The Cinema Operating System: Multi-Tenant Routing, Cryptographic Gate Scanners & Automated Settlement.

<?php
/**
 * Router.php — High-Performance Multi-Tenant Resolution
 * Resolves tenant from HTTP_HOST, binds theater context, and sets timezone.
 */
class Router {
    private static ?array $currentTheater = null;

    public static function resolve(): ?array {
        if (self::$currentTheater !== null) {
            return self::$currentTheater;
        }

        $host = strtolower(trim($_SERVER['HTTP_HOST'] ?? ''));
        $host = explode(':', $host)[0]; // Strip debug port

        if (empty($host)) return null;

        // 1. Check if host matches the primary SaaS marketing domain
        $isSaas = DB::row("SELECT 1 FROM platform_settings WHERE setting_key = 'platform_domain' AND setting_value = ?", [$host]);
        if ($isSaas) {
            self::$currentTheater = ['is_saas' => true];
            return self::$currentTheater;
        }

        // 2. Query indexed theaters table by verified custom domain
        $theater = DB::row(
            "SELECT * FROM theaters WHERE domain = ? AND is_active = 1 LIMIT 1",
            [$host]
        );

        self::$currentTheater = $theater ?: null;
        return self::$currentTheater;
    }
}