// Generated by CoffeeScript 1.12.7
(function() {
  var extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;
  Tram.Message = (function(superClass) {
    extend(Message, superClass);
    function Message() {
      return Message.__super__.constructor.apply(this, arguments);
    }
    Message.prototype.defaults = function() {
      return {
        stamp: new Date()
      };
    };
    Message.prototype.initialize = function() {
      return this.on('add change:stamp', function() {
        return this.set('d/mstamp', moment(this.get('stamp')));
      });
    };
    return Message;
  })(Backbone.Model);
  Tram.Messages = (function(superClass) {
    extend(Messages, superClass);
    function Messages() {
      return Messages.__super__.constructor.apply(this, arguments);
    }
    Messages.prototype.model = Tram.Message;
    Messages.prototype.splitThreshold = 30 * 60 * 1000;
    Messages.prototype.foldThreshold = 60 * 1000;
    Messages.prototype.comparator = function(model) {
      return model.get('stamp').valueOf();
    };
    Messages.prototype.initialize = function() {
      return this.on('add', this.onAdd);
    };
    Messages.prototype.onAdd = function(model) {
      var mi, next, prev;
      mi = this.indexOf(model);
      prev = this.models[mi - 1];
      this._splitOrFold(prev, model);
      next = this.models[mi + 1];
      return this._splitOrFold(model, next);
    };
    Messages.prototype._splitOrFold = function(m1, m2) {
      if (m2 == null) {
        return;
      }
      if (m1 == null) {
        m2.unset('d/split');
        m2.unset('d/fold');
        return;
      }
      if (this._splittable(m1, m2)) {
        return m2.set('d/split', true);
      } else {
        m2.unset('d/split');
        if (this._foldable(m1, m2)) {
          return m2.set('d/fold', true);
        } else {
          return m2.unset('d/fold');
        }
      }
    };
    Messages.prototype._splittable = function(m1, m2) {
      return Math.abs(m1.get('stamp').valueOf() - m2.get('stamp').valueOf()) > this.splitThreshold;
    };
    Messages.prototype._foldable = function(m1, m2) {
      return m1.get('from') === m2.get('from') && Math.abs(m1.get('stamp').valueOf() - m2.get('stamp').valueOf()) < this.foldThreshold;
    };
    return Messages;
  })(Backbone.Collection);
  Tram.MessageView = (function(superClass) {
    extend(MessageView, superClass);
    function MessageView() {
      return MessageView.__super__.constructor.apply(this, arguments);
    }
    MessageView.prototype.templateEl = $($('#message-template').html());
    MessageView.prototype.initialize = function() {
      this.setElement(this.templateEl.clone());
      this.$avatarColumn = this.$('.avatar-column');
      return this.bind();
    };
    MessageView.prototype.bind = function() {
      return this.listenTo(this.model, 'change:contact', this.updateContact);
    };
    MessageView.prototype.updateContact = function() {
      if ((this.model.previous('contact') == null) && (this.model.get('contact') != null)) {
        this.av = new Tram.AvatarView({
          model: contact
        });
        return this.$avatarColumn.prepend(this.av.render().el);
      }
    };
    MessageView.prototype.render = function(model) {
      var contact;
      this.rivet = rivets.bind(this.el, {
        message: this.model,
        view: this
      });
      contact = this.model.get('contact');
      if (contact) {
        this.av = new Tram.AvatarView({
          model: contact
        });
        this.$avatarColumn.prepend(this.av.render().el);
      }
      return this;
    };
    MessageView.prototype.remove = function() {
      var ref;
      if ((ref = this.av) != null) {
        ref.remove();
      }
      this.rivet.unbind();
      return MessageView.__super__.remove.apply(this, arguments);
    };
    return MessageView;
  })(Backbone.View);
  Tram.LogApp = (function(superClass) {
    extend(LogApp, superClass);
    function LogApp() {
      return LogApp.__super__.constructor.apply(this, arguments);
    }
    LogApp.prototype.templateEl = $($('#chat-template').html());
    LogApp.prototype.initialize = function() {
      this.setElement(this.templateEl.clone());
      this.$log = this.$('.log');
      this.rivet = rivets.bind(this.el, {
        model: this.model,
        view: this
      });
      return this.bind();
    };
    LogApp.prototype.bind = function() {
      return this.listenTo(this.collection, 'add', this.onAdd);
    };
    LogApp.prototype.onAdd = function(model, collection) {
      var bottomed, el, mi, view;
      bottomed = this.bottomed();
      mi = collection.indexOf(model);
      view = new Tram.MessageView({
        model: model
      });
      el = view.render().el;
      if (mi === 0) {
        this.$log.prepend(el);
      } else {
        this.$log.children().eq(mi - 1).after(el);
      }
      if (bottomed) {
        return this.scroll();
      }
    };
    LogApp.prototype.bottomed = function() {
      return this.$el.scrollTop() + this.$el.innerHeight() === this.el.scrollHeight;
    };
    LogApp.prototype.scroll = function() {
      return this.$el.scrollTop(this.el.scrollHeight);
    };
    LogApp.prototype.remove = function() {
      this.rivet.unbind();
      return LogApp.__super__.remove.apply(this, arguments);
    };
    return LogApp;
  })(Backbone.View);
}).call(this);
//# sourceMappingURL=messages.js.map