var AppDispatcher = require('../dispatcher/appDispatcher');
var EventEmitter = require('events').EventEmitter;
var Cart = require('../models/cart');

var InitializationConstants = require('../constants/initializationConstants')
var _ = require('underscore');


var state = {
    isEverythingReadyToStartTheShow: false
}

var initializeTheShop = function () { 
  // for now only guarantee that cart is created
  var cart = new Cart();
  cart.save(null, {
    success: function () {
      state.isEverythingReadyToStartTheShow = true;
      InitializationStore.emitChange();
    }
  })
}

// Extend ItemStore with EventEmitter to add eventing capabilities
var InitializationStore = _.extend({}, EventEmitter.prototype, {

    getState: function() {
        return state;
    }, 

    // Emit Change event
    emitChange: function() {
        console.log("InitializationStore change!");
        this.emit('change');
    },

    // Add change listener
    addChangeListener: function(callback) {
        this.on('change', callback);
    },

    // Remove change listener
    removeChangeListener: function(callback) {
        this.removeListener('change', callback);
    }

});


// Register callback with AppDispatcher
InitializationStore.dispatchToken = AppDispatcher.register(function(payload) {
    var action = payload.action;

    switch (action.actionType) {

        case InitializationConstants.INITIALIZE:
          initializeTheShop();
          break;
        default:
            return true;
    }

    // If action was responded to, emit change event
    InitializationStore.emitChange();
    return true;

});

module.exports = InitializationStore;