var AppDispatcher = require('../dispatcher/appDispatcher');
var EventEmitter = require('events').EventEmitter;
var UserConstants = require('../constants/userConstants');
var _ = require('underscore');

var _registrationState = {};
var _loginState = {};

var handleRegistrationSuccess = function() {
    _registrationState = {
        performed: true,
        success: true
    };
};

var handleRegistrationFailure = function(error) {
    _registrationState = {
        performed: true,
        success: false,
        error: error
    };
};

var handleLoginSuccess = function() {
    _loginState = {
        loggedIn: true
    };
};

var handleLoginFailure = function(error) {
    _loginState = {
        loggedIn: false,
        error: error
    };
};
// Extend SectionStore with EventEmitter to add eventing capabilities
var UserStore = _.extend({}, EventEmitter.prototype, {

    getRegistrationState: function() {
      //return _categoryDetails;
      return _registrationState;
    },
    getLoginState: function() {
      return _loginState;   
    },
    // Emit Change event
    emitChange: function() {
      console.log("Emmiting Section 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
AppDispatcher.register(function(payload) {
  var action = payload.action;
  var text;

  switch(action.actionType) {


      case UserConstants.REGISTRATION_SUCCESS:
          handleRegistrationSuccess();
      break;
      case UserConstants.REGISTRATION_FAILURE:
          handleRegistrationFailure(action.error);
      break;
      case UserConstants.LOGIN_SUCCESS:
          handleLoginSuccess();
      break;
      case UserConstants.LOGIN_FAILURE:
          handleLoginFailure(action.error);
      break;

    default:
      return true;
  }

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

});

module.exports = UserStore;