import { Controller, Get, Post, Body, Patch, Param, Delete, UseGuards, HttpCode } from '@nestjs/common';
import { ApiTags, ApiOperation, ApiResponse, ApiBearerAuth } from '@nestjs/swagger';
import { UserService } from './user.service';
import { CreateUserDto, UpdateUserDto } from './dto/user.dto';
import type { CurrentUserData } from '../auth/decorators/current-user.decorator';
import { CurrentUser } from '../auth/decorators/current-user.decorator';
import { Roles } from '../auth/guards/roles.decorator';

@ApiTags('用户管理')
@ApiBearerAuth()
@Controller('users')
export class UserController {
  constructor(private readonly userService: UserService) {}

  @Post()
  @HttpCode(200)
  @Roles('admin')
  @ApiOperation({ summary: '创建用户（管理员）' })
  @ApiResponse({ status: 200, description: '创建成功' })
  async create(@Body() createUserDto: CreateUserDto) {
    const data = await this.userService.create(createUserDto);
    return {
      code: 0,
      message: '创建成功',
      data,
    };
  }

  @Get()
  @Roles('admin')
  @ApiOperation({ summary: '获取所有用户（管理员）' })
  @ApiResponse({ status: 200, description: '获取成功' })
  async findAll() {
    const list = await this.userService.findAll();
    return {
      code: 0,
      message: '获取成功',
      data: {
        list,
        total: list.length,
      },
    };
  }

  @Get('profile')
  @ApiOperation({ summary: '获取当前用户信息' })
  @ApiResponse({ status: 200, description: '获取成功' })
  async getProfile(@CurrentUser() user: CurrentUserData) {
    const data = await this.userService.getUserProfile(user.userId);
    return {
      code: 0,
      message: '获取成功',
      data,
    };
  }

  @Get(':id')
  @Roles('admin')
  @ApiOperation({ summary: '根据ID获取用户（管理员）' })
  @ApiResponse({ status: 200, description: '获取成功' })
  @ApiResponse({ status: 404, description: '用户不存在' })
  async findOne(@Param('id') id: string) {
    const data = await this.userService.findById(+id);
    return {
      code: 0,
      message: '获取成功',
      data,
    };
  }

  @Patch('profile')
  @ApiOperation({ summary: '更新当前用户信息' })
  @ApiResponse({ status: 200, description: '更新成功' })
  async updateProfile(@CurrentUser() user: CurrentUserData, @Body() updateUserDto: UpdateUserDto) {
    const data = await this.userService.update(user.userId, updateUserDto);
    return {
      code: 0,
      message: '更新成功',
      data,
    };
  }

  @Patch(':id')
  @Roles('admin')
  @ApiOperation({ summary: '更新用户信息（管理员）' })
  @ApiResponse({ status: 200, description: '更新成功' })
  @ApiResponse({ status: 404, description: '用户不存在' })
  async update(@Param('id') id: string, @Body() updateUserDto: UpdateUserDto) {
    const data = await this.userService.update(+id, updateUserDto);
    return {
      code: 0,
      message: '更新成功',
      data,
    };
  }

  @Delete(':id')
  @Roles('admin')
  @ApiOperation({ summary: '删除用户（管理员）' })
  @ApiResponse({ status: 200, description: '删除成功' })
  @ApiResponse({ status: 404, description: '用户不存在' })
  async remove(@Param('id') id: string) {
    await this.userService.remove(+id);
    return {
      code: 0,
      message: '删除成功',
    };
  }
}