//jules 5-May-2013
//Minotaur is a thing I wrote for brbprint that defers model updates.
//The idea is you set some keys on the model, and the Minotaur defers the actual Ajax POST/PUT.
//Also updates a save button for you, letting you know when the changes finish posting.
//
//Expects that your model has a "save" method that accepts a callback, to inform the Minotaur that the save happened.
//
//The name is a pun on Monitor but is more badass!!!! 38c (minotaur emoticon)
$(function(){

  var Monitor = function () {
    var base = this;
    base.$el = $("#save");
    base.timeout = null;
    base.delay = 500;
    base.objects = {};
    
    base.init = function () {
      base.$el.addClass('saved').html('Save');
      base.$el.click(base.save);
    }

    base.watch = function (object) {
      base.objects[object.type] = base.objects[object.type] || {};
      base.objects[object.type][object.id] = object;
      base.clear();
      base.timeout = setTimeout(base.save, base.delay);
    };
    
    base.clear = function () {
      if (base.timeout) clearTimeout(base.timeout);
      base.timeout = false;
    };
    
    base.save = function () {
      var saving = false;
      base.clear();
      
      for (var type in base.objects) {
        for (var id in base.objects[type]) {
          if (base.timeout)
            return;
          var obj = base.objects[type][id];
          if (obj) obj.save(function(){
            base.$el.removeClass('unsaved saving').addClass('saved').html('Saved');
            saving = true;
          });
          base.objects[type][id] = false;
        }
      }

      if (saving) {
        base.$el.removeClass('unsaved saved').addClass('saving').html('Saving');
      }
      else {
        base.$el.removeClass('unsaved saving').addClass('saved').html('Saved');
      }
      
      base.objects = {};
    };
    
    base.init();
  };
  
  window.Minotaur = new Monitor ();
});