<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;

class SecurityHeaders
{
    /**
     * Apply baseline security headers for all responses.
     */
    public function handle(Request $request, Closure $next): Response
    {
        $response = $next($request);

        $response->headers->set('X-Frame-Options', 'DENY');
        $response->headers->set('X-Content-Type-Options', 'nosniff');
        $response->headers->set('Referrer-Policy', 'strict-origin-when-cross-origin');
        $response->headers->set('Permissions-Policy', 'geolocation=(), microphone=(), camera=()');

        if (app()->environment('production')) {
            $response->headers->set('Strict-Transport-Security', 'max-age=63072000; includeSubDomains; preload');
        }

        // Compatibility-safe baseline CSP for current frontend (inline styles/scripts and payment integrations).
        $csp = implode(' ', [
            "default-src 'self';",
            "base-uri 'self';",
            "object-src 'none';",
            "frame-ancestors 'self';",
            "script-src 'self' 'unsafe-inline' 'unsafe-eval' https://checkout.razorpay.com https://api.razorpay.com https://static.cloudflareinsights.com https://www.googletagmanager.com;",
            "style-src 'self' 'unsafe-inline';",
            "img-src 'self' data: https: https://www.google-analytics.com https://*.google-analytics.com;",
            "font-src 'self' data:;",
            "frame-src 'self' https://api.razorpay.com https://checkout.razorpay.com;",
            "connect-src 'self' https://api.razorpay.com https://checkout.razorpay.com https://lumberjack.razorpay.com https://static.cloudflareinsights.com https://www.google-analytics.com https://*.google-analytics.com;",
        ]);
        $response->headers->set('Content-Security-Policy', $csp);

        return $response;
    }
}