(function () {
    "use strict";

    angular
        .module('shared')
        .service('assignTargetedResource', ['LazModalService', 'targetedResource', 'messageHandler', 'studentList', 'Authorization', 'memberInfo', 'SiteHelper', 'FeatureCheck',
            function assignTargetedResourceService(LazModalService, targetedResource, messageHandler, studentList, Authorization, memberInfo, SiteHelper, FeatureCheck) {
                var service = this;
                service.show = show;
                service.showResourceInfo = showResourceInfo;

                function showResourceInfo(resourceInfo, siteRequiredAbbrev) {
                    var studentSelectionDisabledChecker = [
                        Authorization.studentWithoutPrivilegeCheckerFactory(getReadingProductAbbreviation()),
                        studentAtTargetedResourceLimit,
                        Authorization.studentWithoutResourceLicenseCheckerFactory(
                            Authorization.getLicenseTypeForResourceCollection(resourceInfo.resources),
                            resourceInfo.resources.length > 1 ? 'these resources' : 'this resource')
                    ];
                    var allowEllSharedAssigning = FeatureCheck.isFeatureEnabled('ALLOW_SHARED_ELL_ASSIGNING')
                        && siteRequiredAbbrev === SiteHelper.RAZ_ELL_SITE_ABBREVIATION;
                    if (siteRequiredAbbrev && !allowEllSharedAssigning) {
                        studentSelectionDisabledChecker.push(Authorization.studentWithoutPrivilegeCheckerFactory(siteRequiredAbbrev));
                    }
                    studentList.annotateSelectableStudents(studentSelectionDisabledChecker);
                    LazModalService.showModal({
                        templateUrl: '/shared/js/angular/targeted-resource-assignments/assign-targeted-resource-modal.html',
                        controller: 'assignTargetedResourceModal',
                        controllerAs: '$ctrl',
                        hideCloseButton: 'true',
                        inputs: {
                            resourceInfo: resourceInfo
                        },
                        overrideClass: 'js-none',
                        overrideStyle: 'height: 95vh;'
                    })
                        .catch(function (reason) {
                            messageHandler.publishError('There was a problem showing the assignment. Please try again later.');
                        })
                }

                function show(action, resourceId, translationId, bookroomCollectionId, title, siteRequiredAbbrev) {
                    service.action = action;
                    targetedResource.getResourceInfo(action, resourceId, translationId, bookroomCollectionId, title)
                        .then(function (resourceInfo) {
                            showResourceInfo(resourceInfo, siteRequiredAbbrev);
                        }, function (reason) {
                            messageHandler.publishError(
                                'There was an error retrieving the assignment information.  Try again later.')
                        })
                }

                function studentAtTargetedResourceLimit(student) {
                    if (student.is_at_reading_targeted_resource_limit) {
                        return "This student is at the limit of allowed assignable resources."
                    }
                }

                function getReadingProductAbbreviation() {
                    if (FeatureCheck.isFeatureEnabled("RAZ_PLUS_WELDING") && memberInfo.subjects.reading) {
                        return memberInfo.subjects.reading.site_abbrev;
                    }
                    return SiteHelper.RK_SITE_ABBREVIATION;
                }
            }
        ])
        .controller('assignTargetedResourceModal',
            ['close', '$scope', 'resourceInfo', 'resourceSelectionHelper', 'studentList', 'serverTargetedResource', '_', 'messageHandler', 'AuthGo',
                '$window', 'SiteHelper', 'FeatureCheck','assignTargetedResource', 'MessageBox',
                function assignTargetedResourceModalCtrl(close, $scope, resourceInfo, resourceSelectionHelper, studentList, serverTargetedResource,
                     _, messageHandler, AuthGo, $window, SiteHelper, FeatureCheck,assignTargetedResource, MessageBox) {
                    var ctrl = this;

                    ctrl.activityTypesByName = {
                        READ      : 'read',
                        LISTEN    : 'listen',
                        QUIZ      : 'quiz',
                        WORKSHEET : 'worksheet',
                        FORMATIVE_WORKSHEET : 'formative_worksheet'
                    };

                    ctrl.kidsRosterUrl = AuthGo.getUrl('kaz', '/main/students');
                    ctrl.close = ctrl.cancel = close;
                    ctrl.title = resourceInfo.title;

                    ctrl.switchAnyStudents = switchAnyStudents;
                    ctrl.quizSelected = quizSelected;
                    ctrl.isValid = isValid;
                    ctrl.submit = submit;
                    ctrl.areActivitiesDisabled = areActivitiesDisabled;
                    ctrl.isActivityDisabled = resourceSelectionHelper.isActivityDisabled;
                    ctrl.handleResourceSelection = resourceSelectionHelper.handleResourceSelection;
                    ctrl.vocabGameTypes = null;
                    ctrl.selectedVocabularyGameTypes = {};

                    init();

                    function init() {
                        var step = 1;

                        ctrl.activities = angular.copy(resourceInfo.activities);
                        ctrl.resources = angular.copy(resourceInfo.resources);
                        resourceSelectionHelper.initResourceInfo(ctrl.activities, ctrl.resources);
                        var getVocabResources = false;
                        if (ctrl.resources !== undefined && ctrl.resources !== null && ctrl.resources.length === 1 && ctrl.resources[0]["kids_book_id"] !== undefined) {
                            getVocabResources = resourceInfo.translation !== undefined && resourceInfo.translation === "english";
                            getVocabResources = getVocabResources || (ctrl.resources[0]["language_id"] !== undefined && ctrl.resources[0]["language_id"] == 1);
                        }
                        if (getVocabResources) {
                            serverTargetedResource.getVocabGameTypes(ctrl.resources[0]["kids_book_id"])
                                .then(function (results) {
                                    if (results !== undefined && results !== null && results.length > 0) {
                                        _.each(results,function(result) {
                                            result["selected"] = false;
                                            switch (result["gameTypeId"]) {
                                                case 1: result["iconClass"] = "icon-vocabularyC"; break;
                                                case 2: result["iconClass"] = "icon-spellingC"; break;
                                                case 3: result["iconClass"] = "icon-phonicsC"; break;
                                            }
                                        });
                                        ctrl.vocabGameTypes = results;
                                    }
                                }, function (reason) {
                                    console.log(reason);
                                })
                        }

                        ctrl.activities.forEach(function (activityObj) {
                            activityObj.selected = true;
                            activityObj.iconClass = isWorksheetTypeActivity(activityObj.activity_name)
                                ? 'icon-' + activityObj.display_name.toLowerCase() + 'C'
                                : 'icon-' + activityObj.activity_name + 'C';
                        });

                        ctrl.resources.forEach(function (resource) {
                            resource.selected = true;
                        });

                        ctrl.showActivities = ctrl.activities.length;

                        if (ctrl.areActivitiesDisabled() && isFormativeWorksheetOnlyResource()) {
                            ctrl.showActivities = false;
                        }

                        if (ctrl.showActivities) {
                            ctrl.activitiesStep = step++;
                        }

                        ctrl.showResources = ctrl.resources.length > 1;

                        if (ctrl.showResources) {
                            ctrl.resourcesStep = step++;
                        }

                        ctrl.studentsStep = step;

                        studentList.clearSelected();

                        ctrl.constructedResponseEnabled = resourceInfo.constructedResponseEnabled;
                    }

                    document.addEventListener('keyup', checkEscape);

                    $scope.$on('$destroy', function () {
                        document.removeEventListener('keyup', checkEscape)
                    });

                    function switchAnyStudents() {
                        if (studentList.pending) {
                            return "pending";
                        }
                        return studentList.get().length ? "some" : "none";
                    }

                    function filterSelected(collection) {
                        return collection.filter(function (item) {
                            return item.selected;
                        })
                    }

                    function getSelectedActivities() {
                        return filterSelected(ctrl.activities);
                    }

                    function getSelectedResources() {
                        return filterSelected(ctrl.resources);
                    }

                    function getActivitiesToAssign() {
                        if (isFormativeWorksheetOnlyResource()) {
                            return [ctrl.activityTypesByName.FORMATIVE_WORKSHEET];
                        }
                        var activitiesToAssign = [];
                        getSelectedActivities().forEach(function (selectedActivityObj) {
                            if (selectedActivityObj.activities) {
                                selectedActivityObj.activities.forEach(function (activity) {
                                    activitiesToAssign.push(activity);
                                })
                            } else {
                                activitiesToAssign.push(selectedActivityObj.activity_name);
                            }
                        });
                        return activitiesToAssign;
                    }

                    function quizSelected() {
                        return !!_.filter(getSelectedActivities(), function (item) {
                            return item.activity_name === ctrl.activityTypesByName.QUIZ;
                        }).length
                    }

                    function formativeWorksheetResourceSelected() {
                        return !!_.filter(getSelectedResources(), function (resource) {
                            return resource.activities && resource.activities.includes(ctrl.activityTypesByName.FORMATIVE_WORKSHEET);
                        }).length
                    }

                    function quizValid() {
                        if (!quizSelected()) {
                            return true;
                        }
                        if (formativeWorksheetValid()) {
                            return true;
                        }
                        return ctrl.activities.length === 1
                            || getSelectedActivities().length > 1;
                    }

                    function formativeWorksheetValid() {
                        if (!quizSelected()) {
                            return true;
                        }
                        return formativeWorksheetResourceSelected()
                            && getSelectedResources().length === 1
                            && (getSelectedActivities().length === 1 || ctrl.activities.length === 1);
                    }

                    function isFormativeWorksheetOnlyResource() {
                        return ctrl.resources.length === 1
                            && ctrl.resources[0].activities
                            && ctrl.resources[0].activities[0] === ctrl.activityTypesByName.FORMATIVE_WORKSHEET;
                    }

                    function validActivities() {
                        if (resourceInfo.resource_type == 'assessment') {
                            return true;
                        }
                        if (isFormativeWorksheetOnlyResource()) {
                            return true;
                        }
                        if (getSelectedActivities().length < 1 || !quizValid()) {
                            return false;
                        }
                        return anyMatchingActivities();
                    }

                    function anyMatchingActivities() {
                        if (assignTargetedResource.action !== 'getTextSetIds' && assignTargetedResource.action !== 'getHighLowTextSetIds') {
                            return true;
                        }
                        var selectedResources = getSelectedResources();
                        var selectedActivities = getActivitiesToAssign();
                        var foundResource = _.find(selectedResources,function(resource) {
                            var foundActivity = _.find(resource['activities'],function(activity) {
                                return selectedActivities.indexOf(activity) >= 0;
                            });
                            return foundActivity !== undefined;
                        });
                        return foundResource !== undefined;
                    }

                    function isValid() {
                        if (studentList.getSelected().length  < 1 || getSelectedResources().length < 1) {
                            return false;
                        }
                        return validActivities();
                    }

                    function getSelectedVocabGameTypeIds() {
                        var selectedIds = [];
                        _.each(Object.keys(ctrl.selectedVocabularyGameTypes),function(key) {
                            if (ctrl.selectedVocabularyGameTypes[key]) {
                                selectedIds.push(key);
                            }
                        });
                        return selectedIds;
                    }

                    function submit() {
                        console.assert(isValid(), "Invalid submit attempt");
                        if (!isValid()) {
                            return;
                        }
                        if (resourceInfo.resource_type == 'assessment') {
                            serverTargetedResource.addAssessment(getServerAssessment())
                                .then(function () {
                                    messageHandler.publishSuccess('Assessment created. Track progress on the ', 'assignments page.', assignmentRedirect);
                                    close();
                                }, function () {
                                    messageHandler.publishError(
                                        "There was an error adding the assessment. Try again later.")
                                })

                        } else {
                            serverTargetedResource.addAssignment(getServerAssignment())
                                .then(function (response) {
                                    if (response.data.status === "success") {
                                        messageHandler.publishSuccess('Assignment created. Track progress on the ', 'assignments page.', assignmentRedirect);
                                    } else {
                                        messageHandler.publishError('There was an error adding the assignment. Try again later.');
                                    }
                                    close();
                                }, function (error) {
                                    var errorMessage = error.data.message;
                                    if (errorMessage.includes('limit')) {
                                        var studentIds = errorMessage.slice(errorMessage.indexOf(':') + 2, errorMessage.length).split(',');
                                        var studentNames = [];
                                        errorMessage = "The following students have exceeded their resource limit: ";
                                        for (var i = 0; i < studentList.getSelected().length; ++i) {
                                            var currentStudentId = studentList.getSelected()[i].student_id;
                                            if (studentIds.includes(currentStudentId)) {
                                                studentNames.push(studentList.getSelected()[i].student_name);
                                            }
                                        }
                                        errorMessage += studentNames.join(', ');

                                        MessageBox.show({
                                            message: errorMessage,
                                            responses: [
                                                {
                                                    id: 'ok',
                                                    confirm: true,
                                                    label: 'OK'
                                                }
                                            ]
                                        }).then(function (response) {
                                            ctrl.messageBoxOpen = false;
                                        },function (reason) {
                                            alert(errorMessage);
                                        });
                                    } else {
                                        messageHandler.publishError('There was a problem processing your request.');
                                    }
                                })
                        }
                    }

                    function assignmentRedirect() {
                        $window.location.href = AuthGo.getUrl(SiteHelper.KAZ_SITE_ABBREVIATION, '/main/Assign/action/readingPractice');
                    }

                    function getServerAssignment() {
                        var serverAssignment = {
                            activities: getActivitiesToAssign(),
                            resources: getSelectedResources().map(function (resource) {

                                return _.pick(resource, 'kids_book_id','activities')
                            }),
                            students: studentList.getSelected().map(function (student) {
                                return _.pick(student, 'student_id')
                            }),
                            bookroom_collection_id: resourceInfo.bookroom_collection_id,
                            constructed_response_enabled: ctrl.constructedResponseEnabled,
                            due_on: ctrl.dueOn,
                            action: assignTargetedResource.action,
                            selectedVocabGameTypeIds: getSelectedVocabGameTypeIds()
                        };
                        if (resourceInfo['resourceId'] !== undefined) {
                            serverAssignment['resourceId'] = resourceInfo['resourceId'];
                        }
                        if (resourceInfo['resource_type'] !== undefined) {
                            serverAssignment['resource_type'] = resourceInfo['resource_type'];
                        }
                        return serverAssignment;
                    }

                    function getServerAssessment() {
                        return {
                            kids_book_id: ctrl.resources[0].kids_book_id,
                            students: studentList.getSelected().map(function (student) {
                                return _.pick(student, 'student_id')
                            })
                        }
                    }

                    function checkEscape(event) {
                        if (event.key === "Escape") {
                            close();
                        }
                    }

                    function areActivitiesDisabled() {
                        return ctrl.activities.length === 1
                    }

                    function isWorksheetTypeActivity(activityName) {
                        return activityName === ctrl.activityTypesByName.WORKSHEET || activityName === ctrl.activityTypesByName.FORMATIVE_WORKSHEET;
                    }

                    ctrl.htmlToPlaintext = function(text) {
                        return text ? String(text).replace(/<[^>]+>/gm, '') : '';
                    };
                }
            ]);
})();