RWACha-API/application/api/controller/Offline.php

<?php

namespace app\api\controller;

use app\common\controller\Api;
use app\common\model\LedgerWalletModel;
use app\common\model\OfflineRechargeRecordModel;
use app\common\model\OfflineWithdrawRecordModel;
use app\common\model\LedgerTokenChangeModel;
use app\common\model\UserModel;
use fast\Action;
use fast\Asset;
use fast\Random;
use think\Config;
use think\Db;
use Exception;

/**
 * 会员接口
 */
class Offline extends Api
{

    public function withdrawFee()
    { 
        $resp   = [
            'describe'            => config('withdraw_desc'), //提现说明
            'usdt'                => '0', // 系统余额(U)
            'withdraw_min_amount' => getConfig('withdraw_min_amount'), // 最低提现U数量
            'withdrawal_next_fee' => getConfig('withdrawal_next_fee'), // 600以下手续费
            'withdrawal_up_fee'   => getConfig('withdrawal_up_fee')    // 600以上手续费比例
        ];
        $this->success('', $resp);
    }

    /**
     * 提现
     * @return void
     */
    public function withdrawCash()
    {
        $amount = $this->request->post('amount'); // 金额
        $sign = $this->request->post('sign'); // 签名信
        $address = $this->request->post('to_address'); // 地址
        if(empty($sign)  || empty($address)){
            $this->error(__('Invalid parameters'));
        }
        $min    = getConfig('withdraw_min_amount');
        if ($amount <= 0) {
            $this->error(__('The withdrawal amount must be greater than 0'));
        } else if ($amount < $min) {
            $this->error(__('The withdrawal amount cannot be less than') . $min);
        }
        // 扣除手续费后
        $rate = getConfig('convert_rate');
        if($amount < config('withdraw_in_amount')){
            $feeRate   = getConfig('withdrawal_next_fee');
            $real      = bcsub($amount, $feeRate,6); //扣除茶宝之后金额
            $usdt      = bcdiv($real, $rate, 6); // 折合转换 U = 1
            $fee       = $feeRate.'茶宝';
        } else{
            $feeRate= getConfig('withdrawal_up_fee');
            $real   = bcmul($amount, bcsub(1, $feeRate, 6), 6); // 折合转换 U = 1
            $usdt   = bcdiv($real, $rate, 6); // 扣除手续费后
            $fee    = ($feeRate*100).'%';
        }
        $uid = $this->auth->getTokenUserID();
        // 用户信息
        $user = (new UserModel())->getById($uid);
        if($user['is_withdraw']){
            $this->error(__('Withdrawal failed, please contact customer service.'));
        }
        // 验签
        $signMsg = "withdraw"; // 与前端约定的固定值
        if (!checkSign($signMsg, $sign, $address)) {
            $this->error(__('Signature verification failed'));
        }
        // 启动事务
        Db::startTrans();
        try {
            // 更新USDT和账变
            (new LedgerWalletModel())->changeWalletAccount($uid, Asset::TOKEN, -$amount, LedgerTokenChangeModel::Withdraw);

            // 创建提现记录
            $txHash = Random::uuid();
            (new OfflineWithdrawRecordModel())->createWithdraw($txHash, $uid, $amount, $real, $address, 'usdt', $usdt, $rate, $fee);

            // 提交事务
            Db::commit();
        } catch (Exception $e) {
            // 回滚事务
            Db::rollback();
            $this->error( $e->getMessage());
        }
        $this->success('ok');
    }

    /**
     * 提现地址
     * @return void
     */
    public function withdrawList()
    {
        $where     = ['user_id' => $this->auth->getTokenUserID()];
        $paginator = (new OfflineWithdrawRecordModel)->where($where)->order('id DESC')->paginate($this->pageSize);
        $this->success('', $this->buildResp($paginator->total(), $paginator->currentPage(), $paginator->items()));
    }


    /**
     * 充值记录
     * @return void
     */
    public function rechargeList()
    {
        $where     = ['user_id' => $this->auth->getTokenUserID()];
        $paginator = (new OfflineRechargeRecordModel)->where($where)->order('id DESC')->paginate($this->pageSize);
        $this->success('', $this->buildResp($paginator->total(), $paginator->currentPage(), $paginator->items()));
    }

    /**
     * 获取签名-带连接符号
     * @return string
     */
    protected  static function getSignKey(array $arr, string $secretKey)//: string
    {
        ksort($arr);
        $arr['apiSecret'] = $secretKey;
        $string = '';
        foreach ($arr as $key => $value)
            $string .= '&'.$key .'='.$value;
        return ltrim($string, '&');
    }




}