'use strict';

const replaceNewLines = require('./common').replaceNewLines;

// Reference: http://help.sap.com/saphelp_nw74/helpdata/en/48/4f3966e39472d2e10000000a42189c/content.htm

class Trace {
  constructor(env) {
    this._shouldReplaceNewLines = env.runsOnXSA;
  }

  format(entryCtx) {
    const entry = [
      entryCtx.timeCreated.format('MMM DD, YYYY hh:mm:ss A'),
      normalizeField(this, entryCtx.component),
      normalizeField(this, '[' + entryCtx.id + ']'), // instead of Thread Name
      entryCtx.level.toUpperCase() + ':',
      normalizeField(this, entryCtx.message)
    ];

    return entry.join(' ');
  }

  formatNetwork() {
    throw new Error('Trace format does not support network logging');
  }

}

function normalizeField(formatter, input) {
  if (!input) {
    return '';
  }
  return formatter._shouldReplaceNewLines ? replaceNewLines(input) : input;
}

module.exports = Trace;