package com.xcong.excoin.modules.okxApi;

import cn.hutool.core.util.StrUtil;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.xcong.excoin.utils.dingtalk.DingTalkUtils;
import lombok.extern.slf4j.Slf4j;

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.*;

/**
 * OKX 网格交易策略引擎 — 多空对冲网格。
 *
 * <h3>策略原理</h3>
 * 以空仓基底入场价（shortBaseEntryPrice）为价格基准，向上/向下各生成一个价格网格队列。
 * 价格触发网格层级时挂条件单，成交后自动挂止盈单。每笔止盈盈利 = step - minTick。
 *
 * <h3>与 GateGridTradeService 的关系</h3>
 * 策略逻辑完全一致，仅 API 层（REST/WS/签名）替换为 OKX 实现。
 * GridElement 和 TraderParam 从 gateApi 包复用（交易所无关的数据模型）。
 *
 * <h3>完整生命周期</h3>
 * <pre>
 *   init() → startGrid() → WAITING_KLINE
 *     ↓
 *   onKline(首根K线) → OPENING → 异步市价双开基底（开多+开空）
 *     ↓
 *   onPositionUpdate() → 基底成交 → baseLongOpened && baseShortOpened
 *     ↓
 *   tryGenerateQueues()
 *     ├── generateShortQueue()   ← 空仓价格队列（降序，从 shortBaseEntryPrice-step 向下）
 *     ├── generateLongQueue()    ← 多仓价格队列（升序，从 shortBaseEntryPrice+step 向上）
 *     ├── updateGridElements()   ← 构建 GridElement 列表 + TraderParam + 全局索引
 *     ├── 挂基座止盈单（ID=0 的 long/short takeProfit）
 *     └── 挂初始条件单（up=-1 多单, down=1 空单）
 *     ↓
 *   state = ACTIVE
 *     ↓
 *   onKline() → processLongGrid() + processShortGrid()
 *     ├── 匹配队列元素 → 队列补偿 → 保证金检查
 *     ├── 首元素方向：挂条件开仓单 → 订单ID + GridElement状态同步
 *     └── 反向守卫：在 downGrid 位置挂对向单
 *     ↓
 *   onAutoOrder() ← orders-algo WS 推送
 *     ├── 匹配止盈单ID → 清空止盈状态（已成交）
 *     └── 匹配挂单ID → 挂止盈条件单 → 止盈ID + GridElement状态同步
 * </pre>
 *
 * @author Administrator
 */
@Slf4j
public class OkxGridTradeService {

    public enum StrategyState {
        WAITING_KLINE, OPENING, ACTIVE, STOPPED
    }

    /** 止盈条件单 order_type：平多仓 */
    private static final String ORDER_TYPE_CLOSE_LONG = "plan-close-long-position";
    /** 止盈条件单 order_type：平空仓 */
    private static final String ORDER_TYPE_CLOSE_SHORT = "plan-close-short-position";

    private final OkxConfig config;
    private final OkxTradeExecutor executor;

    private volatile StrategyState state = StrategyState.WAITING_KLINE;

    /** 空仓价格队列，降序排列（大→小），容量 gridQueueSize */
    private final List<BigDecimal> shortPriceQueue = Collections.synchronizedList(new ArrayList<>());
    /** 多仓价格队列，升序排列（小→大），容量 gridQueueSize */
    private final List<BigDecimal> longPriceQueue = Collections.synchronizedList(new ArrayList<>());
    private final List<BigDecimal> totalLongPriceQueue = Collections.synchronizedList(new ArrayList<>());
    private final List<BigDecimal> totalShortPriceQueue = Collections.synchronizedList(new ArrayList<>());

    /** 当前多仓条件单映射 */
    private final Map<String, BigDecimal> currentLongOrderIds = Collections.synchronizedMap(new LinkedHashMap<>());
    /** 当前空仓条件单映射 */
    private final Map<String, BigDecimal> currentShortOrderIds = Collections.synchronizedMap(new LinkedHashMap<>());

    /** 基底空头入场价 */
    private BigDecimal shortBaseEntryPrice;
    /** 基底多头入场价 */
    private BigDecimal longBaseEntryPrice;
    /** 基底多头是否已开 */
    private volatile boolean baseLongOpened = false;
    /** 基底空头是否已开 */
    private volatile boolean baseShortOpened = false;

    /** 空头是否活跃 */
    private volatile boolean shortActive = false;
    /** 多头是否活跃 */
    private volatile boolean longActive = false;

    /** 多头累计止损张数 */
    private volatile int accumulatedLongLossCount = 0;
    /** 空头累计止损张数 */
    private volatile int accumulatedShortLossCount = 0;

    private volatile BigDecimal lastKlinePrice;
    private volatile BigDecimal markPrice = BigDecimal.ZERO;
    private volatile BigDecimal cumulativePnl = BigDecimal.ZERO;
    private volatile BigDecimal unrealizedPnl = BigDecimal.ZERO;
    private volatile BigDecimal longEntryPrice = BigDecimal.ZERO;
    private volatile BigDecimal shortEntryPrice = BigDecimal.ZERO;
    private volatile BigDecimal longPositionSize = BigDecimal.ZERO;
    private volatile BigDecimal shortPositionSize = BigDecimal.ZERO;
    private volatile BigDecimal initialPrincipal = BigDecimal.ZERO;
    private volatile OkxKlineWebSocketClient wsClient;

    public OkxGridTradeService(OkxConfig config) {
        this.config = config;
        this.executor = new OkxTradeExecutor(config);
    }

    // ---- 仓位模式（替代 Gate 的 Position.ModeEnum）----

    /** OKX 持仓方向枚举 */
    public enum OkxPosMode { LONG, SHORT }

    /** 持仓查询结果 */
    static class OkxPositionInfo {
        String size;
        String entryPrice;
    }

    // ---- 初始化 ----

    /**
     * 初始化策略环境：获取账户信息 → 切双向持仓 → 清旧条件单 → 平仓 → 设杠杆。
     */
    public void init() {
        try {
            JSONObject account = executorGet("/api/v5/account/balance");
            JSONArray dataArr = account.getJSONArray("data");
            if (dataArr != null && !dataArr.isEmpty()) {
                JSONArray details = dataArr.getJSONObject(0).getJSONArray("details");
                if (details != null) {
                    for (int i = 0; i < details.size(); i++) {
                        JSONObject currency = details.getJSONObject(i);
                        if ("USDT".equals(currency.getString("ccy"))) {
                            this.initialPrincipal = currency.getBigDecimal("eq");
                            log.info("[OKX] 初始本金(USDT余额): {}", initialPrincipal);
                            break;
                        }
                    }
                }
            }

            // 设置双向持仓模式
            JSONObject posModeBody = new JSONObject();
            posModeBody.put("posMode", config.getPositionMode());
            executorPost("/api/v5/account/set-position-mode", posModeBody.toJSONString());
            log.info("[OKX] 持仓模式已设为: {}", config.getPositionMode());

            // 设置杠杆
            JSONObject levBody = new JSONObject();
            levBody.put("instId", config.getContract());
            levBody.put("lever", config.getLeverage());
            levBody.put("mgnMode", config.getMarginMode());
            executorPost("/api/v5/account/set-leverage", levBody.toJSONString());
            log.info("[OKX] 杠杆已设为: {}x {}", config.getLeverage(), config.getMarginMode());

            executor.cancelAllPriceTriggeredOrders();
            log.info("[OKX] 旧条件单已清除");
            closeExistingPositions();

            log.info("[OKX] 初始化完成");
        } catch (Exception e) {
            log.error("[OKX] 初始化失败", e);
        }
    }

    /**
     * 平掉当前合约的所有已有仓位。
     */
    private void closeExistingPositions() {
        try {
            JSONObject resp = executorGet("/api/v5/account/positions?instType=SWAP");
            JSONArray data = resp.getJSONArray("data");
            if (data == null || data.isEmpty()) {
                log.info("[OKX] 无已有仓位");
                return;
            }
            for (int i = 0; i < data.size(); i++) {
                JSONObject pos = data.getJSONObject(i);
                String instId = pos.getString("instId");
                if (instId == null || !instId.equals(config.getContract())) {
                    continue;
                }
                String posVal = pos.getString("pos");
                if (posVal == null || "0".equals(posVal)) {
                    continue;
                }
                String posSide = pos.getString("posSide");
                String side = "long".equals(posSide) ? "sell" : "buy";

                JSONObject body = new JSONObject();
                body.put("instId", config.getContract());
                body.put("tdMode", "cross");
                body.put("side", side);
                body.put("posSide", posSide);
                body.put("ordType", "market");
                body.put("sz", posVal);
                executorPost("/api/v5/trade/order", body.toJSONString());
                log.info("[OKX] 平已有仓位, posSide:{}, sz:{}", posSide, posVal);
            }
        } catch (Exception e) {
            log.warn("[OKX] 平仓位异常", e);
        }
    }

    // ---- 启动/停止 ----

    public void startGrid() {
        if (state != StrategyState.WAITING_KLINE && state != StrategyState.STOPPED) {
            log.warn("[OKX] 策略已在运行中, state:{}", state);
            return;
        }
        state = StrategyState.WAITING_KLINE;
        cumulativePnl = BigDecimal.ZERO;
        unrealizedPnl = BigDecimal.ZERO;
        markPrice = BigDecimal.ZERO;
        longEntryPrice = BigDecimal.ZERO;
        shortEntryPrice = BigDecimal.ZERO;
        longPositionSize = BigDecimal.ZERO;
        shortPositionSize = BigDecimal.ZERO;
        baseLongOpened = false;
        baseShortOpened = false;
        longActive = false;
        shortActive = false;
        accumulatedLongLossCount = 0;
        accumulatedShortLossCount = 0;
        shortPriceQueue.clear();
        longPriceQueue.clear();
        totalShortPriceQueue.clear();
        totalLongPriceQueue.clear();
        currentLongOrderIds.clear();
        currentShortOrderIds.clear();
        refreshInitialPrincipal();
        log.info("[OKX] 网格策略已启动, 当前本金: {} USDT", initialPrincipal);
    }

    private void refreshInitialPrincipal() {
        try {
            JSONObject account = executorGet("/api/v5/account/balance");
            JSONArray dataArr = account.getJSONArray("data");
            if (dataArr != null && !dataArr.isEmpty()) {
                JSONArray details = dataArr.getJSONObject(0).getJSONArray("details");
                if (details != null) {
                    for (int i = 0; i < details.size(); i++) {
                        JSONObject currency = details.getJSONObject(i);
                        if ("USDT".equals(currency.getString("ccy"))) {
                            this.initialPrincipal = currency.getBigDecimal("eq");
                            break;
                        }
                    }
                }
            }
        } catch (Exception e) {
            log.warn("[OKX] 获取初始化本金失败，使用旧值: {}", initialPrincipal);
        }
    }

    public void stopGrid() {
        state = StrategyState.STOPPED;
        executor.cancelAllPriceTriggeredOrders();
        closeExistingPositions();
        executor.shutdown();
        log.info("[OKX] 策略已停止, 累计盈亏: {}", cumulativePnl);
    }

    // ---- K线回调 ----

    public void onKline(BigDecimal closePrice) {
        lastKlinePrice = closePrice;

        if (state == StrategyState.WAITING_KLINE) {
            if (wsClient == null || !wsClient.areAllSubscribed()) {
                return;
            }
            state = StrategyState.OPENING;
            String size = config.getBaseQuantity();
            log.info("[OKX] 首根K线到达，开基底仓位 多空各{}张...", size);
            executor.openLong(size, (orderId) -> {
                TraderParam baseLongTp = TraderParam.builder()
                        .entryOrderId(orderId)
                        .build();
                config.setBaseLongTraderParam(baseLongTp);
            }, null);
            executor.openShort(size, (orderId) -> {
                TraderParam baseShortTp = TraderParam.builder()
                        .entryOrderId(orderId)
                        .build();
                config.setBaseShortTraderParam(baseShortTp);
            }, null);
            return;
        }

        // OPENING 状态下若 WS 仓位已确认但 REST 回调尚未完成，等标记价格推送时重试队列生成
        if (state == StrategyState.OPENING &&
                baseLongOpened && baseShortOpened) {
            tryGenerateQueues();
        }

        if (state == StrategyState.ACTIVE &&
                !longActive &&
                longPositionSize.compareTo(BigDecimal.ZERO) == 0) {
            processShortGrid(closePrice);
        }

        if (state == StrategyState.ACTIVE &&
                !shortActive &&
                shortPositionSize.compareTo(BigDecimal.ZERO) == 0) {
            processLongGrid(closePrice);
        }
    }

    // ---- 仓位推送回调 ----

    /**
     * 仓位推送回调。由 PositionsOkxChannelHandler 调用。
     * direction 使用 TraderParam.Direction：LONG 表示多头，SHORT 表示空头。
     */
    public void onPositionUpdate(String contract, TraderParam.Direction direction, BigDecimal size,
                                  BigDecimal entryPrice) {
        if (state == StrategyState.STOPPED || state == StrategyState.WAITING_KLINE) {
            return;
        }

        boolean hasPosition = size.abs().compareTo(BigDecimal.ZERO) > 0;
        boolean isLong = (direction == TraderParam.Direction.LONG);

        if (state == StrategyState.OPENING) {
            if (isLong && hasPosition && !baseLongOpened) {
                longActive = true;
                longPositionSize = size;
                longEntryPrice = entryPrice;
                longBaseEntryPrice = entryPrice;
                baseLongOpened = true;
                log.info("[OKX] 基底多成交价: {}", longBaseEntryPrice);
                tryGenerateQueues();
            } else if (!isLong && hasPosition && !baseShortOpened) {
                shortActive = true;
                shortPositionSize = size.abs();
                shortEntryPrice = entryPrice;
                shortBaseEntryPrice = entryPrice;
                baseShortOpened = true;
                log.info("[OKX] 基底空成交价: {}", shortBaseEntryPrice);
                tryGenerateQueues();
            }
        }

        if (state == StrategyState.ACTIVE) {
            if (isLong) {
                if (hasPosition) {
                    longActive = true;
                    longPositionSize = size;
                    longEntryPrice = entryPrice;
                } else {
                    log.info("[OKX-0]多仓归零: {}", shortBaseEntryPrice);
                    longActive = false;
                    longPositionSize = BigDecimal.ZERO;
                    longEntryPrice = BigDecimal.ZERO;
                }
            } else {
                if (hasPosition) {
                    shortActive = true;
                    shortPositionSize = size.abs();
                    shortEntryPrice = entryPrice;
                } else {
                    log.info("[OKX-0]空仓归零: {}", shortBaseEntryPrice);
                    shortActive = false;
                    shortPositionSize = BigDecimal.ZERO;
                    shortEntryPrice = BigDecimal.ZERO;
                }
            }
        }

        if (state == StrategyState.ACTIVE && !shortActive && !longActive) {
            executor.cancelAllPriceTriggeredOrders();
            closeExistingPositions();
            state = StrategyState.STOPPED;
            executor.submitTask(() -> {
                try { Thread.sleep(3000); } catch (InterruptedException e) { Thread.currentThread().interrupt(); }
                startGrid();
            });
            log.info("[OKX] 重置策略");
        }
    }

    // ---- 平仓推送回调 ----

    /**
     * 平仓盈亏累加（OKX 目前没有独立的 position_closes 频道，
     * 盈亏信息可从 orders 频道或 REST API 获取，这里保留接口以备将来使用）。
     */
    public void onPositionClose(String contract, String side, BigDecimal pnl) {
        if (state == StrategyState.STOPPED) {
            return;
        }
        cumulativePnl = cumulativePnl.add(pnl);
        updateUnrealizedPnl();
        BigDecimal totalPnl = cumulativePnl.add(unrealizedPnl);
        log.info("[OKX] 已实现:{}, 未实现:{}, 合计:{}",
                cumulativePnl, unrealizedPnl, totalPnl);
        if (totalPnl.compareTo(config.getMaxLoss().negate()) <= 0) {
            String logMessage = StrUtil.format("[OKX] 已达亏损风险值(合计{}), 已实现:{}, 未实现:{}",
                    totalPnl, cumulativePnl, unrealizedPnl);
            log.info(logMessage);
            DingTalkUtils.getDefault().sendActionCard("风险提醒", logMessage, config.getApiKey(), "");
        }
    }

    // ---- 自动订单（条件单）状态变更回调 ----

    /**
     * 自动订单状态变更回调。由 OrderAlgoOkxChannelHandler 调用。
     */
    public void onAutoOrder(String orderId, String status, String reason, String orderType, String tradeId) {
        if (state == StrategyState.STOPPED) {
            return;
        }
        log.info("[OKX] 条件单状态变更, id:{}, status:{}, reason:{}, order_type:{}",
                orderId, status, reason, orderType);
        if (!"finished".equals(status)) {
            return;
        }

        // 多仓止盈触发
        GridElement longTpElem = GridElement.findByLongTakeProfitOrderId(orderId);
        if (longTpElem != null && StrUtil.isNotEmpty(tradeId) && !tradeId.equals("0")) {
            longTakeProfitTraderIdParam(longTpElem, null, false);
            log.info("[OKX] 多仓止盈触发 gridId:{}, orderId:{}", longTpElem.getId(), orderId);
            cancelFarthestLongStopLoss();
            checkLastTakeProfitAndRestart();
            return;
        }
        // 空仓止盈触发
        GridElement shortTpElem = GridElement.findByShortTakeProfitOrderId(orderId);
        if (shortTpElem != null && StrUtil.isNotEmpty(tradeId) && !tradeId.equals("0")) {
            shortTakeProfitTraderIdParam(shortTpElem, null, false);
            log.info("[OKX] 空仓止盈触发 gridId:{}, orderId:{}", shortTpElem.getId(), orderId);
            cancelFarthestShortStopLoss();
            checkLastTakeProfitAndRestart();
            return;
        }

        // 多仓止损触发
        GridElement longStopLossElem = GridElement.findByLongStopLossOrderId(orderId);
        if (longStopLossElem != null && StrUtil.isNotEmpty(tradeId) && !tradeId.equals("0")) {
            handleLongStopLossTriggered(longStopLossElem);
            return;
        }
        // 空仓止损触发
        GridElement shortStopLossElem = GridElement.findByShortStopLossOrderId(orderId);
        if (shortStopLossElem != null && StrUtil.isNotEmpty(tradeId) && !tradeId.equals("0")) {
            handleShortStopLossTriggered(shortStopLossElem);
            return;
        }

        // 空仓挂单成交
        GridElement shortGridElement = GridElement.findByShortOrderId(orderId);
        if (shortGridElement != null) {
            if (shortGridElement.isHasShortOrder() && StrUtil.isNotEmpty(tradeId) && !tradeId.equals("0")) {
                int filledQty = Integer.parseInt(shortGridElement.getShortTraderParam().getQuantity());
                shortEntryTraderIdParam(shortGridElement, null, false);
                cancelAllShortTakeProfitsAndStopLosses();
                int posSize = queryPositionSize(OkxPosMode.SHORT);
                extendShortStopLoss(posSize, shortGridElement.getId());
                accumulatedShortLossCount = 0;
                log.info("[OKX] 空单成交 gridId:{}, 当前持仓:{}张", filledQty, posSize);

                BigDecimal shortBaseQty = new BigDecimal(config.getBaseQuantity());
                BigDecimal shortGridQty = new BigDecimal(config.getQuantity());
                if (BigDecimal.valueOf(posSize).compareTo(shortBaseQty) > 0) {
                    BigDecimal shortExcess = BigDecimal.valueOf(posSize).subtract(shortBaseQty);
                    int shortExcessCount = shortExcess.divide(shortGridQty, 0, RoundingMode.DOWN).intValue();
                    for (int i = 0; i < shortExcessCount; i++) {
                        int tpGridId = shortGridElement.getId() - 2 - i;
                        if (i > 0) { tpGridId = tpGridId - 1; }
                        GridElement tpElem = GridElement.findById(tpGridId);
                        if (tpElem == null || tpElem.getShortTakeProfitOrderId() != null) {
                            continue;
                        }
                        BigDecimal tpPrice = tpElem.getGridPrice();
                        int finalTpGridId = tpGridId;
                        executor.placeTakeProfit(
                                tpPrice,
                                "close_short",
                                config.getQuantity(),
                                profitId -> {
                                    shortTakeProfitTraderIdParam(tpElem, profitId, true);
                                    log.info("[OKX] 空仓止盈挂单, gridId:{}, 触发价:{}, takeProfitId:{}",
                                            finalTpGridId, tpPrice, profitId);
                                }
                        );
                    }
                }
            }
        }
        // 多仓挂单成交
        GridElement longGridElement = GridElement.findByLongOrderId(orderId);
        if (longGridElement != null) {
            if (longGridElement.isHasLongOrder() && StrUtil.isNotEmpty(tradeId) && !tradeId.equals("0")) {
                int filledQty = Integer.parseInt(longGridElement.getLongTraderParam().getQuantity());
                longEntryTraderIdParam(longGridElement, null, false);
                cancelAllLongTakeProfitsAndStopLosses();
                int posSize = queryPositionSize(OkxPosMode.LONG);
                extendLongStopLoss(posSize, longGridElement.getId());
                accumulatedLongLossCount = 0;
                log.info("[OKX] 多单成交 gridId:{}, 当前持仓:{}张", filledQty, posSize);

                BigDecimal longBaseQty = new BigDecimal(config.getBaseQuantity());
                BigDecimal longGridQty = new BigDecimal(config.getQuantity());
                if (BigDecimal.valueOf(posSize).compareTo(longBaseQty) > 0) {
                    BigDecimal longExcess = BigDecimal.valueOf(posSize).subtract(longBaseQty);
                    int longExcessCount = longExcess.divide(longGridQty, 0, RoundingMode.DOWN).intValue();
                    for (int i = 0; i < longExcessCount; i++) {
                        int tpGridId = longGridElement.getId() + 2 + i;
                        if (i > 0) { tpGridId = tpGridId + 1; }
                        GridElement tpElem = GridElement.findById(tpGridId);
                        if (tpElem == null || tpElem.getLongTakeProfitOrderId() != null) {
                            continue;
                        }
                        BigDecimal tpPrice = tpElem.getGridPrice();
                        int finalTpGridId = tpGridId;
                        executor.placeTakeProfit(
                                tpPrice,
                                "close_long",
                                config.getQuantity(),
                                profitId -> {
                                    longTakeProfitTraderIdParam(tpElem, profitId, true);
                                    log.info("[OKX] 多仓止盈挂单, gridId:{}, 触发价:{}, takeProfitId:{}",
                                            finalTpGridId, tpPrice, profitId);
                                }
                        );
                    }
                }
            }
        }
    }

    // ========== REST 查询辅助 ==========

    private int queryPositionSize(OkxPosMode mode) {
        OkxPositionInfo p = queryPosition(mode);
        if (p != null) {
            return new BigDecimal(p.size).abs().intValue();
        }
        return 0;
    }

    private BigDecimal queryEntryPrice(OkxPosMode mode) {
        OkxPositionInfo p = queryPosition(mode);
        if (p != null && p.entryPrice != null) {
            return new BigDecimal(p.entryPrice);
        }
        return BigDecimal.ZERO;
    }

    private OkxPositionInfo queryPosition(OkxPosMode mode) {
        try {
            JSONObject resp = executorGet("/api/v5/account/positions?instType=SWAP");
            JSONArray data = resp.getJSONArray("data");
            if (data != null) {
                for (int i = 0; i < data.size(); i++) {
                    JSONObject p = data.getJSONObject(i);
                    if (config.getContract().equals(p.getString("instId"))
                            && mode.name().toLowerCase().equals(p.getString("posSide"))) {
                        OkxPositionInfo info = new OkxPositionInfo();
                        info.size = p.getString("pos");
                        info.entryPrice = p.getString("avgPx");
                        return info;
                    }
                }
            }
        } catch (Exception e) {
            log.warn("[OKX] 查询{}持仓失败", mode, e);
        }
        return null;
    }

    // ---- REST 快捷方法 ----

    private JSONObject executorGet(String path) throws Exception {
        return executor.okGet(path);
    }

    private JSONObject executorPost(String path, String body) throws Exception {
        return executor.okPost(path, body);
    }

    // ---- 网格队列处理 ----

    private void tryGenerateQueues() {
        if (baseLongOpened && baseShortOpened) {
            // 确保 openLong/openShort 的 REST 回调已完成（WS 推送可能比回调更快到达）
            if (config.getBaseLongTraderParam() == null || config.getBaseShortTraderParam() == null) {
                log.warn("[OKX] 基底REST回调尚未完成, 延后队列生成");
                return;
            }

            generateShortQueue();
            generateLongQueue();
            updateGridElements();

            GridElement baseGridElement = GridElement.findById(0);
            TraderParam baseLongTraderParam = config.getBaseLongTraderParam();
            baseGridElement.setLongOrderId(baseLongTraderParam.getEntryOrderId());
            baseGridElement.setHasLongOrder(true);
            TraderParam baseShortTraderParam = config.getBaseShortTraderParam();
            baseGridElement.setShortOrderId(baseShortTraderParam.getEntryOrderId());
            baseGridElement.setHasShortOrder(true);

            // 挂初始止损
            int stopCount = Integer.parseInt(config.getBaseQuantity()) / Integer.parseInt(config.getQuantity()) + 1;
            for (int id = 2; id <= stopCount; id++) {
                GridElement elem = GridElement.findById(id);
                if (elem == null) {
                    continue;
                }
                BigDecimal triggerPrice = elem.getGridPrice();
                int finalId = id;
                executor.placeStopLoss(triggerPrice, "close_short", config.getQuantity(),
                        profitId -> {
                            elem.setShortStopLossOrderId(profitId);
                            GridElement.refreshIndices();
                            log.info("[OKX] 空仓止损已挂, gridId:{}, 触发价:{}, slId:{}", finalId, triggerPrice, profitId);
                        });
            }
            for (int id = -2; id >= -stopCount; id--) {
                GridElement elem = GridElement.findById(id);
                if (elem == null) {
                    continue;
                }
                BigDecimal triggerPrice = elem.getGridPrice();
                int finalId = id;
                executor.placeStopLoss(triggerPrice, "close_long", config.getQuantity(),
                        profitId -> {
                            elem.setLongStopLossOrderId(profitId);
                            GridElement.refreshIndices();
                            log.info("[OKX] 多仓止损已挂, gridId:{}, 触发价:{}, slId:{}", finalId, triggerPrice, profitId);
                        });
            }
            log.info("[OKX] 止损单已全部挂完, 空仓止损: 2~{}, 多仓止损: -2~-{}", stopCount, stopCount);

            state = StrategyState.ACTIVE;
        }
    }

    // ---- TraderParam 更新辅助方法 ----

    private void longTakeProfitTraderIdParam(GridElement e, String profitId, boolean flag) {
        TraderParam tp = e.getLongTraderParam();
        tp.setTakeProfitOrderId(profitId);
        tp.setTakeProfitPlaced(flag);
        e.setLongTakeProfitOrderId(profitId);
        GridElement.refreshIndices();
    }

    private void shortTakeProfitTraderIdParam(GridElement e, String profitId, boolean flag) {
        TraderParam tp = e.getShortTraderParam();
        tp.setTakeProfitOrderId(profitId);
        tp.setTakeProfitPlaced(flag);
        e.setShortTakeProfitOrderId(profitId);
        GridElement.refreshIndices();
    }

    private void longEntryTraderIdParam(GridElement e, String entryId, boolean flag) {
        TraderParam tp = e.getLongTraderParam();
        tp.setEntryOrderId(entryId);
        tp.setEntryOrderPlaced(flag);
        e.setHasLongOrder(flag);
        e.setLongOrderId(entryId);
        GridElement.refreshIndices();
    }

    private void shortEntryTraderIdParam(GridElement e, String entryId, boolean flag) {
        TraderParam tp = e.getShortTraderParam();
        tp.setEntryOrderId(entryId);
        tp.setEntryOrderPlaced(flag);
        e.setHasShortOrder(flag);
        e.setShortOrderId(entryId);
        GridElement.refreshIndices();
    }

    // ---- 队列生成 ----

    private void generateShortQueue() {
        shortPriceQueue.clear();
        totalShortPriceQueue.clear();
        totalLongPriceQueue.clear();
        int prec = config.getPriceScale();
        BigDecimal step = shortBaseEntryPrice.multiply(config.getGridRate()).setScale(prec, RoundingMode.HALF_UP);
        config.setStep(step);
        BigDecimal elem = shortBaseEntryPrice.subtract(step).setScale(prec, RoundingMode.HALF_UP);
        for (int i = 0; i < config.getGridQueueSize(); i++) {
            shortPriceQueue.add(elem);
            totalLongPriceQueue.add(elem);
            totalShortPriceQueue.add(elem);
            elem = elem.subtract(step).setScale(prec, RoundingMode.HALF_UP);
            if (elem.compareTo(BigDecimal.ZERO) <= 0) {
                break;
            }
        }
        shortPriceQueue.sort((a, b) -> b.compareTo(a));
        log.info("[OKX] 空队列:{}", shortPriceQueue);
    }

    private void generateLongQueue() {
        longPriceQueue.clear();
        int prec = config.getPriceScale();
        BigDecimal step = config.getStep();
        BigDecimal elem = shortBaseEntryPrice.add(step).setScale(prec, RoundingMode.HALF_UP);
        for (int i = 0; i < config.getGridQueueSize(); i++) {
            longPriceQueue.add(elem);
            totalLongPriceQueue.add(elem);
            totalShortPriceQueue.add(elem);
            elem = elem.add(step).setScale(prec, RoundingMode.HALF_UP);
        }
        longPriceQueue.sort(BigDecimal::compareTo);
        log.info("[OKX] 多队列:{}", longPriceQueue);
        totalShortPriceQueue.sort((a, b) -> b.compareTo(a));
        totalLongPriceQueue.sort(BigDecimal::compareTo);
    }

    private void updateGridElements() {
        List<GridElement> elements = new ArrayList<>();
        int shortSize = shortPriceQueue.size();
        int longSize = longPriceQueue.size();
        int prec = config.getPriceScale();
        BigDecimal step = config.getStep();
        String qty = config.getQuantity();

        // 空仓队列：id 从 -1 自减
        for (int i = 0; i < shortSize; i++) {
            int id = -(i + 1);
            Integer upId = (i == 0) ? 0 : id + 1;
            Integer downId = (i == shortSize - 1) ? null : id - 1;
            BigDecimal price = shortPriceQueue.get(i);
            elements.add(GridElement.builder()
                    .id(id).gridPrice(price).upId(upId).downId(downId)
                    .longTraderParam(TraderParam.builder().direction(TraderParam.Direction.LONG)
                            .entryPrice(price).takeProfitPrice(price.add(step).setScale(prec, RoundingMode.HALF_UP))
                            .quantity(qty).build())
                    .shortTraderParam(TraderParam.builder().direction(TraderParam.Direction.SHORT)
                            .entryPrice(price).takeProfitPrice(price.subtract(step).setScale(prec, RoundingMode.HALF_UP))
                            .quantity(qty).build())
                    .build());
        }

        // 位置 0
        {
            BigDecimal price = shortBaseEntryPrice;
            elements.add(GridElement.builder()
                    .id(0).gridPrice(price)
                    .upId(longSize > 0 ? 1 : null).downId(shortSize > 0 ? -1 : null)
                    .longTraderParam(TraderParam.builder().direction(TraderParam.Direction.LONG)
                            .entryPrice(price).takeProfitPrice(price.add(step).setScale(prec, RoundingMode.HALF_UP))
                            .quantity(qty).build())
                    .shortTraderParam(TraderParam.builder().direction(TraderParam.Direction.SHORT)
                            .entryPrice(price).takeProfitPrice(price.subtract(step).setScale(prec, RoundingMode.HALF_UP))
                            .quantity(qty).build())
                    .build());
        }

        // 多仓队列：id 从 1 自增
        for (int i = 0; i < longSize; i++) {
            int id = i + 1;
            Integer downId = (i == 0) ? 0 : id - 1;
            Integer upId = (i == longSize - 1) ? null : id + 1;
            BigDecimal price = longPriceQueue.get(i);
            elements.add(GridElement.builder()
                    .id(id).gridPrice(price).upId(upId).downId(downId)
                    .longTraderParam(TraderParam.builder().direction(TraderParam.Direction.LONG)
                            .entryPrice(price).takeProfitPrice(price.add(step).setScale(prec, RoundingMode.HALF_UP))
                            .quantity(qty).build())
                    .shortTraderParam(TraderParam.builder().direction(TraderParam.Direction.SHORT)
                            .entryPrice(price).takeProfitPrice(price.subtract(step).setScale(prec, RoundingMode.HALF_UP))
                            .quantity(qty).build())
                    .build());
        }

        config.setGridElements(elements);
        log.info("[OKX] 网格元素列表已构建, 共{}个元素 (空仓:{} 位置:0 多仓:{})", elements.size(), shortSize, longSize);
    }

    // ---- processShortGrid / processLongGrid ----

    private void processShortGrid(BigDecimal currentPrice) {
        BigDecimal matched = BigDecimal.ZERO;
        synchronized (totalLongPriceQueue) {
            for (BigDecimal p : totalLongPriceQueue) {
                if (p.compareTo(currentPrice) >= 0) { matched = p; break; }
            }
            if (BigDecimal.ZERO.compareTo(matched) == 0) {
                return;
            }
            GridElement matchedUpGridElement = GridElement.findByPrice(matched);
            if (matchedUpGridElement != null && !matchedUpGridElement.isHasLongOrder()) {
                Integer upId = matchedUpGridElement.getUpId();
                GridElement newEntryGrid = GridElement.findById(upId);
                if (newEntryGrid != null) {
                    GridElement cancelGridElement = GridElement.findById(newEntryGrid.getUpId());
                    String quantity = cancelGridElement != null
                            ? cancelGridElement.getLongTraderParam().getQuantity()
                            : config.getBaseQuantity();
                    if (cancelGridElement != null && cancelGridElement.isHasLongOrder()) {
                        String longOrderId = cancelGridElement.getLongOrderId();
                        executor.cancelConditionalOrder(longOrderId, oid -> {
                            longEntryTraderIdParam(cancelGridElement, null, false);
                            log.info("[OKX] 多仓仓位归零, 取消gridId:{}的多单,{}", cancelGridElement.getId(), longOrderId);
                        });
                    }
                    if (!newEntryGrid.isHasLongOrder()) {
                        BigDecimal triggerPrice = newEntryGrid.getGridPrice();
                        String size = quantity;
                        log.info("[OKX] 多仓仓位归零 gridId:{}, 挂{}基础张多单", newEntryGrid.getId(), size);
                        newEntryGrid.getLongTraderParam().setQuantity(size);
                        placeEntryOrderWithPreFlag(newEntryGrid, true, triggerPrice, size);
                    }
                }
            }
        }
    }

    private void processLongGrid(BigDecimal currentPrice) {
        BigDecimal matched = BigDecimal.ZERO;
        synchronized (totalShortPriceQueue) {
            for (BigDecimal p : totalShortPriceQueue) {
                if (p.compareTo(currentPrice) <= 0) { matched = p; break; }
            }
            if (BigDecimal.ZERO.compareTo(matched) == 0) {
                return;
            }
            GridElement matchedUpGridElement = GridElement.findByPrice(matched);
            if (matchedUpGridElement != null && !matchedUpGridElement.isHasShortOrder()) {
                Integer downId = matchedUpGridElement.getDownId();
                GridElement newEntryGrid = GridElement.findById(downId);
                if (newEntryGrid != null) {
                    GridElement cancelGridElement = GridElement.findById(newEntryGrid.getDownId());
                    String quantity = cancelGridElement != null
                            ? cancelGridElement.getShortTraderParam().getQuantity()
                            : config.getBaseQuantity();
                    if (cancelGridElement != null && cancelGridElement.isHasShortOrder()) {
                        String shortOrderId = cancelGridElement.getShortOrderId();
                        executor.cancelConditionalOrder(shortOrderId, oid -> {
                            shortEntryTraderIdParam(cancelGridElement, null, false);
                            log.info("[OKX] 空仓仓位归零, 取消gridId:{}的空单{}", cancelGridElement.getId(), shortOrderId);
                        });
                    }
                    if (!newEntryGrid.isHasShortOrder()) {
                        BigDecimal triggerPrice = newEntryGrid.getGridPrice();
                        String size = quantity;
                        log.info("[OKX] 空仓仓位归零 gridId:{}, 挂{}基础张空单", newEntryGrid.getId(), size);
                        newEntryGrid.getShortTraderParam().setQuantity(size);
                        placeEntryOrderWithPreFlag(newEntryGrid, false, triggerPrice, negate(size));
                    }
                }
            }
        }
    }

    // ---- 止损处理 ----

    private void handleLongStopLossTriggered(GridElement gridElement) {
        gridElement.setLongStopLossOrderId(null);
        int gridId = gridElement.getId();
        log.info("[OKX] 多仓止损触发 gridId:{}, 开始追单", gridId);
        int newEntryGridId = gridId + 1;
        GridElement newEntryGrid = GridElement.findById(newEntryGridId);
        if (newEntryGrid == null) {
            log.warn("[OKX] 多仓止损触发 but gridId:{} 不存在", newEntryGridId);
            GridElement.refreshIndices();
            return;
        }
        if (!newEntryGrid.isHasLongOrder()) {
            BigDecimal triggerPrice = newEntryGrid.getGridPrice();
            accumulatedLongLossCount += Integer.parseInt(config.getQuantity());
            String size = String.valueOf(accumulatedLongLossCount + Integer.parseInt(config.getQuantity()));
            log.info("[OKX] 多仓止损触发 gridId:{}, 在gridId:{}挂{}基础张多单", gridId, newEntryGridId, size);
            newEntryGrid.getLongTraderParam().setQuantity(size);
            placeEntryOrderWithPreFlag(newEntryGrid, true, triggerPrice, size);
        } else {
            log.warn("[OKX] 多仓止损触发 gridId:{}, 目标gridId:{}已有挂单，跳过", gridId, newEntryGridId);
        }
        int cancelGridId = gridId + 2;
        GridElement cancelGrid = GridElement.findById(cancelGridId);
        if (cancelGrid != null && cancelGrid.isHasLongOrder()) {
            executor.cancelConditionalOrder(cancelGrid.getLongOrderId(), oid -> {
                longEntryTraderIdParam(cancelGrid, null, false);
                log.info("[OKX] 多仓止损触发, 取消gridId:{}的多单", cancelGridId);
            });
        }
        GridElement farthestLongTp = null;
        for (GridElement e : config.getGridElements()) {
            if (e.getLongTakeProfitOrderId() != null) {
                if (farthestLongTp == null || e.getGridPrice().compareTo(farthestLongTp.getGridPrice()) > 0) {
                    farthestLongTp = e;
                }
            }
        }
        if (farthestLongTp != null) {
            String tpOrderId = farthestLongTp.getLongTakeProfitOrderId();
            GridElement finalFarthest = farthestLongTp;
            executor.cancelConditionalOrder(tpOrderId, oid -> {
                longTakeProfitTraderIdParam(finalFarthest, null, false);
                log.info("[OKX] 多仓止损触发, 取消最远止盈 gridId:{}, orderId:{}", finalFarthest.getId(), tpOrderId);
            });
        }
    }

    private void handleShortStopLossTriggered(GridElement gridElement) {
        gridElement.setShortStopLossOrderId(null);
        int gridId = gridElement.getId();
        log.info("[OKX] 空仓止损触发 gridId:{}, 开始追单", gridId);
        int newEntryGridId = gridId - 1;
        GridElement newEntryGrid = GridElement.findById(newEntryGridId);
        if (newEntryGrid == null) {
            log.warn("[OKX] 空仓止损触发 but gridId:{} 不存在", newEntryGridId);
            GridElement.refreshIndices();
            return;
        }
        if (!newEntryGrid.isHasShortOrder()) {
            BigDecimal triggerPrice = newEntryGrid.getGridPrice();
            accumulatedShortLossCount += Integer.parseInt(config.getQuantity());
            String size = String.valueOf(accumulatedShortLossCount + Integer.parseInt(config.getQuantity()));
            log.info("[OKX] 空仓止损触发 gridId:{}, 在gridId:{}挂{}基础张空单", gridId, newEntryGridId, size);
            newEntryGrid.getShortTraderParam().setQuantity(size);
            placeEntryOrderWithPreFlag(newEntryGrid, false, triggerPrice, negate(size));
        } else {
            log.warn("[OKX] 空仓止损触发 gridId:{}, 目标gridId:{}已有挂单，跳过", gridId, newEntryGridId);
        }
        int cancelGridId = gridId - 2;
        GridElement cancelGrid = GridElement.findById(cancelGridId);
        if (cancelGrid != null && cancelGrid.isHasShortOrder()) {
            executor.cancelConditionalOrder(cancelGrid.getShortOrderId(), oid -> {
                shortEntryTraderIdParam(cancelGrid, null, false);
                log.info("[OKX] 空仓止损触发, 取消gridId:{}的空单", cancelGridId);
            });
        }
        GridElement farthestShortTp = null;
        for (GridElement e : config.getGridElements()) {
            if (e.getShortTakeProfitOrderId() != null) {
                if (farthestShortTp == null || e.getGridPrice().compareTo(farthestShortTp.getGridPrice()) < 0) {
                    farthestShortTp = e;
                }
            }
        }
        if (farthestShortTp != null) {
            String tpOrderId = farthestShortTp.getShortTakeProfitOrderId();
            GridElement finalFarthest = farthestShortTp;
            executor.cancelConditionalOrder(tpOrderId, oid -> {
                shortTakeProfitTraderIdParam(finalFarthest, null, false);
                log.info("[OKX] 空仓止损触发, 取消最远止盈 gridId:{}, orderId:{}", finalFarthest.getId(), tpOrderId);
            });
        }
    }

    // ---- 止盈/止损取消辅助 ----

    private void checkLastTakeProfitAndRestart() {
        int span = config.getRestartGridSpan();
        if (span <= 0) {
            return;
        }

        if (GridElement.getLongTakeProfitCount() > 0 || GridElement.getShortTakeProfitCount() > 0) {
            log.info("[OKX] 尚有未触发止盈单, 暂不检查跨度重启 longTpCount:{}, shortTpCount:{}",
                    GridElement.getLongTakeProfitCount(), GridElement.getShortTakeProfitCount());
            return;
        }

        BigDecimal step = config.getStep();
        if (step == null || step.compareTo(BigDecimal.ZERO) == 0) {
            return;
        }
        BigDecimal threshold = step.multiply(new BigDecimal(span));
        BigDecimal currentPrice = lastKlinePrice;
        if (currentPrice == null || currentPrice.compareTo(BigDecimal.ZERO) == 0) {
            return;
        }

        // 查交易所获取最新持仓均价
        OkxPositionInfo longPos = queryPosition(OkxPosMode.LONG);
        OkxPositionInfo shortPos = queryPosition(OkxPosMode.SHORT);
        boolean hasLong = longPos != null && Math.abs(Integer.parseInt(longPos.size)) > 0;
        boolean hasShort = shortPos != null && Math.abs(Integer.parseInt(shortPos.size)) > 0;
        BigDecimal longAvgPrice = (longPos != null && longPos.entryPrice != null)
                ? new BigDecimal(longPos.entryPrice) : BigDecimal.ZERO;
        BigDecimal shortAvgPrice = (shortPos != null && shortPos.entryPrice != null)
                ? new BigDecimal(shortPos.entryPrice) : BigDecimal.ZERO;

        boolean shouldRestart = false;
        String reason = "";

        if (hasLong && hasShort) {
            BigDecimal gap = shortAvgPrice.subtract(longAvgPrice);
            if (gap.compareTo(threshold) >= 0) {
                shouldRestart = true;
                reason = StrUtil.format("双边跨度 |多均价:{} − 空均价:{}| = {} >= {} (span:{}×step:{})",
                        longAvgPrice, shortAvgPrice, gap, threshold, span, step);
            }
        } else if (hasLong) {
            BigDecimal gap = currentPrice.subtract(longAvgPrice);
            if (gap.compareTo(threshold) >= 0) {
                shouldRestart = true;
                reason = StrUtil.format("多仓跨度 当前价:{} − 多均价:{} = {} > {} (span:{}×step:{})",
                        currentPrice, longAvgPrice, gap, threshold, span, step);
            }
        } else if (hasShort) {
            BigDecimal gap = shortAvgPrice.subtract(currentPrice);
            if (gap.compareTo(threshold) >= 0) {
                shouldRestart = true;
                reason = StrUtil.format("空仓跨度 空均价:{} − 当前价:{} = {} > {} (span:{}×step:{})",
                        shortAvgPrice, currentPrice, gap, threshold, span, step);
            }
        }

        if (shouldRestart) {
            log.info("[OKX] 跨度已达要求 → {}，最后一个止盈触发策略重启", reason);
            executor.cancelAllPriceTriggeredOrders();
            closeExistingPositions();
            state = StrategyState.STOPPED;
            executor.submitTask(() -> {
                try { Thread.sleep(3000); } catch (InterruptedException ex) { Thread.currentThread().interrupt(); }
                startGrid();
            });
        }
    }

    private void cancelFarthestLongStopLoss() {
        GridElement farthest = null;
        for (GridElement e : config.getGridElements()) {
            if (e.getLongStopLossOrderId() != null) {
                if (farthest == null || e.getId() < farthest.getId()) {
                    farthest = e;
                }
            }
        }
        if (farthest != null) {
            String slId = farthest.getLongStopLossOrderId();
            farthest.setLongStopLossOrderId(null);
            GridElement.refreshIndices();
            GridElement finalFarthest = farthest;
            executor.cancelConditionalOrder(slId, oid ->
                    log.info("[OKX] 止盈触发, 取消最远多仓止损 gridId:{}, orderId:{}", finalFarthest.getId(), slId));
        }
    }

    private void cancelFarthestShortStopLoss() {
        GridElement farthest = null;
        for (GridElement e : config.getGridElements()) {
            if (e.getShortStopLossOrderId() != null) {
                if (farthest == null || e.getId() > farthest.getId()) {
                    farthest = e;
                }
            }
        }
        if (farthest != null) {
            String slId = farthest.getShortStopLossOrderId();
            farthest.setShortStopLossOrderId(null);
            GridElement.refreshIndices();
            GridElement finalFarthest = farthest;
            executor.cancelConditionalOrder(slId, oid ->
                    log.info("[OKX] 止盈触发, 取消最远空仓止损 gridId:{}, orderId:{}", finalFarthest.getId(), slId));
        }
    }

    private void cancelAllLongTakeProfitsAndStopLosses() {
        for (GridElement e : config.getGridElements()) {
            String tpId = e.getLongTakeProfitOrderId();
            if (tpId != null) { e.setLongTakeProfitOrderId(null); executor.cancelConditionalOrder(tpId, oid -> {}); }
            String slId = e.getLongStopLossOrderId();
            if (slId != null) { e.setLongStopLossOrderId(null); executor.cancelConditionalOrder(slId, oid -> {}); }
        }
        GridElement.refreshIndices();
        log.info("[OKX] 已提交取消所有多仓止盈+止损");
    }

    private void cancelAllShortTakeProfitsAndStopLosses() {
        for (GridElement e : config.getGridElements()) {
            String tpId = e.getShortTakeProfitOrderId();
            if (tpId != null) { e.setShortTakeProfitOrderId(null); executor.cancelConditionalOrder(tpId, oid -> {}); }
            String slId = e.getShortStopLossOrderId();
            if (slId != null) { e.setShortStopLossOrderId(null); executor.cancelConditionalOrder(slId, oid -> {}); }
        }
        GridElement.refreshIndices();
        log.info("[OKX] 已提交取消所有空仓止盈+止损");
    }

    // ---- 止损追单 ----

    private void extendLongStopLoss(int filledQty, int gridId) {
        int furthestSlId = 0;
        for (GridElement e : config.getGridElements()) {
            if (e.getLongStopLossOrderId() != null && e.getId() < furthestSlId) {
                furthestSlId = e.getId();
            }
        }
        int interval = 1;
        if (furthestSlId == 0) { furthestSlId = gridId; interval = 2; }
        int stopLossCount = filledQty / Integer.parseInt(config.getQuantity());
        log.info("[OKX] 多仓追挂止损, 当前最远止损gridId:{}, 成交{}张, 追加{}个止损单", furthestSlId, filledQty, stopLossCount);
        for (int i = 0; i < stopLossCount; i++) {
            int newSlId = furthestSlId - i - interval;
            GridElement elem = GridElement.findById(newSlId);
            if (elem == null) {
                continue;
            }
            BigDecimal triggerPrice = elem.getGridPrice();
            int finalSlId = newSlId;
            executor.placeStopLoss(triggerPrice, "close_long", config.getQuantity(),
                    profitId -> {
                        elem.setLongStopLossOrderId(profitId);
                        GridElement.refreshIndices();
                        log.info("[OKX] 多仓止损追加, gridId:{}, 触发价:{}, slId:{}", finalSlId, triggerPrice, profitId);
                    });
        }
    }

    private void extendShortStopLoss(int filledQty, int gridId) {
        int furthestSlId = 0;
        for (GridElement e : config.getGridElements()) {
            if (e.getShortStopLossOrderId() != null && e.getId() > furthestSlId) {
                furthestSlId = e.getId();
            }
        }
        int interval = 1;
        if (furthestSlId == 0) { furthestSlId = gridId; interval = 2; }
        int stopLossCount = filledQty / Integer.parseInt(config.getQuantity());
        log.info("[OKX] 空仓追挂止损, 当前最远止损gridId:{}, 成交{}张, 追加{}个止损单", furthestSlId, filledQty, stopLossCount);
        for (int i = 0; i < stopLossCount; i++) {
            int newSlId = furthestSlId + i + interval;
            GridElement elem = GridElement.findById(newSlId);
            if (elem == null) {
                continue;
            }
            BigDecimal triggerPrice = elem.getGridPrice();
            int finalSlId = newSlId;
            executor.placeStopLoss(triggerPrice, "close_short", config.getQuantity(),
                    profitId -> {
                        elem.setShortStopLossOrderId(profitId);
                        GridElement.refreshIndices();
                        log.info("[OKX] 空仓止损追加, gridId:{}, 触发价:{}, slId:{}", finalSlId, triggerPrice, profitId);
                    });
        }
    }

    // ---- 工具 ----

    private String negate(String qty) {
        return qty.startsWith("-") ? qty.substring(1) : "-" + qty;
    }

    private void placeEntryOrderWithPreFlag(GridElement gridElement, boolean isLong,
                                             BigDecimal triggerPrice, String size) {
        if (isLong) {
            gridElement.setHasLongOrder(true);
        } else {
            gridElement.setHasShortOrder(true);
        }
        executor.placeConditionalEntryOrder(triggerPrice, isLong, size,
                orderId -> {
                    if (isLong) {
                        longEntryTraderIdParam(gridElement, orderId, true);
                    } else {
                        shortEntryTraderIdParam(gridElement, orderId, true);
                    }
                },
                () -> {
                    if (isLong) {
                        gridElement.setHasLongOrder(false);
                        gridElement.setLongOrderId(null);
                    } else {
                        gridElement.setHasShortOrder(false);
                        gridElement.setShortOrderId(null);
                    }
                    GridElement.refreshIndices();
                    log.warn("[OKX] 条件单创建失败，回滚标志位 gridId:{}, isLong:{}", gridElement.getId(), isLong);
                });
    }

    private void updateUnrealizedPnl() {
        BigDecimal price = resolvePnlPrice();
        if (price == null || price.compareTo(BigDecimal.ZERO) == 0) {
            return;
        }
        BigDecimal multiplier = config.getContractMultiplier();
        BigDecimal longPnl = BigDecimal.ZERO;
        BigDecimal shortPnl = BigDecimal.ZERO;
        if (longPositionSize.compareTo(BigDecimal.ZERO) > 0 && longEntryPrice.compareTo(BigDecimal.ZERO) > 0) {
            longPnl = longPositionSize.multiply(multiplier).multiply(price.subtract(longEntryPrice));
        }
        if (shortPositionSize.compareTo(BigDecimal.ZERO) > 0 && shortEntryPrice.compareTo(BigDecimal.ZERO) > 0) {
            shortPnl = shortPositionSize.multiply(multiplier).multiply(shortEntryPrice.subtract(price));
        }
        unrealizedPnl = longPnl.add(shortPnl);
        log.info("[OKX] 未实现盈亏: {}", unrealizedPnl);
    }

    private BigDecimal resolvePnlPrice() {
        if (config.getUnrealizedPnlPriceMode() == OkxConfig.PnLPriceMode.MARK_PRICE
                && markPrice.compareTo(BigDecimal.ZERO) > 0) {
            return markPrice;
        }
        return lastKlinePrice;
    }

    // ---- getters ----

    public BigDecimal getLastKlinePrice() { return lastKlinePrice; }
    public void setMarkPrice(BigDecimal markPrice) { this.markPrice = markPrice; }
    public boolean isStrategyActive() { return state != StrategyState.STOPPED && state != StrategyState.WAITING_KLINE; }
    public BigDecimal getCumulativePnl() { return cumulativePnl; }
    public BigDecimal getUnrealizedPnl() { return unrealizedPnl; }
    public StrategyState getState() { return state; }
    public void setWsClient(OkxKlineWebSocketClient wsClient) { this.wsClient = wsClient; }
}