<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Integrations\Pods;

use Closure;
use LIT\MCP\Compatibility\CheckStep;
use LIT\MCP\Integrations\Pods\PodsCheckSteps;
use LIT\MCP\Tests\Unit\TestCase;
use RuntimeException;

final class PodsCheckStepsTest extends TestCase
{
    /** Captures what Log::failure writes to the PHP error log while $run runs. */
    private function logged(Closure $run): string
    {
        $log = (string) tempnam(sys_get_temp_dir(), 'lit-mcp-log');
        $previous = ini_set('error_log', $log);
        try {
            $run();

            return (string) file_get_contents($log);
        } finally {
            ini_set('error_log', (string) $previous);
            unlink($log);
        }
    }

    public function testStepsAreSkippedWithARedManifestAndTheProbeIsNotRun(): void
    {
        $ran = false;
        $steps = (PodsCheckSteps::extra(static function () use (&$ran): array {
            $ran = true;

            return [];
        }))(false);

        self::assertCount(1, $steps);
        self::assertSame(PodsCheckSteps::PROBE, $steps[0]->key);
        self::assertTrue($steps[0]->skipped);
        self::assertFalse($ran);
    }

    public function testTheStepCarriesTheProbeProblems(): void
    {
        $steps = (PodsCheckSteps::extra(static fn (): array => ['rot']))(true);

        self::assertSame(['rot'], $steps[0]->problems);
        self::assertFalse($steps[0]->skipped);
        self::assertSame('Lese- und Schreibtest an einem Wegwerf-Eintrag', $steps[0]->label());
    }

    /** No target is no red step: a skipped one would lock Pods on a site that has no pod yet (CheckReport::green()). */
    public function testWithoutATargetTheStepIsGreenAndSaysSo(): void
    {
        $steps = (PodsCheckSteps::extra(static fn (): ?array => null))(true);

        self::assertTrue($steps[0]->green());
        self::assertStringContainsString('nicht geprüft', $steps[0]->label());
    }

    public function testALateExceptionOfTheClosureIsStillGuarded(): void
    {
        $logged = $this->logged(function (): void {
            $steps = (PodsCheckSteps::extra(static fn (): never => throw new RuntimeException('boom')))(true);
            self::assertSame(['Prüfschritt abgebrochen (Details im PHP-Error-Log).'], $steps[0]->problems);
        });

        self::assertStringContainsString('boom', $logged);
    }

    public function testTheLabelOfAnOldStepComesFromTheKey(): void
    {
        self::assertSame(
            'Lese- und Schreibtest an einem Wegwerf-Eintrag',
            PodsCheckSteps::label(new CheckStep(PodsCheckSteps::PROBE, []))
        );
        self::assertSame(
            'Pods-Funktionen, Klassen und Registrierungen',
            PodsCheckSteps::label(new CheckStep(CheckStep::MANIFEST, []))
        );
        self::assertSame('other', PodsCheckSteps::label(new CheckStep('other', [])));
    }
}