import archiver from 'archiver';
import moment from 'moment';
import fs from 'fs';
import path from 'path';
import logger from '../../utils/logger';
import { tmpdir } from '../../utils/util';

/**
 * 打包当天的日志
 */
async function loggerPack(): Promise<string> {
  const logPath = logger.geLogPathByTime(new Date());

  if (!fs.existsSync(logPath)) {
    return '';
  }

  const dirname = await tmpdir();
  const dist = path.join(dirname, `${moment().format('YYYY-MM-DD')}.zip`);

  await new Promise<void>((resolve, reject) => {
    const output = fs.createWriteStream(dist);
    const archive = archiver('zip', {
      zlib: { level: 9 }, // Sets the compression level.
    });

    output.on('close', function () {
      resolve();
    });

    archive.on('error', function (err) {
      reject(err);
    });

    archive.directory(logPath, false);

    archive.pipe(output);

    archive.finalize();
  });

  return dist;
}

export default loggerPack;