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No network calls.\n\nimport type {\n Candle, CandlePattern, FVG, LiquiditySweep, OrderBlock,\n SMCAnalysis, StructureBreak, SwingPoint,\n} from \"./types.ts\";\n\n// ---- 1. Swing highs / lows (5-candle window: 2 left, center, 2 right) ----\nexport function findSwings(candles: Candle[]): SwingPoint[] {\n const swings: SwingPoint[] = [];\n for (let i = 2; i < candles.length - 2; i++) {\n const c = candles[i];\n const isHigh =\n c.high > candles[i - 1].high && c.high > candles[i - 2].high &&\n c.high > candles[i + 1].high && c.high > candles[i + 2].high;\n const isLow =\n c.low < candles[i - 1].low && c.low < candles[i - 2].low &&\n c.low < candles[i + 1].low && c.low < candles[i + 2].low;\n if (isHigh) swings.push({ index: i, time: c.time, price: c.high, type: \"high\" });\n if (isLow) swings.push({ index: i, time: c.time, price: c.low, type: \"low\" });\n }\n return swings;\n}\n\n// ---- 2. Structure breaks: BOS / CHoCH ----\nexport function findStructureBreaks(candles: Candle[], swings: SwingPoint[]): StructureBreak[] {\n const breaks: StructureBreak[] = [];\n let lastDirection: \"bullish\" | \"bearish\" | null = null;\n\n // track the most recent confirmed swing high & low as the candles advance\n for (let i = 0; i < candles.length; i++) {\n const close = candles[i].close;\n\n // most recent swing high/low that occurred strictly before candle i\n let activeHigh: SwingPoint | undefined;\n let activeLow: SwingPoint | undefined;\n for (const s of swings) {\n if (s.index >= i) break;\n if (s.type === \"high\") activeHigh = s;\n else activeLow = s;\n }\n\n if (activeHigh && close > activeHigh.price) {\n const direction = \"bullish\";\n const kind = lastDirection === \"bearish\" ? \"CHoCH\" : \"BOS\";\n breaks.push({ index: i, time: candles[i].time, price: activeHigh.price, kind, direction });\n lastDirection = direction;\n // prevent duplicate detection on the same swing: bump it out\n activeHigh.price = Infinity;\n } else if (activeLow && close < activeLow.price) {\n const direction = \"bearish\";\n const kind = lastDirection === \"bullish\" ? \"CHoCH\" : \"BOS\";\n breaks.push({ index: i, time: candles[i].time, price: activeLow.price, kind, direction });\n lastDirection = direction;\n activeLow.price = -Infinity;\n }\n }\n return breaks;\n}\n\n// ---- 3. Fair Value Gaps ----\nexport function findFVGs(candles: Candle[]): FVG[] {\n const fvgs: FVG[] = [];\n for (let i = 2; i < candles.length; i++) {\n const c1 = candles[i - 2], c3 = candles[i];\n // bullish FVG: 3rd low > 1st high\n if (c3.low > c1.high) {\n const fvg: FVG = {\n index: i - 1, time: candles[i - 1].time,\n top: c3.low, bottom: c1.high, direction: \"bullish\", mitigated: false,\n };\n for (let j = i + 1; j < candles.length; j++) {\n if (candles[j].low <= fvg.bottom) { fvg.mitigated = true; break; }\n }\n fvgs.push(fvg);\n } else if (c3.high < c1.low) {\n // bearish FVG: 3rd high < 1st low\n const fvg: FVG = {\n index: i - 1, time: candles[i - 1].time,\n top: c1.low, bottom: c3.high, direction: \"bearish\", mitigated: false,\n };\n for (let j = i + 1; j < candles.length; j++) {\n if (candles[j].high >= fvg.top) { fvg.mitigated = true; break; }\n }\n fvgs.push(fvg);\n }\n }\n return fvgs;\n}\n\n// ---- 4. Order Blocks ----\nexport function findOrderBlocks(candles: Candle[]): OrderBlock[] {\n const obs: OrderBlock[] = [];\n for (let i = 1; i < candles.length; i++) {\n const prev = candles[i - 1], cur = candles[i];\n const prevBody = Math.abs(prev.close - prev.open);\n const curBody = Math.abs(cur.close - cur.open);\n const curRange = cur.high - cur.low;\n const impulsive = curBody > prevBody * 1.8 || curRange > 4.5;\n if (!impulsive) continue;\n\n const bullishImpulse = cur.close > cur.open;\n // opposite-color candle immediately before the impulse\n if (bullishImpulse && prev.close < prev.open) {\n const ob: OrderBlock = {\n index: i - 1, time: prev.time,\n top: prev.high, bottom: prev.low, direction: \"bullish\", mitigated: false,\n };\n for (let j = i + 1; j < candles.length; j++) {\n if (candles[j].low <= ob.top && candles[j].low >= ob.bottom) { ob.mitigated = true; break; }\n }\n obs.push(ob);\n } else if (!bullishImpulse && prev.close > prev.open) {\n const ob: OrderBlock = {\n index: i - 1, time: prev.time,\n top: prev.high, bottom: prev.low, direction: \"bearish\", mitigated: false,\n };\n for (let j = i + 1; j < candles.length; j++) {\n if (candles[j].high >= ob.bottom && candles[j].high <= ob.top) { ob.mitigated = true; break; }\n }\n obs.push(ob);\n }\n }\n return obs;\n}\n\n// ---- 5. Liquidity sweeps (stop hunts) ----\nexport function findSweeps(candles: Candle[]): LiquiditySweep[] {\n const sweeps: LiquiditySweep[] = [];\n const lookback = 20;\n for (let i = lookback; i < candles.length; i++) {\n const window = candles.slice(i - lookback, i);\n const highestHigh = Math.max(...window.map((c) => c.high));\n const lowestLow = Math.min(...window.map((c) => c.low));\n const c = candles[i];\n // BSL swept: wick above prior high but closes back below it\n if (c.high > highestHigh && c.close < highestHigh) {\n sweeps.push({ index: i, time: c.time, price: c.high, kind: \"BSL\" });\n }\n // SSL swept: wick below prior low but closes back above it\n if (c.low < lowestLow && c.close > lowestLow) {\n sweeps.push({ index: i, time: c.time, price: c.low, kind: \"SSL\" });\n }\n }\n return sweeps;\n}\n\n// ---- 6. Candle patterns ----\nexport function findPatterns(candles: Candle[]): CandlePattern[] {\n const patterns: CandlePattern[] = [];\n for (let i = 1; i < candles.length; i++) {\n const c = candles[i], p = candles[i - 1];\n const range = c.high - c.low;\n if (range <= 0) continue;\n const body = Math.abs(c.close - c.open);\n const upperWick = c.high - Math.max(c.open, c.close);\n const lowerWick = Math.min(c.open, c.close) - c.low;\n\n // Hammer\n if (lowerWick >= range * 0.6 && body <= range * 0.3) {\n patterns.push({ index: i, time: c.time, name: \"Hammer (Búa)\", direction: \"bullish\" });\n } // Shooting Star\n else if (upperWick >= range * 0.6 && body <= range * 0.3) {\n patterns.push({ index: i, time: c.time, name: \"Shooting Star (Sao băng)\", direction: \"bearish\" });\n }\n\n // Engulfing\n const pBody = Math.abs(p.close - p.open);\n if (c.close > c.open && p.close < p.open && c.close >= p.open && c.open <= p.close && body > pBody) {\n patterns.push({ index: i, time: c.time, name: \"Bullish Engulfing (Nhấn chìm tăng)\", direction: \"bullish\" });\n } else if (c.close < c.open && p.close > p.open && c.open >= p.close && c.close <= p.open && body > pBody) {\n patterns.push({ index: i, time: c.time, name: \"Bearish Engulfing (Nhấn chìm giảm)\", direction: \"bearish\" });\n }\n\n // Inside Bar\n if (c.high < p.high && c.low > p.low) {\n patterns.push({ index: i, time: c.time, name: \"Inside Bar (Nén lò xo)\", direction: \"neutral\" });\n }\n }\n return patterns;\n}\n\nexport function analyzeAdvanced(candles: Candle[]): SMCAnalysis {\n const swings = findSwings(candles);\n // clone swings for break detection (it mutates prices)\n const swingsForBreaks = swings.map((s) => ({ ...s }));\n return {\n swings,\n structureBreaks: findStructureBreaks(candles, swingsForBreaks),\n fvgs: findFVGs(candles),\n orderBlocks: findOrderBlocks(candles),\n sweeps: findSweeps(candles),\n patterns: findPatterns(candles),\n 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Shared types for the XAU/USD Gold Terminal\n\nexport interface Candle {\n time: number; // unix seconds (candle open time)\n open: number;\n high: number;\n low: number;\n close: number;\n volume: number;\n}\n\nexport type Timeframe = \"1\" | \"5\" | \"15\" | \"60\" | \"1D\";\n\nexport interface RealtimeQuote {\n price: number;\n changePercent: number;\n change: number;\n high: number;\n low: number;\n // technical indicators (from TradingView scanner)\n rsi?: number;\n ema10?: number;\n ema20?: number;\n ema50?: number;\n ema100?: number;\n ema200?: number;\n sma20?: number;\n adx?: number;\n cci20?: number;\n stochK?: number;\n stochD?: number;\n atr?: number;\n macd?: number;\n macdSignal?: number;\n recommendation?: number; // -1..1 overall TV recommendation\n}\n\nexport type SignalType = \"BUY\" | \"SELL\" | \"NEUTRAL\";\n\nexport interface SwingPoint {\n index: number;\n time: number;\n price: number;\n type: \"high\" | \"low\";\n}\n\nexport interface StructureBreak {\n index: number;\n time: number;\n price: number;\n kind: \"BOS\" | \"CHoCH\";\n direction: \"bullish\" | \"bearish\";\n}\n\nexport interface FVG {\n index: number;\n time: number;\n top: number;\n bottom: number;\n direction: \"bullish\" | \"bearish\";\n mitigated: boolean;\n}\n\nexport interface OrderBlock {\n index: number;\n time: number;\n top: number;\n bottom: number;\n direction: \"bullish\" | \"bearish\";\n mitigated: boolean;\n}\n\nexport interface LiquiditySweep {\n index: number;\n time: number;\n price: number;\n kind: \"BSL\" | \"SSL\"; // buy-side / sell-side liquidity swept\n}\n\nexport interface CandlePattern {\n index: number;\n time: number;\n name: string;\n direction: \"bullish\" | \"bearish\" | \"neutral\";\n}\n\nexport interface SMCAnalysis {\n swings: SwingPoint[];\n structureBreaks: StructureBreak[];\n fvgs: FVG[];\n orderBlocks: OrderBlock[];\n sweeps: LiquiditySweep[];\n patterns: CandlePattern[];\n}\n\nexport interface TradeSignal {\n type: SignalType;\n score: number; // 0..100 strength of dominant side\n buyScore: number;\n sellScore: number;\n entry: number;\n stopLoss: number;\n takeProfit1: number;\n takeProfit2: number;\n riskRewardTp1: number;\n riskRewardTp2: number;\n entryReason: string;\n slReason: string;\n tpReason: string;\n atr: number;\n}\n",[],[145,173],"69e56382-5b2c-11f1-8ca8-ee650bb23af1","api.ts","69e56440-5b2c-11f1-8ca8-ee650bb23af1",7,["D",1780038173837],"// Market data layer for XAU/USD — verified working from Val Town.\n// Sources:\n// - Chart OHLC candles: Yahoo Finance (GC=F gold futures), normalized to spot\n// - Realtime price + indicators: TradingView Scanner (FOREXCOM:XAUUSD spot)\n// - Fallback spot price: gold-api.com\n// NOTE: Binance/PAXGUSDT is geo-blocked (HTTP 451) from Val Town infra, so the\n// PAXG path from the original spec is replaced by Yahoo futures + spread delta.\n\nimport type { Candle, RealtimeQuote, Timeframe } from \"./types.ts\";\n\nconst UA = \"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/120 Safari/537.36\";\n\n// ---- timeframe mapping (terminal tf -> yahoo range/interval) ----\nfunction yahooParams(tf: Timeframe): { range: string; interval: string } {\n switch (tf) {\n case \"1\": return { range: \"1d\", interval: \"1m\" };\n case \"5\": return { range: \"5d\", interval: \"5m\" };\n case \"15\": return { range: \"5d\", interval: \"15m\" };\n case \"60\": return { range: \"1mo\", interval: \"1h\" };\n case \"1D\": return { range: \"1y\", interval: \"1d\" };\n default: return { range: \"1mo\", interval: \"1h\" };\n }\n}\n\n// candle open-time bucket length in seconds (for cache-boundary bypass)\nfunction tfSeconds(tf: Timeframe): number {\n switch (tf) {\n case \"1\": return 60;\n case \"5\": return 300;\n case \"15\": return 900;\n case \"60\": return 3600;\n case \"1D\": return 86400;\n default: return 3600;\n }\n}\n\n// ---------- in-memory caches ----------\ninterface ChartCacheEntry { candles: Candle[]; boundary: number; }\nconst chartCache = new Map();\n\nlet quoteCache: { quote: RealtimeQuote; ts: number } | null = null;\n\n// ---------- realtime spot price (used for normalization + quote) ----------\nconst TV_FIELDS = [\n \"close\", \"change\", \"high\", \"low\",\n \"RSI\", \"EMA10\", \"EMA20\", \"EMA50\", \"EMA100\", \"EMA200\", \"SMA20\",\n \"ADX\", \"CCI20\", \"Stoch.K\", \"Stoch.D\", \"ATR\",\n \"MACD.macd\", \"MACD.signal\", \"Recommend.All\",\n];\n\nasync function fetchTradingView(): Promise {\n const url = `https://scanner.tradingview.com/symbol?symbol=FOREXCOM%3AXAUUSD&fields=${TV_FIELDS.join(\",\")}&no_404=true`;\n try {\n const r = await fetch(url, { headers: { \"User-Agent\": UA, Accept: \"application/json\" } });\n if (!r.ok) return null;\n const d = await r.json();\n if (typeof d.close !== \"number\") return null;\n return {\n price: d.close,\n change: d.change ?? 0,\n changePercent: d.close && d.change ? (d.change / (d.close - d.change)) * 100 : 0,\n high: d.high ?? d.close,\n low: d.low ?? d.close,\n rsi: d.RSI,\n ema10: d.EMA10, ema20: d.EMA20, ema50: d.EMA50, ema100: d.EMA100, ema200: d.EMA200,\n sma20: d.SMA20, adx: d.ADX, cci20: d.CCI20,\n stochK: d[\"Stoch.K\"], stochD: d[\"Stoch.D\"], atr: d.ATR,\n macd: d[\"MACD.macd\"], macdSignal: d[\"MACD.signal\"],\n recommendation: d[\"Recommend.All\"],\n };\n } catch {\n return null;\n }\n}\n\nasync function fetchGoldApiSpot(): Promise {\n try {\n const r = await fetch(\"https://api.gold-api.com/price/XAU\");\n if (!r.ok) return null;\n const d = await r.json();\n return typeof d.price === \"number\" ? d.price : null;\n } catch {\n return null;\n }\n}\n\n/** Realtime quote with indicators. Cached 1s to protect upstream IP. */\nexport async function getGoldRealtimePrice(): Promise {\n const now = Date.now();\n if (quoteCache && now - quoteCache.ts < 1000) return quoteCache.quote;\n\n let quote = await fetchTradingView();\n if (!quote) {\n const spot = await fetchGoldApiSpot();\n quote = {\n price: spot ?? 0,\n change: 0,\n changePercent: 0,\n high: spot ?? 0,\n low: spot ?? 0,\n };\n }\n quoteCache = { quote, ts: now };\n return quote;\n}\n\n/** Lightweight price-only probe for ultra-fast polling (500ms). */\nexport async function getGoldPriceOnly(): Promise<{ price: number; changePercent: number }> {\n const q = await getGoldRealtimePrice();\n return { price: q.price, changePercent: q.changePercent };\n}\n\n/**\n * Apply micro-fluctuations (-0.15..+0.15) to simulate a live ticker,\n * clamped within the day's high/low.\n */\nexport function applyWiggle(q: RealtimeQuote): number {\n const wiggle = (Math.random() - 0.5) * 0.3; // -0.15 .. +0.15\n let p = q.price + wiggle;\n if (q.high && p > q.high) p = q.high;\n if (q.low && p < q.low) p = q.low;\n return Math.round(p * 100) / 100;\n}\n\n// ---------- chart candles ----------\nasync function fetchYahooCandles(tf: Timeframe): Promise {\n const { range, interval } = yahooParams(tf);\n const url = `https://query1.finance.yahoo.com/v8/finance/chart/GC%3DF?range=${range}&interval=${interval}`;\n const r = await fetch(url, { headers: { \"User-Agent\": UA } });\n if (!r.ok) throw new Error(`Yahoo HTTP ${r.status}`);\n const data = await r.json();\n const result = data?.chart?.result?.[0];\n if (!result?.timestamp) throw new Error(\"Yahoo: no data\");\n const ts: number[] = result.timestamp;\n const q = result.indicators.quote[0];\n const candles: Candle[] = [];\n for (let i = 0; i < ts.length; i++) {\n const o = q.open[i], h = q.high[i], l = q.low[i], c = q.close[i];\n if (o == null || h == null || l == null || c == null) continue;\n candles.push({\n time: ts[i],\n open: o, high: h, low: l, close: c,\n volume: q.volume?.[i] ?? 0,\n });\n }\n return candles;\n}\n\n/**\n * Get normalized gold chart candles.\n * Yahoo GC=F is futures (carries a premium vs spot), so we shift the whole\n * series by the spread delta (live spot - last futures close) to align with\n * the FOREXCOM:XAUUSD spot price the rest of the terminal uses.\n */\nexport async function getGoldChartData(tf: Timeframe): Promise {\n const now = Math.floor(Date.now() / 1000);\n const bucket = tfSeconds(tf);\n const currentBoundary = Math.floor(now / bucket) * bucket;\n\n const cached = chartCache.get(tf);\n if (cached && cached.boundary === currentBoundary) {\n return cached.candles;\n }\n\n const [raw, quote] = await Promise.all([fetchYahooCandles(tf), getGoldRealtimePrice()]);\n\n // spread normalization\n let candles = raw;\n if (quote.price && raw.length) {\n const lastFutures = raw[raw.length - 1].close;\n const delta = quote.price - lastFutures;\n if (Math.abs(delta) > 0.01 && Math.abs(delta) < 200) {\n candles = raw.map((cd) => ({\n time: cd.time,\n open: round2(cd.open + delta),\n high: round2(cd.high + delta),\n low: round2(cd.low + delta),\n close: round2(cd.close + delta),\n volume: cd.volume,\n }));\n }\n }\n\n chartCache.set(tf, { candles, boundary: currentBoundary });\n return candles;\n}\n\nfunction round2(n: number): number {\n return Math.round(n * 100) / 100;\n}\n",[],[145,180],"85c6724e-5b2c-11f1-a562-ee650bb23af1",["D",1780038220615],[],[145,38],"6e191606-5b2c-11f1-8af1-ee650bb23af1","_test_api.ts","6e1916c4-5b2c-11f1-8af1-ee650bb23af1",8,["D",1780038180882],"import { getGoldChartData, getGoldRealtimePrice, applyWiggle } from \"./api.ts\";\n\nconst q = await getGoldRealtimePrice();\nconsole.log(\"Quote price:\", q.price, \"RSI:\", q.rsi, \"EMA50:\", q.ema50, \"ATR:\", q.atr, \"rec:\", q.recommendation);\nconsole.log(\"Wiggle samples:\", applyWiggle(q), applyWiggle(q), applyWiggle(q));\n\nfor (const tf of [\"1\", \"5\", \"15\", \"60\", \"1D\"] as const) {\n const c = await getGoldChartData(tf);\n const last = c[c.length - 1];\n console.log(`TF ${tf}: ${c.length} candles, last close=${last.close} (normalized to spot)`);\n}\nconsole.log(\"--- ok ---\");\n",[],[145,192],["D",1780038142906],[163,164,165,166],[145],["D",1780037818961],["D",1789441243316],{"_103":102,"_111":107},{"_103":102,"_104":105,"_106":107,"_19":60,"_108":109,"_110":30},{"_13":92,"_37":93,"_48":47,"_94":49,"_95":-5,"_96":-5,"_97":-5,"_98":-5,"_99":-5,"_100":50,"_101":102},"ctx",{"_85":-5,"_130":240,"_241":242,"_243":244,"_245":30,"_246":30,"_247":30,"_248":148,"_249":-5,"_250":-7,"_251":-7,"_252":66,"_253":30,"_254":30,"_255":-5,"_256":30,"_257":30,"_258":30,"_259":-5},"ENV",{"_211":212,"_213":214,"_215":93,"_216":217,"_218":219,"_220":221,"_222":223,"_224":225,"_226":227,"_228":229,"_230":231,"_232":233,"_234":235,"_236":237,"_238":239},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

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