Macbook
94 lines
3.4 KiB
TypeScript
94 lines
3.4 KiB
TypeScript
/** 보조지표 차트 hline 역할 — DSL에 숫자(K_70) 대신 저장해 DB 설정 변경 시 자동 반영 */
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export const THRESHOLD_HL_OVER = 'HL_OVER';
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export const THRESHOLD_HL_MID = 'HL_MID';
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export const THRESHOLD_HL_UNDER = 'HL_UNDER';
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export type ThresholdHlineRole = typeof THRESHOLD_HL_OVER | typeof THRESHOLD_HL_MID | typeof THRESHOLD_HL_UNDER;
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export function isThresholdSymbol(field?: string): boolean {
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return field === THRESHOLD_HL_OVER || field === THRESHOLD_HL_MID || field === THRESHOLD_HL_UNDER;
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}
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export function isThresholdFieldOrSymbol(field?: string): boolean {
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return !!field && (field.startsWith('K_') || isThresholdSymbol(field));
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}
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type HlThresh = { over?: number; mid?: number; under?: number };
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export function resolveThresholdFromDef(
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field: string | undefined,
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indicatorType: string,
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hlThresh: Record<string, HlThresh>,
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): number | null {
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if (!field) return null;
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const th = hlThresh[indicatorType] ?? {};
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if (field === THRESHOLD_HL_OVER) return th.over ?? null;
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if (field === THRESHOLD_HL_MID) return th.mid ?? null;
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if (field === THRESHOLD_HL_UNDER) return th.under ?? null;
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if (field.startsWith('K_')) {
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const n = parseFloat(field.slice(2));
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return Number.isFinite(n) ? n : null;
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}
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return null;
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}
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/** 레거시 K_ 값 → hline 역할 심볼 (정확 일치 우선, 없으면 가장 가까운 역할) */
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export function inferThresholdSymbolFromLegacy(
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field: string | undefined,
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indicatorType: string,
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hlThresh: Record<string, HlThresh>,
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): string | undefined {
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if (!field?.startsWith('K_')) return field;
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const val = parseFloat(field.slice(2));
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if (!Number.isFinite(val)) return field;
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const th = hlThresh[indicatorType] ?? {};
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const eps = 0.0001;
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if (th.over != null && Math.abs(th.over - val) < eps) return THRESHOLD_HL_OVER;
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if (th.mid != null && Math.abs(th.mid - val) < eps) return THRESHOLD_HL_MID;
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if (th.under != null && Math.abs(th.under - val) < eps) return THRESHOLD_HL_UNDER;
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const candidates: { role: ThresholdHlineRole; v: number }[] = [];
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if (th.over != null) candidates.push({ role: THRESHOLD_HL_OVER, v: th.over });
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if (th.mid != null) candidates.push({ role: THRESHOLD_HL_MID, v: th.mid });
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if (th.under != null) candidates.push({ role: THRESHOLD_HL_UNDER, v: th.under });
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if (candidates.length === 0) return defaultInheritedThresholdField(indicatorType);
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let best = candidates[0];
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let bestDiff = Math.abs(best.v - val);
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for (const c of candidates.slice(1)) {
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const d = Math.abs(c.v - val);
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if (d < bestDiff) {
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best = c;
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bestDiff = d;
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}
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}
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return best.role;
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}
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/** 상속 모드(thresholdOverride=false) — K_ 스냅샷을 hline 역할 심볼로 정규화 */
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export function resolveInheritedThresholdField(
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field: string | undefined,
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indicatorType: string,
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hlThresh: Record<string, HlThresh>,
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): string | undefined {
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if (!field) return field;
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if (isThresholdSymbol(field)) return field;
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if (field.startsWith('K_')) {
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return inferThresholdSymbolFromLegacy(field, indicatorType, hlThresh)
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?? defaultInheritedThresholdField(indicatorType);
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}
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return field;
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}
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/** 상속 모드 기본 rightField — 과열선 역할 */
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export function defaultInheritedThresholdField(indicatorType: string): string {
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switch (indicatorType) {
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case 'DISPARITY':
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case 'VOLUME_OSC':
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case 'TRIX':
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return THRESHOLD_HL_MID;
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default:
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return THRESHOLD_HL_OVER;
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}
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}
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