var browserify = require('browserify');
var gulp = require('gulp');
var source = require('vinyl-source-stream');
var buffer = require('vinyl-buffer');
var gutil = require('gulp-util');
var uglify = require('gulp-uglify');
var sourcemaps = require('gulp-sourcemaps');
var reactify = require('reactify');
var bower = require('gulp-bower');

gulp.task('javascript', function () {
  // set up the browserify instance on a task basis
  var b = browserify({
    entries: './script.js',
    debug: true,
    // defining transforms here will avoid crashing your stream
    transform: [reactify]
  });

  return b.bundle()
    .pipe(source('out.js'))
    .pipe(buffer())
    .pipe(sourcemaps.init({loadMaps: true}))
        // Add transformation tasks to the pipeline here.
        .pipe(uglify())
        .on('error', gutil.log)
    .pipe(sourcemaps.write('./'))
    .pipe(gulp.dest('./'));
});


gulp.task('bower', function() {
  return bower()
    .pipe(gulp.dest('libs/'));
});

gulp.task('default', ['javascript', 'bower']);