/* --------------------------------------------------------------
 emails_modal.js 2018-11-22
 Gambio GmbH
 http://www.gambio.de
 Copyright (c) 2018 Gambio GmbH
 Released under the GNU General Public License (Version 2)
 [http://www.gnu.org/licenses/gpl-2.0.html]
 ----------------------------------------------------------------
 */

/**
 * ## Attachments Modal Controller
 *
 * This controller will handle the attachments modal dialog operations of the admin/emails page.
 *
 * @module Controllers/attachments_modal
 */
gx.controllers.module(
    'attachments_modal',

    [
        'modal',
        gx.source + '/libs/emails',
        jse.source + '/vendor/DateJS/date'
    ],

    /** @lends module:Controllers/attachments_modal */

    function (data) {

        'use strict';

        // ------------------------------------------------------------------------
        // VARIABLE DEFINITION
        // ------------------------------------------------------------------------

        var
            /**
             * Module Reference
             *
             * @type {object}
             */
            $this = $(this),

            /**
             * Emails Main Table Selector
             *
             * @type {object}
             */
            $table = $('#emails-table'),

            /**
             * Default Module Options
             *
             * @type {object}
             */
            defaults = {},

            /**
             * Final Module Options
             *
             * @type {object}
             */
            options = $.extend(true, {}, defaults, data),

            /**
             * Module Object
             *
             * @type {object}
             */
            module = {};

        // ------------------------------------------------------------------------
        // EVENT HANDLERS
        // ------------------------------------------------------------------------

        /**
         * Delete old attachments request.
         *
         * @param {object} event Contains the event information.
         */
        var _onDeleteOldAttachments = function (event) {
            // Validate selected date before making the request.
            if ($this.find('#removal-date').val() === '') {
                return; // do not proceed
            }

            // Display confirmation modal before proceeding.
            var modalOptions = {
                title: jse.core.lang.translate('delete', 'buttons') + ' - '
                    + $this.find('#removal-date').datepicker('getDate').toString('dd.MM.yyyy'),
                content: jse.core.lang.translate('prompt_delete_old_attachments', 'emails'),
                buttons: [
                    {
                        text: jse.core.lang.translate('no', 'lightbox_buttons'),
                        click: function () {
                            $(this).dialog('close');
                        }
                    },
                    {
                        text: jse.core.lang.translate('yes', 'lightbox_buttons'),
                        click: function () {
                            jse.libs.emails.deleteOldAttachments($('#removal-date')
                                .datepicker('getDate').toString('yyyy-MM-dd HH:mm:ss'))
                                .done(function (response) {
                                    var size = (response.size.megabytes !== 0)
                                        ? response.size.megabytes + ' Megabytes'
                                        : response.size.bytes + ' Bytes';

                                    var message =
                                        jse.core.lang.translate('message_delete_old_attachments_success', 'emails')
                                        + '<br/>' + jse.core.lang.translate('count', 'admin_labels') + ': '
                                        + response.count + ', ' + jse.core.lang.translate('size', 'db_backup') + ': '
                                        + size;

                                    jse.libs.modal.message({
                                        title: 'Info',
                                        content: message
                                    });

                                    jse.libs.emails.getAttachmentsSize($('#attachments-size'));
                                    $table.DataTable().ajax.reload();
                                    $this.dialog('close');
                                })
                                .fail(function (response) {
                                    var title = jse.core.lang.translate('error', 'messages');

                                    jse.libs.modal.message({
                                        title: title,
                                        content: response.message
                                    });
                                });

                            $(this).dialog('close');
                        }
                    }
                ]
            };

            jse.libs.modal.message(modalOptions);
        };

        // ------------------------------------------------------------------------
        // INITIALIZATION
        // ------------------------------------------------------------------------

        /**
         * Initialize method of the module, called by the engine.
         */
        module.init = function (done) {
            $this.on('click', '#delete-old-attachments', _onDeleteOldAttachments);
            done();
        };

        return module;
    });