'use strict';

var node;
var gulp = require('gulp');
var spawn = require('child_process').spawn;

var JS_SERVER_BIN_FILE = './bin/server.js';
var JS_SERVER_SOURCE = './js/server/**/*.js';


gulp.task('supervise', function() {
    gulp.watch(JS_SERVER_SOURCE, function() {
        if (node) node.kill();

        node = spawn('node', [JS_SERVER_BIN_FILE], {stdio: 'inherit'});
        node.on('close', function (code) {
            if (code === 8) {
                console.log('Error detected, waiting for changes...');
            }
        });
    });
});


process.on('exit', function() {
    if (node) node.kill()
});