(function () {
    "use strict";

    angular
        .module('shared')
        .controller('unitAssignmentModal', unitAssignmentModal);

    unitAssignmentModal.$inject = ['$scope', 'close', 'unitAssignmentInfo', 'AuthGo', 'studentList', 'unitAssignment', 'messageHandler', 'RKConstants', 'windowService', 'SiteHelper', 'MessageBox'];
    function unitAssignmentModal($scope, close, unitAssignmentInfo, AuthGo, studentList, unitAssignment, messageHandler, RKConstants, windowService, SiteHelper, MessageBox) {
        var ctrl = this;
        var maxResourceLimit = 100;
        ctrl.cancel = ctrl.close = function() {
            studentList.clearSelected();
            close();
        };
        ctrl.unitAssignmentInfo = unitAssignmentInfo;
        ctrl.kidsRosterUrl = AuthGo.getUrl('kaz', '/main/students');
        ctrl.constructedResponseEnabled = false;
        ctrl.selectedEnglishMaterialTypes = {};
        ctrl.selectedSpanishMaterialTypes = {};
        ctrl.selectedVocabularyGameTypes = {};
        ctrl.vocabularyGameTypes = unitAssignmentInfo.vocabulary_game_types !== undefined &&
                                   unitAssignmentInfo.vocabulary_game_types !== null &&
                                   unitAssignmentInfo.vocabulary_game_types.length > 0 ? unitAssignmentInfo.vocabulary_game_types : null;

//console.log(ctrl.vocabularyGameTypes);

        ctrl.selectedMaterials = {};
        ctrl.englishLanguageId = RKConstants.ENGLISH_LANGUAGE_ID;
        ctrl.spanishLanguageId = RKConstants.SPANISH_LANGUAGE_ID;
        getMaterialTypesForLanguage();
        initializeSelections();

        ctrl.switchAnyStudents = switchAnyStudents;
        ctrl.isValid = isValid;
        ctrl.submit = submit;

        function getMaterialTypesForLanguage() {
            ctrl.englishMaterialTypes = _.filter(ctrl.unitAssignmentInfo.unit_material_types, function(materialType) {
                return materialType.languages.indexOf(ctrl.englishLanguageId) != -1;
            });
            ctrl.spanishMaterialTypes = _.filter(ctrl.unitAssignmentInfo.unit_material_types, function(materialType) {
                return materialType.languages.indexOf(ctrl.spanishLanguageId) != -1;
            });
        }

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

        function isValid() {
            return studentList.getSelected().length && hasAnySelectedMaterialTypes() && isValidISLParts();
        }

        function submit() {
            MessageBox.show({
                message: 'Change student assignment? Changing the student assignment will erase all progress on the current assignment.',
                responses: [
                    {id: 'nope', subtle: true, label: 'No'},
                    {id: 'confirm', confirm: true,label: 'Yes'}
                ]
            }).then(function (response) {
                if (response.id === 'confirm') {
                    if(isValid()) {
                        updateScienceAssignment();
                    }
                    else {
                        console.assert(isValid(), "Invalid submit attempt");
                    }
                } else if (response.id === 'nope') {
                    ctrl.close();
                }
            });
        }

        function initializeSelections() {
            _.each(ctrl.englishMaterialTypes, function (englishMaterialType) {
                ctrl.selectedEnglishMaterialTypes[englishMaterialType.material_type_id] = true;
            });
            _.each(ctrl.unitAssignmentInfo.unit_interactive_lessons.lessonParts, function (interactiveLessonPart) {
                ctrl.selectedMaterials[interactiveLessonPart.material.id] = true;
            });
        }

        function hasAnySelectedMaterialTypes() {
            var hasEnglishMaterialTypeSelected = _.find(ctrl.selectedEnglishMaterialTypes, function(materialType) {return materialType;});
            var hasSpanishMaterialTypeSelected = _.find(ctrl.selectedSpanishMaterialTypes, function(materialType) {return materialType;});
            return hasEnglishMaterialTypeSelected || hasSpanishMaterialTypeSelected;
        }

        function isValidISLParts() {
            return !ctrl.selectedEnglishMaterialTypes[93] || getSelectedMaterials().length > 0;
        }

        function getSelectedMaterials() {
            if(!ctrl.selectedEnglishMaterialTypes[93]) {
                return [];
            }
            var selected = [];
            _.each(ctrl.selectedMaterials, function(enabled, materialId) {
                if(enabled) selected.push(materialId);
            });
            return selected;
        }

        function updateScienceAssignment() {
            var limitLookup = null;
            var studentIDsAsDelimitedString = "";
            for (var i = 0; i < studentList.getSelected().length; i++) {
                var studentId = studentList.getSelected()[i].student_id;
                studentIDsAsDelimitedString = studentIDsAsDelimitedString + studentId + ",";
            }
            if (studentIDsAsDelimitedString.length < 1) {
                studentIDsAsDelimitedString = 0;
            } else {
                studentIDsAsDelimitedString = studentIDsAsDelimitedString.slice(0, -1);
            }

            unitAssignment.getStudentResourceLimit(studentIDsAsDelimitedString).then(function (response) {
                limitLookup = JSON.parse(response.data);
            });

            unitAssignment.updateMultipleScienceIndividualAssignment(_.pluck(studentList.getSelected(), 'student_id'), compileDataForRequest())
                .then(function() {
                    messageHandler.publishSuccess('Assignment created. Track progress on the ', 'assignments page.', assignmentRedirect);
                    ctrl.close();
                }, function(error) {
                    var errorMessage = error.data.message;
                    if (errorMessage.includes('limit')) {
                        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 (limitLookup[currentStudentId] >= maxResourceLimit) {
                                var student = studentList.getSelected()[i];
                                errorMessage = errorMessage + student.student_name + ", ";
                            }
                        }
                        errorMessage = errorMessage.slice(0, -2);

                        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 an error adding the assignment. Try again later.');
                    }
                });
        }

        function assignmentRedirect() {
            windowService.redirect(AuthGo.getUrl(SiteHelper.KAZ_SITE_ABBREVIATION, '/main/Assign/action/readingPractice#!/tabs/science'));
        }

        function compileDataForRequest() {
            return {
                is_enabled: true,
                constructedResponseEnabled: ctrl.constructedResponseEnabled,
                scienceIndividualAssignment: ctrl.unitAssignmentInfo.unit_id,
                scienceIndividualAssignmentConfig: JSON.stringify(getScienceIndividualAssignmentConfig()),
                scienceIndividualAssignmentConfigMaterials: JSON.stringify(getSelectedMaterials()),
                vocabGameTypeIds: JSON.stringify(getSelectedVocabGameTypeIds())
            };
        }

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

        function getScienceIndividualAssignmentConfig() {
            return _.reduce(ctrl.unitAssignmentInfo.unit_material_types, function(memo, materialType) {
                var materialTypeId = materialType.material_type_id;
                var assignmentMaterialTypeConfig = {
                    materialTypeID: materialTypeId,
                    isChecked: ctrl.selectedEnglishMaterialTypes[materialTypeId] || ctrl.selectedSpanishMaterialTypes[materialTypeId],
                    isEnglishChecked: !!ctrl.selectedEnglishMaterialTypes[materialTypeId],
                    isSpanishChecked: !!ctrl.selectedSpanishMaterialTypes[materialTypeId]
                };
                if(assignmentMaterialTypeConfig.isEnglishChecked || assignmentMaterialTypeConfig.isSpanishChecked) memo.push(assignmentMaterialTypeConfig);
                return memo;
            }, []);
        }
    }
})();