package com.xcong.excoin.modules.gateApi.wsHandler.handler;
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import com.alibaba.fastjson.JSONArray;
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import com.alibaba.fastjson.JSONObject;
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import com.xcong.excoin.modules.gateApi.GateGridTradeService;
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import com.xcong.excoin.modules.gateApi.wsHandler.AbstractPrivateChannelHandler;
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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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* 仓位频道处理器。
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*
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* <h3>数据用途</h3>
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* 监控仓位数量（size）。当 size 从有变为 0 时，表示该方向被止盈条件单平仓，
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* 触发补仓（reopenLongPosition / reopenShortPosition）。
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*
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* <h3>推送字段</h3>
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* contract, mode（dual_long / dual_short）, size（正=持有，0=无仓位）, entry_price
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*
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* <h3>注意</h3>
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* 双向持仓模式下空头 size 为负数，使用 {@code size.abs()} 判断是否有仓位。
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* 累计盈亏不由本频道计算，而是由 {@link PositionClosesChannelHandler} 独立处理。
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*
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* @author Administrator
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*/
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@Slf4j
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public class PositionsChannelHandler extends AbstractPrivateChannelHandler {
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private static final String CHANNEL_NAME = "futures.positions";
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public PositionsChannelHandler(String apiKey, String apiSecret,
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String contract,
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GateGridTradeService gridTradeService) {
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super(CHANNEL_NAME, apiKey, apiSecret, contract, gridTradeService);
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}
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@Override
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public boolean handleMessage(JSONObject response) {
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if (!CHANNEL_NAME.equals(response.getString("channel"))) return false;
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try {
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JSONArray resultArray = response.getJSONArray("result");
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if (resultArray == null || resultArray.isEmpty()) return true;
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for (int i = 0; i < resultArray.size(); i++) {
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JSONObject pos = resultArray.getJSONObject(i);
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if (!getContract().equals(pos.getString("contract"))) continue;
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String mode = pos.getString("mode");
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BigDecimal size = new BigDecimal(pos.getString("size"));
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BigDecimal entryPrice = new BigDecimal(pos.getString("entry_price"));
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log.info("[{}] mode:{}, size:{}, entry:{}", CHANNEL_NAME, mode, size, entryPrice);
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if (getGridTradeService() != null) {
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getGridTradeService().onPositionUpdate(getContract(), mode, size, entryPrice);
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}
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}
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} catch (Exception e) { log.error("[{}] handle fail", CHANNEL_NAME, e); }
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return true;
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}
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}
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