make it possible to have username

src/Cli/AddUserCommand.php

@@ -21,6 +21,11 @@ class AddUserCommand extends Command
 
     public function execute(InputInterface $input, OutputInterface $output): int
     {
+        if (!filter_var($input->getArgument('email'), FILTER_VALIDATE_EMAIL)) {
+            $output->writeln('<error>Please provide a valid email address.</error>');
+            return 1;
+        }
+
         $user = new User();
         $user->setEmail($input->getArgument('email'));
         $user->setPlainPassword($input->getArgument('password'));

src/Controller/LoginController.php

@@ -109,11 +109,11 @@ class LoginController
             return new JsonContent(['success' => true]);
         }
 
-        $user = $this->userRepository->getByEmail($this->request->post('email'));
+        $user = $this->userRepository->getByEmailOrUsername($this->request->post('email'));
         if ($user === null || !$user->checkPassword($this->request->post('password'))) {
             return new JsonContent([
                 'error' => [
-                    'errorText' => 'No user found with the given email address or the given password is wrong. You can <a href="/password/requestReset?email=' .
+                    'errorText' => 'No user found with the given email address / username or the given password is wrong. You can <a href="/password/requestReset?email=' .
                         urlencode($this->request->post('email')) . '" title="Request password reset">request password reset</a>!'
                 ]
             ]);
@@ -200,11 +200,11 @@ class LoginController
             }
         }
 
-        $user = $this->userRepository->getByEmail($this->request->post('email'));
+        $user = $this->userRepository->getByEmailOrUsername($this->request->post('email'));
         if ($user === null) {
             return new JsonContent([
                 'error' => [
-                    'errorText' => 'No user found with the given email address.'
+                    'errorText' => 'No user found with the given email address / username.'
                 ]
             ]);
         }

src/PersistentData/Model/User.php

@@ -8,12 +8,14 @@ class User extends Model implements IUser
 {
     protected static string $table = 'users';
 
-    protected static array $fields = ['email', 'password', 'type', 'google_sub', 'created'];
+    protected static array $fields = ['email', 'username', 'password', 'type', 'google_sub', 'created'];
 
     private static array $types = ['user', 'admin'];
 
     private string $email = '';
 
+    private ?string $username = null;
+
     private ?string $password = null;
 
     private string $type = 'user';
@@ -27,6 +29,11 @@ class User extends Model implements IUser
         $this->email = $email;
     }
 
+    public function setUsername(?string $username): void
+    {
+        $this->username = $username;
+    }
+
     public function setPassword(?string $hashedPassword): void
     {
         $this->password = $hashedPassword;
@@ -64,6 +71,11 @@ class User extends Model implements IUser
         return $this->email;
     }
 
+    public function getUsername(): ?string
+    {
+        return $this->username;
+    }
+
     public function getPassword(): ?string
     {
         return $this->password;

src/Repository/UserRepository.php

@@ -27,6 +27,23 @@ class UserRepository implements IUserRepository
         return $this->pdm->selectFromDb($select, User::class);
     }
 
+    public function getByUsername(string $username): ?User
+    {
+        $select = new Select(\Container::$dbConnection);
+        $select->where('username', '=', $username);
+
+        return $this->pdm->selectFromDb($select, User::class);
+    }
+
+    public function getByEmailOrUsername(string $emailOrUsername): ?User
+    {
+        if (filter_var($emailOrUsername, FILTER_VALIDATE_EMAIL)) {
+            return $this->getByEmail($emailOrUsername);
+        }
+
+        return $this->getByUsername($emailOrUsername);
+    }
+
     public function getByGoogleSub(string $sub): ?User
     {
         $select = new Select(\Container::$dbConnection);