/**
 * Survey response submission handler controller.
 */
angular.module('kalgudiApp.surveys').controller('surveyResponseController',
    ['$scope', '$state', '$rootScope', 'kalgudiLiterals', '$injector', 'surveyServices', 'helpandlegalservice', "Upload",
        function ($scope, $state, $rootScope, kalgudiLiterals, $injector, surveyService, helpandlegalservice, Upload) {



            /**
             * Checking the user device mobile/Desktop
             */


            if (!IS_MOBILE_DEVICE) {

                $uibModal = $injector.get('$uibModal');

            } else {

                $ionicModal = $injector.get('$ionicModal');

                lazysync = $injector.get('lazysync');

                $scope.modal = $ionicModal.fromTemplateUrl($rootScope.themebasepathvalue + 'surveys/assist-member-modal.html', {
                    scope: $scope,
                    animation: 'slide-in-up',
                }).then(function (modal) {
                    $scope.modal = modal;
                });

            }



            /**
             * Survey response submission fields
             */

            //  Different question types
            $scope.QUESTION_TYPE = {
                YES_NO: 'YES_NO',
                TEXT: 'TEXT',
                RATING: 'RATING',
                DATE: 'DATE',
                MULTIPLE_CHOICE_QUESTION: 'MULTIPLE_CHOICE_QUESTION',
                MULTIPLE_CHOICE_SELECTION: 'MULTIPLE_CHOICE_SELECTION',
            };

            $scope.surveyId;
            $scope.surveyDetails;

            /**
             * Tells the max length of character that user can give for a text answer.
             */
            var textLength = 2000;
            $scope.textLength = textLength;

            // Flags for survey submission
            $scope.isSurveyExpired = false;
            $scope.isSubmitted = false;
            $scope.isResubmittable = false;
            $scope.isDisabled = false;
            $scope.canSubmit = false;
            $scope.isAssisted = false;


            // User response
            $scope.surveyResponse = [];


            //isAdmin flag got from $state.params
            $scope.isAdmin = $state.params.adminFlag;


            $scope.selectedQuestionToAddMedia;


            /**
             * Initializes survey response controller variables
             */
            $scope.init = function () {
                try {
                    $scope.surveyId = $state.params.surveyId;
                    $scope.profileId = $state.params.profileId || $rootScope.loggedInUserBusinessProfile.profileKey;
                    $scope.isAssisted = ($state.params.isAssisted == 'assist');
                    $scope.currentQuestionIndex = 0;
                    $scope.isAttachmentsRequired = false;

                    // if ($scope.isAssisted) $scope.getTargettedMembers();

                    $scope.getSurvey();
                } catch (e) {
                    console.log('Unable to initialize survey response submission page.', e);
                }
            };




            /* ------------------------- DECLARE FUNCTIONS BELOW ------------------------- */

            /**
             * Gets, survey details from service.
             */
            $scope.getSurvey = function () {

                // You cannot do anything without survey ID
                if (!$scope.surveyId) {
                    console.log('Cannot get survey details without survey ID.');
                    return;
                }

                $rootScope.spinerisActive = true;

                // Get survey details from service
                surveyService.getSurveyDetails($scope.surveyId, $scope.profileId).then(
                    function (res) {
                        // res = JSON.parse(localStorage['s2']);

                        // Get data if response is OK
                        if (res.code == 200 || res.code == 201) {
                            try {
                                $scope.surveyDetails = JSON.parse(res.data);
                            } catch (e) {
                                $scope.surveyDetails = res.data;
                            }

                            $scope.isSurveyUnderProgram = typeof $scope.surveyDetails.entityId !== 'undefined';

                            // Trim the expiry date
                            $scope.surveyDetails.expiryDate = new Date($scope.surveyDetails.expiryDate.split(' ')[0]);

                            // Check survey submission status once survey details are ready
                            $scope.checkSurveySubmission();

                            $scope.createSurveyResponse($scope.surveyDetails.questions);

                            if ($scope.isAssisted) $scope.getTargettedMembers();
                        }

                        $rootScope.spinerisActive = false;
                    },
                    function (err) {
                        console.log('Unable to get survey details for ID = ' + $scope.surveyId, err);
                        $rootScope.spinerisActive = false;
                    }
                );
            };


            /**
             * Survey text responses may have two different structure.
             * Old structure: 
             * `response: "",`
             * New structure: 
             * `response: {
             *      text: "",
             *      attachments: []
             * }`
             * 
             * All previous surveys responses have old response structure. 
             * This function converts both the response type to single structure.
             * It will convert previous response structure to new response structure.
             * 
             * @param {any} question Survey question object
             */
            $scope.getNormalizedSurveyTextResponse = function (question) {

                // Only normalize text responses,
                // for rest of the question types return the answer
                if (question.questionType !== $scope.QUESTION_TYPE.TEXT && question.questionType !== $scope.QUESTION_TYPE.DATE) {
                    return question.answer;
                }

                if (typeof question.answer === 'undefined') {
                    return {
                        text: '',
                        attachments: []
                    }
                } else if (typeof question.answer === 'string') {
                    return {
                        text: question.answer,
                        attachments: []
                    };
                } else {
                    return question.answer;
                }
            };


            /**
             * Checks whether the user can submit survey or not.
             */
            $scope.checkSurveySubmission = function () {

                // Survey details not available hence, cannot check
                if (!$scope.surveyDetails) return;


                // Raise survey expiry flag
                $scope.isSurveyExpired = (new Date() > $scope.surveyDetails.expiryDate);

                // User already submitted survey or not
                $scope.isSubmitted = $scope.surveyDetails.isResponded;

                // Raise survey re-submission flag
                $scope.isResubmittable = $scope.surveyDetails.isResubmittable;

                $scope.isDisabled = $scope.surveyDetails.isDisabled;


                // User can submit a survey if and only if
                // its not expired and
                // if not submitted else
                // if submitted then its re-submittable
                $scope.canSubmit = (!$scope.isSurveyExpired && (!$scope.isSubmitted || $scope.isResubmittable));
                $scope.canSubmit = $scope.canSubmit && ($scope.isAssisted || $scope.profileId == $rootScope.loggedInUserBusinessProfile.profileKey);
            };


            /**
             * Prepare survey user response object with all questions and selected answers.
             * @param {any[]} questions List of all questions
             * @param {any} response User response
             */
            $scope.createSurveyResponse = function (questions) {

                // Do nothing if you dont have any questions
                if (!questions) return;


                // Filter out duplicates
                questions.forEach(function (q) {
                    if (q.questionType == $scope.QUESTION_TYPE.MULTIPLE_CHOICE_QUESTION) {

                        q.options = q.options.filter(function (item, pos) {
                            return q.options.indexOf(item) == pos;
                        })
                    }
                });

                // Copy all questions to survey response
                $scope.surveyResponse = questions;



                // If there is response
                // if (response && response.answers) {
                //     // Actual answers is in 0th element of answers field
                //     response.answers = response.answers[0];

                // For each element in survey responses
                $scope.surveyResponse.forEach(function (q) {

                    // Assign answers to questions
                    try {
                        q.response = $scope.getNormalizedSurveyTextResponse(q);

                        if (q.questionType === $scope.QUESTION_TYPE.DATE) {
                            if (q.response && q.response.text) {
                                q.response.text = new Date(q.response.text);

                                // Check for invalid date
                                if (q.response.text instanceof Date && isNaN(q.response.text)) {
                                    q.response.text = '';
                                }
                            }
                        }
                    }
                    catch (e) { console.log(e); }
                });
                // } else {
                //     $scope.surveyResponse.forEach(function (q) { 
                //         q.response = '';
                //     });
                // }
            };


            /**
             * Sets, rating to a rating type question in survey.
             * @param {any} question Question in which rating response to set.
             * @param {number} rating Rating to set.
             */
            $scope.updateRating = function (question, rating) {

                // Update rating if you have question obj
                if (question) question.response = rating;

                console.log(question);
            };


            /**
             * Toggle current selected option in the question response.
             * 
             * @param {any} question Question object
             * @param {string} option Current selected option
             */
            $scope.toggleMultipleSelection = function (question, option) {

                // If already selected then remove it from selection
                // Else push option in selected response list
                (question.response.indexOf(option) >= 0)
                    ? question.response.splice(question.response.indexOf(option), 1)
                    : question.response.push(option);
            }


            /**
             * Checks, if current option is selected or not in MCS.
             * 
             * @param {any} question Question object
             * @param {string} option Current selected option.
             * @returns Returns true if selected otherwise false.
             */
            $scope.isSelected = function (question, option) {
                return (question.response.indexOf(option) >= 0);
            }


            /**
             * Submit all survey responses to server.
             */
            $scope.submitSurvey = function () {

                $rootScope.spinerisActive = true;

                const requestPayload = {
                    "surveyId": $scope.surveyId,
                    "answers": {},
                    "respondedTS": new Date(),
                    "userId": $scope.assistantDetails.profileKey || $rootScope.loggedInUserBusinessProfile.profileKey,
                    "userName": $scope.assistantDetails.firstName || $rootScope.loggedInUserBusinessProfile.firstName,
                };

                if ($scope.isAssisted) {
                    requestPayload.assistantDetails = {
                        profileKey: $rootScope.loggedInUserBusinessProfile.profileKey,
                        firstName: $rootScope.loggedInUserBusinessProfile.firstName,
                        profilePicURL: $rootScope.loggedInUserBusinessProfile.profilePicUrl,
                    }
                }
                $scope.surveyResponse.forEach(function (res) {

                    var response = '';

                    if (Array.isArray(res.response)) {
                        response = res.response.join(", ");
                    } else {
                        if (typeof res.response === 'undefined' || typeof res.response.text === 'undefined') {
                            response = typeof res.response !== 'undefined' ? res.response + "" : '';
                        } else {

                            try {
                                if (res.questionType === $scope.QUESTION_TYPE.DATE) {
                                    const d = new Date(res.response.text);
                                    res.response.text = (d.getYear() + 1900) + '-' + (d.getMonth() + 1) + '-' + (d.getDate());
                                }

                                if (IS_MOBILE_DEVICE) {
                                    delete res.datePicker;
                                } else {
                                    // delete
                                }
                            } catch (e) {
                                throw e;
                            }


                            response = res.response;
                        }
                    }

                    // if (res.responseAttachment) {
                    //     requestPayload.answers[res.id] = {
                    //         text: response, 
                    //         attachments: res.responseAttachment
                    //     };
                    // } else {
                    // }
                    requestPayload.answers[res.id] = response || '';

                });


                // Allow offline survey submissions if network is not available
                if (!$rootScope.networkAvaliable && IS_MOBILE_DEVICE) {

                    lazysync.addToStaging(requestPayload, lazysync.STAGING_TYPE.SURVEYS);

                    $rootScope.commonTopErrorAlert('Your survey submission will be synced later when network comes back.');

                    $rootScope.spinerisActive = false;
                    history.back();

                    return;
                }


                // Submit the survey
                surveyService.submitSurvey(requestPayload, $scope.isSubmitted).then(
                    function (res) {
                        const msg = $scope.isSubmitted ? 'Survey response updated.' : 'Survey response submitted.'

                        if (IS_MOBILE_DEVICE) {

                            $rootScope.showAlertBox(msg, 'Response submitted');

                        } else {

                            $rootScope.showSuccessMessage(msg, '', 4000);

                        }

                        $rootScope.spinerisActive = false;

                        // Update survey details
                        // $scope.getSurvey();
                        window.history.back();
                    },
                    function (err) {
                        console.log(err);
                        $rootScope.spinerisActive = false;
                    }
                );

            }


            /**
             * Opens already submitted answers attachment image fullview.
             * 
             * @param {any} question
             */
            $scope.openSubmittedAnswerAttachmentFullview = function (question) {

                const message = {
                    lstOfAttachments: question.response.attachments,
                };

                $scope.openImageFullview(message);
            };


            /**
             * Opens new answer attachment image fullview.
             * 
             * @param {any} question
             */
            $scope.openAnswerAttachmentFullview = function (question) {

                const message = {
                    lstOfAttachments: question.responseAttachment,
                };

                $scope.openImageFullview(message);
            };


            /**
             * Opens question attachment image fullview.
             * 
             * @param {any} question
             */
            $scope.openQuestionAttachmentFullview = function (question) {

                const message = {
                    lstOfAttachments: question.attachments,
                };

                $scope.openImageFullview(message);
            };


            /**
             * Opens default kalgudi image fullview dialog.
             * 
             * @param {any} attachments
             */
            $scope.openImageFullview = function (attachments) {


                const modalInstance = $uibModal.open({
                    templateUrl: 'webapp/themes/html/newsFeed/shareAthoughtFullview.html',
                    controller: 'sharefullviewController',
                    size: 'md',
                    windowClass: 'share-full',
                    resolve: {
                        items: function () {
                            return attachments;
                        }
                    }
                });
            }


            /**
             * Sets, selected question to add a media attachment. Later 
             * after uploading media to s3, the uploaded media will get injected
             * to this selected question.
             * 
             * @param {any} question 
             */
            $scope.attachMedia = function (question) {
                $scope.selectedQuestionToAddMedia = question;
            }


            if (IS_MOBILE_DEVICE) {

                $rootScope.$on("uploadedS3URL", function (event, objectS3URL) {

                    if ($scope.selectedQuestionToAddMedia) {

                        // $scope.selectedQuestionToAddMedia.response = typeof $scope.selectedQuestionToAddMedia.responseAttachment === 'object' && 
                        //                                                         Array.isArray($scope.selectedQuestionToAddMedia.responseAttachment) 
                        //                                                             ? $scope.selectedQuestionToAddMedia.responseAttachment 
                        //                                                             : [];

                        delete objectS3URL.localFile;
                        delete objectS3URL.size;
                        delete objectS3URL.name;

                        // Add geo tagging
                        var lat = "";
                        var long = "";
                        if (Array.isArray(LATITUDELONGITUDEVALUES) && LATITUDELONGITUDEVALUES.length >= 2) {
                            lat = LATITUDELONGITUDEVALUES[0];
                            long = LATITUDELONGITUDEVALUES[1];
                        }
                        objectS3URL.geoLocation = {
                            latitude: lat,
                            longitude: long
                        };

                        $scope.selectedQuestionToAddMedia.response.attachments.push(objectS3URL);
                    }
                });

                /* Mobile date picker */


                const datePicker = {
                    todayLabel: 'Today',
                    closeLabel: 'Close',
                    inputDate: new Date(),
                    step: "1",
                    format: "12",
                    callback: function (val) {
                        datePickerCallback(val);
                    }
                }


                var datePickerCallback = function (val) {
                    if (typeof (val) === 'undefined') {
                    } else {
                        // $scope.surveyObject.expiryDate = val;
                        $scope.datePicker.inputDate = val; s
                        // $scope._selectedQuestion.response.text = val;
                    };
                }

                $scope.injectDatePickerObjectToQuestion = function (question) {

                    question.datePicker = {
                        todayLabel: 'Today',
                        closeLabel: 'Close',
                        inputDate: new Date(),
                        step: "1",
                        format: "12",
                        callback: function (val) {
                            if (typeof (question.response) === 'undefined') {
                                question.response = {
                                    text: '',
                                    attachments: []
                                };
                            }

                            question.response.text = val;
                        }
                    };
                }

                /* Mobile date picker ends */
            } else {

                /**
                 * Uploads and attaches multiple images to a question.
                 */
                $scope.attachImageWeb = function(question,doucumentType){
                    var tempObj = {
                        uploadType: doucumentType,
                    }

                    // tempObj.uploadType = 'IMAGE';

                    var modalInstance = $uibModal.open({
                        templateUrl: $rootScope.themebasepathvalue + 'shared/uploadMultimedia.html',
                        controller: 'uploadMultimediaController',
                        windowClass: 'app-modal-window',
                        size: 'lg',
                        resolve: {
                            items: function () {
                                return tempObj;
                            }
                        }
                    });
                    // uploadedMedia will contain all uploaded objects as an array
                    modalInstance.result.then(function (uploadedMedia) {

                        // question.responseAttachment = typeof question.responseAttachment === 'object' && Array.isArray(question.responseAttachment) ? question.responseAttachment : [];

                        for(i in uploadedMedia){

                            try {
                                // Delete unnecessary files
                                delete uploadedMedia[i].name;
                                delete uploadedMedia[i].size;

                                // Append http/s if not exists
                                if (!uploadedMedia[i].url.includes(env.secure)) {
                                    uploadedMedia[i].url = env.secure + uploadedMedia[i].url;
                                }

                                // Add geo tagging
                                var lat = "";
                                var long = "";
                                if (Array.isArray(LATITUDELONGITUDEVALUES) && LATITUDELONGITUDEVALUES.length >= 2) {
                                    lat = LATITUDELONGITUDEVALUES[0];
                                    long = LATITUDELONGITUDEVALUES[1];
                                }

                                uploadedMedia[i].geoLocation = {
                                    latitude: lat,
                                    longitude: long
                                };

                            } catch (e) {
                                console.warn('Unable to attach images to survey question', e);
                            }

                            question.response.attachments = typeof question.response.attachments !== 'undefined' ? question.response.attachments : [];

                            question.response.attachments.push(uploadedMedia[i]);
                        }
                    });
                };

                // $scope.attachImageWeb = function (question, index) {
                //     $scope.isAttachmentsRequired = !$scope.isAttachmentsRequired;
                //     $scope.currentQuestionIndex = index;
                // }
                // function getFileExtention(filename) {
                //     return filename.split('.').pop();
                // }


                // $scope.onFileSelected = function ($files, $file, $newFiles, $duplicateFiles, $invalidFiles, $event) {
                //     $scope.currentFileDetails = $files;
                //     helpandlegalservice.uploadS3Policy('businessTrace', $files[0].type).then(function (result) {
                //         $scope.policyData = result;
                //         $scope.compressTraceAttachmentsAndUpLoad($file, $files);
                //     });
                // }
                // $scope.compressTraceAttachmentsAndUpLoad = function (tempFile, files) {
                //     var constructedName = $rootScope.loggedInUserBusinessProfile.profileKey + '_' + Math.floor(new Date() / 100) + '.' + getFileExtention(files[0].name);

                //     Upload.upload({
                //         url: ATTACH_BUCKETNAME,
                //         method: 'POST',
                //         data: {
                //             key: 'data/TRACE/' + constructedName, // the key to store the file on S3, could be file name or customized
                //             AWSAccessKeyId: 'AKIAJPKIEGQPZLTARDXQ',
                //             acl: 'public-read', // sets the access to the uploaded file in the bucket: private, public-read, ...
                //             policy: $scope.policyData.policy, // base64-encoded json policy (see article below)
                //             signature: $scope.policyData.signature, // base64-encoded signature based on policy string (see article below)*/
                //             "Content-Type": tempFile.type != '' ? tempFile.type : 'application/octet', // content type of the file (NotEmpty)
                //             // this is needed for Flash polyfill IE8-9
                //             file: tempFile
                //         }
                //     }).progress(function (evt) {
                //         $scope.spinnerPicUpload = true;
                //     }).success(function (data, status, headers, config) {
                //         var request = {
                //             "attachmentType": 'gallery',
                //             "attachmentStatus": true
                //         }

                //         $scope.uploadFileUrl = SERVER_IP + "/data/TRACE/" + constructedName;

                //         console.log($scope.uploadFileUrl);
                //         var fileFormats = ["jpg", "png", "pdf", "txt", "doc", "docx", "xlsx", "ppt", "pptx", "jpeg", "gif", "3gpp", "quicktime", "wav", "tiff"];
                //         var checkfiletypes = "";
                //         var checkfilesize = "";
                //         if (files.length != 0) {
                //             for (index in files) {
                //                 $scope.attachmentName = files[index].name;
                //                 var filename = files[index].name.split(".");
                //                 filename = filename.length == 2 ? filename[1].toLowerCase() : "";
                //                 if (fileFormats.indexOf(filename) > -1) {
                //                 } else {
                //                     checkfiletypes = "notsupported";
                //                 }
                //                 if (files[index].size > 2097152) {
                //                     checkfilesize = "notSupportedSize";
                //                 }
                //             }
                //         }
                //         if (checkfilesize != "notSupportedSize" && checkfiletypes != "notsupported") {
                //             $scope.status = true;
                //             if ($scope.surveyResponse[$scope.currentQuestionIndex].response.hasOwnProperty("attachments")) {
                //                 $scope.surveyResponse[$scope.currentQuestionIndex].response.attachments.push({
                //                     "url": $scope.uploadFileUrl,
                //                     "context": "Attachment",
                //                     "msgType": filename,
                //                     'name': $scope.attachmentName,
                //                     'size': files[0].type,
                //                     "geoLocation":
                //                     {
                //                         "latitude": "",
                //                         "longitude": ""
                //                     }
                //                 });
                //             }
                //             else {
                //                 $scope.surveyResponse[$scope.currentQuestionIndex].response.attachments = [];
                //                 $scope.surveyResponse[$scope.currentQuestionIndex].response.attachments.push({
                //                     "url": $scope.uploadFileUrl,
                //                     "context": "Attachment",
                //                     "msgType": files[0].size,
                //                     'name': $scope.attachmentName,
                //                     'size': files[0].type,
                //                     "geoLocation":
                //                     {
                //                         "latitude": "",
                //                         "longitude": ""
                //                     }
                //                 });
                //             }

                //         }
                //         if (checkfilesize == "notSupportedSize") {
                //             alert($scope.profileLiterals.searchByKey('KL_upload_0005'));
                //         }
                //         if (checkfiletypes == "notsupported") {
                //             alert($scope.profileLiterals.searchByKey('KL_CNTS_0123'));
                //         }
                //     }).error(function (data, status, headers, config) {

                //         var request = {
                //             "attachmentType": 'gallery',
                //             "attachmentStatus": false
                //         }
                //     });
                // }

                /* Web date picker */
                $scope.datevar = {
                    fromDate: new Date(),
                    toDate: new Date()
                }

                $scope.dateFormat = 'dd, MMM yyyy';

                $scope.datePickerOptions = {
                    formatYear: 'yy',
                    startingDay: 1,
                    minDate: new Date(1995, 5, 22),
                    maxDate: new Date(2030, 5, 22)
                };

                $scope.openDatePicker = function (question, indexDate) {
                    question._showDatePicker = !question._showDatePicker;
                };

                $scope.datePickerDateChanged = function (date) {
                    console.log(date);
                };
                /* Web date picker ends */
            }




            /* ------------------------- DIGITAL ASSISTANCE METHODS --------------------------- */

            $scope.assistMemberModal = {
                title: 'Select member',
            };

            $scope.searchAssistedMember = '';
            $scope.assistantDetails = {};

            $scope.surveyMembers = [];
            $scope.filterSurveyMembers = $scope.surveyMembers;


            $scope.openMembersDialog = function () {
                $scope.modal.show();
            };

            $scope.closeAssistedMemberModal = function () {
                $scope.modal.hide();
            }


            $scope.selectMember = function (user) {
                $scope.assistantDetails = user;
            }

            $scope.filterUsers = function (filter) {
                try { filter = filter.toLowerCase(); }
                catch (e) { }

                $scope.filterSurveyMembers = $scope.surveyMembers.filter(function (member) {
                    if ((member.firstName && member.firstName.toLowerCase().includes(filter)) ||
                        (member.location && member.location.includes(filter)))
                        return member;
                });
            };

            $scope.getTargettedMembers = function () {

                $rootScope.spinerisActive = true;

                function addMembers(res) {
                    $rootScope.spinerisActive = false;

                    try {
                        $scope.surveyMembers = JSON.parse(res.data);
                    } catch (e) {
                        $scope.surveyMembers = res.data;
                    }

                    $scope.filterSurveyMembers = $scope.surveyMembers;

                    console.log($scope.surveyMembers);
                }


                if ($scope.isSurveyUnderProgram) {

                    surveyService.getMembersOfSurveyUnderProgram($scope.surveyId, 0).then(
                        function (res) {

                            addMembers(res);
                        },
                        function (err) {
                            $rootScope.spinerisActive = false;
                            console.log('Unable to get survey details.', err);
                        }
                    );

                } else {

                    surveyService.getMembers($scope.surveyId, 0).then(
                        function (res) {
                            // $rootScope.spinerisActive = false;

                            // try {
                            //     $scope.surveyMembers = JSON.parse(res.data);
                            // } catch (e) {
                            //     $scope.surveyMembers = res.data;
                            // }

                            // $scope.filterSurveyMembers = $scope.surveyMembers;

                            // console.log($scope.surveyMembers);

                            addMembers(res);
                        },
                        function (err) {
                            $rootScope.spinerisActive = false;
                            console.log('Unable to get survey details.', err);
                        }
                    );
                }
            };


            $scope.constructProfilePicUrl = function (profileKey) {
                if (!profileKey) return '';

                const BASE_URL = window.location.origin;
                const URL = BASE_URL + '/data/profilepics/' + profileKey + '.png?1519119679507';

                return URL;
            };

            $scope.downloadAttachment = function (attachment) {
                if (attachment.hasOwnProperty('url')) {
                    var a = document.createElement('a');
                    a.href = attachment.url;
                    a.download = attachment.url;
                    //a.target = '_blank';
                    a.click();
                }
            }




            // Initialize survey response page.
            $scope.init();
        }
    ]);