/**

 * Created by Answer1215 on 1/13/2015.

 */

/**

*  Controller(s)

* */

 function AppController($rootScope, $location) {

    var appCtrl = this;

    $rootScope.$on('$routeChangeError', function(event, current, previous, rejection) {

        appCtrl.message = rejection.message;

        appCtrl.isError = true;

    })

    appCtrl.goHome = function() {

        $location.path('/');

    }

}

/**

 *  Directive(s)

 * */

function ErrorDirective() {

    return {

        restrict: "EA",

        bindToController: true,

        controller: 'AppController',

        controllerAs: 'appCtrl',

        templateUrl: 'error.html'

    }

}

/**

 *  Angular module

 * */

 angular.module('app', [

    'ngRoute',

    'app.home'

])

    .constant('PEOPLE_URL', 'data.json')

    .controller('AppController', AppController)

    .directive('error', ErrorDirective)

    .config(function($routeProvider) {

        $routeProvider

            .when('/', {

                templateUrl: "home.html",

                controller: "HomeController",

                controllerAs: "homeCtrl",

                /*

                *  resolve run first, prepare the data ready,

                *  then controller & template show up

                * */

                resolve: HomeController.resolve

            });

    });

/**

 * Created by Answer1215 on 1/13/2015.

 */

function HomeController(loadPeople, getMessage) {

    var homeCtrl = this;

    homeCtrl.message = getMessage;

    homeCtrl.people = loadPeople;

}

HomeController.resolve = {

    loadPeople: function(SimpleDataService) {

        return SimpleDataService.getPeople();

    },

    getMessage : function(SimpleDataService) {

        return SimpleDataService.message;

    }

}

function SimpleDataService($http, $q, PEOPLE_URL) {

    var simpleData = {};

    simpleData.people = [];

    simpleData.message = "Hello From Service";

    simpleData.getPeople = function() {

        return fetchPeople().then(function(result) {

            return result.data;

        });

    }

    function fetchPeople() {

        var defer = $q.defer();

        $http.get(PEOPLE_URL)

           .success(function(data, status, headers, config) {

               simpleData.people = data;

               defer.resolve({data: data, message: "OK"});

            }).

            error(function(data, status, headers, config) {

               if(status === 404){

                   data =  data;

                   defer.reject({data: data, message: "Cannot find " + config.url});

               }

            });

        return defer.promise;

    }

    return simpleData;

}

angular.module('app.home', [])

    .controller('HomeController',  HomeController)

    .service('SimpleDataService', SimpleDataService);