User: Make duplication checks optional

src/User/User.php

@@ -220,9 +220,10 @@ public function getUsername(): string
      * Sets the username of the user. Does validation (duplicate check, length check)
      * 
      * @param string $username The new username of the user.
+     * @param bool $duplicateCheck Whether to check if the username is already in use.
      * @return bool True if the username was set successfully, false if a user with the same username already exists.
      */
-    public function setUsername(string $username): bool
+    public function setUsername(string $username, bool $duplicateCheck = true): bool
     {
         if (strlen($username) < 3 || strlen($username) > 20) {
             return false;
@@ -232,7 +233,7 @@ public function setUsername(string $username): bool
             return false;
         }
 
-        if (User::getByUsername($username) !== null) {
+        if ($duplicateCheck && User::getByUsername($username) !== null) {
             return false;
         }
 
@@ -253,15 +254,16 @@ public function getEmail(): string
      * When updating the value, make sure to re-verify the email address and to change the users' status to Unverified.
      * 
      * @param string $email The new email address of the user.
+     * @param bool $duplicateCheck Whether to check if the email address is already in use.
      * @return bool True if the email address was set successfully, false otherwise.
      */
-    public function setEmail(string $email): bool
+    public function setEmail(string $email, bool $duplicateCheck = true): bool
     {
         if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
             return false;
         }
 
-        if (User::getByEmail($email) !== null) {
+        if ($duplicateCheck && User::getByEmail($email) !== null) {
             return false;
         }
 

tests/User/UserTest.php

@@ -40,11 +40,11 @@ public function testSetEmail(): void
         ]);
 
         // Test setting a valid email
-        $this->assertTrue($user->setEmail('[email protected]'));
+        $this->assertTrue($user->setEmail('[email protected]', false));
         $this->assertEquals('[email protected]', $user->getEmail());
 
         // Test setting an invalid email
-        $this->assertFalse($user->setEmail('invalid-email'));
+        $this->assertFalse($user->setEmail('invalid-email', false));
         $this->assertNotEquals('invalid-email', $user->getEmail());
         $this->assertEquals('[email protected]', $user->getEmail());
 
@@ -62,11 +62,11 @@ public function testSetUsername(): void
         ]);
 
         // Test setting a valid username
-        $this->assertTrue($user->setUsername('john_doe2'));
+        $this->assertTrue($user->setUsername('john_doe2', false));
         $this->assertEquals('john_doe2', $user->getUsername());
 
         // Test setting an invalid username
-        $this->assertFalse($user->setUsername('invalid-username'));
+        $this->assertFalse($user->setUsername('invalid-username', false));
         $this->assertNotEquals('invalid-username', $user->getUsername());
         $this->assertEquals('john_doe2', $user->getUsername());