bulk.js

window.imagify = window.imagify || {};

(function( $, undefined ) { // eslint-disable-line no-shadow, no-shadow-restricted-names

    var jqPropHookChecked = $.propHooks.checked;

    // Force `.prop()` to trigger a `change` event.
    $.propHooks.checked = {
        set: function( elem, value, name ) {
            var ret;

            if ( undefined === jqPropHookChecked ) {
                ret = ( elem[ name ] = value );
            } else {
                ret = jqPropHookChecked( elem, value, name );
            }

            $( elem ).trigger( 'change.imagify' );

            return ret;
        }
    };

    // Custom jQuery functions =====================================================================
    /**
     * Hide element(s).
     *
     * @param  {int}      duration A duration in ms.
     * @param  {function} callback A callback to execute once the element is hidden.
     * @return {element}  The jQuery element(s).
     */
    $.fn.imagifyHide = function( duration, callback ) {
        if ( duration && duration > 0 ) {
            this.hide( duration, function() {
                $( this ).addClass( 'hidden' ).css( 'display', '' );

                if ( undefined !== callback ) {
                    callback();
                }
            } );
        } else {
            this.addClass( 'hidden' );

            if ( undefined !== callback ) {
                callback();
            }
        }

        return this.attr( 'aria-hidden', 'true' );
    };

    /**
     * Show element(s).
     *
     * @param  {int}      duration A duration in ms.
     * @param  {function} callback A callback to execute before starting to display the element.
     * @return {element} The jQuery element(s).
     */
    $.fn.imagifyShow = function( duration, callback ) {
        if ( undefined !== callback ) {
            callback();
        }

        if ( duration && duration > 0 ) {
            this.show( duration, function() {
                $( this ).removeClass( 'hidden' ).css( 'display', '' );
            } );
        } else {
            this.removeClass( 'hidden' );
        }

        return this.attr( 'aria-hidden', 'false' );
    };

}( jQuery ));

(function($, d, w, undefined) { // eslint-disable-line no-unused-vars, no-shadow, no-shadow-restricted-names

    w.imagify.bulk = {

        // Properties ==============================================================================
        charts: {
            overview: {
                canvas: false,
                donut:  false,
                data:   {
                    // Order: unoptimized, optimized, error.
                    labels: [
                        imagifyBulk.labels.overviewChartLabels.unoptimized,
                        imagifyBulk.labels.overviewChartLabels.optimized,
                        imagifyBulk.labels.overviewChartLabels.error
                    ],
                    datasets: [ {
                        data:            [],
                        backgroundColor: [ '#10121A', '#46B1CE', '#C51162' ],
                        borderWidth:     0
                    } ]
                }
            },
            files: {
                donuts: {}
            },
            share: {
                canvas: false,
                donut:  false
            }
        },
        /**
         * Folder types in queue.
         * An array of objects: {
         *     @type {string} groupID The group ID, like 'library'.
         *     @type {string} context The context, like 'wp'.
         *     @type {int}    level   The optimization level: 0, 1, or 2.
         * }
         */
        folderTypesQueue:     [],
        /**
         * Status of each folder type. Type IDs are used as keys.
         * Each object contains: {
         *     @type {bool}   isError Tell if the status is considered as an error.
         *     @type {string} id      ID of the status, like 'waiting', 'fetching', or 'optimizing'.
         * }
         */
        status:               {},
        // Tell if the message displayed when retrieving the image IDs has been shown once.
        displayedWaitMessage: false,
        // Tell how many rows are available.
        hasMultipleRows:      true,
        // Set to true to stop the whole thing.
        processIsStopped:     false,
        // Global stats.
        globalOptimizedCount: 0,
        globalGain:           0,
        globalOriginalSize:   0,
        globalOptimizedSize:  0,
        /**
         * Folder types used in the page.
         *
         * @var {object} {
         *     An object of objects. The keys are like: {groupID|context}.
         *
         *     @type {string} groupID The group ID.
         *     @type {string} context The context.
         * }
         */
        folderTypesData:      {},

        // Methods =================================================================================

        /*
         * Init.
         */
        init: function () {
            var $document = $( d );

            // Overview chart.
            this.drawOverviewChart();

            this.hasMultipleRows = $( '.imagify-bulk-table [name="group[]"]' ).length > 1;

            // Selectors (like the level selectors).
            $( '.imagify-selector-button' )
                .on( 'click.imagify', this.openSelectorFromButton );

            $( '.imagify-selector-list input' )
                .on( 'change.imagify init.imagify', this.syncSelectorFromRadio )
                .filter( ':checked' )
                .trigger( 'init.imagify' );

            $document
                .on( 'keypress.imagify click.imagify', this.closeSelectors );

            // Other buttons/UI.
            $( '.imagify-bulk-table [name="group[]"]' )
                .on( 'change.imagify init.imagify', this.toggleOptimizationButton )
                .trigger( 'init.imagify' );

            $( '#imagify-bulk-action' )
                .on( 'click.imagify', this.maybeLaunchAllProcesses );

            // Optimization events.
            $( w )
                .on( 'processQueue.imagify', this.processQueue )
                .on( 'queueEmpty.imagify', this.queueEmpty );

            if ( imagifyBulk.ajaxActions.getStats && $( '.imagify-bulk-table [data-group-id="library"][data-context="wp"]' ).length ) {
                // On large WP library, don't request stats periodically, only when everything is done.
                imagifyBulk.imagifybeatIDs.stats = false;
            }

            if ( imagifyBulk.imagifybeatIDs.stats ) {
                // Imagifybeat for stats.
                $document
                    .on( 'imagifybeat-send', this.addStatsImagifybeat )
                    .on( 'imagifybeat-tick', this.processStatsImagifybeat );
            }

            // Imagifybeat for optimization queue.
            $document
                .on( 'imagifybeat-send', this.addQueueImagifybeat )
                .on( 'imagifybeat-tick', this.processQueueImagifybeat );

            // Imagifybeat for requirements.
            $document
                .on( 'imagifybeat-send', this.addRequirementsImagifybeat )
                .on( 'imagifybeat-tick', this.processRequirementsImagifybeat );

            if ( imagifyBulk.optimizing ) {
                // Fasten Imagifybeat: 1 tick every 15 seconds, and disable suspend.
                w.imagify.beat.interval( 15 );
                w.imagify.beat.disableSuspend();
            }
        },

        /*
         * Get the URL used for ajax requests.
         *
         * @param  {string} action An ajax action, or part of it.
         * @param  {object} item   The current item.
         * @return {string}
         */
        getAjaxUrl: function ( action, item ) {
            var url = ajaxurl + w.imagify.concat + '_wpnonce=' + imagifyBulk.ajaxNonce + '&action=' + imagifyBulk.ajaxActions[ action ];

            if ( item && item.context ) {
                url += '&context=' + item.context;
            }

            if ( item && Number.isInteger( item.level ) ) {
                url += '&optimization_level=' + item.level;
            }

            return url;
        },

        /**
         * Get folder types used in the page.
         *
         * @see    this.folderTypesData
         * @return {object}
         */
        getFolderTypes: function () {
            if ( ! $.isEmptyObject( w.imagify.bulk.folderTypesData ) ) {
                return w.imagify.bulk.folderTypesData;
            }

            $( '.imagify-row-folder-type' ).each( function() {
                var $this = $( this ),
                    data  = {
                        groupID: $this.data( 'group-id' ),
                        context: $this.data( 'context' ),
                        level:   $this.find( '.imagify-cell-level [name="level[' + $this.data( 'group-id' ) + ']"]:checked' ).val()
                    },
                    key   = data.groupID + '|' + data.context;

                w.imagify.bulk.folderTypesData[ key ] = data;
            } );

            return w.imagify.bulk.folderTypesData;
        },

        /*
         * Get the message displayed to the user when (s)he leaves the page.
         *
         * @return {string}
         */
        getConfirmMessage: function () {
            return imagifyBulk.labels.processing;
        },

        /*
         * Close the given optimization level selector.
         *
         * @param {object} $lists A jQuery object.
         * @param {int}    timer  Timer in ms to close the selector.
         */
        closeLevelSelector: function ( $lists, timer ) {
            if ( ! $lists || ! $lists.length ) {
                return;
            }

            if ( undefined !== timer && timer > 0 ) {
                w.setTimeout( function() {
                    w.imagify.bulk.closeLevelSelector( $lists );
                }, timer );
                return;
            }

            $lists.attr( 'aria-hidden', 'true' );
        },

        /*
         * Stop everything and update the current item status as an error.
         *
         * @param {string} errorId An error ID.
         * @param {object} item    The current item.
         */
        stopProcess: function ( errorId, item ) {
            w.imagify.bulk.processIsStopped = true;

            w.imagify.bulk.status[ item.groupID ] = {
                isError: true,
                id:      errorId
            };

            $( w ).trigger( 'queueEmpty.imagify' );
        },

        /*
         * Tell if we have a blocking error. Can also display an error message in a swal.
         *
         * @param  {bool} displayErrorMessage False to not display any error message.
         * @return {bool}
         */
        hasBlockingError: function ( displayErrorMessage ) {
            displayErrorMessage = undefined !== displayErrorMessage && displayErrorMessage;

            if ( imagifyBulk.curlMissing ) {
                if ( displayErrorMessage ) {
                    w.imagify.bulk.displayError( {
                        html: imagifyBulk.labels.curlMissing
                    } );
                }

                w.imagify.bulk.processIsStopped = true;

                return true;
            }

            if ( imagifyBulk.editorMissing ) {
                if ( displayErrorMessage ) {
                    w.imagify.bulk.displayError( {
                        html: imagifyBulk.labels.editorMissing
                    } );
                }

                w.imagify.bulk.processIsStopped = true;

                return true;
            }

            if ( imagifyBulk.extHttpBlocked ) {
                if ( displayErrorMessage ) {
                    w.imagify.bulk.displayError( {
                        html: imagifyBulk.labels.extHttpBlocked
                    } );
                }

                w.imagify.bulk.processIsStopped = true;

                return true;
            }

            if ( imagifyBulk.apiDown ) {
                if ( displayErrorMessage ) {
                    w.imagify.bulk.displayError( {
                        html: imagifyBulk.labels.apiDown
                    } );
                }

                w.imagify.bulk.processIsStopped = true;

                return true;
            }

            if ( ! imagifyBulk.keyIsValid ) {
                if ( displayErrorMessage ) {
                    w.imagify.bulk.displayError( {
                        title: imagifyBulk.labels.invalidAPIKeyTitle,
                        type:  'info'
                    } );
                }

                w.imagify.bulk.processIsStopped = true;

                return true;
            }

            if ( imagifyBulk.isOverQuota ) {
                if ( displayErrorMessage ) {
                    w.imagify.bulk.displayError( {
                        title:             imagifyBulk.labels.overQuotaTitle,
                        html:              $( '#tmpl-imagify-overquota-alert' ).html(),
                        type:              'info',
                        customClass:       'imagify-swal-has-subtitle imagify-swal-error-header',
                        showConfirmButton: false
                    } );
                }

                w.imagify.bulk.processIsStopped = true;

                return true;
            }

            return false;
        },

        /*
         * Display an error message in a modal.
         *
         * @param {string} title The modal title.
         * @param {string} text  The modal text.
         * @param {object} args  Other less common args.
         */
        displayError: function ( title, text, args ) {
            var def = {
                title:             '',
                html:              '',
                type:              'error',
                customClass:       '',
                width:             620,
                padding:           0,
                showCloseButton:   true,
                showConfirmButton: true
            };

            if ( $.isPlainObject( title ) ) {
                args = $.extend( {}, def, title );
            } else {
                args = args || {};
                args = $.extend( {}, def, {
                    title: title || '',
                    html:  text  || ''
                }, args );
            }

            args.title        = args.title || imagifyBulk.labels.error;
            args.customClass += ' imagify-sweet-alert';

            swal( args ).catch( swal.noop );
        },

        /*
         * Display the share box.
         */
        displayShareBox: function () {
            var $complete, globalSaved;

            if ( ! this.globalGain || this.folderTypesQueue.length ) {
                this.globalOptimizedCount = 0;
                this.globalGain           = 0;
                this.globalOriginalSize   = 0;
                this.globalOptimizedSize  = 0;
                return;
            }

            globalSaved = this.globalOriginalSize - this.globalOptimizedSize;

            $complete = $( '.imagify-row-complete' );
            $complete.find( '.imagify-ac-rt-total-images' ).html( this.globalOptimizedCount );
            $complete.find( '.imagify-ac-rt-total-gain' ).html( w.imagify.humanSize( globalSaved, 1 ) );
            $complete.find( '.imagify-ac-rt-total-original' ).html( w.imagify.humanSize( this.globalOriginalSize, 1 ) );
            $complete.find( '.imagify-ac-chart' ).attr( 'data-percent', Math.round( this.globalGain ) );

            // Chart.
            this.drawShareChart();

            $complete.addClass( 'done' ).imagifyShow();

            $( 'html, body' ).animate( {
                scrollTop: $complete.offset().top
            }, 200 );

            // Reset the stats.
            this.globalOptimizedCount = 0;
            this.globalGain           = 0;
            this.globalOriginalSize   = 0;
            this.globalOptimizedSize  = 0;
        },

        /**
         * Print optimization stats.
         *
         * @param {object} data Object containing all Imagifybeat IDs.
         */
        updateStats: function ( data ) {
            var donutData;

            if ( ! data || ! $.isPlainObject( data ) ) {
                return;
            }

            if ( w.imagify.bulk.charts.overview.donut.data ) {
                donutData = w.imagify.bulk.charts.overview.donut.data.datasets[0].data;

                if ( data.unoptimized_attachments === donutData[0] && data.optimized_attachments === donutData[1] && data.errors_attachments === donutData[2] ) {
                    return;
                }
            }

            /**
             * User account.
             */
            data.unconsumed_quota = data.unconsumed_quota.toFixed( 1 ); // A mystery where a float rounded on php side is not rounded here anymore. JavaScript is fun, it always surprises you in a manner you didn't expect.
            $( '.imagify-meteo-icon' ).html( data.quota_icon );
            $( '.imagify-unconsumed-percent' ).html( data.unconsumed_quota + '%' );
            $( '.imagify-unconsumed-bar' ).css( 'width', data.unconsumed_quota + '%' ).parent().attr( 'class', data.quota_class );

            /**
             * Global chart.
             */
            $( '#imagify-overview-chart-percent' ).html( data.optimized_attachments_percent + '<span>%</span>' );
            $( '.imagify-total-percent' ).html( data.optimized_attachments_percent + '%' );

            w.imagify.bulk.drawOverviewChart( [
                data.unoptimized_attachments,
                data.optimized_attachments,
                data.errors_attachments
            ] );

            /**
             * Stats block.
             */
            // The total optimized images.
            $( '#imagify-total-optimized-attachments' ).html( data.already_optimized_attachments );

            // The original bar.
            $( '#imagify-original-bar' ).find( '.imagify-barnb' ).html( data.original_human );

            // The optimized bar.
            $( '#imagify-optimized-bar' ).css( 'width', ( 100 - data.optimized_percent ) + '%' ).find( '.imagify-barnb' ).html( data.optimized_human );

            // The Percent data.
            $( '#imagify-total-optimized-attachments-pct' ).html( data.optimized_percent + '%' );
        },

        // Event callbacks =========================================================================

        /*
         * Selector (like optimization level selector): on button click, open the dropdown and focus the current radio input.
         * The dropdown must be open or the focus event won't be triggered.
         *
         * @param {object} e jQuery's Event object.
         */
        openSelectorFromButton: function ( e ) {
            var $list = $( '#' + $( this ).attr( 'aria-controls' ) );
            // Stop click event from bubbling: this will allow to close the selector list if anything else id clicked.
            e.stopPropagation();
            // Close other lists.
            $( '.imagify-selector-list' ).not( $list ).attr( 'aria-hidden', 'true' );
            // Open the corresponding list and focus the radio.
            $list.attr( 'aria-hidden', 'false' ).find( ':checked' ).trigger( 'focus.imagify' );
        },

        /*
         * Selector: on radio change, make the row "current" and update the button text.
         */
        syncSelectorFromRadio: function () {
            var $row = $( this ).closest( '.imagify-selector-choice' );
            // Update rows attributes.
            $row.addClass( 'imagify-selector-current-value' ).attr( 'aria-current', 'true' ).siblings( '.imagify-selector-choice' ).removeClass( 'imagify-selector-current-value' ).attr( 'aria-current', 'false' );
            // Change the button text.
            $row.closest( '.imagify-selector-list' ).siblings( '.imagify-selector-button' ).find( '.imagify-selector-current-value-info' ).html( $row.find( 'label' ).html() );
        },

        /*
         * Selector: on Escape or Enter kaystroke, close the dropdown.
         *
         * @param {object} e jQuery's Event object.
         */
        closeSelectors: function ( e ) {
            if ( 'keypress' === e.type && 27 !== e.keyCode && 13 !== e.keyCode ) {
                return;
            }
            w.imagify.bulk.closeLevelSelector( $( '.imagify-selector-list[aria-hidden="false"]' ) );
        },

        /*
         * Enable or disable the Optimization button depending on the checked checkboxes.
         * Also, if there is only 1 checkbox in the page, don't allow it to be unchecked.
         */
        toggleOptimizationButton: function () {
            // Prevent uncheck if there is only one checkbox.
            if ( ! w.imagify.bulk.hasMultipleRows && ! this.checked ) {
                $( this ).prop( 'checked', true );
                return;
            }

            if ( imagifyBulk.optimizing ) {
                $( '#imagify-bulk-action' ).prop( 'disabled', true );

                return;
            }

            // Enable or disable the Optimization button.
            if ( $( '.imagify-bulk-table [name="group[]"]:checked' ).length ) {
                $( '#imagify-bulk-action' ).prop( 'disabled', false );
            } else {
                $( '#imagify-bulk-action' ).prop( 'disabled', true );
            }
        },

        /*
         * Maybe display a modal, then launch all processes.
         */
        maybeLaunchAllProcesses: function () {
            var $infosModal;

            if ( $( this ).prop('disabled') ) {
                return;
            }

            if ( ! $( '.imagify-bulk-table [name="group[]"]:checked' ).length ) {
                return;
            }

            if ( w.imagify.bulk.hasBlockingError( true ) ) {
                return;
            }

            $infosModal = $( '#tmpl-imagify-bulk-infos' );

            if ( ! $infosModal.length ) {
                w.imagify.bulk.launchAllProcesses();
                return;
            }

            // Swal Information before loading the optimize process.
            swal( {
                title:             imagifyBulk.labels.bulkInfoTitle,
                html:              $infosModal.html(),
                type:              '',
                customClass:       'imagify-sweet-alert imagify-swal-has-subtitle imagify-before-bulk-infos',
                showCancelButton:  true,
                padding:           0,
                width:             554,
                confirmButtonText: imagifyBulk.labels.confirmBulk,
                cancelButtonText:  imagifySwal.labels.cancelButtonText,
                reverseButtons:    true
            } ).then( function() {
                var $row = $( '.imagify-bulk-table [name="group[]"]:checked' ).first().closest( '.imagify-row-folder-type' );

                $.get( w.imagify.bulk.getAjaxUrl( 'bulkInfoSeen', {
                    context: $row.data( 'context' )
                } ) );

                $infosModal.remove();

                w.imagify.bulk.launchAllProcesses();
            } ).catch( swal.noop );
        },

        /*
         * Build the queue and launch all processes.
         */
        launchAllProcesses: function () {
            var $w      = $( w ),
                $button = $( '#imagify-bulk-action' );

            // Disable the button.
            $button.prop( 'disabled', true ).find( '.dashicons' ).addClass( 'rotate' );

            // Hide the "Complete" message.
            $( '.imagify-row-complete' ).imagifyHide( 200, function() {
                $( this ).removeClass( 'done' );
            } );

            // Make sure to reset properties.
            this.folderTypesQueue     = [];
            this.status               = {};
            this.displayedWaitMessage = false;
            this.processIsStopped     = false;
            this.globalOptimizedCount = 0;
            this.globalGain           = 0;
            this.globalOriginalSize   = 0;
            this.globalOptimizedSize  = 0;

            $( '.imagify-bulk-table [name="group[]"]:checked' ).each( function() {
                var $checkbox = $( this ),
                    $row      = $checkbox.closest( '.imagify-row-folder-type' ),
                    groupID   = $row.data( 'group-id' ),
                    context   = $row.data( 'context' ),
                    level     = $row.find( '.imagify-cell-level [name="level[' + groupID + ']"]:checked' ).val();

                // Build the queue.
                w.imagify.bulk.folderTypesQueue.push( {
                    groupID: groupID,
                    context: context,
                    level:   undefined === level ? -1 : parseInt( level, 10 )
                } );

                // Set the status.
                w.imagify.bulk.status[ groupID ] = {
                    isError: false,
                    id:      'waiting'
                };
            } );

            // Fasten Imagifybeat: 1 tick every 15 seconds, and disable suspend.
            w.imagify.beat.interval( 15 );
            w.imagify.beat.disableSuspend();

            // Process the queue.
            $w.trigger( 'processQueue.imagify' );
        },

        /*
         * Process the first item in the queue.
         */
        processQueue: function () {
            var $row, $table, $progressBar, $progress;

            if ( w.imagify.bulk.processIsStopped ) {
                return;
            }

            if ( ! w.imagify.bulk.displayedWaitMessage ) {
                // Display an alert to wait.
                swal( {
                    title:             imagifyBulk.labels.waitTitle,
                    html:              imagifyBulk.labels.waitText,
                    showConfirmButton: false,
                    padding:           0,
                    imageUrl:          imagifyBulk.waitImageUrl,
                    customClass:       'imagify-sweet-alert'
                } ).catch( swal.noop );
                w.imagify.bulk.displayedWaitMessage = true;
            }

            w.imagify.bulk.folderTypesQueue.forEach( function( item ) {
                // Start async process for current context
                $.get( w.imagify.bulk.getAjaxUrl( 'bulkProcess', item ) )
                    .done( function( response ) {
                        var errorMessage;

                        swal.close();

                        if ( response.data && response.data.message ) {
                            errorMessage = response.data.message;
                        } else {
                            errorMessage = imagifyBulk.ajaxErrorText;
                        }

                        if ( ! response.success ) {
                            // Error.
                            w.imagify.bulk.stopProcess( errorMessage, item );
                            return;
                        }

                        if ( ! response.data || ! ( $.isPlainObject( response.data ) || Array.isArray( response.data ) ) ) {
                            // Error: should be an array if empty, or an object otherwize.
                            w.imagify.bulk.stopProcess( errorMessage, item );
                            return;
                        }

                        // Success.
                        if ( response.success ) {
                            $row         = $( '#cb-select-' + item.groupID ).closest( '.imagify-row-folder-type' );
                            $table       = $row.closest( '.imagify-bulk-table' );
                            $progressBar = $table.find( '.imagify-row-progress' );
                            $progress    = $progressBar.find( '.bar' );

                            $row.find( '.imagify-cell-checkbox-loader' ).removeClass( 'hidden' ).attr( 'aria-hidden', 'false' );
                            $row.find( '.imagify-cell-checkbox-box' ).addClass( 'hidden' ).attr( 'aria-hidden', 'true' );

                            // Reset and display the progress bar.
                            $progress.css( 'width', '0%' ).find( '.percent' ).text( '0%' );
                            $progressBar.slideDown().attr( 'aria-hidden', 'false' );
                        }
                    } )
                    .fail( function() {
                        // Error.
                        w.imagify.bulk.stopProcess( 'get-unoptimized-images', item );
                    } );
            } );
        },

        /*
         * End.
         */
        queueEmpty: function () {
            var $tables   = $( '.imagify-bulk-table' ),
                errorArgs = {},
                hasError  = false,
                noImages  = true,
                errorMsg  = '';

            // Reset Imagifybeat interval and enable suspend.
            w.imagify.beat.resetInterval();
            w.imagify.beat.enableSuspend();

            // Reset the queue.
            w.imagify.bulk.folderTypesQueue = [];

            // Display the share box.
            w.imagify.bulk.displayShareBox();

            // Fetch and display generic stats if stats via Imagifybeat are disabled.
            if ( ! imagifyBulk.imagifybeatIDs.stats ) {
                $.get( w.imagify.bulk.getAjaxUrl( 'getStats' ), {
                    types: w.imagify.bulk.getFolderTypes()
                } )
                    .done( function( response ) {
                        if ( response.success ) {
                            w.imagify.bulk.updateStats( response.data );
                        }
                    } );
            }

            // Maybe display error.
            if ( ! $.isEmptyObject( w.imagify.bulk.status ) ) {
                $.each( w.imagify.bulk.status, function( groupID, typeStatus ) {
                    if ( ! typeStatus.isError ) {
                        noImages = false;
                    } else if ( 'no-images' !== typeStatus.id && typeStatus.isError ) {
                        hasError = typeStatus.id;
                        noImages = false;
                        return false;
                    }
                } );

                if ( hasError ) {
                    if ( 'invalid-api-key' === hasError ) {
                        errorArgs = {
                            title: imagifyBulk.labels.invalidAPIKeyTitle,
                            type:  'info'
                        };
                    }
                    else if ( 'over-quota' === hasError ) {
                        errorArgs = {
                            title:             imagifyBulk.labels.overQuotaTitle,
                            html:              $( '#tmpl-imagify-overquota-alert' ).html(),
                            type:              'info',
                            customClass:       'imagify-swal-has-subtitle imagify-swal-error-header',
                            showConfirmButton: false
                        };
                    }
                    else if ( 'get-unoptimized-images' === hasError || 'consumed-all-data' === hasError ) {
                        errorArgs = {
                            title: imagifyBulk.labels.getUnoptimizedImagesErrorTitle,
                            html:  imagifyBulk.labels.getUnoptimizedImagesErrorText,
                            type:  'info'
                        };
                    }
                    w.imagify.bulk.displayError( errorArgs );
                }
                else if ( noImages ) {
                    if ( Object.prototype.hasOwnProperty.call( imagifyBulk.labels.nothingToDoText, w.imagify.bulk.imagifyAction ) ) {
                        errorMsg = imagifyBulk.labels.nothingToDoText[ w.imagify.bulk.imagifyAction ];
                    } else {
                        errorMsg = imagifyBulk.labels.nothingToDoText.optimize;
                    }
                    w.imagify.bulk.displayError( {
                        title: imagifyBulk.labels.nothingToDoTitle,
                        html:  errorMsg,
                        type:  'info'
                    } );
                }
            }

            // Reset status.
            w.imagify.bulk.status = {};

            // Reset the progress bars.
            $tables.find( '.imagify-row-progress' ).slideUp().attr( 'aria-hidden', 'true' ).find( '.bar' ).removeAttr( 'style' ).find( '.percent' ).text( '0%' );

            $tables.find( '.imagify-cell-checkbox-loader' ).each( function() {
                $(this).addClass( 'hidden' ).attr( 'aria-hidden', 'true' );
            } );

            $tables.find( '.imagify-cell-checkbox-box' ).each( function() {
                $(this).removeClass( 'hidden' ).attr( 'aria-hidden', 'false' );
            } );

            // Enable (or not) the main button.
            if ( $( '.imagify-bulk-table [name="group[]"]:checked' ).length ) {
                $( '#imagify-bulk-action' ).prop( 'disabled', false ).find( '.dashicons' ).removeClass( 'rotate' );
            } else {
                $( '#imagify-bulk-action' ).find( '.dashicons' ).removeClass( 'rotate' );
            }
        },

        // Imagifybeat =============================================================================

        /**
         * Add a Imagifybeat ID for global stats on "imagifybeat-send" event.
         *
         * @param {object} e    Event object.
         * @param {object} data Object containing all Imagifybeat IDs.
         */
        addStatsImagifybeat: function ( e, data ) {
            data[ imagifyBulk.imagifybeatIDs.stats ] = Object.keys( w.imagify.bulk.getFolderTypes() );
        },

        /**
         * Listen for the custom event "imagifybeat-tick" on $(document).
         * It allows to update various data periodically.
         *
         * @param {object} e    Event object.
         * @param {object} data Object containing all Imagifybeat IDs.
         */
        processStatsImagifybeat: function ( e, data ) {
            if ( typeof data[ imagifyBulk.imagifybeatIDs.stats ] !== 'undefined' ) {
                w.imagify.bulk.updateStats( data[ imagifyBulk.imagifybeatIDs.stats ] );
            }
        },

        /**
         * Add a Imagifybeat ID on "imagifybeat-send" event to sync the optimization queue.
         *
         * @param {object} e    Event object.
         * @param {object} data Object containing all Imagifybeat IDs.
         */
        addQueueImagifybeat: function ( e, data ) {
            data[ imagifyBulk.imagifybeatIDs.queue ] = Object.values( w.imagify.bulk.getFolderTypes() );
        },

        /**
         * Listen for the custom event "imagifybeat-tick" on $(document).
         * It allows to update various data periodically.
         *
         * @param {object} e    Event object.
         * @param {object} data Object containing all Imagifybeat IDs.
         */
        processQueueImagifybeat: function ( e, data ) {
            var queue, $row, $progress, $bar;

            if ( typeof data[ imagifyBulk.imagifybeatIDs.queue ] !== 'undefined' ) {
                queue = data[ imagifyBulk.imagifybeatIDs.queue ];

                if ( false !== queue.result ) {
                    w.imagify.bulk.globalOriginalSize = queue.result.original_size;
                    w.imagify.bulk.globalOptimizedSize = queue.result.optimized_size;
                    w.imagify.bulk.globalOptimizedCount = queue.result.total;
                    w.imagify.bulk.globalGain = w.imagify.bulk.globalOptimizedSize * 100 / w.imagify.bulk.globalOriginalSize;
                }

                if ( ! w.imagify.bulk.processIsStopped && w.imagify.bulk.hasBlockingError( true ) ) {
                    $( w ).trigger( 'queueEmpty.imagify' );
                    return;
                }

                if ( Object.prototype.hasOwnProperty.call( queue, 'groups_data' ) ) {
                    Object.entries( queue.groups_data ).forEach( function( item ) {
                        $row = $( '[data-context=' + item[0] + ']' );

                        $row.children( '.imagify-cell-count-optimized' ).first().html( item[1]['count-optimized'] );
                        $row.children( '.imagify-cell-count-errors' ).first().html( item[1]['count-errors'] );
                        $row.children( '.imagify-cell-optimized-size-size' ).first().html( item[1]['optimized-size'] );
                        $row.children( '.imagify-cell-original-size-size' ).first().html( item[1]['original-size'] );
                    } );
                }

                if ( 0 === queue.remaining ) {
                    $( w ).trigger( 'queueEmpty.imagify' );
                    return;
                }

                $progress = $( '.imagify-row-progress' );
                $bar      = $progress.find( '.bar' );

                $bar.css( 'width', queue.percentage + '%' ).find( '.percent' ).html( queue.percentage + '%' );
                $progress.slideDown().attr( 'aria-hidden', 'false' );
            }
        },

        /**
         * Add a Imagifybeat ID for requirements on "imagifybeat-send" event.
         *
         * @param {object} e    Event object.
         * @param {object} data Object containing all Imagifybeat IDs.
         */
        addRequirementsImagifybeat: function ( e, data ) {
            data[ imagifyBulk.imagifybeatIDs.requirements ] = 1;
        },

        /**
         * Listen for the custom event "imagifybeat-tick" on $(document).
         * It allows to update requirements status periodically.
         *
         * @param {object} e    Event object.
         * @param {object} data Object containing all Imagifybeat IDs.
         */
        processRequirementsImagifybeat: function ( e, data ) {
            if ( typeof data[ imagifyBulk.imagifybeatIDs.requirements ] === 'undefined' ) {
                return;
            }

            data = data[ imagifyBulk.imagifybeatIDs.requirements ];

            imagifyBulk.curlMissing    = data.curl_missing;
            imagifyBulk.editorMissing  = data.editor_missing;
            imagifyBulk.extHttpBlocked = data.external_http_blocked;
            imagifyBulk.apiDown        = data.api_down;
            imagifyBulk.keyIsValid     = data.key_is_valid;
            imagifyBulk.isOverQuota    = data.is_over_quota;
        },

        // Charts ==================================================================================

        /**
         * Overview chart.
         * Used for the big overview chart.
         */
        drawOverviewChart: function ( data ) {
            var initData, legend;

            if ( ! this.charts.overview.canvas ) {
                this.charts.overview.canvas = d.getElementById( 'imagify-overview-chart' );

                if ( ! this.charts.overview.canvas ) {
                    return;
                }
            }

            data = data && Array.isArray( data ) ? data : [];

            if ( this.charts.overview.donut ) {
                // Update existing donut.
                if ( data.length ) {
                    if ( data.reduce( function( a, b ) { return a + b; }, 0 ) === 0 ) {
                        data[0] = 1;
                    }

                    this.charts.overview.donut.data.datasets[0].data = data;
                    this.charts.overview.donut.update();
                }
                return;
            }

            // Create new donut.
            this.charts.overview.data.datasets[0].data = [
                parseInt( this.charts.overview.canvas.getAttribute( 'data-unoptimized' ), 10 ),
                parseInt( this.charts.overview.canvas.getAttribute( 'data-optimized' ), 10 ),
                parseInt( this.charts.overview.canvas.getAttribute( 'data-errors' ), 10 )
            ];
            initData = $.extend( {}, this.charts.overview.data );

            if ( data.length ) {
                initData.datasets[0].data = data;
            }

            if ( initData.datasets[0].data.reduce( function( a, b ) { return a + b; }, 0 ) === 0 ) {
                initData.datasets[0].data[0] = 1;
            }

            this.charts.overview.donut = new w.imagify.Chart( this.charts.overview.canvas, {
                type:    'doughnut',
                data:    initData,
                options: {
                    plugins: {
                        legend: {
                            display: false
                        }
                    },
                    events:    [],
                    animation: {
                        easing: 'easeOutBounce'
                    },
                    tooltips: {
                        displayColors: false,
                        callbacks:     {
                            label: function( tooltipItem, localData ) {
                                return localData.datasets[ tooltipItem.datasetIndex ].data[ tooltipItem.index ];
                            }
                        }
                    },
                    responsive:       false,
					cutout: 75
                }
            } );

            // Then generate the legend and insert it to your page somewhere.
            legend = '<ul class="imagify-doughnut-legend">';

            $.each( initData.labels, function( i, label ) {
                legend += '<li><span style="background-color:' + initData.datasets[0].backgroundColor[ i ] + '"></span>' + label + '</li>';
            } );

            legend += '</ul>';

            d.getElementById( 'imagify-overview-chart-legend' ).innerHTML = legend;
        },

        /*
         * Share Chart.
         * Used for the chart in the share box.
         */
        drawShareChart: function () {
            var value;

            if ( ! this.charts.share.canvas ) {
                this.charts.share.canvas = d.getElementById( 'imagify-ac-chart' );

                if ( ! this.charts.share.canvas ) {
                    return;
                }
            }

            value = parseInt( $( this.charts.share.canvas ).closest( '.imagify-ac-chart' ).attr( 'data-percent' ), 10 );

            if ( this.charts.share.donut ) {
                // Update existing donut.
                this.charts.share.donut.data.datasets[0].data[0] = value;
                this.charts.share.donut.data.datasets[0].data[1] = 100 - value;
                this.charts.share.donut.update();
                return;
            }

            // Create new donut.
            this.charts.share.donut = new w.imagify.Chart( this.charts.share.canvas, {
                type: 'doughnut',
                data: {
                    datasets: [{
                        data:            [ value, 100 - value ],
                        backgroundColor: [ '#40B1D0', '#FFFFFF' ],
                        borderWidth:     0
                    }]
                },
                options: {
                    plugins: {
                        legend: {
                            display: false
                        }
                    },
                    events:    [],
                    animation: {
                        easing: 'easeOutBounce'
                    },
                    tooltips: {
                        enabled: false
                    },
                    responsive:       false,
                    cutoutPercentage: 70
                }
            } );
        }
    };

    w.imagify.bulk.init();

    if (imagifyBulk.isOverQuota) {
        w.imagify.bulk.displayError( {
            title:             imagifyBulk.labels.overQuotaTitle,
            html:              $( '#tmpl-imagify-overquota-alert' ).html(),
            type:              'info',
            customClass:       'imagify-swal-has-subtitle imagify-swal-error-header',
            showConfirmButton: false
        } );
    }


} )(jQuery, document, window);