[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_154":155,"_156":157},"routes/_app.x.$handle.$name",{"_95":94,"_32":45,"_103":85,"_27":104,"_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":121,"_122":-5,"_123":-5,"_124":125},"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",4,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":34,"_35":37,"_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","d23ef674-1508-11f1-a117-42dde27851f2","name","fileType","http","content","type PricePoint = {\n millisUTC: string;\n price: string;\n};\n\ntype HourlyAverage = {\n hour: Date;\n price: number; // cents/kWh\n};\n\nexport default async function (req: Request): Promise {\n const [historicalPrices, dayAheadPrices] = await Promise.all([\n fetchHistoricalHourly(),\n fetchDayAhead(),\n ]);\n\n const allPrices = deduplicateAndMerge(historicalPrices, dayAheadPrices);\n const ical = generateICal(allPrices, 0.1); // $0.001 = 0.1 cents\n\n return new Response(ical, {\n headers: {\n \"Content-Type\": \"text/calendar; charset=utf-8\",\n \"Content-Disposition\": 'attachment; filename=\"comed-prices.ics\"',\n },\n });\n}\n\nasync function fetchHistoricalHourly(): Promise {\n const res = await fetch(\n \"https://hourlypricing.comed.com/api?type=5minutefeed\",\n );\n const data: PricePoint[] = await res.json();\n return calculateHourlyAverages(data);\n}\n\nasync function fetchDayAhead(): Promise {\n const hasData = await fetch(\n \"https://hourlypricing.comed.com/rrtp/ServletFeed?type=hasdaynexttomorrow\",\n ).then((r) => r.text());\n\n if (hasData.trim() !== \"true\") return [];\n\n const raw = await fetch(\n \"https://hourlypricing.comed.com/rrtp/ServletFeed?type=daynexttomorrow\",\n ).then((r) => r.text());\n\n return parseDayAhead(raw);\n}\n\nfunction parseDayAhead(raw: string): HourlyAverage[] {\n const results: HourlyAverage[] = [];\n const pattern =\n /Date\\.UTC\$(\\d+),(\\d+),(\\d+),(\\d+),\\d+,\\d+\$\\s*,\\s*([-\\d.]+)/g;\n let match;\n\n while ((match = pattern.exec(raw)) !== null) {\n const [, year, month, day, hour, price] = match;\n results.push({\n hour: new Date(\n Date.UTC(\n parseInt(year),\n parseInt(month),\n parseInt(day),\n parseInt(hour),\n ),\n ),\n price: Math.round(parseFloat(price) * 100) / 100,\n });\n }\n\n return results;\n}\n\nfunction calculateHourlyAverages(data: PricePoint[]): HourlyAverage[] {\n const buckets = new Map();\n\n for (const point of data) {\n const date = new Date(parseInt(point.millisUTC));\n const hourKey = [\n date.getUTCFullYear(),\n date.getUTCMonth(),\n date.getUTCDate(),\n date.getUTCHours(),\n ].join(\"-\");\n\n if (!buckets.has(hourKey)) buckets.set(hourKey, []);\n buckets.get(hourKey)!.push(parseFloat(point.price));\n }\n\n const averages: HourlyAverage[] = [];\n for (const [key, prices] of buckets) {\n const [year, month, day, hour] = key.split(\"-\").map(Number);\n const avg = prices.reduce((a, b) => a + b, 0) / prices.length;\n averages.push({\n hour: new Date(Date.UTC(year, month, day, hour)),\n price: Math.round(avg * 100) / 100,\n });\n }\n\n averages.sort((a, b) => a.hour.getTime() - b.hour.getTime());\n return averages;\n}\n\nfunction deduplicateAndMerge(\n historical: HourlyAverage[],\n dayAhead: HourlyAverage[],\n): HourlyAverage[] {\n const byTime = new Map();\n\n // Historical first, day-ahead overwrites any overlap\n for (const h of historical) byTime.set(h.hour.getTime(), h);\n for (const d of dayAhead) byTime.set(d.hour.getTime(), d);\n\n return Array.from(byTime.values()).sort(\n (a, b) => a.hour.getTime() - b.hour.getTime(),\n );\n}\n\nfunction generateICal(\n hourlyPrices: HourlyAverage[],\n thresholdCents: number,\n): string {\n const events: string[] = [];\n\n for (let i = 1; i < hourlyPrices.length; i++) {\n const prev = hourlyPrices[i - 1];\n const curr = hourlyPrices[i];\n const delta = curr.price - prev.price;\n\n if (Math.abs(delta) < thresholdCents) continue;\n\n const direction = delta > 0 ? \"\\u2191\" : \"\\u2193\";\n const sign = delta > 0 ? \"+\" : \"\";\n const start = formatDateUTC(curr.hour);\n const end = formatDateUTC(new Date(curr.hour.getTime() + 3600000));\n const uid = `comed-${start}@hourlypricing`;\n\n events.push(\n [\n \"BEGIN:VEVENT\",\n `DTSTART:${start}`,\n `DTEND:${end}`,\n `SUMMARY:${direction} ${curr.price.toFixed(1)}c/kWh (${sign}${\n delta.toFixed(1)\n }c)`,\n `DESCRIPTION:ComEd price ${delta > 0 ? \"rose\" : \"fell\"} from ${\n prev.price.toFixed(1)\n }c to ${curr.price.toFixed(1)}c per kWh`,\n `UID:${uid}`,\n \"END:VEVENT\",\n ].join(\"\\r\\n\"),\n );\n }\n\n return [\n \"BEGIN:VCALENDAR\",\n \"VERSION:2.0\",\n \"PRODID:-//ComEd Hourly Pricing//joshbeckman.org\",\n \"X-WR-CALNAME:ComEd Electricity Prices\",\n \"X-WR-TIMEZONE:America/Chicago\",\n ...events,\n \"END:VCALENDAR\",\n \"\",\n ].join(\"\\r\\n\");\n}\n\nfunction formatDateUTC(date: Date): string {\n return date\n .toISOString()\n .replace(/[-:]/g, \"\")\n .replace(/\\.\\d{3}/, \"\");\n}","type PricePoint = {\n millisUTC: string;\n price: string;\n};\n\ntype HourlyAverage = {\n hour: Date;\n price: number; // cents/kWh\n};\n\nexport default async function(req: Request): Promise {\n const [historicalPrices, dayAheadPrices] = await Promise.all([\n fetchHistoricalHourly(),\n fetchDayAhead(),\n ]);\n\n const allPrices = deduplicateAndMerge(historicalPrices, dayAheadPrices);\n const ical = generateICal(allPrices, 0.1); // $0.001 = 0.1 cents\n\n return new Response(ical, {\n headers: {\n \"Content-Type\": \"text/calendar; charset=utf-8\",\n \"Content-Disposition\": 'attachment; filename=\"comed-prices.ics\"',\n },\n });\n}\n\nasync function fetchHistoricalHourly(): Promise {\n const res = await fetch(\n \"https://hourlypricing.comed.com/api?type=5minutefeed\",\n );\n const data: PricePoint[] = await res.json();\n return calculateHourlyAverages(data);\n}\n\nasync function fetchDayAhead(): Promise {\n const hasData = await fetch(\n \"https://hourlypricing.comed.com/rrtp/ServletFeed?type=hasdaynexttomorrow\",\n ).then((r) => r.text());\n\n if (hasData.trim() !== \"true\") return [];\n\n const raw = await fetch(\n \"https://hourlypricing.comed.com/rrtp/ServletFeed?type=daynexttomorrow\",\n ).then((r) => r.text());\n\n return parseDayAhead(raw);\n}\n\nfunction parseDayAhead(raw: string): HourlyAverage[] {\n const results: HourlyAverage[] = [];\n const pattern = /Date\\.UTC\$(\\d+),(\\d+),(\\d+),(\\d+),\\d+,\\d+\$\\s*,\\s*([-\\d.]+)/g;\n let match;\n\n while ((match = pattern.exec(raw)) !== null) {\n const [, year, month, day, hour, price] = match;\n results.push({\n hour: new Date(\n Date.UTC(\n parseInt(year),\n parseInt(month),\n parseInt(day),\n parseInt(hour),\n ),\n ),\n price: Math.round(parseFloat(price) * 100) / 100,\n });\n }\n\n return results;\n}\n\nfunction calculateHourlyAverages(data: PricePoint[]): HourlyAverage[] {\n const buckets = new Map();\n\n for (const point of data) {\n const date = new Date(parseInt(point.millisUTC));\n const hourKey = [\n date.getUTCFullYear(),\n date.getUTCMonth(),\n date.getUTCDate(),\n date.getUTCHours(),\n ].join(\"-\");\n\n if (!buckets.has(hourKey)) buckets.set(hourKey, []);\n buckets.get(hourKey)!.push(parseFloat(point.price));\n }\n\n const averages: HourlyAverage[] = [];\n for (const [key, prices] of buckets) {\n const [year, month, day, hour] = key.split(\"-\").map(Number);\n const avg = prices.reduce((a, b) => a + b, 0) / prices.length;\n averages.push({\n hour: new Date(Date.UTC(year, month, day, hour)),\n price: Math.round(avg * 100) / 100,\n });\n }\n\n averages.sort((a, b) => a.hour.getTime() - b.hour.getTime());\n return averages;\n}\n\nfunction deduplicateAndMerge(\n historical: HourlyAverage[],\n dayAhead: HourlyAverage[],\n): HourlyAverage[] {\n const byTime = new Map();\n\n // Historical first, day-ahead overwrites any overlap\n for (const h of historical) byTime.set(h.hour.getTime(), h);\n for (const d of dayAhead) byTime.set(d.hour.getTime(), d);\n\n return Array.from(byTime.values()).sort(\n (a, b) => a.hour.getTime() - b.hour.getTime(),\n );\n}\n\nfunction generateICal(\n hourlyPrices: HourlyAverage[],\n thresholdCents: number,\n): string {\n const events: string[] = [];\n\n for (let i = 1; i < hourlyPrices.length; i++) {\n const prev = hourlyPrices[i - 1];\n const curr = hourlyPrices[i];\n const delta = curr.price - prev.price;\n\n if (Math.abs(delta) < thresholdCents) continue;\n\n const direction = delta > 0 ? \"\\u2191\" : \"\\u2193\";\n const sign = delta > 0 ? \"+\" : \"\";\n const fmt = (n: number) => (Object.is(n, -0) ? \"0.0\" : n.toFixed(1));\n const start = formatDateUTC(curr.hour);\n const end = formatDateUTC(new Date(curr.hour.getTime() + 3600000));\n const uid = `comed-${start}@hourlypricing`;\n\n events.push(\n [\n \"BEGIN:VEVENT\",\n `DTSTART:${start}`,\n `DTEND:${end}`,\n `SUMMARY:${direction} ${fmt(curr.price)}c/kWh (${sign}${fmt(delta)}c)`,\n `DESCRIPTION:ComEd price ${delta > 0 ? \"rose\" : \"fell\"} from ${fmt(prev.price)}c to ${fmt(curr.price)}c per kWh`,\n `UID:${uid}`,\n \"END:VEVENT\",\n ].join(\"\\r\\n\"),\n );\n }\n\n return [\n \"BEGIN:VCALENDAR\",\n \"VERSION:2.0\",\n \"PRODID:-//ComEd Hourly Pricing//joshbeckman.org\",\n \"X-WR-CALNAME:ComEd Electricity Prices\",\n \"X-WR-TIMEZONE:America/Chicago\",\n ...events,\n \"END:VCALENDAR\",\n \"\",\n ].join(\"\\r\\n\");\n}\n\nfunction formatDateUTC(date: Date): string {\n return date\n .toISOString()\n .replace(/[-:]/g, \"\")\n .replace(/\\.\\d{3}/, \"\");","createdAt",["D",1772326630451],"branchVersion","branchId","d23c194a-1508-11f1-a117-42dde27851f2","id","d23ba47e-1508-11f1-a117-42dde27851f2","comed-hourly-pricing-calendar",["D",1772326305620],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Subscribe to the hourly price changes of ComEd electricity","imageUrl","f8d90ec1-81be-4efc-b861-a032f3f5b85f","pinnedFileId","pinPreview","pinMigrated","screenshotVersion","likeCount",1,"orgId","b1ec36cc-9d04-4938-872f-34bf39599d6a","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_95":94,"_102":98},"org",{"_95":94,"_96":-5,"_97":98,"_18":55,"_99":100,"_101":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",16,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","joshbeckman","handle","displayName","avatar","https://img.clerk.com/eyJ0eXBlIjoiZGVmYXVsdCIsImlpZCI6Imluc18yTm10cGhQUklwU0tqZHNiOHNnNGd2ZjJURFUiLCJyaWQiOiJ1c2VyXzJTZm1HaHJGdDFmQ2s5ME05RW9lT1JGbHZPYyIsImluaXRpYWxzIjoiSkIifQ","tier","pro","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_43":44,"_32":45,"_38":150,"_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":151,"_79":152,"_81":153,"_83":25},"tree",[145],"files",[145],"counts",{"_134":135,"_136":61,"_137":135,"_138":139,"_140":141},"contents",[126],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles",true,"grants","orgs","customDomains",{},{"_43":127,"_32":28,"_30":31,"_128":-5,"_41":42,"_40":14,"_129":25,"_38":130,"_13":131,"_33":34,"_35":37,"_24":25,"_132":-5,"_27":133},"93da76a0-1509-11f1-947c-42dde27851f2","parentId","latest",["D",1772326630451],3,"label",[28],"pulls",0,"branches","forks","envVars",{"_142":135,"_144":135},"connections",{"_142":135,"_143":135},"count","unfilledCount","emptyCount",{"_43":127,"_32":28,"_30":31,"_128":-5,"_41":42,"_40":14,"_129":25,"_38":146,"_13":131,"_33":34,"_35":37,"_24":25,"_132":-5,"_147":148,"_27":149},["D",1772326630451],"children",[],[28],["D",1772326305620],{"_95":94,"_102":98},{"_95":94,"_96":-5,"_97":98,"_18":55,"_99":100,"_101":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,"_123":187,"_188":189,"_190":191,"_192":25,"_193":25,"_194":25,"_195":121,"_196":-5,"_197":-7,"_198":-7,"_199":135,"_200":25,"_201":25,"_202":-5,"_203":25,"_204":25,"_205":25,"_206":-5},"ENV",{"_158":159,"_160":161,"_162":85,"_163":164,"_165":166,"_167":168,"_169":170,"_171":172,"_173":174,"_175":176,"_177":178,"_179":180,"_181":182,"_183":184,"_185":186},"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"]

Diff · v4