<?php

declare(strict_types=1);

namespace App\Tests\Unit\Service;

use App\Service\ProbeTrait;
use App\Service\ProviderErrorCode;
use App\Service\ProviderInterface;
use App\Service\ProviderStatusType;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\Test;
use PHPUnit\Framework\TestCase;
use Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;

#[CoversClass(ProbeTrait::class)]
final class ProbeTraitTest extends TestCase
{
    private function makeProvider(bool $configured, \Closure $ping): ProviderInterface
    {
        return new class($configured, $ping) implements ProviderInterface {
            use ProbeTrait;

            public function __construct(
                private bool $configured,
                private \Closure $ping,
            ) {}

            public function isConfigured(): bool { return $this->configured; }
            public function getName(): string { return 'test'; }
            public function ping(): void { ($this->ping)(); }
            public function fetch(): array { return []; }
        };
    }

    #[Test]
    public function it_returns_not_configured_when_provider_is_not_configured(): void
    {
        $provider = $this->makeProvider(false, fn() => null);

        $status = $provider->probe();

        $this->assertSame(ProviderStatusType::NotConfigured, $status->status);
        $this->assertNull($status->error);
    }

    #[Test]
    public function it_returns_ok_when_ping_succeeds(): void
    {
        $provider = $this->makeProvider(true, fn() => null);

        $status = $provider->probe();

        $this->assertSame(ProviderStatusType::Ok, $status->status);
        $this->assertNull($status->error);
    }

    #[Test]
    public function it_returns_url_unreachable_on_transport_failure(): void
    {
        $exception = $this->createStub(TransportExceptionInterface::class);
        $provider  = $this->makeProvider(true, fn() => throw $exception);

        $status = $provider->probe();

        $this->assertSame(ProviderStatusType::Error, $status->status);
        $this->assertSame(ProviderErrorCode::UrlUnreachable, $status->error);
    }

    #[Test]
    public function it_returns_auth_failed_on_401(): void
    {
        $response = $this->createStub(ResponseInterface::class);
        $response->method('getStatusCode')->willReturn(401);

        $exception = $this->createStub(ClientExceptionInterface::class);
        $exception->method('getResponse')->willReturn($response);

        $status = $this->makeProvider(true, fn() => throw $exception)->probe();

        $this->assertSame(ProviderStatusType::Error, $status->status);
        $this->assertSame(ProviderErrorCode::AuthFailed, $status->error);
    }

    #[Test]
    public function it_returns_auth_failed_on_403(): void
    {
        $response = $this->createStub(ResponseInterface::class);
        $response->method('getStatusCode')->willReturn(403);

        $exception = $this->createStub(ClientExceptionInterface::class);
        $exception->method('getResponse')->willReturn($response);

        $status = $this->makeProvider(true, fn() => throw $exception)->probe();

        $this->assertSame(ProviderStatusType::Error, $status->status);
        $this->assertSame(ProviderErrorCode::AuthFailed, $status->error);
    }

    #[Test]
    public function it_returns_url_unreachable_on_404(): void
    {
        $response = $this->createStub(ResponseInterface::class);
        $response->method('getStatusCode')->willReturn(404);

        $exception = $this->createStub(ClientExceptionInterface::class);
        $exception->method('getResponse')->willReturn($response);

        $status = $this->makeProvider(true, fn() => throw $exception)->probe();

        $this->assertSame(ProviderStatusType::Error, $status->status);
        $this->assertSame(ProviderErrorCode::UrlUnreachable, $status->error);
    }

    #[Test]
    public function it_returns_unknown_error_on_unexpected_exception(): void
    {
        $provider = $this->makeProvider(true, fn() => throw new \RuntimeException('Something went wrong'));

        $status = $provider->probe();

        $this->assertSame(ProviderStatusType::Error, $status->status);
        $this->assertSame(ProviderErrorCode::Unknown, $status->error);
        $this->assertSame('Something went wrong', $status->message);
    }
}