feat: complete user authentication, admin guard, customer account dashboard and branded HTML emails

app/Http/Middleware/EnsureUserIsAdmin.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class EnsureUserIsAdmin
+{
+    /**
+     * Handle an incoming request.
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        if (! auth()->check()) {
+            return redirect()->guest(route('login'))
+                ->with('error', 'Log eerst in met je beheerder-account om toegang te krijgen tot het admin gedeelte.');
+        }
+
+        if (! auth()->user()->isAdmin()) {
+            return redirect()->route('home')
+                ->with('error', 'Je hebt geen beheerderstoegang tot deze pagina.');
+        }
+
+        return $next($request);
+    }
+}