import {
  Controller,
  Post,
  Get,
  Body,
  HttpCode,
  HttpStatus,
} from '@nestjs/common';
import { ApiTags, ApiOperation, ApiBearerAuth } from '@nestjs/swagger';
import { AuthService } from './auth.service';
import { CurrentUser } from './decorators/current-user.decorator';
import { Public } from './decorators/public.decorator';
import { User } from '@coursecraft/database';
import { ExchangeTokenDto } from './dto/exchange-token.dto';

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

  @Public()
  @Post('exchange')
  @HttpCode(HttpStatus.OK)
  @ApiOperation({ summary: 'Exchange Supabase token for API token' })
  async exchangeToken(@Body() dto: ExchangeTokenDto) {
    const user = await this.authService.validateSupabaseToken(dto.supabaseToken);
    return this.authService.generateTokens(user);
  }

  @Get('me')
  @ApiBearerAuth()
  @ApiOperation({ summary: 'Get current user' })
  async getCurrentUser(@CurrentUser() user: User) {
    return {
      id: user.id,
      email: user.email,
      name: user.name,
      avatarUrl: user.avatarUrl,
      subscriptionTier: user.subscriptionTier,
      createdAt: user.createdAt,
    };
  }
}