mtb_store_frontend/app/Http/Middleware/LoadDistData.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;
use App\Helpers\SiteCache;
use App\Services\TemplateUpdater;
use App\Services\LiquidRenderer;
/**
 * Class LoadDistData 用中间件来获取distm网店信息
 */
class LoadDistData
{
    /**
     * Handle an incoming request.
     *
     * @param
     */
    public function handle(Request $request, Closure $next): Response
    {


        // 获取请求的域名
        $domain = getHost();

        // 从缓存中获取站点配置并反序列化
        $dist = SiteCache::getDist($domain);
        $dist = $dist ? unserialize($dist) : null;

        // 如果找不到匹配的数据，直接返回404响应
        if (!$dist) {
            abort(404, 'site not found.');
        }

        // 检查模板是否需要更新
        if (  !$dist->publishList->template_local_code ||
            $dist->publishList->template_update_code !== $dist->publishList->template_local_code) {

            // dd('update template');
            // 更新模板
            TemplateUpdater::updateTemplates($dist);

            // 清除缓存并重新获取
            SiteCache::clearDistCache($domain);
            $dist = SiteCache::getDist($domain);
            $dist = $dist ? unserialize($dist) : null;

            if (!$dist) {
                abort(404, 'site not found.');
            }
        }


        // 全局共享  数据
        app()->instance('dist', $dist);
        // 将找到的 dist 数据添加到请求中，方便后续使用
        $request->attributes->set('dist', $dist);


        //保存到共享地方供其它地方用

        return $next($request);
    }
}