * 更新饮食记录
+   */
+  @UseGuards(JwtAuthGuard)
+  @Put(':id')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: '更新饮食记录' })
+  @ApiBody({ type: UpdateDietRecordDto })
+  @ApiResponse({ status: 200, description: '成功更新饮食记录', type: DietRecordResponseDto })
+  async updateDietRecord(
+    @Param('id') recordId: string,
+    @Body() updateDto: UpdateDietRecordDto,
+    @CurrentUser() user: AccessTokenPayload,
+  ): Promise<DietRecordResponseDto> {
+    this.logger.log(`更新饮食记录 - 用户ID: ${user.sub}, 记录ID: ${recordId}`);
+    return this.dietRecordsService.updateDietRecord(user.sub, parseInt(recordId), updateDto);
+  }
+
+  /**
+   * 删除饮食记录
+   */
+  @UseGuards(JwtAuthGuard)
+  @Delete(':id')
+  @HttpCode(HttpStatus.NO_CONTENT)
+  @ApiOperation({ summary: '删除饮食记录' })
+  @ApiResponse({ status: 204, description: '成功删除饮食记录' })
+  async deleteDietRecord(
+    @Param('id') recordId: string,
+    @CurrentUser() user: AccessTokenPayload,
+  ): Promise<void> {
+    this.logger.log(`删除饮食记录 - 用户ID: ${user.sub}, 记录ID: ${recordId}`);
+    const success = await this.dietRecordsService.deleteDietRecord(user.sub, parseInt(recordId));
+    if (!success) {
+      throw new NotFoundException('饮食记录不存在');
+    }
+  }
+
+  /**
+   * 获取营养汇总分析
+   */
+  @UseGuards(JwtAuthGuard)
+  @Get('nutrition-summary')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: '获取营养汇总分析' })
+  @ApiQuery({ name: 'mealCount', required: false, description: '分析的餐次数量，默认10' })
+  @ApiResponse({ status: 200, description: '成功获取营养汇总', type: NutritionSummaryDto })
+  async getNutritionSummary(
+    @Query('mealCount') mealCount: string,
+    @CurrentUser() user: AccessTokenPayload,
+  ): Promise<NutritionSummaryDto> {
+    this.logger.log(`获取营养汇总 - 用户ID: ${user.sub}`);
+    const count = mealCount ? parseInt(mealCount) : 10;
+    return this.dietRecordsService.getRecentNutritionSummary(user.sub, count);
+  }
+}

src/diet-records/diet-records.module.ts

@@ -0,0 +1,18 @@
+import { Module } from '@nestjs/common';
+import { SequelizeModule } from '@nestjs/sequelize';
+import { DietRecordsController } from './diet-records.controller';
+import { DietRecordsService } from './diet-records.service';
+import { UserDietHistory } from '../users/models/user-diet-history.model';
+import { ActivityLog } from '../activity-logs/models/activity-log.model';
+import { UsersModule } from '../users/users.module';
+
+@Module({
+  imports: [
+    SequelizeModule.forFeature([UserDietHistory, ActivityLog]),
+    UsersModule,
+  ],
+  controllers: [DietRecordsController],
+  providers: [DietRecordsService],
+  exports: [DietRecordsService],
+})
+export class DietRecordsModule { }

src/diet-records/diet-records.service.ts

@@ -0,0 +1,310 @@
+import { Injectable, Logger, NotFoundException } from '@nestjs/common';
+import { InjectModel } from '@nestjs/sequelize';
+import { Op, Transaction } from 'sequelize';
+import { Sequelize } from 'sequelize-typescript';
+import { UserDietHistory } from '../users/models/user-diet-history.model';
+import { ActivityLog } from '../activity-logs/models/activity-log.model';
+import { CreateDietRecordDto, UpdateDietRecordDto, GetDietHistoryQueryDto, DietRecordResponseDto, DietHistoryResponseDto, NutritionSummaryDto } from '../users/dto/diet-record.dto';
+import { DietRecordSource } from '../users/models/user-diet-history.model';
+import { ResponseCode } from '../base.dto';
+
+@Injectable()
+export class DietRecordsService {
+  private readonly logger = new Logger(DietRecordsService.name);
+
+  constructor(
+    @InjectModel(UserDietHistory)
+    private readonly userDietHistoryModel: typeof UserDietHistory,
+    @InjectModel(ActivityLog)
+    private readonly activityLogModel: typeof ActivityLog,
+    private readonly sequelize: Sequelize,
+  ) { }
+
+  /**
+   * 添加饮食记录
+   */
+  async addDietRecord(userId: string, createDto: CreateDietRecordDto): Promise<DietRecordResponseDto> {
+    const t = await this.sequelize.transaction();
+    try {
+      // 创建饮食记录
+      const dietRecord = await this.userDietHistoryModel.create({
+        userId,
+        mealType: createDto.mealType,
+        foodName: createDto.foodName,
+        foodDescription: createDto.foodDescription,
+        weightGrams: createDto.weightGrams,
+        portionDescription: createDto.portionDescription,
+        estimatedCalories: createDto.estimatedCalories,
+        proteinGrams: createDto.proteinGrams,
+        carbohydrateGrams: createDto.carbohydrateGrams,
+        fatGrams: createDto.fatGrams,
+        fiberGrams: createDto.fiberGrams,
+        sugarGrams: createDto.sugarGrams,
+        sodiumMg: createDto.sodiumMg,
+        additionalNutrition: createDto.additionalNutrition,
+        source: createDto.source || DietRecordSource.Manual,
+        mealTime: createDto.mealTime ? new Date(createDto.mealTime) : new Date(),
+        imageUrl: createDto.imageUrl,
+        aiAnalysisResult: createDto.aiAnalysisResult,
+        notes: createDto.notes,
+      }, { transaction: t });
+
+      // 记录活动日志
+      await this.activityLogModel.create({
+        userId,
+        action: 'diet_record_added',
+        details: {
+          recordId: dietRecord.id,
+          foodName: createDto.foodName,
+          mealType: createDto.mealType,
+          calories: createDto.estimatedCalories,
+          source: createDto.source || DietRecordSource.Manual,
+        },
+      }, { transaction: t });
+
+      await t.commit();
+
+      return this.mapDietRecordToDto(dietRecord)
+    } catch (e) {
+      await t.rollback();
+      this.logger.error(`addDietRecord error: ${e instanceof Error ? e.message : String(e)}`);
+      throw e;
+    }
+  }
+
+  /**
+   * 通过视觉识别添加饮食记录
+   */
+  async addDietRecordByVision(userId: string, dietData: CreateDietRecordDto): Promise<DietRecordResponseDto> {
+    return this.addDietRecord(userId, {
+      ...dietData,
+      source: DietRecordSource.Vision
+    });
+  }
+
+  /**
+   * 获取饮食记录历史
+   */
+  async getDietHistory(userId: string, query: GetDietHistoryQueryDto): Promise<DietHistoryResponseDto> {
+    const where: any = { userId, deleted: false };
+
+    // 日期过滤
+    if (query.startDate || query.endDate) {
+      where.createdAt = {} as any;
+      if (query.startDate) where.createdAt[Op.gte] = new Date(query.startDate);
+      if (query.endDate) where.createdAt[Op.lte] = new Date(query.endDate);
+    }
+
+    // 餐次类型过滤
+    if (query.mealType) {
+      where.mealType = query.mealType;
+    }
+
+    const limit = Math.min(100, Math.max(1, query.limit || 20));
+    const page = Math.max(1, query.page || 1);
+    const offset = (page - 1) * limit;
+
+    const { rows, count } = await this.userDietHistoryModel.findAndCountAll({
+      where,
+      order: [['created_at', 'DESC']],
+      limit,
+      offset,
+    });
+
+    const totalPages = Math.ceil(count / limit);
+
+    return {
+      records: rows.map(record => this.mapDietRecordToDto(record)),
+      total: count,
+      page,
+      limit,
+      totalPages,
+    };
+  }
+
+  /**
+   * 更新饮食记录
+   */
+  async updateDietRecord(userId: string, recordId: number, updateDto: UpdateDietRecordDto): Promise<DietRecordResponseDto> {
+    const t = await this.sequelize.transaction();
+    try {
+      const record = await this.userDietHistoryModel.findOne({
+        where: { id: recordId, userId, deleted: false },
+        transaction: t,
+      });
+
+      if (!record) {
+        throw new NotFoundException('饮食记录不存在');
+      }
+
+      // 更新记录
+      await record.update({
+        mealType: updateDto.mealType ?? record.mealType,
+        foodName: updateDto.foodName ?? record.foodName,
+        foodDescription: updateDto.foodDescription ?? record.foodDescription,
+        weightGrams: updateDto.weightGrams ?? record.weightGrams,
+        portionDescription: updateDto.portionDescription ?? record.portionDescription,
+        estimatedCalories: updateDto.estimatedCalories ?? record.estimatedCalories,
+        proteinGrams: updateDto.proteinGrams ?? record.proteinGrams,
+        carbohydrateGrams: updateDto.carbohydrateGrams ?? record.carbohydrateGrams,
+        fatGrams: updateDto.fatGrams ?? record.fatGrams,
+        fiberGrams: updateDto.fiberGrams ?? record.fiberGrams,
+        sugarGrams: updateDto.sugarGrams ?? record.sugarGrams,
+        sodiumMg: updateDto.sodiumMg ?? record.sodiumMg,
+        additionalNutrition: updateDto.additionalNutrition ?? record.additionalNutrition,
+        mealTime: updateDto.mealTime ? new Date(updateDto.mealTime) : record.mealTime,
+        imageUrl: updateDto.imageUrl ?? record.imageUrl,
+        notes: updateDto.notes ?? record.notes,
+      }, { transaction: t });
+
+      // 记录活动日志
+      await this.activityLogModel.create({
+        userId,
+        action: 'diet_record_updated',
+        details: {
+          recordId: record.id,
+          foodName: record.foodName,
+          changes: updateDto,
+        },
+      }, { transaction: t });
+
+      await t.commit();
+
+      return this.mapDietRecordToDto(record)
+    } catch (e) {
+      await t.rollback();
+      this.logger.error(`updateDietRecord error: ${e instanceof Error ? e.message : String(e)}`);
+      throw e;
+    }
+  }
+
+  /**
+   * 删除饮食记录
+   */
+  async deleteDietRecord(userId: string, recordId: number): Promise<boolean> {
+    const t = await this.sequelize.transaction();
+    try {
+      const record = await this.userDietHistoryModel.findOne({
+        where: { id: recordId, userId, deleted: false },
+        transaction: t,
+      });
+
+      if (!record) {
+        return false;
+      }
+
+      // 软删除
+      await record.update({ deleted: true }, { transaction: t });
+
+      // 记录活动日志
+      await this.activityLogModel.create({
+        userId,
+        action: 'diet_record_deleted',
+        details: {
+          recordId: record.id,
+          foodName: record.foodName,
+          mealType: record.mealType,
+        },
+      }, { transaction: t });
+
+      await t.commit();
+      return true;
+    } catch (e) {
+      await t.rollback();
+      this.logger.error(`deleteDietRecord error: ${e instanceof Error ? e.message : String(e)}`);
+      throw e;
+    }
+  }
+
+  /**
+   * 获取最近的营养汇总
+   */
+  async getRecentNutritionSummary(userId: string, mealCount: number = 10): Promise<NutritionSummaryDto> {
+    const records = await this.userDietHistoryModel.findAll({
+      where: { userId, deleted: false },
+      order: [['created_at', 'DESC']],
+      limit: mealCount,
+    });
+
+    if (records.length === 0) {
+      const now = new Date();
+      return {
+        totalCalories: 0,
+        totalProtein: 0,
+        totalCarbohydrates: 0,
+        totalFat: 0,
+        totalFiber: 0,
+        totalSugar: 0,
+        totalSodium: 0,
+        recordCount: 0,
+        dateRange: {
+          start: now,
+          end: now,
+        },
+        averageCaloriesPerMeal: 0,
+        mealTypeDistribution: {},
+      };
+    }
+
+    const totalCalories = records.reduce((sum, r) => sum + (r.estimatedCalories || 0), 0);
+    const totalProtein = records.reduce((sum, r) => sum + (r.proteinGrams || 0), 0);
+    const totalCarbohydrates = records.reduce((sum, r) => sum + (r.carbohydrateGrams || 0), 0);
+    const totalFat = records.reduce((sum, r) => sum + (r.fatGrams || 0), 0);
+    const totalFiber = records.reduce((sum, r) => sum + (r.fiberGrams || 0), 0);
+    const totalSugar = records.reduce((sum, r) => sum + (r.sugarGrams || 0), 0);
+    const totalSodium = records.reduce((sum, r) => sum + (r.sodiumMg || 0), 0);
+
+    // 餐次分布统计
+    const mealTypeDistribution = records.reduce((dist, record) => {
+      const mealType = record.mealType;
+      dist[mealType] = (dist[mealType] || 0) + 1;
+      return dist;
+    }, {} as Record<string, number>);
+
+    return {
+      totalCalories,
+      totalProtein,
+      totalCarbohydrates,
+      totalFat,
+      totalFiber,
+      totalSugar,
+      totalSodium,
+      recordCount: records.length,
+      dateRange: {
+        start: records[records.length - 1].createdAt,
+        end: records[0].createdAt,
+      },
+      averageCaloriesPerMeal: records.length > 0 ? totalCalories / records.length : 0,
+      mealTypeDistribution,
+    };
+  }
+
+  /**
+   * 将数据库记录映射为DTO
+   */
+  private mapDietRecordToDto(record: UserDietHistory): any {
+    return {
+      id: record.id,
+      mealType: record.mealType,
+      foodName: record.foodName,
+      foodDescription: record.foodDescription,
+      weightGrams: record.weightGrams,
+      portionDescription: record.portionDescription,
+      estimatedCalories: record.estimatedCalories,
+      proteinGrams: record.proteinGrams,
+      carbohydrateGrams: record.carbohydrateGrams,
+      fatGrams: record.fatGrams,
+      fiberGrams: record.fiberGrams,
+      sugarGrams: record.sugarGrams,
+      sodiumMg: record.sodiumMg,
+      additionalNutrition: record.additionalNutrition,
+      source: record.source,
+      mealTime: record.mealTime,
+      imageUrl: record.imageUrl,
+      aiAnalysisResult: record.aiAnalysisResult,
+      notes: record.notes,
+      createdAt: record.createdAt,
+      updatedAt: record.updatedAt,
+    };
+  }
+}

src/users/dto/diet-record.dto.ts

@@ -351,6 +351,12 @@ export class NutritionSummaryDto {
     start: Date;
     end: Date;
   };
+
+  @ApiProperty({ description: '平均每餐热量' })
+  averageCaloriesPerMeal: number;
+
+  @ApiProperty({ description: '餐次类型分布', example: { 'breakfast': 5, 'lunch': 3, 'dinner': 2 } })
+  mealTypeDistribution: Record<string, number>;
 }
 
 export class DietAnalysisResponseDto {

src/users/users.controller.ts

@@ -25,7 +25,6 @@ import { ApiOperation, ApiBody, ApiResponse, ApiTags, ApiQuery } from '@nestjs/s
 import { UpdateUserDto, UpdateUserResponseDto } from './dto/update-user.dto';
 import { AppleLoginDto, AppleLoginResponseDto, RefreshTokenDto, RefreshTokenResponseDto } from './dto/apple-login.dto';
 import { DeleteAccountDto, DeleteAccountResponseDto } from './dto/delete-account.dto';
-import { CreateDietRecordDto, UpdateDietRecordDto, GetDietHistoryQueryDto, DietRecordResponseDto, DietHistoryResponseDto, DietAnalysisResponseDto } from './dto/diet-record.dto';
 import { GuestLoginDto, GuestLoginResponseDto, RefreshGuestTokenDto, RefreshGuestTokenResponseDto } from './dto/guest-login.dto';
 import { AppStoreServerNotificationDto, ProcessNotificationResponseDto } from './dto/app-store-notification.dto';
 import { RestorePurchaseDto, RestorePurchaseResponseDto } from './dto/restore-purchase.dto';
@@ -276,83 +275,6 @@ export class UsersController {
     return this.usersService.restorePurchase(restorePurchaseDto, user.sub, clientIp, userAgent);
   }
 
-  // ==================== 饮食记录相关接口 ====================
-
-  /**
-   * 添加饮食记录
-   */
-  @UseGuards(JwtAuthGuard)
-  @Post('diet-records')
-  @HttpCode(HttpStatus.CREATED)
-  @ApiOperation({ summary: '添加饮食记录' })
-  @ApiBody({ type: CreateDietRecordDto })
-  @ApiResponse({ status: 201, description: '成功添加饮食记录', type: DietRecordResponseDto })
-  async addDietRecord(
-    @Body() createDto: CreateDietRecordDto,
-    @CurrentUser() user: AccessTokenPayload,
-  ): Promise<DietRecordResponseDto> {
-    this.logger.log(`添加饮食记录 - 用户ID: ${user.sub}, 食物: ${createDto.foodName}`);
-    return this.usersService.addDietRecord(user.sub, createDto);
-  }
-
-  /**
-   * 获取饮食记录历史
-   */
-  @UseGuards(JwtAuthGuard)
-  @Get('diet-records')
-  @HttpCode(HttpStatus.OK)
-  @ApiOperation({ summary: '获取饮食记录历史' })
-  @ApiQuery({ name: 'startDate', required: false, description: '开始日期' })
-  @ApiQuery({ name: 'endDate', required: false, description: '结束日期' })
-  @ApiQuery({ name: 'mealType', required: false, description: '餐次类型' })
-  @ApiQuery({ name: 'page', required: false, description: '页码' })
-  @ApiQuery({ name: 'limit', required: false, description: '每页数量' })
-  @ApiResponse({ status: 200, description: '成功获取饮食记录', type: DietHistoryResponseDto })
-  async getDietHistory(
-    @Query() query: GetDietHistoryQueryDto,
-    @CurrentUser() user: AccessTokenPayload,
-  ): Promise<DietHistoryResponseDto> {
-    this.logger.log(`获取饮食记录 - 用户ID: ${user.sub}`);
-    return this.usersService.getDietHistory(user.sub, query);
-  }
-
-  /**
-   * 更新饮食记录
-   */
-  @UseGuards(JwtAuthGuard)
-  @Put('diet-records/:id')
-  @HttpCode(HttpStatus.OK)
-  @ApiOperation({ summary: '更新饮食记录' })
-  @ApiBody({ type: UpdateDietRecordDto })
-  @ApiResponse({ status: 200, description: '成功更新饮食记录', type: DietRecordResponseDto })
-  async updateDietRecord(
-    @Param('id') recordId: string,
-    @Body() updateDto: UpdateDietRecordDto,
-    @CurrentUser() user: AccessTokenPayload,
-  ): Promise<DietRecordResponseDto> {
-    this.logger.log(`更新饮食记录 - 用户ID: ${user.sub}, 记录ID: ${recordId}`);
-    return this.usersService.updateDietRecord(user.sub, parseInt(recordId), updateDto);
-  }
-
-  /**
-   * 删除饮食记录
-   */
-  @UseGuards(JwtAuthGuard)
-  @Delete('diet-records/:id')
-  @HttpCode(HttpStatus.NO_CONTENT)
-  @ApiOperation({ summary: '删除饮食记录' })
-  @ApiResponse({ status: 204, description: '成功删除饮食记录' })
-  async deleteDietRecord(
-    @Param('id') recordId: string,
-    @CurrentUser() user: AccessTokenPayload,
-  ): Promise<void> {
-    this.logger.log(`删除饮食记录 - 用户ID: ${user.sub}, 记录ID: ${recordId}`);
-    const success = await this.usersService.deleteDietRecord(user.sub, parseInt(recordId));
-    if (!success) {
-      throw new NotFoundException('饮食记录不存在');
-    }
-  }
-
   // ==================== 用户活跃记录相关接口 ====================
 
   /**

src/users/users.service.ts

@@ -31,12 +31,12 @@ import { RestorePurchaseDto, RestorePurchaseResponseDto, RestoredPurchaseInfo, A
 import { PurchaseRestoreLog, RestoreStatus, RestoreSource } from './models/purchase-restore-log.model';
 import { BlockedTransaction, BlockReason } from './models/blocked-transaction.model';
 import { UserWeightHistory, WeightUpdateSource } from './models/user-weight-history.model';
-import { UserDietHistory, DietRecordSource, MealType } from './models/user-diet-history.model';
+
 import { ActivityLogsService } from '../activity-logs/activity-logs.service';
 import { UserActivityService } from './services/user-activity.service';
 import { GetUserActivityHistoryResponseDto } from './dto/user-activity.dto';
 import { ActivityActionType, ActivityEntityType } from '../activity-logs/models/activity-log.model';
-import { CreateDietRecordDto, UpdateDietRecordDto, GetDietHistoryQueryDto, DietRecordResponseDto, DietHistoryResponseDto, NutritionSummaryDto } from './dto/diet-record.dto';
+
 
 const DEFAULT_FREE_USAGE_COUNT = 5;
 
@@ -61,8 +61,7 @@ export class UsersService {
     private userProfileModel: typeof UserProfile,
     @InjectModel(UserWeightHistory)
     private userWeightHistoryModel: typeof UserWeightHistory,
-    @InjectModel(UserDietHistory)
-    private userDietHistoryModel: typeof UserDietHistory,
+
     @InjectConnection()
     private sequelize: Sequelize,
     private readonly activityLogsService: ActivityLogsService,
@@ -472,274 +471,15 @@ export class UsersService {
     }
   }
 
-  /**
-   * 添加饮食记录
-   */
-  async addDietRecord(userId: string, createDto: CreateDietRecordDto): Promise<DietRecordResponseDto> {
-    const t = await this.sequelize.transaction();
-    try {
-      const dietRecord = await this.userDietHistoryModel.create({
-        userId,
-        mealType: createDto.mealType,
-        foodName: createDto.foodName,
-        foodDescription: createDto.foodDescription || null,
-        weightGrams: createDto.weightGrams || null,
-        portionDescription: createDto.portionDescription || null,
-        estimatedCalories: createDto.estimatedCalories || null,
-        proteinGrams: createDto.proteinGrams || null,
-        carbohydrateGrams: createDto.carbohydrateGrams || null,
-        fatGrams: createDto.fatGrams || null,
-        fiberGrams: createDto.fiberGrams || null,
-        sugarGrams: createDto.sugarGrams || null,
-        sodiumMg: createDto.sodiumMg || null,
-        additionalNutrition: createDto.additionalNutrition || null,
-        source: createDto.source || DietRecordSource.Manual,
-        mealTime: createDto.mealTime ? new Date(createDto.mealTime) : null,
-        imageUrl: createDto.imageUrl || null,
-        aiAnalysisResult: createDto.aiAnalysisResult || null,
-        notes: createDto.notes || null,
-        deleted: false,
-      }, { transaction: t });
 
-      await t.commit();
 
-      // 记录活动日志
-      await this.activityLogsService.record({
-        userId,
-        entityType: ActivityEntityType.USER_PROFILE,
-        entityId: userId,
-        action: ActivityActionType.UPDATE,
-        changes: { diet_record_added: dietRecord.id },
-        metadata: {
-          source: createDto.source || 'manual',
-          mealType: createDto.mealType,
-          foodName: createDto.foodName
-        },
-      });
 
-      return this.mapDietRecordToDto(dietRecord);
-    } catch (e) {
-      await t.rollback();
-      this.logger.error(`addDietRecord error: ${e instanceof Error ? e.message : String(e)}`);
-      throw e;
-    }
-  }
 
-  /**
-   * 通过视觉识别添加饮食记录
-   */
-  async addDietRecordByVision(userId: string, dietData: CreateDietRecordDto): Promise<DietRecordResponseDto> {
-    return this.addDietRecord(userId, {
-      ...dietData,
-      source: DietRecordSource.Vision
-    });
-  }
 
-  /**
-   * 获取饮食记录历史
-   */
-  async getDietHistory(userId: string, query: GetDietHistoryQueryDto): Promise<DietHistoryResponseDto> {
-    const where: any = { userId, deleted: false };
 
-    // 日期过滤
-    if (query.startDate || query.endDate) {
-      where.createdAt = {} as any;
-      if (query.startDate) where.createdAt[Op.gte] = new Date(query.startDate);
-      if (query.endDate) where.createdAt[Op.lte] = new Date(query.endDate);
-    }
 
-    // 餐次类型过滤
-    if (query.mealType) {
-      where.mealType = query.mealType;
-    }
 
-    const limit = Math.min(100, Math.max(1, query.limit || 20));
-    const page = Math.max(1, query.page || 1);
-    const offset = (page - 1) * limit;
 
-    const { rows, count } = await this.userDietHistoryModel.findAndCountAll({
-      where,
-      order: [['created_at', 'DESC']],
-      limit,
-      offset,
-    });
-
-    const totalPages = Math.ceil(count / limit);
-
-    return {
-      records: rows.map(record => this.mapDietRecordToDto(record)),
-      total: count,
-      page,
-      limit,
-      totalPages,
-    };
-  }
-
-  /**
-   * 更新饮食记录
-   */
-  async updateDietRecord(userId: string, recordId: number, updateDto: UpdateDietRecordDto): Promise<DietRecordResponseDto> {
-    const t = await this.sequelize.transaction();
-    try {
-      const record = await this.userDietHistoryModel.findOne({
-        where: { id: recordId, userId, deleted: false },
-        transaction: t,
-      });
-
-      if (!record) {
-        throw new NotFoundException('饮食记录不存在');
-      }
-
-      // 更新字段
-      if (updateDto.mealType !== undefined) record.mealType = updateDto.mealType;
-      if (updateDto.foodName !== undefined) record.foodName = updateDto.foodName;
-      if (updateDto.foodDescription !== undefined) record.foodDescription = updateDto.foodDescription;
-      if (updateDto.weightGrams !== undefined) record.weightGrams = updateDto.weightGrams;
-      if (updateDto.portionDescription !== undefined) record.portionDescription = updateDto.portionDescription;
-      if (updateDto.estimatedCalories !== undefined) record.estimatedCalories = updateDto.estimatedCalories;
-      if (updateDto.proteinGrams !== undefined) record.proteinGrams = updateDto.proteinGrams;
-      if (updateDto.carbohydrateGrams !== undefined) record.carbohydrateGrams = updateDto.carbohydrateGrams;
-      if (updateDto.fatGrams !== undefined) record.fatGrams = updateDto.fatGrams;
-      if (updateDto.fiberGrams !== undefined) record.fiberGrams = updateDto.fiberGrams;
-      if (updateDto.sugarGrams !== undefined) record.sugarGrams = updateDto.sugarGrams;
-      if (updateDto.sodiumMg !== undefined) record.sodiumMg = updateDto.sodiumMg;
-      if (updateDto.additionalNutrition !== undefined) record.additionalNutrition = updateDto.additionalNutrition;
-      if (updateDto.mealTime !== undefined) record.mealTime = updateDto.mealTime ? new Date(updateDto.mealTime) : null;
-      if (updateDto.imageUrl !== undefined) record.imageUrl = updateDto.imageUrl;
-      if (updateDto.aiAnalysisResult !== undefined) record.aiAnalysisResult = updateDto.aiAnalysisResult;
-      if (updateDto.notes !== undefined) record.notes = updateDto.notes;
-
-      await record.save({ transaction: t });
-      await t.commit();
-
-      // 记录活动日志
-      await this.activityLogsService.record({
-        userId,
-        entityType: ActivityEntityType.USER_PROFILE,
-        entityId: userId,
-        action: ActivityActionType.UPDATE,
-        changes: { diet_record_updated: recordId },
-        metadata: { updateDto },
-      });
-
-      return this.mapDietRecordToDto(record);
-    } catch (e) {
-      await t.rollback();
-      this.logger.error(`updateDietRecord error: ${e instanceof Error ? e.message : String(e)}`);
-      throw e;
-    }
-  }
-
-  /**
-   * 删除饮食记录
-   */
-  async deleteDietRecord(userId: string, recordId: number): Promise<boolean> {
-    const t = await this.sequelize.transaction();
-    try {
-      const record = await this.userDietHistoryModel.findOne({
-        where: { id: recordId, userId, deleted: false },
-        transaction: t,
-      });
-
-      if (!record) {
-        return false;
-      }
-
-      record.deleted = true;
-      await record.save({ transaction: t });
-      await t.commit();
-
-      // 记录活动日志
-      await this.activityLogsService.record({
-        userId,
-        entityType: ActivityEntityType.USER_PROFILE,
-        entityId: userId,
-        action: ActivityActionType.DELETE,
-        changes: { diet_record_deleted: recordId },
-        metadata: { foodName: record.foodName, mealType: record.mealType },
-      });
-
-      return true;
-    } catch (e) {
-      await t.rollback();
-      this.logger.error(`deleteDietRecord error: ${e instanceof Error ? e.message : String(e)}`);
-      throw e;
-    }
-  }
-
-  /**
- * 获取最近N顿饮食的营养汇总
- */
-  async getRecentNutritionSummary(userId: string, mealCount: number = 10): Promise<NutritionSummaryDto> {
-    const records = await this.userDietHistoryModel.findAll({
-      where: { userId, deleted: false },
-      order: [['created_at', 'DESC']],
-      limit: mealCount,
-    });
-
-    if (records.length === 0) {
-      throw new NotFoundException('暂无饮食记录');
-    }
-
-    const summary = records.reduce((acc, record) => {
-      acc.totalCalories += record.estimatedCalories || 0;
-      acc.totalProtein += record.proteinGrams || 0;
-      acc.totalCarbohydrates += record.carbohydrateGrams || 0;
-      acc.totalFat += record.fatGrams || 0;
-      acc.totalFiber += record.fiberGrams || 0;
-      acc.totalSugar += record.sugarGrams || 0;
-      acc.totalSodium += record.sodiumMg || 0;
-      return acc;
-    }, {
-      totalCalories: 0,
-      totalProtein: 0,
-      totalCarbohydrates: 0,
-      totalFat: 0,
-      totalFiber: 0,
-      totalSugar: 0,
-      totalSodium: 0,
-    });
-
-    const oldestRecord = records[records.length - 1];
-    const newestRecord = records[0];
-
-    return {
-      ...summary,
-      recordCount: records.length,
-      dateRange: {
-        start: oldestRecord.createdAt,
-        end: newestRecord.createdAt,
-      },
-    };
-  }
-
-  /**
-   * 将数据库模型转换为DTO
-   */
-  private mapDietRecordToDto(record: UserDietHistory): DietRecordResponseDto {
-    return {
-      id: record.id,
-      mealType: record.mealType,
-      foodName: record.foodName,
-      foodDescription: record.foodDescription || undefined,
-      weightGrams: record.weightGrams || undefined,
-      portionDescription: record.portionDescription || undefined,
-      estimatedCalories: record.estimatedCalories || undefined,
-      proteinGrams: record.proteinGrams || undefined,
-      carbohydrateGrams: record.carbohydrateGrams || undefined,
-      fatGrams: record.fatGrams || undefined,
-      fiberGrams: record.fiberGrams || undefined,
-      sugarGrams: record.sugarGrams || undefined,
-      sodiumMg: record.sodiumMg || undefined,
-      additionalNutrition: record.additionalNutrition || undefined,
-      source: record.source,
-      mealTime: record.mealTime || undefined,
-      imageUrl: record.imageUrl || undefined,
-      notes: record.notes || undefined,
-      createdAt: record.createdAt,
-      updatedAt: record.updatedAt,
-    };
-  }
 
   /**
    * Apple 登录