kompass/modules/Mail/Controllers/MailController.php

<?php
namespace Bdp\Modules\Mail\Controllers;


use Bdp\Libs\FileAccess;
use SearchMemberRequest;

class MailController
{
    public function __construct()
    {
	    add_menu_page(
		    __('E-Mail', BDP_LV_PLUGIN_SLUG),
		    __('E-Mail', BDP_LV_PLUGIN_SLUG),
		    'send_mails',
		    'kompass-mail',
		    [$this, 'router'],
		    'dashicons-email',
		    4
	    );
    }

    public function router()
    {
		if (isset($_REQUEST['action'])) {
            switch ($_REQUEST['action']) {
                case 'send-email':
                    new Sendmail();
                    new MailCompose();
	                break;

	            case 'create_group_form':
		            new \Bdp\Modules\Gruppen\Controllers\CreateGroupController();
		            break;

	            case 'update-group':
					\UpdateGroupAction::execute(['gruppen_name' => $_REQUEST['kompass_groups_group_name']],
						(int)$_REQUEST['group_id']);

					new \Bdp\Modules\Gruppen\Controllers\PrintGroupsController();
					break;

	            case 'create-group':
					$data = ['gruppen_name' => $_REQUEST['kompass_groups_group_name']];
					\CreateGroupAction::execute($data);
					new \Bdp\Modules\Gruppen\Controllers\PrintGroupsController();
					break;

	            case 'new-member':
		            new \Bdp\Modules\Gruppen\Controllers\CreateMemberController();
		            break;

	            case 'create-member':
					$userData = \CreateGroupMemberDataAction::execute($_REQUEST);
					if (count($userData['errors']) === 0) {
						$memberId = \CreateGroupMemberAction::execute( $userData['data'] );
						new \Bdp\Modules\Gruppen\Controllers\PrintMemberController($memberId);
					} else {
						kompass_print_message_box(implode('<br />', $userData['errors']), 'error');
						new \Bdp\Modules\Gruppen\Controllers\CreateMemberController($userData['rawData']);
						exit;
					}
		            new \Bdp\Modules\Gruppen\Controllers\PrintGroupsController();
		            break;

	            case 'show-members':
					$memberList = \ListMemberRequest::listForGroup((int)$_REQUEST['group-id']);
		            new \Bdp\Modules\Gruppen\Controllers\PrintMemberListController($memberList);
					break;

	            case 'show-member':
		            new \Bdp\Modules\Gruppen\Controllers\PrintMemberController((int)$_REQUEST['member-id']);
		            break;

	            case 'compose-mail':
					current_user_can('send_mails');
		            break;

	            case 'delete-group':
	            if (current_user_can('delete_groups')) {
	            }
					break;
	            case 'edit-group':
		            if (current_user_can('edit_groups')) {
						kompass_edit_group_form($_REQUEST['group-id']);
		            }
					break;

	            default:
            }
        } else {
	        new MailCompose();
        }
    }

	private function listMembers()
	{

	}

    private function printMembers(array $memberList)
    {

    }

}