import { Controller, Post, Body, UseGuards, Request, HttpException, HttpStatus, Get } from '@nestjs/common';
import { AuthService } from './auth.service';
import { AuthCredentialsDto } from './dto/auth-credentials.dto';
import { AuthRegisterDto } from './dto/auth-register.dto';
import { JwtAuthGuard } from './guards/jwt-auth.guard';

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

  @Post('login')
  async login(@Body() authCredentialsDto: AuthCredentialsDto) {
    try {
      const user = await this.authService.validateUser(
        authCredentialsDto.email,
        authCredentialsDto.password,
      );
      const result = await this.authService.login(user);
      return {
        access_token: result.accessToken,
        user: result.user,
      };
    } catch (error) {
      throw new HttpException(
        {
          status: HttpStatus.UNAUTHORIZED,
          error: 'Invalid credentials',
        },
        HttpStatus.UNAUTHORIZED,
      );
    }
  }

  @Post('register')
  async register(@Body() authRegisterDto: AuthRegisterDto) {
    try {
      const result = await this.authService.register(authRegisterDto);
      return {
        access_token: result.accessToken,
        user: result.user,
      };
    } catch (error) {
      if (error.code === 'ER_DUP_ENTRY') {
        throw new HttpException(
          {
            status: HttpStatus.CONFLICT,
            error: 'User with this email already exists',
          },
          HttpStatus.CONFLICT,
        );
      }
      throw new HttpException(
        {
          status: HttpStatus.BAD_REQUEST,
          error: 'Registration failed',
        },
        HttpStatus.BAD_REQUEST,
      );
    }
  }

  @Get('me')
  @UseGuards(JwtAuthGuard)
  async getProfile(@Request() req) {
    try {
      return await this.authService.getProfile(req.user.id);
    } catch (error) {
      throw new HttpException(
        {
          status: HttpStatus.NOT_FOUND,
          error: 'User not found',
        },
        HttpStatus.NOT_FOUND,
      );
    }
  }
}