obv 수정

frontend/src/components/tradeNotification/TradeSignalMiniChart.tsx

@@ -22,6 +22,7 @@ import { useIndicatorSettings } from '../../hooks/useIndicatorSettings';
 import { useSessionCandleOverlayControls } from '../../hooks/useSessionCandleOverlayControls';
 import { ensurePaperChartOverlays } from '../../utils/strategyToChartIndicators';
 import { mergeGlobalDefaultsOntoChartIndicators } from '../../utils/indicatorMainConfig';
+import { barsMeetObvVolumeRequirement } from '../../utils/obvChartBars';
 import { enrichIndicatorConfig } from '../../utils/indicatorRegistry';
 import {
   applyNotificationSignalMarkers,
@@ -135,7 +136,10 @@ const TradeSignalMiniChart: React.FC<Props> = ({
     managerRef.current = mgr;
     syncToManager(mgr);
     applySignalMarkers();
-  }, [syncToManager, applySignalMarkers]);
+    if (needsDeepObv) {
+      void mgr.repairDualLineSeries();
+    }
+  }, [syncToManager, applySignalMarkers, needsDeepObv]);
 
   const applyRealtimeBar = useCallback((bar: OHLCVBar, append: boolean) => {
     if (barsMarketRef.current !== marketRef.current) return;
@@ -185,7 +189,7 @@ const TradeSignalMiniChart: React.FC<Props> = ({
   const obvBarsReady = useMemo(() => {
     if (!needsDeepObv) return true;
     if (bars.length < 2) return false;
-    return bars.some(b => (Number(b.volume) || 0) > 0);
+    return barsMeetObvVolumeRequirement(bars);
   }, [needsDeepObv, bars]);
 
   const chartDataReady = barsReady && obvBarsReady && settingsLoaded;

frontend/src/utils/ChartManager.ts

@@ -1203,6 +1203,7 @@ export class ChartManager {
 
     if (this._indicatorLoadStale(loadGen)) return;
 
+    await this.repairDualLineSeries();
     this._finalizeIndicatorPaneLayout();
     this._refreshAllIchimokuClouds();
     this.syncChartOverlayVisibility();
@@ -1250,6 +1251,7 @@ export class ChartManager {
     }
     if (this._indicatorLoadStale(loadGen)) return;
 
+    await this.repairDualLineSeries();
     this._finalizeIndicatorPaneLayout();
   }
 

frontend/src/utils/obvChartBars.ts

@@ -0,0 +1,10 @@
+import type { OHLCVBar } from '../types';
+
+/** OBV 본선 계산에 필요한 최소 거래량 품질 (some>0 만으로는 STOMP volume=0 history 통과) */
+export function barsMeetObvVolumeRequirement(bars: OHLCVBar[]): boolean {
+  if (bars.length < 2) return false;
+  const withVol = bars.filter(b => (Number(b.volume) || 0) > 0).length;
+  const volSum = bars.reduce((s, b) => s + (Number(b.volume) || 0), 0);
+  const minBarsWithVol = Math.max(20, Math.floor(bars.length * 0.5));
+  return volSum > 0 && withVol >= minBarsWithVol;
+}

frontend/src/utils/strategyToChartIndicators.ts

@@ -68,10 +68,14 @@ type GetVisual = (
   cloudColors?: import('./ichimokuConfig').IchimokuCloudColors;
 };
 
-let _idSeq = 0;
-function newIndId(): string {
-  _idSeq += 1;
-  return `vstrat_${_idSeq}_${Date.now()}`;
+/** 전략 DSL 기준 안정 id — getVisualConfig/settingsRevision 변경 시 id 재발급 방지 */
+export function stableStrategyIndicatorId(ref: IndicatorRef): string {
+  const parts = [ref.registryType];
+  if (ref.period != null) parts.push(`p${ref.period}`);
+  if (ref.leftPeriod != null) parts.push(`l${ref.leftPeriod}`);
+  if (ref.rightPeriod != null) parts.push(`r${ref.rightPeriod}`);
+  if (ref.targetValue != null) parts.push(`t${ref.targetValue}`);
+  return `strat_${parts.join('_')}`;
 }
 
 export function candleTypeToTimeframe(candleType: string): Timeframe {
@@ -171,6 +175,7 @@ function buildOneIndicator(
   ref: IndicatorRef,
   getParams: GetParams,
   getVisual: GetVisual,
+  stableId?: string,
 ): IndicatorConfig | null {
   const def = getIndicatorDef(ref.registryType);
   if (!def) return null;
@@ -179,7 +184,7 @@ function buildOneIndicator(
   const { plots, hlines, cloudColors } = getVisual(ref.registryType, def.plots, def.hlines ?? []);
 
   let cfg: IndicatorConfig = {
-    id: newIndId(),
+    id: stableId ?? stableStrategyIndicatorId(ref),
     type: def.type,
     params: { ...params },
     plots,
@@ -295,6 +300,7 @@ export function ensurePaperChartOverlays(
       { dslType: 'MA', registryType: 'SMA' },
       getParams,
       getVisual,
+      'strat_overlay_SMA',
     );
     if (sma) prepend.push(sma);
   }
@@ -303,6 +309,7 @@ export function ensurePaperChartOverlays(
       { dslType: 'ICHIMOKU', registryType: 'IchimokuCloud' },
       getParams,
       getVisual,
+      'strat_overlay_IchimokuCloud',
     );
     if (ichimoku) prepend.push(ichimoku);
   }
@@ -311,6 +318,7 @@ export function ensurePaperChartOverlays(
       { dslType: 'BOLLINGER', registryType: 'BollingerBands' },
       getParams,
       getVisual,
+      'strat_overlay_BollingerBands',
     );
     if (bb) prepend.push(bb);
   }