import express from 'express'
import { loadConfig, isDevMode, getPort } from './config.js'
import { logError } from './logger.js'
import router from './routes.js'

const app = express();

app.use(express.json({ limit: '50mb' }));
app.use(express.urlencoded({ extended: true, limit: '50mb' }));

app.use((req, res, next) => {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
  res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization, X-API-Key, anthropic-version');
  
  if (req.method === 'OPTIONS') {
    return res.sendStatus(200);
  }
  next();
});

app.use(router);

app.get('/', (req, res) => {
  res.redirect('https://www.bilibili.com/video/BV1SMH5zfEwe/?spm_id_from=333.1007.tianma.1-1-1.click&vd_source=1f3b8eb28230105c578a443fa6481550')
})


// 错误处理中间件
app.use((err, req, res, next) => {
  logError('未处理的错误', err);
  res.status(500).json({
    error: '内部服务器错误',
    message: isDevMode() ? err.message : undefined
  });
});

(async () => {
  try {
    loadConfig()
    const PORT = getPort()

    const server = app.listen(PORT)
    .on('listening', () => {
      console.log(`服务器运行在 http://localhost:${PORT}`)
    })
    .on('error', (err) => {
      if (err.code === 'EADDRINUSE') {
        console.error(`\n${'='.repeat(80)}`);
        console.error(`错误: 端口 ${PORT} 已被占用!`);
        console.error('');
        console.error('请选择以下选项之一:');
        console.error(`  1. 停止使用端口 ${PORT} 的进程:`);
        console.error(`     lsof -ti:${PORT} | xargs kill`);
        console.error('');
        console.error('  2. 使用环境变量更改端口:');
        console.error('     export PORT=8080');
        console.error(`${'='.repeat(80)}\n`);
        process.exit(1);
      } else {
        logError('启动服务器失败', err);
        process.exit(1);
      }
    });
  } catch (error) {
    logError('启动服务器失败', error);
    process.exit(1);
  }
})();