Henry Hub Forward Curve

[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_153":154,"_155":156},"routes/_app.x.$handle.$name",{"_95":94,"_32":45,"_104":85,"_27":53,"_13":14,"_105":-5,"_11":106,"_107":108,"_109":110,"_111":112,"_113":114,"_20":-5,"_115":-5,"_116":-5,"_117":25,"_118":119,"_120":25,"_121":-5,"_122":-5,"_123":124},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_43":44,"_32":45,"_38":46,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":-5,"_57":25,"_58":-5,"_59":-5,"_60":61,"_62":63,"_64":-5,"_65":-5,"_66":-5,"_67":-5,"_68":69,"_70":69,"_71":72,"_73":72,"_74":72,"_75":69,"_76":69,"_77":78,"_79":80,"_81":82,"_83":25},"version",7,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":37,"_35":36,"_38":39,"_40":14,"_41":42,"_24":25},"previous",{"_30":31,"_32":28,"_33":34,"_35":36},"deleted",false,"deletedHere","path","main.ts","latestPath","fileId","04de85c2-9d9e-11f1-b561-1607ee4eb77e","name","fileType","script","content","/**\n * SEG Daily Henry Hub Forward Curve Report\n * -----------------------------------------\n * Pulls the 48-month NYMEX Henry Hub (NG) natural gas forward curve and\n * emails a formatted report every weekday at 8:30 AM Eastern.\n *\n * Platform: Val Town (Deno). Cron: \"30 12,13 * * *\" (UTC)\n * The double UTC hour + the isReportTime() guard below makes the job\n * fire at 8:30 AM Eastern year-round, through both EDT and EST.\n *\n * Data source: Yahoo Finance chart API (free, no key, no login).\n * Symbol format: NG{monthCode}{YY}.NYM e.g. NGV26.NYM = Oct 2026\n */\n\nimport { email } from \"https://esm.town/v/std/email\";\n\n// ---------------------------------------------------------------- constants\n\nconst MONTH_CODES = [\n \"F\",\n \"G\",\n \"H\",\n \"J\",\n \"K\",\n \"M\",\n \"N\",\n \"Q\",\n \"U\",\n \"V\",\n \"X\",\n \"Z\",\n]; // Jan..Dec\nconst MONTH_NAMES = [\n \"January\",\n \"February\",\n \"March\",\n \"April\",\n \"May\",\n \"June\",\n \"July\",\n \"August\",\n \"September\",\n \"October\",\n \"November\",\n \"December\",\n];\nconst MONTH_ABBR = [\n \"Jan\",\n \"Feb\",\n \"Mar\",\n \"Apr\",\n \"May\",\n \"Jun\",\n \"Jul\",\n \"Aug\",\n \"Sep\",\n \"Oct\",\n \"Nov\",\n \"Dec\",\n];\n\nconst CURVE_LENGTH = 48; // months of forward curve to report\nconst RECIPIENTS: string[] = []; // leave empty = send to your own Val Town account email\n\n// SEG palette\nconst C = {\n navy: \"#12395F\",\n blue: \"#1B4B8F\",\n accent: \"#E8F1FA\",\n rule: \"#C9DCF0\",\n ink: \"#1F2933\",\n muted: \"#6B7A8D\",\n up: \"#0F7B4F\",\n down: \"#B3261E\",\n};\n\n// ------------------------------------------------------------ time handling\n\n/** Current wall-clock parts in America/New_York. */\nfunction easternNow(): {\n y: number;\n m: number;\n d: number;\n hour: number;\n minute: number;\n weekday: string;\n} {\n const fmt = new Intl.DateTimeFormat(\"en-US\", {\n timeZone: \"America/New_York\",\n year: \"numeric\",\n month: \"numeric\",\n day: \"numeric\",\n hour: \"numeric\",\n minute: \"numeric\",\n weekday: \"short\",\n hour12: false,\n });\n const p: Record = {};\n for (const part of fmt.formatToParts(new Date())) p[part.type] = part.value;\n return {\n y: +p.year,\n m: +p.month,\n d: +p.day,\n hour: +p.hour % 24,\n minute: +p.minute,\n weekday: p.weekday,\n };\n}\n\n/**\n * Eastern hours in which a report may be sent. The cron is doubled in UTC so\n * one firing always lands here regardless of daylight saving; this guard\n * discards the other. Widen to [8, 9] on hosts whose schedulers run late.\n */\nconst REPORT_HOURS = [8];\n\n/**\n * Weekends off by default: NYMEX does not trade Sat/Sun, so a weekend report\n * would repeat Friday's settlements verbatim. Flip to true for all 7 days.\n */\nconst INCLUDE_WEEKENDS = false;\n\n/** Read an env var on either Deno (Val Town) or Node, without assuming a runtime. */\nfunction envFlag(name: string): boolean {\n try {\n // @ts-ignore - Deno is present on Val Town, absent on Node.\n if (typeof Deno !== \"undefined\") return !!Deno.env.get(name);\n } catch { /* Deno.env may be permission-gated; fall through */ }\n // @ts-ignore - process is present on Node, absent on Deno.\n return typeof process !== \"undefined\" && !!process?.env?.[name];\n}\n\n/**\n * True only inside the report window.\n *\n * Set an environment variable FORCE_SEND=1 to make a manual Run send\n * immediately whatever the clock says, then delete the variable again.\n * That is the supported way to test without touching this file.\n */\nfunction isReportTime(t = easternNow()): boolean {\n if (envFlag(\"FORCE_SEND\")) return true;\n if (!REPORT_HOURS.includes(t.hour)) return false;\n if (INCLUDE_WEEKENDS) return true;\n return ![\"Sat\", \"Sun\"].includes(t.weekday);\n}\n\n// --------------------------------------------------- exchange calendar math\n\n/** Easter Sunday (Gregorian, Meeus/Jones/Butcher) -> [monthIdx0, day]. */\nfunction easter(year: number): [number, number] {\n const a = year % 19, b = Math.floor(year / 100), c = year % 100;\n const d = Math.floor(b / 4), e = b % 4;\n const f = Math.floor((b + 8) / 25), g = Math.floor((b - f + 1) / 3);\n const h = (19 * a + b - d - g + 15) % 30;\n const i = Math.floor(c / 4), k = c % 4;\n const l = (32 + 2 * e + 2 * i - h - k) % 7;\n const m = Math.floor((a + 11 * h + 22 * l) / 451);\n const month = Math.floor((h + l - 7 * m + 114) / 31);\n const day = ((h + l - 7 * m + 114) % 31) + 1;\n return [month - 1, day];\n}\n\n/** Date of the nth given weekday in a month (n = 1..5). */\nfunction nthWeekday(\n year: number,\n monthIdx0: number,\n weekday: number,\n n: number,\n): number {\n const first = new Date(Date.UTC(year, monthIdx0, 1)).getUTCDay();\n return 1 + ((weekday - first + 7) % 7) + (n - 1) * 7;\n}\n\n/** Holiday closures relevant to NYMEX floor/settlement scheduling, as YYYY-MM-DD. */\nfunction holidaySet(year: number): Set {\n const iso = (m: number, d: number) =>\n `${year}-${String(m + 1).padStart(2, \"0\")}-${String(d).padStart(2, \"0\")}`;\n const shiftIfWeekend = (m: number, d: number): [number, number] => {\n const wd = new Date(Date.UTC(year, m, d)).getUTCDay();\n if (wd === 6) return [m, d - 1]; // Sat -> observed Fri\n if (wd === 0) return [m, d + 1]; // Sun -> observed Mon\n return [m, d];\n };\n const out = new Set();\n for (\n const [m, d] of [[0, 1], [5, 19], [6, 4], [11, 25]] as [number, number][]\n ) {\n const [om, od] = shiftIfWeekend(m, d);\n out.add(iso(om, od));\n }\n out.add(iso(0, nthWeekday(year, 0, 1, 3))); // MLK Day, 3rd Mon Jan\n out.add(iso(1, nthWeekday(year, 1, 1, 3))); // Presidents Day, 3rd Mon Feb\n out.add(\n iso(\n 4,\n nthWeekday(year, 4, 1, 5) > new Date(Date.UTC(year, 5, 0)).getUTCDate()\n ? nthWeekday(year, 4, 1, 4)\n : nthWeekday(year, 4, 1, 5),\n ),\n ); // Memorial Day, last Mon May\n out.add(iso(8, nthWeekday(year, 8, 1, 1))); // Labor Day, 1st Mon Sep\n out.add(iso(10, nthWeekday(year, 10, 4, 4))); // Thanksgiving, 4th Thu Nov\n const [em, ed] = easter(year); // Good Friday = Easter - 2\n const gf = new Date(Date.UTC(year, em, ed - 2));\n out.add(iso(gf.getUTCMonth(), gf.getUTCDate()));\n return out;\n}\n\nfunction isBusinessDay(dt: Date, hols: Set): boolean {\n const wd = dt.getUTCDay();\n if (wd === 0 || wd === 6) return false;\n const key = `${dt.getUTCFullYear()}-${\n String(dt.getUTCMonth() + 1).padStart(2, \"0\")\n }-${String(dt.getUTCDate()).padStart(2, \"0\")}`;\n return !hols.has(key);\n}\n\n/**\n * NG termination: trading stops 3 business days before the first day of the\n * delivery month. Returns that last trade date.\n */\nfunction lastTradeDate(year: number, monthIdx0: number): Date {\n const hols = new Set([...holidaySet(year), ...holidaySet(year - 1)]);\n const dt = new Date(Date.UTC(year, monthIdx0, 1));\n let stepped = 0;\n while (stepped < 3) {\n dt.setUTCDate(dt.getUTCDate() - 1);\n if (isBusinessDay(dt, hols)) stepped++;\n }\n return dt;\n}\n\n/** The nearest NG contract that has not yet stopped trading, as of Eastern today. */\nfunction promptMonth(t = easternNow()): { year: number; monthIdx0: number } {\n let year = t.y, monthIdx0 = t.m - 1;\n const today = Date.UTC(t.y, t.m - 1, t.d);\n for (let i = 0; i < 4; i++) {\n if (today <= lastTradeDate(year, monthIdx0).getTime()) {\n return { year, monthIdx0 };\n }\n monthIdx0++;\n if (monthIdx0 > 11) {\n monthIdx0 = 0;\n year++;\n }\n }\n return { year, monthIdx0 };\n}\n\nexport interface Contract {\n n: number;\n symbol: string; // Yahoo symbol, e.g. NGV26.NYM\n ticker: string; // SEG-style ticker, e.g. NGV2026\n year: number;\n monthIdx0: number;\n label: string; // \"Oct 2026\"\n monthName: string; // \"October\"\n}\n\n/** Build the rolling 48-month curve starting at the prompt month. */\nfunction buildCurve(len = CURVE_LENGTH): Contract[] {\n const { year, monthIdx0 } = promptMonth();\n const out: Contract[] = [];\n for (let i = 0; i < len; i++) {\n const m = (monthIdx0 + i) % 12;\n const y = year + Math.floor((monthIdx0 + i) / 12);\n out.push({\n n: i + 1,\n symbol: `NG${MONTH_CODES[m]}${String(y).slice(-2)}.NYM`,\n ticker: `NG${MONTH_CODES[m]}${y}`,\n year: y,\n monthIdx0: m,\n label: `${MONTH_ABBR[m]} ${y}`,\n monthName: MONTH_NAMES[m],\n });\n }\n return out;\n}\n\n// ------------------------------------------------------------- data fetching\n\nexport interface Quote extends Contract {\n price: number | null;\n prevClose: number | null;\n change: number | null;\n pct: number | null;\n stale: boolean; // no bar for today yet; showing the prior settlement\n error?: string;\n}\n\nconst UA =\n \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 \" +\n \"(KHTML, like Gecko) Chrome/126.0 Safari/537.36\";\n\nconst sleep = (ms: number) => new Promise((r) => setTimeout(r, ms));\n\n/**\n * One symbol, with retry + host failover. Never throws.\n *\n * IMPORTANT — why this reads the daily bar series and ignores\n * meta.regularMarketPrice / meta.chartPreviousClose:\n *\n * The deferred months on this curve barely trade. Yahoo's\n * regularMarketPrice for them is the last *executed trade*, which can be\n * months old (NGQ30 was showing an April print in August), while\n * chartPreviousClose is the close preceding the whole requested range,\n * not the prior session. Using either produces badly wrong prices and\n * changes for anything past the first year or so.\n *\n * The daily bar series, by contrast, is marked to settlement every\n * session for every contract whether or not it trades. Last bar vs the\n * bar before it is the settlement-to-settlement move a supply desk\n * actually quotes, and it reconciles with Barchart and CME.\n */\nasync function fetchQuote(c: Contract): Promise {\n const hosts = [\"query1.finance.yahoo.com\", \"query2.finance.yahoo.com\"];\n let lastErr = \"\";\n\n for (let attempt = 0; attempt < 3; attempt++) {\n const host = hosts[attempt % hosts.length];\n const url =\n `https://${host}/v8/finance/chart/${encodeURIComponent(c.symbol)}` +\n `?range=1mo&interval=1d`;\n try {\n const res = await fetch(url, {\n headers: { \"User-Agent\": UA, \"Accept\": \"application/json\" },\n signal: AbortSignal.timeout(15_000),\n });\n if (!res.ok) {\n lastErr = `HTTP ${res.status}`;\n await sleep(400 * (attempt + 1));\n continue;\n }\n\n const json = await res.json();\n const result = json?.chart?.result?.[0];\n if (!result) {\n lastErr = json?.chart?.error?.description ?? \"no result\";\n await sleep(400);\n continue;\n }\n\n const stamps: number[] = result.timestamp ?? [];\n const closes: (number | null)[] = result.indicators?.quote?.[0]?.close ??\n [];\n\n // Settlement bars, oldest to newest, with the empty ones dropped.\n const bars = stamps\n .map((t, i) => ({ t, c: closes[i] }))\n .filter((b): b is { t: number; c: number } => typeof b.c === \"number\");\n\n if (bars.length === 0) {\n lastErr = \"no settlement bars\";\n await sleep(400);\n continue;\n }\n\n const last = bars.at(-1)!;\n const prior = bars.at(-2) ?? null;\n\n const price = last.c;\n const prevClose = prior ? prior.c : null;\n const change = prevClose === null ? null : price - prevClose;\n const pct = prevClose ? (change! / prevClose) * 100 : null;\n\n // Did this contract print in the current Eastern session?\n const barDay = new Intl.DateTimeFormat(\"en-CA\", {\n timeZone: \"America/New_York\",\n year: \"numeric\",\n month: \"2-digit\",\n day: \"2-digit\",\n }).format(new Date(last.t * 1000));\n const t = easternNow();\n const today = `${t.y}-${String(t.m).padStart(2, \"0\")}-${\n String(t.d).padStart(2, \"0\")\n }`;\n const stale = barDay !== today;\n\n return { ...c, price, prevClose, change, pct, stale };\n } catch (e) {\n lastErr = e instanceof Error ? e.message : String(e);\n await sleep(500 * (attempt + 1));\n }\n }\n return {\n ...c,\n price: null,\n prevClose: null,\n change: null,\n pct: null,\n stale: false,\n error: lastErr,\n };\n}\n\n/** Fetch the whole curve in polite batches so Yahoo does not rate-limit us. */\nasync function fetchCurve(contracts: Contract[], batch = 8): Promise {\n const out: Quote[] = [];\n for (let i = 0; i < contracts.length; i += batch) {\n const slice = contracts.slice(i, i + batch);\n out.push(...await Promise.all(slice.map(fetchQuote)));\n if (i + batch < contracts.length) await sleep(250);\n }\n return out;\n}\n\n// ------------------------------------------------------------------- strips\n\nexport interface Strip {\n name: string;\n note: string;\n avg: number | null;\n chg: number | null;\n}\n\nfunction averageOf(qs: Quote[]): { avg: number | null; chg: number | null } {\n const priced = qs.filter((q) => q.price !== null);\n if (priced.length === 0 || priced.length < qs.length * 0.6) {\n return { avg: null, chg: null };\n }\n const avg = priced.reduce((s, q) => s + q.price!, 0) / priced.length;\n const withChg = priced.filter((q) => q.change !== null);\n const chg = withChg.length\n ? withChg.reduce((s, q) => s + q.change!, 0) / withChg.length\n : null;\n return { avg, chg };\n}\n\n/** The summary strips a supply desk actually looks at each morning. */\nfunction buildStrips(qs: Quote[]): Strip[] {\n const strips: Strip[] = [];\n const at = (y: number, m: number) =>\n qs.find((q) => q.year === y && q.monthIdx0 === m);\n const range = (from: number, count: number) => qs.slice(from, from + count);\n\n strips.push({\n name: \"Prompt Month\",\n note: qs[0].label,\n ...averageOf(range(0, 1)),\n });\n strips.push({\n name: \"12-Month Strip\",\n note: `${qs[0].label} – ${qs[11].label}`,\n ...averageOf(range(0, 12)),\n });\n\n // Next full winter (Nov-Mar) and next full summer (Apr-Oct).\n const seasonal = (months: number[], startYear: number, label: string) => {\n const picked: Quote[] = [];\n let y = startYear;\n for (let i = 0; i < months.length; i++) {\n if (i > 0 && months[i] < months[i - 1]) y++;\n const q = at(y, months[i]);\n if (q) picked.push(q);\n }\n if (picked.length === months.length) {\n strips.push({\n name: label,\n note: `${picked[0].label} – ${picked.at(-1)!.label}`,\n ...averageOf(picked),\n });\n }\n };\n const first = qs[0];\n const winterStart = first.monthIdx0 <= 10 ? first.year : first.year + 1;\n seasonal(\n [10, 11, 0, 1, 2],\n winterStart,\n `Winter ${String(winterStart).slice(-2)}/${\n String(winterStart + 1).slice(-2)\n }`,\n );\n const summerYear = first.monthIdx0 <= 3 ? first.year : first.year + 1;\n seasonal([3, 4, 5, 6, 7, 8, 9], summerYear, `Summer ${summerYear}`);\n\n // Every calendar year the curve covers in full.\n const years = [...new Set(qs.map((q) => q.year))].sort();\n for (const y of years) {\n const yearMonths = qs.filter((q) => q.year === y);\n if (yearMonths.length === 12) {\n strips.push({\n name: `Cal ${y}`,\n note: \"12-month average\",\n ...averageOf(yearMonths),\n });\n }\n }\n return strips;\n}\n\n// -------------------------------------------------------------- html report\n\nconst money = (v: number | null, dp = 3) => v === null ? \"—\" : v.toFixed(dp);\n/** Anything that rounds to zero at the shown precision is \"unchanged\", not \"-0.000\". */\nconst isFlat = (v: number | null, dp = 3) =>\n v !== null && Math.abs(v) < 0.5 * Math.pow(10, -dp);\nconst signed = (v: number | null, dp = 3) => {\n if (v === null) return \"—\";\n if (isFlat(v, dp)) return (0).toFixed(dp);\n return `${v > 0 ? \"+\" : \"−\"}${Math.abs(v).toFixed(dp)}`;\n};\nconst toneOf = (v: number | null, dp = 3) =>\n v === null || isFlat(v, dp) ? C.muted : v > 0 ? C.up : C.down;\n\nfunction stripTile(s: Strip): string {\n return `\n \n \n \n

${s.name}

${s.note}

\n $${money(s.avg)}\n

\n ${signed(s.chg)} vs prior\n

\n `;\n}\n\nfunction curveRow(q: Quote, shade: boolean): string {\n const bg = shade ? \"#F7FAFD\" : \"#FFFFFF\";\n const cell =\n `padding:7px 10px;font-family:Arial,Helvetica,sans-serif;font-size:13px;border-bottom:1px solid #EDF2F7;`;\n const flag = q.error\n ? ` no data`\n : q.stale\n ? ` settle`\n : \"\";\n return `\n \n ${q.n}\n ${q.ticker}\n ${q.label}${flag}\n ${\n q.price === null ? \"—\" : \"$\" + money(q.price)\n }\n ${signed(q.change)}\n ${\n q.pct === null ? \"—\" : signed(q.pct, 2) + \"%\"\n }\n `;\n}\n\nexport function renderReport(\n qs: Quote[],\n strips: Strip[],\n stamp: string,\n sampleNote = \"\",\n): string {\n const th =\n `padding:8px 10px;font-family:Arial,Helvetica,sans-serif;font-size:10px;font-weight:bold;` +\n `letter-spacing:.7px;text-transform:uppercase;color:#FFFFFF;background:${C.blue};`;\n\n // strips laid out two per row\n let tiles = \"\";\n for (let i = 0; i < strips.length; i += 2) {\n tiles += `${stripTile(strips[i])}${\n strips[i + 1]\n ? stripTile(strips[i + 1])\n : ''\n }`;\n }\n\n const priced = qs.filter((q) => q.change !== null && q.price !== null);\n const sorted = [...priced].sort((a, b) =>\n Math.abs(b.change!) - Math.abs(a.change!)\n );\n const movers = sorted.slice(0, 3)\n .map((q) =>\n `${q.label} ${signed(q.change)}`\n )\n .join(\" · \");\n\n const missing = qs.filter((q) => q.price === null);\n const warn = missing.length\n ? `\n ${missing.length} contract${\n missing.length > 1 ? \"s\" : \"\"\n } did not return a price:\n ${missing.map((m) => m.ticker).join(\", \")}\n `\n : \"\";\n\n const sample = sampleNote\n ? `${sampleNote}\n `\n : \"\";\n\n let rows = \"\", shade = false, lastYear = qs[0]?.year;\n for (const q of qs) {\n if (q.year !== lastYear) {\n shade = !shade;\n lastYear = q.year;\n }\n rows += curveRow(q, shade);\n }\n\n return `\n\nHenry Hub Forward Curve\n\n\n\n

\n \n\n \n\n \n\n ${\n movers\n ? ``\n : \"\"\n }\n\n \n\n \n\n

Henry Hub Forward Curve

NYMEX Natural Gas (NG) · 48-month strip · ${stamp}

\n ${sample}${warn}

\n ${tiles}

\n Biggest moves
\n ${movers}\n

\n \n \n \n \n \n \n \n \n \n ${rows}\n

#	Ticker	Contract	Last	Chg	%

\n Prices in $/MMBtu. Change is versus the prior session's close. Contracts marked\n settle did not trade in the latest session and show the last settlement.\n The 48-month window rolls forward automatically as each prompt month expires.
\n Source: Yahoo Finance delayed NYMEX data. Automated daily report — Sunlight Energy Group.\n

\n`;\n}\n\n/** Plain-text fallback for clients that will not render HTML. */\nfunction renderText(qs: Quote[], strips: Strip[], stamp: string): string {\n const lines = [\n `HENRY HUB FORWARD CURVE — ${stamp}`,\n `NYMEX Natural Gas (NG), $/MMBtu, 48-month strip`,\n \"\",\n \"SUMMARY\",\n ...strips.map((s) =>\n ` ${s.name.padEnd(18)} $${money(s.avg)} (${signed(s.chg)}) ${s.note}`\n ),\n \"\",\n \"FULL CURVE\",\n ` ${\"#\".padStart(3)} ${\"TICKER\".padEnd(9)} ${\"CONTRACT\".padEnd(16)} ${\n \"LAST\".padStart(8)\n } ${\"CHG\".padStart(8)} ${\"%\".padStart(8)}`,\n ...qs.map((q) =>\n ` ${String(q.n).padStart(3)} ${q.ticker.padEnd(9)} ${\n (q.monthName + \" \" + q.year).padEnd(16)\n }` +\n ` ${money(q.price).padStart(8)} ${signed(q.change).padStart(8)}` +\n ` ${(q.pct === null ? \"—\" : signed(q.pct, 2) + \"%\").padStart(8)}`\n ),\n \"\",\n \"Source: Yahoo Finance delayed NYMEX data. Automated report — Sunlight Energy Group.\",\n ];\n return lines.join(\"\\n\");\n}\n\n// ------------------------------------------------------------------ handler\n\nexport default async function () {\n const t = easternNow();\n\n // The cron fires at both 12:30 and 13:30 UTC so that one of them is always\n // 8:30 AM Eastern. This guard discards the other, and skips weekends.\n if (!isReportTime(t)) return;\n\n const stamp = `${MONTH_NAMES[t.m - 1]} ${t.d}, ${t.y}`;\n\n try {\n const contracts = buildCurve();\n const quotes = await fetchCurve(contracts);\n const strips = buildStrips(quotes);\n\n const failed = quotes.filter((q) => q.price === null).length;\n const subject = failed > 6\n ? `⚠ Henry Hub Curve — ${stamp} (${failed} contracts missing)`\n : `Henry Hub Forward Curve — ${stamp} · Prompt $${\n money(quotes[0].price)\n }`;\n\n await email({\n subject,\n html: renderReport(quotes, strips, stamp),\n text: renderText(quotes, strips, stamp),\n ...(RECIPIENTS.length ? { to: RECIPIENTS } : {}),\n });\n } catch (err) {\n await email({\n subject: `⚠ Henry Hub Curve report FAILED — ${stamp}`,\n text: `The daily gas curve report could not be generated.\\n\\n` +\n `${err instanceof Error ? err.stack ?? err.message : String(err)}\\n\\n` +\n `No prices were sent. The job will try again tomorrow at 8:30 AM ET.`,\n });\n }\n}\n\n// Exported so the pieces can be unit-tested or reused elsewhere.\nexport {\n buildCurve,\n buildStrips,\n easternNow,\n fetchCurve,\n isReportTime,\n lastTradeDate,\n promptMonth,\n renderText,\n};","interval","createdAt",["D",1787344836153],"branchVersion","branchId","4b4dcd01-dbf0-4c34-ad99-18aeb338c3f8","id","d7a8d46c-479c-441d-9287-52a465463c3a","GasWatch",["D",1787343743683],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","","imageUrl","35194cb7-c848-4ef3-ab41-d4b48dd0dd84","pinnedFileId","pinPreview","pinMigrated","screenshotVersion","likeCount",0,"orgId","01a025fb-f753-772c-88d1-cbe4f2ec3727","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_95":94,"_103":99},"org",{"_95":94,"_96":97,"_98":99,"_18":55,"_100":101,"_102":25},"branch",{"_13":84,"_32":85,"_43":42,"_86":44,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":45,"_93":94},"isOwned",9,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","infoseg","handle","displayName","Info SEG","avatar","https://lh3.googleusercontent.com/a/ACg8ocKg80IfTvEvQEkvxdJGsmwSYBze2f2uWGkXuGxGErBA6r2KPg=s96-c","tier","free","canRestrictVals","profileImageUrl","branchName","adoptOrgId",{"_43":44,"_32":45,"_38":149,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":-5,"_57":25,"_58":-5,"_59":-5,"_60":61,"_62":63,"_64":-5,"_65":-5,"_66":-5,"_67":-5,"_68":69,"_70":69,"_71":72,"_73":72,"_74":72,"_75":69,"_76":69,"_77":150,"_79":151,"_81":152,"_83":25},"tree",[144],"files",[144],"counts",{"_133":61,"_134":135,"_136":61,"_137":138,"_139":140},"contents",[125],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_43":126,"_32":28,"_30":31,"_127":-5,"_41":42,"_40":14,"_128":25,"_38":129,"_13":130,"_33":37,"_35":36,"_24":25,"_131":-5,"_27":132},"64c9a8c1-41e4-4365-8283-3e5d9839a151","parentId","latest",["D",1787344836153],6,"label",[28],"pulls","branches",1,"forks","envVars",{"_141":61,"_143":61},"connections",{"_141":61,"_142":61},"count","unfilledCount","emptyCount",{"_43":126,"_32":28,"_30":31,"_127":-5,"_41":42,"_40":14,"_128":25,"_38":145,"_13":130,"_33":37,"_35":36,"_24":25,"_131":-5,"_146":147,"_27":148},["D",1787344836153],"children",[],[28],["D",1787343743683],{"_95":94,"_103":99},{"_95":94,"_96":97,"_98":99,"_18":55,"_100":101,"_102":25},{"_13":84,"_32":85,"_43":42,"_86":44,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":45,"_93":94},"ctx",{"_77":-5,"_122":186,"_187":188,"_189":190,"_191":25,"_192":25,"_193":25,"_194":195,"_196":-5,"_197":-7,"_198":-7,"_199":61,"_200":25,"_201":25,"_202":-5,"_203":25,"_204":25,"_205":25,"_206":-5},"ENV",{"_157":158,"_159":160,"_161":85,"_162":163,"_164":165,"_166":167,"_168":169,"_170":171,"_172":173,"_174":175,"_176":177,"_178":179,"_180":181,"_182":183,"_184":185},"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",true,"preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v7