<?php
declare(strict_types=1);

namespace Tests\Shared;

use App\Shared\Database\Provisioner;
use PDO;
use PHPUnit\Framework\TestCase;

final class ProvisionerTest extends TestCase
{
    private PDO $db;
    private string $lockPath;
    private bool $lockExistedBefore;

    /** @var array<string, string> */
    private array $envBackup;

    protected function setUp(): void
    {
        $this->db = new PDO('sqlite::memory:', options: [
            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
        ]);
        $this->db->sqliteCreateFunction('strip_tags', 'strip_tags', 1);

        $this->lockPath = dirname(__DIR__, 2) . '/database/.provision.lock';
        $this->lockExistedBefore = file_exists($this->lockPath);

        $this->envBackup = [
            'ADMIN_USERNAME' => $_ENV['ADMIN_USERNAME'] ?? '',
            'ADMIN_EMAIL'    => $_ENV['ADMIN_EMAIL'] ?? '',
            'ADMIN_PASSWORD' => $_ENV['ADMIN_PASSWORD'] ?? '',
        ];

        $_ENV['ADMIN_USERNAME'] = 'shared-admin';
        $_ENV['ADMIN_EMAIL']    = 'shared-admin@example.com';
        $_ENV['ADMIN_PASSWORD'] = 'strong-secret';
    }

    protected function tearDown(): void
    {
        foreach ($this->envBackup as $key => $value) {
            $_ENV[$key] = $value;
        }

        if (!$this->lockExistedBefore && file_exists($this->lockPath)) {
            @unlink($this->lockPath);
        }
    }

    public function testRunAppliesMigrationsSeedsAdminAndCreatesLockFile(): void
    {
        Provisioner::run($this->db);

        self::assertFileExists($this->lockPath);

        $migrationCount = (int) $this->db->query('SELECT COUNT(*) FROM migrations')->fetchColumn();
        self::assertGreaterThan(0, $migrationCount, 'Les migrations doivent être enregistrées');

        $admin = $this->db->query("SELECT username, email, role FROM users WHERE username = 'shared-admin'")->fetch();
        self::assertIsArray($admin);
        self::assertSame('shared-admin@example.com', $admin['email']);
        self::assertSame('admin', $admin['role']);
    }

    public function testRunIsIdempotentForAdminSeed(): void
    {
        Provisioner::run($this->db);
        Provisioner::run($this->db);

        $adminCount = (int) $this->db->query("SELECT COUNT(*) FROM users WHERE username = 'shared-admin'")->fetchColumn();
        self::assertSame(1, $adminCount);
    }
}