<?php

namespace App\Exception\Handler;

use App\Lib\AdminReturn;
use App\Lib\ApiReturn;
use Hyperf\ExceptionHandler\ExceptionHandler;
use Hyperf\HttpServer\Request;
use Psr\Http\Message\ResponseInterface;
use Throwable;
use Hyperf\Validation\ValidationException;
use Hyperf\HttpMessage\Stream\SwooleStream;

class ValidationDataExceptionHandler extends ExceptionHandler
{
    /**
     * @param Request $request
     * @param AdminReturn $adminReturn
     * @param ApiReturn $apiReturn
     */
    public function __construct(
        private readonly Request $request,
        private readonly AdminReturn $adminReturn,
        private readonly ApiReturn $apiReturn,
    ) {}

    /**
     * 验证器异常处理
     * @param Throwable $throwable
     * @param ResponseInterface $response
     * @return ResponseInterface
     */
    public function handle(Throwable $throwable, ResponseInterface $response): ResponseInterface
    {
        if ($throwable instanceof ValidationException) {
            // 格式化输出
            $urlArr = explode('/',$this->request->path());

            $result = match ($urlArr[0]) {
                'api' => $this->apiReturn->error($throwable->validator->errors()->first()),
                'admin', 'common' => $this->adminReturn->error($throwable->validator->errors()->first()),
                default => null,
            };

            // 阻止异常冒泡
            $this->stopPropagation();

            if (!empty($result)) {
                return $response->withHeader("Content-Type", "application/json")
                    ->withStatus(200)
                    ->withBody(new SwooleStream(json_encode($result, JSON_UNESCAPED_UNICODE)));
            }
        }

        // 交给下一个异常处理器
        return $response;
    }

    public function isValid(Throwable $throwable): bool
    {
        return true;
    }
}