/* Copyright (c) 2025-2026 马建军. All rights reserved.
 * 专有软件 — 未经授权禁止复制、传播、转售。
 * 详见 LICENSE.zh-CN.txt
 */
(function () {
    var sizingMode = 'fixed';
    var list = document.getElementById('position-live-list');
    var orderList = document.getElementById('order-live-list');
    var syncBadge = document.getElementById('sync-badge');
    var recommendList = document.getElementById('recommend-list');
    var symInput = document.getElementById('trade-symbol');
    var dirSelect = document.getElementById('trade-direction');
    var lotsInput = document.getElementById('trade-lots');
    var lotsCalc = document.getElementById('trade-lots-calc');
    var priceInput = document.getElementById('trade-price');
    var slInput = document.getElementById('trade-sl');
    var tpInput = document.getElementById('trade-tp');
    var marketHint = document.getElementById('market-hint');
    var metricsHint = document.getElementById('trade-metrics-hint');
    var recommendSource = null;
    var positionSource = null;
    var quoteTimer = null;
    var calcTimer = null;
    var lastQuotePrice = null;
    var priceType = 'limit';
    var lastCtpReconnectAt = 0;
    var lastCtpUnreachableAt = 0;
    var lastCtpLoginBanAt = 0;
    var ctpReconnecting = false;
    var ctpConnectInflight = false;
    var isTradingSession = false;
    var hasSlTpMonitoring = false;
    var ctpConnected = false;
    var ctpConnecting = false;
    var ctpAutoConnectEnabled = true;
    var positionsRendered = false;
    var selectedMaxLots = null;
    var recommendMaxByProduct = {};
    var recommendMaxByCode = {};
    var recRowsRaw = [];
    var recSortKey = 'trend';
    var recSortDesc = true;
    var recIndustryFilter = '';
    var REC_SORT_CACHE = 'qihuo_rec_sort_v2';
    var REC_INDUSTRY_CACHE = 'qihuo_rec_industry_v1';
    var REC_COLSPAN = 18;
    var marketNavEnabled = false;
    var productCategories = [];
    var POS_CACHE_KEY = 'qihuo_trading_live_v5';

    function loadTradeConfig() {
        var el = document.getElementById('trade-page-data');
        if (!el) return;
        try {
            var cfg = JSON.parse(el.textContent);
            sizingMode = cfg.sizing_mode || 'fixed';
            if (sizingMode === 'risk') sizingMode = 'amount';
            ctpAutoConnectEnabled = cfg.ctp_auto_connect !== false;
            marketNavEnabled = !!cfg.market_nav_enabled;
            productCategories = cfg.product_categories || [];
            window.TRADE_FIXED_LOTS = cfg.fixed_lots;
            window.TRADE_FIXED_AMOUNT = cfg.fixed_amount;
            window.__RECOMMEND_ROWS__ = cfg.recommend_rows || [];
            if (cfg.session_clock) applySessionClock(cfg.session_clock);
        } catch (e) { /* ignore */ }
    }

    function fmtNum(v, digits) {
        if (v === null || v === undefined) return '--';
        return Number(v).toFixed(digits === undefined ? 2 : digits);
    }

    function selectedSymbol() {
        var codeEl = document.getElementById('trade-symbol-code');
        var code = codeEl && codeEl.value ? codeEl.value.trim() : '';
        if (code) return code;
        return (symInput && symInput.value || '').trim();
    }

    function isFixedMode() {
        return sizingMode === 'fixed';
    }

    function isAmountMode() {
        return sizingMode === 'amount';
    }

    function effectiveLots() {
        var v = parseInt(lotsCalc && lotsCalc.value, 10);
        return v > 0 ? v : 0;
    }

    function updateRecommendMaxMaps(data) {
        recommendMaxByProduct = {};
        recommendMaxByCode = {};
        (data && data.rows || []).forEach(function (r) {
            if (!r || r.max_lots <= 0) return;
            if (r.status !== 'ok' && r.status !== 'margin_ok') return;
            if (r.ths) recommendMaxByProduct[String(r.ths).toLowerCase()] = r.max_lots;
            if (r.main_code) recommendMaxByCode[String(r.main_code).toLowerCase()] = r.max_lots;
        });
        checkLotsLimit();
    }

    function maxLotsForSymbol(sym) {
        if (selectedMaxLots > 0) return selectedMaxLots;
        var code = (sym || '').trim().toLowerCase();
        if (!code) return 0;
        if (recommendMaxByCode[code]) return recommendMaxByCode[code];
        var m = code.match(/^([a-z]+)/i);
        if (m && recommendMaxByProduct[m[1].toLowerCase()]) {
            return recommendMaxByProduct[m[1].toLowerCase()];
        }
        return 0;
    }

    function checkLotsLimit() {
        var warn = document.getElementById('lots-warn');
        if (!warn) return;
        var sym = selectedSymbol();
        var maxLots = maxLotsForSymbol(sym);
        var lots = effectiveLots();
        if (lastSizingInfo && lastSizingInfo.capped_by === 'margin' && lastSizingInfo.lots_by_risk > lots) {
            warn.hidden = false;
            warn.textContent = '以损定仓 ' + lastSizingInfo.lots_by_risk + ' 手，保证金上限 ' +
                (lastSizingInfo.max_margin_pct || '') + '% 收紧为 ' + lots + ' 手';
            return;
        }
        if (maxLots > 0 && lots > maxLots) {
            warn.hidden = false;
            warn.textContent = '已超过最大手数 ' + maxLots + ' 手，请调整手数';
        } else {
            warn.hidden = true;
            warn.textContent = '';
        }
    }

    function loadPosCache() {
        try {
            var raw = sessionStorage.getItem(POS_CACHE_KEY);
            if (!raw) return null;
            return JSON.parse(raw);
        } catch (e) {
            return null;
        }
    }

    function savePosCache(data) {
        try {
            if (!data) return;
            var connected = data.ctp_status && data.ctp_status.connected;
            if (!connected) {
                sessionStorage.removeItem(POS_CACHE_KEY);
                return;
            }
            if (!data.rows || !data.rows.length) {
                if (!data.active_orders || !data.active_orders.length) {
                    sessionStorage.removeItem(POS_CACHE_KEY);
                    return;
                }
            }
            sessionStorage.setItem(POS_CACHE_KEY, JSON.stringify(data));
        } catch (e) { /* quota */ }
    }

    function showCtpError(msg) {
        var hint = document.querySelector('.ctp-install-hint');
        if (hint) hint.textContent = msg || '';
    }

    function isCtpLoginBanError(msg) {
        return !!(msg && (
            msg.indexOf('登录被禁止') >= 0 ||
            msg.indexOf('连续登录失败') >= 0 ||
            msg.indexOf('登录冷却') >= 0 ||
            msg.indexOf('错误码 75') >= 0
        ));
    }

    function isCtpUnreachableError(msg) {
        return !!(msg && (msg.indexOf('不可达') >= 0 || msg.indexOf('Connection refused') >= 0 || msg.indexOf('timed out') >= 0));
    }

    function applyActiveOrders(orders, data) {
        if (!orderList) return;
        orders = orders || [];
        if (!orders.length) {
            var connected = data && data.ctp_status && data.ctp_status.connected;
            if (!connected) {
                var hint = (data && data.ctp_status && data.ctp_status.disabled_hint) ||
                    'CTP 未连接，委托以柜台为准';
                orderList.innerHTML = '<div class="empty-hint text-muted">' + hint + '</div>';
                return;
            }
            orderList.innerHTML = '<div class="empty-hint">暂无委托。</div>';
            return;
        }
        orderList.innerHTML = orders.map(buildPendingOrderCard).join('');
        bindPendingDismiss(orderList);
        bindCancelOpenButtons(orderList);
        bindCancelOrderButtons(orderList);
    }

    function applyPositionsData(data) {
        if (!data) return;
        var cap = document.getElementById('cap-display');
        if (cap && data.capital != null) cap.textContent = Number(data.capital).toFixed(2);
        var connected = data.ctp_status && data.ctp_status.connected;
        var connecting = data.ctp_status && data.ctp_status.connecting;
        var cooldownSec = (data.ctp_status && data.ctp_status.login_cooldown_sec) || 0;
        if (cooldownSec > 0) connecting = false;
        ctpConnected = !!connected;
        ctpConnecting = !!connecting;
        isTradingSession = !!data.trading_session;
        if (data.session_clock) applySessionClock(data.session_clock);
        syncCtpBadgeFromStatus(data.ctp_status || { connected: connected, connecting: connecting });
        if (data.ctp_status && typeof data.ctp_status.auto_connect_enabled === 'boolean') {
            ctpAutoConnectEnabled = data.ctp_status.auto_connect_enabled;
            updateCtpConnectButtonState();
        }
        if (syncBadge) {
            if (data.sync_label && connected) {
                syncBadge.hidden = false;
                syncBadge.textContent = data.sync_label;
                syncBadge.className = 'sync-badge ' + (data.sync_state === 'syncing' ? 'text-accent' : 'text-muted');
            } else {
                syncBadge.hidden = true;
                syncBadge.textContent = '';
            }
        }
        if (!connected && !connecting && data.ctp_status && data.ctp_status.last_error) {
            showCtpError(data.ctp_status.last_error);
            if (isCtpLoginBanError(data.ctp_status.last_error)) {
                lastCtpLoginBanAt = Date.now();
            } else if (isCtpUnreachableError(data.ctp_status.last_error)) {
                lastCtpUnreachableAt = Date.now();
            }
        } else if (!connected && data.ctp_status && data.ctp_status.disabled_hint) {
            showCtpError(data.ctp_status.disabled_hint);
        }
        var riskBadge = document.getElementById('risk-badge');
        if (riskBadge && data.risk_status) {
            riskBadge.textContent = data.risk_status.status_label || '';
            riskBadge.className = 'badge ' + (data.risk_status.can_trade ? 'profit' : 'loss');
        }
        applyActiveOrders(data.active_orders || [], data);
        if (!list) return;
        var rows = (data.rows || []).filter(function (row) {
            return row.order_state !== 'pending';
        });
        var seenKeys = {};
        rows = rows.filter(function (row) {
            var k = row.key || row.position_key || ((row.symbol_code || '') + ':' + (row.direction || ''));
            if (seenKeys[k]) return false;
            seenKeys[k] = true;
            return true;
        });
        hasSlTpMonitoring = rows.some(function (row) {
            return row.stop_loss != null || row.take_profit != null;
        });
        updateSessionUi();
        savePosCache(data);
        positionsRendered = true;
        if (!rows.length) {
            if (!connected) {
                if (connecting) {
                    list.innerHTML = '<div class="empty-hint">CTP 连接中，请稍候…</div>';
                    return;
                }
                if (cooldownSec > 0 || (data.ctp_status && data.ctp_status.last_error)) {
                    var err = (data.ctp_status && data.ctp_status.last_error) || 'CTP 未连接';
                    list.innerHTML = '<div class="empty-hint text-loss">' + err + '</div>';
                    return;
                }
                if (!ctpAutoConnectEnabled) {
                    var offHint = (data.ctp_status && data.ctp_status.disabled_hint) ||
                        'CTP 自动连接已关闭，请在系统设置中开启';
                    list.innerHTML = '<div class="empty-hint text-muted">' + offHint + '</div>';
                    return;
                }
                list.innerHTML = '<div class="empty-hint">CTP 未连接，正在尝试自动重连…</div>';
                if (ctpAutoConnectEnabled) tryAutoCtpReconnect();
                return;
            }
            list.innerHTML = '<div class="empty-hint">暂无持仓。</div>';
            return;
        }
        if (!connected && ctpAutoConnectEnabled) {
            tryAutoCtpReconnect();
        }
        list.innerHTML = rows.map(buildPosCard).join('');
        bindPendingDismiss(list);
        bindCancelOpenButtons(list);
        bindSlTpButtons(list);
        bindPlaceOrderButtons(list);
        list.querySelectorAll('[data-close]').forEach(function (btn) {
            btn.addEventListener('click', function () {
                closePosition(JSON.parse(decodeURIComponent(btn.getAttribute('data-close'))), btn);
            });
        });
    }

    function schedulePositionPoll() {
        /* 持仓改由后台 SSE 推送，保留空函数兼容旧调用 */
    }

    function updateSessionUi() {
        var btnOpen = document.getElementById('btn-open');
        var sessionHint = document.getElementById('session-hint');
        if (btnOpen) {
            btnOpen.disabled = !isTradingSession;
            btnOpen.classList.toggle('btn-session-off', !isTradingSession);
        }
        if (sessionHint) {
            sessionHint.hidden = !!isTradingSession;
        }
    }

    function entryPrice() {
        if (priceType === 'market') return lastQuotePrice;
        return parseFloat(priceInput && priceInput.value) || 0;
    }

    function isTrailingBeOn() {
        var el = document.getElementById('trailing-be');
        return !!(el && el.checked);
    }

    function updateTrailingBeUi() {
        var on = isTrailingBeOn();
        var tpField = document.getElementById('field-tp');
        var hint = document.getElementById('trailing-be-hint');
        if (tpField) tpField.classList.toggle('is-hidden', on);
        if (hint) hint.hidden = !on;
        if (on && tpInput) tpInput.value = '';
        updateRRDisplay();
        scheduleAutoCalc();
    }

    function calcRR(direction, entry, sl, tp) {
        entry = parseFloat(entry);
        sl = parseFloat(sl);
        tp = parseFloat(tp);
        if (!entry || !sl || !tp) return null;
        var risk, reward;
        if (direction === 'long') {
            risk = entry - sl;
            reward = tp - entry;
        } else if (direction === 'short') {
            risk = sl - entry;
            reward = entry - tp;
        } else {
            return null;
        }
        if (risk <= 0 || reward <= 0) return null;
        return (reward / risk).toFixed(2);
    }

    function updateRRDisplay() {
        var el = document.getElementById('trade-rr-hint');
        if (!el) return;
        var trailingOn = isTrailingBeOn();
        var dir = dirSelect ? dirSelect.value : 'long';
        var entry = entryPrice();
        var sl = slInput && slInput.value ? parseFloat(slInput.value) : 0;
        var tp = trailingOn ? 0 : (tpInput && tpInput.value ? parseFloat(tpInput.value) : 0);
        var lots = effectiveLots();
        var parts = [];
        if (!trailingOn) {
            var rr = calcRR(dir, entry, sl, tp);
            if (rr) parts.push('盈亏比 ' + rr + ':1');
        }
        if (sl > 0 && entry > 0 && lots > 0 && lastPreviewMetrics) {
            if (lastPreviewMetrics.risk_amount != null) {
                parts.push('止损金额 ' + fmtNum(lastPreviewMetrics.risk_amount) + ' 元');
            }
            if (!trailingOn && lastPreviewMetrics.reward_amount != null && tp > 0) {
                parts.push('止盈金额 ' + fmtNum(lastPreviewMetrics.reward_amount) + ' 元');
            }
        }
        if (parts.length) {
            el.textContent = parts.join(' · ');
            el.hidden = false;
        } else {
            el.textContent = '';
            el.hidden = true;
        }
    }

    var lastPreviewMetrics = null;
    var lastSizingInfo = null;
    var sessionClockBase = null;
    var sessionClockTickTimer = null;

    function fmtCountdown(secs) {
        secs = Math.max(0, parseInt(secs, 10) || 0);
        var h = Math.floor(secs / 3600);
        var m = Math.floor((secs % 3600) / 60);
        var s = secs % 60;
        if (h > 0) return h + '小时' + (m < 10 ? '0' : '') + m + '分' + (s < 10 ? '0' : '') + s + '秒';
        if (m > 0) return m + '分' + (s < 10 ? '0' : '') + s + '秒';
        return s + '秒';
    }

    function fmtClockNow(d) {
        var mo = d.getMonth() + 1;
        var da = d.getDate();
        var pad = function (n) { return n < 10 ? '0' + n : String(n); };
        return pad(mo) + '-' + pad(da) + ' ' + pad(d.getHours()) + ':' + pad(d.getMinutes()) + ':' + pad(d.getSeconds());
    }

    function tickSessionClock() {
        var base = sessionClockBase;
        if (!base || !base.clock) return;
        var c = base.clock;
        var elapsed = Math.floor((Date.now() - base.at) / 1000);
        var nowEl = document.getElementById('clock-now');
        if (nowEl && c.now) {
            var t = new Date(String(c.now).replace(/-/g, '/'));
            if (!isNaN(t.getTime())) {
                t.setSeconds(t.getSeconds() + elapsed);
                nowEl.textContent = fmtClockNow(t);
            }
        }
        var statusEl = document.getElementById('clock-status');
        if (statusEl) {
            statusEl.textContent = c.status_label || (c.in_session ? '交易时间段' : '非交易时间段');
            statusEl.className = c.in_session ? 'text-profit' : 'text-muted';
        }
        var detail = document.getElementById('clock-detail');
        if (!detail) return;
        var html = '';
        if (!c.in_session && c.secs_to_open != null) {
            html = ' · 下次' + (c.next_open_label || '开盘') + ' ' + (c.next_open_at || '') +
                ' · 距开盘 <strong>' + fmtCountdown(c.secs_to_open - elapsed) + '</strong>';
        } else if (c.in_session) {
            if (c.secs_to_break != null) {
                html += ' · 距' + (c.break_label || '休盘') + ' <strong>' +
                    fmtCountdown(c.secs_to_break - elapsed) + '</strong>';
            }
            if (c.secs_to_close != null) {
                html += ' · 距' + (c.close_label || '收盘') + ' <strong>' +
                    fmtCountdown(c.secs_to_close - elapsed) + '</strong>';
            }
        }
        detail.innerHTML = html;
    }

    function applySessionClock(clock) {
        if (!clock) return;
        sessionClockBase = { clock: clock, at: Date.now() };
        tickSessionClock();
        if (sessionClockTickTimer) clearInterval(sessionClockTickTimer);
        sessionClockTickTimer = setInterval(tickSessionClock, 1000);
    }

    function setPriceType(type) {
        priceType = type === 'market' ? 'market' : 'limit';
        document.querySelectorAll('.price-tab').forEach(function (btn) {
            btn.classList.toggle('active', btn.getAttribute('data-type') === priceType);
        });
        if (priceInput) {
            priceInput.disabled = priceType === 'market';
            if (priceType === 'market' && lastQuotePrice) priceInput.value = lastQuotePrice;
        }
        if (marketHint) marketHint.hidden = priceType !== 'market';
        updateRRDisplay();
    }

    function syncCtpBadgeFromStatus(st) {
        if (!st) return;
        var connected = !!st.connected;
        var connecting = !!st.connecting;
        if ((st.login_cooldown_sec || 0) > 0) {
            connecting = false;
        }
        updateCtpBadge(connected, connecting);
    }

    function updateCtpConnectButtonState() {
        var btnConnect = document.getElementById('btn-ctp-connect');
        var hint = document.getElementById('ctp-auto-hint');
        if (hint) {
            hint.textContent = ctpAutoConnectEnabled
                ? '断线自动重连 · 开盘前 30 分钟自动连接'
                : 'CTP 自动连接已关闭（系统设置可开启）';
        }
        if (btnConnect && !ctpAutoConnectEnabled) {
            btnConnect.disabled = true;
            btnConnect.title = '请先在系统设置 → CTP 连接 中开启自动连接';
        }
    }

    function updateCtpBadge(connected, connecting) {
        var ctpBadge = document.getElementById('ctp-badge');
        var btnConnect = document.getElementById('btn-ctp-connect');
        if (ctpBadge) {
            if (!ctpAutoConnectEnabled && !connected) {
                ctpBadge.textContent = 'CTP 已关闭';
                ctpBadge.className = 'badge planned';
            } else if (connecting) {
                ctpBadge.textContent = 'CTP 连接中';
                ctpBadge.className = 'badge planned';
            } else {
                ctpBadge.textContent = connected ? 'CTP 已连接' : 'CTP 未连接';
                ctpBadge.className = 'badge ' + (connected ? 'profit' : 'planned');
            }
        }
        if (btnConnect) {
            if (!ctpAutoConnectEnabled) {
                btnConnect.textContent = connected ? '重连 CTP' : '连接 CTP';
                btnConnect.disabled = true;
                btnConnect.title = '请先在系统设置 → CTP 连接 中开启自动连接';
            } else if (connecting) {
                btnConnect.textContent = '连接中…';
                btnConnect.disabled = true;
                btnConnect.title = '';
            } else {
                btnConnect.disabled = false;
                btnConnect.title = '';
                btnConnect.textContent = connected ? '重连 CTP' : '连接 CTP';
            }
        }
    }

    function waitForCtpConnected(maxMs) {
        var deadline = Date.now() + (maxMs || 70000);
        function tick() {
            return fetch('/api/ctp/status')
                .then(function (r) { return r.json(); })
                .then(function (d) {
                    var st = d.status || {};
                    if (st.connected) {
                        syncCtpBadgeFromStatus(st);
                        showCtpError('');
                        if (d.account && d.account.available != null) {
                            var avail = document.getElementById('avail-display');
                            if (avail) avail.textContent = Number(d.account.available).toFixed(2);
                        }
                        pollPositions();
                        return true;
                    }
                    if ((st.login_cooldown_sec || 0) > 0) {
                        syncCtpBadgeFromStatus(st);
                        if (st.last_error) showCtpError(st.last_error);
                        return false;
                    }
                    if (st.connecting && Date.now() < deadline) {
                        syncCtpBadgeFromStatus(st);
                        return new Promise(function (resolve) {
                            setTimeout(function () { resolve(tick()); }, 2000);
                        });
                    }
                    syncCtpBadgeFromStatus(st);
                    if (st.last_error) {
                        showCtpError(st.last_error);
                        if (isCtpLoginBanError(st.last_error)) {
                            lastCtpLoginBanAt = Date.now();
                        } else if (isCtpUnreachableError(st.last_error)) {
                            lastCtpUnreachableAt = Date.now();
                        }
                    }
                    return false;
                })
                .catch(function () { updateCtpBadge(false, false); return false; });
        }
        return tick();
    }

    function requestCtpConnect(force) {
        if (!force && !ctpAutoConnectEnabled) {
            showCtpError('CTP 自动连接已关闭，请在系统设置中开启');
            return Promise.resolve({ ok: false, disabled: true });
        }
        if (!force && ctpConnectInflight) {
            return Promise.resolve({});
        }
        ctpConnectInflight = true;
        return fetch('/api/ctp/connect', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ force: !!force, auto: !force })
        })
            .then(function (r) { return r.json(); })
            .then(function (d) {
                var st = d.status || {};
                if (st.connected) {
                    syncCtpBadgeFromStatus(st);
                    showCtpError('');
                    pollPositions();
                    return d;
                }
                if ((st.login_cooldown_sec || 0) > 0 || d.cooldown) {
                    syncCtpBadgeFromStatus(st);
                    showCtpError(st.last_error || d.error || 'CTP 登录冷却中');
                    return d;
                }
                if (d.connecting || st.connecting) {
                    updateCtpBadge(false, true);
                    return waitForCtpConnected(70000).then(function (ok) {
                        if (!ok && d.error) showCtpError(d.error);
                        else if (!ok && st.last_error) showCtpError(st.last_error);
                        return d;
                    });
                }
                if (d.disabled || st.auto_connect_enabled === false) {
                    ctpAutoConnectEnabled = false;
                    updateCtpConnectButtonState();
                    syncCtpBadgeFromStatus(st);
                    showCtpError(st.disabled_hint || d.error || 'CTP 自动连接已关闭');
                    return d;
                }
                if (!d.ok) {
                    syncCtpBadgeFromStatus(st);
                    var err = d.error || st.last_error || '连接失败';
                    showCtpError(err);
                }
                return d;
            })
            .catch(function () {
                updateCtpBadge(false, false);
            })
            .finally(function () {
                ctpConnectInflight = false;
            });
    }

    function refreshQuote() {
        var sym = selectedSymbol();
        var lots = effectiveLots() || (isFixedMode() ? (window.TRADE_FIXED_LOTS || 1) : 1);
        if (!sym) return;
        fetch('/api/trade/quote?symbol=' + encodeURIComponent(sym) + '&lots=' + encodeURIComponent(lots))
            .then(function (r) { return r.json(); })
            .then(function (data) {
                if (!data.ok) return;
                lastQuotePrice = data.price;
                if (priceType === 'market' && priceInput && data.price) {
                    priceInput.value = data.price;
                } else if (priceInput && !priceInput.dataset.manual && data.price) {
                    priceInput.value = data.price;
                }
                if (metricsHint && data.metrics) {
                    var m = data.metrics;
                    metricsHint.innerHTML =
                        '<strong>' + (data.name || sym) + '</strong> 精度 ' + m.price_precision +
                        ' 位 · 每跳 <strong class="text-accent">' + m.tick_value_total + '</strong> 元（' + lots + ' 手）';
                }
                scheduleAutoCalc();
            }).catch(function () {});
    }

    function scheduleQuote() {
        clearTimeout(quoteTimer);
        quoteTimer = setTimeout(refreshQuote, 400);
    }

    function scheduleAutoCalc() {
        clearTimeout(calcTimer);
        calcTimer = setTimeout(autoCalcLots, 450);
    }

    function autoCalcLots() {
        if (!lotsCalc) return;
        var sym = selectedSymbol();
        var entry = entryPrice() || parseFloat(priceInput && priceInput.value) || 0;
        var sl = parseFloat(slInput && slInput.value) || 0;
        var tp = isTrailingBeOn() ? 0 : (parseFloat(tpInput && tpInput.value) || 0);
        if (isFixedMode()) {
            var fixedLots = parseInt(window.TRADE_FIXED_LOTS, 10) || 1;
            lotsCalc.value = String(fixedLots);
            if (lotsInput) lotsInput.value = String(fixedLots);
            if (!sym || !entry) {
                lastPreviewMetrics = null;
                updateRRDisplay();
                checkLotsLimit();
                return;
            }
        } else if (isAmountMode()) {
            if (!sym || !entry || !sl) {
                lotsCalc.value = '';
                lotsCalc.placeholder = '填写止损后自动计算';
                lastPreviewMetrics = null;
                updateRRDisplay();
                checkLotsLimit();
                return;
            }
            lotsCalc.placeholder = '计算中…';
        } else {
            return;
        }
        fetch('/api/trade/preview', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({
                symbol: sym,
                direction: dirSelect ? dirSelect.value : 'long',
                entry: entry,
                price: entry,
                stop_loss: sl,
                take_profit: tp
            })
        }).then(function (r) {
            return r.json().then(function (data) {
                if (!r.ok && data && !data.error) data.error = '请求失败 ' + r.status;
                return data;
            });
        }).then(function (data) {
            if (!data.ok) {
                if (isAmountMode()) {
                    lotsCalc.value = '';
                    lotsCalc.placeholder = data.error || '无法计算';
                }
                lastPreviewMetrics = null;
                lastSizingInfo = null;
                updateRRDisplay();
                checkLotsLimit();
                return;
            }
            lotsCalc.value = String(data.lots || '');
            if (lotsInput) lotsInput.value = String(data.lots || '');
            lotsCalc.placeholder = isAmountMode() ? '填写止损后自动计算' : '—';
            lastPreviewMetrics = data.metrics || null;
            lastSizingInfo = data.sizing_info || null;
            updateRRDisplay();
            checkLotsLimit();
            scheduleQuote();
        }).catch(function () {
            if (isAmountMode()) lotsCalc.placeholder = '计算失败';
            lastPreviewMetrics = null;
            lastSizingInfo = null;
            updateRRDisplay();
        });
    }

    function tryAutoCtpReconnect() {
        if (!ctpAutoConnectEnabled) return;
        if (ctpReconnecting || ctpConnectInflight) return;
        var now = Date.now();
        if (now - lastCtpReconnectAt < 60000) return;
        if (lastCtpLoginBanAt && now - lastCtpLoginBanAt < 2700000) return;
        if (lastCtpUnreachableAt && now - lastCtpUnreachableAt < 300000) return;
        lastCtpReconnectAt = now;
        ctpReconnecting = true;
        requestCtpConnect(false).finally(function () {
            ctpReconnecting = false;
        });
    }

    function showOrderMsg(text, ok) {
        var el = document.getElementById('order-msg');
        if (!el) return;
        if (!text) {
            el.hidden = true;
            el.textContent = '';
            el.className = 'trade-order-msg';
            return;
        }
        el.hidden = false;
        el.textContent = text;
        el.className = 'trade-order-msg ' + (ok ? 'ok' : 'err');
    }

    function postOrder(offset) {
        var sym = selectedSymbol();
        if (!sym) { showOrderMsg('请选择品种', false); return; }
        var direction = dirSelect ? dirSelect.value : 'long';
        var price = entryPrice();
        if (!price || price <= 0) {
            showOrderMsg('无法获取有效价格，请先填写或刷新行情', false);
            return;
        }
        var lots = effectiveLots();
        var trailingBeEl = document.getElementById('trailing-be');
        var trailingOn = !!(trailingBeEl && trailingBeEl.checked);
        if (offset === 'open') {
            if (!isTradingSession) {
                showOrderMsg('不在交易时间段', false);
                return;
            }
            if (trailingOn && !(slInput && slInput.value)) {
                showOrderMsg('开启移动保本须填写止损价', false);
                return;
            }
            if (isAmountMode() && lots <= 0) {
                showOrderMsg('请填写止损，系统将按固定金额自动计算手数', false);
                return;
            }
            if (isFixedMode() && lots <= 0) {
                showOrderMsg('手数无效，请检查系统设置中的固定手数', false);
                return;
            }
            if (lots <= 0) {
                showOrderMsg('请填写有效手数', false);
                return;
            }
            var maxLots = maxLotsForSymbol(sym);
            if (maxLots > 0 && lots > maxLots) {
                showOrderMsg('手数 ' + lots + ' 超过最大手数 ' + maxLots + ' 手', false);
                return;
            }
        }
        var btnOpen = document.getElementById('btn-open');
        if (btnOpen) {
            btnOpen.disabled = true;
            btnOpen.textContent = '开仓中…';
        }
        showOrderMsg('开仓中…', true);
        var body = {
            symbol: sym,
            offset: offset,
            direction: direction,
            lots: lots,
            price: price,
            order_type: priceType,
            stop_loss: slInput && slInput.value ? parseFloat(slInput.value) : null,
            take_profit: (trailingOn || !(tpInput && tpInput.value)) ? null : parseFloat(tpInput.value),
            trailing_be: trailingOn
        };
        fetch('/api/trade/order', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify(body)
        }).then(function (r) { return r.json(); }).then(function (data) {
            if (!data.ok) {
                showOrderMsg(data.error || '下单失败', false);
                return;
            }
            var msg = data.message || (
                data.filled ? ('开仓成功 · ' + (data.lots || lots) + ' 手') :
                    ('委托已提交 · ' + (data.lots || lots) + ' 手挂单中')
            );
            showOrderMsg(msg, true);
            pollPositions();
            refreshQuote();
            setTimeout(function () { showOrderMsg(''); }, 4000);
        }).catch(function () {
            showOrderMsg('网络错误，请重试', false);
        }).finally(function () {
            if (btnOpen) {
                btnOpen.textContent = '开仓';
                updateSessionUi();
            }
        });
    }

    function buildPendingHtml(items) {
        if (!items || !items.length) return '';
        var rows = items.map(function (p) {
            var cls = p.order_kind === 'stop_loss' ? 'sl' : (p.order_kind === 'take_profit' ? 'tp' : 'ctp');
            var dismissBtn = p.monitor_id ?
                '<button type="button" class="pos-dismiss-btn" data-monitor-id="' + p.monitor_id + '">取消</button>' : '';
            return (
                '<div class="pos-pending-item ' + cls + '">' +
                '<span>' + (p.label || '挂单') + '</span>' +
                '<span class="pos-pending-right">' +
                '<strong>' + fmtNum(p.price) + '</strong> · ' + (p.lots || 1) + ' 手' +
                dismissBtn +
                '</span>' +
                '</div>'
            );
        }).join('');
        return '<div class="pos-pending-orders"><div class="pending-title">止盈止损监控</div>' + rows + '</div>';
    }

    function dismissMonitor(monitorId, btn, opts) {
        opts = opts || {};
        if (!monitorId) return;
        var isPending = !!opts.pending;
        if (isPending && !isTradingSession) {
            alert('不在交易时间段，无法撤单');
            return;
        }
        var confirmMsg = isPending
            ? '撤销该开仓委托？（将向柜台发送撤单）'
            : '取消该本地止盈止损监控？（不影响柜台委托）';
        if (!confirm(confirmMsg)) return;
        if (btn) {
            btn.disabled = true;
            btn.textContent = '取消中…';
        }
        var url = isPending ? '/api/trading/monitor/cancel-open' : '/api/trading/monitor/dismiss';
        fetch(url, {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ monitor_id: monitorId })
        })
            .then(function (r) { return r.json(); })
            .then(function (d) {
                if (!d.ok) throw new Error(d.error || '取消失败');
                pollPositions();
            })
            .catch(function (e) {
                alert(e.message || '取消失败');
                if (btn) {
                    btn.disabled = false;
                    btn.textContent = isPending ? '撤单' : '取消';
                }
            });
    }

    function bindCancelOpenButtons(root) {
        if (!root) return;
        root.querySelectorAll('[data-cancel-open]').forEach(function (btn) {
            btn.addEventListener('click', function () {
                if (!isTradingSession) {
                    alert('不在交易时间段，无法撤单');
                    return;
                }
                dismissMonitor(parseInt(btn.getAttribute('data-cancel-open'), 10), btn, { pending: true });
            });
        });
    }

    function bindPendingDismiss(root) {
        if (!root) return;
        root.querySelectorAll('[data-monitor-id]').forEach(function (btn) {
            btn.addEventListener('click', function () {
                var isPendingCancel = btn.getAttribute('data-pending-cancel') === '1';
                dismissMonitor(
                    parseInt(btn.getAttribute('data-monitor-id'), 10),
                    btn,
                    isPendingCancel ? { pending: true } : {}
                );
            });
        });
    }

    function bindCancelOrderButtons(root) {
        if (!root) return;
        root.querySelectorAll('[data-cancel-order]').forEach(function (btn) {
            btn.addEventListener('click', function () {
                if (!isTradingSession) {
                    alert('不在交易时间段，无法撤单');
                    return;
                }
                var orderId = decodeURIComponent(btn.getAttribute('data-cancel-order') || '');
                if (!orderId) return;
                if (!confirm('撤销该柜台委托？')) return;
                btn.disabled = true;
                btn.textContent = '撤单中…';
                fetch('/api/trading/order/cancel', {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({ order_id: orderId })
                }).then(function (r) { return r.json(); }).then(function (d) {
                    if (!d.ok) throw new Error(d.error || d.message || '撤单失败');
                    pollPositions();
                }).catch(function (e) {
                    alert(e.message || '撤单失败');
                    btn.disabled = false;
                    btn.textContent = '撤单';
                });
            });
        });
    }

    function slTpStatusHtml(row) {
        var parts = [];
        if (row.sl_order_active || row.sl_monitoring) {
            parts.push('<span class="text-profit">止损监控中</span>');
        } else if (row.stop_loss != null) {
            parts.push('<span class="text-muted">止损已设</span>');
        }
        if (!row.trailing_be) {
            if (row.tp_order_active || row.tp_monitoring) {
                parts.push('<span class="text-profit">止盈监控中</span>');
            } else if (row.take_profit != null) {
                parts.push('<span class="text-muted">止盈已设</span>');
            }
        }
        if (!parts.length) return '<span class="text-muted">未设置</span>';
        return parts.join(' · ');
    }

    function trailingStatusHtml(row) {
        if (row.trailing_be) {
            return '<span class="text-accent">已开启' +
                (row.trailing_r_locked ? '（锁' + row.trailing_r_locked + 'R）' : '') + '</span>';
        }
        return '<span class="text-muted">未开启</span>';
    }

    function posSymbolTitleHtml(row, extraBadges) {
        extraBadges = extraBadges || '';
        var name = row.symbol_name || row.symbol || '';
        var code = row.symbol_code || '';
        var mainBadge = row.symbol_is_main ? ' <span class="badge planned pos-main-badge">主力</span>' : '';
        var inner = name + mainBadge;
        if (code && String(name).toLowerCase() !== String(code).toLowerCase()) {
            inner += ' <span class="text-accent">' + code + '</span>';
        } else if (!name && code) {
            inner = '<span class="text-accent">' + code + '</span>';
        }
        if (marketNavEnabled && code) {
            var href = '/market?symbol=' + encodeURIComponent(code) + '&period=15m';
            inner = '<a href="' + href + '" class="pos-market-link" title="查看 15 分 K 线">' + inner + '</a>';
        }
        return inner + extraBadges;
    }

    function posSymbolSubHtml(row) {
        if (row.symbol_exchange) return row.symbol_exchange;
        return row.symbol_code || '';
    }

    function buildPendingOrderCard(row) {
        var dirBadge = row.direction_label || (row.direction === 'long' ? '做多' : '做空');
        var openT = (row.open_time || '').replace('T', ' ').slice(0, 16);
        var orderPx = row.order_price != null ? row.order_price : row.entry_price;
        var remainMin = row.pending_timeout_min != null
            ? row.pending_timeout_min
            : (row.auto_cancel_sec != null ? Math.max(1, Math.ceil(row.auto_cancel_sec / 60)) : 5);
        var cancelAllowed = row.cancel_allowed !== false && isTradingSession;
        var cancelBtn = '';
        if (row.can_cancel_order) {
            if (row.monitor_id) {
                cancelBtn = '<button type="button" class="pos-close-btn' + (cancelAllowed ? '' : ' is-session-off') + '"' +
                    (cancelAllowed ? '' : ' disabled title="不在交易时间段"') +
                    ' data-cancel-open="' + row.monitor_id + '">撤单</button>';
            } else if (row.order_id || row.vt_order_id) {
                cancelBtn = '<button type="button" class="pos-close-btn' + (cancelAllowed ? '' : ' is-session-off') + '"' +
                    (cancelAllowed ? '' : ' disabled title="不在交易时间段"') +
                    ' data-cancel-order="' + encodeURIComponent(row.vt_order_id || row.order_id) + '">撤单</button>';
            }
        }
        var pendingLabel = row.source_label || '挂单中';
        var isCloseOrder = pendingLabel.indexOf('平仓') >= 0;
        var metaLine =
            '状态 <strong class="text-accent">' + pendingLabel + '</strong>' +
            ' · 委托价 <strong>' + fmtNum(orderPx) + '</strong>' +
            (!row.trailing_be && row.rr_ratio != null ? ' · 盈亏比 <strong>' + row.rr_ratio + ':1</strong>' : '') +
            (row.stop_loss != null || (!row.trailing_be && row.take_profit != null) ? ' · ' + slTpStatusHtml(row) : '') +
            (row.trailing_be ? ' · 移动保本 ' + trailingStatusHtml(row) : '') +
            (!isCloseOrder ? ' · <span class="text-muted">约 ' + remainMin + ' 分钟内未成交自动撤单</span>' : '');
        return (
            '<div class="pos-card is-pending">' +
            '<div class="pos-card-head"><div><div class="title">' + posSymbolTitleHtml(row,
                ' <span class="badge dir">' + dirBadge + '</span>' +
                ' <span class="badge pending">' + (isCloseOrder ? '平仓委托' : '挂单中') + '</span>') + '</div>' +
            '<div class="text-muted pos-symbol-sub">' + posSymbolSubHtml(row) + '</div></div>' +
            '<div class="pos-card-actions">' + cancelBtn + '</div></div>' +
            '<div class="pos-card-meta pos-card-meta-line">' + metaLine + '</div>' +
            '<div class="pos-metrics">' +
            '<div class="cell"><label>委托手数</label><div><strong>' + row.lots + ' 手</strong></div></div>' +
            '<div class="cell"><label>委托价</label><div>' + fmtNum(orderPx) + '</div></div>' +
            '<div class="cell"><label>当前价格</label><div>' + (row.current_price != null ? fmtNum(row.current_price) : '--') + '</div></div>' +
            '<div class="cell pnl-pending"><label>状态</label><div class="text-accent">等待成交</div></div>' +
            '<div class="cell"><label>提交时间</label><div>' + (openT || '--') + '</div></div>' +
            '</div>' +
            buildPendingHtml(row.pending_orders) +
            '</div>'
        );
    }

    function buildPosCard(row) {
        if (row.order_state === 'pending') {
            return buildPendingOrderCard(row);
        }
        var pnlClass = row.float_pnl > 0 ? 'pnl-pos' : (row.float_pnl < 0 ? 'pnl-neg' : '');
        var pnlText = row.float_pnl != null ? ((row.float_pnl >= 0 ? '+' : '') + fmtNum(row.float_pnl) + ' 元') : '--';
        var dirBadge = row.direction_label || (row.direction === 'long' ? '做多' : '做空');
        var openT = (row.open_time || '').replace('T', ' ').slice(0, 16);
        var closeAllowed = row.close_allowed !== false && isTradingSession;
        var slTpBtn = (!row.stop_loss && !row.take_profit && !row.trailing_be && row.can_close) ?
            '<button type="button" class="pos-dismiss-btn pos-sl-btn" data-sl-tp="' +
            encodeURIComponent(JSON.stringify({
                symbol_code: row.symbol_code, direction: row.direction,
                lots: row.lots, entry_price: row.entry_price, monitor_id: row.monitor_id || null,
                trailing_be: !!row.trailing_be
            })) + '">设置止盈止损</button>' : '';
        var editPayload = encodeURIComponent(JSON.stringify({
            symbol_code: row.symbol_code, direction: row.direction,
            lots: row.lots, entry_price: row.entry_price, monitor_id: row.monitor_id || null,
            stop_loss: row.stop_loss, take_profit: row.take_profit,
            trailing_be: !!row.trailing_be
        }));
        var entrustBtn = row.can_close ?
            '<button type="button" class="pos-order-btn pos-entrust-btn" data-edit-sl-tp="' + editPayload + '">委托</button>' : '';
        var orderBtn = '';
        if (row.monitor_id && (row.stop_loss != null || row.take_profit != null) && row.can_place_orders) {
            orderBtn = '<button type="button" class="pos-order-btn" data-place-orders="' + row.monitor_id + '">清理旧挂单</button>';
        }
        var closePayload = encodeURIComponent(JSON.stringify({
            source: row.source, symbol_code: row.symbol_code, direction: row.direction,
            lots: row.lots, mark_price: row.mark_price, monitor_id: row.monitor_id || null
        }));
        var closeBtn = row.can_close ?
            '<button type="button" class="pos-close-btn' + (closeAllowed ? '' : ' is-session-off') + '" ' +
            (closeAllowed ? '' : 'disabled title="不在交易时间段"') +
            ' data-close="' + closePayload + '">平仓</button>' : '';
        var actionBtns = (entrustBtn || orderBtn || closeBtn) ?
            '<div class="pos-card-actions">' + entrustBtn + orderBtn + closeBtn + '</div>' : '';
        var metaLine =
            '来源 <strong>' + (row.source_label || 'CTP') + '</strong>' +
            (!row.trailing_be && row.rr_ratio != null ? ' · 盈亏比 <strong>' + row.rr_ratio + ':1</strong>' : '') +
            ' · 止损金额 <strong class="text-loss">' +
            (row.risk_amount != null ? fmtNum(row.risk_amount) + ' 元' : '--') + '</strong>' +
            (!row.trailing_be ?
                (' · 盈利金额 <strong class="text-profit">' +
                (row.reward_amount != null ? fmtNum(row.reward_amount) + ' 元' : '--') + '</strong>') : '') +
            ' · ' + slTpStatusHtml(row) +
            (row.trailing_be ? ' · 移动保本 ' + trailingStatusHtml(row) : '') +
            (slTpBtn ? ' · ' + slTpBtn : '') +
            (function () {
                if (row.order_state === 'pending' || !row.monitor_id) return '';
                if (ctpConnecting) {
                    return ' · <span class="text-muted">CTP 连接中…</span>';
                }
                if (row.sync_pending) {
                    return ' · <span class="text-muted">同步柜台中…</span>';
                }
                return '';
            }());
        var feeLabel = row.fee_source === 'ctp' ? '已扣手续费(柜台)' : '已扣手续费';
        var marginLabel = row.margin_source === 'ctp' ? '占用保证金(柜台)' : '占用保证金';
        var openLabel = '开仓';
        return (
            '<div class="pos-card">' +
            '<div class="pos-card-head"><div><div class="title">' + posSymbolTitleHtml(row,
                ' <span class="badge dir">' + dirBadge + '</span>') + '</div>' +
            '<div class="text-muted pos-symbol-sub">' + posSymbolSubHtml(row) + '</div></div>' +
            actionBtns + '</div>' +
            '<div class="pos-card-meta pos-card-meta-line">' + metaLine + '</div>' +
            '<div class="pos-metrics">' +
            '<div class="cell"><label>手数</label><div><strong>' + row.lots + ' 手</strong></div></div>' +
            '<div class="cell"><label>均价</label><div>' + fmtNum(row.entry_price) + '</div></div>' +
            '<div class="cell"><label>当前价格</label><div>' + (row.current_price != null ? fmtNum(row.current_price) : '--') + '</div></div>' +
            '<div class="cell"><label>' + marginLabel + '</label><div>' + (row.margin != null ? fmtNum(row.margin) + ' 元' : '--') + '</div></div>' +
            '<div class="cell"><label>仓位占比</label><div>' + (row.position_pct != null ? fmtNum(row.position_pct) + '%' : '--') + '</div></div>' +
            '<div class="cell ' + pnlClass + '"><label>浮盈亏</label><div>' + pnlText + '</div></div>' +
            '<div class="cell"><label>' + feeLabel + '</label><div>' + (row.est_fee != null ? fmtNum(row.est_fee) + ' 元' : '--') + '</div></div>' +
            '<div class="cell"><label>' + openLabel + '</label><div>' + (openT || '--') + '</div></div>' +
            '<div class="cell"><label>持仓</label><div>' + (row.holding_duration || '--') + '</div></div>' +
            '</div>' + buildPendingHtml(row.pending_orders) +
            '</div>'
        );
    }

    function placeMonitorOrders(monitorId, btn) {
        if (!monitorId) return;
        if (!confirm('清理该持仓在柜台残留的旧版止盈/止损挂单？')) return;
        if (btn) {
            btn.disabled = true;
            btn.textContent = '委托中…';
        }
        fetch('/api/trading/monitor/place-orders', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ monitor_id: monitorId })
        })
            .then(function (r) { return r.json(); })
            .then(function (d) {
                if (!d.ok) throw new Error(d.error || d.message || '委托失败');
                var msg = d.message || '委托已提交';
                if (d.skipped && d.skipped.length) msg += '\n' + d.skipped.join('\n');
                alert(msg);
                pollPositions();
            })
            .catch(function (e) {
                alert(e.message || '委托失败');
                if (btn) {
                    btn.disabled = false;
                    btn.textContent = '委托';
                }
            });
    }

    function bindPlaceOrderButtons(root) {
        if (!root) return;
        root.querySelectorAll('[data-place-orders]').forEach(function (btn) {
            btn.addEventListener('click', function () {
                placeMonitorOrders(parseInt(btn.getAttribute('data-place-orders'), 10), btn);
            });
        });
    }

    var slTpModalState = { payload: null, btn: null, btnLabel: '设置止盈止损' };

    function syncSlTpModalTrailingUi() {
        var trailingEl = document.getElementById('sl-tp-modal-trailing');
        var tpWrap = document.getElementById('sl-tp-modal-tp-wrap');
        var hint = document.getElementById('sl-tp-modal-trailing-hint');
        var on = !!(trailingEl && trailingEl.checked);
        if (tpWrap) tpWrap.hidden = on;
        if (hint) hint.hidden = !on;
        if (on) {
            var tpInput = document.getElementById('sl-tp-modal-tp');
            if (tpInput) tpInput.value = '';
        }
    }

    function closeSlTpModal() {
        var mask = document.getElementById('sl-tp-modal');
        if (mask) mask.classList.remove('show');
        slTpModalState.payload = null;
        slTpModalState.btn = null;
    }

    function openSlTpModal(payload, btn, btnLabel) {
        var mask = document.getElementById('sl-tp-modal');
        var title = document.getElementById('sl-tp-modal-title');
        var slInput = document.getElementById('sl-tp-modal-sl');
        var tpInput = document.getElementById('sl-tp-modal-tp');
        var trailingEl = document.getElementById('sl-tp-modal-trailing');
        if (!mask || !slInput) return;
        slTpModalState.payload = payload;
        slTpModalState.btn = btn || null;
        slTpModalState.btnLabel = btnLabel || '设置止盈止损';
        if (title) title.textContent = slTpModalState.btnLabel;
        slInput.value = payload.stop_loss != null && payload.stop_loss !== '' ? String(payload.stop_loss) : '';
        if (tpInput) {
            tpInput.value = payload.take_profit != null && payload.take_profit !== '' ? String(payload.take_profit) : '';
        }
        if (trailingEl) trailingEl.checked = !!payload.trailing_be;
        syncSlTpModalTrailingUi();
        mask.classList.add('show');
        slInput.focus();
    }

    function saveSlTpModal() {
        var payload = slTpModalState.payload;
        if (!payload) return;
        var btn = slTpModalState.btn;
        var btnLabel = slTpModalState.btnLabel;
        var slInput = document.getElementById('sl-tp-modal-sl');
        var tpInput = document.getElementById('sl-tp-modal-tp');
        var trailingEl = document.getElementById('sl-tp-modal-trailing');
        var trailingOn = !!(trailingEl && trailingEl.checked);
        var slRaw = slInput && slInput.value ? slInput.value.trim() : '';
        var tpRaw = trailingOn ? '' : (tpInput && tpInput.value ? tpInput.value.trim() : '');
        var sl = slRaw ? parseFloat(slRaw) : null;
        var tp = tpRaw ? parseFloat(tpRaw) : null;
        if (trailingOn && (sl == null || isNaN(sl))) {
            alert('移动保本须填写止损价');
            return;
        }
        if (sl == null && tp == null) {
            alert('请至少填写止损或止盈');
            return;
        }
        if (btn) {
            btn.disabled = true;
            btn.textContent = '保存中…';
        }
        var saveBtn = document.getElementById('sl-tp-modal-save');
        if (saveBtn) saveBtn.disabled = true;
        fetch('/api/trading/monitor/upsert', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            credentials: 'same-origin',
            body: JSON.stringify({
                symbol_code: payload.symbol_code,
                direction: payload.direction,
                lots: payload.lots,
                entry_price: payload.entry_price,
                monitor_id: payload.monitor_id || null,
                stop_loss: sl,
                take_profit: tp,
                trailing_be: trailingOn
            })
        })
            .then(function (r) {
                if (!r.ok) {
                    return r.json().catch(function () { return {}; }).then(function (d) {
                        throw new Error(d.error || ('HTTP ' + r.status));
                    });
                }
                return r.json();
            })
            .then(function (d) {
                if (!d.ok) throw new Error(d.error || '保存失败');
                closeSlTpModal();
                pollPositions();
            })
            .catch(function (e) {
                var msg = e.message || '保存失败';
                if (msg === 'Failed to fetch') msg = '网络请求失败，请检查服务是否运行';
                alert(msg);
                if (btn) {
                    btn.disabled = false;
                    btn.textContent = btnLabel;
                }
            })
            .finally(function () {
                if (saveBtn) saveBtn.disabled = false;
            });
    }

    function bindSlTpModal() {
        var mask = document.getElementById('sl-tp-modal');
        var trailingEl = document.getElementById('sl-tp-modal-trailing');
        var cancelBtn = document.getElementById('sl-tp-modal-cancel');
        var saveBtn = document.getElementById('sl-tp-modal-save');
        if (trailingEl) trailingEl.addEventListener('change', syncSlTpModalTrailingUi);
        if (cancelBtn) cancelBtn.addEventListener('click', closeSlTpModal);
        if (saveBtn) saveBtn.addEventListener('click', saveSlTpModal);
        if (mask) {
            mask.addEventListener('click', function (e) {
                if (e.target === mask) closeSlTpModal();
            });
        }
    }

    function promptStopTakeProfit(payload, btn, btnLabel) {
        openSlTpModal(payload, btn, btnLabel || '设置止盈止损');
    }

    function bindSlTpButtons(root) {
        if (!root) return;
        root.querySelectorAll('[data-sl-tp]').forEach(function (btn) {
            btn.addEventListener('click', function () {
                promptStopTakeProfit(
                    JSON.parse(decodeURIComponent(btn.getAttribute('data-sl-tp'))), btn, '设置止盈止损'
                );
            });
        });
        root.querySelectorAll('[data-edit-sl-tp]').forEach(function (btn) {
            btn.addEventListener('click', function () {
                promptStopTakeProfit(
                    JSON.parse(decodeURIComponent(btn.getAttribute('data-edit-sl-tp'))), btn, '委托'
                );
            });
        });
    }

    function closePosition(payload, btn) {
        if (!isTradingSession) {
            alert('不在交易时间段，无法平仓');
            return;
        }
        function doClose(price) {
            if (!price || price <= 0) { alert('无法获取现价'); return; }
            if (!confirm('确认平仓 ' + payload.lots + ' 手？')) return;
            if (btn) {
                btn.disabled = true;
                btn.textContent = '平仓中…';
            }
            fetch('/api/trading/close', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify(Object.assign({}, payload, { price: price }))
            }).then(function (r) { return r.json(); }).then(function (d) {
                if (!d.ok) {
                    alert(d.error || '平仓失败');
                    if (btn) {
                        btn.disabled = false;
                        btn.textContent = '平仓';
                    }
                    return;
                }
                if (btn) btn.textContent = '已平仓';
                pollPositions();
            }).catch(function () {
                if (btn) {
                    btn.disabled = false;
                    btn.textContent = '平仓';
                }
            });
        }
        if (payload.mark_price > 0) {
            doClose(payload.mark_price);
            return;
        }
        fetch('/api/trade/quote?symbol=' + encodeURIComponent(payload.symbol_code) + '&lots=' + payload.lots)
            .then(function (r) { return r.json(); })
            .then(function (d) { doClose(d.price); });
    }

    function pollPositions() {
        if (!list) return;
        fetch('/api/trading/live')
            .then(function (r) {
                if (!r.ok) throw new Error('HTTP ' + r.status);
                return r.json();
            })
            .then(function (data) {
                applyPositionsData(data);
            })
            .catch(function () {
                if (!positionsRendered && list.innerHTML.indexOf('pos-card') < 0) {
                    list.innerHTML = '<div class="empty-hint text-loss">持仓加载失败</div>';
                }
            });
    }

    function connectPositionStream() {
        if (positionSource) {
            positionSource.close();
            positionSource = null;
        }
        positionSource = new EventSource('/api/trading/stream');
        positionSource.addEventListener('positions', function (ev) {
            try {
                applyPositionsData(JSON.parse(ev.data));
            } catch (e) { /* ignore */ }
        });
        positionSource.onerror = function () {
            if (positionSource) {
                positionSource.close();
                positionSource = null;
            }
            setTimeout(connectPositionStream, 3000);
        };
    }

    function loadRecSortPrefs() {
        try {
            var raw = sessionStorage.getItem(REC_SORT_CACHE);
            if (!raw) return;
            var p = JSON.parse(raw);
            if (p.key) recSortKey = p.key;
            if (typeof p.desc === 'boolean') recSortDesc = p.desc;
        } catch (e) { /* ignore */ }
        try {
            var ind = sessionStorage.getItem(REC_INDUSTRY_CACHE);
            if (ind != null) recIndustryFilter = ind;
        } catch (e2) { /* ignore */ }
    }

    function saveRecSortPrefs() {
        try {
            sessionStorage.setItem(REC_SORT_CACHE, JSON.stringify({ key: recSortKey, desc: recSortDesc }));
        } catch (e) { /* ignore */ }
    }

    function saveRecIndustryPref() {
        try {
            sessionStorage.setItem(REC_INDUSTRY_CACHE, recIndustryFilter || '');
        } catch (e) { /* ignore */ }
    }

    function syncRecSortUi() {
        var sel = document.getElementById('rec-sort-key');
        var btn = document.getElementById('rec-sort-dir');
        var indSel = document.getElementById('rec-industry-filter');
        if (sel) sel.value = recSortKey;
        if (btn) btn.textContent = recSortDesc ? '↓' : '↑';
        if (indSel) indSel.value = recIndustryFilter || '';
    }

    function filterRecommendRows(rows) {
        if (!recIndustryFilter) return (rows || []).slice();
        return (rows || []).filter(function (r) {
            return (r.category || '') === recIndustryFilter;
        });
    }

    function countByCategory(rows) {
        var counts = {};
        (rows || []).forEach(function (r) {
            var cat = r.category || '其他';
            counts[cat] = (counts[cat] || 0) + 1;
        });
        return counts;
    }

    function updateRecStats(allRows, visibleRows) {
        var el = document.getElementById('rec-stats');
        if (!el) return;
        var total = (allRows || []).length;
        var shown = (visibleRows || []).length;
        if (!total) {
            el.textContent = '';
            return;
        }
        var parts = [];
        if (recIndustryFilter) {
            parts.push('筛选 <strong>' + shown + '</strong> / 共 ' + total + ' 个品种');
        } else {
            parts.push('共 <strong>' + total + '</strong> 个品种');
        }
        var order = productCategories.length ? productCategories.slice() : [];
        var counts = countByCategory(recIndustryFilter ? visibleRows : allRows);
        Object.keys(counts).forEach(function (k) {
            if (order.indexOf(k) < 0) order.push(k);
        });
        var breakdown = order.filter(function (cat) { return counts[cat]; }).map(function (cat) {
            return cat + ' ' + counts[cat];
        });
        if (breakdown.length) parts.push(breakdown.join(' · '));
        el.innerHTML = parts.join(' · ');
    }

    var TREND_SORT_RANK = { break_long: 0, break_short: 0, long: 1, short: 2, range: 3, '': 9 };
    var GAP_SORT_RANK = { up: 2, down: 1, none: 0, '': -1 };

    function sortRecommendRows(rows) {
        var list = (rows || []).slice();
        var key = recSortKey || 'trend';
        var desc = recSortDesc;
        list.sort(function (a, b) {
            var av, bv, as, bs;
            if (key === 'gap') {
                av = GAP_SORT_RANK[a.gap || ''] !== undefined ? GAP_SORT_RANK[a.gap || ''] : -1;
                bv = GAP_SORT_RANK[b.gap || ''] !== undefined ? GAP_SORT_RANK[b.gap || ''] : -1;
                as = Math.abs(Number(a.gap_pct) || 0);
                bs = Math.abs(Number(b.gap_pct) || 0);
            } else if (key === 'volume') {
                av = Number(a.volume) || 0;
                bv = Number(b.volume) || 0;
                as = bs = 0;
            } else if (key === 'amplitude') {
                av = Number(a.yesterday_amplitude_pct) || 0;
                bv = Number(b.yesterday_amplitude_pct) || 0;
                as = bs = 0;
            } else {
                av = TREND_SORT_RANK[a.trend || ''] !== undefined ? TREND_SORT_RANK[a.trend || ''] : 9;
                bv = TREND_SORT_RANK[b.trend || ''] !== undefined ? TREND_SORT_RANK[b.trend || ''] : 9;
                as = Number(a.max_lots) || 0;
                bs = Number(b.max_lots) || 0;
            }
            if (av !== bv) return desc ? bv - av : av - bv;
            if (as !== bs) return desc ? bs - as : as - bs;
            return String(a.name || '').localeCompare(String(b.name || ''), 'zh-CN');
        });
        return list;
    }

    function fmtRecVolume(v) {
        if (v === null || v === undefined) return '—';
        var n = Number(v);
        if (!isFinite(n)) return '—';
        if (n >= 10000) return (n / 10000).toFixed(1) + '万';
        return String(Math.round(n));
    }

    function fmtRecTurnover(v) {
        if (v === null || v === undefined) return '—';
        var n = Number(v);
        if (!isFinite(n)) return '—';
        if (n >= 1e8) return (n / 1e8).toFixed(2) + '亿';
        if (n >= 1e4) return (n / 1e4).toFixed(1) + '万';
        return String(Math.round(n));
    }

    function changeCellHtml(r) {
        if (r.yesterday_change == null) return '—';
        var ch = Number(r.yesterday_change);
        var cls = ch > 0 ? 'rec-change-up' : (ch < 0 ? 'rec-change-down' : '');
        var txt = (ch > 0 ? '+' : '') + ch;
        if (r.yesterday_change_pct != null) {
            var pct = Number(r.yesterday_change_pct);
            txt += ' (' + (pct > 0 ? '+' : '') + pct + '%)';
        }
        return '<span class="' + cls + '">' + txt + '</span>';
    }

    function trendBadgeHtml(r) {
        var label = r.trend_label || '';
        if (!label || label === '—') return '—';
        var cls = 'planned';
        if (r.trend === 'break_long' || r.trend === 'break_short') cls = 'break';
        else if (r.trend === 'long') cls = 'profit';
        else if (r.trend === 'short') cls = 'loss';
        var title = '';
        if (r.trend_overlap_pct != null) title = ' title="近3日重叠 ' + r.trend_overlap_pct + '%"';
        var prefix = r.trend_transition ? '★ ' : '';
        return '<span class="badge trend-badge ' + cls + '"' + title + '>' + prefix + label + '</span>';
    }

    function gapBadgeHtml(r) {
        var label = r.gap_label || '';
        if (!label || label === '—') return '—';
        var cls = 'planned';
        if (r.gap === 'up') cls = 'profit';
        else if (r.gap === 'down') cls = 'loss';
        var title = '';
        if (r.gap_pct != null && r.gap !== 'none') {
            title = ' title="跳空 ' + (Number(r.gap_pct) > 0 ? '+' : '') + r.gap_pct + '%"';
        }
        return '<span class="badge gap-badge ' + cls + '"' + title + '>' + label + '</span>';
    }

    function fmtRecNum(v) {
        if (v == null || v === '') return '—';
        var n = Number(v);
        if (!isFinite(n)) return '—';
        return String(n);
    }

    function recSpecSuffix(r) {
        return r.spec_source === 'ctp' ? ' <span class="text-muted">(柜台)</span>' : '';
    }

    function recSymbolCellHtml(r) {
        var code = r.main_code || r.ths || '';
        var nameCls = r.trend_transition ? ' class="trend-name"' : '';
        var name = r.name || '';
        var nightTag = r.has_night_session ? ' <span class="night-session-tag">夜盘</span>' : '';
        if (marketNavEnabled && r.main_code) {
            var href = '/market?symbol=' + encodeURIComponent(r.main_code) + '&period=d';
            return (
                '<td><a href="' + href + '" class="rec-market-link" title="查看日线 K 线">' +
                '<strong' + nameCls + '>' + name + nightTag + '</strong> ' +
                '<span class="text-accent">' + r.main_code + '</span></a></td>'
            );
        }
        return (
            '<td><strong' + nameCls + '>' + name + nightTag + '</strong> ' +
            '<span class="text-accent">' + code + '</span></td>'
        );
    }

    function renderRecommendRows(rows) {
        if (!recommendList) return;
        if (!rows.length) {
            var emptyMsg = recIndustryFilter
                ? '当前行业下暂无推荐品种'
                : '当前资金下暂无推荐品种（每日后台刷新）';
            recommendList.innerHTML = '<tr><td colspan="' + REC_COLSPAN + '" class="empty-hint">' + emptyMsg + '</td></tr>';
            return;
        }
        recommendList.innerHTML = rows.map(function (r) {
            var rowCls = 'rec-' + (r.status || '');
            if (r.trend_transition) rowCls += ' rec-trend-break';
            return (
                '<tr class="' + rowCls + '">' +
                recSymbolCellHtml(r) +
                '<td>' + (r.exchange || '') + '</td>' +
                '<td>' + (r.category || '—') + '</td>' +
                '<td>' + trendBadgeHtml(r) + '</td>' +
                '<td>' + gapBadgeHtml(r) + '</td>' +
                '<td>' + (r.price != null ? r.price : '—') + '</td>' +
                '<td>' + (r.prev_close != null ? r.prev_close : '—') + '</td>' +
                '<td>' + (r.today_open != null ? r.today_open : '—') + '</td>' +
                '<td>' + changeCellHtml(r) + '</td>' +
                '<td>' + (r.yesterday_amplitude_pct != null ? r.yesterday_amplitude_pct + '%' : '—') + '</td>' +
                '<td>' + fmtRecVolume(r.volume) + '</td>' +
                '<td>' + fmtRecTurnover(r.turnover) + '</td>' +
                '<td>' + fmtRecNum(r.mult) + recSpecSuffix(r) + '</td>' +
                '<td>' + fmtRecNum(r.tick_size) + recSpecSuffix(r) + '</td>' +
                '<td>' + (r.margin_one_lot != null ? r.margin_one_lot + (r.margin_source === 'ctp' ? ' <span class="text-muted">(柜台)</span>' : '') : '—') + '</td>' +
                '<td>' + (r.open_fee_one_lot != null ? r.open_fee_one_lot : '—') + '</td>' +
                '<td>' + (r.max_lots != null && r.max_lots > 0 ? r.max_lots : '—') + '</td>' +
                '<td><span class="badge ' + (r.status === 'ok' ? 'profit' : 'planned') + '">' + (r.status_label || '') + '</span></td>' +
                '</tr>'
            );
        }).join('');
    }

    function renderRecommendTable() {
        var filtered = filterRecommendRows(recRowsRaw);
        var sorted = sortRecommendRows(filtered);
        updateRecStats(recRowsRaw, sorted);
        renderRecommendRows(sorted);
    }

    function renderRecommendations(data) {
        if (!recommendList || !data) return;
        updateRecommendMaxMaps(data);
        var recCap = document.getElementById('rec-capital');
        if (recCap && data.capital != null) recCap.textContent = Number(data.capital).toFixed(2);
        var recUpdated = document.getElementById('rec-updated');
        if (recUpdated && data.updated_at) {
            recUpdated.textContent = '每日后台更新 · 最近 ' + data.updated_at;
        }
        var rows = data.rows || [];
        recRowsRaw = rows.slice();
        if (!rows.length) {
            recommendList.innerHTML = '<tr><td colspan="' + REC_COLSPAN + '" class="empty-hint">当前资金下暂无推荐品种（每日后台刷新）</td></tr>';
            updateRecStats([], []);
            return;
        }
        renderRecommendTable();
    }

    function initRecommendSortControls() {
        loadRecSortPrefs();
        syncRecSortUi();
        var sel = document.getElementById('rec-sort-key');
        var btn = document.getElementById('rec-sort-dir');
        var indSel = document.getElementById('rec-industry-filter');
        if (indSel) {
            indSel.addEventListener('change', function () {
                recIndustryFilter = indSel.value || '';
                saveRecIndustryPref();
                renderRecommendTable();
            });
        }
        if (sel) {
            sel.addEventListener('change', function () {
                recSortKey = sel.value || 'trend';
                saveRecSortPrefs();
                renderRecommendTable();
            });
        }
        if (btn) {
            btn.addEventListener('click', function () {
                recSortDesc = !recSortDesc;
                saveRecSortPrefs();
                syncRecSortUi();
                renderRecommendTable();
            });
        }
        if (recRowsRaw.length) updateRecStats(recRowsRaw, filterRecommendRows(recRowsRaw));
    }

    function connectRecommendStream() {
        if (recommendSource) { recommendSource.close(); recommendSource = null; }
        recommendSource = new EventSource('/api/recommend/stream');
        recommendSource.addEventListener('recommend', function (ev) {
            try { renderRecommendations(JSON.parse(ev.data)); } catch (e) { /* ignore */ }
        });
        recommendSource.onerror = function () {
            if (recommendSource) { recommendSource.close(); recommendSource = null; }
            setTimeout(connectRecommendStream, 5000);
        };
    }

    document.querySelectorAll('.price-tab').forEach(function (btn) {
        btn.addEventListener('click', function () {
            setPriceType(btn.getAttribute('data-type'));
            scheduleQuote();
        });
    });

    if (symInput) {
        symInput.addEventListener('input', function () {
            selectedMaxLots = null;
            scheduleQuote();
            scheduleAutoCalc();
            checkLotsLimit();
        });
        symInput.addEventListener('symbol-selected', function (ev) {
            var item = ev.detail || {};
            selectedMaxLots = item.max_lots > 0 ? item.max_lots : null;
            scheduleQuote();
            scheduleAutoCalc();
            checkLotsLimit();
        });
    }
    if (lotsCalc) lotsCalc.addEventListener('input', checkLotsLimit);
    if (slInput) {
        slInput.addEventListener('input', function () {
            scheduleAutoCalc();
            updateRRDisplay();
        });
    }
    if (tpInput) {
        tpInput.addEventListener('input', function () {
            scheduleAutoCalc();
            updateRRDisplay();
        });
    }
    if (dirSelect) dirSelect.addEventListener('change', function () {
        scheduleAutoCalc();
        updateRRDisplay();
    });
    var trailingBeEl = document.getElementById('trailing-be');
    if (trailingBeEl) {
        trailingBeEl.addEventListener('change', updateTrailingBeUi);
        updateTrailingBeUi();
    }
    if (priceInput) {
        priceInput.addEventListener('input', function () {
            if (priceType === 'limit') priceInput.dataset.manual = '1';
            scheduleAutoCalc();
            updateRRDisplay();
        });
    }

    var btnOpen = document.getElementById('btn-open');
    if (btnOpen) btnOpen.addEventListener('click', function () { postOrder('open'); });

    var btnConnect = document.getElementById('btn-ctp-connect');
    if (btnConnect) {
        btnConnect.addEventListener('click', function () {
            requestCtpConnect(true);
        });
    }

    function initCtpOnLoad() {
        fetch('/api/ctp/status')
            .then(function (r) { return r.json(); })
            .then(function (d) {
                var st = d.status || {};
                if (typeof st.auto_connect_enabled === 'boolean') {
                    ctpAutoConnectEnabled = st.auto_connect_enabled;
                }
                updateCtpConnectButtonState();
                syncCtpBadgeFromStatus(st);
                if (st.disabled_hint) {
                    showCtpError(st.disabled_hint);
                } else if (st.last_error) {
                    showCtpError(st.last_error);
                }
                if (st.connected) pollPositions();
            })
            .catch(function () {});
    }

    function cleanupTradePage() {
        if (sessionClockTickTimer) {
            clearInterval(sessionClockTickTimer);
            sessionClockTickTimer = null;
        }
        if (positionSource) {
            positionSource.close();
            positionSource = null;
        }
        if (recommendSource) {
            recommendSource.close();
            recommendSource = null;
        }
        if (quoteTimer) {
            clearTimeout(quoteTimer);
            quoteTimer = null;
        }
        if (calcTimer) {
            clearTimeout(calcTimer);
            calcTimer = null;
        }
    }

    function bootTradePage() {
        loadTradeConfig();
        if (!list && !orderList) return;
        updateCtpConnectButtonState();
        setPriceType('limit');
        if (isFixedMode() && lotsCalc) {
            lotsCalc.value = String(window.TRADE_FIXED_LOTS || 1);
            if (lotsInput) lotsInput.value = lotsCalc.value;
        }
        var cached = loadPosCache();
        if (cached) {
            if (cached.ctp_status) {
                cached.ctp_status = Object.assign({}, cached.ctp_status, { connecting: false });
            }
            if (cached.ctp_status && cached.ctp_status.connected) {
                applyPositionsData(cached);
            }
        }
        pollPositions();
        connectPositionStream();
        bindSlTpModal();
        initCtpOnLoad();
        connectRecommendStream();
        initRecommendSortControls();
        if (window.__RECOMMEND_ROWS__ && window.__RECOMMEND_ROWS__.length) {
            recRowsRaw = window.__RECOMMEND_ROWS__.slice();
            renderRecommendTable();
        }
        fetch('/api/recommend/list')
            .then(function (r) { return r.json(); })
            .then(function (data) { if (data.ok) renderRecommendations(data); })
            .catch(function () {});
        updateSessionUi();
        updateRRDisplay();
        scheduleQuote();
        scheduleAutoCalc();
    }

    document.addEventListener('visibilitychange', function () {
        if (document.visibilityState === 'visible' && list && !positionSource) {
            connectPositionStream();
        }
    });

    function startTradePage() {
        if (!document.querySelector('.trade-page')) return;
        bootTradePage();
    }

    if (window.qihuoPageBoot) window.qihuoPageBoot(startTradePage, '.trade-page');
    else if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', startTradePage);
    else startTradePage();
    window.addEventListener('pagehide', cleanupTradePage);
})();