/**
 * Created by nuintun on 2015/12/4.
 */

'use strict';

var Emulator = require('./emulator');

var emulator;

// thread
process.on('message', function (message){
  if (message.action === 'stop') {
    if (emulator) {
      emulator.stop();
    }

    process.exit();

    return;
  }

  if (message.action === 'start') {
    var stream;
    var project = message.project;

    if (emulator) {
      emulator.stop();
    }

    emulator = new Emulator({
      cwd: project.path,
      command: project.command.value
    });

    stream = emulator.start();

    stream.stdout.on('data', function (data){
      process.send({
        event: 'data',
        project: project,
        data: data.toString()
      });
    });

    stream.stderr.on('data', function (error){
      emulator.stop();
      process.send({
        event: 'error',
        project: project,
        data: error.toString()
      });
    });

    stream.on('close', function (signal){
      emulator.stop();
      process.send({
        event: 'close',
        project: project,
        data: signal.toString()
      });
    });
  }
});