<?php

namespace Rapsys\AirBundle\Controller;

use Rapsys\AirBundle\Entity\Application;
use Rapsys\AirBundle\Entity\Location;
use Rapsys\AirBundle\Entity\Session;
use Rapsys\AirBundle\Entity\Slot;
use Rapsys\AirBundle\Entity\User;
use Symfony\Bridge\Twig\Mime\TemplatedEmail;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\Form\FormError;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
use Symfony\Component\Mailer\MailerInterface;
use Symfony\Component\Mime\Address;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Routing\RouterInterface;
use Symfony\Component\Translation\TranslatorInterface;
use Rapsys\UserBundle\Utils\Slugger;
use Symfony\Bundle\FrameworkBundle\Controller\ControllerTrait;
use Symfony\Component\DependencyInjection\ContainerAwareTrait;


class DefaultController {
	use ControllerTrait {
		//Rename render as _render
		render as protected _render;
	}

	///Config array
	protected $config;

	///Context array
	protected $context;

	///Router instance
	protected $router;

	///Translator instance
	protected $translator;

	/**
	 * @var ContainerInterface
	 */
	protected $container;

	/**
	 * Inject container and translator interface
	 *
	 * @param ContainerInterface $container The container instance
	 * @param RouterInterface $router The router instance
	 * @param TranslatorInterface $translator The translator instance
	 */
	public function __construct(ContainerInterface $container, RouterInterface $router, RequestStack $requestStack, TranslatorInterface $translator) {
		//Retrieve config
		$this->config = $container->getParameter($this->getAlias());

		//Set the container
		$this->container = $container;

		//Set the router
		$this->router = $router;

		//Set the translator
		$this->translator = $translator;

		//Set the context
		$this->context = [
			'copy' => [
				'by' => $translator->trans($this->config['copy']['by']),
				'link' => $this->config['copy']['link'],
				'long' => $translator->trans($this->config['copy']['long']),
				'short' => $translator->trans($this->config['copy']['short']),
				'title' => $this->config['copy']['title']
			],
			'site' => [
				'ico' => $this->config['site']['ico'],
				'logo' => $this->config['site']['logo'],
				'png' => $this->config['site']['png'],
				'svg' => $this->config['site']['svg'],
				'title' => $translator->trans($this->config['site']['title']),
				'url' => $router->generate($this->config['site']['url']),
			],
			'canonical' => null,
			'alternates' => [],
			'forms' => []
		];

		//Get current locale
		#$currentLocale = $router->getContext()->getParameters()['_locale'];
		$currentLocale = $requestStack->getCurrentRequest()->getLocale();

		//Set translator locale
		//XXX: allow LocaleSubscriber on the fly locale change for first page
		$this->translator->setLocale($currentLocale);

		//Iterate on locales excluding current one
		foreach($this->config['locales'] as $locale) {
			//Set titles
			$titles = [];

			//Iterate on other locales
			foreach(array_diff($this->config['locales'], [$locale]) as $other) {
				$titles[$other] = $translator->trans($this->config['languages'][$locale], [], null, $other);
			}

			//Get context path
			$path = $router->getContext()->getPathInfo();

			//Retrieve route matching path
			$route = $router->match($path);

			//Get route name
			$name = $route['_route'];

			//Unset route name
			unset($route['_route']);

			//With current locale
			if ($locale == $currentLocale) {
				//Set locale locales context
				$this->context['canonical'] = $router->generate($name, ['_locale' => $locale]+$route, UrlGeneratorInterface::ABSOLUTE_URL);
			} else {
				//Set locale locales context
				$this->context['alternates'][] = [
					'lang' => $locale,
					'absolute' => $router->generate($name, ['_locale' => $locale]+$route, UrlGeneratorInterface::ABSOLUTE_URL),
					'relative' => $router->generate($name, ['_locale' => $locale]+$route),
					'title' => implode('/', $titles),
					'translated' => $translator->trans($this->config['languages'][$locale], [], null, $locale)
				];
			}
		}
	}

	/**
	 * The contact page
	 *
	 * @desc Send a contact mail to configured contact
	 *
	 * @param Request $request The request instance
	 * @param MailerInterface $mailer The mailer instance
	 *
	 * @return Response The rendered view or redirection
	 */
	public function contact(Request $request, MailerInterface $mailer): Response {
		//Set section
		$section = $this->translator->trans('Contact');

		//Set description
		$this->context['description'] = $this->translator->trans('Contact Libre Air');

		//Set keywords
		$this->context['keywords'] = [
			$this->translator->trans('contact'),
			$this->translator->trans('Libre Air'),
			$this->translator->trans('outdoor'),
			$this->translator->trans('Argentine Tango'),
			$this->translator->trans('calendar')
		];

		//Set title
		$title = $this->translator->trans($this->config['site']['title']).' - '.$section;

		//Create the form according to the FormType created previously.
		//And give the proper parameters
		$form = $this->createForm('Rapsys\AirBundle\Form\ContactType', null, [
			'action' => $this->generateUrl('rapsys_air_contact'),
			'method' => 'POST'
		]);

		if ($request->isMethod('POST')) {
			// Refill the fields in case the form is not valid.
			$form->handleRequest($request);

			if ($form->isValid()) {
				//Get data
				$data = $form->getData();

				//Create message
				$message = (new TemplatedEmail())
					//Set sender
					->from(new Address($data['mail'], $data['name']))
					//Set recipient
					//XXX: remove the debug set in vendor/symfony/mime/Address.php +46
					->to(new Address($this->config['contact']['mail'], $this->config['contact']['name']))
					//Set subject
					->subject($data['subject'])

					//Set path to twig templates
					->htmlTemplate('@RapsysAir/mail/contact.html.twig')
					->textTemplate('@RapsysAir/mail/contact.text.twig')

					//Set context
					->context(
						[
							'subject' => $data['subject'],
							'message' => strip_tags($data['message']),
						]+$this->context
					);

				//Try sending message
				//XXX: mail delivery may silently fail
				try {
					//Send message
					$mailer->send($message);

					//Redirect on the same route with sent=1 to cleanup form
					return $this->redirectToRoute($request->get('_route'), ['sent' => 1]+$request->get('_route_params'));
				//Catch obvious transport exception
				} catch(TransportExceptionInterface $e) {
					if ($message = $e->getMessage()) {
						//Add error message mail unreachable
						$form->get('mail')->addError(new FormError($this->translator->trans('Unable to contact: %mail%: %message%', ['%mail%' => $this->config['contact']['mail'], '%message%' => $this->translator->trans($message)])));
					} else {
						//Add error message mail unreachable
						$form->get('mail')->addError(new FormError($this->translator->trans('Unable to contact: %mail%', ['%mail%' => $this->config['contact']['mail']])));
					}
				}
			}
		}

		//Render template
		return $this->render('@RapsysAir/form/contact.html.twig', ['title' => $title, 'section' => $section, 'form' => $form->createView(), 'sent' => $request->query->get('sent', 0)]+$this->context);
	}

	/**
	 * The index page
	 *
	 * @desc Display all granted sessions with an application or login form
	 *
	 * @param Request $request The request instance
	 *
	 * @return Response The rendered view
	 */
	public function index(Request $request): Response {
		//Fetch doctrine
		$doctrine = $this->getDoctrine();

		//Set section
		$section = $this->translator->trans('Argentine Tango in Paris');

		//Set description
		$this->context['description'] = $this->translator->trans('Outdoor Argentine Tango session calendar in Paris');

		//Set keywords
		$this->context['keywords'] = [
			$this->translator->trans('Argentine Tango'),
			$this->translator->trans('Paris'),
			$this->translator->trans('outdoor'),
			$this->translator->trans('calendar'),
			$this->translator->trans('Libre Air')
		];

		//Set title
		$title = $this->translator->trans($this->config['site']['title']).' - '.$section;

		//Compute period
		$period = new \DatePeriod(
			//Start from first monday of week
			new \DateTime('Monday this week'),
			//Iterate on each day
			new \DateInterval('P1D'),
			//End with next sunday and 4 weeks
			new \DateTime(
				$this->isGranted('IS_AUTHENTICATED_REMEMBERED')?'Monday this week + 4 week':'Monday this week + 2 week'
			)
		);

		//Fetch calendar
		$calendar = $doctrine->getRepository(Session::class)->fetchCalendarByDatePeriod($this->translator, $period, null, $request->get('session'), !$this->isGranted('IS_AUTHENTICATED_REMEMBERED'));

		//Fetch locations
		//XXX: we want to display all active locations anyway
		$locations = $doctrine->getRepository(Location::class)->findTranslatedSortedByPeriod($this->translator, $period);

		//Render the view
		return $this->render('@RapsysAir/default/index.html.twig', ['title' => $title, 'section' => $section, 'calendar' => $calendar, 'locations' => $locations]+$this->context);

		//Set Cache-Control must-revalidate directive
		#$response->setPublic(true);
		#$response->setMaxAge(300);
		#$response->mustRevalidate();
		##$response->setCache(['public' => true, 'max_age' => 300]);

		//Return the response
		#return $response;
	}

	/**
	 * The organizer regulation page
	 *
	 * @desc Display the organizer regulation policy
	 *
	 * @return Response The rendered view
	 */
	public function organizerRegulation(): Response {
		//Set section
		$section = $this->translator->trans('Organizer regulation');

		//Set description
		$this->context['description'] = $this->translator->trans('Libre Air organizer regulation');

		//Set keywords
		$this->context['keywords'] = [
			$this->translator->trans('organizer regulation'),
			$this->translator->trans('Libre Air')
		];

		//Set title
		$title = $this->translator->trans($this->config['site']['title']).' - '.$section;

		//Render template
		return $this->render('@RapsysAir/default/organizer_regulation.html.twig', ['title' => $title, 'section' => $section]+$this->context);
	}

	/**
	 * The terms of service page
	 *
	 * @desc Display the terms of service policy
	 *
	 * @return Response The rendered view
	 */
	public function termsOfService(): Response {
		//Set section
		$section = $this->translator->trans('Terms of service');

		//Set description
		$this->context['description'] = $this->translator->trans('Libre Air terms of service');

		//Set keywords
		$this->context['keywords'] = [
			$this->translator->trans('terms of service'),
			$this->translator->trans('Libre Air')
		];

		//Set title
		$title = $this->translator->trans($this->config['site']['title']).' - '.$section;

		//Render template
		return $this->render('@RapsysAir/default/terms_of_service.html.twig', ['title' => $title, 'section' => $section]+$this->context);
	}

	/**
	 * The frequently asked questions page
	 *
	 * @desc Display the frequently asked questions
	 *
	 * @return Response The rendered view
	 */
	public function frequentlyAskedQuestions(): Response {
		//Set section
		$section = $this->translator->trans('Frequently asked questions');

		//Set description
		$this->context['description'] = $this->translator->trans('Libre Air frequently asked questions');

		//Set keywords
		$this->context['keywords'] = [
			$this->translator->trans('frequently asked questions'),
			$this->translator->trans('faq'),
			$this->translator->trans('Libre Air')
		];

		//Set title
		$title = $this->translator->trans($this->config['site']['title']).' - '.$section;

		//Render template
		return $this->render('@RapsysAir/default/frequently_asked_questions.html.twig', ['title' => $title, 'section' => $section]+$this->context);
	}

	/**
	 * Return the bundle alias
	 *
	 * {@inheritdoc}
	 */
	public function getAlias(): string {
		return 'rapsys_air';
	}

	/**
	 * Renders a view
	 *
	 * {@inheritdoc}
	 */
	protected function render(string $view, array $parameters = [], Response $response = null): Response {
		//Create application form for role_guest
		if ($this->isGranted('ROLE_GUEST')) {
			//Without application form
			if (empty($parameters['forms']['application'])) {
				//Fetch doctrine
				$doctrine = $this->getDoctrine();

				//Create ApplicationType form
				$application = $this->createForm('Rapsys\AirBundle\Form\ApplicationType', null, [
					//Set the action
					'action' => $this->generateUrl('rapsys_air_application_add'),
					//Set the form attribute
					'attr' => [ 'class' => 'col' ],
					//Set admin
					'admin' => $this->isGranted('ROLE_ADMIN'),
					//Set default user to current
					'user' => $this->getUser()->getId(),
					//Set default slot to evening
					//XXX: default to Evening (3)
					'slot' => $doctrine->getRepository(Slot::class)->findOneById(3)
				]);

				//Add form to context
				$parameters['forms']['application'] = $application->createView();
			}
		//Create login form for anonymous
		} elseif (!$this->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
			//Create ApplicationType form
			$login = $this->createForm('Rapsys\UserBundle\Form\LoginType', null, [
				//Set the action
				'action' => $this->generateUrl('rapsys_user_login'),
				//Set the form attribute
				'attr' => [ 'class' => 'col' ]
			]);

			//Add form to context
			$parameters['forms']['login'] = $login->createView();
		}

		//Call parent method
		return $this->_render($view, $parameters, $response);
	}
}