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This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle. If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * This module updates the UI during an asynchronous\n * backup or restore process.\n *\n * @module backup/util/async_backup\n * @package core\n * @copyright 2018 Matt Porritt <mattp@catalyst-au.net>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since 3.7\n */\ndefine(['jquery', 'core/ajax', 'core/str', 'core/notification', 'core/templates'],\n function($, ajax, Str, notification, Templates) {\n\n /**\n * Module level constants.\n *\n * Using var instead of const as ES6 isn't fully supported yet.\n */\n var STATUS_EXECUTING = 800;\n var STATUS_FINISHED_ERR = 900;\n var STATUS_FINISHED_OK = 1000;\n\n /**\n * Module level variables.\n */\n var Asyncbackup = {};\n var checkdelayoriginal = 15000; // This is the default time to use.\n var checkdelay = 15000; // How often we should check for progress updates.\n var checkdelaymultipler = 1.5; // If a request fails this multiplier will be used to increase the checkdelay value\n var backupid; // The backup id to get the progress for.\n var contextid; // The course this backup progress is for.\n var restoreurl; // The URL to view course restores.\n var typeid; // The type of operation backup or restore.\n var backupintervalid; // The id of the setInterval function.\n var allbackupintervalid; // The id of the setInterval function.\n var allcopyintervalid; // The id of the setInterval function.\n var timeout = 2000; // Timeout for ajax requests.\n\n /**\n * Helper function to update UI components.\n *\n * @param {string} backupid The id to match elements on.\n * @param {string} type The type of operation, backup or restore.\n * @param {number} percentage The completion percentage to apply.\n */\n function updateElement(backupid, type, percentage) {\n var percentagewidth = Math.round(percentage) + '%';\n var elementbar = document.querySelectorAll(\"[data-\" + type + \"id=\" + CSS.escape(backupid) + \"]\")[0];\n var percentagetext = percentage.toFixed(2) + '%';\n\n // Set progress bar percentage indicators\n elementbar.setAttribute('aria-valuenow', percentagewidth);\n elementbar.style.width = percentagewidth;\n elementbar.innerHTML = percentagetext;\n }\n\n /**\n * Updates the interval we use to check for backup progress.\n *\n * @param {Number} intervalid The id of the interval\n * @param {Function} callback The function to use in setInterval\n * @param {Number} value The specified interval (in milliseconds)\n * @returns {Number}\n */\n function updateInterval(intervalid, callback, value) {\n clearInterval(intervalid);\n return setInterval(callback, value);\n }\n\n /**\n * Update backup table row when an async backup completes.\n *\n * @param {string} backupid The id to match elements on.\n */\n function updateBackupTableRow(backupid) {\n var statuscell = $('#' + backupid + '_bar').parent().parent();\n var tablerow = statuscell.parent();\n var cellsiblings = statuscell.siblings();\n var timecell = cellsiblings[1];\n var timevalue = $(timecell).text();\n var filenamecell = cellsiblings[0];\n var filename = $(filenamecell).text();\n\n ajax.call([{\n // Get the table data via webservice.\n methodname: 'core_backup_get_async_backup_links_backup',\n args: {\n 'filename': filename,\n 'contextid': contextid\n },\n }])[0].done(function(response) {\n // We have the data now update the UI.\n var context = {\n filename: filename,\n time: timevalue,\n size: response.filesize,\n fileurl: response.fileurl,\n restoreurl: response.restoreurl\n };\n\n Templates.render('core/async_backup_progress_row', context).then(function(html, js) {\n Templates.replaceNodeContents(tablerow, html, js);\n return;\n }).fail(function() {\n notification.exception(new Error('Failed to load table row'));\n return;\n });\n });\n }\n\n /**\n * Update restore table row when an async restore completes.\n *\n * @param {string} backupid The id to match elements on.\n */\n function updateRestoreTableRow(backupid) {\n var statuscell = $('#' + backupid + '_bar').parent().parent();\n var tablerow = statuscell.parent();\n var cellsiblings = statuscell.siblings();\n var coursecell = cellsiblings[0];\n var timecell = cellsiblings[1];\n var timevalue = $(timecell).text();\n\n ajax.call([{\n // Get the table data via webservice.\n methodname: 'core_backup_get_async_backup_links_restore',\n args: {\n 'backupid': backupid,\n 'contextid': contextid\n },\n }])[0].done(function(response) {\n // We have the data now update the UI.\n var resourcename = $(coursecell).text();\n var context = {\n resourcename: resourcename,\n restoreurl: response.restoreurl,\n time: timevalue\n };\n\n Templates.render('core/async_restore_progress_row', context).then(function(html, js) {\n Templates.replaceNodeContents(tablerow, html, js);\n return;\n }).fail(function() {\n notification.exception(new Error('Failed to load table row'));\n return;\n });\n });\n }\n\n /**\n * Update copy table row when an course copy completes.\n *\n * @param {string} backupid The id to match elements on.\n */\n function updateCopyTableRow(backupid) {\n var elementbar = document.querySelectorAll(\"[data-restoreid=\" + CSS.escape(backupid) + \"]\")[0];\n var restorecourse = elementbar.closest('tr').children[1];\n var coursename = restorecourse.innerHTML;\n var courselink = document.createElement('a');\n var elementbarparent = elementbar.closest('td');\n var operation = elementbarparent.previousElementSibling;\n\n // Replace the prgress bar.\n Str.get_string('complete').then(function(content) {\n operation.innerHTML = content;\n return;\n }).catch(function() {\n notification.exception(new Error('Failed to load string: complete'));\n return;\n });\n\n Templates.render('core/async_copy_complete_cell', {}).then(function(html, js) {\n Templates.replaceNodeContents(elementbarparent, html, js);\n return;\n }).fail(function() {\n notification.exception(new Error('Failed to load table cell'));\n return;\n });\n\n // Update the destination course name to a link to that course.\n ajax.call([{\n methodname: 'core_backup_get_async_backup_links_restore',\n args: {\n 'backupid': backupid,\n 'contextid': 0\n },\n }])[0].done(function(response) {\n courselink.setAttribute('href', response.restoreurl);\n courselink.innerHTML = coursename;\n restorecourse.innerHTML = null;\n restorecourse.appendChild(courselink);\n\n return;\n }).fail(function() {\n notification.exception(new Error('Failed to update table row'));\n return;\n });\n }\n\n /**\n * Update the Moodle user interface with the progress of\n * the backup process.\n *\n * @param {object} progress The progress and status of the process.\n */\n function updateProgress(progress) {\n var percentage = progress.progress * 100;\n var type = 'backup';\n var elementbar = document.querySelectorAll(\"[data-\" + type + \"id=\" + CSS.escape(backupid) + \"]\")[0];\n var elementstatus = $('#' + backupid + '_status');\n var elementdetail = $('#' + backupid + '_detail');\n var elementbutton = $('#' + backupid + '_button');\n var stringRequests;\n\n if (progress.status == STATUS_EXECUTING) {\n // Process is in progress.\n // Add in progress class color to bar.\n elementbar.classList.add('bg-success');\n\n updateElement(backupid, type, percentage);\n\n // Change heading.\n var strProcessing = 'async' + typeid + 'processing';\n Str.get_string(strProcessing, 'backup').then(function(title) {\n elementstatus.text(title);\n return;\n }).catch(function() {\n notification.exception(new Error('Failed to load string: backup ' + strProcessing));\n });\n\n } else if (progress.status == STATUS_FINISHED_ERR) {\n // Process completed with error.\n\n // Add in fail class color to bar.\n elementbar.classList.add('bg-danger');\n\n // Remove in progress class color to bar.\n elementbar.classList.remove('bg-success');\n\n updateElement(backupid, type, 100);\n\n // Change heading and text.\n var strStatus = 'async' + typeid + 'error';\n var strStatusDetail = 'async' + typeid + 'errordetail';\n stringRequests = [\n {key: strStatus, component: 'backup'},\n {key: strStatusDetail, component: 'backup'}\n ];\n Str.get_strings(stringRequests).then(function(strings) {\n elementstatus.text(strings[0]);\n elementdetail.text(strings[1]);\n\n return;\n })\n .catch(function() {\n notification.exception(new Error('Failed to load string'));\n return;\n });\n\n $('.backup_progress').children('span').removeClass('backup_stage_current');\n $('.backup_progress').children('span').last().addClass('backup_stage_current');\n\n // Stop checking when we either have an error or a completion.\n clearInterval(backupintervalid);\n\n } else if (progress.status == STATUS_FINISHED_OK) {\n // Process completed successfully.\n\n // Add in progress class color to bar\n elementbar.classList.add('bg-success');\n\n updateElement(backupid, type, 100);\n\n // Change heading and text\n var strComplete = 'async' + typeid + 'complete';\n Str.get_string(strComplete, 'backup').then(function(title) {\n elementstatus.text(title);\n return;\n }).catch(function() {\n notification.exception(new Error('Failed to load string: backup ' + strComplete));\n });\n\n if (typeid == 'restore') {\n ajax.call([{\n // Get the table data via webservice.\n methodname: 'core_backup_get_async_backup_links_restore',\n args: {\n 'backupid': backupid,\n 'contextid': contextid\n },\n }])[0].done(function(response) {\n var strDetail = 'async' + typeid + 'completedetail';\n var strButton = 'async' + typeid + 'completebutton';\n var stringRequests = [\n {key: strDetail, component: 'backup', param: response.restoreurl},\n {key: strButton, component: 'backup'}\n ];\n Str.get_strings(stringRequests).then(function(strings) {\n elementdetail.html(strings[0]);\n elementbutton.text(strings[1]);\n elementbutton.attr('href', response.restoreurl);\n\n return;\n })\n .catch(function() {\n notification.exception(new Error('Failed to load string'));\n return;\n });\n\n });\n } else {\n var strDetail = 'async' + typeid + 'completedetail';\n var strButton = 'async' + typeid + 'completebutton';\n stringRequests = [\n {key: strDetail, component: 'backup', param: restoreurl},\n {key: strButton, component: 'backup'}\n ];\n Str.get_strings(stringRequests).then(function(strings) {\n elementdetail.html(strings[0]);\n elementbutton.text(strings[1]);\n elementbutton.attr('href', restoreurl);\n\n return;\n })\n .catch(function() {\n notification.exception(new Error('Failed to load string'));\n return;\n });\n\n }\n\n $('.backup_progress').children('span').removeClass('backup_stage_current');\n $('.backup_progress').children('span').last().addClass('backup_stage_current');\n\n // Stop checking when we either have an error or a completion.\n clearInterval(backupintervalid);\n }\n }\n\n /**\n * Update the Moodle user interface with the progress of\n * all the pending processes for backup and restore operations.\n *\n * @param {object} progress The progress and status of the process.\n */\n function updateProgressAll(progress) {\n progress.forEach(function(element) {\n var percentage = element.progress * 100;\n var backupid = element.backupid;\n var type = element.operation;\n var elementbar = document.querySelectorAll(\"[data-\" + type + \"id=\" + CSS.escape(backupid) + \"]\")[0];\n\n if (element.status == STATUS_EXECUTING) {\n // Process is in element.\n\n // Add in element class color to bar\n elementbar.classList.add('bg-success');\n\n updateElement(backupid, type, percentage);\n\n } else if (element.status == STATUS_FINISHED_ERR) {\n // Process completed with error.\n\n // Add in fail class color to bar\n elementbar.classList.add('bg-danger');\n elementbar.classList.add('complete');\n\n // Remove in element class color to bar\n elementbar.classList.remove('bg-success');\n\n updateElement(backupid, type, 100);\n\n } else if (element.status == STATUS_FINISHED_OK) {\n // Process completed successfully.\n\n // Add in element class color to bar\n elementbar.classList.add('bg-success');\n elementbar.classList.add('complete');\n\n updateElement(backupid, type, 100);\n\n // We have a successful backup. Update the UI with download and file details.\n if (type == 'backup') {\n updateBackupTableRow(backupid);\n } else {\n updateRestoreTableRow(backupid);\n }\n\n }\n\n });\n }\n\n /**\n * Update the Moodle user interface with the progress of\n * all the pending processes for copy operations.\n *\n * @param {object} progress The progress and status of the process.\n */\n function updateProgressCopy(progress) {\n progress.forEach(function(element) {\n var percentage = element.progress * 100;\n var backupid = element.backupid;\n var type = element.operation;\n var elementbar = document.querySelectorAll(\"[data-\" + type + \"id=\" + CSS.escape(backupid) + \"]\")[0];\n\n if (type == 'restore') {\n let restorecell = elementbar.closest('tr').children[3];\n Str.get_string('restore').then(function(content) {\n restorecell.innerHTML = content;\n return;\n }).catch(function() {\n notification.exception(new Error('Failed to load string: restore'));\n });\n }\n\n if (element.status == STATUS_EXECUTING) {\n // Process is in element.\n\n // Add in element class color to bar\n elementbar.classList.add('bg-success');\n\n updateElement(backupid, type, percentage);\n\n } else if (element.status == STATUS_FINISHED_ERR) {\n // Process completed with error.\n\n // Add in fail class color to bar\n elementbar.classList.add('bg-danger');\n elementbar.classList.add('complete');\n\n // Remove in element class color to bar\n elementbar.classList.remove('bg-success');\n\n updateElement(backupid, type, 100);\n\n } else if ((element.status == STATUS_FINISHED_OK) && (type == 'restore')) {\n // Process completed successfully.\n\n // Add in element class color to bar\n elementbar.classList.add('bg-success');\n elementbar.classList.add('complete');\n\n updateElement(backupid, type, 100);\n\n // We have a successful copy. Update the UI link to copied course.\n updateCopyTableRow(backupid);\n }\n\n });\n }\n\n /**\n * Get the progress of the backup process via ajax.\n */\n function getBackupProgress() {\n ajax.call([{\n // Get the backup progress via webservice.\n methodname: 'core_backup_get_async_backup_progress',\n args: {\n 'backupids': [backupid],\n 'contextid': contextid\n },\n }], true, true, false, timeout)[0].done(function(response) {\n // We have the progress now update the UI.\n updateProgress(response[0]);\n checkdelay = checkdelayoriginal;\n backupintervalid = updateInterval(backupintervalid, getBackupProgress, checkdelayoriginal);\n }).fail(function() {\n checkdelay = checkdelay * checkdelaymultipler;\n backupintervalid = updateInterval(backupintervalid, getBackupProgress, checkdelay);\n });\n }\n\n /**\n * Get the progress of all backup processes via ajax.\n */\n function getAllBackupProgress() {\n var backupids = [];\n var progressbars = $('.progress').find('.progress-bar').not('.complete');\n\n progressbars.each(function() {\n backupids.push((this.id).substring(0, 32));\n });\n\n if (backupids.length > 0) {\n ajax.call([{\n // Get the backup progress via webservice.\n methodname: 'core_backup_get_async_backup_progress',\n args: {\n 'backupids': backupids,\n 'contextid': contextid\n },\n }], true, true, false, timeout)[0].done(function(response) {\n updateProgressAll(response);\n checkdelay = checkdelayoriginal;\n allbackupintervalid = updateInterval(allbackupintervalid, getAllBackupProgress, checkdelayoriginal);\n }).fail(function() {\n checkdelay = checkdelay * checkdelaymultipler;\n allbackupintervalid = updateInterval(allbackupintervalid, getAllBackupProgress, checkdelay);\n });\n } else {\n clearInterval(allbackupintervalid); // No more progress bars to update, stop checking.\n }\n }\n\n /**\n * Get the progress of all copy processes via ajax.\n */\n function getAllCopyProgress() {\n var copyids = [];\n var progressbars = $('.progress').find('.progress-bar[data-operation][data-backupid][data-restoreid]').not('.complete');\n\n progressbars.each(function() {\n let progressvars = {\n 'backupid': this.dataset.backupid,\n 'restoreid': this.dataset.restoreid,\n 'operation': this.dataset.operation,\n };\n copyids.push(progressvars);\n });\n\n if (copyids.length > 0) {\n ajax.call([{\n // Get the copy progress via webservice.\n methodname: 'core_backup_get_copy_progress',\n args: {\n 'copies': copyids\n },\n }], true, true, false, timeout)[0].done(function(response) {\n updateProgressCopy(response);\n checkdelay = checkdelayoriginal;\n allcopyintervalid = updateInterval(allcopyintervalid, getAllCopyProgress, checkdelayoriginal);\n }).fail(function() {\n checkdelay = checkdelay * checkdelaymultipler;\n allcopyintervalid = updateInterval(allcopyintervalid, getAllCopyProgress, checkdelay);\n });\n } else {\n clearInterval(allcopyintervalid); // No more progress bars to update, stop checking.\n }\n }\n\n /**\n * Get status updates for all backups.\n *\n * @public\n * @param {number} context The context id.\n */\n Asyncbackup.asyncBackupAllStatus = function(context) {\n contextid = context;\n allbackupintervalid = setInterval(getAllBackupProgress, checkdelay);\n };\n\n /**\n * Get status updates for all course copies.\n *\n * @public\n */\n Asyncbackup.asyncCopyAllStatus = function() {\n allcopyintervalid = setInterval(getAllCopyProgress, checkdelay);\n };\n\n /**\n * Get status updates for backup.\n *\n * @public\n * @param {string} backup The backup record id.\n * @param {number} context The context id.\n * @param {string} restore The restore link.\n * @param {string} type The operation type (backup or restore).\n */\n Asyncbackup.asyncBackupStatus = function(backup, context, restore, type) {\n backupid = backup;\n contextid = context;\n restoreurl = restore;\n\n if (type == 'backup') {\n typeid = 'backup';\n } else {\n typeid = 'restore';\n }\n\n // Remove the links from the progress bar, no going back now.\n $('.backup_progress').children('a').removeAttr('href');\n\n // Periodically check for progress updates and update the UI as required.\n backupintervalid = setInterval(getBackupProgress, checkdelay);\n\n };\n\n return Asyncbackup;\n});\n"],"file":"async_backup.min.js"}