<?php
namespace SGalinski\SgMail\Controller;

/***************************************************************
 *  Copyright notice
 *
 *  (c) sgalinski Internet Services (https://www.sgalinski.de)
 *
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

use SGalinski\SgMail\Domain\Model\Template;
use SGalinski\SgMail\Service\BackendService;
use SGalinski\SgMail\Service\MailTemplateService;
use SGalinski\SgMail\Session\PhpSession;
use TYPO3\CMS\Backend\Template\Components\DocHeaderComponent;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Messaging\FlashMessage;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\VersionNumberUtility;
use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
use TYPO3\CMS\Extbase\Object\ObjectManager;
use TYPO3\CMS\Extbase\Utility\LocalizationUtility;

/**
 * Controller for the mail templating service module
 */
class MailController extends ActionController {
	/**
	 * DocHeaderComponent
	 *
	 * @var DocHeaderComponent
	 */
	protected $docHeaderComponent;

	/**
	 * @var \TYPO3\CMS\Lang\Domain\Repository\LanguageRepository
	 * @inject
	 */
	protected $languageRepository;

	/**
	 * @var \SGalinski\SgMail\Domain\Repository\TemplateRepository
	 * @inject
	 */
	protected $templateRepository;

	/**
	 * @var \SGalinski\SgMail\Session\PhpSession
	 */
	protected $session;

	/**
	 * Show template Selection and enable content input + mail preview
	 *
	 * @param array $parameters
	 * @throws \InvalidArgumentException
	 * @throws \UnexpectedValueException
	 * @throws \TYPO3\CMS\Extbase\Mvc\Exception\StopActionException
	 * @throws \TYPO3\CMS\Extbase\Mvc\Exception\UnsupportedRequestTypeException
	 */
	public function indexAction(array $parameters = []) {
		$pid = (int) GeneralUtility::_GP('id');

		if (!($this->session instanceof PhpSession)) {
			$this->session = $this->objectManager->get(PhpSession::class);
			$this->session->setSessionKey('sg_mail_controller_session');
		}

		$registerArray = MailTemplateService::getRegisterArray();

		// if no extensions are registered, redirect to empty action
		if (empty($registerArray)) {
			$this->redirect('empty');
		}

		$languages = BackendService::getLanguages();

		$this->view->assign('languages', $languages);
		$this->view->assign('templates', MailTemplateService::getRegisterArray());

		// get language selection or read from cache or get default
		$selectedLanguages = BackendService::getSelectedLanguages(
			$parameters['selectedLanguageLeft'], $parameters['selectedLanguageRight'], $this->session, $languages
		);

		if ($parameters['selectedTemplate'] === NULL || $parameters['selectedTemplate'] === '') {
			$parameters['selectedExtension'] = key($registerArray);
			$parameters['selectedTemplate'] = key($registerArray[$parameters['selectedExtension']]);
		}

		$selectedTemplates = BackendService::getSelectedTemplates(
			$parameters['selectedExtension'], $parameters['selectedTemplate'], $selectedLanguages, $this->session,
			$pid
		);

		if ($selectedTemplates['left'] instanceof Template) {
			$this->view->assign('contentLeft', $selectedTemplates['left']->getContent());
			$this->view->assign('fromNameLeft', $selectedTemplates['left']->getFromName());
			$this->view->assign('fromMailLeft', $selectedTemplates['left']->getFromMail());
			$this->view->assign('ccLeft', $selectedTemplates['left']->getCc());
			$this->view->assign('bccLeft', $selectedTemplates['left']->getBcc());
			$this->view->assign('replyToLeft', $selectedTemplates['left']->getReplyTo());
		} else {
			$defaultTemplatePath = $registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['templatePath'];
			$defaultTemplateFile = $defaultTemplatePath . $selectedLanguages['left'] . '.' . 'template.html';
			if (file_exists($defaultTemplateFile)) {
				$this->view->assign('contentLeft', file_get_contents($defaultTemplateFile));
			}
		}

		if ($selectedTemplates['right'] instanceof Template) {
			$this->view->assign('contentRight', $selectedTemplates['right']->getContent());
			$this->view->assign('fromNameRight', $selectedTemplates['right']->getFromName());
			$this->view->assign('fromMailRight', $selectedTemplates['right']->getFromMail());
			$this->view->assign('ccRight', $selectedTemplates['right']->getCc());
			$this->view->assign('bccRight', $selectedTemplates['right']->getBcc());
			$this->view->assign('replyToRight', $selectedTemplates['right']->getReplyTo());
		} else {
			$defaultTemplatePath = $registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['templatePath'];
			$defaultTemplateFile = $defaultTemplatePath . $selectedLanguages['right'] . '.' . 'template.html';
			if (file_exists($defaultTemplateFile)) {
				$this->view->assign('contentRight', file_get_contents($defaultTemplateFile));
			}
		}

		$subject = $registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['subject'];

		if (is_array($subject)) {
			$this->view->assign(
				'subjectLeft', $selectedTemplates['left'] !== NULL ? $selectedTemplates['left']->getSubject() :
				$registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['subject'][$selectedLanguages['left']]
			);

			$this->view->assign(
				'subjectRight', $selectedTemplates['right'] !== NULL ? $selectedTemplates['right']->getSubject() :
				$registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['subject'][$selectedLanguages['right']]
			);
		} else {
			$translatedSubjects = BackendService::getTranslatedTemplateSubject(
				$subject, $parameters['selectedExtension'], $selectedLanguages
			);

			$this->view->assign(
				'subjectLeft', $selectedTemplates['left'] !== NULL ? $selectedTemplates['left']->getSubject() :
				$translatedSubjects['left']
			);

			$this->view->assign(
				'subjectRight', $selectedTemplates['right'] !== NULL ? $selectedTemplates['right']->getSubject() :
				$translatedSubjects['right']
			);
		}

		$templateDescription = $registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['description'];
		if (is_array($templateDescription)) {
			$templateDescription = $templateDescription[$selectedLanguages['left']];
		} else {
			$templateDescription = LocalizationUtility::translate(
				$templateDescription, $parameters['selectedExtension']
			);
		}

		// create doc header component
		$pageUid = (int) GeneralUtility::_GP('id');
		$pageInfo = BackendUtility::readPageAccess($pageUid, $GLOBALS['BE_USER']->getPagePermsClause(1));

		if ($pageInfo && $pageInfo['is_siteroot'] === '1') {

			$this->view->assign('templateDescription', $templateDescription);
			$this->view->assign(
				'selectedTemplate', $registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]
			);
			$this->view->assign('selectedTemplateKey', $parameters['selectedTemplate']);
			$this->view->assign('selectedExtensionKey', $parameters['selectedExtension']);
			$this->view->assign('selectedLanguageLeft', $selectedLanguages['left']);
			$this->view->assign('selectedLanguageRight', $selectedLanguages['right']);
			$this->view->assign('mode', 'editor');
		} else {
			$this->view->assign('pages', BackendService::getPages());
		}

		$this->docHeaderComponent = GeneralUtility::makeInstance(DocHeaderComponent::class);
		$this->docHeaderComponent->setMetaInformation($pageInfo);
		BackendService::makeButtons($this->docHeaderComponent, $this->request);

		$this->view->assign('docHeader', $this->docHeaderComponent->docHeaderContent());
		$this->view->assign('typo3Version', VersionNumberUtility::convertVersionNumberToInteger(TYPO3_version));
		$this->view->assign('beUserMail', $GLOBALS['BE_USER']->user['email']);
	}

	/**
	 * Save or update the template in the DB, depending if it already exists or not
	 *
	 * @param string $selectedExtension
	 * @param string $selectedTemplate
	 * @param string $selectedLanguage
	 * @param string $selectedContent
	 * @param string $selectedSubject
	 * @param string $selectedFromName
	 * @param string $selectedFromMail
	 * @param string $selectedCc
	 * @param string $selectedBcc
	 * @param string $selectedReplyTo
	 * @return Template $template
	 * @throws \InvalidArgumentException
	 * @throws \TYPO3\CMS\Extbase\Persistence\Exception\IllegalObjectTypeException
	 * @throws \TYPO3\CMS\Extbase\Persistence\Exception\UnknownObjectException
	 */
	private function saveTemplate(
		$selectedExtension, $selectedTemplate, $selectedLanguage, $selectedContent, $selectedSubject,
		$selectedFromName, $selectedFromMail, $selectedCc, $selectedBcc, $selectedReplyTo
	) {
		$pid = (int) GeneralUtility::_GP('id');

		/** @var Template $template */
		$template = $this->templateRepository->findOneByTemplate(
			$selectedExtension, $selectedTemplate, $selectedLanguage, $pid
		);

		$templateAlreadyExists = TRUE;
		$objectManager = GeneralUtility::makeInstance(ObjectManager::class);
		if ($template === NULL) {
			$templateAlreadyExists = FALSE;
			$template = $objectManager->get(Template::class);
		}

		$template->setExtensionKey($selectedExtension);
		$template->setTemplateName($selectedTemplate);
		$template->setLanguage($selectedLanguage);
		$template->setContent($selectedContent);
		$template->setSubject($selectedSubject);
		$template->setFromName($selectedFromName);
		$template->setFromMail($selectedFromMail);
		$template->setCc($selectedCc);
		$template->setBcc($selectedBcc);
		$template->setReplyTo($selectedReplyTo);

		if ($templateAlreadyExists) {
			$this->templateRepository->update($template);
		} else {
			$this->templateRepository->add($template);
		}

		return $template;
	}

	/**
	 * send a test email to a given address
	 * redirect to index action
	 *
	 * @param array $parameters
	 * @throws \InvalidArgumentException
	 * @throws \TYPO3\CMS\Extbase\Persistence\Exception\IllegalObjectTypeException
	 * @throws \TYPO3\CMS\Extbase\Mvc\Exception\StopActionException
	 * @throws \TYPO3\CMS\Extbase\Mvc\Exception\UnsupportedRequestTypeException
	 * @throws \TYPO3\CMS\Extbase\Persistence\Exception\UnknownObjectException
	 */
	public function sendTestMailAction(array $parameters = []) {
		$objectManager = GeneralUtility::makeInstance(ObjectManager::class);
		/** @var \SGalinski\SgMail\Service\MailTemplateService $mailTemplateService */
		$mailTemplateService = $objectManager->get(MailTemplateService::class);
		$mailTemplateService->setLanguage($parameters['selectedLanguageLeft']);
		$mailTemplateService->setToAddresses($parameters['emailAddress']);
		$mailTemplateService->setFromAddress('noreply@example.org');
		$mailTemplateService->setTemplateName($parameters['selectedTemplate']);
		$mailTemplateService->setExtensionKey($parameters['selectedExtension']);
		$mailIsSend = $mailTemplateService->sendEmail(TRUE);

		if ($parameters['selectedLanguageRight'] !== $parameters['selectedLanguageLeft']) {
			/** @var \SGalinski\SgMail\Service\MailTemplateService $mailTemplateService */
			$mailTemplateService = $objectManager->get(MailTemplateService::class);
			$mailTemplateService->setLanguage($parameters['selectedLanguageRight']);
			$mailTemplateService->setToAddresses($parameters['emailAddress']);
			$mailTemplateService->setFromAddress('noreply@example.org');
			$mailTemplateService->setTemplateName($parameters['selectedTemplate']);
			$mailTemplateService->setExtensionKey($parameters['selectedExtension']);
			$mailIsSend = $mailTemplateService->sendEmail(TRUE);
		}

		if ($mailIsSend) {
			$message = LocalizationUtility::translate('backend.success_mail', 'sg_mail');
			$this->addFlashMessage($message, '', FlashMessage::OK);
		} else {
			$message = LocalizationUtility::translate('backend.failure_mail', 'sg_mail');
			$this->addFlashMessage($message, '', FlashMessage::ERROR);
		}

		$this->saveTemplate(
			$parameters['selectedExtension'], $parameters['selectedTemplate'], $parameters['selectedLanguageLeft'],
			$parameters['contentLeft'], $parameters['subjectLeft'],
			$parameters['fromNameLeft'], $parameters['fromMailLeft'], $parameters['ccLeft'], $parameters['bccLeft'],
			$parameters['replyToLeft']
		);
		if ($parameters['selectedLanguageleft'] !== $parameters['selectedLanguageRight']) {
			$this->saveTemplate(
				$parameters['selectedExtension'], $parameters['selectedTemplate'], $parameters['selectedLanguageRight'],
				$parameters['contentRight'], $parameters['subjectRight'],
				$parameters['fromNameRight'], $parameters['fromMailRight'], $parameters['ccRight'],
				$parameters['bccRight'], $parameters['replyToRight']
			);
		}

		$message = LocalizationUtility::translate('backend.success', 'sg_mail');
		$this->addFlashMessage($message, '', FlashMessage::OK);

		$arguments = $this->request->getArguments();
		$this->redirect('index', NULL, NULL, $arguments);
	}

	/**
	 * show a notice when no extension is registered
	 */
	public function emptyAction() {

	}

	/**
	 * reset template values to default state for a specific language (delete from db)
	 *
	 * @param string $template
	 * @param string $extensionKey
	 * @param string $language
	 * @throws \InvalidArgumentException
	 * @throws \TYPO3\CMS\Extbase\Mvc\Exception\StopActionException
	 * @throws \TYPO3\CMS\Extbase\Mvc\Exception\UnsupportedRequestTypeException
	 */
	public function resetAction($template, $extensionKey, $language = '') {
		$this->templateRepository->deleteTemplate($extensionKey, $template, $language);

		$message = LocalizationUtility::translate('backend.template_reset', 'sg_mail');
		$this->addFlashMessage($message, '', FlashMessage::OK);

		$arguments = $this->request->getArguments();
		$this->redirect('index', NULL, NULL, $arguments);
	}
}