<?php

declare(strict_types=1);

namespace App\Http\Middleware;

use App\Constants\ErrorCode;
use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;

class ValidateHeaders
{
    /**
     * 处理请求
     *
     * @param Request $request
     * @param Closure $next
     * @return Response
     */
    public function handle(Request $request, Closure $next): Response
    {
        // 检查 Content-Type
        if ($request->isMethod('POST') || $request->isMethod('PUT') || $request->isMethod('PATCH')) {
            if (!$request->hasHeader('Content-Type') || !str_contains($request->header('Content-Type'), 'application/json')) {
                return response()->json([
                    'success' => false,
                    'error' => ErrorCode::INVALID_REQUEST_FORMAT,
                    'message' => '请求头必须包含 Content-Type: application/json',
                ], Response::HTTP_BAD_REQUEST);
            }
        }

        // 检查 Accept
        if (!$request->hasHeader('Accept') || !str_contains($request->header('Accept'), 'application/json')) {
            return response()->json([
                'success' => false,
                'error' => ErrorCode::INVALID_REQUEST_FORMAT,
                'message' => '请求头必须包含 Accept: application/json',
            ], Response::HTTP_BAD_REQUEST);
        }

        // 检查 API 版本
        if (!$request->hasHeader('X-API-Version')) {
            return response()->json([
                'success' => false,
                'error' => ErrorCode::INVALID_REQUEST_FORMAT,
                'message' => '请求头必须包含 X-API-Version',
            ], Response::HTTP_BAD_REQUEST);
        }

        // 检查客户端标识
        if (!$request->hasHeader('X-Client-ID')) {
            return response()->json([
                'success' => false,
                'error' => ErrorCode::INVALID_REQUEST_FORMAT,
                'message' => '请求头必须包含 X-Client-ID',
            ], Response::HTTP_BAD_REQUEST);
        }

        return $next($request);
    }
}