<?php

declare(strict_types=1);

namespace App\Services;
use Illuminate\Support\Str;

class FreenodeHelperService
{
    public static function tokenToday()
    {
        $sDate   = date('Ymd');
        $sSuffix = "nodes";
        $sRawKey = $sDate . $sSuffix;
        $sUniqueToken = hash_hmac('sha256', $sRawKey, 'wocaonide');
        $sShortToken = Str::substr($sUniqueToken, 0, 16);
        
        return $sShortToken;
    }
    
    public static function urlFeedToday($sSiteCodeShort, $sClient)
    {
        $sToken = self::tokenToday();
        $sFileExt = self::clientToExt($sClient);
        
        $sFeedUrl = config("path.url_nodehub_base")."/".$sSiteCodeShort."/".$sToken."/".date("Ymd")."-".$sClient.$sFileExt;
        return $sFeedUrl;
    }
    
    public static function urlFeedToday_allClient($sSiteCodeShort)
    {
        $cClient = self::getClients();
        
        $a = [];
        foreach ($cClient as $sClient) {
            $a[$sClient] = self::urlFeedToday($sSiteCodeShort, $sClient);
        }
        
        $r = [
            "code"  => 200,
            "data"  => $a
        ];
        
        return $r;
    }
    
    // 应该是没用上的，按理应该有code和groupcode映射
    public static function getClients()
    {
        $aClients = [
            "clash",
            "v2ray",
            "singbox",
        ];
        
        return $aClients;
    }
    
    public static function clientToExt($sClient)
    {
        switch ($sClient) {
            case "v2ray":
                $sExt = ".txt";
                break;
            case "clash":
                $sExt = ".yaml";
                break;
            default:
                $sExt = ".txt";
                break;
        }
        
        return $sExt;
    }
    
}