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ch : 0;\n const l = ch < 0 ? -ch : 0;\n avgGain = (avgGain * (period - 1) + g) / period;\n avgLoss = (avgLoss * (period - 1) + l) / period;\n const rs = avgLoss === 0 ? 100 : avgGain / avgLoss;\n out.push(100 - 100 / (1 + rs));\n }\n return out;\n}\n\nexport function macd(closes: number[]): { macd: number[]; signal: number[]; histogram: number[] } {\n const e12 = ema(closes, 12);\n const e26 = ema(closes, 26);\n const m: number[] = closes.map((_, i) => (e12[i] || 0) - (e26[i] || 0));\n const sig = ema(m, 9);\n const hist: number[] = m.map((v, i) => v - (sig[i] || 0));\n return { macd: m, signal: sig, histogram: hist };\n}\n\nexport function bollinger(closes: number[], period = 20, mult = 2) {\n const middle: number[] = [], upper: number[] = [], lower: number[] = [];\n for (let i = period - 1; i < closes.length; i++) {\n const slice = closes.slice(i - period + 1, i + 1);\n const avg = slice.reduce((a, b) => a + b, 0) / period;\n const variance = slice.reduce((a, b) => a + (b - avg) ** 2, 0) / period;\n const std = Math.sqrt(variance);\n middle.push(avg);\n upper.push(avg + std * mult);\n lower.push(avg - std * mult);\n }\n return { middle, upper, lower };\n}\n\nexport function vwap(candles: any[]): number[] {\n let tpv = 0, vol = 0;\n const out: number[] = [];\n for (const c of candles) {\n const tp = (c.high + c.low + c.close) / 3;\n tpv += tp * c.volume;\n vol += c.volume;\n out.push(vol === 0 ? c.close : tpv / vol);\n }\n return out;\n}\n\nexport function atr(candles: any[], period = 14): number {\n if (candles.length < period + 1) return 0;\n const trs: number[] = [];\n for (let i = 1; i < candles.length; i++) {\n trs.push(Math.max(\n candles[i].high - candles[i].low,\n Math.abs(candles[i].high - candles[i - 1].close),\n Math.abs(candles[i].low - candles[i - 1].close),\n ));\n }\n return trs.slice(-period).reduce((a, b) => a + b, 0) / period;\n}\n\nexport function stochastic(candles: any[], kP = 14, dP = 3) {\n const k: number[] = [];\n for (let i = kP - 1; i < candles.length; i++) {\n const slice = candles.slice(i - kP + 1, i + 1);\n const lo = Math.min(...slice.map((c: any) => c.low));\n const hi = Math.max(...slice.map((c: any) => c.high));\n const cur = candles[i].close;\n k.push(hi === lo ? 50 : ((cur - lo) / (hi - lo)) * 100);\n }\n const d: number[] = [];\n for (let i = dP - 1; i < k.length; i++) {\n d.push(k.slice(i - dP + 1, i + 1).reduce((a, b) => a + b, 0) / dP);\n }\n return { k, d };\n}\n\nexport function adx(candles: any[], period = 14) {\n if (candles.length < period + 2) return { adx: 0, plusDI: 0, minusDI: 0 };\n const trs: number[] = [], pDM: number[] = [], mDM: number[] = [];\n for (let i = 1; i < candles.length; i++) {\n const h = candles[i].high, l = candles[i].low, pc = candles[i - 1].close;\n const ph = candles[i - 1].high, pl = candles[i - 1].low;\n trs.push(Math.max(h - l, Math.abs(h - pc), Math.abs(l - pc)));\n pDM.push(h - ph > pl - l ? Math.max(h - ph, 0) : 0);\n mDM.push(pl - l > h - ph ? Math.max(pl - l, 0) : 0);\n }\n const aTR = trs.slice(-period).reduce((a, b) => a + b, 0) / period;\n const pDI = aTR > 0 ? (pDM.slice(-period).reduce((a, b) => a + b, 0) / period) / aTR * 100 : 0;\n const mDI = aTR > 0 ? (mDM.slice(-period).reduce((a, b) => a + b, 0) / period) / aTR * 100 : 0;\n const dx = (pDI + mDI) > 0 ? Math.abs(pDI - mDI) / (pDI + mDI) * 100 : 0;\n return { adx: isNaN(dx) ? 0 : dx, plusDI: pDI, minusDI: mDI };\n}\n\nexport function ichimoku(candles: any[]) {\n const tenkan: number[] = [], kijun: number[] = [], sA: number[] = [], sB: number[] = [];\n for (let i = 51; i < candles.length; i++) {\n const h9 = Math.max(...candles.slice(i - 8, i + 1).map((c: any) => c.high));\n const l9 = Math.min(...candles.slice(i - 8, i + 1).map((c: any) => c.low));\n const h26 = Math.max(...candles.slice(i - 25, i + 1).map((c: any) => c.high));\n const l26 = Math.min(...candles.slice(i - 25, i + 1).map((c: any) => c.low));\n const h52 = Math.max(...candles.slice(i - 51, i + 1).map((c: any) => c.high));\n const l52 = Math.min(...candles.slice(i - 51, i + 1).map((c: any) => c.low));\n const t = (h9 + l9) / 2, k = (h26 + l26) / 2;\n tenkan.push(t); kijun.push(k);\n sA.push((t + k) / 2); sB.push((h52 + l52) / 2);\n }\n return { tenkan, kijun, senkouA: sA, senkouB: sB };\n}\n","createdAt",["D",1784415787311],"branchVersion","branchId","54943cb1-5eb6-49b1-a5a6-fdb88fd203df",{"_37":52,"_39":53,"_41":54,"_43":-5,"_45":55,"_47":14,"_48":49,"_31":32},"src/lib","af041d0b-a77a-401b-a787-ec6a56c7c7bb","lib","directory",["D",1784415787311],{"_37":58,"_39":57,"_41":54,"_43":-5,"_45":59,"_47":14,"_48":49,"_31":32},"src","83d2c7fd-4498-4a48-b659-784cb3f0d7de",["D",1784415787311],"id","3ff70071-e8b3-453d-b19c-be2c16c3e99f","king-of-gold",["D",1784414655544],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Gold (XAU/USD) trading dashboard demo","imageUrl","92a2409a-59e8-4e9a-8fcb-0f2ef364a8f4","pinnedFileId","3d4fdd20-82fa-11f1-a886-1607ee4eb77e","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","019f7763-604a-7497-acd2-b97f42ba11bc","tursoName","3ff70071e8b3453db19cbe2c16c3e99f","tursoHostname","3ff70071e8b3453db19cbe2c16c3e99f-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789472446807],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_117":116,"_125":121},"org",{"_117":116,"_118":119,"_120":121,"_19":72,"_122":123,"_124":32},"branch",{"_13":106,"_39":107,"_60":49,"_108":61,"_109":-5,"_110":-5,"_111":-5,"_112":-5,"_113":-5,"_114":62,"_115":116},"isOwned",19,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","Kingblackgold","handle","displayName","kingblack4","avatar","https://avatars.githubusercontent.com/u/306623541?v=4","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_60":61,"_39":62,"_45":192,"_64":-5,"_65":32,"_66":67,"_68":67,"_69":70,"_71":-5,"_19":72,"_73":74,"_75":76,"_77":-5,"_78":-5,"_79":80,"_81":82,"_83":84,"_85":86,"_87":193,"_89":-5,"_90":91,"_92":91,"_93":94,"_95":94,"_96":94,"_97":91,"_98":91,"_99":194,"_101":195,"_103":196,"_105":32},"tree",[173,176],"files",[173,174,175,176],"counts",{"_163":80,"_164":153,"_165":80,"_166":167,"_168":169},"contents",[148,149],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_60":160,"_39":57,"_37":58,"_152":-5,"_48":49,"_47":14,"_154":76,"_45":161,"_13":80,"_41":54,"_43":-5,"_31":32,"_158":-5,"_34":162},{"_60":150,"_39":151,"_37":74,"_152":-5,"_48":49,"_47":153,"_154":32,"_45":155,"_13":80,"_41":156,"_43":157,"_31":32,"_158":-5,"_34":159},"3831d0be-4ac1-439b-ba50-138b262c3862","main.ts","parentId",1,"latest",["D",1784414670717],"http","// King of Gold — simplified demo dashboard (simulated price feed, no external API keys needed)\n\nlet price = 2350 + Math.random() * 20;\nconst history: number[] = [price];\n\nfunction tick() {\n const change = (Math.random() - 0.5) * 4;\n price = Math.max(1800, price + change);\n history.push(price);\n if (history.length > 50) history.shift();\n}\n\nfunction signal() {\n if (history.length < 10) return { direction: \"NEUTRAL\", confidence: 0 };\n const fast = avg(history.slice(-5));\n const slow = avg(history.slice(-10));\n if (fast > slow) return { direction: \"BUY\", confidence: Math.min(95, Math.round(((fast - slow) / slow) * 5000)) };\n if (fast < slow) return { direction: \"SELL\", confidence: Math.min(95, Math.round(((slow - fast) / slow) * 5000)) };\n return { direction: \"NEUTRAL\", confidence: 0 };\n}\n\nfunction avg(arr: number[]) {\n return arr.reduce((a, b) => a + b, 0) / arr.length;\n}\n\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n\n if (url.pathname === \"/api/price\") {\n tick();\n return Response.json({\n price: Math.round(price * 100) / 100,\n history: history.map((p) => Math.round(p * 100) / 100),\n signal: signal(),\n timestamp: Date.now(),\n });\n }\n\n return new Response(HTML, { headers: { \"Content-Type\": \"text/html\" } });\n}\n\nconst HTML = `\n\n\n\n\n👑 King of Gold\n\n\n\n

👑 King of Gold

\n Live Demo\n

XAU/USD (simulated)

\n --\n \n

Price History

This is a simplified starter — a simulated price feed and a moving-average signal. Ask to add real market data, strategies, or trade journaling.

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Diff · v2