feat: make username validation rules configurable

Author: kenjis

src/Config/Auth.php

@@ -223,6 +223,20 @@ class Auth extends BaseConfig
         'username',
     ];
 
+    /**
+     * --------------------------------------------------------------------
+     * Validation Rules for username
+     * --------------------------------------------------------------------
+     *
+     * @var string[]
+     */
+    public array $validationRulesUsername = [
+        'required',
+        'max_length[30]',
+        'min_length[3]',
+        'regex_match[/\A[a-zA-Z0-9\.]+\z/]',
+    ];
+
     /**
      * --------------------------------------------------------------------
      * Additional Fields for "Nothing Personal"

src/Controllers/LoginController.php

@@ -64,7 +64,7 @@ public function loginAction(): RedirectResponse
     protected function getValidationRules(): array
     {
         return setting('Validation.login') ?? [
-            //'username' => 'required|max_length[30]|regex_match[/\A[a-zA-Z0-9\.]+\z/]|min_length[3]',
+            //'username' => setting('Auth.validationRulesUsername'),
             'email'    => 'required|max_length[254]|valid_email',
             'password' => 'required',
         ];

src/Controllers/RegisterController.php

@@ -130,8 +130,13 @@ protected function getUserEntity(): User
      */
     protected function getValidationRules(): array
     {
+        $usernameRules = array_merge(
+            setting('Auth.validationRulesUsername'),
+            ['is_unique[users.username]']
+        );
+
         return setting('Validation.registration') ?? [
-            'username'         => 'required|max_length[30]|regex_match[/\A[a-zA-Z0-9\.]+\z/]|min_length[3]|is_unique[users.username]',
+            'username'         => $usernameRules,
             'email'            => 'required|valid_email|is_unique[auth_identities.secret]',
             'password'         => 'required|strong_password',
             'password_confirm' => 'required|matches[password]',

tests/Controllers/LoginTest.php

@@ -120,10 +120,10 @@ public function testLoginActionUsernameSuccess(): void
         // Change the validation rules
         $config           = new class () extends Validation {
             public $login = [
-                'username' => 'required|max_length[30]|regex_match[/\A[a-zA-Z0-9\.]+\z/]|min_length[3]',
                 'password' => 'required',
             ];
         };
+        $config->login['username'] = setting('Auth.validationRulesUsername');
         Factories::injectMock('config', 'Validation', $config);
 
         $this->user->createEmailIdentity([