// 모의투자(Paper Trading) 도메인 타입 — Backend Application/Features/Api/Paper/*/Response.cs 대응 (camelCase 직렬화)
// enum 은 Backend Response DTO 에서 .ToString() 으로 문자열화됨 (Stocks 컨벤션 통일 — enum.ToString() PascalCase).
//    값은 Domain/Entities/Paper/ValueObject/* 의 enum 멤버명과 정확히 일치.

// ── enum (문자열 값 = enum 멤버명, d4 §③ / Domain/Entities/Paper/ValueObject/*) ──
export const PaperOrderSide = {
	Buy: 'Buy',
	Sell: 'Sell'
} as const;
export type PaperOrderSideValue = (typeof PaperOrderSide)[keyof typeof PaperOrderSide];

export const PaperFillRule = {
	Open: 'Open',
	Close: 'Close'
} as const;
export type PaperFillRuleValue = (typeof PaperFillRule)[keyof typeof PaperFillRule];

export const PaperOrderStatus = {
	Pending: 'Pending',
	Filled: 'Filled',
	Cancelled: 'Cancelled',
	Rejected: 'Rejected'
} as const;
export type PaperOrderStatusValue = (typeof PaperOrderStatus)[keyof typeof PaperOrderStatus];

export const PaperLedgerType = {
	Deposit: 'Deposit',
	Withdraw: 'Withdraw'
} as const;
export type PaperLedgerTypeValue = (typeof PaperLedgerType)[keyof typeof PaperLedgerType];

// ── 표시 라벨 ──
export const PAPER_SIDE_LABEL: Record<PaperOrderSideValue, string> = {
	[PaperOrderSide.Buy]: '매수',
	[PaperOrderSide.Sell]: '매도'
};

export const PAPER_FILL_RULE_LABEL: Record<PaperFillRuleValue, string> = {
	[PaperFillRule.Open]: '시가',
	[PaperFillRule.Close]: '종가'
};

export const PAPER_ORDER_STATUS_LABEL: Record<PaperOrderStatusValue, string> = {
	[PaperOrderStatus.Pending]: '접수',
	[PaperOrderStatus.Filled]: '체결',
	[PaperOrderStatus.Cancelled]: '취소',
	[PaperOrderStatus.Rejected]: '거부'
};

export const PAPER_LEDGER_TYPE_LABEL: Record<PaperLedgerTypeValue, string> = {
	[PaperLedgerType.Deposit]: '입금',
	[PaperLedgerType.Withdraw]: '출금'
};

// ── GET /api/paper/account ──
export interface PaperAccountResponse {
	hasAccount: boolean;
	token: number;
	reservedToken: number;
	units: number;
	equity: number;
	cumReturnBp: number;
	positionsCount: number;
}

// ── POST /api/paper/account/deposit ──
export interface PaperDepositResponse {
	token: number;
	units: number;
	unitsIssued: number;
}

// ── POST /api/paper/account/withdraw ──
export interface PaperWithdrawResponse {
	token: number;
	units: number;
	unitsBurned: number;
	credited: number;
	burned: number;
}

// ── GET /api/paper/positions ──
export interface PaperPositionRow {
	stockCode: string;
	stockName: string;
	quantity: number;
	reservedQuantity: number;
	avgPrice: number;
	latestClose: number|null;
	marketValue: number;
	unrealizedPnL: number;
	unrealizedPnLBp: number;
}

export interface PaperPositionsResponse {
	list: PaperPositionRow[];
}

// ── POST /api/paper/orders ──
export interface PaperPlaceOrderResponse {
	orderID: number;
	side: PaperOrderSideValue;
	fillRule: PaperFillRuleValue;
	targetDate: string;
	cancelableUntil: string;
	quantity: number;
	reservedAmount: number;
}

// ── GET /api/paper/orders ──
export interface PaperFillInfo {
	price: number;
	quantity: number;
	fee: number;
	tax: number;
	amount: number;
	realizedPnL: number|null;
	priceDate: string;
	filledAt: string;
}

export interface PaperOrderRow {
	id: number;
	stockCode: string;
	stockName: string;
	side: PaperOrderSideValue;
	fillRule: PaperFillRuleValue;
	quantity: number;
	reservedAmount: number;
	targetDate: string;
	cancelableUntil: string;
	status: PaperOrderStatusValue;
	rejectReason: string|null;
	createdAt: string;
	fill: PaperFillInfo|null;
}

export interface PaperOrdersResponse {
	total: number;
	list: PaperOrderRow[];
}

// ── GET /api/paper/ledger ──
export interface PaperLedgerRow {
	id: number;
	type: PaperLedgerTypeValue;
	tokenAmount: number;
	unitsDelta: number;
	balanceAfter: number;
	createdAt: string;
}

export interface PaperLedgerResponse {
	total: number;
	list: PaperLedgerRow[];
}

// ── GET /api/paper/leaderboard ──
export type PaperLeaderboardSort = 'return'|'winrate'|'mdd';
export type PaperLeaderboardPeriod = 'week'|'month'|'all';

export interface PaperLeaderboardRow {
	rank: number;
	memberSID: string;
	nickname: string|null;
	thumb: string|null;
	returnBp: number;
	winRateBp: number;
	mddBp: number;
	fillCount: number;
}

export interface PaperLeaderboardResponse {
	sort: string;
	period: string;
	page: number;
	pageSize: number;
	rows: PaperLeaderboardRow[];
}

// ── GET /api/paper/leaderboard/me ──
export interface PaperMyRankResponse {
	sort: string;
	period: string;
	hasRank: boolean;
	rank: number;
	total: number;
	returnBp: number;
	winRateBp: number;
	mddBp: number;
	fillCount: number;
}

// ── GET /api/paper/members/{sid}/track-record ──
export interface PaperTrackRecordResponse {
	hasAccount: boolean;
	cumReturnBp: number;
	mddBp: number;
	winRateBp: number;
	fillCount: number;
	latestTradeDate: string|null;
}