import { Controller, Post, Body, Get, UseGuards, HttpCode, HttpStatus } from '@nestjs/common';
import { ApiBearerAuth, ApiOperation, ApiResponse, ApiTags } from '@nestjs/swagger';
import { AuthService } from './auth.service.js';
import { RegisterDto } from './dto/register.dto.js';
import { LoginDto } from './dto/login.dto.js';
import { AuthResponseDto, UserResponseDto } from './dto/auth-response.dto.js';
import { JwtAuthGuard } from '../common/guards/jwt-auth.guard.js';
import { CurrentUser } from '../common/decorators/current-user.decorator.js';
import type { JwtPayload } from '../common/decorators/current-user.decorator.js';
import { Public } from '../common/decorators/public.decorator.js';

@ApiTags('Auth')
@Controller('auth')
export class AuthController {
  constructor(private authService: AuthService) {}

  @Public()
  @Post('register')
  @ApiOperation({ summary: 'Register a new user' })
  @ApiResponse({ status: 201, description: 'User registered successfully', type: AuthResponseDto })
  @ApiResponse({ status: 409, description: 'Email already registered' })
  async register(@Body() registerDto: RegisterDto): Promise<{ data: AuthResponseDto }> {
    const result = await this.authService.register(registerDto);
    return { data: result };
  }

  @Public()
  @Post('login')
  @HttpCode(HttpStatus.OK)
  @ApiOperation({ summary: 'Login with email and password' })
  @ApiResponse({ status: 200, description: 'Login successful', type: AuthResponseDto })
  @ApiResponse({ status: 401, description: 'Invalid credentials' })
  async login(@Body() loginDto: LoginDto): Promise<{ data: AuthResponseDto }> {
    const result = await this.authService.login(loginDto);
    return { data: result };
  }

  @UseGuards(JwtAuthGuard)
  @ApiBearerAuth()
  @Get('me')
  @ApiOperation({ summary: 'Get current user profile' })
  @ApiResponse({ status: 200, description: 'Current user profile', type: UserResponseDto })
  @ApiResponse({ status: 401, description: 'Unauthorized' })
  async getProfile(@CurrentUser() user: JwtPayload): Promise<{ data: UserResponseDto }> {
    const profile = await this.authService.getProfile(user.userId);
    return { data: profile };
  }
}