<?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\MailTemplateService;
use SGalinski\SgMail\Session\PhpSession;
use TYPO3\CMS\Core\Messaging\FlashMessage;
use TYPO3\CMS\Core\Utility\GeneralUtility;
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 {
	/**
	 * @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 string $selectedTemplate
	 * @param string $selectedExtension
	 * @param string $selectedLanguageLeft
	 * @param string $selectedLanguageRight
	 * @param string $selectedExtensionKey
	 * @param string $selectedTemplateKey
	 */
	public function indexAction(
		$selectedTemplate = NULL, $selectedExtension = NULL, $selectedLanguageLeft = NULL,
		$selectedLanguageRight = NULL, $selectedExtensionKey = NULL, $selectedTemplateKey = NULL
	) {
		if (!($this->session instanceof PhpSession)) {
			$this->session = $this->objectManager->get('SGalinski\SgMail\Session\PhpSession');
			$this->session->setSessionKey('sg_mail_controller_session');
		}

		$registerArray = MailTemplateService::getRegisterArray();
		$activatedLanguages = $this->languageRepository->findSelected();
		$languages = ['en'];
		foreach ($activatedLanguages as $language) {
			$languages[] = $language->getLocale();
		}

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

		// get last selected languages
		if ($selectedLanguageLeft === NULL) {
			$selectedLanguageLeft = $this->session->getDataByKey('selectedLanguageLeft');
			if ($selectedLanguageLeft === NULL) {
				$selectedLanguageLeft = $languages[0];
			}
		}

		if ($selectedLanguageRight === NULL) {
			$selectedLanguageRight = $this->session->getDataByKey('selectedLanguageRight');
			if ($selectedLanguageRight === NULL) {
				if (isset($languages[1])) {
					$selectedLanguageRight = $languages[1];
				} else {
					$selectedLanguageRight = $languages[0];
				}
			}
		}

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

		$selectedTemplateArray = $registerArray[$selectedExtension][$selectedTemplate];
		$this->session->setDataByKey('selectedLanguageLeft', $selectedLanguageLeft);
		$this->session->setDataByKey('selectedLanguageRight', $selectedLanguageRight);
		$templateLeft = $this->templateRepository->findOneByTemplate(
			$selectedExtension, $selectedTemplate, $selectedLanguageLeft
		);
		$templateRight = $this->templateRepository->findOneByTemplate(
			$selectedExtensionKey, $selectedTemplateKey, $selectedLanguageRight
		);

		if ($templateLeft !== NULL) {
			$this->view->assign('contentLeft', $templateLeft->getContent());
		} else {
			$defaultTemplatePath = $registerArray[$selectedExtension][$selectedTemplate]['templatePath'];
			$defaultTemplateFile = $defaultTemplatePath . $selectedLanguageLeft . '.' . 'template.html';
			if (file_exists($defaultTemplateFile)) {
				$this->view->assign('contentLeft', file_get_contents($defaultTemplateFile));
			}
		}

		if ($templateRight !== NULL) {
			$this->view->assign('contentRight', $templateRight->getContent());
		} else {
			$defaultTemplatePath = $registerArray[$selectedExtension][$selectedTemplate]['templatePath'];
			$defaultTemplateFile = $defaultTemplatePath . $selectedLanguageRight . '.' . 'template.html';
			if (file_exists($defaultTemplateFile)) {
				$this->view->assign('contentRight', file_get_contents($defaultTemplateFile));
			}
		}

		$this->view->assign(
			'subjectLeft', $templateLeft !== NULL ? $templateLeft->getSubject() :
			$registerArray[$selectedExtension][$selectedTemplate]['subjects'][$selectedLanguageLeft]
		);

		$this->view->assign(
			'subjectRight', $templateRight !== NULL ? $templateRight->getSubject() :
			$registerArray[$selectedExtension][$selectedTemplate]['subjects'][$selectedLanguageRight]
		);

		$this->view->assign('selectedTemplate', $selectedTemplateArray);
		$this->view->assign('selectedTemplateKey', $selectedTemplate);
		$this->view->assign('selectedExtensionKey', $selectedExtension);
		$this->view->assign('selectedLanguageLeft', $selectedLanguageLeft);
		$this->view->assign('selectedLanguageRight', $selectedLanguageRight);
	}

	/**
	 * Save content (left & right)
	 * if left & right is the same language, the right content will apply only if its another language
	 *
	 * @param string $contentLeft
	 * @param string $contentRight
	 * @param string $selectedExtension
	 * @param string $selectedTemplate
	 * @param string $selectedLanguageLeft
	 * @param string $selectedLanguageRight
	 * @param string $subjectLeft
	 * @param string $subjectRight
	 */
	public function saveAction(
		$contentLeft = NULL, $contentRight = NULL, $selectedExtension = NULL, $selectedTemplate = NULL,
		$selectedLanguageLeft = NULL, $selectedLanguageRight = NULL, $subjectLeft = NULL, $subjectRight = NULL
	) {
		$this->saveTemplate($selectedExtension, $selectedTemplate, $selectedLanguageLeft, $contentLeft, $subjectLeft);
		if ($selectedLanguageLeft !== $selectedLanguageRight) {
			$this->saveTemplate(
				$selectedExtension, $selectedTemplate, $selectedLanguageRight, $contentRight, $subjectRight
			);
		}

		$message = LocalizationUtility::translate('backend.success', 'sg_mail');
		$this->addFlashMessage($message, '', FlashMessage::OK);
		$arguments = $this->request->getArguments();
		$this->redirect('index', NULL, NULL, $arguments);
	}

	/**
	 * 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
	 * @return Template $template
	 */
	private function saveTemplate(
		$selectedExtension, $selectedTemplate, $selectedLanguage, $selectedContent, $selectedSubject
	) {
		/** @var Template $template */
		$template = $this->templateRepository->findOneByTemplate(
			$selectedExtension, $selectedTemplate, $selectedLanguage
		);

		$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);

		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 string $emailAddress
	 * @param string $selectedTemplateKey
	 * @param string $selectedExtensionKey
	 * @param string $selectedLanguageLeft
	 * @param string $selectedLanguageRight
	 */
	public function sendTestMailAction(
		$emailAddress, $selectedExtensionKey, $selectedTemplateKey, $selectedLanguageLeft, $selectedLanguageRight
	) {
		$objectManager = GeneralUtility::makeInstance(ObjectManager::class);
		/** @var \SGalinski\SgMail\Service\MailTemplateService $mailTemplateService */
		$mailTemplateService = $objectManager->get(MailTemplateService::class);
		$mailTemplateService->setLanguage($selectedLanguageLeft);
		$mailTemplateService->setToAddresses($emailAddress);
		$mailTemplateService->setFromAddress('noreply@example.org');
		$mailTemplateService->setTemplateName($selectedTemplateKey);
		$mailTemplateService->setExtensionKey($selectedExtensionKey);
		$mailIsSend = $mailTemplateService->sendEmail(TRUE);

		if ($selectedLanguageRight !== $selectedLanguageLeft) {
			/** @var \SGalinski\SgMail\Service\MailTemplateService $mailTemplateService */
			$mailTemplateService = $objectManager->get(MailTemplateService::class);
			$mailTemplateService->setLanguage($selectedLanguageRight);
			$mailTemplateService->setToAddresses($emailAddress);
			$mailTemplateService->setFromAddress('noreply@example.org');
			$mailTemplateService->setTemplateName($selectedTemplateKey);
			$mailTemplateService->setExtensionKey($selectedExtensionKey);
			$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);
		}

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