<?php

declare(strict_types=1);

namespace App\Exceptions\FormBuilder;

use App\FormBuilder\Publishing\PublishGuardResult;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use RuntimeException;

/**
 * RFC-WS-6 §3 (Q13) — schema publish blocked because one or more
 * PublishGuards failed. Distinct from PurposeRequirementsNotMetException
 * (binding existence). Both can fire on `publish()`; both produce 422,
 * but they describe different failure classes.
 */
final class PublishGuardViolationException extends RuntimeException
{
    /**
     * @param  list<PublishGuardResult>  $violations
     */
    public function __construct(
        public readonly string $purposeSlug,
        public readonly array $violations,
    ) {
        $codes = array_map(static fn (PublishGuardResult $v): string => $v->guardCode, $violations);
        parent::__construct(
            "Schema publish blocked for purpose '{$purposeSlug}': " . implode(', ', $codes),
        );
    }

    public function render(Request $request): JsonResponse
    {
        return response()->json([
            'error' => 'publish_blocked',
            'message' => 'Schema kan niet gepubliceerd worden — er zijn problemen.',
            'purpose_slug' => $this->purposeSlug,
            'violations' => array_map(
                static fn (PublishGuardResult $v): array => [
                    'code' => $v->guardCode,
                    'message_key' => $v->messageKey,
                    'form_field_id' => $v->offendingFormFieldId,
                    'context' => $v->context,
                ],
                $this->violations,
            ),
        ], 422);
    }
}