user display name is the username

database/migrations/data/20230923_1905_username.php

@@ -1,13 +1,20 @@
 <?php
 
-use Faker\Factory;
 use MapGuesser\PersistentData\Model\User;
+use MapGuesser\Repository\UserRepository;
+use MapGuesser\Util\UsernameGenerator;
 use SokoWeb\Database\Query\Select;
 
 $select = new Select(Container::$dbConnection);
 $users = Container::$persistentDataManager->selectMultipleFromDb($select, User::class);
+$userRepository = new UserRepository();
+$usernameGenerator = new UsernameGenerator();
 
 foreach ($users as $user) {
-    $user->setUsername(Factory::create()->userName);
+    do {
+        $username = $usernameGenerator->generate();
+    } while ($userRepository->getByUsername($username));
+
+    $user->setUsername($username);
     Container::$persistentDataManager->saveToDb($user);
 }

src/Controller/LoginController.php

@@ -2,7 +2,6 @@
 
 use DateInterval;
 use DateTime;
-use Faker\Factory;
 use SokoWeb\Http\Request;
 use SokoWeb\Interfaces\Response\IContent;
 use SokoWeb\Interfaces\Response\IRedirect;
@@ -15,6 +14,7 @@ use MapGuesser\Repository\UserConfirmationRepository;
 use MapGuesser\Repository\UserPasswordResetterRepository;
 use MapGuesser\Repository\UserPlayedPlaceRepository;
 use MapGuesser\Repository\UserRepository;
+use MapGuesser\Util\UsernameGenerator;
 use SokoWeb\Response\HtmlContent;
 use SokoWeb\Response\JsonContent;
 use SokoWeb\Response\Redirect;
@@ -368,7 +368,7 @@ class LoginController
             return new JsonContent(['error' => ['errorText' => 'Username can contain only english letters, digits, - (hyphen), . (dot), _ (underscore).']]);
         }
 
-        $newUser->setUsername(strlen(\Container::$request->post('username')) > 0 ? \Container::$request->post('username') : Factory::create()->userName);
+        $newUser->setUsername(strlen(\Container::$request->post('username')) > 0 ? \Container::$request->post('username') : (new UsernameGenerator())->generate());
         $newUser->setCreatedDate(new DateTime());
 
         \Container::$persistentDataManager->saveToDb($newUser);

src/PersistentData/Model/User.php

@@ -132,7 +132,7 @@ class User extends Model implements IUser
 
     public function getDisplayName(): string
     {
-        return $this->email;
+        return $this->username;
     }
 
     public function checkPassword(string $password): bool

src/Util/UsernameGenerator.php

@@ -0,0 +1,247 @@
+<?php namespace MapGuesser\Util;
+
+class UsernameGenerator
+{
+    const ADJECTIVES = [
+        'abundant',
+        'agile',
+        'alluring',
+        'ample',
+        'adorable',
+        'angry',
+        'anxious',
+        'astonishing',
+        'beautiful',
+        'big',
+        'bitter',
+        'blissful',
+        'blue',
+        'brave',
+        'bright',
+        'brilliant',
+        'busy',
+        'calm',
+        'captivating',
+        'careful',
+        'charming',
+        'cheerful',
+        'clumsy',
+        'colorful',
+        'confused',
+        'cooperative',
+        'courageous',
+        'cozy',
+        'crispy',
+        'curious',
+        'dazzling',
+        'delightful',
+        'determined',
+        'eager',
+        'elegant',
+        'enchanting',
+        'enthusiastic',
+        'exciting',
+        'exquisite',
+        'faithful',
+        'fancy',
+        'fearless',
+        'fierce',
+        'fluffy',
+        'fresh',
+        'friendly',
+        'frigid',
+        'funny',
+        'gentle',
+        'glorious',
+        'graceful',
+        'grateful',
+        'happy',
+        'harmonious',
+        'healthy',
+        'helpful',
+        'honest',
+        'hopeful',
+        'hot',
+        'humble',
+        'hungry',
+        'impressive',
+        'infamous',
+        'innocent',
+        'intense',
+        'jolly',
+        'joyful',
+        'kind',
+        'lively',
+        'lonely',
+        'lovely',
+        'lucky',
+        'mysterious',
+        'naughty',
+        'nervous',
+        'nutritious',
+        'obedient',
+        'peaceful',
+        'playful',
+        'polite',
+        'powerful',
+        'precious',
+        'proud',
+        'radiant',
+        'reckless',
+        'reliable',
+        'rich',
+        'romantic',
+        'rough',
+        'sad',
+        'scary',
+        'sensitive',
+        'shiny',
+        'silky',
+        'sincere',
+        'sleepy',
+        'smart',
+        'sneaky',
+        'soft',
+        'sparkling',
+        'splendid',
+        'strong',
+        'stubborn',
+        'sweet',
+        'tender',
+        'thoughtful',
+        'thrilling',
+        'timid',
+        'tranquil',
+        'trustworthy',
+        'unique',
+        'vibrant',
+        'victorious',
+        'warm',
+        'wise',
+        'witty',
+        'wonderful',
+        'worried',
+        'zealous'
+    ];
+
+    const NOUNS = [
+        'airplane',
+        'ant',
+        'apple',
+        'aquarium',
+        'backpack',
+        'banana',
+        'bear',
+        'bee',
+        'camera',
+        'car',
+        'cat',
+        'chocolate',
+        'desk',
+        'diamond',
+        'dog',
+        'dolphin',
+        'duck',
+        'egg',
+        'eiffeltower',
+        'elephant',
+        'fire',
+        'flower',
+        'forest',
+        'fork',
+        'fox',
+        'galaxy',
+        'giraffe',
+        'globe',
+        'guitar',
+        'hammer',
+        'hamster',
+        'hat',
+        'house',
+        'icecream',
+        'iguana',
+        'island',
+        'jacket',
+        'jaguar',
+        'jellyfish',
+        'jigsaw',
+        'kangaroo',
+        'key',
+        'kite',
+        'koala',
+        'lamp',
+        'lighthouse',
+        'lightning',
+        'lion',
+        'llama',
+        'moon',
+        'mountain',
+        'mouse',
+        'necklace',
+        'nest',
+        'newt',
+        'notebook',
+        'ocean',
+        'octopus',
+        'orchid',
+        'owl',
+        'panda',
+        'pencil',
+        'penguin',
+        'piano',
+        'queen',
+        'quilt',
+        'quokka',
+        'rabbit',
+        'rainbow',
+        'robot',
+        'ship',
+        'snake',
+        'statue',
+        'sun',
+        'sunflower',
+        'table',
+        'telescope',
+        'tiger',
+        'tree',
+        'turtle',
+        'uakari',
+        'umbrella',
+        'unicorn',
+        'universe',
+        'vase',
+        'violin',
+        'volcano',
+        'vulture',
+        'wallaby',
+        'waterfall',
+        'whale',
+        'xray',
+        'xylophone',
+        'yacht',
+        'yak',
+        'yarn',
+        'yeti',
+        'zebra',
+        'zeppelin',
+        'zucchini',
+    ];
+
+    function generate(): string
+    {
+        $numberOfAdjectives = count(self::ADJECTIVES);
+        $numberOfNouns = count(self::NOUNS);
+
+        $firstAdjective = self::ADJECTIVES[mt_rand(0, $numberOfAdjectives - 1)];
+        do {
+            $secondAdjective = self::ADJECTIVES[mt_rand(0, $numberOfAdjectives - 1)];
+        } while ($firstAdjective === $secondAdjective);
+        $noun = self::NOUNS[mt_rand(0, $numberOfNouns - 1)];
+
+        $firstAdjective = ucfirst($firstAdjective);
+        $secondAdjective = ucfirst($secondAdjective);
+        $noun = ucfirst($noun);
+
+        return $firstAdjective . $secondAdjective . $noun;
+    }
+}

tests/Util/UsernameGeneratorTest.php

@@ -0,0 +1,23 @@
+<?php namespace MapGuesser\Tests\Util;
+
+use MapGuesser\Util\UsernameGenerator;
+use PHPUnit\Framework\TestCase;
+
+final class UsernameGeneratorTest extends TestCase
+{
+    public function testCanGenerateRandomUsernameFromComponents(): void
+    {
+        $generator = new UsernameGenerator();
+        $parts = $this->getUsernameParts($generator->generate());
+
+        $this->assertEquals(3, count($parts));
+        $this->assertContains($parts[0], UsernameGenerator::ADJECTIVES);
+        $this->assertContains($parts[1], UsernameGenerator::ADJECTIVES);
+        $this->assertContains($parts[2], UsernameGenerator::NOUNS);
+    }
+
+    private function getUsernameParts(string $username): array
+    {
+        return explode('-', strtolower(preg_replace('/([a-z])([A-Z])/', '$1-$2', $username)));
+    }
+}