<?php
namespace app\service\byte_dance;
use GuzzleHttp\Client;

class ByteDance{
    public static function accessToken(){
        return self::single(ByteDanceAccessToken::class)
            ->setAppId(self::appId())
            ->setAppSecret(self::appSecret())
            ->get();
    }

    private static function single($class){
        static $container=[];
        if (!isset($container[$class])){
            $container[$class]=new $class;
        }
        return $container[$class];
    }

    public static function appId(){
        return config('site.byte_dance_mapp_appId');
    }
    public static function appSecret(){
        return config('site.byte_dance_mapp_appSecret');
    }
    public static function appIdTwo(){
        return config('site.byte_dance_mapp_two_appld');
    }
    public static function appSecretTwo(){
        return config('site.byte_dance _mapp_two_appSecret');
    }
    public static function httpGet($url){
        $request=(new Client)
            ->get($url);
        $requestData = json_decode($request->getBody()->getContents(),true);
        ByteDance::throwIf(!empty($requestData['err_no']),$requestData['err_tips']);
        return $requestData['data'];
    }
    public static function httpPost($url,$params,$header=[],$getData=true){
        $request=(new Client)
            ->request('post',$url,[
                'json'=>$params,
                'headers'=>$header
            ]);
        $requestData = json_decode($request->getBody()->getContents(),true);
        if(!$getData){
            return $requestData;
        }
        ByteDance::throwIf(!empty($requestData['err_no']),$requestData['err_tips']);
        return $requestData['data']??[];
    }
    public static function throwIf($condition,$msg){
        if($condition){
            throw new ByteDanceException($msg);
        }
    }

    public static function sign($map) {
        $rList = array();
        foreach($map as $k =>$v) {
            if ($k == "other_settle_params" || $k == "app_id" || $k == "sign" || $k == "thirdparty_id")
                continue;
            $value = trim(strval($v));
            $len = strlen($value);
            if ($len > 1 && substr($value, 0,1)=="\"" && substr($value,$len, $len-1)=="\"")
                $value = substr($value,1, $len-1);
            $value = trim($value);
            if ($value == "" || $value == "null")
                continue;
            array_push($rList, $value);
        }
        array_push($rList, config('site.byte_dance_mapp_pay_salt'));
        sort($rList, 2);
        return md5(implode('&', $rList));
    }
}