feat: support login with email or username

app/Http/Controllers/Auth/LoginController.php

@@ -3,6 +3,7 @@
 namespace App\Http\Controllers\Auth;
 
 use App\Http\Controllers\Controller;
+use App\Models\User;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
@@ -25,18 +26,26 @@ class LoginController extends Controller
      */
     public function store(Request $request): RedirectResponse
     {
-        $credentials = $request->validate([
-            'email' => ['required', 'string', 'email'],
+        $request->validate([
+            'login' => ['required', 'string'],
             'password' => ['required', 'string'],
         ]);
 
+        $login = $request->input('login');
+        $password = $request->input('password');
+
+        $isEmail = filter_var($login, FILTER_VALIDATE_EMAIL);
+        $user = $isEmail
+            ? User::where('email', $login)->first()
+            : User::whereRaw('LOWER(username) = ?', [strtolower($login)])->first();
+
         $remember = config('auth-ui.features.remember_me')
             ? $request->boolean('remember')
             : false;
 
-        if (! Auth::attempt($credentials, $remember)) {
+        if (! $user || ! Auth::attempt(['email' => $user->email, 'password' => $password], $remember)) {
             throw ValidationException::withMessages([
-                'email' => __('auth.failed'),
+                'login' => __('auth.failed'),
             ]);
         }