<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Guides;

use LIT\MCP\Guides\InstructionsBuilder;
use LIT\MCP\Integrations\Integration;
use LIT\MCP\Integrations\IntegrationRegistry;
use LIT\MCP\Tests\Unit\TestCase;
use Mockery;

final class InstructionsBuilderTest extends TestCase
{
    public function testNamesActiveIntegrationsAndCoreRules(): void
    {
        $core = Mockery::mock(Integration::class);
        $core->allows('id')->andReturn('core');
        $core->allows('isAvailable')->andReturn(true);

        $text = (new InstructionsBuilder(new IntegrationRegistry($core)))->build();

        self::assertStringContainsString('Aktive Integrationen: core', $text);
        self::assertStringContainsString('lit-guide', $text);
        self::assertStringContainsString('Status', $text);
        self::assertLessThan(2000, strlen($text), 'Instructions must stay short – they are loaded in every conversation.');
    }

    public function testListsPostTypesWhenAProviderIsGiven(): void
    {
        $core = Mockery::mock(Integration::class);
        $core->allows('id')->andReturn('core');
        $core->allows('isAvailable')->andReturn(true);

        $text = (new InstructionsBuilder(new IntegrationRegistry($core), static fn (): array => ['page', 'post']))->build();

        self::assertStringContainsString('Inhaltstypen: page, post', $text);
        self::assertStringContainsString('lit-content-types', $text);
        self::assertStringContainsString('confirm: true', $text);
    }
}