using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using UnityEngine;
using UnityEngine.UI;
using Decentralized.Domain;

namespace Decentralized
{
    /// <summary>
    /// 交易终端窗口：首页三个入口（银行、Poinbase、Web3）加报告。银行是真实的信用点（存取、房租）；
    /// Poinbase 是合规交易所；Web3 是去中心化交易和链上钱包。每次操作后按当前页重建窗口。
    /// </summary>
    public static class TerminalWindow
    {
        public const string Id = "pd_terminal";
        private const float WinW = 828f, WinH = 680f, ScreenW = 768f, ScreenH = 578f, Bezel = 6f;
        private const float LeftW = 420f, RightW = 310f;
        private enum Page { Home, Bank, Poinbase, Web3, Wallets }

        private static Page _page = Page.Home;
        private sealed class EditPrice { public GameItem Item; public BmSale Sale; public string Id; public long Ref; }
        private static EditPrice _edit;
        private static string _editPrice = "";
        private static string _amount = "";
        private static string _message;

        private static readonly List<GameObject> _picked = new List<GameObject>();
        private static readonly List<Image> _clear = new List<Image>();
        private static readonly List<PledgerSkin.RowDef> _rows = new List<PledgerSkin.RowDef>();

        public static void Open()
        {
            if (Session.Data == null) return;
            var b = CustomUIManager.Window(Id, L.T("term.title"));
            if (b == null) return;
            _picked.Clear(); _clear.Clear(); _rows.Clear();
            b.SetSize(WinW, WinH).SetDraggable(true).SetCloseOnEscape(true).UseMachineryStyle();
            // 黑色外边框包裹墨水屏
            b.BeginPanel(ScreenW + Bezel * 2, ScreenH + Bezel * 2, TextAnchor.MiddleCenter, Bezel + 3f, 0f);
            var bezel = b.Last.image;
            b.BeginPanel(ScreenW, ScreenH, TextAnchor.UpperLeft, 12f, 4f);
            var screen = b.CurrentContainer;
            var paper = b.Last.image;
            b.BeginRow(4f, TextAnchor.MiddleLeft);
            foreach (Page p in Enum.GetValues(typeof(Page)))
            {
                var page = p;
                string name = L.T("tab." + p.ToString().ToLowerInvariant());
                PledgerSkin.Pick(b, name, page == _page, () => { _page = page; _message = null; _edit = null; Open(); }, _picked);
            }
            b.End();
            b.AddSeparator();
            b.BeginScroll(ScreenH - 52f);
            _clear.Add(b.Last.image);
            switch (_page)
            {
                case Page.Home: HomePage(b); break;
                case Page.Bank: BankPage(b); break;
                case Page.Poinbase: ExchangePage(b, Venue.Exchange); break;
                case Page.Web3: Web3Page(b); break;
                case Page.Wallets: WalletsPage(b); break;
                default: break;
            }
            b.End();
            if (!string.IsNullOrEmpty(_message)) b.AddLabel(_message, "term_note");
            b.End();
            b.End();
            var win = b.Show();
            Log.Guard("交易终端外观", () => PledgerSkin.Apply(win, screen, bezel, paper, _picked, _clear, _rows));
        }

        private static void Go(Page p) { _page = p; _message = null; _edit = null; Open(); }

        /// <summary>钱包那边交易落地后刷新终端（开着的话），带上结果消息。</summary>
        public static void Refresh(string message)
        {
            if (message != null) _message = message;
            if (CustomUIManager.Instance != null && CustomUIManager.Instance.IsOpen(Id)) Open();
        }

        private static void Entry(CustomUIBuilder b, string icon, string name, string line1, string line2, Page target)
        {
            b.BeginPanel(230f, 250f, TextAnchor.UpperCenter, 10f, 6f);
            var cardImg = b.Last.image;
            cardImg.sprite = MachineryStyle.White;
            cardImg.color = PledgerSkin.RowNormal;
            b.AddImage(ModInfo.Id + ":" + icon, 96f, 96f);
            b.AddHeader(name);
            b.AddLabel(line1);
            if (line2 != null) b.AddLabel(line2, "entry_l2_dim");
            b.AddFlexibleSpace();
            b.AddButton(L.T("home.enter"), () => Go(target));
            b.End();
        }

        private static void HomePage(CustomUIBuilder b)
        {
            var d = Session.Data;
            double chain = d.ChainValue(Session.Price);
            b.AddLabel(L.T("home.summary", PlayerStore.Instance.playerCash, Fmt.Credits(chain)));
            b.AddSpace(6f);
            b.BeginRow(8f, TextAnchor.UpperCenter);
            Entry(b, "ui_bank", L.T("entry.bank"), L.T("entry.bank.l1"), L.T("entry.bank.l2", PlayerStore.Instance.playerCash), Page.Bank);
            Entry(b, "ui_poinbase", L.T("entry.poinbase"), L.T("entry.poinbase.l1"), null, Page.Poinbase);
            Entry(b, "ui_web3", L.T("entry.web3"), L.T("entry.web3.l1"), L.T("entry.web3.l2", Fmt.Credits(chain)), Page.Web3);
            b.End();
            b.AddSpace(8f);
            b.AddSeparator();
            var r = d.LastNight;
            b.AddLabel(r == null ? L.T("report.none") : L.T("home.lastnight", r.Day, Fmt.Num(r.Mined), r.PoweredRigs, r.Rigs), "report_dim");
        }

        private static void Cell(CustomUIBuilder b, float w, string text, bool header = false, TextAnchor align = TextAnchor.MiddleLeft)
        {
            b.BeginPanel(w, 26f, align, 0f, 0f);
            _clear.Add(b.Last.image);
            b.AddLabel(header ? "<b>" + text + "</b>" : text);
            b.End();
        }

        private static void TableRow(CustomUIBuilder b, float totalW, float[] widths, TextAnchor[] aligns, string[] cells, bool selected = false, Action onClick = null)
        {
            b.BeginPanel(totalW, 28f, TextAnchor.MiddleLeft, 4f, 0f);
            _rows.Add(new PledgerSkin.RowDef { Root = b.Last.root, Image = b.Last.image, Selected = selected, OnClick = onClick });
            b.BeginRow(0f, TextAnchor.MiddleLeft);
            for (int i = 0; i < widths.Length; i++)
            {
                var align = (aligns != null && i < aligns.Length) ? aligns[i] : (i == 0 ? TextAnchor.MiddleLeft : TextAnchor.MiddleRight);
                Cell(b, widths[i], i < cells.Length ? cells[i] : "", false, align);
            }
            b.End();
            b.End();
        }

        private static void TableRow(CustomUIBuilder b, float[] widths, params string[] cells) =>
            TableRow(b, widths.Sum() + 8f, widths, null, cells, false, null);

        private static void TableHeader(CustomUIBuilder b, float totalW, float[] widths, TextAnchor[] aligns, params string[] cells)
        {
            b.BeginPanel(totalW, 26f, TextAnchor.MiddleLeft, 4f, 0f);
            _clear.Add(b.Last.image);
            b.BeginRow(0f, TextAnchor.MiddleLeft);
            for (int i = 0; i < widths.Length; i++)
            {
                var align = (aligns != null && i < aligns.Length) ? aligns[i] : (i == 0 ? TextAnchor.MiddleLeft : TextAnchor.MiddleRight);
                Cell(b, widths[i], i < cells.Length ? cells[i] : "", true, align);
            }
            b.End();
            b.End();
        }

        private static void TableHeader(CustomUIBuilder b, float[] widths, params string[] cells) =>
            TableHeader(b, widths.Sum() + 8f, widths, null, cells);

        /// <summary>左右分栏：左边是账户与持仓表格，右边是操作区。</summary>
        private static void Columns(CustomUIBuilder b, Action<CustomUIBuilder> left, Action<CustomUIBuilder> right)
        {
            b.BeginRow(10f);
            b.BeginPanel(LeftW, -1f, TextAnchor.UpperLeft, 4f, 4f);
            _clear.Add(b.Last.image);
            left(b);
            b.End();
            b.BeginPanel(RightW, -1f, TextAnchor.UpperLeft, 4f, 6f);
            _clear.Add(b.Last.image);
            right(b);
            b.End();
            b.End();
        }

        private static void AmountRow(CustomUIBuilder b)
        {
            b.AddLabel(L.T("trade.amount"));
            b.BeginPanel(RightW - 30f, -1f, TextAnchor.MiddleCenter, 0f, 0f);
            _clear.Add(b.Last.image);
            b.AddInput("0", _amount, s => _amount = s, "amount", s => _amount = s);
            b.End();
        }

        /// <summary>银行：真实的信用点。现金、房租，以及信用点与 Poinbase 账户（CRC）之间的存取。</summary>
        private static void BankPage(CustomUIBuilder b)
        {
            var ps = PlayerStore.Instance;
            var w = new[] { 180f, 220f };
            Columns(b, l =>
            {
                l.AddHeader(L.T("entry.bank"));
                TableRow(l, w, L.T("bank.cash.k"), ps.playerCash.ToString());
                TableRow(l, w, L.T("bank.rent.k"), L.T("bank.rent.v", Session.Rent(), ps.GetRentDayCounter()));
                TableRow(l, w, L.T("bank.crc.k"), Fmt.Num(Session.Data.Poinbase.Get(Assets.CRC)));
            }, r =>
            {
                r.AddHeader(L.T("bank.ops"));
                AmountRow(r);
                AmlPreview(r);
                r.AddSpace(6f);
                r.AddButton(L.T("trade.deposit"), Deposit);
                r.Last?.SetPreferredSize(RightW - 30f, 28f);
                r.AddSpace(4f);
                r.AddButton(L.T("trade.withdraw"), Withdraw);
                r.Last?.SetPreferredSize(RightW - 30f, 28f);
            });
        }

        /// <summary>提取前的合规审查提示：仅保留账户污点比例（额度与命中概率按设计不公开）。</summary>
        private static void AmlPreview(CustomUIBuilder b)
        {
            var pb = Session.Data.Poinbase;
            double total = pb.Value(Session.Price);
            double taintRatio = total > 0 ? pb.Taint / total : 0;
            b.AddSeparator();
            b.AddLabel(L.T("aml.taint", (int)Math.Round(taintRatio * 100)), taintRatio > 0.05 ? "aml_note" : "aml_dim");
        }

        private static readonly float[] StableW = { 80f, 100f, 220f };

        private static string StableStatus(Stablecoins st, string asset, int day)
        {
            double p = st.Price(asset);
            if (asset == Assets.CRA && st.CraWarning(day)) return L.T("stable.warn");
            if (asset == Assets.CRA && p < 0.97) return L.T("stable.spiral");
            return p < 0.99 ? L.T("stable.depeg") : L.T("stable.ok");
        }

        /// <summary>稳定币行情：价格与状态（脱锚、预兆）。</summary>
        private static void StableTable(CustomUIBuilder b)
        {
            var st = Session.Data.Stable;
            int day = StoreStation.GetDayCounter();
            b.AddSeparator();
            TableHeader(b, StableW, L.T("col.asset"), L.T("col.peg"), L.T("col.status"));
            foreach (var a in new[] { Assets.CRC, Assets.CRT, Assets.CRA })
                TableRow(b, StableW, a, Fmt.Num(st.Price(a)), StableStatus(st, a, day));
        }

        private static void TradeRows(CustomUIBuilder b, Venue venue)
        {
            foreach (var pool in Session.Data.Market.Pools.Where(x => x.Venue == venue))
            {
                var p = pool;
                b.AddLabel(L.T("trade.pair", p.Base, p.Quote, L.T("venue." + p.Venue)) + "  " + L.T("trade.price", Fmt.Num(p.Price)));
                b.BeginRow(4f);
                b.AddButton(L.T("trade.buy"), () => Trade(p, buy: true));
                b.AddButton(L.T("trade.sell"), () => Trade(p, buy: false));
                b.End();
            }
        }

        private static readonly float[] HoldW = { 80f, 100f, 110f, 110f };
        private static readonly TextAnchor[] HoldAligns = { TextAnchor.MiddleLeft, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleRight };

        private static void Holdings(CustomUIBuilder b, Wallet w, Func<string, bool> show)
        {
            TableHeader(b, HoldW.Sum() + 8f, HoldW, HoldAligns, L.T("col.asset"), L.T("col.amount"), L.T("col.value"), L.T("col.avg"));
            bool any = false;
            foreach (var kv in w.Balances.OrderBy(k => k.Key).Where(k => show(k.Key)))
            {
                any = true;
                string asset = kv.Key;
                bool selected = (_page == Page.Poinbase && asset == _poinAsset);
                TableRow(b, HoldW.Sum() + 8f, HoldW, HoldAligns,
                    new[] { kv.Key, Fmt.Num(kv.Value), Fmt.Credits(kv.Value * Session.Price(kv.Key)), AvgText(w, kv.Key) },
                    selected,
                    () => { if (_page == Page.Poinbase) { _poinAsset = asset; Open(); } });
            }
            if (!any) b.AddLabel(L.T(w == Session.Data.Poinbase ? "poin.empty" : "wallet.empty"), "hold_empty_dim");
            foreach (var kv in w.Frozen.OrderBy(k => k.Key).Where(k => show(k.Key)))
                b.AddLabel(L.T("wallet.frozen", kv.Key, Fmt.Num(kv.Value), w.FrozenUntil.TryGetValue(kv.Key, out var u) ? u : 0), "hold_frozen_note");
        }

        /// <summary>Poinbase：合规交易所。左边账户持仓，右边交易；信用点的存取在银行。</summary>
        private enum PoinTab { Spot, Perp }
        private static PoinTab _poinTab = PoinTab.Spot;

        private static void ExchangePage(CustomUIBuilder b, Venue venue)
        {
            var d = Session.Data;
            var w = d.Poinbase;
            b.BeginRow(4f);
            foreach (PoinTab t in Enum.GetValues(typeof(PoinTab)))
            {
                var tab = t;
                string name = L.T("poin.sub." + t.ToString().ToLowerInvariant());
                PledgerSkin.Pick(b, name, tab == _poinTab, () => { _poinTab = tab; _message = null; Open(); }, _picked);
            }
            b.End();
            if (_poinTab == PoinTab.Perp) { PerpPage(b); return; }
            Columns(b, l =>
            {
                CandleChart.AddPicker(l, "poin", Assets.PSC, Open, _picked);
                l.AddSeparator();
                l.AddHeader(L.T("poin.account.h"));
                Holdings(l, w, a => true);
                if (w.Taint > 0.5) l.AddLabel(L.T("wallet.taint", Fmt.Credits(w.Taint)), "taint_note");
                l.AddSeparator();
                l.BeginRow(8f, TextAnchor.MiddleLeft);
                l.AddLabel(L.T("poin.deposit", d.Address("poinbase")), "deposit_dim");
                l.AddButton(L.T("hw.copy"), () => { Clipboard.Copy(d.Address("poinbase")); _message = L.T("hw.copied.addr", d.Address("poinbase")); Open(); });
                l.End();
            }, r =>
            {
                r.AddHeader(L.T("trade.h"));
                AmountRow(r);
                TradeRows(r, venue);
                r.AddSeparator();
                r.BeginRow(4f);
                foreach (var a in new[] { Assets.CRC, Assets.PSC })
                {
                    var asset = a;
                    PledgerSkin.Pick(r, asset, asset == _poinAsset, () => { _poinAsset = asset; Open(); }, _picked);
                }
                r.End();
                r.AddButton(L.T("poin.out", WalletWindow.NameOf(d.Hot)), PoinbaseOut);
            });
        }

        private static string _poinAsset = Assets.CRC;

        private static string _perpProduct = "PSC";
        private static bool _perpLong = true;
        private static int _perpLev = 3;
        private static readonly float[] PerpW = { 90f, 85f, 80f, 90f, 55f };
        private static readonly TextAnchor[] PerpAligns = { TextAnchor.MiddleLeft, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleRight };

        private static double PerpSpot(string p) => p == "SPARK" ? Session.Data.Stable.Spark : Session.Data.Market.Price;

        /// <summary>永续页：保证金账户、仓位、资金费与保险基金；开仓、追加保证金、平仓。Poinbase 是托管账户，不用签名。</summary>
        private static void PerpPage(CustomUIBuilder b)
        {
            var d = Session.Data;
            var bk = d.Perps;
            var acct = d.Poinbase;
            int day = StoreStation.GetDayCounter();
            if (_perpLev > PerpBook.MaxLeverage(_perpProduct)) _perpLev = PerpBook.MaxLeverage(_perpProduct);
            Columns(b, l =>
            {
                l.AddHeader(L.T("perp.h"));
                l.AddLabel(L.T("perp.acct", Fmt.Num(acct.Avail(Assets.CRC))));
                if (bk.Debt > 0) l.AddLabel(L.T("perp.debt", Fmt.Credits(bk.Debt), Math.Max(0, Tuning.PerpDebtDays - (day - bk.DebtSince))), "perp_debt_note");
                if (bk.Banned(day)) l.AddLabel(L.T("perp.banned", bk.BannedUntil - day + 1), "perp_banned_note");
                l.AddSeparator();
                if (bk.Positions.Count == 0) l.AddLabel(L.T("perp.none"), "perp_none_dim");
                else
                {
                    TableHeader(l, PerpW.Sum() + 8f, PerpW, PerpAligns, L.T("perp.col.pos"), L.T("perp.col.notional"), L.T("perp.col.price"), L.T("perp.col.pnl"), L.T("perp.col.liq"));
                    foreach (var p in bk.Positions)
                    {
                        var pos = p;
                        double spot = PerpSpot(pos.Product);
                        bool selPos = pos.Product == _perpProduct;
                        TableRow(l, PerpW.Sum() + 8f, PerpW, PerpAligns,
                            new[] {
                                pos.Product + " " + L.T(pos.Long ? "perp.long" : "perp.short") + " " + Math.Round(pos.Leverage, 1) + "×",
                                Fmt.Credits(pos.Notional(spot)),
                                Fmt.Num(pos.Entry) + " → " + Fmt.Num(spot),
                                Fmt.Credits(pos.Pnl(spot)),
                                Fmt.Num(pos.LiqPrice)
                            },
                            selPos,
                            () => { _perpProduct = pos.Product; Open(); });
                    }
                }
                l.AddSeparator();
                foreach (var p in PerpBook.Products)
                    l.AddLabel(L.T("perp.rate", p, Fmt.Num(PerpSpot(p)), (bk.Rate(p) * 100).ToString("+0.00;-0.00;0.00", CultureInfo.InvariantCulture)), "perp_rate_dim");
                l.AddLabel(L.T("perp.fund", Fmt.Credits(bk.InsuranceFund)), "perp_fund_dim");
                l.AddSeparator();
                CandleChart.Add(l, "perp", _perpProduct);
            }, r =>
            {
                r.AddHeader(L.T("perp.open"));
                r.BeginRow(4f);
                foreach (var p in PerpBook.Products)
                {
                    var product = p;
                    PledgerSkin.Pick(r, product, product == _perpProduct, () => { _perpProduct = product; Open(); }, _picked);
                }
                r.End();
                r.BeginRow(4f);
                PledgerSkin.Pick(r, L.T("perp.long"), _perpLong, () => { _perpLong = true; Open(); }, _picked);
                PledgerSkin.Pick(r, L.T("perp.short"), !_perpLong, () => { _perpLong = false; Open(); }, _picked);
                r.End();
                r.BeginRow(4f);
                foreach (int lev in new[] { 1, 2, 3, 5 })
                {
                    if (lev > PerpBook.MaxLeverage(_perpProduct)) continue;
                    int lv = lev;
                    PledgerSkin.Pick(r, lv + "×", lv == _perpLev, () => { _perpLev = lv; Open(); }, _picked);
                }
                r.End();
                r.AddLabel(L.T("perp.margin"));
                AmountRow(r);
                if (double.TryParse((_amount ?? "").Trim(), NumberStyles.Float, CultureInfo.InvariantCulture, out double m) && m > 0)
                {
                    double notional = m * _perpLev, spot = PerpSpot(_perpProduct), exec = bk.Exec(spot, notional, _perpLong, day);
                    var ghost = new PerpPosition { Long = _perpLong, Entry = exec, Size = notional / exec, Margin = m };
                    r.AddLabel(L.T("perp.preview", Fmt.Credits(notional), Fmt.Num(exec)), "perp_preview_dim");
                    r.AddLabel(L.T("perp.preview2", Fmt.Num(notional * Tuning.PerpFee), Fmt.Num(ghost.LiqPrice)), "perp_preview_dim");
                }
                r.BeginRow(6f);
                r.AddButton(L.T("perp.do.open"), PerpOpen);
                r.AddButton(L.T("perp.do.add"), PerpAdd);
                r.AddButton(L.T("perp.do.close"), PerpClose);
                r.End();
            });
        }

        private static readonly float[] PoolW = { 110f, 50f, 64f, 64f, 50f, 78f };
        private static readonly TextAnchor[] PoolAligns = { TextAnchor.MiddleLeft, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleRight };

        /// <summary>第三方收益池：日息、储备、时间锁、审计、我的存款，存入 / 取出（合约调用，签名）。是不是骗局看不见。</summary>
        private static void YieldPools(CustomUIBuilder l, Wallet w, int day)
        {
            var sc = Session.Data.Scams;
            var pools = sc.Pools.Where(p => !p.Closed || p.Pending.Any(q => ChainAddress.Same(q.Wallet, w.Address))).ToList();
            l.AddHeader(L.T("pool.h"));
            if (pools.Count == 0) { l.AddLabel(L.T("pool.none"), "pool_none_dim"); return; }
            TableHeader(l, PoolW.Sum() + 8f, PoolW, PoolAligns, L.T("pool.col.name"), L.T("pool.col.rate"), L.T("pool.col.reserve"), L.T("pool.col.lock"), L.T("pool.col.audit"), L.T("pool.col.mine"));
            foreach (var p in pools)
            {
                var pp = p;
                string mine = Fmt.Num(p.Of(w.Address)) + (p.Pending.Any(q => ChainAddress.Same(q.Wallet, w.Address)) ? "+" + L.T("pool.pending") : "");
                TableRow(l, PoolW.Sum() + 8f, PoolW, PoolAligns,
                    new[] {
                        p.Name + (p.Closed ? " " + L.T("pool.closed") : ""),
                        (p.Rate * 100).ToString("0", CultureInfo.InvariantCulture) + "%",
                        Fmt.Num(p.Reserve),
                        L.T(p.Timelock ? "pool.yes" : "pool.no"),
                        L.T(p.Audited ? "pool.yes" : "pool.no"),
                        mine
                    });
                if (p.Closed) continue;
                l.BeginRow(4f);
                l.AddButton(L.T("pool.deposit"), () => PoolCall(pp, true));
                if (p.Of(w.Address) > 0) l.AddButton(L.T(p.Timelock ? "pool.withdraw.lock" : "pool.withdraw", Tuning.YieldLockDays), () => PoolCall(pp, false));
                l.End();
                l.AddSpace(2f);
            }
        }

        private static void PoolCall(YieldPool p, bool deposit)
        {
            var d = Session.Data;
            var w = d.Hot;
            double v = 0;
            if (deposit)
            {
                if (!ReadAmount(out v)) return;
                if (w.Avail(Assets.CRC) + 1e-9 < v) { _message = L.T("msg.balance"); Open(); return; }
                if (p.Total + v > p.Cap + 1e-9) { _message = L.T("pool.err.cap", Fmt.Num(Math.Max(0, p.Cap - p.Total))); Open(); return; }
            }
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRC, Amount = v, Spend = deposit ? v : 0, FeeAsset = deposit ? null : BestFeeAsset(w),
                Summary = L.T(deposit ? "pool.sum.in" : "pool.sum.out", p.Name, Fmt.Num(deposit ? v : p.Of(w.Address))),
                Execute = pw =>
                {
                    int day = StoreStation.GetDayCounter();
                    if (deposit) _message = d.Scams.Deposit(p, pw, v, Session.Price) ? L.T("pool.done.in", Fmt.Num(v), p.Name) : L.T("msg.balance");
                    else
                    {
                        double amt = p.Of(pw.Address), got = d.Scams.Withdraw(p, pw, day);
                        _message = amt <= 0 ? L.T("pool.err.none") : got > 0 ? L.T("pool.done.out", Fmt.Num(got)) : L.T("pool.done.lock", Fmt.Num(amt), day + Tuning.YieldLockDays);
                    }
                    Session.Save();
                    Open();
                },
            });
        }

        /// <summary>空投页：可领取的空投（名字、奖励、要求的授权）和当前钱包的授权（可撤销）。领取和撤销都是合约调用，签名时 PLEDGER 上会写明授权范围。</summary>
        private static void AirdropPage(CustomUIBuilder b)
        {
            var d = Session.Data;
            var w = d.Hot;
            int day = StoreStation.GetDayCounter();
            Columns(b, l =>
            {
                l.AddHeader(L.T("air.h"));
                var list = d.Scams.Airdrops.Where(a => !a.Claimed && a.Expire >= day).ToList();
                if (list.Count == 0) l.AddLabel(L.T("air.none"), "air_none_dim");
                foreach (var a in list)
                {
                    var ad = a;
                    l.AddLabel(L.T("air.row", a.Name, Fmt.Num(a.Reward), ApproveText(a.Approve, a.Asset), a.Expire));
                    l.AddButton(L.T("air.claim"), () => ClaimAirdrop(ad));
                    l.AddSpace(4f);
                }
            }, r =>
            {
                r.AddHeader(L.T("air.approvals", WalletWindow.NameOf(w)));
                var aps = d.Scams.Approvals.Where(x => ChainAddress.Same(x.Wallet, w.Address)).ToList();
                if (aps.Count == 0) r.AddLabel(L.T("air.approvals.none"), "air_app_none_dim");
                foreach (var ap in aps)
                {
                    int id = ap.Id;
                    r.AddLabel(L.T("air.approval", ap.Spender, ApproveText(ap.Limit, ap.Asset)));
                    r.AddButton(L.T("air.revoke"), () => RevokeApproval(id));
                    r.AddSpace(4f);
                }
            });
        }

        private static string ApproveText(double limit, string asset) =>
            limit <= 0 ? L.T("air.noapprove") : double.IsPositiveInfinity(limit) ? L.T("air.unlimited", asset) : L.T("air.limited", asset, Fmt.Num(limit));

        private static void ClaimAirdrop(Airdrop a)
        {
            var d = Session.Data;
            _message = L.T("hw.wait");
            Open();
            var w = d.Hot;
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRC, Amount = 0, Spend = 0, FeeAsset = BestFeeAsset(w),
                Summary = L.T("air.sum", a.Name, ApproveText(a.Approve, a.Asset)),
                Execute = pw =>
                {
                    var ap = d.Scams.Claim(a, pw, StoreStation.GetDayCounter(), d.Rng, out double got);
                    _message = L.T("air.claimed", Fmt.Num(got));
                    Log.Info($"领取空投 {a.Name}：得 {got}，授权 {(ap == null ? "无" : ap.Asset + " " + ap.Limit)}，骗局 {a.Scam}");
                    Session.Save();
                    Open();
                },
            });
        }

        private static void RevokeApproval(int id)
        {
            var d = Session.Data;
            var ap = d.Scams.Approvals.Find(x => x.Id == id);
            if (ap == null) return;
            var w = d.Own(ap.Wallet) ?? d.Hot;
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRC, Amount = 0, Spend = 0, FeeAsset = BestFeeAsset(w),
                Summary = L.T("air.revoke.sum", ap.Spender, ap.Asset),
                Execute = pw =>
                {
                    _message = ChainAddress.Same(pw.Address, ap.Wallet) && d.Scams.Revoke(id) ? L.T("air.revoked") : L.T("air.err.wallet");
                    Session.Save();
                    Open();
                },
            });
        }

        private enum YieldTab { Pools, Mine }
        private static YieldTab _yieldTab = YieldTab.Pools;

        /// <summary>理财页：两个子页。"存钱"是 NPC 开的第三方收益池，你存进去吃利息（可能是骗局）；"自己发"是你当庄开高息理财（庞氏），下层的人往你这儿存。</summary>
        private static void YieldPage(CustomUIBuilder b)
        {
            b.BeginRow(4f);
            foreach (YieldTab t in Enum.GetValues(typeof(YieldTab)))
            {
                var tab = t;
                string name = L.T("yield.sub." + t.ToString().ToLowerInvariant());
                PledgerSkin.Pick(b, name, tab == _yieldTab, () => { _yieldTab = tab; _message = null; Open(); }, _picked);
            }
            b.End();
            if (_yieldTab == YieldTab.Mine) { PonziPage(b); return; }
            var d = Session.Data;
            var w = d.Hot;
            int day = StoreStation.GetDayCounter();
            Columns(b, l => YieldPools(l, w, day), r =>
            {
                r.AddHeader(L.T("pool.side.h"));
                r.AddLabel(L.T("predict.acct", WalletWindow.NameOf(w), Fmt.Num(w.Avail(Assets.CRC))));
                AmountRow(r);
            });
        }

        private static double _ponziRate = 0.04;
        private static bool _ponziConfirm;

        private static int LowerRep() => StoreReputation.GetStoreReputation(StoreReputation.FACTION_LOWER_LEVEL)?.GetReputation() ?? 0;

        /// <summary>理财页：开一个高息理财产品，下层的人往里存钱；池子随时可以卷走，但每晚都有被举报的风险。开张和卷走是链上合约调用，用当前钱包，要签名；之后每晚垫付的利息从发行人钱包出。</summary>
        private static void PonziPage(CustomUIBuilder b)
        {
            var d = Session.Data;
            var pz = d.Ponzi;
            int day = StoreStation.GetDayCounter();
            Columns(b, l =>
            {
                l.AddHeader(L.T("ponzi.h"));
                var issuer = pz.Open ? d.Own(pz.Wallet) ?? d.Hot : d.Hot;
                l.AddLabel(L.T("ponzi.acct", WalletWindow.NameOf(issuer), Fmt.Num(issuer.Avail(Assets.CRC))));
                l.AddSeparator();
                if (pz.Open)
                {
                    l.AddLabel(L.T("ponzi.rate", (pz.Rate * 100).ToString("0", CultureInfo.InvariantCulture)));
                    l.AddLabel(L.T("ponzi.pool", Fmt.Num(pz.Pool), Fmt.Num(Ponzi.Cap(day))));
                    l.AddLabel(L.T("ponzi.inflow", Fmt.Num(pz.Inflow)));
                    l.AddLabel(L.T("ponzi.interest", Fmt.Num(pz.Pool * pz.Rate)));
                    l.AddLabel(L.T("ponzi.own", Fmt.Num(pz.OwnPaid)));
                    double risk = Ponzi.ReportChance(pz.Rate, pz.Pool, day);
                    l.AddLabel(L.T("ponzi.wind", L.T(risk < 0.05 ? "ponzi.wind.low" : risk < 0.10 ? "ponzi.wind.mid" : "ponzi.wind.high")), risk >= 0.10 ? "ponzi_risk_note" : risk >= 0.05 ? "ponzi_risk_dim" : "ponzi_risk_ok");
                }
                else l.AddLabel(pz.Done ? L.T("ponzi.done") : day < Tuning.PonziMinDay ? L.T("ponzi.early", Tuning.PonziMinDay) : L.T("ponzi.idle"), "ponzi_status_dim");
            }, r =>
            {
                if (pz.Open)
                {
                    r.AddHeader(L.T("ponzi.ops"));
                    r.AddButton(_ponziConfirm ? L.T("ponzi.rug.confirm", Fmt.Num(pz.Pool)) : L.T("ponzi.rug", Fmt.Num(pz.Pool)), () =>
                    {
                        if (!_ponziConfirm) { _ponziConfirm = true; Open(); return; }
                        _ponziConfirm = false;
                        var iw = d.Own(pz.Wallet) ?? d.Hot;
                        _message = L.T("hw.wait");
                        Open();
                        WalletWindow.OpenForBill(new WalletWindow.Bill
                        {
                            Contract = true, Asset = Assets.CRC, Amount = 0, Spend = 0, FeeAsset = BestFeeAsset(iw),
                            Summary = L.T("ponzi.rug.sum", Fmt.Num(pz.Pool)),
                            Execute = pw =>
                            {
                                if (!pz.Open || !ChainAddress.Same(pw.Address, pz.Wallet)) { _message = L.T("ponzi.err.wallet"); Open(); return; }
                                double take = pz.Rug(pw);
                                PlayerStore.Instance.secData.CommitCrime("FRAUD", (int)Tuning.PonziCrime);
                                StoreReputation.GetStoreReputation(StoreReputation.FACTION_LOWER_LEVEL)?.SetReputation(0);
                                News.Show("pd_news_ponzi_rug_" + day, L.T("news.ponzi.rug.title"), L.T("news.ponzi.rug.desc"), 4);
                                Log.Info($"卷走理财池 {take:0}，自己垫的利息 {pz.OwnPaid:0}，钱包 {pw.Address}");
                                _message = L.T("ponzi.rugged", Fmt.Num(take));
                                Session.Save();
                                Open();
                            },
                        });
                    });
                    return;
                }
                if (pz.Done || day < Tuning.PonziMinDay) return;
                r.AddHeader(L.T("ponzi.open"));
                r.BeginRow(4f);
                foreach (double rate in Tuning.PonziRates)
                {
                    double rt = rate;
                    string t = (rate * 100).ToString("0", CultureInfo.InvariantCulture) + "%";
                    PledgerSkin.Pick(r, t, Math.Abs(rt - _ponziRate) < 1e-9, () => { _ponziRate = rt; Open(); }, _picked);
                }
                r.End();
                r.AddLabel(L.T("ponzi.ad", Fmt.Num(Tuning.PonziAdCost)), "ponzi_ad_dim");
                r.AddButton(L.T("ponzi.start"), () =>
                {
                    if (d.Hot.Avail(Assets.CRC) + 1e-9 < Tuning.PonziAdCost) { _message = L.T("ponzi.err"); Open(); return; }
                    double rate = _ponziRate;
                    _message = L.T("hw.wait");
                    Open();
                    WalletWindow.OpenForBill(new WalletWindow.Bill
                    {
                        Contract = true, Asset = Assets.CRC, Amount = Tuning.PonziAdCost,
                        Summary = L.T("ponzi.start.sum", (rate * 100).ToString("0", CultureInfo.InvariantCulture), Fmt.Num(Tuning.PonziAdCost)),
                        Execute = pw =>
                        {
                            _message = pz.Start(pw, rate, StoreStation.GetDayCounter()) ? L.T("ponzi.started") : L.T("ponzi.err");
                            Session.Save();
                            Open();
                        },
                    });
                });
            });
        }

        private static int _predPick;
        private enum PredTab { Markets, Intel }
        private static PredTab _predTab = PredTab.Markets;

        private static string P2(double x) => x.ToString("0.00", CultureInfo.InvariantCulture);

        /// <summary>预测页：盘口（左边列表与最近结果，右边选中盘口的价格、线索、买卖）和情报（情报贩子）。下注和卖出是链上合约调用，用当前钱包的 CRC，要在钱包上签名；持仓记在签名的钱包名下。</summary>
        private static void PredictPage(CustomUIBuilder b)
        {
            if (_predTab == PredTab.Intel && !Unlock.BlackUnlocked) _predTab = PredTab.Markets;
            if (Unlock.BlackUnlocked)
            {
                b.BeginRow(4f);
                foreach (PredTab t in Enum.GetValues(typeof(PredTab)))
                {
                    var tab = t;
                    string name = L.T("predict.tab." + t.ToString().ToLowerInvariant());
                    PledgerSkin.Pick(b, name, tab == _predTab, () => { _predTab = tab; _message = null; Open(); }, _picked);
                }
                b.End();
            }
            if (_predTab == PredTab.Intel) { IntelPage(b); return; }
            var d = Session.Data;
            var bk = d.Predict;
            var w = d.Hot;
            int day = StoreStation.GetDayCounter();
            var open = bk.Markets.Where(m => m.Outcome < 0).OrderBy(m => m.IsOpen(day) ? 0 : 1).ThenBy(m => m.FromDay).ThenBy(m => m.Id).ToList();
            var sel = open.Find(m => m.Id == _predPick) ?? open.FirstOrDefault();
            _predPick = sel?.Id ?? 0;
            Columns(b, l =>
            {
                l.AddHeader(L.T("predict.h"));
                l.AddLabel(L.T("predict.acct", WalletWindow.NameOf(w), Fmt.Num(w.Avail(Assets.CRC))));
                l.AddSeparator();
                // 选中 PSC 价格盘时，在列表上方画日 K 和阈值线
                if (sel != null && sel.Kind == PredictKind.Price) { CandleChart.Add(l, "predict", Assets.PSC, sel.Param); l.AddSeparator(); }
                if (open.Count == 0) l.AddLabel(L.T("predict.none"), "pred_none_dim");
                foreach (var m in open)
                {
                    var mk = m;
                    var all = bk.PosAll(m.Id);
                    string q = PredictGame.Question(m);
                    l.BeginRow(4f);
                    PledgerSkin.Pick(l, q, m.Id == _predPick, () => { _predPick = mk.Id; _message = null; Open(); }, _picked);
                    l.End();
                    string state = m.IsOpen(day) ? "" : "　" + L.T("predict.closed");
                    string move = m.PrevP >= 0 && Math.Abs(m.PYes - m.PrevP) >= 0.02 ? L.T("predict.row.move", P2(m.PrevP), m.PYes > m.PrevP ? "↑" : "↓") : "";
                    l.AddLabel(L.T("predict.row", P2(m.PYes), P2(1 - m.PYes)) + move + (all.Count > 0 ? "　" + L.T("predict.held", L.T(all[0].Yes ? "predict.yes" : "predict.no"), Fmt.Num(all.Sum(x => x.Shares)), Fmt.Num(all.Sum(x => x.Cost))) : "") + state, "pred_row_dim");
                }
                if (bk.Stats.Count > 0)
                {
                    l.AddSeparator();
                    l.AddLabel(L.T("predict.stats.h"));
                    foreach (var kv in bk.Stats.OrderByDescending(k => k.Value.Count))
                        l.AddLabel(L.T("predict.stats.row", L.T("predict.kind." + kv.Key), kv.Value.Count, P2(kv.Value.AvgP0), (kv.Value.HitRate * 100).ToString("0", CultureInfo.InvariantCulture)), "pred_stat_dim");
                }
                if (bk.Recent.Count > 0)
                {
                    l.AddSeparator();
                    foreach (var r in Enumerable.Reverse(bk.Recent))
                        l.AddLabel(L.T("predict.result", r.Day, r.Title, r.Outcome == 2 ? L.T("predict.void") : L.T(r.Outcome == 1 ? "predict.yes" : "predict.no"), r.Held ? (r.Pnl >= 0 ? "+" : "") + Fmt.Num(r.Pnl) : "—"), "pred_res_dim");
                }
            }, r =>
            {
                if (sel == null) { r.AddHeader(L.T("predict.h")); return; }
                r.AddHeader(L.T("predict.pick"));
                r.AddLabel(PredictGame.Question(sel));
                r.AddLabel(L.T("predict.price", P2(sel.PYes), P2(1 - sel.PYes)));
                foreach (var clue in PredictGame.Clues(sel)) r.AddLabel("· " + clue, "pred_clue_dim");
                foreach (var pos in bk.PosAll(sel.Id))
                {
                    var ow = d.Own(pos.Wallet);
                    r.AddLabel(L.T("predict.pos", ow != null ? WalletWindow.NameOf(ow) : pos.Wallet, L.T(pos.Yes ? "predict.yes" : "predict.no"), Fmt.Num(pos.Shares)));
                    if (pos.Wallet == w.Address)
                    {
                        r.AddLabel(L.T("predict.pos3", P2(pos.Cost / pos.Shares), P2(sel.PriceOf(pos.Yes))), "pred_pos_dim");
                        r.AddLabel(L.T("predict.pos2", Fmt.Num(pos.Cost), Fmt.Num(pos.Shares)), "pred_pos_dim");
                        r.AddLabel(L.T("predict.pos4", Fmt.Num(sel.SellValue(pos.Yes, pos.Shares) * (1 - Tuning.PredictFee))), "pred_pos_dim");
                    }
                }
                if (!sel.IsOpen(day)) { r.AddLabel(L.T("predict.closed.note"), "pred_closed_note"); return; }
                AmountRow(r);
                if (double.TryParse((_amount ?? "").Trim(), NumberStyles.Float, CultureInfo.InvariantCulture, out double v) && v > 0 && v < 1e7)
                {
                    foreach (bool yes in new[] { true, false })
                    {
                        double shares = sel.SharesFor(yes, v / (1 + Tuning.PredictFee));
                        r.AddLabel(L.T("predict.preview", L.T(yes ? "predict.yes" : "predict.no"), Fmt.Num(shares), P2(v / shares), Fmt.Num(shares - v)), "pred_prev_dim");
                    }
                }
                r.BeginRow(6f);
                r.AddButton(L.T("predict.buy.yes"), () => PredictBuy(sel, true));
                r.AddButton(L.T("predict.buy.no"), () => PredictBuy(sel, false));
                r.End();
                r.AddSpace(4f);
                r.AddButton(L.T("predict.sell"), () => PredictSell(sel));
            });
        }

        /// <summary>情报页：局势简报，以及对派系行动、矿机时代盘口的内幕消息。付款是 CRT 的合约调用（销毁），要签名。</summary>
        private static void IntelPage(CustomUIBuilder b)
        {
            var d = Session.Data;
            var w = d.Hot;
            int day = StoreStation.GetDayCounter();
            Columns(b, l =>
            {
                l.AddHeader(L.T("intel.h"));
                if (!PredictGame.BrokerOpen) { l.AddLabel(L.T("intel.locked", Tuning.IntelRep), "intel_locked_note"); return; }
                l.AddLabel(L.T("predict.acct.crt", WalletWindow.NameOf(w), Fmt.Num(w.Avail(Assets.CRT))));
                l.AddButton(L.T("intel.brief.buy", Fmt.Num(Tuning.IntelBriefPrice)), IntelBuyBrief);
                l.AddSeparator();
                if (d.Brief.Count == 0) l.AddLabel(L.T("intel.brief.none"), "intel_brief_dim");
                else
                {
                    l.AddLabel(L.T("intel.brief.day", d.BriefDay), "intel_day_dim");
                    foreach (var line in d.Brief) l.AddLabel(line, "intel_line_dim");
                }
            }, r =>
            {
                r.AddHeader(L.T("intel.tips.h"));
                if (!PredictGame.BrokerOpen) return;
                var list = d.Predict.Markets.Where(m => PredictGame.Tippable(m, day)).OrderBy(m => m.FromDay).ToList();
                if (list.Count == 0) r.AddLabel(L.T("intel.tips.none"), "intel_tips_none_dim");
                foreach (var m in list)
                {
                    var mk = m;
                    r.AddLabel(PredictGame.Question(m));
                    var tip = d.Predict.TipFor(m.Id);
                    if (tip != null) { r.AddLabel(L.T("predict.clue.tip", L.T("predict.tier." + tip.Tier), L.T(tip.Claim ? "predict.yes" : "predict.no")), "intel_tip_dim"); continue; }
                    for (int t = 0; t < 3; t++)
                    {
                        int tier = t;
                        r.AddButton(L.T("intel.tip.buy", (int)Math.Round(Tuning.IntelTipAcc[t] * 100), Fmt.Num(Tuning.IntelTipPrice[t] * m.MaxLoss)), () => IntelBuyTip(mk, tier));
                        r.Last?.SetPreferredSize(RightW - 30f, 28f);
                        if (t < 2) r.AddSpace(2f);
                    }
                }
            });
        }

        private static void IntelBuyBrief()
        {
            var d = Session.Data;
            double price = Tuning.IntelBriefPrice;
            if (d.Hot.Avail(Assets.CRT) + 1e-9 < price) { _message = L.T("intel.err.funds"); Open(); return; }
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRT, Amount = price, Summary = L.T("intel.brief.sum", Fmt.Num(price)),
                Execute = pw =>
                {
                    if (pw.Avail(Assets.CRT) + 1e-9 < price) { _message = L.T("intel.err.funds"); Open(); return; }
                    pw.Spend(Assets.CRT, price, Session.Price);
                    int day = StoreStation.GetDayCounter();
                    bool fake = d.Rng.Chance(Tuning.IntelFake);
                    d.Brief = PredictGame.MakeBrief(fake, day); d.BriefDay = day;
                    Log.Info($"局势简报：{(fake ? "假情报" : "真")}，{string.Join(" | ", d.Brief)}");
                    _message = L.T("intel.brief.done");
                    Session.Save();
                    Open();
                },
            });
        }

        private static void IntelBuyTip(PredictMarket m, int tier)
        {
            var d = Session.Data;
            double price = Tuning.IntelTipPrice[tier] * m.MaxLoss;
            if (d.Hot.Avail(Assets.CRT) + 1e-9 < price) { _message = L.T("intel.err.funds"); Open(); return; }
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRT, Amount = price, Summary = L.T("intel.tip.sum", Fmt.Num(price), PredictGame.Question(m)),
                Execute = pw =>
                {
                    int day = StoreStation.GetDayCounter();
                    var truth = PredictGame.Truth(m);
                    if (pw.Avail(Assets.CRT) + 1e-9 < price || truth == null || !m.IsOpen(day) || d.Predict.TipFor(m.Id) != null) { _message = L.T("intel.err.funds"); Open(); return; }
                    pw.Spend(Assets.CRT, price, Session.Price);
                    var tip = PredictBook.MakeTip(m, truth.Value, tier, d.Rng);
                    d.Predict.Tips.Add(tip);
                    Log.Info($"内幕消息 #{m.Id} 第 {tier + 1} 档：说{(tip.Claim ? "是" : "否")}，真相{(truth.Value ? "是" : "否")}");
                    _message = L.T("intel.tip.done", L.T(tip.Claim ? "predict.yes" : "predict.no"));
                    Session.Save();
                    Open();
                },
            });
        }

        private static void PredictBuy(PredictMarket m, bool yes)
        {
            if (!ReadAmount(out double v)) return;
            var d = Session.Data;
            var w = d.Hot;
            if (w.Avail(Assets.CRC) + 1e-9 < v) { _message = L.T("predict.err.Funds"); Open(); return; }
            if (d.Predict.PosAll(m.Id).Any(x => x.Yes != yes)) { _message = L.T("predict.err.Opposite"); Open(); return; }
            string side = L.T(yes ? "predict.yes" : "predict.no");
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRC, Amount = v,
                Summary = L.T("predict.sum.buy", PredictGame.Question(m), side, Fmt.Num(v)),
                Execute = pw =>
                {
                    int day = StoreStation.GetDayCounter();
                    bool insider = PredictGame.Known(m, yes);
                    var res = d.Predict.Buy(pw, m, yes, v, day, Session.Price, insider, out double shares);
                    _message = res == PredictResult.Ok ? L.T("predict.bought", side, Fmt.Num(shares), Fmt.Num(v)) : L.T("predict.err." + res);
                    if (res == PredictResult.Ok) { Log.Info($"预测下注 #{m.Id} {(yes ? "是" : "否")} {shares:0.0} 份，花 {v:0.##}，钱包 {pw.Address}，内幕 {insider}"); Session.Save(); }
                    Open();
                },
            });
        }

        private static void PredictSell(PredictMarket m)
        {
            var d = Session.Data;
            var w = d.Hot;
            if (d.Predict.PosOf(m.Id, w.Address) == null) { _message = L.T("predict.err.NoPosition"); Open(); return; }
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRC, Amount = 0, Spend = 0, FeeAsset = BestFeeAsset(w),
                Summary = L.T("predict.sum.sell", PredictGame.Question(m)),
                Execute = pw =>
                {
                    var res = d.Predict.SellAll(pw, m, StoreStation.GetDayCounter(), d.Rng, out double got, out double fraud);
                    _message = res == PredictResult.Ok ? L.T("predict.sold", Fmt.Num(got)) : L.T("predict.err." + res);
                    if (fraud > 0)
                    {
                        PlayerStore.Instance.secData.CommitCrime("FRAUD", (int)Math.Round(fraud));
                        _message = L.T("predict.sold.caught", Fmt.Num(got));
                        Log.Info($"内幕卖出被查：只退本金 {got:0}，罪证 {fraud:0}");
                    }
                    if (res == PredictResult.Ok) Session.Save();
                    Open();
                },
            });
        }

        private static string PerpErr(PerpResult res) => L.T("perp.err." + res);

        private static void PerpOpen()
        {
            if (!ReadAmount(out double v)) return;
            var d = Session.Data;
            var res = d.Perps.Open(d.Poinbase, _perpProduct, _perpLong, v, _perpLev, PerpSpot(_perpProduct), StoreStation.GetDayCounter(), Session.Price);
            if (res == PerpResult.Ok) CandleChart.Trade(_perpProduct, v * _perpLev);
            _message = res == PerpResult.Ok ? L.T("perp.opened", _perpProduct, L.T(_perpLong ? "perp.long" : "perp.short"), Fmt.Num(v), _perpLev) : PerpErr(res);
            if (res == PerpResult.Ok) Session.Save();
            Open();
        }

        private static void PerpAdd()
        {
            if (!ReadAmount(out double v)) return;
            var d = Session.Data;
            var res = d.Perps.AddMargin(d.Poinbase, _perpProduct, v, Session.Price);
            _message = res == PerpResult.Ok ? L.T("perp.added", Fmt.Num(v)) : PerpErr(res);
            if (res == PerpResult.Ok) Session.Save();
            Open();
        }

        private static void PerpClose()
        {
            var d = Session.Data;
            var pos = d.Perps.Of(_perpProduct);
            if (pos == null) { _message = PerpErr(PerpResult.NoPosition); Open(); return; }
            double margin = pos.Margin;
            CandleChart.Trade(_perpProduct, pos.Notional(PerpSpot(_perpProduct)));
            double paid = d.Perps.Close(d.Poinbase, _perpProduct, PerpSpot(_perpProduct), StoreStation.GetDayCounter(), out double deficit);
            // 操纵：平仓盈利，而且盈利方向和玩家自己推价的方向一致，按推价幅度被查：盈利没收，记诈骗罪证，永续账户冻结几天
            double push = d.Market.PlayerPush, profit = paid - margin;
            bool aligned = _perpProduct == "PSC" && profit > 0 && (pos.Long ? push > 0 : push < 0);
            if (aligned && d.Rng.Chance(Math.Min(1, Market.ManipChance(push) * StoryMods.Current.Enforce(StoreStation.GetDayCounter()))))
            {
                int day = StoreStation.GetDayCounter();
                d.Poinbase.Add(Assets.CRC, -Math.Min(profit, d.Poinbase.Avail(Assets.CRC)));
                d.Perps.BannedUntil = day + Tuning.ManipFreezeDays;
                PlayerStore.Instance.secData.CommitCrime("FRAUD", (int)Math.Round(Math.Min(Tuning.PredictFraudCap, profit * Tuning.PredictFraudShare)));
                News.Show("pd_news_manip_" + day, L.T("news.manip.title"), L.T("news.manip.desc"), 3);
                _message = L.T("perp.manip", Fmt.Credits(profit), Tuning.ManipFreezeDays);
                Log.Info($"永续操纵被查：盈利 {profit:0} 没收，推价 {push:0.000}");
                Session.Save();
                Open();
                return;
            }
            _message = L.T("perp.closed", Fmt.Num(paid), (paid - margin >= 0 ? "+" : "") + Fmt.Num(paid - margin)) + (deficit > 0 ? "\n" + L.T("perp.deficit", Fmt.Credits(deficit)) : "");
            Session.Save();
            Open();
        }

        /// <summary>Poinbase 提到当前钱包：托管账户直接转，不用签名。污点按比例随币走。</summary>
        private static void PoinbaseOut()
        {
            if (!ReadAmount(out double v)) return;
            var d = Session.Data;
            if (d.Poinbase.Avail(_poinAsset) + 1e-9 < v) { _message = L.T("msg.balance"); Open(); return; }
            Wallet.Transfer(d.Poinbase, d.Hot, _poinAsset, v, Session.Price);
            _message = L.T("poin.out.done", Fmt.Num(v), _poinAsset, WalletWindow.NameOf(d.Hot));
            Session.Save();
            WalletWindow.RefreshDevice(d.Hot);
            Open();
        }

        /// <summary>钱包页：全部硬件钱包，连接（设为当前）、打开实体钱包。</summary>
        private static void WalletsPage(CustomUIBuilder b)
        {
            var d = Session.Data;
            b.AddLabel(L.T("wallets.count", d.Wallets.Count, Tuning.WalletMax), "wallets_count_dim");
            var cols = new[] { 100f, 110f, 85f, 70f, 375f };
            var aligns = new[] { TextAnchor.MiddleLeft, TextAnchor.MiddleLeft, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleLeft };
            TableHeader(b, 740f, cols, aligns, L.T("wallets.col.name"), L.T("wallets.col.addr"), L.T("col.value"), L.T("wallets.col.taint"), "");
            for (int i = 0; i < d.Wallets.Count; i++)
            {
                var w = d.Wallets[i];
                int idx = i;
                bool isCurrent = idx == d.Current;
                b.BeginPanel(740f, 32f, TextAnchor.MiddleLeft, 4f, 0f);
                _rows.Add(new PledgerSkin.RowDef
                {
                    Root = b.Last.root,
                    Image = b.Last.image,
                    Selected = isCurrent,
                    OnClick = () => { d.Current = idx; Session.Save(); Open(); }
                });
                b.BeginRow(0f, TextAnchor.MiddleLeft);
                Cell(b, cols[0], (isCurrent ? "● " : "") + WalletWindow.NameOf(w), false, TextAnchor.MiddleLeft);
                Cell(b, cols[1], w.Address, false, TextAnchor.MiddleLeft);
                Cell(b, cols[2], Fmt.Credits(w.Value(Session.Price)), false, TextAnchor.MiddleRight);
                Cell(b, cols[3], Fmt.Credits(w.Taint), false, TextAnchor.MiddleRight);
                // 操作键一组（垂直居中、固定高度），连接状态单独靠右
                b.BeginPanel(cols[4] - 140f, 32f, TextAnchor.MiddleLeft, 0f, 0f);
                _clear.Add(b.Last.image);
                b.BeginRow(4f, TextAnchor.MiddleLeft);
                RowKey(b, L.T("wallets.open"), () => WalletWindow.Open(w));
                RowKey(b, L.T("hw.copy"), () => { Clipboard.Copy(w.Address); _message = L.T("hw.copied.addr", w.Address); Open(); });
                RowKey(b, L.T("wallets.rename"), () => { _renamePick = w.Address; _renameText = w.Label ?? ""; _message = null; Open(); });
                if (idx > 0) RowKey(b, _destroyPick == w.Address ? L.T("wallets.destroy.sure") : L.T("wallets.destroy"), () => DestroyWallet(w));
                b.End();
                b.End();
                b.BeginPanel(100f, 32f, TextAnchor.MiddleRight, 0f, 0f);
                _clear.Add(b.Last.image);
                b.BeginRow(0f, TextAnchor.MiddleRight);
                if (idx != d.Current) RowKey(b, L.T("wallets.use"), () => { d.Current = idx; Session.Save(); Open(); });
                else b.AddLabel(L.T("wallets.current"), "wallets_cur_dim");
                b.End();
                b.End();
                b.End();
                b.End();
            }
            if (_renamePick != null) RenameRow(b);
        }

        /// <summary>表格行里的操作键：固定 24 高，垂直居中（行高 32）。</summary>
        private static void RowKey(CustomUIBuilder b, string text, Action onClick)
        {
            b.AddButton(text, onClick);
            var go = b.Last.root;
            if (go == null) return;
            var le = go.GetComponent<LayoutElement>() ?? go.AddComponent<LayoutElement>();
            le.minHeight = 24f; le.preferredHeight = 24f; le.flexibleHeight = 0f;
        }

        private static string _destroyPick, _renamePick, _renameText = "";

        /// <summary>改名：表格下方一行输入框；留空恢复默认名。</summary>
        private static void RenameRow(CustomUIBuilder b)
        {
            var w = Session.Data.Own(_renamePick);
            if (w == null) { _renamePick = null; return; }
            b.AddSeparator();
            b.BeginRow(8f, TextAnchor.MiddleLeft);
            b.AddLabel(L.T("wallets.rename.h", w.Address));
            b.BeginPanel(220f, -1f, TextAnchor.MiddleLeft, 0f, 0f);
            _clear.Add(b.Last.image);
            b.AddInput(WalletWindow.NameOf(w), _renameText, s => _renameText = s, "rename", s => _renameText = s);
            b.End();
            b.AddButton(L.T("wallets.rename.ok"), () =>
            {
                string name = (_renameText ?? "").Trim();
                w.Label = name.Length == 0 ? null : name.Length > 16 ? name.Substring(0, 16) : name;
                _renamePick = null;
                Session.Save();
                WalletWindow.RefreshDevice(w, true);
                Open();
            });
            b.AddButton(L.T("black.edit.cancel"), () => { _renamePick = null; Open(); });
            b.End();
        }

        /// <summary>销毁钱包（主钱包不能销毁）：要先把币转走；点两次确认。之后回到这个地址的退款、回款、混币提回改进当前钱包。</summary>
        private static void DestroyWallet(Wallet w)
        {
            var d = Session.Data;
            int idx = d.Wallets.IndexOf(w);
            if (idx <= 0) return;
            if (w.Balances.Values.Any(v => v > 1e-9) || w.Frozen.Values.Any(v => v > 1e-9)) { _destroyPick = null; _message = L.T("wallets.destroy.notempty", WalletWindow.NameOf(w)); Open(); return; }
            if (_destroyPick != w.Address) { _destroyPick = w.Address; _message = null; Open(); return; }
            _destroyPick = null;
            string name = WalletWindow.NameOf(w);
            WalletWindow.Close(w);
            var current = d.Hot;
            d.Wallets.RemoveAt(idx);
            d.Current = Math.Max(0, d.Wallets.IndexOf(current));
            Log.Info($"销毁硬件钱包 {w.Address}{(w.Poisoned ? "（被投毒）" : "")}");
            Session.Save();
            _message = L.T("wallets.destroyed", name, w.Address);
            Open();
        }

        /// <summary>硬件钱包拖到终端上：添加一个钱包（被投毒的钱包看起来一样）。</summary>
        public static bool CanAddWallet() => Session.Data != null && Session.Data.Wallets.Count < Tuning.WalletMax;

        public static void AddWallet(bool poisoned)
        {
            var w = Session.Data.AddWallet(poisoned);
            Log.Info($"添加硬件钱包 {w.Address}{(poisoned ? "（被投毒）" : "")}");
            Session.Save();
            _page = Page.Wallets;
            _message = L.T("wallets.added", WalletWindow.NameOf(w), w.Address);
            Open();
        }

        /// <summary>Web3：链上钱包与去中心化交易。</summary>
        private static void Web3Page(CustomUIBuilder b)
        {
            var w = Session.Data.Hot;
            if (WalletWindow.Pending != null && !WalletWindow.Pending.Contract) { PayPage(b); return; }
            {
                if (_web3Tab == Web3Tab.Mixer && !Unlock.MixerUnlocked) _web3Tab = Web3Tab.Trade;
                if (_web3Tab == Web3Tab.Black && !Unlock.BlackUnlocked) _web3Tab = Web3Tab.Trade;
                if (_web3Tab == Web3Tab.Predict && !PredictGame.Available(StoreStation.GetDayCounter())) _web3Tab = Web3Tab.Trade;
                b.BeginRow(4f);
                foreach (Web3Tab t in Enum.GetValues(typeof(Web3Tab)))
                {
                    if ((t == Web3Tab.Mixer && !Unlock.MixerUnlocked) || (t == Web3Tab.Black && !Unlock.BlackUnlocked) || (t == Web3Tab.Predict && !PredictGame.Available(StoreStation.GetDayCounter()))) continue;
                    var tab = t;
                    string name = L.T("web3.sub." + t.ToString().ToLowerInvariant());
                    PledgerSkin.Pick(b, name, tab == _web3Tab, () => { _web3Tab = tab; _message = null; _edit = null; Open(); }, _picked);
                }
                b.End();
                if (_web3Tab == Web3Tab.Stake) { StakePage(b); return; }
                if (_web3Tab == Web3Tab.Predict) { PredictPage(b); return; }
                if (_web3Tab == Web3Tab.Ponzi) { YieldPage(b); return; }
                if (_web3Tab == Web3Tab.Airdrop) { AirdropPage(b); return; }
                if (_web3Tab == Web3Tab.Mining) { ReportPage(b); return; }
                if (_web3Tab == Web3Tab.Mixer) { MixerPage(b); return; }
                if (_web3Tab == Web3Tab.Black) { BlackPage(b); return; }
            }
            Columns(b, l =>
            {
                l.AddHeader(L.T("web3.wallet.h") + "　" + WalletWindow.NameOf(w));
                Holdings(l, w, a => true);
                l.AddSeparator();
                l.AddLabel(L.T("wallet.total", Fmt.Credits(w.Value(Session.Price))));
                if (w.Taint > 0.5) l.AddLabel(L.T("wallet.taint", Fmt.Credits(w.Taint)), "taint_note");
                StableTable(l);
                l.AddSeparator();
                CandleChart.AddPicker(l, "web3", Assets.PSC, Open, _picked);
            }, r =>
            {
                r.AddHeader(L.T("trade.h"));
                AmountRow(r);
                TradeRows(r, Venue.Dex);
                if (Unlock.BlackUnlocked && BlackMarket.DeskOpen(StoreReputation.GetBMReputation())) PoneroBlock(r);
            });
        }

        private enum BlackTab { Buy, Sell, Orders }
        private static BlackTab _blackTab = BlackTab.Buy;
        private static PayMode _mode = PayMode.Escrow;
        private static string _deskAsset = Assets.PSC;
        private static bool _deskIn = true;
        private static string _payAsset = Assets.CRT;
        private static readonly System.Collections.Generic.Dictionary<string, Sprite> IconCache = new System.Collections.Generic.Dictionary<string, Sprite>();

        /// <summary>货架上的商品图：游戏物品自己的贴图（本 mod 的显卡用本 mod 的贴图）。</summary>
        private static Sprite Icon(string id)
        {
            if (IconCache.TryGetValue(id, out var cached)) return cached;
            Sprite sprite = null;
            var it = ModHelper.SpawnItem(BlackDelivery.GameId(id));
            if (it != null)
            {
                try { sprite = it.useSpriteFromMod ? Items.ModSprite(it.spritePath) : RenderHandler.LoadFromAtlas(it.spriteAtlasPath, it.spritePath); }
                catch (Exception ex) { Log.Info($"商品图读取失败 {id}：{ex.Message}"); }
                it.Destroy();
            }
            IconCache[id] = sprite;
            return sprite;
        }

        /// <summary>Web3 页里的黑市：黑市派系的链上实体。货架式商城（现货、订单）、我的订单与情报、Ponero 兑换处。</summary>
        private static void BlackPage(CustomUIBuilder b)
        {
            int rep = StoreReputation.GetBMReputation();
            int day = StoreStation.GetDayCounter();
            var d = Session.Data;
            if (Night.ActiveEvents().Contains(MarketEvent.Crackdown)) { b.AddLabel(L.T("black.offline"), "black_offline_note"); return; }
            if (!BlackMarket.Open(rep)) { b.AddLabel(L.T("black.closed", Tuning.BmOpenRep, rep), "black_closed_note"); return; }
            b.BeginRow(4f);
            foreach (BlackTab t in Enum.GetValues(typeof(BlackTab)))
            {
                var tab = t;
                string name = L.T("black.sub." + t.ToString().ToLowerInvariant());
                PledgerSkin.Pick(b, name, tab == _blackTab, () => { _blackTab = tab; _message = null; _edit = null; Open(); }, _picked);
            }
            b.End();
            if (d.Black.Closed(day)) { b.AddLabel(L.T("black.rugged", d.Black.ClosedUntil - day + 1), "black_rugged_note"); return; }
            if (_edit != null) { EditPage(b); return; }
            if (_blackTab == BlackTab.Orders) { OrdersPage(b, day); return; }
            if (_blackTab == BlackTab.Sell) { SellPage(b, day); return; }
            BuyPage(b, d, rep);
        }

        /// <summary>买货：选一家卖家（第一个是平台现货，立即到货但贵，其余是商家，便宜但要等），选件数，下单。论坛情报在最下面。</summary>
        private static void BuyPage(CustomUIBuilder b, SaveData d, int rep)
        {
            var w = d.Hot;
            var sellers = d.Black.Sellers;
            if (_merchant >= sellers.Count) _merchant = -1;
            bool platform = _merchant < 0;
            b.AddLabel(L.T("black.rep", rep, BlackMarket.MaxLevel(rep)) + "　" + L.T("mixer.balance", _payAsset, Fmt.Num(w.Avail(_payAsset))) + (w.Taint > 0.5 ? "　" + L.T("wallet.taint", Fmt.Credits(w.Taint)) : ""));
            b.BeginRow(4f);
            foreach (var a in new[] { Assets.PSC, Assets.CRT, Assets.CRA, Assets.Ponero })
            {
                var asset = a;
                PledgerSkin.Pick(b, asset, asset == _payAsset, () => { _payAsset = asset; Open(); }, _picked);
            }
            if (!platform)
                foreach (PayMode m in Enum.GetValues(typeof(PayMode)))
                {
                    var mode = m;
                    string n = L.T("black.mode." + m);
                    PledgerSkin.Pick(b, n, mode == _mode, () => { _mode = mode; Open(); }, _picked);
                }
            b.End();
            b.BeginRow(4f);
            foreach (var m in Qtys)
            {
                int q = m;
                PledgerSkin.Pick(b, "×" + q, q == _qty, () => { _qty = q; Open(); }, _picked);
            }
            b.End();
            var all = new System.Collections.Generic.List<System.Collections.Generic.KeyValuePair<int, string>> { new System.Collections.Generic.KeyValuePair<int, string>(-1, L.T("merchant.Platform") + " " + d.Address("platform")) };
            for (int k = 0; k < sellers.Count; k++) all.Add(new System.Collections.Generic.KeyValuePair<int, string>(k, MerchantLabel(sellers[k])));
            for (int i = 0; i < all.Count; i += 3)
            {
                b.BeginRow(4f);
                for (int k = i; k < Math.Min(all.Count, i + 3); k++)
                {
                    int idx = all[k].Key; string n = all[k].Value;
                    PledgerSkin.Pick(b, n, idx == _merchant, () => { _merchant = idx; Open(); }, _picked);
                }
                b.End();
            }
            b.AddSeparator();
            if (platform) PlatformShelf(b, d);
            else MerchantShelf(b, d);
            b.AddSeparator();
            b.AddHeader(L.T("black.forum.h"));
            if (d.Black.Forum.Count == 0) b.AddLabel(L.T("black.forum.quiet"), "forum_quiet_dim");
            foreach (var f in d.Black.Forum)
                b.AddLabel(f.StartsWith("phish:") ? L.T("black.forum.phish", f.Substring(6)) : f.StartsWith("scam:") ? L.T("black.forum.scam", BlackDelivery.DisplayName(f.Substring(5))) : f.StartsWith("busted:") ? L.T("black.forum.busted", f.Substring(7)) : L.T("black.forum." + f), "forum_dim");
        }

        private static void PlatformShelf(CustomUIBuilder b, SaveData d)
        {
            b.AddLabel(L.T("black.platform.line", d.Address("platform")), "platform_line_dim");
            if (d.Black.Offers.Count == 0) { b.AddLabel(L.T("black.empty"), "platform_empty_dim"); return; }
            Shelf(b, d.Black.Offers.Cast<BmGood>().ToList(), (c, g) =>
            {
                var offer = (BmOffer)g;
                int count = Math.Min(_qty, offer.Qty);
                GoodHead(c, g, L.T("black.stock", offer.Qty));
                c.AddLabel(L.T("black.price", offer.Price * count) + (count > 1 ? " ×" + count : ""));
                c.AddFlexibleSpace();
                c.AddButton(L.T("black.buy"), () => { string asset = _payAsset; BeginPay(d.Address("platform"), ItemName(offer.Item) + (count > 1 ? " ×" + count : ""), asset, offer.Price * count, pw => BuyOffer(offer, count, asset, pw)); });
            });
        }

        private static double _sellMult = 1.0;
        private static readonly double[] SellMults = { 0.6, 0.8, 0.9, 1.0, 1.2, 1.5, 1.8 };

        /// <summary>出售：储藏区里能上架的货做成货架，选标价倍率后上架。</summary>
        private static void SellPage(CustomUIBuilder b, int day)
        {
            var d = Session.Data;
            b.BeginRow(4f);
            foreach (var m in SellMults)
            {
                double mult = m;
                string n = m.ToString("0.0", CultureInfo.InvariantCulture);
                PledgerSkin.Pick(b, "×" + n, Math.Abs(mult - _sellMult) < 1e-9, () => { _sellMult = mult; Open(); }, _picked);
            }
            b.End();
            b.AddLabel(L.T("mixer.balance", _payAsset, Fmt.Num(d.Hot.Avail(_payAsset))) + "　" + L.T("black.sell.rating", d.Black.Rating) + "　" + L.T("black.sell.slots", d.Black.ActiveListings, Tuning.BmMaxListings));
            b.AddButton(L.T("black.sell.all"), () =>
            {
                string asset = _payAsset; double mult = _sellMult;
                BeginPay(d.Address("platform"), L.T("black.sell.all") + L.T("pay.listfee", mult.ToString("0.0", CultureInfo.InvariantCulture)), asset, BlackDelivery.Sellable().Sum(it => BlackMarket.ListFee(BlackMarket.ListPriceOf(BlackDelivery.RefValue(it), mult))), pw => ListAll(asset, mult, pw));
            });
            b.AddSeparator();
            var items = BlackDelivery.Sellable();
            if (items.Count == 0) { b.AddLabel(L.T("black.sell.none"), "sell_none_dim"); return; }
            Shelf(b, items.Select(it =>
            {
                string id = BlackDelivery.SellId(it);
                var kind = BlackDelivery.KindOf(id);
                var g = new BmGood { Item = id, Kind = kind, Level = kind == GoodKind.Gpu ? 2 : Merchants.Info(id).Level };
                if (kind == GoodKind.Gpu) { var uu = Items.ToUnit(it); g.Health = uu.Health; g.Model = uu.Model; }
                g.Price = BlackMarket.ListPriceOf(BlackDelivery.RefValue(it), _sellMult);
                return new { g, it };
            }).Select(x => { SellCards[x.g] = x.it; return x.g; }).ToList(), (c, g) =>
            {
                var it = SellCards[g];
                GoodHead(c, g, "");
                c.AddLabel(L.T("black.price", g.Price));
                c.AddFlexibleSpace();
                c.AddButton(L.T("black.sell.list"), () => BeginEdit(new EditPrice { Item = it, Id = g.Item, Ref = BlackDelivery.RefValue(it) }, g.Price));
            });
        }

        private static readonly System.Collections.Generic.Dictionary<BmGood, GameItem> SellCards = new System.Collections.Generic.Dictionary<BmGood, GameItem>();

        private static void ListAll(string asset, double mult, Wallet pw)
        {
            var d = Session.Data;
            int n = 0;
            foreach (var it in BlackDelivery.Sellable())
            {
                string id = BlackDelivery.SellId(it);
                if (id == null) continue;
                var u = Items.IsGpu(it) ? Items.ToUnit(it) : null;
                var s = d.Black.List(id, u?.Model, u?.FakeOf, u?.Health ?? 0, BlackDelivery.RefValue(it), mult, pw, asset, StoreStation.GetDayCounter(), Session.Price);
                if (s == null) break;
                it.Destroy();
                n++;
            }
            _message = L.T("black.sell.listedall", n);
            Session.Save();
            Open();
        }

        private static void ListItem(GameItem it, double mult, string asset, Wallet pw)
        {
            var d = Session.Data;
            string id = BlackDelivery.SellId(it);
            if (id == null) { Open(); return; }
            var u = Items.IsGpu(it) ? Items.ToUnit(it) : null;
            var s = d.Black.List(id, u?.Model, u?.FakeOf, u?.Health ?? 0, BlackDelivery.RefValue(it), mult, pw, asset, StoreStation.GetDayCounter(), Session.Price);
            if (s == null) { _message = d.Black.ActiveListings >= Tuning.BmMaxListings ? L.T("black.sell.full", Tuning.BmMaxListings) : L.T("msg.balance"); Open(); return; }
            it.Destroy();
            _message = L.T("black.sell.listed", ItemName(id), s.ListPrice);
            Session.Save();
            Open();
        }

        private static string MerchantLabel(BmSeller s) => L.T("merchant." + s.Type) + " " + s.Name;

        private static int _merchant = -1;
        private static int _qty = 1;
        private static readonly int[] Qtys = { 1, 5, 10 };

        /// <summary>商家货架：选一家商家，看它这周的货，选件数下单。</summary>
        private static void MerchantShelf(CustomUIBuilder b, SaveData d)
        {
            var sellers = d.Black.Sellers;
            var seller = sellers[_merchant];
            b.AddLabel(L.T("black.seller", MerchantLabel(seller), seller.Trades, seller.Rating) + "　" + L.T("black.days", seller.Days));
            var goods = d.Black.Catalog.Where(l => l.Seller == _merchant).Cast<BmGood>().ToList();
            if (goods.Count == 0) { b.AddLabel(L.T("black.empty"), "shelf_empty_dim"); return; }
            Shelf(b, goods, (c, g) =>
            {
                var listing = (BmListing)g;
                int count = Math.Min(_qty, listing.Qty);
                GoodHead(c, g, L.T("black.stock", listing.Qty));
                c.AddLabel(L.T("black.price", BlackMarket.Pay(BlackMarket.OrderTotal(listing.Price, count), _mode)) + (count > 1 ? " ×" + count : ""));
                c.AddFlexibleSpace();
                bool ok = _mode == PayMode.Escrow || seller.Advance;
                c.AddButton(ok ? L.T("black.order") : L.T("black.noadvance"), () =>
                {
                    if (!ok) return;
                    string asset = _payAsset; var mode = _mode;
                    BeginPay(seller.Name, ItemName(listing.Item) + (count > 1 ? " ×" + count : ""), asset, BlackMarket.Pay(BlackMarket.OrderTotal(listing.Price, count), mode), pw => PlaceOrder(listing, count, asset, mode, pw));
                });
            });
        }

        private const int ShelfCols = 4;
        private const float CardW = 172f, CardH = 268f;

        /// <summary>货架：一行 4 张商品卡。</summary>
        private static void Shelf(CustomUIBuilder b, System.Collections.Generic.List<BmGood> goods, Action<CustomUIBuilder, BmGood> card)
        {
            for (int i = 0; i < goods.Count; i += ShelfCols)
            {
                b.BeginRow(6f);
                for (int k = i; k < Math.Min(goods.Count, i + ShelfCols); k++)
                {
                    var g = goods[k];
                    b.BeginPanel(CardW, CardH, TextAnchor.UpperCenter, 6f, 3f);
                    if (b.Last != null && b.Last.image != null)
                    {
                        b.Last.image.sprite = MachineryStyle.White;
                        b.Last.image.color = PledgerSkin.RowNormal;
                    }
                    card(b, g);
                    b.End();
                }
                b.End();
            }
        }

        private static void GoodHead(CustomUIBuilder c, BmGood g, string line2)
        {
            var sprite = Icon(g.Item);
            if (sprite != null) c.AddImage(sprite, 64f, 64f); else c.AddSpace(64f);
            c.AddLabel("<b>" + ItemName(g.Item) + "</b>");
            bool asic = g.Kind == GoodKind.Gpu && g.Model != null && Hardware.Specs.TryGetValue(g.Model, out var gs) && gs.Asic;
            c.AddLabel(asic ? (g.Health >= 100 ? L.T("black.kind.asicnew") : L.T("black.kind.asic", (int)Math.Round(g.Health))) : g.Kind == GoodKind.Gpu ? (g.Health >= 100 ? L.T("black.kind.gpunew") : L.T("black.kind.gpu", (int)Math.Round(g.Health))) : L.T("black.kind." + g.Kind + (g.Kind == GoodKind.Contraband ? "." + g.Level : "")), "good_kind_dim");
            if (!string.IsNullOrEmpty(line2)) c.AddLabel(line2, "good_line2_dim");
        }

        private static string ItemName(string id) => BlackDelivery.ItemName(id);

        /// <summary>开账单：收款地址、币种、金额（按信用点等值折成币），付款在硬件钱包里做。</summary>
        private static void BeginPay(string address, string summary, string asset, double credits, Action<Wallet> execute) =>
            BillFor(address, summary, asset, credits / Session.Price(asset), execute);

        private static void BillFor(string address, string summary, string asset, double amount, Action<Wallet> execute)
        {
            WalletWindow.Pending = new WalletWindow.Bill { Address = address, Summary = summary, Asset = asset, Amount = WalletWindow.RoundUp(amount), Execute = execute };
            _message = null;
            Open();
        }

        /// <summary>待付账单：收款地址和金额，去钱包里转账；也可以作废。</summary>
        private static void PayPage(CustomUIBuilder b)
        {
            var p = WalletWindow.Pending;
            b.AddHeader(L.T("black.pay.confirm"));
            b.AddLabel(p.Summary);
            b.BeginRow(8f, TextAnchor.MiddleLeft);
            b.AddLabel(L.T("black.pay.to", p.Address), "pay_to_dim");
            b.AddButton(L.T("hw.copy"), () => { Clipboard.Copy(p.Address); _message = L.T("hw.copied.addr", p.Address); Open(); });
            b.End();
            b.AddLabel(L.T("black.pay.amount", WalletWindow.Amt(p.Amount), p.Asset, Fmt.Credits(p.Amount * Session.Price(p.Asset))));
            b.BeginRow(6f);
            b.AddButton(L.T("black.pay.wallet"), () => WalletWindow.OpenForBill(p));
            b.AddButton(L.T("black.pay.cancel"), () => { WalletWindow.Pending = null; _message = null; Open(); });
            b.End();
        }

        private static void BuyOffer(BmOffer o, int count, string asset, Wallet pw)
        {
            var d = Session.Data;
            string item = o.Item, model = o.Model, fake = o.FakeOf;
            double health = o.Health;
            int bought = 0;
            for (int i = 0; i < count; i++)
            {
                if (!d.Black.Buy(o, pw, asset, Session.Price)) break;
                Items.Give(BlackDelivery.Make(item, model, fake, health));
                bought++;
            }
            if (bought == 0) { _message = L.T("msg.balance"); Open(); return; }
            _message = L.T("black.bought", ItemName(item) + (bought > 1 ? " ×" + bought : ""));
            Session.Save();
            Open();
        }

        private static void PlaceOrder(BmListing l, int count, string asset, PayMode mode, Wallet pw)
        {
            var d = Session.Data;
            var o = d.Black.Place(l, count, mode, pw, asset, StoreStation.GetDayCounter(), Session.Price);
            if (o == null) { _message = L.T("msg.balance"); Open(); return; }
            _message = L.T("black.ordered", ItemName(o.Item) + (o.Count > 1 ? " ×" + o.Count : ""), o.DueDay);
            Session.Save();
            Open();
        }

        private static void BeginEdit(EditPrice e, int initial)
        {
            _edit = e;
            _editPrice = initial.ToString(CultureInfo.InvariantCulture);
            _message = null;
            Open();
        }

        private static int MinPrice(long refValue) => (int)Math.Ceiling(Tuning.BmSellMin * refValue - 1e-9);
        private static int MaxPrice(long refValue) => (int)Math.Floor(Tuning.BmSellMax * refValue + 1e-9);

        /// <summary>设定标价：显示参考价，档位按钮只是帮忙填价格，价格也可以手输；按 标价 / 参考价 的比例算成交和污点。</summary>
        private static void EditPage(CustomUIBuilder b)
        {
            var e = _edit;
            b.AddHeader(ItemName(e.Id));
            b.AddLabel(L.T("black.edit.ref", e.Ref), "edit_ref_dim");
            b.BeginPanel(RightW, -1f, TextAnchor.MiddleCenter, 0f, 0f);
            if (b.Last != null && b.Last.image != null) _clear.Add(b.Last.image);
            b.AddInput(L.T("black.edit.input"), _editPrice, s => _editPrice = s, "price", s => _editPrice = s);
            b.End();
            b.BeginRow(4f);
            foreach (var m in SellMults)
            {
                double mult = m;
                string label = "×" + m.ToString("0.0", CultureInfo.InvariantCulture);
                int targetPrice = BlackMarket.ListPriceOf(e.Ref, mult);
                bool sel = int.TryParse((_editPrice ?? "").Trim(), NumberStyles.Integer, CultureInfo.InvariantCulture, out int curP) && curP == targetPrice;
                PledgerSkin.Pick(b, label, sel, () => { _editPrice = targetPrice.ToString(CultureInfo.InvariantCulture); Open(); }, _picked);
            }
            b.End();
            if (int.TryParse((_editPrice ?? "").Trim(), NumberStyles.Integer, CultureInfo.InvariantCulture, out int p) && p > 0)
                b.AddLabel(L.T("black.edit.price", p, (p / (double)e.Ref).ToString("0.00", CultureInfo.InvariantCulture)));
            b.BeginRow(6f);
            b.AddButton(L.T("black.edit.ok"), () =>
            {
                if (!int.TryParse((_editPrice ?? "").Trim(), NumberStyles.Integer, CultureInfo.InvariantCulture, out int price) || price < MinPrice(e.Ref) || price > MaxPrice(e.Ref))
                { _message = L.T("black.edit.range", MinPrice(e.Ref), MaxPrice(e.Ref)); Open(); return; }
                double mult = price / (double)e.Ref;
                var d = Session.Data;
                int fee = e.Sale != null ? BlackMarket.RepriceFee(price) : BlackMarket.ListFee(price);
                _edit = null;
                string asset = _payAsset;
                BeginPay(d.Address("platform"), ItemName(e.Id) + L.T(e.Sale != null ? "pay.repricefee" : "pay.listfee", mult.ToString("0.00", CultureInfo.InvariantCulture)), asset, fee,
                    pw => { if (e.Sale != null) RepriceSale(e.Sale, mult, asset, pw); else ListItem(e.Item, mult, asset, pw); });
            });
            b.AddButton(L.T("black.edit.cancel"), () => { _edit = null; _message = null; Open(); });
            b.End();
        }

        private static void RepriceSale(BmSale s, double mult, string asset, Wallet pw)
        {
            var d = Session.Data;
            if (!d.Black.Reprice(s, mult, pw, asset, StoreStation.GetDayCounter(), Session.Price)) { _message = L.T("msg.balance"); Open(); return; }
            _message = L.T("black.sell.repriced", ItemName(s.Item), s.ListPrice);
            Session.Save();
            Open();
        }

        private static void Delist(BmSale s)
        {
            var d = Session.Data;
            d.Black.Delist(s);
            Items.Give(BlackDelivery.Make(s.Item, s.Model, s.FakeOf, s.Health));
            Session.Save();
            Open();
        }

        /// <summary>我的订单与论坛情报。</summary>
        private static void OrdersPage(CustomUIBuilder b, int day)
        {
            var d = Session.Data;
            b.AddHeader(L.T("black.orders.in"));
            if (d.Black.Orders.Count == 0) b.AddLabel(L.T("black.mine.none"), "orders_in_none_dim");
            foreach (var o in d.Black.Orders.OrderByDescending(x => x.PlacedDay))
                b.AddLabel(L.T("black.mine.line", ItemName(o.Item) + (o.Count > 1 ? " ×" + o.Count : ""), BlackDelivery.DisplayName(o.Seller), L.T("black.mode." + o.Mode), L.T("black.state." + o.State + (o.Why != null && o.State != OrderState.Done ? "." + o.Why : "")), o.DueDay));
            b.AddSeparator();
            b.AddHeader(L.T("black.orders.out"));
            if (d.Black.Sales.Count == 0) b.AddLabel(L.T("black.mine.none"), "orders_out_none_dim");
            foreach (var sl in d.Black.Sales.Where(x => x.State != SaleState.Delisted || x.Why == "fake").OrderByDescending(x => x.ListedDay))
            {
                var sale = sl;
                string st = sale.State == SaleState.Sold ? L.T("black.sale.Sold", sale.PayDay) : L.T("black.sale." + sale.State + (sale.State == SaleState.Delisted && sale.Why != null ? "." + sale.Why : ""));
                b.AddLabel(L.T("black.mine.sale", ItemName(sale.Item), sale.Ref, sale.ListPrice, sale.Mult.ToString("0.00", CultureInfo.InvariantCulture), st));
                if (sale.State == SaleState.Listed)
                {
                    b.BeginRow(6f);
                    b.AddButton(L.T("black.sell.reprice"), () => BeginEdit(new EditPrice { Sale = sale, Id = sale.Item, Ref = sale.Ref }, sale.ListPrice));
                    b.AddButton(L.T("black.sell.delist"), () => Delist(sale));
                    b.End();
                }
            }
        }

        /// <summary>匿名币兑换：Web3 交易页里的一个通用兑换块，带"匿名币"标签。要黑市声望，有每日额度；兑入时这部分价值的污点被清除。</summary>
        private static void PoneroBlock(CustomUIBuilder r)
        {
            var d = Session.Data;
            var w = d.Hot;
            int day = StoreStation.GetDayCounter();
            r.AddSeparator();
            r.AddLabel(L.T("black.desk.pair", Fmt.Num(Session.Price(Assets.Ponero))));
            r.AddLabel(L.T("black.desk.left", Fmt.Credits(d.Black.DeskLeft(day)), Fmt.Credits(Tuning.PoneroDailyCap)), "desk_left_dim");
            r.BeginRow(4f);
            foreach (var a in new[] { Assets.PSC, Assets.CRT, Assets.CRA })
            {
                var asset = a;
                PledgerSkin.Pick(r, asset, asset == _deskAsset, () => { _deskAsset = asset; Open(); }, _picked);
            }
            r.End();
            r.BeginRow(6f);
            r.AddButton(L.T("black.desk.in"), () => { _deskIn = true; Swap(); });
            r.AddButton(L.T("black.desk.out"), () => { _deskIn = false; Swap(); });
            r.End();
            void Swap()
            {
                if (!ReadAmount(out double dv)) return;
                bool into = _deskIn; string other = _deskAsset;
                string asset = into ? other : Assets.Ponero;
                _web3Tab = Web3Tab.Trade;
                BillFor(d.Address("desk"), L.T("pay.swap", Fmt.Num(dv), asset), asset, dv, pw => DeskSwap(dv, into, other, pw));
            }
        }

        private static void DeskSwap(double v, bool into, string other, Wallet pw)
        {
            var d = Session.Data;
            _deskIn = into; _deskAsset = other;
            int day = StoreStation.GetDayCounter();
            double got = _deskIn ? d.Black.ToPonero(pw, _deskAsset, v, day, Session.Price) : d.Black.FromPonero(pw, _deskAsset, v, day, Session.Price);
            if (got < 0) { _message = L.T("black.desk.fail"); Open(); return; }
            { double cr = v * Session.Price(_deskIn ? _deskAsset : Assets.Ponero); CandleChart.Trade(Assets.Ponero, cr); CandleChart.Trade(_deskAsset, cr); }
            // 从 Ponero 出来的币来源不明：出金审查按"来自混币器"加重
            if (!_deskIn) d.Mixer.LastReturnDay = day;
            _message = _deskIn ? L.T("msg.trade", Fmt.Num(v), _deskAsset, Fmt.Num(got), Assets.Ponero) : L.T("msg.trade", Fmt.Num(v), Assets.Ponero, Fmt.Num(got), _deskAsset);
            Session.Save();
            Open();
        }

        private enum Web3Tab { Trade, Stake, Airdrop, Predict, Ponzi, Mining, Mixer, Black }
        private static Web3Tab _web3Tab = Web3Tab.Trade;
        private static string _mixAsset = Assets.PSC;
        private static int _mixRounds = 2;
        private static readonly float[] MixW = { 70f, 100f, 100f, 80f };
        private static readonly TextAnchor[] MixAligns = { TextAnchor.MiddleLeft, TextAnchor.MiddleRight, TextAnchor.MiddleRight, TextAnchor.MiddleRight };

        /// <summary>混币器：把币存进去，几轮之后提回同一个地址，污点降低，每轮扣手续费。</summary>
        private static void MixerPage(CustomUIBuilder b)
        {
            var d = Session.Data;
            var w = d.Hot;
            int day = StoreStation.GetDayCounter();
            Columns(b, l =>
            {
                l.AddHeader(L.T("mixer.h"));
                l.AddLabel(d.Story.MixerClosed ? L.T("mixer.status.closed") : d.Mixer.Sanctioned(day) ? L.T("mixer.sanctioned", d.Mixer.SanctionedUntil - day + 1) : L.T("mixer.ok"), d.Story.MixerClosed || d.Mixer.Sanctioned(day) ? "mixer_status_note" : "mixer_status_dim");
                if (w.Taint > 0.5) l.AddLabel(L.T("wallet.taint", Fmt.Credits(w.Taint)), "taint_note");
                l.AddSeparator();
                l.AddHeader(L.T("mixer.pending"));
                if (d.Mixer.Pending.Count == 0) l.AddLabel(L.T("mixer.none"), "mixer_none_dim");
                else
                {
                    TableHeader(l, MixW.Sum() + 8f, MixW, MixAligns, L.T("col.asset"), L.T("col.amount"), L.T("mixer.col.taint"), L.T("mixer.col.ready"));
                    foreach (var p in d.Mixer.Pending)
                        TableRow(l, MixW.Sum() + 8f, MixW, MixAligns, new[] { p.Asset, Fmt.Num(p.Amount), Fmt.Credits(p.Taint), L.T("mixer.day", p.ReadyDay) });
                }
            }, r =>
            {
                r.AddHeader(L.T("mixer.deposit"));
                if (d.Story.MixerClosed) { r.AddLabel(L.T("mixer.closed"), "mixer_closed_note"); return; }
                r.BeginRow(4f);
                foreach (var a in new[] { Assets.PSC, Assets.CRC, Assets.CRT, Assets.CRA })
                {
                    var asset = a;
                    PledgerSkin.Pick(r, asset, asset == _mixAsset, () => { _mixAsset = asset; Open(); }, _picked);
                }
                r.End();
                r.AddLabel(L.T("mixer.balance", _mixAsset, Fmt.Num(w.Avail(_mixAsset))));
                AmountRow(r);
                r.AddLabel(L.T("mixer.rounds"));
                r.BeginRow(4f);
                for (int n = 1; n <= Tuning.MixerMaxRounds; n++)
                {
                    int rounds = n;
                    PledgerSkin.Pick(r, rounds.ToString(), rounds == _mixRounds, () => { _mixRounds = rounds; Open(); }, _picked);
                }
                r.End();
                if (double.TryParse((_amount ?? "").Trim(), NumberStyles.Float, CultureInfo.InvariantCulture, out double v) && v > 0)
                {
                    double rate = Mixer.RoundRate(v * Session.Price(_mixAsset));
                    r.AddLabel(L.T("mixer.preview", Fmt.Num(v * Math.Pow(1 - Mixer.Fee, _mixRounds)), _mixAsset, (int)Math.Round((1 - Math.Pow(1 - rate, _mixRounds)) * 100), day + _mixRounds), "mixer_preview_dim");
                }
                r.AddButton(L.T("mixer.go"), () =>
                {
                    if (!ReadAmount(out double mv)) return;
                    string asset = _mixAsset; int rounds = _mixRounds;
                    BillFor(d.Address("mixer"), L.T("pay.mix", Fmt.Num(mv), asset), asset, mv, pw => MixDeposit(mv, asset, rounds, pw));
                });
            });
        }

        private static void MixDeposit(double v, string asset, int rounds, Wallet pw)
        {
            var d = Session.Data;
            int day = StoreStation.GetDayCounter();
            if (pw.Avail(asset) + 1e-9 < v) { _message = L.T("msg.balance"); Open(); return; }
            var dep = d.Mixer.Deposit(pw, asset, v, rounds, day, Session.Price);
            _message = dep == null ? L.T("mixer.min", Tuning.MixerMin) : L.T("mixer.done", Fmt.Num(v), asset, dep.ReadyDay);
            Session.Save();
            Open();
        }

        private static readonly float[] StakeW = { 110f, 90f, 200f };
        private static readonly TextAnchor[] StakeAligns = { TextAnchor.MiddleLeft, TextAnchor.MiddleRight, TextAnchor.MiddleRight };

        /// <summary>质押页：革命军 CRA 质押池（日息、解锁排队）和平衡代币 SPARK 的铸销。都是合约调用，要在钱包上签名。</summary>
        private static void StakePage(CustomUIBuilder b)
        {
            var d = Session.Data;
            var st = d.Stable;
            var w = d.Hot;
            int day = StoreStation.GetDayCounter();
            Columns(b, l =>
            {
                l.AddHeader(L.T("stake.h"));
                l.AddLabel(L.T("stake.rate", (st.CraRate * 100).ToString("0.0", CultureInfo.InvariantCulture), Tuning.CraUnlockDays) + (st.CraSubsidyLow ? "　" + L.T("stake.low") : ""), st.CraSubsidyLow ? "stake_low_note" : "stake_rate_dim");
                l.AddLabel(L.T("stake.cra", Fmt.Num(st.Cra), StableStatus(st, Assets.CRA, day)));
                l.AddSeparator();
                if (d.Staking.Lots.Count == 0) l.AddLabel(L.T("stake.none"), "stake_none_dim");
                else
                {
                    TableHeader(l, StakeW.Sum() + 8f, StakeW, StakeAligns, L.T("stake.col.wallet"), L.T("stake.col.amount"), L.T("stake.col.queue"));
                    foreach (var lot in d.Staking.Lots)
                    {
                        var ow = d.Own(lot.Wallet);
                        string queue = lot.Unlocking.Count == 0 ? "—" : string.Join(" ", lot.Unlocking.Select(u => Fmt.Num(u.Value) + L.T("stake.day", u.Key)));
                        TableRow(l, StakeW.Sum() + 8f, StakeW, StakeAligns,
                            new[] { ow != null ? WalletWindow.NameOf(ow) : lot.Wallet, Fmt.Num(lot.Amount), queue });
                    }
                }
                l.AddSeparator();
                l.AddLabel(L.T("spark.price", Fmt.Num(st.Spark)));
            }, r =>
            {
                r.AddHeader(L.T("stake.ops", WalletWindow.NameOf(w)));
                r.AddLabel(L.T("stake.avail", Fmt.Num(w.Avail(Assets.CRA)), Fmt.Num(d.Staking.Of(w.Address)?.Amount ?? 0)), "stake_avail_dim");
                r.AddLabel(L.T("stake.avail2", Fmt.Num(w.Avail(Assets.SPARK))), "stake_avail2_dim");
                AmountRow(r);
                r.AddSpace(4f);
                r.BeginRow(6f);
                r.AddButton(L.T("stake.do"), () => StakeCall(true));
                r.AddButton(L.T("stake.undo"), () => StakeCall(false));
                r.End();
                r.AddSeparator();
                r.AddHeader(L.T("spark.h"));
                r.BeginRow(6f);
                r.AddButton(L.T("spark.mint"), () => SparkCall(true));
                r.AddButton(L.T("spark.burn"), () => SparkCall(false));
                r.End();
            });
        }

        /// <summary>手续费用钱包里价值最高的那种币付。</summary>
        private static string BestFeeAsset(Wallet w) =>
            w.Balances.Where(k => k.Value > 1e-9 && Session.Price(k.Key) > 0).OrderByDescending(k => k.Value * Session.Price(k.Key)).Select(k => k.Key).FirstOrDefault() ?? Assets.PSC;

        private static void StakeCall(bool into)
        {
            if (!ReadAmount(out double v)) return;
            var d = Session.Data;
            var w = d.Hot;
            if (into ? w.Avail(Assets.CRA) + 1e-9 < v : (d.Staking.Of(w.Address)?.Amount ?? 0) + 1e-9 < v) { _message = L.T("msg.balance"); Open(); return; }
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = Assets.CRA, Amount = v, Spend = into ? v : 0, FeeAsset = into ? null : BestFeeAsset(w),
                Summary = L.T(into ? "stake.sum.in" : "stake.sum.out", Fmt.Num(v), Tuning.CraUnlockDays),
                Execute = pw =>
                {
                    int day = StoreStation.GetDayCounter();
                    bool ok = into ? d.Staking.Stake(pw, v, Session.Price) : d.Staking.RequestUnstake(pw.Address, v, day);
                    _message = ok ? L.T(into ? "stake.done.in" : "stake.done.out", Fmt.Num(v), day + Tuning.CraUnlockDays) : L.T("msg.balance");
                    Session.Save();
                    Open();
                },
            });
        }

        private static void SparkCall(bool mint)
        {
            if (!ReadAmount(out double v)) return;
            var d = Session.Data;
            var w = d.Hot;
            string pay = mint ? Assets.CRA : Assets.SPARK, get = mint ? Assets.SPARK : Assets.CRA;
            if (w.Avail(pay) + 1e-9 < v) { _message = L.T("msg.balance"); Open(); return; }
            double quote = mint ? v * d.Stable.Cra / d.Stable.Spark * (1 - Tuning.SparkFee) : v * d.Stable.Spark / d.Stable.Cra * (1 - Tuning.SparkFee);
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill
            {
                Contract = true, Asset = pay, Amount = v, Summary = L.T("hw.swap", Fmt.Num(v), pay, Fmt.Num(quote), get),
                Execute = pw =>
                {
                    double got = mint ? d.Stable.Mint(pw, v) : d.Stable.Burn(pw, v);
                    if (got >= 0) { double cr = v * Session.Price(pay); CandleChart.Trade(Assets.SPARK, cr); CandleChart.Trade(Assets.CRA, cr); }
                    _message = got < 0 ? L.T("msg.balance") : L.T("msg.trade", Fmt.Num(v), pay, Fmt.Num(got), get);
                    Session.Save();
                    Open();
                },
            });
        }

        private static bool frozenPay(Wallet w, string asset) => w.Frozen.ContainsKey(asset);

        private static string AvgText(Wallet w, string asset) => w.AvgBuy(asset) is double a ? Fmt.Num(a) : L.T("avg.none");

        private static void ReportPage(CustomUIBuilder b)
        {
            var r = Session.Data.LastNight;
            if (r == null) { b.AddLabel(L.T("report.none"), "report_none_dim"); return; }
            b.AddHeader(L.T("report.day", r.Day));
            b.AddLabel(L.T("report.rigs", r.PoweredRigs, r.Rigs), "report_dim");
            b.AddLabel(L.T("report.hash", Fmt.Num(r.Hash * 10), Fmt.Num(r.NetworkHash * 10)), "report_dim");
            b.AddLabel(L.T("report.mined", Fmt.Num(r.Mined), Fmt.Credits(r.Mined * r.Price)));
            b.AddLabel(L.T("report.energy", Fmt.Num(r.Kj)), "report_dim");
            b.AddLabel(L.T("report.burnt", r.Burnt.Count), r.Burnt.Count > 0 ? "report_burnt_note" : "report_burnt_dim");
            foreach (var n in r.Burnt) b.AddLabel("  " + n, "report_burnt_note");
            b.AddLabel(L.T("report.price", Fmt.Num(r.Price)), "report_dim");
        }

        private static bool ReadAmount(out double v)
        {
            if (!double.TryParse((_amount ?? "").Trim(), NumberStyles.Float, CultureInfo.InvariantCulture, out v) || v <= 0)
            {
                _message = L.T("msg.amount");
                Open();
                return false;
            }
            return true;
        }

        private static void Deposit()
        {
            if (!ReadAmount(out double v)) return;
            int credits = (int)Math.Floor(v);
            if (credits <= 0 || PlayerStore.Instance.playerCash < credits) { _message = L.T("msg.balance"); Open(); return; }
            ModHelper.AddCredit(-credits, false);
            var w = Session.Data.Poinbase;
            w.Add(Assets.CRC, credits / Session.Data.Stable.Crc);
            w.RecordBuy(Assets.CRC, credits / Session.Data.Stable.Crc, credits);
            w.Basis += credits;
            _message = L.T("msg.deposit", credits);
            Session.Save();
            Open();
        }

        private static void Withdraw()
        {
            if (!ReadAmount(out double v)) return;
            var d = Session.Data;
            if (d.Perps.Debt > 0) { _message = L.T("perp.debt.block"); Open(); return; }
            if (d.Poinbase.Avail(Assets.CRC) + 1e-9 < v) { _message = L.T("msg.balance"); Open(); return; }
            var r = d.Exchange.Cashout(d.Poinbase, v, Session.Price, StoreStation.GetDayCounter(), Session.Rent(), d.Mixer.RecentlyMixed(StoreStation.GetDayCounter()), d.Rng);
            int got = (int)Math.Floor(r.Received - r.Tax);
            ModHelper.AddCredit(got, true);
            _message = L.T("msg.cashout", got, Fmt.Credits(r.Tax));
            if (r.Outcome == AmlOutcome.Light) _message += "\n" + L.T("msg.aml_light", Fmt.Credits(r.Confiscated));
            if (r.Outcome == AmlOutcome.Heavy)
            {
                _message += "\n" + L.T("msg.aml_heavy", Fmt.Credits(r.Confiscated));
                PlayerStore.Instance.secData.CommitCrime("FENCING", (int)Math.Round(r.Crime));
            }
            Session.Save();
            Open();
        }

        /// <summary>交易：Poinbase 是托管账户，直接成交；DEX 是合约调用，要在硬件钱包上签名。</summary>
        private static void Trade(Pool p, bool buy)
        {
            if (!ReadAmount(out double v)) return;
            var w = p.Venue == Venue.Dex ? Session.Data.Hot : Session.Data.Poinbase;
            string pay = buy ? p.Quote : p.Base, get = buy ? p.Base : p.Quote;
            if (w.Avail(pay) + 1e-9 < v) { _message = L.T(frozenPay(w, pay) ? "msg.frozen" : "msg.balance"); Open(); return; }
            if (p.Venue != Venue.Dex) { DoTrade(p, buy, v, w); return; }
            double quote = buy ? v / p.Price : v * p.Price;
            _message = L.T("hw.wait");
            Open();
            WalletWindow.OpenForBill(new WalletWindow.Bill { Contract = true, Asset = pay, Amount = v, Summary = L.T("hw.swap", Fmt.Num(v), pay, Fmt.Num(quote), get), Execute = pw => DoTrade(p, buy, v, pw) });
        }

        private static void DoTrade(Pool p, bool buy, double v, Wallet w)
        {
            string pay = buy ? p.Quote : p.Base, get = buy ? p.Base : p.Quote;
            if (w.Avail(pay) + 1e-9 < v) { _message = L.T(frozenPay(w, pay) ? "msg.frozen" : "msg.balance"); Open(); return; }
            double before = p.Price;
            double got = buy ? p.BuyBase(v) : p.SellBase(v);
            if (p == Session.Data.Market.Main) { Session.Data.Market.PlayerPush += Math.Log(p.Price / before); Log.Info($"现货推价：累计 {Session.Data.Market.PlayerPush:0.000}"); }
            double spent = v * Session.Price(pay);
            CandleChart.Trade(pay, spent); CandleChart.Trade(get, spent);
            w.Add(pay, -v);
            w.Add(get, got);
            w.RecordBuy(get, got, spent);
            _message = L.T("msg.trade", Fmt.Num(v), pay, Fmt.Num(got), get);
            Session.Save();
            Open();
        }
    }
}