feat: add cron and manual trigger

bun.lock

@@ -1,10 +1,13 @@
 {
   "lockfileVersion": 1,
+  "configVersion": 0,
   "workspaces": {
     "": {
       "name": "daily-digest",
       "dependencies": {
         "dayjs": "^1.11.20",
+        "eventsource": "^4.1.0",
+        "node-cron": "^4.6.0",
       },
       "devDependencies": {
         "@types/bun": "latest",
@@ -23,6 +26,12 @@
 
     "dayjs": ["dayjs@1.11.20", "", {}, "sha512-YbwwqR/uYpeoP4pu043q+LTDLFBLApUP6VxRihdfNTqu4ubqMlGDLd6ErXhEgsyvY0K6nCs7nggYumAN+9uEuQ=="],
 
+    "eventsource": ["eventsource@4.1.0", "", { "dependencies": { "eventsource-parser": "^3.0.1" } }, "sha512-2GuF51iuHX6A9xdTccMTsNb7VO0lHZihApxhvQzJB5A03DvHDd2FQepodbMaztPBmBcE/ox7o2gqaxGhYB9LhQ=="],
+
+    "eventsource-parser": ["eventsource-parser@3.1.0", "", {}, "sha512-kJezFj9YFAMLeORyi7aCLxLbD5/qWMQnoMVlVPyHIll7lgRJCc3JVln9Vgl9nwQi0YkMnhdGTMNn7CkRRAptMg=="],
+
+    "node-cron": ["node-cron@4.6.0", "", {}, "sha512-Si/bzYiKRHOB8/a99T2+SDGN582ONDMSTlJr5oCkT6GtnqPjZ2s10eoQRYkW9ZHwjVxONL+W8Fb+qR0AHMQsdg=="],
+
     "typescript": ["typescript@5.9.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw=="],
 
     "undici-types": ["undici-types@7.24.6", "", {}, "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg=="],

fx.ts

@@ -0,0 +1,124 @@
+import { $ } from "bun"
+
+const API =
+"https://api.frankfurter.app/latest?from=USD&to=INR"
+
+export async function getUSD() {
+  const res = await fetch(API)
+
+  if (!res.ok) {
+    throw new Error(`Exchange API failed: ${res.status}`)
+  }
+
+  const data = await res.json()
+
+  const rate = (data as { rates: { INR: number } }).rates.INR
+
+  if (typeof rate !== "number") {
+    throw new Error("Invalid exchange rate")
+  }
+
+  const helions = (rate / 100).toFixed(2)
+
+  return `**📈 Exchange Rate**
+$1 = ₹${rate.toFixed(2)} = ⚙${helions}
+
+`
+}
+
+
+export async function getUsage() {
+  //
+  // CPU LOAD
+  //
+
+  const loadavg = await $`cat /proc/loadavg`.text()
+  const [load1] = loadavg.trim().split(" ")
+
+  //
+  // MEMORY
+  //
+
+  const memRaw = await $`free -b`.text()
+
+  const memLine = memRaw
+  .split("\n")
+  .find((line) => line.startsWith("Mem:"))
+
+  if (!memLine) {
+    throw new Error("Failed to parse memory info")
+  }
+
+  const [
+    ,
+    totalMem,
+    usedMem,
+  ] = memLine.trim().split(/\s+/)
+
+  //
+  // DISK
+  //
+
+  const diskRaw = await $`df -B1 /`.text()
+
+  const diskLine = diskRaw
+  .split("\n")[1]
+
+  if (!diskLine) {
+    throw new Error("Failed to parse disk info")
+  }
+
+  const [
+    ,
+    totalDisk,
+    usedDisk,
+  ] = diskLine.trim().split(/\s+/)
+
+  const temp = await $`vcgencmd measure_temp`.text()
+  const tempData = temp.split("=")?.[1]?.replace("'", "°")
+
+  //
+  // HELPERS
+  //
+
+  function formatBytesIEC(bytes: number) {
+    const units = ["B", "KiB", "MiB", "GiB", "TiB"]
+
+    let i = 0
+    let value = bytes
+
+    while (value >= 1024 && i < units.length - 1) {
+      value /= 1024
+      i++
+    }
+
+    return `${value.toFixed(1)} ${units[i]}`
+  }
+
+  //
+  // OUTPUT
+  //
+
+  return `**💾 Usage**
+• **CPU:** ${load1}
+• **Memory:** ${formatBytesIEC(Number(usedMem))} / ${formatBytesIEC(Number(totalMem))}
+• **Disk:** ${formatBytesIEC(Number(usedDisk))} / ${formatBytesIEC(Number(totalDisk))}
+• **Temperature:** ${tempData}
+`
+}
+
+
+export async function getWeather() {
+  const res = await fetch(`https://wttr.in/Bengaluru?format="%c%C| %f | %h | %m | %w | %p"`)
+  const data = await res.text()
+  const [weather, temp, humidity, moon, winds, preci] = data.replace(/\"/g, '').split("|")
+
+  return `**🌥️ Weather Report**
+• **Weather:** ${weather}
+• **Temperature:** ${temp}
+• **Humidity:** ${humidity}
+• **Moon Phase:** ${moon}
+• **Winds:** ${winds}
+• **Precipitation:** ${preci}
+`
+}

index.ts

@@ -1,6 +1,9 @@
 import { $ } from "bun"
+import cron from "node-cron"
 import dayjs from "dayjs"
 import "dayjs/locale/es"
+import { getUSD, getUsage, getWeather } from "./fx"
+import { EventSource } from "eventsource"
 
 const TOPIC = "daily-digest"
 const TOKEN = process.env.NTFY_TOKEN
@@ -10,130 +13,6 @@ if (!TOKEN) {
   process.exit(1)
 }
 
-const API =
-"https://api.frankfurter.app/latest?from=USD&to=INR"
-
-async function getUSD() {
-  const res = await fetch(API)
-
-  if (!res.ok) {
-    throw new Error(`Exchange API failed: ${res.status}`)
-  }
-
-  const data = await res.json()
-
-  const rate = data.rates.INR
-
-  if (typeof rate !== "number") {
-    throw new Error("Invalid exchange rate")
-  }
-
-  const helions = (rate / 100).toFixed(2)
-
-  return `**📈 Exchange Rate**
-$1 = ₹${rate.toFixed(2)} = ⚙${helions}
-
-`
-}
-
-
-async function getUsage() {
-  //
-  // CPU LOAD
-  //
-
-  const loadavg = await $`cat /proc/loadavg`.text()
-  const [load1] = loadavg.trim().split(" ")
-
-  //
-  // MEMORY
-  //
-
-  const memRaw = await $`free -b`.text()
-
-  const memLine = memRaw
-  .split("\n")
-  .find((line) => line.startsWith("Mem:"))
-
-  if (!memLine) {
-    throw new Error("Failed to parse memory info")
-  }
-
-  const [
-    ,
-    totalMem,
-    usedMem,
-  ] = memLine.trim().split(/\s+/)
-
-  //
-  // DISK
-  //
-
-  const diskRaw = await $`df -B1 /`.text()
-
-  const diskLine = diskRaw
-  .split("\n")[1]
-
-  if (!diskLine) {
-    throw new Error("Failed to parse disk info")
-  }
-
-  const [
-    ,
-    totalDisk,
-    usedDisk,
-  ] = diskLine.trim().split(/\s+/)
-
-  const temp = await $`vcgencmd measure_temp`.text()
-  const tempData = temp.split("=")[1].replace("'", "°")
-
-  //
-  // HELPERS
-  //
-
-  function formatBytesIEC(bytes: number) {
-    const units = ["B", "KiB", "MiB", "GiB", "TiB"]
-
-    let i = 0
-    let value = bytes
-
-    while (value >= 1024 && i < units.length - 1) {
-      value /= 1024
-      i++
-    }
-
-    return `${value.toFixed(1)} ${units[i]}`
-  }
-
-  //
-  // OUTPUT
-  //
-
-  return `**💾 Usage**
-• **CPU:** ${load1}
-• **Memory:** ${formatBytesIEC(Number(usedMem))} / ${formatBytesIEC(Number(totalMem))}
-• **Disk:** ${formatBytesIEC(Number(usedDisk))} / ${formatBytesIEC(Number(totalDisk))}
-• **Temperature:** ${tempData}
-`
-}
-
-
-async function getWeather() {
-  const res = await fetch(`https://wttr.in/Bengaluru?format="%c%C| %f | %h | %m | %w | %p"`)
-  const data = await res.text()
-  const [weather, temp, humidity, moon, winds, preci] = data.replace(/\"/g, '').split("|")
-
-  return `**🌥️ Weather Report**
-• **Weather:** ${weather}
-• **Temperature:** ${temp}
-• **Humidity:** ${humidity}
-• **Moon Phase:** ${moon}
-• **Winds:** ${winds}
-• **Precipitation:** ${preci}
-`
-
-  console.log(data)
-}
 
 
 async function main() {
@@ -175,7 +54,34 @@ ${usage}
   console.log("Notification sent at " + dayjs().format("YYYY-MM-dd HH:mm:ss"))
 }
 
-main().catch((err) => {
+cron.schedule("0 7 * * *", () => {
-  console.error(err)
+  main().catch((err) => {
-  process.exit(1)
+    console.error(err)
+  })
 })
+
+
+const es = new EventSource("https://ntfy.hy-pr.link/daily-digest/sse", {
+  fetch: (input, init) =>
+    fetch(input, {
+      ...init,
+      headers: {
+        ...init?.headers,
+        Authorization: `Bearer ${TOKEN}`,
+      },
+    }),
+});
+
+es.onmessage = (e) => {
+  const msg = JSON.parse(e.data).message as string
+
+  if (msg === "/digest") {
+    main().catch((err) => {
+      console.error(err)
+    })
+  }
+};
+
+es.onerror = (e) => {
+  console.error(e);
+};

package.json

@@ -10,6 +10,8 @@
     "typescript": "^5"
   },
   "dependencies": {
-    "dayjs": "^1.11.20"
+    "dayjs": "^1.11.20",
+    "eventsource": "^4.1.0",
+    "node-cron": "^4.6.0"
   }
 }