54 lines
1.4 KiB
TypeScript
54 lines
1.4 KiB
TypeScript
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import { useMemo } from "react";
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import type {
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DashboardRealtimeTradeTick,
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DashboardStockItem,
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DashboardStockOrderBookResponse,
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} from "@/features/dashboard/types/dashboard.types";
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interface UseCurrentPriceParams {
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stock?: DashboardStockItem | null;
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latestTick: DashboardRealtimeTradeTick | null;
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orderBook: DashboardStockOrderBookResponse | null;
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}
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export function useCurrentPrice({
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stock,
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latestTick,
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orderBook,
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}: UseCurrentPriceParams) {
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return useMemo(() => {
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let currentPrice = stock?.currentPrice ?? 0;
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let change = stock?.change ?? 0;
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let changeRate = stock?.changeRate ?? 0;
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const prevClose = stock?.prevClose ?? 0;
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// 1. Priority: Realtime Tick (Trade WS)
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if (latestTick?.price && latestTick.price > 0) {
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currentPrice = latestTick.price;
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change = latestTick.change;
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changeRate = latestTick.changeRate;
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}
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// 2. Fallback: OrderBook Best Ask (Proxy for current price if no tick)
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else if (
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orderBook?.levels[0]?.askPrice &&
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orderBook.levels[0].askPrice > 0
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) {
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const askPrice = orderBook.levels[0].askPrice;
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currentPrice = askPrice;
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// Recalculate change/rate based on prevClose
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if (prevClose > 0) {
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change = currentPrice - prevClose;
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changeRate = (change / prevClose) * 100;
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}
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}
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return {
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currentPrice,
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change,
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changeRate,
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prevClose,
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};
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}, [stock, latestTick, orderBook]);
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}
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