goldenChat base source add

2026-05-23 15:11:48 +09:00
commit a4ea7762b5
2081 changed files with 1155760 additions and 0 deletions
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+/**
+ * 볼린저밴드 (업비트 BB 설정)
+ * - 길이(length) 기본 20, 곱(mult) 기본 2, 오프셋(offset) 기본 0
+ * - 기준선: 종가 SMA, 표준편차는 모집단(N) 기준
+ */
+import type { OHLCVBar, Timeframe } from '../types';
+import type { PlotData } from './indicatorRegistry';
+import { fetchUpbitCandles, isUpbitMarket } from './upbitApi';
+
+export const BB_DEFAULT_LENGTH = 20;
+export const BB_DEFAULT_MULT = 2;
+export const BB_DEFAULT_OFFSET = 0;
+
+/** 업비트 BB 백그라운드 그리기 기본 (반투명 파랑) */
+export const DEFAULT_BB_BAND_BACKGROUND = {
+  visible: true,
+  color: '#42A5F528',
+} as const;
+
+const BB_PLOT_TITLES = ['중앙값', '어퍼', '로우어'] as const;
+const BB_PLOT_IDS = ['plot0', 'plot1', 'plot2'] as const;
+const BB_DEFAULT_COLORS = ['#FF9800', '#42A5F5', '#42A5F5'] as const;
+
+export type BbSymbolMode = 'main' | 'other';
+
+export type BbBandBackground = { visible: boolean; color: string };
+
+export function resolveBbBandBackground(
+  bg?: Partial<BbBandBackground> | null,
+): BbBandBackground {
+  return {
+    visible: bg?.visible !== false,
+    color: bg?.color ?? DEFAULT_BB_BAND_BACKGROUND.color,
+  };
+}
+
+/** 업비트 플롯 정의 병합 (중앙값·어퍼·로우어, 기본 색) */
+export function mergeBbPlots(
+  saved: import('./indicatorRegistry').PlotDef[] | undefined,
+  defaults: import('./indicatorRegistry').PlotDef[],
+): import('./indicatorRegistry').PlotDef[] {
+  const byId = new Map((saved ?? []).map(p => [p.id, p]));
+  return BB_PLOT_IDS.map((id, i) => {
+    const def = defaults.find(p => p.id === id) ?? defaults[i];
+    const prev = byId.get(id);
+    return {
+      ...def,
+      ...prev,
+      id,
+      title: BB_PLOT_TITLES[i],
+      color: prev?.color ?? BB_DEFAULT_COLORS[i],
+    };
+  });
+}
+
+/** 차트 레전드: BB 20 2 0 SMA */
+export function formatBbLegendLabel(
+  params: Record<string, number | string | boolean>,
+): string {
+  const p = normalizeBollingerParams(params);
+  const ma = String(p.maType ?? 'SMA').replace(/\s*\(.*\)\s*/g, '').trim();
+  return `BB ${p.length} ${p.mult} ${p.offset} ${ma}`;
+}
+
+export function normalizeBollingerParams(
+  params: Record<string, number | string | boolean>,
+): Record<string, number | string | boolean> {
+  const length = Math.max(1, Math.round(Number(params.length ?? BB_DEFAULT_LENGTH) || BB_DEFAULT_LENGTH));
+  const mult = Math.max(0.001, Number(params.mult ?? BB_DEFAULT_MULT) || BB_DEFAULT_MULT);
+  const offset = Math.round(Number(params.offset ?? BB_DEFAULT_OFFSET) || 0);
+  const rawMode = String(params.symbolMode ?? 'main');
+  const symbolMode: BbSymbolMode = rawMode === 'other' ? 'other' : 'main';
+  const refSymbol = String(params.refSymbol ?? '').trim().toUpperCase();
+  return {
+    ...params,
+    length,
+    mult,
+    offset,
+    symbolMode,
+    refSymbol,
+    src: 'close',
+    maType: 'SMA',
+  };
+}
+
+/** TradingView/업비트 오프셋: 양수면 플롯을 오른쪽(미래)으로 이동 */
+export function applyPlotOffset(data: PlotData, offset: number): PlotData {
+  if (!offset) return data;
+  const n = data.length;
+  return data.map((point, i) => {
+    const srcIdx = i - offset;
+    if (srcIdx < 0 || srcIdx >= n) {
+      return { time: point.time, value: NaN };
+    }
+    return { time: point.time, value: data[srcIdx].value };
+  });
+}
+
+/** 다른 심볼 캔들을 메인 차트 시간축에 맞춤 (같은 time 키) */
+export function alignBarsToMainTimeline(mainBars: OHLCVBar[], refBars: OHLCVBar[]): OHLCVBar[] {
+  const byTime = new Map(refBars.map(b => [b.time, b]));
+  return mainBars.map(mb => {
+    const ref = byTime.get(mb.time);
+    if (!ref) {
+      return { ...mb, open: NaN, high: NaN, low: NaN, close: NaN, volume: 0 };
+    }
+    return ref;
+  });
+}
+
+export async function resolveBollingerBars(
+  mainBars: OHLCVBar[],
+  params: Record<string, number | string | boolean>,
+  timeframe: Timeframe,
+): Promise<OHLCVBar[]> {
+  const p = normalizeBollingerParams(params);
+  if (p.symbolMode !== 'other') return mainBars;
+  const ref = String(p.refSymbol ?? '');
+  if (!ref || !isUpbitMarket(ref)) return mainBars;
+  try {
+    const refBars = await fetchUpbitCandles(ref, timeframe, mainBars.length);
+    return alignBarsToMainTimeline(mainBars, refBars);
+  } catch (e) {
+    console.warn('[BB] ref symbol fetch failed:', ref, e);
+    return mainBars;
+  }
+}