(function () {
    'use strict';

    var serviceId = 'taskAdminService';
    angular.module('taskAdmin').factory(serviceId, ['$q', 'taskAdminDataContext', 'datacontext', 'myUsersDataContext', taskAdminService]);

    function taskAdminService($q, taskAdminDataContext, datacontext, myUsersDataContext) {

        var service = {
            getCurrentTaskClass: getCurrentTaskClass,
            setCurrentTaskClass: setCurrentTaskClass,
            createBlankTaskClass: createBlankTaskClass,
            getTaskClassIcons: getTaskClassIcons,
            getTaskClasses: getTaskClasses,
            deleteTaskClass: deleteTaskClass,
            updateTaskClass: updateTaskClass,
            createTaskClass: createTaskClass,
            createBlankTask: createBlankTask,
            getCurrentTask: getCurrentTask,
            setCurrentTask: setCurrentTask,
            getAllTasks: getAllTasks,
            deleteTask: deleteTask,
            createTask: createTask,
            updateTask: updateTask,
            getResponseTypes: getResponseTypes,
            setCurrentAssignedTask: setCurrentAssignedTask,
            getCurrentAssignedTask: getCurrentAssignedTask,
            assignTaskToGroup: assignTaskToGroup,
            assignTaskToIndividual: assignTaskToIndividual,
            getAssignedTasks: getAssignedTasks,
            getAssignedTasksSimple: getAssignedTasksSimple,
            getAssignedTask: getAssignedTask,
            getAssignedUsers: getAssignedUsers,
            closeAssignedTask: closeAssignedTask,
            recallAssignedTask: recallAssignedTask,
            setCurrentTasksResponse: setCurrentTasksResponse,
            getCurrentTasksResponse: getCurrentTasksResponse,
            createResponseReview: createResponseReview,
            saveResponseReview: saveResponseReview,
            getFormTypeName: getFormTypeName,
            getFormTypes: getFormTypes,
            getDefaultTaskClass: getDefaultTaskClass,
            getTaskRecord: getTaskRecord,
            badgeIsOnTask: badgeIsOnTask
        };

        var currentTaskClass;
        var currentTask;
        var responseTypes;
        var inProgress;
        var currentAssignedTask;
        var currentTaskReview;

        return service;

        /* ************************************
        * Task Types
        * ************************************/
        function getCurrentTaskClass() {
            return currentTaskClass;
        }

        function setCurrentTaskClass(taskClass) {
            currentTaskClass = taskClass;
        }

        function getTaskClasses() {
            return taskAdminDataContext.getAllTaskClasses();
        }

        function getDefaultTaskClass() {
            return taskAdminDataContext.getDefaultTaskClass();
        }

        function createTaskClass(taskClass) {
            return taskAdminDataContext.createTaskClass(taskClass);
        }

        function deleteTaskClass(taskClass) {
            return taskAdminDataContext.deleteTaskClass(taskClass);
        }

        function updateTaskClass(taskClass) {
            return taskAdminDataContext.updateTaskClass(taskClass);
        }

        // Create a blank task class template
        function createBlankTaskClass() {
            var taskClass = {
                name: '',
                description: '',
                completionNotifier: false,
                completionDeliverableRequired: false,
                completionBadgeIssuing: false,
                markingSchemeRequired: false,
                groupWork: false,
                iconPath: '',
                status: 0,
                taskClassResponseTypes: []
            };
            return taskClass;
        }

        /* ************************************
        * Tasks
        * ************************************/
        function getCurrentTask() {
            return currentTask;
        }

        function getTaskRecord(task) {
            return taskAdminDataContext.getTaskRecord(task).then(function (taskRecord) {
                currentTask = taskRecord;
            });
        }
        
        function setCurrentTask(taskRecord) {
            currentTask = taskRecord;
        }

        function getAllTasks() {
            return taskAdminDataContext.getAllTasks();
        }

        function deleteTask(task) {
            return taskAdminDataContext.deleteTask(task);
        }

        function updateTask(task) {
            return taskAdminDataContext.updateTask(task);
        }

        function createTask(task) {
            return taskAdminDataContext.createTask(task);
        }

        // Create a blank task template
        function createBlankTask() {
            var task = {
                name: '',
                description: '',
                details: '',
                taskSteps: [],
                taskBadges: [],
                taskAttachments: [],
                taskMarkingSchemes: [],
                taskResponseTypes: [],
                status: 0,
                autoCompleteBadges: [],
                autoCompleteBadgeId: null
            };
            return task;
        }

        /* ************************************
        * Assigned tasks
        * ************************************/
        function getCurrentAssignedTask() {
            return currentAssignedTask;
        }

        function setCurrentAssignedTask(assignedTask) {
            currentAssignedTask = assignedTask;
        }

        

        function assignTaskToGroup(assignedTask) {

            var unique = function (array) {
                var a = array.concat();
                for (var i = 0; i < a.length; ++i) {
                    for (var j = i + 1; j < a.length; ++j) {
                        if (a[i] === a[j])
                            a.splice(j--, 1);
                    }
                }

                return a;
            };

            //Get the users we need to send a notification about the task to - users that are not admins
            var users$ = assignedTask.assigneeIds.map(myUsersDataContext.getNonAdminUserIdsForOrg);

            return $q.all(users$).then(function (userIdsArray) {
                var allUserIds = [];
                userIdsArray.forEach(function (userIds) {
                    allUserIds = unique(allUserIds.concat(userIds));
                });

                var assign$ = taskAdminDataContext.assignTaskToGroup(assignedTask);
                var notify$ = function (taskName) {
                    return datacontext.sendNotification({
                        userIds: allUserIds,
                        description: 'You have been assigned a new task "' + taskName + '"'
                    });
                };

                return assign$.then(function (assignedTaskResponse) {
                    return notify$(assignedTaskResponse.taskRecordName).then(function (notificationResponse) {
                        return assignedTaskResponse;
                    });
                });

            });
        }
    
        /* *
        * Add a user to an assignedTask, then send the user a notification that they have a new task
        * */
        function assignTaskToIndividual(assignment) {
            return taskAdminDataContext.assignIndividualTask(assignment).then(function (data) {
                return datacontext.sendNotification({
                    userIds: [assignment.ownerId],
                    description: 'You have been assigned a new task "' + assignment.taskName + '"'
                });
            });
        }

        function getAssignedTasks() {
            return taskAdminDataContext.getAssignedTasks();
        }

        function getAssignedTasksSimple() {
            return taskAdminDataContext.getAssignedTasksSimple();
        }

        function getAssignedTask(assignedTaskId) {
            return taskAdminDataContext.getAssignedTask(assignedTaskId);
        }

        function getAssignedUsers(assignedTask) {
            return taskAdminDataContext.getAssignedUsers(assignedTask);
        }

        function closeAssignedTask(assignedTask) {
            return taskAdminDataContext.closeAssignedTask(assignedTask);
        }

        function recallAssignedTask(assignedTask) {
            return taskAdminDataContext.recallAssignedTask(assignedTask);
        }

       /* ************************************
       * Responses
       * ************************************/
        function getCurrentTasksResponse() {
            return currentTaskReview;
        }

        function setCurrentTasksResponse(response) {
            currentTaskReview = response;
        }

        function createResponseReview(response) {
            return taskAdminDataContext.createResponseReview(response);
        }

        function saveResponseReview(response) {
            return taskAdminDataContext.saveResponseReview(response);
        }

        function getResponseTypes() {
            if (!responseTypes) {
                if (!inProgress) {
                    inProgress = getResponseTypesFromServer();
                }
                return inProgress
                    .then(function (data) {
                        responseTypes = data;
                        inProgress = false;
                        return responseTypes;
                    });
            }
            return $q.resolve(responseTypes);
        }

        function getResponseTypesFromServer() {
            if (!responseTypes) {
                return taskAdminDataContext.getResponseTypes()
                    .then(function (data) {
                        responseTypes = data;
                        return responseTypes;
                    });
            }
            return $q.resolve(responseTypes);
        }

        function getTaskClassIcons() {
            return ["fa-adjust", "fa-adn", "fa-align-center", "fa-align-justify", "fa-align-left", "fa-align-right", "fa-ambulance", "fa-anchor", "fa-android", "fa-angellist", "fa-angle-double-down", "fa-angle-double-left", "fa-angle-double-right", "fa-angle-double-up", "fa-angle-down", "fa-angle-left", "fa-angle-right", "fa-angle-up", "fa-apple", "fa-archive", "fa-area-chart", "fa-arrow-circle-down", "fa-arrow-circle-left", "fa-arrow-circle-o-down", "fa-arrow-circle-o-left", "fa-arrow-circle-o-right", "fa-arrow-circle-o-up", "fa-arrow-circle-right", "fa-arrow-circle-up", "fa-arrow-down", "fa-arrow-left", "fa-arrow-right", "fa-arrow-up", "fa-arrows", "fa-arrows-alt", "fa-arrows-h", "fa-arrows-v", "fa-asterisk", "fa-at", "fa-automobile", "fa-backward", "fa-ban", "fa-bank", "fa-bar-chart", "fa-bar-chart-o", "fa-barcode", "fa-bars", "fa-bed", "fa-beer", "fa-behance", "fa-behance-square", "fa-bell", "fa-bell-o", "fa-bell-slash", "fa-bell-slash-o", "fa-bicycle", "fa-binoculars", "fa-birthday-cake", "fa-bitbucket", "fa-bitbucket-square", "fa-bitcoin", "fa-bold", "fa-bolt", "fa-bomb", "fa-book", "fa-bookmark", "fa-bookmark-o", "fa-briefcase", "fa-btc", "fa-bug", "fa-building", "fa-building-o", "fa-bullhorn", "fa-bullseye", "fa-bus", "fa-buysellads", "fa-cab", "fa-calculator", "fa-calendar", "fa-calendar-o", "fa-camera", "fa-camera-retro", "fa-car", "fa-caret-down", "fa-caret-left", "fa-caret-right", "fa-caret-square-o-down", "fa-caret-square-o-left", "fa-caret-square-o-right", "fa-caret-square-o-up", "fa-caret-up", "fa-cart-arrow-down", "fa-cart-plus", "fa-cc", "fa-cc-amex", "fa-cc-discover", "fa-cc-mastercard", "fa-cc-paypal", "fa-cc-stripe", "fa-cc-visa", "fa-certificate", "fa-chain", "fa-chain-broken", "fa-check", "fa-check-circle", "fa-check-circle-o", "fa-check-square", "fa-check-square-o", "fa-chevron-circle-down", "fa-chevron-circle-left", "fa-chevron-circle-right", "fa-chevron-circle-up", "fa-chevron-down", "fa-chevron-left", "fa-chevron-right", "fa-chevron-up", "fa-child", "fa-circle", "fa-circle-o", "fa-circle-o-notch", "fa-circle-thin", "fa-clipboard", "fa-clock-o", "fa-close", "fa-cloud", "fa-cloud-download", "fa-cloud-upload", "fa-cny", "fa-code", "fa-code-fork", "fa-codepen", "fa-coffee", "fa-cog", "fa-cogs", "fa-columns", "fa-comment", "fa-comment-o", "fa-comments", "fa-comments-o", "fa-compass", "fa-compress", "fa-connectdevelop", "fa-copy", "fa-copyright", "fa-credit-card", "fa-crop", "fa-crosshairs", "fa-css3", "fa-cube", "fa-cubes", "fa-cut", "fa-cutlery", "fa-dashboard", "fa-dashcube", "fa-database", "fa-dedent", "fa-delicious", "fa-desktop", "fa-deviantart", "fa-diamond", "fa-digg", "fa-dollar", "fa-dot-circle-o", "fa-download", "fa-dribbble", "fa-dropbox", "fa-drupal", "fa-edit", "fa-eject", "fa-ellipsis-h", "fa-ellipsis-v", "fa-empire", "fa-envelope", "fa-envelope-o", "fa-envelope-square", "fa-eraser", "fa-eur", "fa-euro", "fa-exchange", "fa-exclamation", "fa-exclamation-circle", "fa-exclamation-triangle", "fa-expand", "fa-external-link", "fa-external-link-square", "fa-eye", "fa-eye-slash", "fa-eyedropper", "fa-facebook", "fa-facebook-f", "fa-facebook-official", "fa-facebook-square", "fa-fast-backward", "fa-fast-forward", "fa-fax", "fa-female", "fa-fighter-jet", "fa-file", "fa-file-archive-o", "fa-file-audio-o", "fa-file-code-o", "fa-file-excel-o", "fa-file-image-o", "fa-file-movie-o", "fa-file-o", "fa-file-pdf-o", "fa-file-photo-o", "fa-file-picture-o", "fa-file-powerpoint-o", "fa-file-sound-o", "fa-file-text", "fa-file-text-o", "fa-file-video-o", "fa-file-word-o", "fa-file-zip-o", "fa-files-o", "fa-film", "fa-filter", "fa-fire", "fa-fire-extinguisher", "fa-flag", "fa-flag-checkered", "fa-flag-o", "fa-flash", "fa-flask", "fa-flickr", "fa-floppy-o", "fa-folder", "fa-folder-o", "fa-folder-open", "fa-folder-open-o", "fa-font", "fa-forumbee", "fa-forward", "fa-foursquare", "fa-frown-o", "fa-futbol-o", "fa-gamepad", "fa-gavel", "fa-gbp", "fa-ge", "fa-gear", "fa-gears", "fa-genderless", "fa-gift", "fa-git", "fa-git-square", "fa-github", "fa-github-alt", "fa-github-square", "fa-gittip", "fa-glass", "fa-globe", "fa-google", "fa-google-plus", "fa-google-plus-square", "fa-google-wallet", "fa-graduation-cap", "fa-gratipay", "fa-group", "fa-h-square", "fa-hacker-news", "fa-hand-o-down", "fa-hand-o-left", "fa-hand-o-right", "fa-hand-o-up", "fa-hdd-o", "fa-header", "fa-headphones", "fa-heart", "fa-heart-o", "fa-heartbeat", "fa-history", "fa-home", "fa-hospital-o", "fa-hotel", "fa-html5", "fa-ils", "fa-image", "fa-inbox", "fa-indent", "fa-info", "fa-info-circle", "fa-inr", "fa-instagram", "fa-institution", "fa-ioxhost", "fa-italic", "fa-joomla", "fa-jpy", "fa-jsfiddle", "fa-key", "fa-keyboard-o", "fa-krw", "fa-language", "fa-laptop", "fa-lastfm", "fa-lastfm-square", "fa-leaf", "fa-leanpub", "fa-legal", "fa-lemon-o", "fa-level-down", "fa-level-up", "fa-life-bouy", "fa-life-buoy", "fa-life-ring", "fa-life-saver", "fa-lightbulb-o", "fa-line-chart", "fa-link", "fa-linkedin", "fa-linkedin-square", "fa-linux", "fa-list", "fa-list-alt", "fa-list-ol", "fa-list-ul", "fa-location-arrow", "fa-lock", "fa-long-arrow-down", "fa-long-arrow-left", "fa-long-arrow-right", "fa-long-arrow-up", "fa-magic", "fa-magnet", "fa-mail-forward", "fa-mail-reply", "fa-mail-reply-all", "fa-male", "fa-map-marker", "fa-mars", "fa-mars-double", "fa-mars-stroke", "fa-mars-stroke-h", "fa-mars-stroke-v", "fa-maxcdn", "fa-meanpath", "fa-medium", "fa-medkit", "fa-meh-o", "fa-mercury", "fa-microphone", "fa-microphone-slash", "fa-minus", "fa-minus-circle", "fa-minus-square", "fa-minus-square-o", "fa-mobile", "fa-mobile-phone", "fa-money", "fa-moon-o", "fa-mortar-board", "fa-motorcycle", "fa-music", "fa-navicon", "fa-neuter", "fa-newspaper-o", "fa-openid", "fa-outdent", "fa-pagelines", "fa-paint-brush", "fa-paper-plane", "fa-paper-plane-o", "fa-paperclip", "fa-paragraph", "fa-paste", "fa-pause", "fa-paw", "fa-paypal", "fa-pencil", "fa-pencil-square", "fa-pencil-square-o", "fa-phone", "fa-phone-square", "fa-photo", "fa-picture-o", "fa-pie-chart", "fa-pied-piper", "fa-pied-piper-alt", "fa-pinterest", "fa-pinterest-p", "fa-pinterest-square", "fa-plane", "fa-play", "fa-play-circle", "fa-play-circle-o", "fa-plug", "fa-plus", "fa-plus-circle", "fa-plus-square", "fa-plus-square-o", "fa-power-off", "fa-print", "fa-puzzle-piece", "fa-qq", "fa-qrcode", "fa-question", "fa-question-circle", "fa-quote-left", "fa-quote-right", "fa-ra", "fa-random", "fa-rebel", "fa-recycle", "fa-reddit", "fa-reddit-square", "fa-refresh", "fa-remove", "fa-renren", "fa-reorder", "fa-repeat", "fa-reply", "fa-reply-all", "fa-retweet", "fa-rmb", "fa-road", "fa-rocket", "fa-rotate-left", "fa-rotate-right", "fa-rouble", "fa-rss", "fa-rss-square", "fa-rub", "fa-ruble", "fa-rupee", "fa-save", "fa-scissors", "fa-search", "fa-search-minus", "fa-search-plus", "fa-sellsy", "fa-send", "fa-send-o", "fa-server", "fa-share", "fa-share-alt", "fa-share-alt-square", "fa-share-square", "fa-share-square-o", "fa-shekel", "fa-sheqel", "fa-shield", "fa-ship", "fa-shirtsinbulk", "fa-shopping-cart", "fa-sign-in", "fa-sign-out", "fa-signal", "fa-simplybuilt", "fa-sitemap", "fa-skyatlas", "fa-skype", "fa-slack", "fa-sliders", "fa-slideshare", "fa-smile-o", "fa-soccer-ball-o", "fa-sort", "fa-sort-alpha-asc", "fa-sort-alpha-desc", "fa-sort-amount-asc", "fa-sort-amount-desc", "fa-sort-asc", "fa-sort-desc", "fa-sort-down", "fa-sort-numeric-asc", "fa-sort-numeric-desc", "fa-sort-up", "fa-soundcloud", "fa-space-shuttle", "fa-spinner", "fa-spoon", "fa-spotify", "fa-square", "fa-square-o", "fa-stack-exchange", "fa-stack-overflow", "fa-star", "fa-star-half", "fa-star-half-empty", "fa-star-half-full", "fa-star-half-o", "fa-star-o", "fa-steam", "fa-steam-square", "fa-step-backward", "fa-step-forward", "fa-stethoscope", "fa-stop", "fa-street-view", "fa-strikethrough", "fa-stumbleupon", "fa-stumbleupon-circle", "fa-subscript", "fa-subway", "fa-suitcase", "fa-sun-o", "fa-superscript", "fa-support", "fa-table", "fa-tablet", "fa-tachometer", "fa-tag", "fa-tags", "fa-tasks", "fa-taxi", "fa-tencent-weibo", "fa-terminal", "fa-text-height", "fa-text-width", "fa-th", "fa-th-large", "fa-th-list", "fa-thumb-tack", "fa-thumbs-down", "fa-thumbs-o-down", "fa-thumbs-o-up", "fa-thumbs-up", "fa-ticket", "fa-times", "fa-times-circle", "fa-times-circle-o", "fa-tint", "fa-toggle-down", "fa-toggle-left", "fa-toggle-off", "fa-toggle-on", "fa-toggle-right", "fa-toggle-up", "fa-train", "fa-transgender", "fa-transgender-alt", "fa-trash", "fa-trash-o", "fa-tree", "fa-trello", "fa-trophy", "fa-truck", "fa-try", "fa-tty", "fa-tumblr", "fa-tumblr-square", "fa-turkish-lira", "fa-twitch", "fa-twitter", "fa-twitter-square", "fa-umbrella", "fa-underline", "fa-undo", "fa-university", "fa-unlink", "fa-unlock", "fa-unlock-alt", "fa-unsorted", "fa-upload", "fa-usd", "fa-user", "fa-user-md", "fa-user-plus", "fa-user-secret", "fa-user-times", "fa-users", "fa-venus", "fa-venus-double", "fa-venus-mars", "fa-viacoin", "fa-video-camera", "fa-vimeo-square", "fa-vine", "fa-vk", "fa-volume-down", "fa-volume-off", "fa-volume-up", "fa-warning", "fa-wechat", "fa-weibo", "fa-weixin", "fa-whatsapp", "fa-wheelchair", "fa-wifi", "fa-windows", "fa-won", "fa-wordpress", "fa-wrench", "fa-xing", "fa-xing-square", "fa-yahoo", "fa-yelp", "fa-yen", "fa-youtube", "fa-youtube-play", "fa-youtube-square"];
        }

        function getFormTypes() {
            return [
             {
                 type: 0,
                 name: 'Standard'
             },
             {
                 type: 1,
                 name: 'Reflection'
             },
             {
                 type: 2,
                 name: 'Goal'
             },
             {
                 type: 3,
                 name: 'CPD'
             },
             {
                 type: 4,
                 name: 'Quiz'
             }
            ];
        }
           
        function getFormTypeName(type) {
            switch (type) {
                case 0:
                    return 'Standard';
                case 1:
                    return 'Reflection';
                case 2:
                    return 'Goal';
                case 3:
                    return 'CPD';
                case 4:
                    return 'Quiz';
            }
        }

        /*
        * Find out if the given badge id is being used on a published badge
        */
        function badgeIsOnTask(badgeId){
            return taskAdminDataContext.getTaskBadges(badgeId)
                    .then(function (data) {
                        return data;
                    });
        }
    }
})();