"use strict";

angular.module("vocabulary")
    .component("lessonOptions", {
        templateUrl: "/js/redesign-angular/lessonBuilder/lesson-options.html",
        controller: "LessonOptionsController",
        bindings: {
            onCloseOptions: "&"
        }
    })
    .controller("LessonOptionsController",
        ["lessonService", function (lessonService) {
            var ctrl = this;
            ctrl.lessonName = "";
            ctrl.noResourceSelected = false;
            ctrl.activityWithoutWorksheetsSelected = false;
            ctrl.$onInit = function () {
                initializeLessonOptions();

            };

            function initializeLessonOptions() {
                ctrl.typeSize = lessonService.getTypeSize();
                lessonService.getAvailableLessonOptions()
                    .then(function (options) {
                       ctrl.wwActivities = buildCheckBoxObject(
                           lessonService.getSelectedWwActivities(),
                           options.wwActivities
                       );
                       ctrl.files = buildCheckBoxObject(
                           lessonService.getSelectedFiles(),
                           options.files
                       );
                        ctrl.lessonName = lessonService.getLessonName();
                    });
            }


            ctrl.showActivities = function () {
              return ctrl.wwActivities && Object.keys(ctrl.wwActivities).length > 0;
            };

            ctrl.generateFileName = function(activity) {
                return activity.toLowerCase().split(" ").join("-");
            };

            ctrl.updateTypeSize = function () {
                lessonService.setTypeSize(ctrl.typeSize);
            };

            ctrl.updateFiles = function () {
                var files = removeFalsyProperties(ctrl.files);
                files = Object.keys(files);
                lessonService.setSelectedFiles(files);
                if(files.length > 0){
                    ctrl.noResourceSelected = false;
                }
                if (ctrl.files.worksheets) {
                    ctrl.activityWithoutWorksheetsSelected = false;
                }
            };

            ctrl.updateWwActivities = function () {
                var wwActivities = removeFalsyProperties(ctrl.wwActivities);
                wwActivities = Object.keys(wwActivities);
                lessonService.setSelectedWwActivities(wwActivities);
                if(wwActivities.length === 0){
                    ctrl.activityWithoutWorksheetsSelected = false;
                }
            };

            ctrl.saveSelections = function(){
                var ok = true;
                if(lessonService.getSelectedFiles().length === 0){
                    ctrl.noResourceSelected = true;
                    ok = false;
                }
                if (!ctrl.files.worksheets && lessonService.getSelectedWwActivities().length > 0) {
                    ctrl.activityWithoutWorksheetsSelected = true;
                    ok = false;
                }
                if (ok) {
                    lessonService.updateExistingLessonOptions().then(function (lessonId) {
                        ctrl.onCloseOptions();
                    });
                }
            };

            function buildCheckBoxObject(selected, available) {
                var obj = {};
                available.forEach(function (file) {
                    if(selected.indexOf(file) === -1) {
                        obj[file] = false;
                    } else {
                        obj[file] = true;
                    }
                });
                return obj;
            }

            function removeFalsyProperties(obj) {
                var newObj = {};

                for(var prop in obj) {
                    if(obj[prop]) {
                        newObj[prop] = true;
                    }
                }
                return newObj;
            }

        }]);