<?php

namespace App\Controllers;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use App\Models\Game;
use App\Services\SteamGridDbService;
use Slim\Views\Twig;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\GuzzleException;

class GameController extends Controller
{
    private \PDO $pdo;
    private SteamGridDbService $steamGridDb;

    public function __construct(\PDO $pdo, Twig $view)
    {
        parent::__construct($view);
        $this->pdo = $pdo;
        $this->steamGridDb = new SteamGridDbService();
    }

    /**
     * Search for games on SteamGridDB
     */
    public function searchSteamGridDb(Request $request, Response $response, array $args): Response
    {
        $query = $request->getQueryParams()['q'] ?? '';
        $results = [];
        
        if (!empty($query)) {
            $results = $this->steamGridDb->searchGames($query);
        }

        return $this->json($response, [
            'success' => true,
            'data' => $results
        ]);
    }

    /**
     * Get media from SteamGridDB
     */
    public function getSteamGridDbMedia(Request $request, Response $response, array $args): Response
    {
        $gameId = $args['gameId'] ?? null;
        $type = $args['type'] ?? 'grids';
        $media = [];

        if ($gameId) {
            switch ($type) {
                case 'grids':
                    $media = $this->steamGridDb->getGrids($gameId, [
                        'styles' => ['alternate', 'blurred', 'white_logo', 'material', 'no_logo'],
                        'dimensions' => ['600x900', '920x430', '460x215', '920x430']
                    ]);
                    break;
                case 'heroes':
                    $media = $this->steamGridDb->getHeroes($gameId, [
                        'dimensions' => ['1920x620', '3840x1240']
                    ]);
                    break;
                case 'icons':
                    $media = $this->steamGridDb->getIcons($gameId, [
                        'dimensions' => ['32x32', '64x64', '128x128', '256x256', '512x512']
                    ]);
                    break;
                case 'logos':
                    $media = $this->steamGridDb->getLogos($gameId);
                    break;
            }
        }

        return $this->json($response, [
            'success' => true,
            'data' => $media
        ]);
    }

    /**
     * Download and set media from SteamGridDB
     */
    public function setSteamGridDbMedia(Request $request, Response $response, array $args): Response
    {
        $gameId = $args['id'] ?? null;
        $data = $request->getParsedBody();
        $type = $data['type'] ?? '';
        $url = $data['url'] ?? '';
        $field = '';

        if (!$gameId || !$type || !$url) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Missing required parameters'
            ], 400);
        }

        // Map media type to database field
        switch ($type) {
            case 'grid':
                $field = 'image_url';
                break;
            case 'hero':
                $field = 'banner_url';
                break;
            case 'icon':
                $field = 'icon';
                break;
            case 'logo':
                $field = 'logo_url';
                break;
            default:
                return $this->json($response, [
                    'success' => false,
                    'message' => 'Invalid media type'
                ], 400);
        }

        // Download the media file
        $tempFile = $this->steamGridDb->downloadMedia($url);
        if (!$tempFile) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Failed to download media'
            ], 500);
        }

        // Move the file to the appropriate location
        $uploadDir = __DIR__ . '/../../public/uploads/games/' . $gameId;
        if (!is_dir($uploadDir)) {
            mkdir($uploadDir, 0755, true);
        }

        $filename = $type . '_' . uniqid() . '.' . pathinfo($url, PATHINFO_EXTENSION);
        $filepath = $uploadDir . '/' . $filename;
        $publicPath = '/uploads/games/' . $gameId . '/' . $filename;

        if (!rename($tempFile, $filepath)) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Failed to save media file'
            ], 500);
        }

        // Update the game record
        $game = Game::find($this->pdo, $gameId);
        if (!$game) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Game not found'
            ], 404);
        }

        $game->{$field} = $publicPath;
        $game->save($this->pdo);

        return $this->json($response, [
            'success' => true,
            'data' => [
                'url' => $publicPath,
                'field' => $field
            ]
        ]);
    }

    public function index(Request $request, Response $response, $args)
    {
        $queryParams = $request->getQueryParams();

        // Get pagination parameters
        $page = max(1, (int)($queryParams['page'] ?? 1));
        $perPage = max(12, min(100, (int)($queryParams['per_page'] ?? 24)));

        // Get search parameters
        $search = trim($queryParams['search'] ?? '');

        // Get filter parameters
        $genres = $queryParams['genres'] ?? [];
        if (!is_array($genres)) {
            $genres = [$genres];
        }
        $genres = array_filter($genres);

        $platforms = $queryParams['platforms'] ?? [];
        if (!is_array($platforms)) {
            $platforms = [$platforms];
        }
        $platforms = array_filter($platforms);

        $features = $queryParams['features'] ?? [];
        if (!is_array($features)) {
            $features = [$features];
        }
        $features = array_filter($features);

        $playtimeFilter = $queryParams['playtime'] ?? '';

        // Get view mode
        $viewMode = $queryParams['view'] ?? 'grid'; // grid, list, covers

        // Get sort parameter
        $sort = $queryParams['sort'] ?? 'title_asc';

        // Get games with pagination, filters, and sorting
        $games = Game::getGroupedGamesWithPagination($this->pdo, $page, $perPage, $search, $genres, $platforms, $features, $playtimeFilter, $sort);

        // Get total count for pagination
        $totalCount = Game::getTotalCount($this->pdo, $search, $genres, $platforms, $features, $playtimeFilter);

        // Get available filter options
        $availableGenres = Game::getAvailableGenres($this->pdo);
        $availablePlatforms = Game::getAvailablePlatforms($this->pdo);
        $availableFeatures = Game::getAvailableFeatures($this->pdo);

        // Calculate pagination info
        $totalPages = ceil($totalCount / $perPage);
        $hasNextPage = $page < $totalPages;
        $hasPrevPage = $page > 1;

        return $this->view->render($response, 'games/index.twig', [
            'title' => 'Games',
            'games' => $games,
            'pagination' => [
                'current_page' => $page,
                'per_page' => $perPage,
                'total_pages' => $totalPages,
                'total_items' => $totalCount,
                'has_next' => $hasNextPage,
                'has_prev' => $hasPrevPage,
                'next_page' => $page + 1,
                'prev_page' => $page - 1
            ],
            'search' => $search,
            'view_mode' => $viewMode,
            'view_modes' => ['grid', 'list', 'covers'],
            'filters' => [
                'genres' => $genres,
                'platforms' => $platforms,
                'features' => $features,
                'playtime' => $playtimeFilter
            ],
            'available_filters' => [
                'genres' => $availableGenres,
                'platforms' => $availablePlatforms,
                'features' => $availableFeatures
            ],
            'sort' => $sort,
            'sort_options' => [
                'title_asc' => 'Title (A-Z)',
                'title_desc' => 'Title (Z-A)',
                'year_asc' => 'Release Year (Oldest First)',
                'year_desc' => 'Release Year (Newest First)',
                'playtime_desc' => 'Most Played',
                'completion_desc' => 'Highest Completion',
                'added_desc' => 'Recently Added',
                'last_played_desc' => 'Last Played',
                'platforms_desc' => 'Most Platforms',
                'platforms_asc' => 'Fewest Platforms'
            ]
        ]);
    }

    public function show(Request $request, Response $response, $args)
    {
        $gameKey = $args['game_key'];

        // Find the main game entry (could be any platform version)
        $stmt = $this->pdo->prepare("
            SELECT g.*, g.platform as source_name
            FROM games g
            
            WHERE g.game_key = :game_key
            LIMIT 1
        ");
        $stmt->execute(['game_key' => $gameKey]);
        $mainGame = $stmt->fetch(\PDO::FETCH_ASSOC);

        if (!$mainGame) {
            return $response->withStatus(404);
        }

        // Get all platform versions
        $gameModel = new Game($this->pdo);
        $gameModel->id = $mainGame['id'];
        $gameModel->game_key = $mainGame['game_key'];
        $platformVersions = $gameModel->getPlatformVersions();

        
        return $this->view->render($response, 'games/show.twig', [
            'title' => $mainGame['title'],
            'main_game' => $mainGame,
            'platform_versions' => $platformVersions
        ]);
    }
}