// browserify
var browserify = require('browserify');
var es6ify = require('es6ify');
// gulp stuff
var gulp = require('gulp');
var livereload = require('gulp-livereload');
var source = require('vinyl-source-stream');
var jshint = require('gulp-jshint');
var livereload = require('gulp-livereload');
var watch = require('gulp-watch');
var uglify = require('gulp-uglify');
var streamify = require('gulp-streamify');
// stuff
var map = require('map-stream');
// static server
var http = require('http');
var ecstatic = require('ecstatic');

// error log for browserify
var errLog = function (err) {
  if (err) {
    gutil.log(err.toString());
  }
};

// build scripts
gulp.task('scripts', function () {
  return browserify('./src/js/main.js')
    .transform(es6ify)
    .bundle()
    .pipe(source('main.js'))
    .pipe(streamify(uglify()))
    .pipe(gulp.dest('./dist/js'));
});

// watch scripts
gulp.task('watch-scripts', function () {
  return gulp.src('./src/js/**/*.js')
    .pipe(watch({name: 'JS'}))
    .pipe(jshint('.jshintrc'))
    .pipe(jshint.reporter('default'))
    .pipe(map(function () {
      browserify('./src/js/main.js')
        .transform(es6ify)
        .bundle({debug: true}, errLog)
        .pipe(source('main.js'))
        .pipe(gulp.dest('./dist/js'))
        .pipe(livereload());
    }));
});

gulp.task('server', function () {
  http.createServer(ecstatic({root: __dirname})).listen(8080);
  gutil.log(gutil.colors.blue('HTTP server listening on port 8080'));
});

gulp.task('default', ['server', 'watch-scripts']);