extends ../layout

block content
  h1= title


  form#movie_form.pure-form(action='/movies', method='post')
    fieldset
      legend Add a Movie
      input(type='text', name='title', placeholder='Title')
      input(type='text', name='studio', placeholder='Studio')
      label
        input(type='checkbox', name='like')
        | Liked?
      button.pure-button.pure-button-primary(type='submit') Add


  table#movie_table.pure-table
    thead
      tr
        th Studio
        th Title
        th Liked?
    tbody
      each movie in movies
        tr(id="movie_#{movie.id}")
          // Yes, `with` is deprecated and frowned upon.
          // Jade used to have partials and this works in lieu of them.
          - with (movie) {
            //- View/Template used on both server and client
            include table_row
          - }


block scripts
  script(src='/javascripts/vendor/jquery.js')
  script(src='/javascripts/vendor/lodash.underscore.js')
  script(src='/javascripts/vendor/backbone.js')
  // Templates exported and precompiled via Viewbridge.
  script(src='/javascripts/templates.js')

  script
    var app = app || {};

    void function() { 'use strict'
      //
      // Model - Movie
      //
      app.Movie = Backbone.Model.extend();

      //
      // Collection - Movies
      //
      app.movies = function() {
        var Movies = Backbone.Collection.extend({
          model: app.Movie
        });
        return new Movies();
      }();

      //
      // View - Movie Row
      //
      app.MovieRow = Backbone.View.extend({
        tagName: 'tr',

        initialize: function() {
          this.listenTo(this.model, 'change', this.render);
        },

        events: {
          'click .like': 'toggleLike'
        },

        render: function() {
          // Viewbridge!
          // This is the very same template used on the server.
          this.el.innerHTML =
            viewbridge.movies.table_row(this.model.toJSON());
          return this;
        },

        toggleLike: function() {
          var like = this.model.get('like');
          this.model.set('like', ! like);
        }
      });

      //
      // View - Movie Table
      //
      app.MovieTable = Backbone.View.extend({
        el: '#movie_table',

        initialize: function() {
          this.tbody = this.el.querySelector('tbody');
          this.listenTo(app.movies, 'add',   this.add);
          this.listenTo(app.movies, 'reset', this.reset);
        },

        add: function(model) {
          var row = new app.MovieRow({model: model});
          this.tbody.appendChild( row.render().el );
        },

        bootstrap: function() {
          app.movies.each(function(model) {
            var el = document.getElementById('movie_' + model.id);
            if (el === null) return;
            // Since the view was already rendered on the server, we just
            // need to initialize the Backbone View with the model and the
            // DOM element.
            new app.MovieRow({model: model, el: el});
          });
        },

        reset: function(collection, options) {
          if (options.bootstrap) {
            this.bootstrap();
          } else {
            this.tbody.innerHTML = '';
            app.movies.each(this.add, this);
          }
        }
      });

      //
      // View - Movie Form
      //
      app.MovieForm = Backbone.View.extend({
        el: '#movie_form',

        initialize: function() {
          this.title  = this.el.querySelector('[name=title]');
          this.studio = this.el.querySelector('[name=studio]');
          this.like   = this.el.querySelector('[name=like]');
        },

        events: {
          'click [type=submit]': 'add',
        },

        add: function(evt) {
          evt.preventDefault();
          app.movies.add({
            title:  this.title.value,
            studio: this.studio.value,
            like:   this.like.checked
          });
          this.el.reset();
        }
      });


      var bootstrapData = !{JSON.stringify(movies)};

      //
      // Initialize the app
      //
      $(function() {
        new app.MovieTable();
        new app.MovieForm();

        // Bootstrap the collection with initial data.  Pass a custom
        // flag to indicate that we only want to initialize the relevant Views
        // and not render them.
        app.movies.reset(bootstrapData, {bootstrap: true});
      });

    }();