<?php
/**
 * MainWP Manage Groups.
 *
 * @package MainWP/Dashboard
 */

namespace MainWP\Dashboard;

/**
 * Class MainWP_Manage_Groups
 *
 * @package MainWP\Dashboard
 */
class MainWP_Manage_Groups { // phpcs:ignore Generic.Classes.OpeningBraceSameLine.ContentAfterBrace -- NOSONAR.

    /**
     * Get Class Name
     *
     * @return string __CLASS__
     */
    public static function get_class_name() {
        return __CLASS__;
    }

    /**
     * Public static varable to hold Subpages information.
     *
     * @var array $subPages
     */
    public static $subPages;

    /**
     * Method init()
     *
     * Initiate hooks for the users page.
     */
    public static function init() {
        /**
         * This hook allows you to render the Tags page header via the 'mainwp_pageheader_tags' action.
         *
         * @link http://codex.mainwp.com/#mainwp-pageheader-tags
         *
         * This hook is normally used in the same context of 'mainwp_getsubpages_tags'
         * @link http://codex.mainwp.com/#mainwp-getsubpages-tags
         *
         * @see \MainWP_Manage_Groups::render_header
         */
        add_action( 'mainwp_pageheader_tags', array( static::get_class_name(), 'render_header' ) );

        /**
         * This hook allows you to render the Tags page footer via the 'mainwp_pagefooter_tags' action.
         *
         * @link http://codex.mainwp.com/#mainwp-pagefooter-tags
         *
         * This hook is normally used in the same context of 'mainwp_getsubpages_tags'
         * @link http://codex.mainwp.com/#mainwp-getsubpages-tags
         *
         * @see \MainWP_Manage_Groups::render_footer
         */
        add_action( 'mainwp_pagefooter_tags', array( static::get_class_name(), 'render_footer' ) );

        add_action( 'mainwp_help_sidebar_content', array( static::get_class_name(), 'mainwp_help_content' ) );
    }


    /**
     * Method init_menu()
     *
     * Add Groups Sub Menu.
     */
    public static function init_menu() {
        add_submenu_page(
            'mainwp_tab',
            __( 'Tags', 'mainwp' ),
            '<div class="mainwp-hidden">' . esc_html__( 'Tags', 'mainwp' ) . '</div>',
            'read',
            'ManageGroups',
            array(
                static::get_class_name(),
                'render_all_groups',
            )
        );

        /**
         * This hook allows you to add extra sub pages to the Tags page via the 'mainwp-getsubpages-tags' filter.
         *
         * @link http://codex.mainwp.com/#mainwp-getsubpages-tags
         */
        static::$subPages = apply_filters( 'mainwp_getsubpages_tags', static::$subPages );

        static::init_left_menu( static::$subPages );
    }

    /**
     * Initiates Tags menu.
     *
     * @param array $subPages Sub pages array.
     *
     * @uses \MainWP\Dashboard\MainWP_Menu::add_left_menu()
     * @uses \MainWP\Dashboard\MainWP_Menu::init_subpages_left_menu()
     * @uses \MainWP\Dashboard\MainWP_Menu::is_disable_menu_item()
     */
    public static function init_left_menu( $subPages = array() ) {
        MainWP_Menu::add_left_menu(
            array(
                'title'         => esc_html__( 'Tags', 'mainwp' ),
                'parent_key'    => 'managesites',
                'slug'          => 'ManageGroups',
                'href'          => 'admin.php?page=ManageGroups',
                'icon'          => '<i class="tags icon"></i>',
                'desc'          => 'Manage tags on your MainWP Dashboard',
                'leftsub_order' => 3,
            ),
            1
        );

        $init_sub_subleftmenu = array(
            array(
                'title'      => esc_html__( 'Manage Tags', 'mainwp' ),
                'parent_key' => 'ManageGroups',
                'href'       => 'admin.php?page=ManageGroups',
                'slug'       => 'ManageGroups',
                'right'      => 'manage_groups',
            ),
        );

        MainWP_Menu::init_subpages_left_menu( $subPages, $init_sub_subleftmenu, 'ManageGroups', 'ManageGroups' );

        foreach ( $init_sub_subleftmenu as $item ) {
            if ( MainWP_Menu::is_disable_menu_item( 3, $item['slug'] ) ) {
                continue;
            }
            MainWP_Menu::add_left_menu( $item, 2 );
        }
    }

    /**
     * Method render_header()
     *
     * Render Tags page header.
     *
     * @param string $shownPage The page slug shown at this moment.
     *
     * @uses \MainWP\Dashboard\MainWP_Menu::is_disable_menu_item()
     * @uses \MainWP\Dashboard\MainWP_UI::render_top_header()
     * @uses \MainWP\Dashboard\MainWP_UI::render_page_navigation()
     */
    public static function render_header( $shownPage = '' ) {
        $params = array(
            'title' => esc_html__( 'Tags', 'mainwp' ),
        );
        MainWP_UI::render_top_header( $params );

        $renderItems = array();

        if ( \mainwp_current_user_can( 'dashboard', 'manage_groups' ) ) {
            $renderItems[] = array(
                'title'  => esc_html__( 'Manage Tags', 'mainwp' ),
                'href'   => 'admin.php?page=ManageGroups',
                'active' => ( 'ManageGroups' === $shownPage ) ? true : false,
            );
        }

        if ( isset( static::$subPages ) && is_array( static::$subPages ) ) {
            foreach ( static::$subPages as $subPage ) {
                if ( MainWP_Menu::is_disable_menu_item( 3, 'ManageGroups' . $subPage['slug'] ) ) {
                    continue;
                }

                $item           = array();
                $item['title']  = $subPage['title'];
                $item['href']   = 'admin.php?page=ManageGroups' . $subPage['slug'];
                $item['active'] = ( $subPage['slug'] === $shownPage ) ? true : false;
                $renderItems[]  = $item;
            }
        }

        MainWP_UI::render_page_navigation( $renderItems );
    }

    /**
     * Method render_footer()
     *
     * Render Tags page footer. Closes the page container.
     */
    public static function render_footer() {
        echo '</div>';
    }

    /**
     * Method get_group_list_content()
     *
     * Get group list contents.
     *
     * @uses \MainWP\Dashboard\MainWP_DB_Common::get_groups_and_count()
     */
    public static function get_group_list_content() {

        $groups = MainWP_DB_Common::instance()->get_groups_and_count();

        foreach ( $groups as $group ) {
            static::create_group_item( $group );
        }
    }

    /**
     * Metod create_group_item()
     *
     * Group Data Table Row.
     *
     * @param array $group Array of group data.
     */
    private static function create_group_item( $group ) {
        ?>
        <a class="item" id="<?php echo intval( $group->id ); ?>" style="border-left: 4px solid <?php echo empty( $group->color ) ? '#fff' : esc_attr( $group->color ); ?>">
            <div class="ui small label"><?php echo property_exists( $group, 'nrsites' ) ? intval( $group->nrsites ) : 0; ?></div>
            <input type="hidden" value="<?php echo esc_html( stripslashes( $group->name ) ); ?>" id="mainwp-hidden-group-name">
            <input type="hidden" value="<?php echo esc_html( $group->color ); ?>" id="mainwp-hidden-group-color">
            <input type="hidden" value="<?php echo intval( $group->id ); ?>" id="mainwp-hidden-group-id">
            <?php echo esc_html( stripslashes( $group->name ) ); ?>
        </a>
        <?php
    }

    /**
     * Method get_website_list_content()
     *
     * Get the Child Site list content.
     *
     * @uses \MainWP\Dashboard\MainWP_DB::query()
     * @uses \MainWP\Dashboard\MainWP_DB::get_sql_websites_for_current_user()
     * @uses \MainWP\Dashboard\MainWP_DB::fetch_object()
     * @uses \MainWP\Dashboard\MainWP_DB::free_result()
     * @uses  \MainWP\Dashboard\MainWP_Utility::get_nice_url()
     */
    public static function get_website_list_content() {
        $websites = MainWP_DB::instance()->query( MainWP_DB::instance()->get_sql_websites_for_current_user() );

        while ( $websites && ( $website = MainWP_DB::fetch_object( $websites ) ) ) {
            $note       = html_entity_decode( $website->note );
            $esc_note   = MainWP_Utility::esc_content( $note );
            $strip_note = wp_strip_all_tags( $esc_note );
            ?>
            <tr id="<?php echo esc_attr( $website->id ); ?>">
                <td class="check-column collapsing">
                    <div class="item ui checkbox">
                        <input type="checkbox" name="sites" class="mainwp-site-checkbox" value="<?php echo esc_attr( $website->id ); ?>" id="<?php echo 'site-' . esc_attr( $website->id ); ?>" >
                    </div>
                </td>
                <td><a href="admin.php?page=managesites&dashboard=<?php echo intval( $website->id ); ?>" data-tooltip="<?php esc_attr_e( 'Go to the site overview.', 'mainwp' ); ?>" data-position="right center" data-inverted=""><?php echo esc_html( stripslashes( $website->name ) ); ?></a></td>
                <td>
                    <a href="admin.php?page=SiteOpen&newWindow=yes&websiteid=<?php echo intval( $website->id ); ?>&_opennonce=<?php echo esc_html( wp_create_nonce( 'mainwp-admin-nonce' ) ); ?>" data-tooltip="<?php esc_attr_e( 'Jump to the site WP Admin . ', 'mainwp' ); ?>" data-position="left center" data-inverted="" class="open_newwindow_wpadmin" target="_blank"><i class="sign in icon"></i></a>
                </td>
                <td><a href="<?php echo esc_url( $website->url ); ?>" class="ui grey text" target="_blank"><?php echo esc_html( $website->url ); ?></a></td>
                <td><a href="<?php echo 'admin.php?page=ManageClients&client_id=' . intval( $website->client_id ); ?>" data-tooltip="<?php esc_attr_e( 'Jump to the client', 'mainwp' ); ?>" data-position="right center" data-inverted="" ><?php echo esc_html( $website->client_name ); ?></a></td>
                <td class="not-selectable">
                    <span class="mainwp-preview-item" data-position="left center" data-inverted="" data-tooltip="<?php esc_attr_e( 'Click to see the site homepage screenshot . ', 'mainwp' ); ?>" preview-site-url="<?php echo esc_url( $website->url ); ?>" ><i class="camera icon"></i></span>
                </td>
                <td class="not-selectable">
                <?php if ( empty( $website->note ) ) : ?>
                    <a href="javascript:void(0)" class="mainwp-edit-site-note" id="mainwp-notes-<?php echo intval( $website->id ); ?>" data-tooltip="<?php esc_attr_e( 'Click to add a note . ', 'mainwp' ); ?>" data-position="left center" data-inverted=""><i class="sticky note outline icon"></i></a>
                <?php else : ?>
                    <a href="javascript:void(0)" class="mainwp-edit-site-note" id="mainwp-notes-<?php echo intval( $website->id ); ?>" data-tooltip="<?php echo substr( wp_unslash( $strip_note ), 0, 100 ); // phpcs:ignore WordPress.Security.EscapeOutput ?>" data-position="left center" data-inverted=""><i class="sticky green note icon"></i></a>
                <?php endif; ?>
                    <span style="display: none" id="mainwp-notes-<?php echo intval( $website->id ); ?>-note"><?php echo wp_unslash( $esc_note ); // phpcs:ignore WordPress.Security.EscapeOutput ?></span>
                </td>
            </tr>
            <?php
        }
        MainWP_DB::free_result( $websites );
    }

    /**
     * Method render_all_groups()
     *
     * Render MainWP Groups Table.
     *
     * @return string MainWP Groups Table.
     */
    public static function render_all_groups() {
        if ( ! \mainwp_current_user_can( 'dashboard', 'manage_groups' ) ) {
            \mainwp_do_not_have_permissions( esc_html__( 'manage groups', 'mainwp' ) );

            return;
        }

        $sidebarPosition = get_user_option( 'mainwp_sidebarPosition' );
        if ( false === $sidebarPosition ) {
            $sidebarPosition = 1;
        }

        /**
         * Sites Page header
         *
         * Renders the tabs on the Sites screen.
         *
         * @since Unknown
         */
        do_action( 'mainwp_pageheader_tags', 'ManageGroups' );
        ?>
        <div id="mainwp-manage-groups" class="ui segment">
            <div id="mainwp-message-zone" style="display: none;">
                <div class="ui message green"><?php esc_html_e( 'Selection saved successfully . ', 'mainwp' ); ?></div>
            </div>
            <?php if ( MainWP_Utility::show_mainwp_message( 'notice', 'mainwp_groups_info' ) ) { ?>
            <div class="ui message info">
                <i class="close icon mainwp-notice-dismiss" notice-id="mainwp_groups_info"></i>
                    <div><?php esc_html_e( 'In case you are managing a large number of WordPress sites, it could be useful for you to mark them with different tags . Later, you will be able to make Site Selection by a tag that will speed up your work and makes it much easier.', 'mainwp' ); ?></div>
                    <div><?php esc_html_e( 'One child site can be assigned to multiple Tags at the same time.', 'mainwp' ); ?></div>
                    <div><?php printf( esc_html__( 'for more information check the %1$sKnowledge Base %2$s.', 'mainwp' ), '<a href="https://mainwp.com/kb/manage-child-site-groups/" target="_blank">', '</a> <i class="external alternate icon"></i>' ); // NOSONAR - noopener - open safe. ?></div>
            </div>
            <?php } ?>
            <?php
            /**
             * Action: mainwp_before_groups_table
             *
             * Fires before the Manage Groups table.
             *
             * @since 4.1
             */
            do_action( 'mainwp_before_groups_table' );
            ?>
            <div class="ui stackable grid">
                <div class="<?php echo 1 === (int) $sidebarPosition ? 'twelve' : 'four'; ?> wide column">
                    <?php if ( 1 === (int) $sidebarPosition ) : ?>
                        <?php static::render_groups_sites_table_element(); ?>
                    <?php else : ?>
                        <?php static::render_groups_menu_element(); ?>
                    <?php endif; ?>
                </div>
                <div class="<?php echo 1 === (int) $sidebarPosition ? 'four' : 'twelve'; ?> wide column">
                    <?php if ( 1 === (int) $sidebarPosition ) : ?>
                        <?php static::render_groups_menu_element(); ?>
                    <?php else : ?>
                        <?php static::render_groups_sites_table_element(); ?>
                    <?php endif; ?>
                </div>
                <script type="text/javascript">
                let responsive = true;
                if( jQuery( window ).width() > 1140 ) {
                    responsive = false;
                }
                jQuery( document ).ready( function() {
                    jQuery( '#mainwp-manage-groups-sites-table' ).DataTable( {
                        'searching' : true,
                        'responsive' : responsive,
                        'colReorder' : true,
                        'stateSave':  true,
                        'paging': false,
                        'info': false,
                        'order': [ [ 1, "asc" ] ],
                        'scrollX' : false,
                        'columnDefs': [ {
                            "targets": 'no-sort',
                            "orderable": false
                        } ],
                        'preDrawCallback': function( settings ) {
                            jQuery( '#mainwp-manage-groups-sites-table .ui.checkbox' ).checkbox();
                        },
                        'select': {
                            items: 'row',
                            style: 'multi+shift',
                            selector: 'tr>td:not(.not-selectable)'
                        }
                    }).on('select', function (e, dt, type, indexes) {
                        console.log('select');
                        if( 'row' == type ){
                            dt.rows(indexes)
                            .nodes()
                            .to$().find('td.check-column .ui.checkbox' ).checkbox('set checked');
                        }
                    }).on('deselect', function (e, dt, type, indexes) {
                        if( 'row' == type ){
                            dt.rows(indexes)
                            .nodes()
                            .to$().find('td.check-column .ui.checkbox' ).checkbox('set unchecked');
                        }
                    } ).on( 'columns-reordered', function ( e, settings, details ) {
                            console.log('columns-reordered');
                            setTimeout(() => {
                                jQuery( '#mainwp-manage-groups-sites-table .ui.checkbox' ).checkbox();
                                mainwp_datatable_fix_menu_overflow('#mainwp-manage-groups-sites-table' );
                            }, 1000);
                        } );
                    mainwp_datatable_fix_to_update_rows_state('#mainwp-manage-groups-sites-table'); // to fix saved rows state.
            } );
                </script>
            </div>
            <?php MainWP_UI::render_modal_edit_notes(); ?>
            <div class="ui mini modal" id="mainwp-create-group-modal">
            <i class="close icon"></i>
                <div class="header"><?php echo esc_html__( 'Create Tag', 'mainwp' ); ?></div>
                <div class="content">
                    <div class="ui form">
                        <div class="field">
                            <label><?php esc_html_e( 'Enter tag name', 'mainwp' ); ?></label>
                            <input type="text" value="" name="mainwp-group-name" id="mainwp-group-name">
                        </div>
                        <div class="field">
                            <label><?php esc_html_e( 'Select tag color', 'mainwp' ); ?></label>
                            <input type="color" name="mainwp-new-tag-color" class="mainwp-color-picker-input" id="mainwp-new-tag-color"  value="" />
                        </div>
                    </div>
                </div>
                <div class="actions">
                    <div class="ui two columns grid">
                        <div class="left aligned column">

                        </div>
                        <div class="right aligned column">
                        <a class="ui green button" id="mainwp-save-new-group-button" href="#"><?php echo esc_html__( 'Create Tag', 'mainwp' ); ?></a>
                        </div>
                    </div>
                </div>
                <style>
                    .mainwp-ui .ui.modal .wp-picker-clear {
                        display:none;
                    }
                    .mainwp-ui .ui.modal #mainwp-new-tag-color {
                        height: 28px;
                        margin-left: 5px;
                    }
                </style>
            </div>

            <div class="ui mini modal" id="mainwp-rename-group-modal">
            <i class="close icon"></i>
                <div class="header"><?php echo esc_html__( 'Rename Tag', 'mainwp' ); ?></div>
                <div class="content">
                    <div class="ui form">
                        <div class="field">
                            <label><?php esc_html_e( 'Enter tag name', 'mainwp' ); ?></label>
                            <input type="text" value="" name="mainwp-group-name" id="mainwp-group-name">
                        </div>
                        <div class="field">
                            <label><?php esc_html_e( 'Select tag color', 'mainwp' ); ?></label>
                            <input type="color" name="mainwp-new-tag-color mainwp-color-picker-input" class="mainwp-color-picker-input" id="mainwp-new-tag-color" value="" />
                        </div>
                    </div>
                </div>
                <div class="actions">
                    <div class="ui two columns stackable grid">
                        <div class="left aligned column">

                        </div>
                        <div class="right aligned column">
                        <a class="ui green button" id="mainwp-update-new-group-button" href="#"><?php echo esc_html__( 'Update Tag', 'mainwp' ); ?></a>
                        </div>
                    </div>
                </div>
                <style>
                    .mainwp-ui .ui.modal .wp-picker-clear {
                        display:none;
                    }
                    .mainwp-ui .ui.modal #mainwp-new-tag-color {
                        height: 28px;
                        margin-left: 5px;
                    }
                </style>
            </div>
            <?php
            /**
             * Action: mainwp_after_groups_table
             *
             * Fires after the Manage Groups table.
             *
             * @since 4.1
             */
            do_action( 'mainwp_after_groups_table' );
            ?>
        </div>
        <?php
        /**
         * Sites Page Footer
         *
         * Renders the footer on the Sites screen.
         *
         * @since Unknown
         */
        do_action( 'mainwp_pagefooter_tags', 'ManageGroups' );
    }

    /**
     * Method render_groups_menu_element()
     *
     * Render the groups menu HTML element.
     */
    public static function render_groups_menu_element() {
        $sidebarPosition = get_user_option( 'mainwp_sidebarPosition' );
        if ( false === $sidebarPosition ) {
            $sidebarPosition = 1;
        }
        ?>
        <div class="ui fluid <?php echo 1 === (int) $sidebarPosition ? 'right' : ''; ?> pointing vertical menu sticky" id="mainwp-groups-menu" style="margin-top:52px">
            <h4 class="item ui header"><?php esc_html_e( 'Tags', 'mainwp' ); ?></h4>
        <?php static::get_group_list_content(); ?>
            <div class="item">
                <div class="ui two columns stackable grid">
                    <div class="left aligned column">
                        <a href="javascript:void(0);" class="ui mini green button" id="mainwp-new-sites-group-button" data-inverted="" data-position="top left" data-tooltip="<?php esc_attr_e( 'Click here to create a new tag.', 'mainwp' ); ?>"><?php esc_html_e( 'New Tag', 'mainwp' ); ?></a>
                    </div>
                    <div class="right aligned column">
                        <a href="javascript:void(0);" class="ui mini icon green basic button disabled" id="mainwp-rename-group-button" data-inverted="" data-position="top right" data-tooltip="<?php esc_attr_e( 'Edit selected tag.', 'mainwp' ); ?>"><i class="pen icon"></i></a>
                        <a href="javascript:void(0);" class="ui mini icon basic button disabled" id="mainwp-delete-group-button" data-inverted="" data-position="top right" data-tooltip="<?php esc_attr_e( 'Delete selected tag.', 'mainwp' ); ?>"><i class="trash icon"></i></a>
                    </div>
                </div>
            </div>
        </div>
        <?php
    }

    /**
     * Method render_groups_sites_table_element()
     *
     * Render the groups menu HTML element.
     */
    public static function render_groups_sites_table_element() {
        ?>
        <table class="ui compact table mainwp-with-preview-table" id="mainwp-manage-groups-sites-table">
            <thead>
                <tr>
                    <th scope="col" class="no-sort collapsing check-column"><div class="ui checkbox" data-tooltip="<?php esc_attr_e( 'Click to select all sites.', 'mainwp' ); ?>" data-position="left center" data-inverted=""><input type="checkbox" id="cb-select-all-top" name="example"></div></th>
                    <th scope="col" ><?php esc_html_e( 'Sites', 'mainwp' ); ?></th>
                    <th scope="col" class="no-sort collapsing"><i class="sign in icon"></i></th>
                    <th scope="col" ><?php esc_html_e( 'URL', 'mainwp' ); ?></th>
                    <th scope="col" ><?php esc_html_e( 'Client', 'mainwp' ); ?></th>
                    <th scope="col" class="no-sort collapsing"><i class="camera icon"></i></th>
                    <th scope="col" class="no-sort collapsing"><i class="sticky note outline icon"></i></th>
                </tr>
            </thead>
            <tbody>
            <?php static::get_website_list_content(); ?>
            </tbody>
        </table>
        <div class="ui hidden fitted divider"></div>
        <a href="#" class="ui green button" id="mainwp-save-sites-groups-selection-button" data-inverted="" data-position="top left" data-tooltip="<?php esc_attr_e( 'Save the selected tag sites selection.', 'mainwp' ); ?>"><?php esc_html_e( 'Save Selection', 'mainwp' ); ?></a>
        <div class="ui hidden divider"></div>
        <div class="ui inverted dimmer">
            <div class="ui loader"></div>
        </div>
        <?php
    }

    /**
     * Method rename_group()
     *
     * Rename the selected group.
     *
     * @uses \MainWP\Dashboard\MainWP_DB_Common::get_group_by_id()
     * @uses \MainWP\Dashboard\MainWP_DB_Common::update_group()
     */
    public static function rename_group() { //phpcs:ignore -- NOSONAR - complex.
        // phpcs:disable WordPress.Security.NonceVerification,WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
        if ( isset( $_POST['groupId'] ) ) {
            $group = MainWP_DB_Common::instance()->get_group_by_id( intval( $_POST['groupId'] ) );
            if ( ! empty( $group ) ) {
                $old_name = $group->name;
                $name     = isset( $_POST['newName'] ) ? sanitize_text_field( wp_unslash( $_POST['newName'] ) ) : '';
                if ( empty( $name ) ) {
                    $name = $group->name;
                }

                $name = static::check_group_name( $name, $group->id );

                if ( isset( $_POST['newColor'] ) && ! empty( $_POST['newColor'] ) ) {
                    $color = sanitize_hex_color( wp_unslash( $_POST['newColor'] ) );
                    if ( empty( $color ) ) {
                        $color = $group->color;
                    }
                } else {
                    $color = '';
                }
                // update group.
                MainWP_DB_Common::instance()->update_group( $group->id, $name, $color );

                // Reload group.
                $group = MainWP_DB_Common::instance()->get_group_by_id( $group->id );

                $data = array(
                    'old_name' => $old_name,
                );

                /**
                 * Fires after a new sites tag has been created.
                 *
                 * @param object $group tag created.
                 * @param string tag action.
                 * @param array other data array.
                 */
                do_action( 'mainwp_site_tag_action', $group, 'updated', $data );

                die( wp_json_encode( array( 'result' => $group->name ) ) );
            }
        }
        //phpcs:enable
    }

    /**
     * Method delete_group()
     *
     * Delete the selected group.
     *
     * @uses \MainWP\Dashboard\MainWP_DB_Common::get_group_by_id()
     * @uses \MainWP\Dashboard\MainWP_DB_Common::remove_group()
     */
    public static function delete_group() {
        //phpcs:disable WordPress.Security.NonceVerification.Missing
        $groupid = isset( $_POST['groupId'] ) && ! empty( $_POST['groupId'] ) ? intval( $_POST['groupId'] ) : false;
        //phpcs:enable
        if ( $groupid ) {
            $success = MainWP_DB_Common::instance()->remove_group( $groupid );
            if ( $success ) {
                die( 'OK' );
            }
        }
        die( 'ERROR' );
    }

    /**
     * Method check_group_name()
     *
     * Check if group name already exists
     * if it does add a number to the end of it.
     *
     * @param mixed $groupName Given Group Name.
     * @param null  $groupId Group ID.
     *
     * @return string $groupName Group name + count # if group has bn found.
     *
     * @uses \MainWP\Dashboard\MainWP_DB_Common::get_group_by_name()
     */
    public static function check_group_name( $groupName, $groupId = null ) {
        if ( empty( $groupName ) ) {
            $groupName = esc_html__( 'New tag', 'mainwp' );
        }

        $groupName = esc_html( $groupName );

        $cnt = null;
        if ( preg_match( '/(.*) \(\d\)/', $groupName, $matches ) ) {
            $groupName = $matches[1];
        }

        $group = MainWP_DB_Common::instance()->get_group_by_name( $groupName );
        while ( $group && ( ( null === $groupId ) || ( (int) $group->id !== (int) $groupId ) ) ) {
            if ( null === $cnt ) {
                $cnt = 1;
            } else {
                ++$cnt;
            }

            $group = MainWP_DB_Common::instance()->get_group_by_name( $groupName . ' (' . $cnt . ')' );
        }

        return $groupName . ( null === $cnt ? '' : ' (' . $cnt . ')' );
    }

    /**
     * Method add_group()
     *
     * Add Group.
     *
     * @uses \MainWP\Dashboard\MainWP_DB_Common::add_group()
     * @uses \MainWP\Dashboard\MainWP_DB_Common::get_group_by_id()
     */
    public static function add_group() {

        /**
         * Current user global.
         *
         * @global string
         */
        global $current_user;

        //phpcs:disable WordPress.Security.NonceVerification.Missing
        $newName  = isset( $_POST['newName'] ) ? sanitize_text_field( wp_unslash( $_POST['newName'] ) ) : '';
        $newColor = isset( $_POST['newColor'] ) ? sanitize_hex_color( wp_unslash( $_POST['newColor'] ) ) : '';
        //phpcs:enable

        if ( ! empty( $newName ) ) {
            $groupId = MainWP_DB_Common::instance()->add_group( $current_user->ID, static::check_group_name( $newName ), $newColor );

            /**
             * New Group Added
             *
             * Fires after a new sites group has been created.
             *
             * @param int $groupId Group ID.
             */
            do_action( 'mainwp_added_new_group', $groupId );
            $group = MainWP_DB_Common::instance()->get_group_by_id( $groupId );
            static::create_group_item( $group );
            die();
        }
        die( wp_json_encode( array( 'error' => 1 ) ) );
    }

    /**
     * Method add_group_sites()
     *
     * Add Group sites.
     *
     * @param string $gname Group Name.
     * @param array  $site_ids Sites IDs.
     * @param string $gcolor Tag color.
     */
    public static function add_group_sites( $gname, $site_ids, $gcolor = '' ) {
        /**
         * Current user global.
         *
         * @global string
         */
        global $current_user;

        $groupId = MainWP_DB_Common::instance()->add_group( $current_user->ID, static::check_group_name( $gname ), $gcolor );

        if ( $groupId ) {
            $group = MainWP_DB_Common::instance()->get_group_by_id( $groupId );
            if ( ! empty( $group ) && ! empty( $site_ids ) ) {
                foreach ( $site_ids as $websiteId ) {
                    $website = MainWP_DB::instance()->get_website_by_id( $websiteId );
                    if ( MainWP_System_Utility::can_edit_website( $website ) ) {
                        MainWP_DB_Common::instance()->update_group_site( $group->id, $website->id );
                    }
                }
            }

            /**
             * New Group Added
             *
             * Fires after a new sites group has been created.
             *
             * @param int $groupId Group ID.
             */
            do_action( 'mainwp_added_new_group', $groupId );
            return true;
        }

        return false;
    }

    /**
     * Method update_group()
     *
     * Update groups Sites.
     *
     * @uses \MainWP\Dashboard\MainWP_DB_Common::get_group_by_id()
     * @uses \MainWP\Dashboard\MainWP_DB_Common::clear_group()
     * @uses \MainWP\Dashboard\MainWP_DB_Common::update_group_site()
     * @uses \MainWP\Dashboard\MainWP_DB::get_website_by_id()
     * @uses \MainWP\Dashboard\MainWP_System_Utility::can_edit_website()
     */
    public static function update_group() { //phpcs:ignore -- NOSONAR - complex.
         // phpcs:disable WordPress.Security.NonceVerification,WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
        $groupid = isset( $_POST['groupId'] ) && ! empty( $_POST['groupId'] ) ? intval( $_POST['groupId'] ) : false;
        if ( $groupid ) {
            $group = MainWP_DB_Common::instance()->get_group_by_id( $groupid );
            if ( ! empty( $group ) ) {
                MainWP_DB_Common::instance()->clear_group( $group->id );
                if ( isset( $_POST['websiteIds'] ) ) {
                    foreach ( array_map( 'sanitize_text_field', wp_unslash( $_POST['websiteIds'] ) ) as $websiteId ) {
                        $website = MainWP_DB::instance()->get_website_by_id( $websiteId );
                        if ( MainWP_System_Utility::can_edit_website( $website ) ) {
                            MainWP_DB_Common::instance()->update_group_site( $group->id, $website->id );
                        }
                    }
                }
                die( wp_json_encode( array( 'result' => true ) ) );
            }
        }
        // phpcs:enable

        die( wp_json_encode( array( 'result' => false ) ) );
    }

    /**
     * Method mainwp_help_content()
     *
     * Creates the MainWP Help Documentation List for the help component in the sidebar.
     */
    public static function mainwp_help_content() {
        if ( isset( $_GET['page'] ) && 'ManageGroups' === $_GET['page'] ) { // phpcs:ignore WordPress.Security.NonceVerification
            ?>
            <p><?php esc_html_e( 'If you need help with managing tags, please review following help documents', 'mainwp' ); ?></p>
            <div class="ui list">
                <div class="item"><i class="external alternate icon"></i> <a href="https://mainwp.com/kb/manage-child-sites/#manage-child-site-tags" target="_blank">Manage Tags</a></div>
            <?php
            /**
             * Action: mainwp_tags_help_item
             *
             * Fires at the bottom of the help articles list in the Help sidebar on the Tags page.
             *
             * Suggested HTML markup:
             *
             * <div class="item"><a href="Your custom URL">Your custom text</a></div>
             *
             * @since 4.1
             */
            do_action( 'mainwp_tags_help_item' );
            ?>
            </div>
            <?php
        }
    }
}
