<?php

declare(strict_types=1);

namespace Aether;

class AetherResponse
{
    /**
     * 成功响应.
     * @param null|mixed $data 数据
     * @param string $message 消息
     */
    public static function success(mixed $data = null, string $message = '操作成功'): array
    {
        return [
            Config::RESPONSE_FIELD_KEY_DATA => $data,
            Config::RESPONSE_FIELD_KEY_CODE => Config::RESPONSE_SUCCESS_CODE,
            Config::RESPONSE_FIELD_KEY_MESSAGE => $message ?: Config::RESPONSE_SUCCESS_MESSAGE,
        ];
    }

    /**
     * 错误响应.
     * @param int $code 错误码
     * @param string $message 错误消息
     * @param null|mixed $data 附加数据
     */
    public static function error(string $message = '', int $code = Config::RESPONSE_FAIL_CODE, mixed $data = null): array
    {
        return [
            Config::RESPONSE_FIELD_KEY_CODE => $code,
            Config::RESPONSE_FIELD_KEY_DATA => $data,
            Config::RESPONSE_FIELD_KEY_MESSAGE => $message ?: self::getDefaultMessage($code),
        ];
    }

    public static function page($list, int $total, int $page, int $size): array
    {
        return [
            Config::RESPONSE_FIELD_KEY_CODE => Config::RESPONSE_SUCCESS_CODE,
            Config::RESPONSE_FIELD_KEY_MESSAGE => 'success',
            Config::RESPONSE_FIELD_KEY_LIST => [
                'list' => $list,
                'page' => $page,
                'size' => $size,
                'total' => $total,
                'pages' => (int) ceil($total / $size),
            ],
        ];
    }

    /**
     * 获取默认错误消息.
     */
    private static function getDefaultMessage(int $code): string
    {
        $messages = [
            400 => '请求参数错误',
            401 => '未授权',
            403 => '禁止访问',
            404 => '资源不存在',
            500 => '服务器内部错误',
            10001 => '校区不存在',
        ];

        return $messages[$code] ?? '未知错误';
    }
}