Add commit dates to apps

helpers/parse-github-date.js

@@ -0,0 +1,33 @@
+// in miliseconds
+const units = {
+    year  : 24 * 60 * 60 * 1000 * 365,
+    month : 24 * 60 * 60 * 1000 * 365/12,
+    day   : 24 * 60 * 60 * 1000,
+    hour  : 60 * 60 * 1000,
+    minute: 60 * 1000,
+    second: 1000
+}
+
+const rtf = new Intl.RelativeTimeFormat('en', { numeric: 'auto' })
+
+const getRelativeTime = function (d1, d2 = new Date()) {
+    var elapsed = d1 - d2
+
+    // "Math.abs" accounts for both "past" & "future" scenarios
+    for (var u in units)
+        if (Math.abs(elapsed) > units[u] || u == 'second')
+            return rtf.format(Math.round(elapsed/units[u]), u)
+
+}
+
+export default function (rawDate) {
+
+    const date = new Date(rawDate)
+
+    return {
+        date,
+        raw: rawDate,
+        timestamp: date.getTime(),
+        relative: getRelativeTime(date)
+    }
+}