<?php

declare(strict_types=1);

namespace App\Support;

use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Http\JsonResponse;
use stdClass;

final class ApiResponse
{
    public const DEFAULT_PER_PAGE = 20;

    public const MAX_PER_PAGE = 100;

    public static function success(mixed $data = null, string $message = 'OK', int $status = 200): JsonResponse
    {
        return response()->json([
            'success' => true,
            'message' => $message,
            'data' => $data,
        ], $status);
    }

    /**
     * @param  array<string, mixed>  $errors
     */
    public static function failure(string $message, array $errors = [], int $status = 400): JsonResponse
    {
        return response()->json([
            'success' => false,
            'message' => $message,
            'errors' => $errors === [] ? new stdClass : $errors,
        ], $status);
    }

    /**
     * @param  LengthAwarePaginator<int, mixed>  $paginator
     */
    public static function paginated(LengthAwarePaginator $paginator, string $message = 'OK'): JsonResponse
    {
        return response()->json([
            'success' => true,
            'message' => $message,
            'data' => array_values($paginator->items()),
            'meta' => [
                'current_page' => $paginator->currentPage(),
                'per_page' => $paginator->perPage(),
                'total' => $paginator->total(),
                'last_page' => $paginator->lastPage(),
            ],
        ]);
    }

    public static function perPage(mixed $requested): int
    {
        if (! is_numeric($requested)) {
            return self::DEFAULT_PER_PAGE;
        }

        $pageSize = (int) $requested;

        if ($pageSize < 1) {
            return self::DEFAULT_PER_PAGE;
        }

        return min($pageSize, self::MAX_PER_PAGE);
    }
}