Add all files

Disabled/Affiliates/Middleware/AffiliatesMiddleware.php

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+<?php
+
+namespace Paymenter\Extensions\Others\Affiliates\Middleware;
+
+use App\Helpers\ExtensionHelper;
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Cookie;
+use Paymenter\Extensions\Others\Affiliates\Models\Affiliate;
+use Symfony\Component\HttpFoundation\Response;
+
+class AffiliatesMiddleware
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        // Continue if request doesn't contain `ref` query parameter
+        if (!request()->has('ref')) {
+            return $next($request);
+        }
+
+        $affiliate = Affiliate::where('code', request('ref'))->first();
+
+        if (!$affiliate || $affiliate->user->id === auth()->id()) {
+            return $next($request);
+        }
+
+        // Increase the visitor count if a cookie is not present already, or is not the same one
+        if (!Cookie::has('referred_by') || Cookie::get('referred_by') !== $affiliate->code) {
+            $affiliate->increment('visitors');
+        }
+
+        $extension = ExtensionHelper::getExtension('other', 'Affiliates');
+        $cookie_max_age = (int) $extension->config('cookie_max_age');
+
+        if ($cookie_max_age > 0) {
+            // Set affiliate cookie (and set it to expire after `$cookie_max_age` days)
+            Cookie::queue('referred_by', $affiliate->code, minutes: 60 * 24 * $cookie_max_age);
+        } else {
+            // Never expire
+            Cookie::queue(Cookie::forever('referred_by', $affiliate->code));
+        }
+
+        return $next($request);
+    }
+}