const log4js = require('log4js');

const logger = log4js.getLogger();
const sqlLogger = log4js.getLogger('SQL');

// 用户日志
// 按 用户ID 和 登录日期 区分
const pino = require('pino');
const path = require('path');
const fs = require('fs');
const userLoggers = {}; // Store user loggers

function getUserLogger(_userId) {
  const userId = _userId.replace('+', '');
  if (userLoggers[userId]) {
    return userLoggers[userId];
  }

  const today = new Date(new Date().getTime() + 8 * 60 * 60 * 1000).toISOString().slice(0, 10); // YYYY-MM-DD

  const logDirectory = path.join(__dirname, '../logs');
  const logFile = path.join(logDirectory, `user.${userId}.${today}.log`);

  // Ensure the logs directory exists
  fs.mkdirSync(logDirectory, { recursive: true });

  // Create or open the log file stream
  // const logStream = fs.createWriteStream(logFile, { flags: 'a' }); // 'a' for append mode
  const dest = pino.destination(logFile);

  const logger = pino(
    {
      level: 'info',
      formatters: {
        level: label => {
          return { level: label };
        },
      },
      // timestamp: pino.stdTimeFunctions.isoTime,
      timestamp: () => {
        return `,"time":"${new Date(new Date().getTime() + 8 * 60 * 60 * 1000).toISOString()}"`; // GMT+8
      },
    },
    dest,
  );

  userLoggers[userId] = logger;
  return logger;
}

module.exports = logger;
module.exports.logger = logger;
module.exports.sqlLogger = sqlLogger;
module.exports.getUserLogger = getUserLogger;
module.exports.default = logger;