/**
 * ログユーティリティ
 */

const LOG_LEVELS = {
  debug: 0,
  info: 1,
  warn: 2,
  error: 3,
};

let currentLogLevel =
  LOG_LEVELS[process.env.LOG_LEVEL?.toLowerCase() || "info"] || 1;

/**
 * ログ出力
 * @param {string} level - ログレベル (debug, info, warn, error)
 * @param {string} message - ログメッセージ
 * @param {*} data - 追加データ
 */
function log(level, message, data = null) {
  const levelValue = LOG_LEVELS[level] || LOG_LEVELS.info;
  if (levelValue < currentLogLevel) return;

  const timestamp = new Date().toISOString();
  const prefix = `[${timestamp}] [${level.toUpperCase()}]`;

  if (data) {
    console.log(`${prefix} ${message}`, data);
  } else {
    console.log(`${prefix} ${message}`);
  }
}

export const Logger = {
  debug: (msg, data) => log("debug", msg, data),
  info: (msg, data) => log("info", msg, data),
  warn: (msg, data) => log("warn", msg, data),
  error: (msg, data) => log("error", msg, data),
};