package com.xcong.excoin.utils;
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import com.xcong.excoin.modules.member.entity.MemberEntity;
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import com.xcong.excoin.modules.platform.entity.PlatformTradeSettingEntity;
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import lombok.extern.slf4j.Slf4j;
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import java.math.BigDecimal;
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/**
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* @author helius
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*/
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@Slf4j
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public class CalculateUtil {
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/**
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* 计算预估强平价
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*
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* @param bondAmount 保证金
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* @param openPrice 开仓价
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* @param symbolSkuNumber 张数
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* @param lotNumber 规格
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* @param type 1:买多2：卖空
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* @return
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*/
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public static BigDecimal getForceSetPrice(BigDecimal bondAmount, BigDecimal openPrice, int symbolSkuNumber, BigDecimal lotNumber,
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int type, MemberEntity member) {
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CacheSettingUtils cacheSettingUtils = SpringContextHolder.getBean(CacheSettingUtils.class);
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BigDecimal forcePrice = BigDecimal.ZERO;
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BigDecimal money = bondAmount.divide(new BigDecimal(symbolSkuNumber).multiply(lotNumber), 8, BigDecimal.ROUND_DOWN);
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//卖空
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if (type == 2) {
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forcePrice = money.add(openPrice);
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if (member.getIsForce() == 1) {
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//预估强平价 = 预估强平价-预估强平价*系数
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forcePrice = forcePrice.subtract(forcePrice.multiply(member.getForceParam() == null ? BigDecimal.ZERO : member.getForceParam()));
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}
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} else {//开多
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forcePrice = openPrice.subtract(money);
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if (member.getIsForce() == 1) {
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//预估强平价 = 预估强平价-预估强平价*系数
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forcePrice = forcePrice.add(forcePrice.multiply(member.getForceParam() == null ? BigDecimal.ZERO : member.getForceParam()));
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}
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}
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if (forcePrice.compareTo(BigDecimal.ZERO) < 0) {
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forcePrice = BigDecimal.ZERO;
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}
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return forcePrice;
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}
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/**
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* 计算保证金 -- 建仓价*规格*手数*(1/杠杆倍率)
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*
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* @param openingPrice 开仓价
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* @param lotNumber 规格
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* @param symbolCnt 张数
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* @param leverRatio 杠杆倍率
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* @return
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*/
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public static BigDecimal getBondAmount(BigDecimal openingPrice, BigDecimal lotNumber, Integer symbolCnt, Integer leverRatio) {
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return openingPrice.multiply(lotNumber).multiply(new BigDecimal(symbolCnt))
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.multiply(BigDecimal.ONE.divide(new BigDecimal(leverRatio)))
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.setScale(8, BigDecimal.ROUND_DOWN);
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}
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}
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