<?php

namespace Tests\Unit\EcommerceFinance;

use Mockery;
use Mockery\Adapter\Phpunit\MockeryPHPUnitIntegration;
use Modules\EcommerceFinance\Services\UpstreamDatabaseProbe;
use PDO;
use PDOException;
use PDOStatement;
use PHPUnit\Framework\TestCase;
use Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException;

class UpstreamDatabaseProbeTest extends TestCase
{
    use MockeryPHPUnitIntegration;

    private function connection(): array
    {
        return ['host' => 'db.example.test', 'port' => 25432, 'database' => "test' database",
            'username' => 'reader', 'password' => 'fixture-secret', 'connect_timeout' => 5, 'query_timeout' => 120];
    }

    public function test_postgres_probe_uses_the_shared_connector_and_one_select(): void
    {
        $statement = Mockery::mock(PDOStatement::class);
        $statement->shouldReceive('fetchColumn')->once()->andReturn(1);
        $statement->shouldReceive('closeCursor')->once();
        $pdo = Mockery::mock(PDO::class);
        $pdo->shouldReceive('query')->once()->with('SELECT 1')->andReturn($statement);
        $probe = Mockery::mock(UpstreamDatabaseProbe::class)->makePartial()->shouldAllowMockingProtectedMethods();
        $probe->shouldReceive('connect')->once()->with('pgsql', $this->connection())->andReturn($pdo);
        $probe->probe('pgsql', $this->connection(), '测试库');
    }

    public function test_driver_error_never_exposes_credentials(): void
    {
        $probe = Mockery::mock(UpstreamDatabaseProbe::class)->makePartial()->shouldAllowMockingProtectedMethods();
        $probe->shouldReceive('connect')->once()->andThrow(new PDOException('fixture-secret private driver detail'));
        try {
            $probe->probe('pgsql', $this->connection(), '测试库');
            $this->fail('Expected sanitized connection error');
        } catch (ServiceUnavailableHttpException $exception) {
            $this->assertStringContainsString('上游只读连接失败', $exception->getMessage());
            $this->assertStringNotContainsString('fixture-secret', $exception->getMessage());
            $this->assertNull($exception->getPrevious());
        }
    }

    public function test_unsupported_driver_is_not_probed(): void
    {
        $this->expectException(ServiceUnavailableHttpException::class);
        $this->expectExceptionMessage('不支持此数据库类型');
        (new UpstreamDatabaseProbe())->probe('unknown', [], '测试库');
    }
}