import { NestFactory } from '@nestjs/core';
import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);

  app.enableCors({
    origin: ['https://longde.cloud', 'http://localhost:4321'],
    methods: ['GET', 'POST', 'PUT', 'DELETE', 'PATCH'],
    credentials: true,
  });

  const config = new DocumentBuilder()
    .setTitle('知习 API')
    .setDescription('知习 AI-first 系统化学习产品后端 API（v0.1）')
    .setVersion('0.1.0')
    .addTag('health', '服务健康检查')
    .addTag('auth', '用户认证')
    .addTag('users', '用户管理')
    .addTag('knowledge-base', '知识库')
    .addTag('knowledge-items', '知识点')
    .addTag('document-import', '资料导入')
    .addTag('learning-session', '学习会话')
    .addTag('active-recall', '主动回忆')
    .addTag('ai-analysis', 'AI 分析')
    .addTag('review', '复习管理')
    .addTag('focus-items', '待巩固项')
    .addTag('learning-activity', '学习活跃')
    .addTag('notifications', '消息通知')
    .addTag('feedback', '用户反馈')
    .addTag('waitlist', '等待名单')
    .build();

  const document = SwaggerModule.createDocument(app, config);
  SwaggerModule.setup('api-docs', app, document, {
    swaggerOptions: { persistAuthorization: true },
    customCss: '.swagger-ui .topbar { display: none }',
    customSiteTitle: '知习 API 文档',
  });

  app.getHttpAdapter().get('/api-docs-json', (_req: any, res: any) => {
    res.json(document);
  });

  const port = process.env.PORT ?? 3000;
  await app.listen(port);
  console.log(`[API] Server running on http://localhost:${port}`);
  console.log(`[API] Swagger docs at http://localhost:${port}/api-docs`);
}
bootstrap();