<?php

namespace App\Controller;

use App\Entity\Choice;
use App\Entity\Comment;
use App\Entity\Owner;
use App\Entity\Poll;
use App\Entity\StackOfVotes;
use App\Entity\Vote;
use DateTime;
use DateTimeZone;
use FOS\RestBundle\Controller\Annotations\Delete;
use FOS\RestBundle\Controller\Annotations\Get;
use FOS\RestBundle\Controller\Annotations\Post;
use FOS\RestBundle\Controller\Annotations\Put;
use FOS\RestBundle\Controller\Annotations\Route;
use JMS\Serializer\SerializerBuilder;
use Swift_Message;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;

/**
 * Class DefaultController
 * @package App\Controller
 * @Route("/api/v1",name="api_")
 */
class DefaultController extends AbstractController {


	/**
	 * @Get(
	 *     path = "/my-polls",
	 *     name = "get_my_polls",
	 *     requirements = {"access_token"="\w+"}
	 * )
	 */
	public function showMyPollsAction() {
		return $this->json( [
			'message' => 'here are your polls',
			'data'    => new Poll(),
		] );
	}

	/**
	 * @Get(
	 *     path = "/polls",
	 *     name = "get_all_polls"
	 * )
	 */
	public function getAllPollsAction() {
		$repository = $this->getDoctrine()->getRepository( Poll::class );
		$data       = $repository->findall();


		return $this->json( [
			'message' => 'here are your polls',
			'data'    => $data,
		],
			200 );
	}

	/**
	 * @Get(
	 *     path = "/send-polls-to-user/{email}",
	 *     name = "send_user_polls"
	 * )
	 * @param $email
	 * @param \Swift_Mailer $mailer
	 *
	 * @return JsonResponse
	 */
	public function sendPollsToUser( $email, \Swift_Mailer $mailer ) {
		$repository = $this->getDoctrine()->getRepository( Owner::class );
		$founduser  = $repository->findOneBy( [ 'email' => $email ] );

		if ( $founduser ) {
			$polls        = $founduser->getPolls();
			$templateVars = [
				'owner' => $founduser,
				'polls' => $polls,
			];

			$message = ( new Swift_Message( 'Framadate - mes sondages' ) )
				->setFrom( 'ne-pas-repondre@framadate-api.cipherbliss.com' )
				->setTo( $founduser->getEmail() )
				->setBody(
					$this->renderView(
					// templates/hello/email.txt.twig
						'emails/owner-list.html.twig',
						$templateVars
					)
				);
			$mailer->send( $message );

			return $this->render( 'emails/owner-list.html.twig', $templateVars );
//			return $this->json( [
//				'message' => 'here are your polls, ' . $email,
//				'data'    => 'email was sent with a list of ' . count( $polls ) . ' polls',
//			],
//				200 );
		} else {
			return $this->json( [
				'message' => 'no user found for email ' . $email,
				'data'    => '',
			],
				400 );
		}
		// find user by email
		// send email
		// user not found case


	}

	/**
	 * @Post(
	 *     path = "/poll",
	 *     name = "new_poll",
	 *     requirements = {"creator"="\w+"}
	 * )
	 * @param Request $request
	 *
	 * @return JsonResponse
	 */
	public function newPollAction( Request $request ) {

		$data = $request->getContent();

		$serializer = SerializerBuilder::create()->build();
		$newpoll    = $serializer->deserialize( $data, 'App\Entity\Poll', 'json' );
		$newpoll
			->setAdminKey( $newpoll->generateAdminKey() )
			->setCreationDate( new DateTime() )
			->setModificationPolicy( 'nobody' );
		$timeStamp = time() + ( 3600 * 24 * 90 ); // 90 days by default
		$newpoll->setExpiracyDate( ( new DateTime() )->setTimestamp( $timeStamp ),
			new DateTimeZone( 'Europe/Paris' ) );
		$data       = json_decode( $data, true );
		$em         = $this->getDoctrine()->getRepository( Owner::class );
		$foundOwner = $em->findOneBy( [ 'email' => $data[ 'owner' ][ 'email' ] ] );


		$userWasFound = false;
		if ( ! $foundOwner ) {
			//create a new owner
			$owner = new Owner();

			$owner->setPseudo( $data[ 'owner' ][ 'pseudo' ] );
			$owner->setEmail( $data[ 'owner' ][ 'email' ] );
			$foundOwner = $owner;
		} else {
			$userWasFound = true;
		}
		// link the owner and the poll
		$newpoll->setOwner( $foundOwner );
		$foundOwner->addPoll( $newpoll );


		$em = $this->getDoctrine()->getManager();
		$em->persist( $newpoll );
		$em->persist( $foundOwner );

		// emails
		$newpoll->setMailOnComment( true );
		$newpoll->setMailOnVote( true );
		$newpoll->setHideResults( false );
		// possible answers
		$newpoll->setAllowedAnswers( [ 'yes' ] );
		if ( $data[ 'voteChoices' ] ) {
			switch ( $data[ 'voteChoices' ] ) {
				case "only_yes":
				default:

					break;
			}
		}
		// setup the password, converting the raw with md5 hash
		if ( $data[ 'password' ] ) {
			$newpoll->setPassword( $data[ 'password' ] );
		}
		// manage choices
		// text kind of answers, dates are below
		if ( $data[ 'pollType' ] == 'classic' ) {
			$choices = $data[ 'dateList' ];
			foreach ( $choices as $c ) {
				$newChoice = new Choice();
				$newChoice
					->setPoll( $newpoll )
//					->setUrl( $c[ 'url' ] )
					->setName( $c[ 'literal' ] );
				$em->persist( $newChoice );
				// TODO add also choices for each time range in a day
			}
		} elseif ( $data[ 'pollType' ] == 'dates' ) {
			if ( $data[ 'allowSeveralHours' ] == true ) {
				// different hours spans
				$choices = $data[ 'dateList' ];
			} else {

// all days have the same hour spans
			}


		}

		$em->persist( $newpoll );
		$em->flush();
		$precision = '';
		if ( $userWasFound ) {
			$precision = 'from an existing user : ' . $foundOwner->getEmail();
		}

		return $this->json( [
			'message'              => 'you created a poll ' . $precision,
			'data'                 => $newpoll,
			'password_protected'   => is_string( $newpoll->getPassword() ),
			'admin_key'            => $newpoll->getAdminKey(),
			'owner_modifier_token' => $foundOwner->getModifierToken(),

		],
			201 );

	}

	/**
	 * @Get(
	 *     path = "/poll/{id}/comments",
	 *     name = "get_poll_comment",
	 *     requirements = {"poll_id"="\d+"}
	 * )
	 */
	public
	function getPollCommentsAction(
		Poll $poll
	) {
		return $this->json( [
			'message' => 'here are your comments of the poll',
			'data'    => $poll->getComments(),
		],
			200 );
	}

	/**
	 * @Get(
	 *     path = "/poll/{id}",
	 *     name = "get_poll",
	 *     requirements = {"poll_id"="\d+"}
	 * )
	 */
	public
	function getPollConfig(
		Poll $poll,
		Request $request
	) {
		$pass = $poll->getPassword();
		$data = $request->getContent();
		$data = json_decode( $data, true );

		$comments = [];
		$stacks   = [];
		$choices  = [];
		foreach ( $poll->getComments() as $c ) {
			$comments[] = $c->display();
		}
		foreach ( $poll->getStacksOfVotes() as $c ) {
			$stacks[] = $c->display();
		}
		foreach ( $poll->getChoices() as $c ) {
			$choices[] = $c->display();
		}
		$returnedPoll = [
			'message'        => 'your poll config',
			'data'           => $poll,
			'stacks_count'   => count( $poll->getStacksOfVotes() ),
			'stacks'         => $stacks,
			'choices_count'  => count( $poll->getChoices() ),
			'choices'        => $choices,
			'comments'       => $comments,
			'comments_count' => count( $comments ),
		];
		/**
		 * password protected content
		 */
		if ( $pass ) {

			if ( $pass == md5( $data[ 'password_input' ] ) ) {
				return $this->json(
					$returnedPoll,
					200 );
			} else {
				return $this->json( [
					'message' => 'your password ' . $data[ 'password_input' ] . ' is wrong, and you should feel bad',
					'data'    => null,
				],
					403 );
			}
		} else {
			return $this->json(
				$returnedPoll
				,
				200 );
		}

	}

	/**
	 * Delete all expired polls and their children
	 * @Get(
	 *     path = "/clean-polls",
	 *     name = "clean_expired_polls",
	 * )
	 */
	public
	function cleanExpiredPolls() {
		$em     = $this->getDoctrine()->getManager();
		$emPoll = $this->getDoctrine()->getRepository( Poll::class );

		$queryFind   = $em->createQuery(
			'SELECT p
            FROM App\Entity\Poll p
            WHERE p.expiracyDate < CURRENT_DATE()'
		);
		$queryDelete = $em->createQuery(
			'DELETE
            FROM App\Entity\Poll p
            WHERE p.expiracyDate < CURRENT_DATE()'
		);

		$foundPolls = $queryFind->getResult();

		$em->flush();

		return $this->json( [
			'message' => 'clean routine has been done, here are the numbers of polls deleted: ' . count( $foundPolls ),
			'data'    => [
				'count' => count( $foundPolls ),
			],
		],
			200 );
	}

	/**
	 * @Put(
	 *     path = "/poll/{id}",
	 *     name = "update_poll",
	 *     requirements = {"content"="\w+",  "poll_id"="\d+"}
	 * )
	 */
	public
	function updatePollConfig(
		Poll $poll,
		Request $request
	) {

		// TODO check validity of request
		// update only if we have the admin key
		$em = $this->getDoctrine()->getManager();
		$em->persist( $poll );
		$em->flush();

		return $this->json( [
			'message' => 'you updated the poll ' . $poll->getTitle(),
		] );
	}

	/**
	 * add a comment on a poll
	 * @Post(
	 *     path = "/poll/{id}/comment",
	 *     name = "new_comment",
	 *     requirements = {"content"="\w+",  "poll_id"="\d+"}
	 * )
	 */
	public
	function newCommentAction(
		Poll $poll,
		Request $request
	) {
		if ( ! $poll ) {
			return $this->json( [ 'message' => 'poll not found' ], 404 );
		}
		$data = $request->getContent();

		$serializer = SerializerBuilder::create()->build();
		$comment    = $serializer->deserialize( $data, 'App\Entity\Comment', 'json' );

		$em = $this->getDoctrine()->getRepository( Owner::class );

		$data = json_decode( $data, true );

		$foundOwner = $em->findOneByEmail( $data[ 'email' ] );
		// manage existing or new Owner
		if ( ! $foundOwner ) {
			$foundOwner = new Owner();
			$foundOwner->setPseudo( $data[ 'owner' ][ 'email' ] )
			           ->setEmail( $data[ 'owner' ][ 'email' ] )
			           ->setModifierToken( uniqid() );
		}
		// anti flood
		$seconds_limit_lastpost = 5;
		$emComment              = $this->getDoctrine()->getRepository( Comment::class );
		$lastCommentOfOwner     = $emComment->findBy( [ 'owner' => $foundOwner ], [ 'id' => 'desc' ] );

		// TODO anti flood by session / IP

		if ( $lastCommentOfOwner ) {


			// check time of last comment
			$now         = new \DateTime();
			$now         = $now->format( 'Y-m-d H:i:s' );
			$date_first  = strtotime( $lastCommentOfOwner[ 0 ]->getCreatedAt()->format( 'Y-m-d H:i:s' ) );
			$date_second = strtotime( $now );

			if ( ( $date_second - $date_first ) < $seconds_limit_lastpost ) {
				return $this->json( [
					'message' => 'anti flood déclenché',
					'details' => 'votre deriner commentaire a été envoyé il y a moins de ' . $seconds_limit_lastpost . ' secondes',
				],
					403 );
			}

			// check similar text content
			if ( $lastCommentOfOwner[ 0 ]->getText() == $comment->getText() ) {
				return $this->json( [
					'message' => 'anti flood déclenché',
					'details' => 'votre deriner commentaire a exactement le même contenu que celui ci, il n\'a donc pas été créé',
				],
					403 );
			}
		}
		$comment->setOwner( $foundOwner )
		        ->setCreatedAt( new \DateTime() )
		        ->setPoll( $poll );
		$foundOwner->addComment( $comment );

		$em = $this->getDoctrine()->getManager();
		$em->persist( $foundOwner );
		$em->persist( $comment );
		$em->flush();

		return $this->json( [
			'message' => 'you created a comment',
			'data'    => [
				'your_comment' => $comment->display(),
			],
		],
			201 );
	}

	/**
	 * add a vote on a poll
	 * @Post(
	 *     path = "/poll/{id}/vote",
	 *     name = "new_vote_stack",
	 *     requirements = {"content"="\w+",  "poll_id"="\d+"}
	 * )
	 */
	public
	function newVoteStackAction(
		Poll $poll,
		Request $request
	) {
		if ( ! $poll ) {
			return $this->json( [ 'message' => 'poll not found' ], 404 );
		}

		$em   = $this->getDoctrine()->getManager();
		$data = $request->getContent();
		$data = json_decode( $data, true );


		$emOwner       = $this->getDoctrine()->getRepository( Owner::class );
		$emChoice      = $this->getDoctrine()->getRepository( Choice::class );
		$existingOwner = false;
		$foundOwner    = $emOwner->findOneByEmail( trim( $data[ 'email' ] ) );
		// manage existing or new Owner
		if ( ! $foundOwner ) {
			$foundOwner = new Owner();
			$foundOwner
				->setEmail( $data[ 'email' ] )
				->setPseudo( $data[ 'pseudo' ] );
		} else {
			$existingOwner = true;
		}
		// TODO anti flood
		$foundOwner
			->setModifierToken( $poll->generateAdminKey() );
		$stack = new StackOfVotes();
		$stack
			->setOwner( $foundOwner )
			->setPseudo( $data[ 'pseudo' ] )
			->setPoll( $poll );
		foreach ( $data[ 'votes' ] as $voteInfo ) {

			if ( ! isset( $voteInfo[ 'value' ] ) ) {
				continue;
			}
			$allowedValuesToAnswer = [ 'yes', 'maybe', 'no' ];

			if ( ! in_array( $voteInfo[ 'value' ], $allowedValuesToAnswer ) ) {
				return $this->json( [
					'message'    => 'answer ' . $voteInfo[ 'value' ] . ' is not allowed. should be yes, maybe, or no.',
					'vote_stack' => $stack,
				],
					404 );
			}
			$vote        = new Vote();
			$foundChoice = $emChoice->find( $voteInfo[ 'choice_id' ] );
			if ( ! $foundChoice ) {
				return $this->json( [
					'message'    => 'choice ' . $voteInfo[ 'choice_id' ] . ' was not found',
					'vote_stack' => $stack,
				],
					404 );
			}
			$vote->setPoll( $poll )
			     ->setChoice( $foundChoice )
			     ->setValue( $voteInfo[ 'value' ] );
			$vote->setPoll( $poll );
			$stack->addVote( $vote );
			$poll->addVote( $vote );
			$em->persist( $vote );
			$em->persist( $foundChoice );
		}

		// find poll from choices
		$poll->addStackOfVote( $stack );
		$em->persist( $stack );
		$em->persist( $poll );
		$em->flush();
		$precision = '';
		if ( $existingOwner ) {
			$precision = ' from an existing owner : ' . $foundOwner->getEmail();
		}

		return $this->json( [
			'message'              => 'you created a vote stack' . $precision,
			'poll'                 => $poll,
			'vote_stack'           => $stack->display(),
			'vote_count'           => count( $poll->getStacksOfVotes() ),
			'owner_modifier_token' => $foundOwner->getModifierToken(),
			'admin_key'            => $poll->getAdminKey(),
			'json_you_sent'        => $data,
		],
			201 );
	}


	/**
	 * @Delete(
	 *     path = "/poll/{id}",
	 *     name = "poll_delete",
	 *     requirements = {"accessToken"="\w+",  "poll_id"="\d+"}
	 * )
	 * @param Poll $poll
	 * @param $accessToken
	 *
	 * @return JsonResponse
	 */
	public
	function deletePollAction(
		Poll $poll,
		$accessToken
	) {

		if ( $accessToken == $poll->getAdminKey() ) {
			$em = $this->getDoctrine()->getManager();
			$em->remove( $poll );
			$em->flush();

			return $this->json( [
				'message' => 'boom! le sondage et ses objets assocités a été supprimé',
			] );
		} else {
			return $this->json( [
				'message' => 'le token d\'autorisation est invalide, vous ne pouvez pas modifier ce sondage',
			] );
		}

	}

	/**
	 * Erase all comments of a poll
	 * @Delete(
	 *     path = "/poll/{id}/comments",
	 *     name = "poll_comments_delete",
	 *     requirements = {"accessToken"="\w+",  "poll_id"="\d+"}
	 * )
	 *
	 * @param Poll $poll
	 * @param $accessToken
	 *
	 * @return JsonResponse
	 */
	public
	function deletePollCommentsAction(
		Poll $poll,
		$accessToken
	) {
		if ( $accessToken == $poll->getAdminKey() ) {
			$em     = $this->getDoctrine()->getManager();
			$length = count( $poll->getComments() );
			$em->remove( $poll->getComments() );
			$em->flush();

			return $this->json( [
				'message' => 'boom! les ' . $length . ' commentaires du sondage ont été supprimés',
			] );
		} else {
			return $this->json( [
				'message' => 'le token d\'autorisation est invalide, vous ne pouvez pas modifier ce sondage',
			] );
		}
	}

	/**
	 * @Delete(
	 *     path = "/poll/{id}/votes/{accessToken}",
	 *     name = "poll_votes_delete",
	 *     requirements = {"accessToken"="\w+",  "poll_id"="\d+"}
	 * )
	 * @return JsonResponse
	 */
	public
	function deletePollVotesAction(
		Poll $poll,
		$accessToken
	) {
		if ( $accessToken == $poll->getAdminKey() ) {
			$em     = $this->getDoctrine()->getManager();
			$length = count( $poll->getVotes() );
			$em->remove( $poll->getVotes() );
			$em->flush();

			return $this->json( [
				'message' => 'boom! les ' . $length . ' votes du sondage ont été supprimés',
			] );
		} else {
			return $this->json( [
				'message' => 'le token d\'autorisation est invalide, vous ne pouvez pas modifier ce sondage',
			] );
		}

	}

}