package com.xcong.excoin.trade;
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import com.alibaba.fastjson.JSONObject;
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import com.xcong.excoin.modules.coin.entity.OrderCoinsEntity;
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import lombok.Data;
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import lombok.extern.slf4j.Slf4j;
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import java.math.BigDecimal;
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import java.util.LinkedList;
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/**
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* 盘口信息
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*/
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@Data
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@Slf4j
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public class TradePlate {
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private LinkedList<TradePlateItem> items;
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//最大深度
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private int maxDepth = 200;
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//方向 订单类型 1、买入2、卖出
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private int direction;
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private String symbol;
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public TradePlate(){
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}
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public TradePlate(String symbol,int direction) {
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this.direction = direction;
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this.symbol = symbol;
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items = new LinkedList<>();
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}
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public boolean add(OrderCoinsEntity exchangeOrder) {
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//log.info("add TradePlate order={}",exchangeOrder);
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synchronized (items) {
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int index = 0;
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if (exchangeOrder.getTradeType() == OrderCoinsEntity.TRADETYPE_MARKETPRICE) {
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return false;
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}
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if (exchangeOrder.getOrderType() != direction) {
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return false;
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}
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if (items.size() > 0) {
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for (index = 0; index < items.size(); index++) {
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TradePlateItem item = items.get(index);
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if ((exchangeOrder.getTradeType() == OrderCoinsEntity.ORDERTYPE_BUY && item.getPrice().compareTo(exchangeOrder.getEntrustPrice()) > 0)
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|| (exchangeOrder.getTradeType() == OrderCoinsEntity.ORDERTYPE_SELL && item.getPrice().compareTo(exchangeOrder.getEntrustPrice()) < 0)) {
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continue;
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} else if (item.getPrice().compareTo(exchangeOrder.getEntrustPrice()) == 0) {
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BigDecimal deltaAmount = exchangeOrder.getEntrustCnt().subtract(exchangeOrder.getDealCnt());
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item.setAmount(item.getAmount().add(deltaAmount));
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return true;
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} else {
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break;
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}
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}
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}
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if(index < maxDepth) {
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TradePlateItem newItem = new TradePlateItem();
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newItem.setAmount(exchangeOrder.getEntrustCnt().subtract(exchangeOrder.getDealCnt()));
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newItem.setPrice(exchangeOrder.getEntrustPrice());
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items.add(index, newItem);
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}
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}
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return true;
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}
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public void remove(OrderCoinsEntity order,BigDecimal amount) {
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synchronized (items) {
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//log.info("items>>init_size={},orderPrice={}",items.size(),order.getPrice());
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for (int index = 0; index < items.size(); index++) {
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TradePlateItem item = items.get(index);
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if (item.getPrice().compareTo(order.getEntrustPrice()) == 0) {
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item.setAmount(item.getAmount().subtract(amount));
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if (item.getAmount().compareTo(BigDecimal.ZERO) <= 0) {
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items.remove(index);
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}
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//log.info("items>>final_size={},itemAmount={},itemPrice={}",items.size(),item.getAmount(),item.getPrice());
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return;
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}
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}
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log.info("items>>return_size={}",items.size());
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}
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}
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public void remove(OrderCoinsEntity order){
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remove(order,order.getEntrustCnt().subtract(order.getDealCnt()));
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}
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public void setItems(LinkedList<TradePlateItem> items){
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this.items = items;
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}
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public BigDecimal getHighestPrice(){
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if(items.size() == 0) {
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return BigDecimal.ZERO;
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}
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if(direction == OrderCoinsEntity.ORDERTYPE_BUY){
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return items.getFirst().getPrice();
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}
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else{
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return items.getLast().getPrice();
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}
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}
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public int getDepth(){
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return items.size();
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}
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public BigDecimal getLowestPrice(){
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if(items.size() == 0) {
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return BigDecimal.ZERO;
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}
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if(direction == OrderCoinsEntity.ORDERTYPE_BUY){
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return items.getLast().getPrice();
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}
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else{
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return items.getFirst().getPrice();
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}
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}
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/**
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* 获取委托量最大的档位
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* @return
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*/
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public BigDecimal getMaxAmount(){
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if(items.size() == 0) {
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return BigDecimal.ZERO;
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}
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BigDecimal amount = BigDecimal.ZERO;
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for(TradePlateItem item:items){
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if(item.getAmount().compareTo(amount)>0){
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amount = item.getAmount();
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}
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}
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return amount;
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}
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/**
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* 获取委托量最小的档位
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* @return
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*/
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public BigDecimal getMinAmount(){
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if(items.size() == 0) {
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return BigDecimal.ZERO;
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}
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BigDecimal amount = items.getFirst().getAmount();
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for(TradePlateItem item:items){
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if(item.getAmount().compareTo(amount) < 0){
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amount = item.getAmount();
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}
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}
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return amount;
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}
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public JSONObject toJSON(){
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JSONObject json = new JSONObject();
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json.put("direction",direction);
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json.put("maxAmount",getMaxAmount());
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json.put("minAmount",getMinAmount());
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json.put("highestPrice",getHighestPrice());
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json.put("lowestPrice",getLowestPrice());
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json.put("symbol",getSymbol());
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json.put("items",items);
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return json;
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}
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public JSONObject toJSON(int limit){
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JSONObject json = new JSONObject();
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json.put("direction",direction);
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json.put("maxAmount",getMaxAmount());
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json.put("minAmount",getMinAmount());
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json.put("highestPrice",getHighestPrice());
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json.put("lowestPrice",getLowestPrice());
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json.put("symbol",getSymbol());
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json.put("items",items.size() > limit ? items.subList(0,limit) : items);
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return json;
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}
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}
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