<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Admin;

use Brain\Monkey\Functions;
use LIT\MCP\Admin\ConnectionStatus;
use LIT\MCP\Tests\Unit\TestCase;
use Mockery;

final class ConnectionStatusTest extends TestCase
{
    public function testEndpointCheckExpects401WithBearerChallengeAndCachesIt(): void
    {
        Functions\when('get_transient')->justReturn(false);
        Functions\when('rest_url')->justReturn('https://kunde.de/wp-json/mcp/mcp-oauth-server');
        Functions\expect('wp_remote_post')->once()->with('https://kunde.de/wp-json/mcp/mcp-oauth-server', Mockery::type('array'))
            ->andReturn(['response' => ['code' => 401]]);
        Functions\when('wp_remote_retrieve_response_code')->justReturn(401);
        Functions\when('wp_remote_retrieve_header')->justReturn('Bearer realm="https://kunde.de"');
        Functions\expect('set_transient')->once()
            ->with('lit_mcp_endpoint_check', Mockery::on(static fn (array $value): bool => $value['ok'] === true), 300);

        $result = (new ConnectionStatus(static fn (): bool => true))->endpoint(true);

        self::assertTrue($result['ok']);
    }

    public function testEndpointAnsweringWithoutChallengeIsReported(): void
    {
        Functions\when('get_transient')->justReturn(false);
        Functions\when('rest_url')->justReturn('https://kunde.de/wp-json/mcp/mcp-oauth-server');
        Functions\when('wp_remote_post')->justReturn(['response' => ['code' => 200]]);
        Functions\when('wp_remote_retrieve_response_code')->justReturn(200);
        Functions\when('wp_remote_retrieve_header')->justReturn('');
        Functions\when('set_transient')->justReturn(true);

        $result = (new ConnectionStatus(static fn (): bool => true))->endpoint(true);

        self::assertFalse($result['ok']);
        self::assertStringContainsString('200', $result['message']);
    }

    public function testChecksWithoutFetchingUseOnlyCachedResults(): void
    {
        Functions\when('get_transient')->justReturn(false);
        Functions\expect('wp_remote_post')->never();
        Functions\when('home_url')->justReturn('http://kunde.test');

        $checks = (new ConnectionStatus(static fn (): bool => false))->checks(false);

        $byLabel = array_column($checks, null, 'label');
        self::assertFalse($byLabel['OAuth-Server']['ok']);
        self::assertFalse($byLabel['HTTPS']['ok']);
        self::assertNull($byLabel['Discovery (/.well-known/)']['ok']);
        self::assertNull($byLabel['Endpunkt ohne Token']['ok']);
    }
}