feat: add cron and manual trigger

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}
+`
+}