<?php
/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */

namespace Icinga\Controllers;

use Exception;
use Icinga\Application\Config;
use Icinga\Exception\NotFoundError;
use Icinga\Forms\Config\UserGroup\UserGroupBackendForm;
use Icinga\Forms\ConfirmRemovalForm;
use Icinga\Web\Controller;
use Icinga\Web\Notification;

/**
 * Controller to configure user group backends
 */
class UsergroupbackendController extends Controller
{
    /**
     * Initialize this controller
     */
    public function init()
    {
        $this->assertPermission('config/access-control/users');
    }

    /**
     * Redirect to this controller's list action
     */
    public function indexAction()
    {
        $this->redirectNow('config/userbackend');
    }

    /**
     * Create a new user group backend
     */
    public function createAction()
    {
        $form = new UserGroupBackendForm();
        $form->setRedirectUrl('config/userbackend');
        $form->addDescription($this->translate('Create a new backend to associate users and groups with.'));
        $form->setIniConfig(Config::app('groups'));
        $form->setOnSuccess(function (UserGroupBackendForm $form) {
            try {
                $form->add($form::transformEmptyValuesToNull($form->getValues()));
            } catch (Exception $e) {
                $form->error($e->getMessage());
                return false;
            }

            if ($form->save()) {
                Notification::success(t('User group backend successfully created'));
                return true;
            }

            return false;
        });
        $form->handleRequest();

        $this->view->title = $this->translate('Authentication');
        $this->renderForm($form, $this->translate('New User Group Backend'));
    }

    /**
     * Edit an user group backend
     */
    public function editAction()
    {
        $backendName = $this->params->getRequired('backend');

        $form = new UserGroupBackendForm();
        $form->setRedirectUrl('config/userbackend');
        $form->setIniConfig(Config::app('groups'));
        $form->setOnSuccess(function (UserGroupBackendForm $form) use ($backendName) {
            try {
                $form->edit($backendName, $form::transformEmptyValuesToNull($form->getValues()));
            } catch (Exception $e) {
                $form->error($e->getMessage());
                return false;
            }

            if ($form->save()) {
                Notification::success(sprintf(t('User group backend "%s" successfully updated'), $backendName));
                return true;
            }

            return false;
        });

        try {
            $form->load($backendName);
            $form->handleRequest();
        } catch (NotFoundError $_) {
            $this->httpNotFound(sprintf($this->translate('User group backend "%s" not found'), $backendName));
        }

        $this->view->title = $this->translate('Authentication');
        $this->renderForm($form, $this->translate('Update User Group Backend'));
    }

    /**
     * Remove a user group backend
     */
    public function removeAction()
    {
        $backendName = $this->params->getRequired('backend');

        $backendForm = new UserGroupBackendForm();
        $backendForm->setIniConfig(Config::app('groups'));
        $form = new ConfirmRemovalForm();
        $form->setRedirectUrl('config/userbackend');
        $form->setOnSuccess(function (ConfirmRemovalForm $form) use ($backendName, $backendForm) {
            try {
                $backendForm->delete($backendName);
            } catch (Exception $e) {
                $form->error($e->getMessage());
                return false;
            }

            if ($backendForm->save()) {
                Notification::success(sprintf(t('User group backend "%s" successfully removed'), $backendName));
                return true;
            }

            return false;
        });
        $form->handleRequest();

        $this->view->title = $this->translate('Authentication');
        $this->renderForm($form, $this->translate('Remove User Group Backend'));
    }
}