<?php

namespace App\Http\Middleware;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;

class MediaVisibilityMiddleware implements MiddlewareInterface
{
    public function process(Request $request, RequestHandlerInterface $handler): Response
    {
        $path = $request->getUri()->getPath();

        // Map routes to media types
        $mediaRoutes = [
            '/media/games' => 'games',
            '/media/movies' => 'movies',
            '/media/tv-shows' => 'tvshows',
            '/media/music' => 'music',
            '/media/adult' => 'adult',
            '/media/actors' => 'actors'
        ];

        foreach ($mediaRoutes as $route => $mediaType) {
            if (strpos($path, $route) === 0) {
                // Check if this media type is visible to the current user
                if (!$this->isMediaTypeVisible($mediaType)) {
                    // Redirect to login or show 404 based on configuration
                    if (!is_logged_in()) {
                        return $handler->handle($request)->withStatus(401)->withHeader('Location', '/login');
                    } else {
                        return $handler->handle($request)->withStatus(404);
                    }
                }
                break;
            }
        }

        return $handler->handle($request);
    }

    private function isMediaTypeVisible(string $mediaType): bool
    {
        // Get database connection
        $pdo = \App\Database\Database::getInstance();

        // Get media visibility setting
        $stmt = $pdo->prepare("SELECT setting_value FROM settings WHERE setting_key = :key LIMIT 1");
        $stmt->execute(['key' => "media_visibility_{$mediaType}"]);
        $visibility = $stmt->fetchColumn() ?: 'authenticated'; // Default to authenticated only

        // Check user authentication status
        $isLoggedIn = is_logged_in();

        switch ($visibility) {
            case 'public':
                return true; // Visible to everyone
            case 'authenticated':
                return $isLoggedIn; // Visible only to authenticated users
            case 'hidden':
                return false; // Hidden from all users
            default:
                return $isLoggedIn; // Default to authenticated only
        }
    }
}