function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

const winstonLogger = require('./winstonLogger');
/**
 *
 */


class Logger {
  /**
   *
   * @param {*} name
   * @param {*} env
   */
  constructor(name, env = {}) {
    const {
      K8S_POD_NAME: podName,
      K8S_POD_NAMESPACE: podNamespace,
      K8S_POD_IP: podIp,
      K8S_NODE_NAME: nodeName,
      LOG_LEVEL: logLevel,
      NODE_ENV: environment,
      instance
    } = env;

    if (!podName) {
      console.log('Cannot get Kubernetes Pod Name from environment variables. Logs will be stored in the project directory.');
    }

    this.name = name;
    this.env = {
      podName,
      podNamespace,
      podIp,
      nodeName,
      logLevel,
      environment,
      pid: `${process.pid}`
    }; // The file to write the log to.

    const logFilePath = podName ? `/app/logs/${podName}/app.log` : 'app.log';
    this.instance = instance || winstonLogger.createLogger({
      logFilePath,
      logLevel,
      environment
    });
  }
  /**
   *
   */


  createBaseLogMessage() {
    return _objectSpread({
      service: this.name,
      pid: this.env.pid
    }, this.env);
  }
  /**
   * Adds a log entry, provided that the severity is equal or higher to the current service log level.
   * @param {string} severity The severity level of the log
   * @param {string} message The custom message to add to the log
   * @param {*} additionalProperties Additional properties to add to the log
   */


  writeLog(severity, message, additionalProperties = {}) {
    this.instance.log(severity, _objectSpread({}, additionalProperties, this.createBaseLogMessage(), {
      rest: message
    }));
  }
  /**
   *
   * @param {String} message
   * @param {Object} additionalProperties
   */


  debug(message, additionalProperties) {
    this.writeLog('debug', message, additionalProperties);
  }
  /**
   *
   * @param {String} message
   * @param {Object} additionalProperties
   */


  info(message, additionalProperties) {
    this.writeLog('info', message, additionalProperties);
  }
  /**
   *
   * @param {String} message
   * @param {Object} additionalProperties
   */


  warn(message, additionalProperties) {
    this.writeLog('warn', message, additionalProperties);
  }
  /**
   *
   * @param {String} message
   * @param {Object} additionalProperties
   */


  error(message, additionalProperties) {
    this.writeLog('error', message, additionalProperties);
  }

}

module.exports = Logger;