feat: add parseTime helper function

src/util.ts

@@ -296,3 +296,29 @@ export function areSetsEqual<T extends string | number | symbol>(
 
   return true
 }
+
+function arrayPadLeft<T>(array: T[], maxLength: number, fillValue: T): T[] {
+  return Array(Math.max(0, maxLength - array.length))
+    .fill(fillValue)
+    .concat(array)
+}
+
+export function parseTime(time: string): number {
+  let [days, hours, minutes, seconds] = Array(4).fill(0)
+
+  if (time.includes(':')) {
+    ;[days, hours, minutes, seconds] = arrayPadLeft<number | string>(time.split(':'), 4, 0)
+  } else {
+    // parses strings like: "3m32", "3 h 2s ", "9d2h3min1"
+    const format =
+      /^\s*(?:(?<days>\d+)\s*d)?\s*(?:(?<hours>\d+)\s*h)?\s*(?:(?<minutes>\d+)\s*m(?:in)?)?\s*(?:(?<seconds>\d+)\s*s?)?\s*$/
+    ;({ days, hours, minutes, seconds } = time.match(format)?.groups ?? {})
+  }
+
+  return (
+    parseInt(days || 0) * 24 * 60 * 60 +
+    parseInt(hours || 0) * 60 * 60 +
+    parseInt(minutes || 0) * 60 +
+    parseInt(seconds || 0)
+  )
+}