<?php
declare(strict_types=1);

namespace Tests\Shared;

use App\Shared\Http\FlashService;
use PHPUnit\Framework\TestCase;

#[\PHPUnit\Framework\Attributes\AllowMockObjectsWithoutExpectations]
final class FlashServiceTest extends TestCase
{
    protected function setUp(): void
    {
        $_SESSION = [];
    }

    public function testSetAndGetConsumesFlashMessage(): void
    {
        $flash = new FlashService();

        $flash->set('notice', 'Bonjour');

        self::assertSame('Bonjour', $flash->get('notice'));
        self::assertNull($flash->get('notice'));
    }

    public function testGetCastsNonStringValueAndRemovesIt(): void
    {
        $_SESSION['flash']['count'] = 123;

        $flash = new FlashService();

        self::assertSame('123', $flash->get('count'));
        self::assertArrayNotHasKey('count', $_SESSION['flash']);
    }

    public function testGetCastsBooleanFalseToEmptyStringAndRemovesIt(): void
    {
        $_SESSION['flash']['flag'] = false;

        $flash = new FlashService();

        self::assertSame('', $flash->get('flag'));
        self::assertArrayNotHasKey('flag', $_SESSION['flash']);
    }

    public function testSetOverridesPreviousMessageForSameKey(): void
    {
        $flash = new FlashService();

        $flash->set('notice', 'Premier');
        $flash->set('notice', 'Second');

        self::assertSame('Second', $flash->get('notice'));
    }

    public function testGetReturnsNullWhenMissing(): void
    {
        $flash = new FlashService();

        self::assertNull($flash->get('missing'));
    }
}