import type { FirmPlatform } from './lib/master-protocol';
import type { KeptRulesWindow } from './lib/kept-rules';

/** When one of an account type's old rule sets applies: accounts whose rules
 *  date is inside [openedAt, closedAt) keep those rules (openedAt null = no
 *  lower bound). `id` is the kept set's own, never an account type id. */
export type { KeptRulesWindow };

export interface AccountConfig {
    /** Master's account type id — what a manual assignment pins to. */
    id: string;
    label: string;
    prefix: string;
    profitTarget: number;
    consistency: number;
    minDayPnL: number;
    minTradingDays: number;
    accountSize: number;
    maxLoss: number;          // static max drawdown below the starting size (0 = none); with a hard daily loss, decides last stands
    maxPositionSize: number;  // 0 = no limit; positive = max contracts per trade
    targetSameEquity: boolean;   // if true, reduce profitTarget by priorProfit after withdrawal
    splitEnabled: boolean;    // false = big days trade as one unsplit leg instead of random ≥$500 pieces
    minLegs: number;          // big days (> $1,700) must carve at least this many legs (0 = however the carve falls)
    firstDayStop: boolean;    // first cycle day carries a $1,000 account stop - books red and ends
    minDayStop: boolean;      // min-day trades carry a 2x-target stop; next day after a loss rides stopless
    combineCmeHolidays: boolean;  // true = CME holiday sessions count with the next full trading day (Apex-style)
    withdrawalStages: { profit: number; consistency: number; minTradingDays: number; drain?: boolean; minDayPnL?: number; withdrawalPct?: number; payoutCap?: number }[];  // per-stage fresh profit + consistency (empty = use base values); drain = spam-withdraw stage
    /** Payout model, from the master's payout settings (absent on old masters):
     *  withdraw withdrawalPct of balance (capped at payoutCap) per cycle,
     *  receive profitSplit of the gross; trailingDrawdown feeds the ruin
     *  probabilities. payoutable=false means completing the target just
     *  PASSES the account (an eval) rather than paying out. */
    payoutable?: boolean;
    withdrawalPct?: number;
    payoutCap?: number;
    profitSplit?: number;
    trailingDrawdown?: number;
    /** Hard daily loss limit in dollars (0/absent = none): every leg carries a
     *  stop that keeps the firm's day inside it, less a reserve and fees. */
    dailyLossLimit?: number;
    /** The firm trades every calendar day, weekends and CME holidays included. */
    tradesEveryDay?: boolean;
}

/** An account type as the firm listing (/api/firms) carries it: the current
 *  rules, plus the windows of the old rule sets it keeps, so the dashboard can
 *  preview which rules a rules date lands on. */
export interface FirmAccountType extends AccountConfig {
    /** Sorted by closedAt; empty when every account is on the current rules. */
    kept: KeptRulesWindow[];
}

export interface FirmConfig {
    /** Master's firm id (uuid). */
    id: string;
    firm: string;
    /** Which platform the firm's accounts trade on — decides both which client
     *  drives it and which credential fields the dashboard asks for. */
    platform: FirmPlatform;
    /** Blank when this machine has no credentials for the firm. */
    username: string;
    /** True once the platform's credentials are stored locally — a username +
     *  password (Tradovate, DXTrade) or a TopstepX API key. Firms without them
     *  are shown greyed out with an inline credential form. */
    hasCredentials: boolean;
    /** What the firm trades (lib/instruments.ts): CME roots for futures
     *  firms, its own symbols for DXtrade. */
    instruments: string[];
    /** 'master' = the catalog's list; 'legacy' = a master from before the
     *  lists, read the old way (this machine's enabled set less bans). */
    instrumentsSource: 'master' | 'legacy';
    /** The firm's account types, straight from the catalog. Doubles as the
     *  option list for a manual account-type override. */
    accounts: FirmAccountType[];
    catalogUpdatedAt: string;
}

export interface AccountState {
    id: number;
    name: string;
    active: boolean;
    amount: number;
    realizedPnL: number;
    daysTraded: number;
    positionDirection: 'long' | 'short' | null;
    /** Balance floor from Tradovate's auto-liquidation profile (0 = not set) */
    autoLiqThreshold: number;
    /** Sum of all historical daily P&L entries */
    totalProfit: number;
    /** True when today's realizedPnL has met or exceeded the computed daily target */
    targetHit: boolean;
    /** True when a stop-enabled account booked its day red via its own stop —
     *  the personal DLL. It stands down until the next session's make-back. */
    personalDll: boolean;
    /** True when today's trading finished the current cycle — profit target,
     *  consistency and minimum days all met (cycleCompletion 'today'). Only
     *  the final day; the firm may lock or remove the account afterwards. */
    completed: boolean;
    /** Current stage = 1 + number of withdrawals (negative fund transactions). Stage 1 = fresh account. */
    stage: number;
    /** True when the current stage is a drain stage (spam-withdraw mode). */
    stageDrain: boolean;
    /** Next trading day's target, computed server-side. null when account is dead or config is missing. */
    dailyTarget: { amount: number; path: 'first_day' | 'normal_day' | 'reduced_day' } | null;
    /** Dollars of price movement the next trade may lose before its stop
     *  fires — the tighter of the obfuscation stop and the hard daily-loss
     *  stop, before fees. null = the next trade rides stopless (options off,
     *  big non-first day, or a make-back day after a loss, with no daily
     *  loss limit). */
    nextStop: number | null;
    /** What the firm's day may still lose before a hard daily-loss breach.
     *  null = no daily loss limit (or its day-start balance isn't known yet). */
    dllRoom: number | null;
    /** DXtrade: how the next leg would be sized and how long it is expected to
     *  hold, from today's measured volatility of the last-picked instrument.
     *  null on other platforms, or before the day's first pick. */
    holdEstimate: {
        hours: number;
        symbol: string;
        notional: number;
        /** Notional ÷ account size. */
        multiplier: number;
        volatilityPerDay: number;
        winProbability: number | null;
        /** The same leg with no commission, spread or swap. */
        winProbabilityNoFees: number | null;
        /** Expected swap a winning leg pays, added to its take-profit. */
        swapReserve: number;
        /** The broker's leverage on the symbol (5 = 5:1); null when unstated. */
        leverage: number | null;
        /** Expected spread, commissions and swap for the leg. */
        cost: number;
    } | null;
    /** The next leg rides without a daily-loss stop: a stop-out would leave
     *  the account too close to its max-drawdown floor to trade on. */
    lastStand: boolean;
    /** Actual profit target to hit — max(stage profit target, consistency realTarget = maxDay/consistency). */
    effectiveProfitTarget: number | null;
    /** The current stage's hard daily loss limit (0 = none) and minimum
     *  trading days — a withdrawal stage may set its own. null = unassigned. */
    effectiveDailyLossLimit: number | null;
    effectiveMinTradingDays: number | null;
    /** Current cycle daily P&L — used for target calculations. */
    dailyPnL: { date: string; pnl: number }[];
    /** Full P&L history across all cycles — used for calendar and equity curve display. */
    fullDailyPnL: { date: string; pnl: number }[];
    /** Fund transactions (deposits/withdrawals) — used by the calendar and equity curve. */
    fundTransactions: { date: string; amount: number }[];
    /** Master account type this account resolved to. null = Unassigned. */
    accountTypeId: string | null;
    accountTypeLabel: string | null;
    assignmentSource: 'manual' | 'auto' | 'unassigned';
    /** The resolved config inlined, so client components need no second lookup. */
    accountType: AccountConfig | null;
    /** Size from the initial funding transaction; null until reports return. */
    inferredAccountSize: number | null;
    /** True when more than one account type matched and updatedAt decided it. */
    accountTypeAmbiguous: boolean;
    /** ISO. Decides which of the type's rule sets the account trades on: one
     *  dated before a firm's rule change keeps the old rules. Defaults to when
     *  the account started (broker's first deposit / registration), else when
     *  this machine first saw it. null = no assignment row yet. */
    rulesDate: string | null;
    /** True when the rules date was set by hand — broker evidence never moves it. */
    rulesDateManual: boolean;
    /** The old rule set the account trades on; null = the type's current
     *  rules. accountType above already carries these rules. */
    keptRules: (KeptRulesWindow & {
        /** Rule fields where the kept set differs from the type's current
         *  rules — raw values; the dashboard formats them. */
        differs: { field: string; kept: unknown; now: unknown }[];
    }) | null;
}

export interface FirmState {
    /** Master's firm id — join state to config on this, not on the name, which
     *  changes the moment someone renames a firm on the master. */
    firmId: string;
    firm: string;
    connected: boolean;
    accounts: AccountState[];
}

/** One recorded position (GET /api/trades) — Vest's position history plus
 *  what this instance did itself. */
export interface TradeView {
    positionId: string;
    accountId: number;
    accountName: string;
    symbol: string;
    side: 'long' | 'short';
    quantity: number;
    openPrice: number | null;
    closePrice: number | null;
    /** Realized P&L before fees and funding. */
    pnl: number | null;
    fee: number | null;
    funding: number | null;
    /** pnl − fee + funding; null while open (or unknown). */
    net: number | null;
    openedAt: number;
    closedAt: number | null;
    /** null: opened before this instance began marking its own trades. */
    openedBy: 'bot' | 'outside' | null;
    /** null while open; else 'bot', 'outside' (closed by hand or another
     *  tool), or the platform's own reason (stop_loss, take_profit,
     *  liquidation, …; user_requested from before marking began). */
    closedBy: string | null;
}