const { Client } = require('ssh2');
const fs = require('fs');
const path = require('path');

const conn = new Client();
const localH5Dir = path.join(__dirname, 'dist', 'build', 'h5');
const remoteH5Dir = '/www/huishou/dist/build/h5';

function uploadFile(sftp, localPath, remotePath, callback) {
  fs.readFile(localPath, (err, content) => {
    if (err) { callback(err); return; }
    sftp.mkdir(path.dirname(remotePath), { recursive: true }, (mkdirErr) => {
      if (mkdirErr && mkdirErr.code !== 4) { callback(mkdirErr); return; }
      const writeStream = sftp.createWriteStream(remotePath);
      writeStream.write(content);
      writeStream.end();
      writeStream.on('close', () => callback(null));
      writeStream.on('error', (e) => callback(e));
    });
  });
}

function uploadDirectory(sftp, localDir, remoteDir, callback) {
  fs.readdir(localDir, { withFileTypes: true }, (err, entries) => {
    if (err) { callback(err); return; }
    let completed = 0;
    let hasError = false;
    entries.forEach(entry => {
      const localPath = path.join(localDir, entry.name);
      const remotePath = path.join(remoteDir, entry.name);
      if (entry.isDirectory()) {
        uploadDirectory(sftp, localPath, remotePath, (dirErr) => {
          if (dirErr) { hasError = true; callback(dirErr); }
          completed++;
          if (completed === entries.length && !hasError) callback(null);
        });
      } else {
        uploadFile(sftp, localPath, remotePath, (fileErr) => {
          if (fileErr) { hasError = true; callback(fileErr); }
          completed++;
          if (completed === entries.length && !hasError) callback(null);
        });
      }
    });
    if (entries.length === 0) callback(null);
  });
}

conn.on('ready', () => {
  console.log('=== 删除旧的h5目录 ===');
  conn.exec(`rm -rf ${remoteH5Dir}`, (err) => {
    if (err) { console.log('ERR:', err); }
    console.log('\n=== 上传H5目录 ===');
    conn.sftp((err2, sftp) => {
      if (err2) { console.log('SFTP ERR:', err2); conn.end(); return; }
      uploadDirectory(sftp, localH5Dir, remoteH5Dir, (uploadErr) => {
        if (uploadErr) {
          console.log('上传失败:', uploadErr);
          sftp.end();
          conn.end();
          return;
        }
        sftp.end();
        console.log('H5目录上传成功');
        console.log('\n=== 验证 ===');
        conn.exec(`ls -la ${remoteH5Dir}/`, (err3, stream3) => {
          if (err3) { console.log('ERR3:', err3); conn.end(); return; }
          stream3.on('data', (d) => console.log(d.toString()));
          stream3.on('close', () => {
            console.log('\n=== 重启Nginx ===');
            conn.exec('/www/server/nginx/sbin/nginx -s reload', (err4, stream4) => {
              if (err4) { console.log('ERR4:', err4); }
              else { stream4.on('data', (d) => console.log(d.toString())); }
              stream4.on('close', () => {
                setTimeout(() => {
                  console.log('\n=== 测试 ===');
                  conn.exec('curl -s -I https://hs.yifenbao.cn/assets/index-B5v3elQl.js', (err5, stream5) => {
                    if (err5) { console.log('ERR5:', err5); }
                    else { stream5.on('data', (d) => console.log(d.toString())); }
                    stream5.on('close', () => {
                      console.log('\n=== 完成 ===');
                      conn.end();
                    });
                  });
                }, 2000);
              });
            });
          });
        });
      });
    });
  });
});

conn.connect({ host: 'hs.yifenbao.cn', port: 22, username: 'root', password: 'Torch1112' });