Macbook
49 lines
1.4 KiB
TypeScript
49 lines
1.4 KiB
TypeScript
/**
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* 워크스페이스 slot0 보조지표 — 알림 미니 차트가 메인 차트 인스턴스 스타일과 맞추도록
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*/
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import type { IndicatorConfig } from '../types';
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import { loadWorkspace } from './backendApi';
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let cached: IndicatorConfig[] | null = null;
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let loadPromise: Promise<IndicatorConfig[]> | null = null;
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let loadedSessionKey: number | null = null;
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export function invalidateWorkspaceChartIndicatorsCache(): void {
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cached = null;
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loadPromise = null;
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loadedSessionKey = null;
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}
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export function ensureWorkspaceChartIndicators(sessionKey = 0): Promise<IndicatorConfig[]> {
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if (cached !== null && loadedSessionKey === sessionKey) {
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return Promise.resolve(cached);
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}
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if (loadedSessionKey !== sessionKey) {
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cached = null;
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loadPromise = null;
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}
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if (!loadPromise) {
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loadPromise = loadWorkspace()
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.then(ws => {
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const slot0 = (Array.isArray(ws?.slots) ? ws.slots[0] : null) as
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| { indicators?: IndicatorConfig[] }
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| null;
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cached = Array.isArray(slot0?.indicators) ? slot0!.indicators! : [];
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loadedSessionKey = sessionKey;
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loadPromise = null;
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return cached;
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})
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.catch(() => {
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cached = [];
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loadedSessionKey = sessionKey;
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loadPromise = null;
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return [];
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});
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}
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return loadPromise;
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}
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export function getWorkspaceChartIndicatorsCache(): IndicatorConfig[] | null {
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return cached;
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}
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