<?php declare(strict_types=1);
/*
 * This file is part of the SplendidBear Websites' projects.
 *
 * Copyright (c) 2026 @ www.splendidbear.org
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace App\Controller;

use App\Entity\PlayedGame;
use App\Entity\User;
use App\Repository\PlayedGameRepository;
use App\Service\BattleCardGenerator;
use App\Service\WebAuthnService;
use DateTime;
use Doctrine\ORM\EntityManagerInterface;
use League\Flysystem\FilesystemException;
use League\Flysystem\FilesystemOperator;
use Liip\ImagineBundle\Imagine\Cache\CacheManager;
use Psr\Log\LoggerInterface;
use RuntimeException;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
use Symfony\Component\HttpFoundation\BinaryFileResponse;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\ResponseHeaderBag;
use Symfony\Component\HttpKernel\Attribute\AsController;
use Symfony\Component\Routing\Attribute\Route;
use Symfony\Component\Uid\Uuid;
use Throwable;
use function count;

/**
 * Class ProfileController
 *
 * @package  App\Controller
 * @author   Lang <https://www.splendidbear.org>
 * @category Class
 * @license  https://www.gnu.org/licenses/lgpl-3.0.en.html GNU Lesser General Public License
 * @link     www.splendidbear.org
 * @since    2026. 04. 11.
 */
#[AsController]
class ProfileController extends AbstractController
{
    public function __construct(
        private readonly PlayedGameRepository $repo,
        private readonly WebAuthnService      $webAuthnService,
        private readonly LoggerInterface      $logger,
    ) {
    }

    #[Route('/profile', name: 'MineSeekerBundle_profile')]
    public function index(CacheManager $cacheManager): Response
    {
        /** @var User $user */
        $user = $this->getUser();
        $this->denyAccessUnlessGranted('IS_AUTHENTICATED_REMEMBERED');

        $total = $this->repo->countFinishedForUser($user);
        $wins = $this->repo->countWinsForUser($user);
        $losses = $this->repo->countLossesForUser($user);
        $draws = $this->repo->countDrawsForUser($user);

        /** Build monthly buckets for the last 6 months */
        $monthlyData = [];
        for ($i = 5; $i >= 0; $i--) {
            $dt = new DateTime("first day of -$i months midnight");
            $key = $dt->format('Y-m');
            $monthlyData[$key] = ['label' => $dt->format('M'), 'wins' => 0, 'losses' => 0, 'draws' => 0];
        }

        $since = new DateTime('first day of -5 months midnight');
        $recentGames = $this->repo->findFinishedForUserSince($user, $since);
        $userId = $user->getId();

        foreach ($recentGames as $game) {
            if (!$game->getUpdated()) {
                continue;
            }

            $month = $game->getUpdated()->format('Y-m');
            if (!isset($monthlyData[$month])) {
                continue;
            }

            $isRed = $game->getRed()?->getId() === $userId;
            $myPts = $isRed ? $game->getRedPoints() : $game->getBluePoints();
            $oppPts = $isRed ? $game->getBluePoints() : $game->getRedPoints();
            $resign = $game->getResign();
            $myColor = $isRed ? 'red' : 'blue';
            $oppColor = $isRed ? 'blue' : 'red';

            $result = 'draws';
            if ($resign === $myColor) {
                $result = 'losses';
            } elseif ($resign === $oppColor) {
                $result = 'wins';
            } elseif ($myPts !== null && $oppPts !== null) {
                if ($myPts > $oppPts) $result = 'wins';
                elseif ($myPts < $oppPts) $result = 'losses';
            }

            $monthlyData[$month][$result]++;
        }

        $months = array_column(array_values($monthlyData), 'label');

        return $this->render('Security/profile.html.twig', [
            'stats'     => [
                'total'     => $total,
                'wins'      => $wins,
                'losses'    => $losses,
                'draws'     => $draws,
                'bombs'     => $this->repo->countBombsForUser($user),
                'winRate'   => $total > 0 ? (int)round($wins / $total * 100) : 0,
                'avgScore'  => $this->repo->findAvgScoreForUser($user),
                'bestScore' => $this->repo->findBestScoreForUser($user),
            ],
            'recent'    => ($recent = $this->repo->findRecentFinishedForUser($user)),
            'gamesData' => array_map(function (PlayedGame $game) use ($userId, $cacheManager): array {
                $isRed = $game->getRed()?->getId() === $userId;
                $resign = $game->getResign();
                $myColor = $isRed ? 'red' : 'blue';
                $oppColor = $isRed ? 'blue' : 'red';
                $myPts = $isRed ? $game->getRedPoints() : $game->getBluePoints();
                $oppPts = $isRed ? $game->getBluePoints() : $game->getRedPoints();
                $result = 'draw';

                if ($resign === $myColor) $result = 'loss';
                elseif ($resign === $oppColor) $result = 'win';
                elseif ($myPts !== null && $oppPts !== null) {
                    if ($myPts > $oppPts) $result = 'win';
                    elseif ($myPts < $oppPts) $result = 'loss';
                }

                $redAvatarPath = $game->getRed()?->getAvatarPath();
                $blueAvatarPath = $game->getBlue()?->getAvatarPath();

                return [
                    'id'               => $game->getId(),
                    'uuid'             => $game->getUuid()?->toRfc4122(),
                    'redName'          =>
                        $game->getRed()?->getUsername() ?? $game->getRedAnon()?->getUserName() ?? 'Guest',
                    'blueName'         =>
                        $game->getBlue()?->getUsername() ?? $game->getBlueAnon()?->getUserName() ?? 'Guest',
                    'redAvatar'        => $redAvatarPath ? $cacheManager->generateUrl($redAvatarPath, 'avatar_thumb') : null,
                    'blueAvatar'       => $blueAvatarPath ? $cacheManager->generateUrl($blueAvatarPath, 'avatar_thumb') : null,
                    'redPoints'        => $game->getRedPoints(),
                    'bluePoints'       => $game->getBluePoints(),
                    'redExplodedBomb'  => $game->getRedExplodedBomb(),
                    'blueExplodedBomb' => $game->getBlueExplodedBomb(),
                    'resign'           => $resign,
                    'created'          => $game->getCreated()?->format('Y-m-d H:i'),
                    'date'             => $game->getUpdated()?->format('Y-m-d H:i'),
                    'isRed'            => $isRed,
                    'result'           => $result,
                    'myPoints'         => $myPts,
                    'oppPoints'        => $oppPts,
                    'redBonusPoints'   => $game->getRedBonusPoints() ?? 0,
                    'blueBonusPoints'  => $game->getBlueBonusPoints() ?? 0,
                    'redBonusStats'    => $game->getRedBonusStats() ?? [],
                    'blueBonusStats'   => $game->getBlueBonusStats() ?? [],
                ];
            }, $recent),
            'chartData' => [
                'months'    => $months,
                'wins'      => array_column(array_values($monthlyData), 'wins'),
                'losses'    => array_column(array_values($monthlyData), 'losses'),
                'draws'     => array_column(array_values($monthlyData), 'draws'),
                'pieWins'   => $wins,
                'pieLosses' => $losses,
                'pieDraws'  => $draws,
            ],
        ]);
    }

    #[Route(
        '/battle/{uuid}',
        name: 'MineSeekerBundle_battle_share',
        requirements: ['uuid' => '[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}'],
        methods: ['GET'],
    )]
    public function battleShare(Uuid $uuid): Response
    {
        $game = $this->repo->findOneBy(['uuid' => $uuid]);
        if (!$game) {
            throw $this->createNotFoundException('Battle not found.');
        }

        $redName = $game->getRed()?->getUsername() ?? ($game->getRedAnon() !== null ? 'Anonymous' : 'Guest');
        $blueName = $game->getBlue()?->getUsername() ?? ($game->getBlueAnon() !== null ? 'Anonymous' : 'Guest');
        $redPts = $game->getRedPoints();
        $bluePts = $game->getBluePoints();
        $resign = $game->getResign();
        $redAvatar = $game->getRed()?->getAvatarPath();
        $blueAvatar = $game->getBlue()?->getAvatarPath();
        $redBonusPoints = $game->getRedBonusPoints() ?? 0;
        $blueBonusPoints = $game->getBlueBonusPoints() ?? 0;
        $redBonusStats = $game->getRedBonusStats() ?? [];
        $blueBonusStats = $game->getBlueBonusStats() ?? [];

        if ($resign === 'red') {
            $summary = "$redName resigned — $blueName wins";
        } elseif ($resign === 'blue') {
            $summary = "$blueName resigned — $redName wins";
        } elseif ($redPts !== null && $bluePts !== null) {
            if ($redPts > $bluePts) {
                $summary = "$redName defeated $blueName ($redPts – $bluePts)";
            } elseif ($bluePts > $redPts) {
                $summary = "$blueName defeated $redName ($bluePts – $redPts)";
            } else {
                $summary = "$redName and $blueName drew ($redPts – $bluePts)";
            }
        } else {
            $summary = "$redName vs $blueName";
        }

        return $this->render('Game/battle_share.html.twig', [
            'game'              => $game,
            'redName'           => $redName,
            'blueName'          => $blueName,
            'redPts'            => $redPts,
            'bluePts'           => $bluePts,
            'resign'            => $resign,
            'redAvatar'         => $redAvatar,
            'blueAvatar'        => $blueAvatar,
            'redBonusPoints'    => $redBonusPoints,
            'blueBonusPoints'   => $blueBonusPoints,
            'redBonusStats'     => $redBonusStats,
            'blueBonusStats'    => $blueBonusStats,
            'ogTitle'           => "MineSeeker · $summary",
            'ogDesc'            => "Watch the battle replay: $summary — played on MineSeeker, the multiplayer minesweeper.",
        ]);
    }

    #[Route(
        '/og/battle/{uuid}.png',
        name: 'MineSeekerBundle_og_battle',
        requirements: ['uuid' => '[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}'],
        methods: ['GET'],
    )]
    public function battleOgImage(Uuid $uuid, BattleCardGenerator $generator): BinaryFileResponse
    {
        $game = $this->repo->findOneBy(['uuid' => $uuid]);
        if (!$game) {
            throw $this->createNotFoundException();
        }

        $path = $generator->generate($game);
        $response = new BinaryFileResponse($path);
        $response->headers->set('Content-Type', 'image/png');
        $response->setContentDisposition(ResponseHeaderBag::DISPOSITION_INLINE);
        $response->setMaxAge(86400 * 30);
        $response->setPublic();

        return $response;
    }

    #[Route('/profile/avatar', name: 'MineSeekerBundle_profile_avatar', methods: ['POST'])]
    public function uploadAvatar(
        Request                                                             $request,
        EntityManagerInterface                                              $em,
        CacheManager                                                        $cacheManager,
        #[Autowire(service: 'mineseeker.media.storage')] FilesystemOperator $mediaStorage,
    ): JsonResponse {
        $this->denyAccessUnlessGranted('IS_AUTHENTICATED_REMEMBERED');

        /** @var User $user */
        $user = $this->getUser();

        $file = $request->files->get('avatar');
        if (!$file instanceof UploadedFile) {
            return $this->json(['error' => 'No file uploaded.'], 400);
        }

        if ($file->getSize() > 2 * 1024 * 1024) {
            return $this->json(['error' => 'File is too large. Maximum 2 MB.'], 400);
        }

        $allowed = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'];
        if (!in_array($file->getMimeType(), $allowed, true)) {
            return $this->json(['error' => 'Invalid type. Allowed: JPEG, PNG, GIF, WEBP.'], 400);
        }

        $ext = $file->guessExtension() ?? 'jpg';
        $newPath = sprintf('avatar/%s.%s', Uuid::v4()->toRfc4122(), $ext);
        $oldPath = $user->getAvatarPath();

        /** Remove old file and any cached thumbnails */
        if ($oldPath) {
            try {
                $mediaStorage->delete($oldPath);
            } catch (Throwable) {
                $this->logger->error('Unable to delete old avatar: ' . $oldPath);
            }
            $cacheManager->remove($oldPath, 'avatar_thumb');
        }

        /** Upload original to MinIO media/avatar/ */
        $stream = fopen($file->getPathname(), 'rb');
        try {
            $mediaStorage->writeStream($newPath, $stream);
        } catch (FilesystemException $e) {
            $this->logger->error('Unable to write new avatar: ' . $e->getMessage());
            throw new RuntimeException('Unable to write new avatar: ' . $e->getMessage());
        }
        fclose($stream);

        $user->setAvatarPath($newPath);
        $em->flush();

        return $this->json([
            'thumbUrl' => $cacheManager->generateUrl($newPath, 'avatar_thumb'),
        ]);
    }

    #[Route('/profile/security', name: 'MineSeekerBundle_profile_security')]
    public function security(): Response
    {
        /** @var User $user */
        $user = $this->getUser();
        $this->denyAccessUnlessGranted('IS_AUTHENTICATED_REMEMBERED');

        $credentials = $this->webAuthnService->getCredentialsForUser($user);
        $credentialsData = array_map(fn($cred) => [
            'id'                    => $cred->getId(),
            'credentialName'        => $cred->getCredentialName(),
            'createdAt'             => $cred->getCreatedAt()?->format('Y-m-d H:i:s'),
            'lastUsedAt'            => $cred->getLastUsedAt()?->format('Y-m-d H:i:s'),
            'isBackupEligible'      => $cred->isBackupEligible(),
            'isBackupAuthenticated' => $cred->isBackupAuthenticated(),
        ], $credentials);

        return $this->render('Security/profile_security.html.twig', [
            'credentials'      => $credentialsData,
            'isTotpEnabled'    => $user->isTotpAuthenticationEnabled(),
            'backupCodesCount' => count($user->getBackupCodes()),
        ]);
    }
}