module.exports = function(gulp, $) {
  var isProduction = !!($.util.env.prod);

  var app = $.assemble();

  var minOptions = {
    collapseWhitespace: true,
    removeComments: true
  };

  gulp.task('assemble', function() {
    $.util.log($.util.colors.yellow('-- starting gulp assemble --'));

    app.layouts('src/html/layouts/**/*.hbs');
    app.partials('src/html/components/**/*.hbs');
    app.pages('src/html/pages/**/*.hbs');

    return app
      .toStream('pages')

      .pipe($.debug({
        title: 'assemble task:'
      }))

      .pipe(app.renderFile({
        'flatten': true
      }))
      .on('error', console.log)

      .pipe($.rename({
        extname: '.html'
      }))

      .pipe($.flatten())

      .pipe($.if(isProduction, $.htmlmin(minOptions), $.jsbeautifier()))

      // Problem line
      .pipe(app.dest('./'));
  });
};