var app = angular.module("questionnaire", ['ngResource', 'ngAnimate', 'ui.router', 'ui.sortable', 'ui.bootstrap']);

app.provider('sessionManager', function () {
    var timeoutTime;

    return {
        setTimeoutSession: function (value) {
            // in minutes
            timeoutTime = value * 1000 * 60;
        },
        $get: function ($rootScope) {

            var timer,
                beforeSessionTimeout = timeoutTime * 0.95,
                leftToTimeout = (timeoutTime - beforeSessionTimeout) * 0.9; // it gets -10% buffer


            return {
                startCountdown: function () {
                    valideBeforeStart();

                    if (timer) {
                        clearTimeout(timer);
                    }

                    // Ocuurs 5% before the session ends.
                    timer = setTimeout(function () {
                        $rootScope.$broadcast('SESSION_BEFORE_TIMEOUT', { leftToTimeout: leftToTimeout });
                    }, beforeSessionTimeout);
                }
            };
        }
    };

    function valideBeforeStart() {
        if (!timeoutTime) {
            throw new Error('Timeout is not defined in sessionManager.');
        }
    }  
});

app.config(function ($stateProvider, $urlRouterProvider, sessionManagerProvider) {
    sessionManagerProvider.setTimeoutSession(30);

    $stateProvider
        .state('tabs', {
            url: '/tabs/:tabOrder',
            templateUrl: 'app/Views/tabs.html',
            resolve: {
                questionnaire: function(QuestionnaireInfo) {
                    return QuestionnaireInfo.get().$promise;
                },
                tab: function($stateParams, TabService) {
                    return TabService.get({ id: $stateParams.tabOrder }).$promise;
                }
            },
            controller: 'tabsController'
        })
        .state('tabs.mitham', { 
            url: '/mitham/:mithamId',
            templateUrl: 'app/Views/mitham.html',
            controller: 'mithamGroupController'
        })
        .state('tabs.previousTab', {
            url: '/previousTab',
            onEnter: function($modal) {
                $modal.open({
                    templateUrl: 'app/templates/confirmationModal.html',
                    controller: 'confirmationModalController',
                    keyboard: false,
                    backdrop: 'static'
                });
            }
        })
        .state('tabs.previousTabDenied', {
            url: '/previousTabDenied',
            onEnter: function($modal) {
                $modal.open({
                    templateUrl: 'app/templates/previousTabDeniedModal.html',
                    controller: 'confirmationModalController'
                });
            }
        })
        .state('tabs.mitham.previousTabDenied', {
            url: '/previousTabDenied',
            onEnter: function($modal) {
                $modal.open({
                    templateUrl: 'app/templates/previousTabDeniedModal.html',
                    controller: 'confirmationModalController'
                });
            }
        })
        .state('error', {
            url: '/error/:statusCode',
            templateUrl: 'app/Views/error.html',
            controller: 'errorController'
        })
        .state('IENotSupported', {
            url: '/IENotSupported',
            templateUrl: 'app/Views/IENotSupported.html',
            controller: function($scope, GIYUS_SITE) {
                $scope.url = { home: GIYUS_SITE };
            }
        });
    
        $urlRouterProvider.when('/tabs/2', '/tabs/2/mitham/');
});

app.run(function ($rootScope, $state, $window, QuestionnaireInfo, professionDescriptionService, GIYUS_SITE) {
    $rootScope.initialLoading = true;

    function goToCurrentTab() {
        if (isValidBrowser()) {
            return QuestionnaireInfo.get().$promise.then(function (response) {
                 return $state.go('tabs', { tabOrder: response.CurrentTabOrder });
            });
        } else {
            return $state.go('IENotSupported');
        }
    }

    // 'finally' is a reserved word in IE8.
    goToCurrentTab().then(function () {
        $rootScope.initialLoading = false;
    }, function (response) {
        $rootScope.initialLoading = false;

        redirectByStatusCode(response);
    });

    professionDescriptionService.get();

    $rootScope.$on('$stateChangeError', function(event, toState, toParams, fromState, fromParams, error) {
        redirectByStatusCode(error);
    });

    function redirectByStatusCode(error) {
        if (error.status === 401) {
            $window.location.href = GIYUS_SITE + 'Login.aspx?moduleToGoTo=17';
        } else if (error.status === 404) {
            $window.location.href = GIYUS_SITE;
        } else if (error.status === 403) {
            goToCurrentTab();
        } else {
            $state.go('error', { exceptionId: error.data.ExceptionId });
        }
    }

    function isValidBrowser() {
        if (navigator.appName == 'Microsoft Internet Explorer') {
            return !(navigator.userAgent.contains('MSIE 8.0') ||
                navigator.userAgent.contains('MSIE 7.0') || navigator.userAgent.contains('MSIE 6.0'));
        }
        return true;
    }
});

app.run(function (authenticationService, $rootScope, sessionManager, $modal, $window, GIYUS_SITE, $q) {
    $rootScope.$on('SESSION_BEFORE_TIMEOUT', function (event, data) {
        var dialog = $modal.open({
            templateUrl: 'app/templates/sessionTimeoutModal.html',
            keyboard: false,
            backdrop: 'static',
            controller: function ($modalInstance, $scope) {
                $scope.leftToTimeout = convertToViewTime(data.leftToTimeout);

                var interval = setInterval(function () {
                    data.leftToTimeout -= 1000;

                    if (data.leftToTimeout >= 0) {
                        $scope.leftToTimeout = convertToViewTime(data.leftToTimeout);
                        $scope.$digest();
                    } else {
                        // rejecting.
                        $scope.go(false);
                    }
                }, 1000);

                $scope.go = function(isStay) {
                    if (isStay) {
                        $scope.$close();
                    } else {
                        $scope.$dismiss();
                    }

                    clearInterval(interval);
                };

                function convertToViewTime(milliseconds) {
                    var minutes = Math.floor(milliseconds / 1000 / 60),
                        seconds = Math.floor(milliseconds / 1000 % 60);

                    seconds = seconds.toString().length == 1 ? '0' + seconds : seconds;

                    return minutes + ':' + seconds;
                }
            }
        });

        dialog.result.then(function () {
            return authenticationService.ping().then(function () {
                sessionManager.startCountdown();
            }, function () {
                // The user is already disconnced for any reason / internal server error.
                return $q.reject();
            });
        }, function () {
            return authenticationService.disconnect().then(function () {
                return $q.reject();
            });
        }).then(null, function () {
            $window.location = GIYUS_SITE;
        });
    });
});

app.constant('AUTH_SERVICE', 'https://www.aka.idf.il/main/giyus/AuthenticationService.asmx');

app.constant('GIYUS_SITE', 'https://www.aka.idf.il/main/giyus/');