<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;

use App\Models\Core\Program;

class ResolveProgram
{
    /**
     * Handle an incoming request.
     *
     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
     */
    public function handle(Request $request, Closure $next): Response
    {
        $host = $request->getHost();
        $parts = explode('.', $host);

        if ($host === 'localhost' || filter_var($host, FILTER_VALIDATE_IP)) {
            return $next($request);
        }

        if (count($parts) < 3) {
            return $next($request);
        }

        $subdomain = $parts[0]; 

        $program = Program::where('sub_domain', $subdomain)->first();
        if (!$program) {
            return $next($request);
        }
        app()->instance('SystemProgram', $program);
        return $next($request);
    }
}