<?php

namespace App\Components\Protocols;

use App\Components\Client\SingBoxBuildProxy;
use App\Models\User;
use File;

class SingBox
{
   function NewSingBox(User $user,$server)
   {
       $defaultConfig = base_path().'/resources/rules/default.sing-box.json';
       $customConfig = base_path().'/resources/rules/custom.sing-box.json';

       if (File::exists($customConfig)) {
           $configContent = file_get_contents($customConfig);
           $config = json_decode($configContent, true);
       } else {
           $configContent = file_get_contents($defaultConfig);
           $config = json_decode($configContent, true);
       }
       $outbounds = $config['outbounds'];
       $proxies = [];
       foreach ($server as $item) {
           if ($item['type'] === 'shadowsocks') {
               $ssConfig = SingBoxBuildProxy::buildShadowsocks( $item);
               $proxies[] = $ssConfig;
           }
           if ($item['type'] === 'trojan') {
               $trojanConfig =  SingBoxBuildProxy::buildTrojan($item);
               $proxies[] = $trojanConfig;
           }
           if ($item['type'] === 'v2ray') {
               if ($item['vless'] == 1){
                   $vlessConfig =  SingBoxBuildProxy::buildVless($item);
                   $proxies[] = $vlessConfig;
               } else {
                   $vmess = SingBoxBuildProxy::buildVmess($item);
                   $proxies[] = $vmess;
               }

           }

       }
       return $this->updateConfigWithProxies($user,$config, $proxies);
   }

    function  updateConfigWithProxies(User $user,$config, $proxies) {

         $uri = "到期时间:{$user->expired_at}";
        // 定义地区及其对应的正则表达式
        $regions = [
            "hk" => '/香港/',
            "us" => '/美国/',
            "tw" => '/台湾/',
            "jp" => '/日本/',

        ];

        $usedTags = [];
        $regionTags = [];

//        $upload = flowAutoShow($user->u);
//        $download = flowAutoShow($user->d);
//        $totalTraffic = flowAutoShow($user->transfer_enable);

        $userConfig=  [
            'tag' => $uri,
            'type' => 'shadowsocks',
            'server' => "dudu02.ddnsguru.com",
            'server_port' => 13223,
            'password' => "2yYbPmksa221233",
            'method' => "aes-128-gcm",
        ];

        // 先创建 "proxy" 组并添加到配置的最前面
        $proxyOutbound = $this->buildOutbound("proxy", "selector", "", []);
        array_unshift($config['outbounds'], $proxyOutbound);

        // 创建每个地区的代理组
//        foreach ($regions as $regionTag => $pattern) {
//            $tags = $this->buildTags($proxies, $pattern);
//            $this->updateOrAddOutbound($config['outbounds'], $this->buildOutbound($regionTag, "selector", "", $tags));
//            $usedTags = array_merge($usedTags, $tags);
//            $regionTags[] = $regionTag;
//        }

        // 创建 "其他" 代理组
//        $allTags = array_column($proxies, 'tag');
//        $otherTags = array_diff($allTags, $usedTags);
//        $this->updateOrAddOutbound($config['outbounds'], $this->buildOutbound("other", "selector", "", $otherTags));
//        $regionTags[] = "other";
//        $this->updateOrAddOutbound($config['outbounds'],$this->buildOutbound("dns", "selector", "", $this->buildTags($proxies,"")));

//        $this->updateOrAddOutbound($config['outbounds'],$this->buildOutbound("用户中心", "selector", "", [$uri]));
        $this->updateOrAddOutbound($config['outbounds'], $userConfig);
        foreach ($proxies as $proxy){
            $regionTags[]  = $proxy["tag"];
        }
        $usedCus = array_merge($regionTags, [$uri]);
//        // 更新 "proxy" 组，包含所有地区和其他代理组的 tag
        $config['outbounds'][0]['outbounds'] = $usedCus;
        //$config['outbounds'][0]['outbounds'] = ;
        // 将所有 $proxies 加入到 $config['outbounds']
        foreach ($proxies as $proxy) {
            $this->updateOrAddOutbound($config['outbounds'], $proxy);
        }


        // 返回更新后的配置 JSON 字符串
        return json_encode($config, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
    }


    function buildOutbound($tag, $type, $default, $outbounds) {
       if ($type === "urltest")
       {
           return [
               "tag" => $tag,
               "type" => $type,
               "outbounds" => array_values($outbounds)
           ];
       }
        return [
            "tag" => $tag,
            "type" => $type,
            "default" => $default ,
            "outbounds" => array_values($outbounds)
        ];
    }

    function updateOrAddOutbound(&$outbounds, $newOutbound) {
        $found = false;
        foreach ($outbounds as &$outbound) {
            if ($outbound['tag'] == $newOutbound['tag']) {
                $outbound = $newOutbound;
                $found = true;
                break;
            }
        }
        if (!$found) {
            $outbounds[] = $newOutbound;
        }
    }

    function buildTags($proxies, $pattern = '') {
        if (empty($pattern)) {
            // 如果没有提供正则表达式模式，返回所有代理的 tag 列表
            return array_column($proxies, 'tag');
        }

        // 使用正则表达式筛选代理
        $filteredProxies = array_filter($proxies, function($proxy) use ($pattern) {
            return preg_match($pattern, $proxy['tag']);
        });

        // 提取代理的 tag 列表
        return array_column($filteredProxies, 'tag');
    }


    function buildTtype($proxies, $pattern = '') {
        if (empty($pattern)) {
            // 如果没有提供正则表达式模式，返回所有代理的 tag 列表
            return array_column($proxies, 'type');
        }

        // 使用正则表达式筛选代理
        $filteredProxies = array_filter($proxies, function($proxy) use ($pattern) {
            return $pattern == $proxy['type'];
        });


        // 提取代理的 tag 列表
        return array_column($filteredProxies, 'tag');
    }

}