<?php

namespace app\api\logic;


use app\common\model\ProductTeac;
use fast\Http;
use think\Loader;
use Exception;
use finfo;
use think\Cache;
use fast\Asset;
use think\Log;
use think\Lang;
use app\common\model\LedgerTeacChangeModel;
use app\common\model\LedgerTokenChangeModel;
/**
 * Teac交易
 */
class TeacLogin
{
    
     
    /**
     * 发布求购出售信息
    */
    public static  function setCreateTrade(int $uid, float $price, int $stock, int $typeId, float $frozen):object
    {
        $rows = ProductTeac::where('user_id', $uid)->where('type_id', $typeId)->where('status', ProductTeac::Normal)->find();
        if($rows)  throw new Exception(__("你有未完成的求购订单、不能重复发布"));

        //添加订单信息
        return ProductTeac::setUserCreateOrder($uid, $typeId, $price, $stock, $frozen);
    }

    /**
     * 购买出售
     * @$uid  用户人id
     * @$fromUid  来源订单id
     */
    public static function setCreateSellOrder(int $uid, int $fromUid, float $chabao, int $num, float $fee)
    {

        $ledgerWalletModel = Loader::model('LedgerWalletModel');
        $total_price = bcmul($chabao, $num, 2); //总价
        $fee = bcmul($total_price, $fee, 2); //手续费

        //扣除用户茶宝
        $ledgerWalletModel->changeWalletAccount($uid, Asset::TOKEN, -$total_price, LedgerTokenChangeModel::BuySellg, $fromUid);

        //添加用户Teac
        $ledgerWalletModel->changeWalletAccount($uid, Asset::TEAC, $num, LedgerTokenChangeModel::BuySellg, $fromUid);


        //添加来源茶宝
        $ledgerWalletModel->changeWalletAccount($fromUid, Asset::TOKEN, bcsub($total_price, $fee, 2), LedgerTokenChangeModel::BuySellg, $uid);

        return true;
    }


    /**
     * 求购出售
     * @$uid  用户人id
     * @$fromUid  来源订单id
     */
    public static function setCreateBuyingOrder(int $uid, int $fromUid, float $chabao, int $num, float $fee)
    {

        $ledgerWalletModel = Loader::model('LedgerWalletModel');
        $total_price = bcmul($chabao, $num, 2); //总价
        $fee = bcmul($total_price, $fee, 2); //手续费

        //添加用户茶宝
        $ledgerWalletModel->changeWalletAccount($uid, Asset::TOKEN, $total_price, LedgerTokenChangeModel::BuySellg, $fromUid);

        //扣除用户Teac
        $ledgerWalletModel->changeWalletAccount($uid, Asset::TEAC, $num, LedgerTokenChangeModel::BuySellg, $fromUid);

        //扣除来源茶宝
        $ledgerWalletModel->changeWalletAccount($fromUid, Asset::TOKEN, bcsub($total_price, $fee, 2), LedgerTokenChangeModel::BuySellg, $uid);
        return true;
    }

      /**
       * 根据时间戳获取最近的区块高度     
       * api接口返回数据格式
       * @param $orderInfo
       * @return array|string
       */
      public function getBlockNoByTime($time):array
      {
        if(!Cache::has('block_' . $time)){
            if (empty($time)) {
                return _error('时间戳不能为空');
            }

            //https://api.bscscan.com/api?module=block&action=getblocknobytime&timestamp=1601510400&closest=before&apikey=YourApiKeyToken

            $url = "https://api.bscscan.com/api?module=block&action=getblocknobytime&";
            $url .= "&closest=before";//closest 值还有个参数 after 控制返回接近时间戳之前还是之后的区块高度
            $url .= "&apikey=" . $this->bsc_api_key;
            $url .= "&timestamp=" . $time;
            dump($url);
            $body = Http::get($url);
            if (empty($body)) {
                return _error('获取区块高度api返回内容为空');
            }
            // 转成数组
            $rsArr = json_decode($body, true);
            if (empty($rsArr) || !is_array($rsArr)) {
                return _error('获取区块高度api返回数据异常，json转换失败');
            }

            if ($rsArr['status'] != '1') {
                return _error($rsArr['message'] . ' -- ' . $rsArr['result']);
            }


            Cache::set('block_' . $time, _success($rsArr['result']), 3600);
            }
            //获取开始预约前的区块高度
            return Cache::get('block_' . $time);
      }

      public function getBlcokNoByCache($time){
            if(!Cache::has('block')){
                  $get_block = (new BscApi())->getBlockNoByTime($start_time);
                  if($get_block['code'] == 0){
                  Log::info($get_block['msg'] . date('Y-m-d H:i:s'));
                  dump('获取区块高度有误');
                  dump($get_block);
                  return;
                  }
                  Cache::set('block', $get_block['data'], 3600);
            }
            //获取开始预约前的区块高度
            $start_block = Cache::get('block');
      }

    
}