1 files changed, 41 insertions, 0 deletions
diff --git a/node_modules/@11ty/eleventy-utils/src/DateCompare.js b/node_modules/@11ty/eleventy-utils/src/DateCompare.js
new file mode 100644
index 0000000..a160ace
--- /dev/null
+++ b/node_modules/@11ty/eleventy-utils/src/DateCompare.js
@@ -0,0 +1,41 @@
+class DateCompare {
+	static isTimestampWithinDuration(timestamp, duration, compareDate = Date.now()) {
+		// the default duration is Infinity (also "*")
+		if (!duration || duration === "*" || duration === Infinity) {
+			return true;
+		}
+
+		let expiration = timestamp + this.getDurationMs(duration);
+
+		// still valid
+		if (expiration > compareDate) {
+			return true;
+		}
+
+		// expired
+		return false;
+	}
+
+	static getDurationMs(duration = "0s") {
+		let durationUnits = duration.slice(-1);
+		let durationMultiplier;
+		if (durationUnits === "s") {
+			durationMultiplier = 1;
+		} else if (durationUnits === "m") {
+			durationMultiplier = 60;
+		} else if (durationUnits === "h") {
+			durationMultiplier = 60 * 60;
+		} else if (durationUnits === "d") {
+			durationMultiplier = 60 * 60 * 24;
+		} else if (durationUnits === "w") {
+			durationMultiplier = 60 * 60 * 24 * 7;
+		} else if (durationUnits === "y") {
+			durationMultiplier = 60 * 60 * 24 * 365;
+		}
+
+		let durationValue = parseInt(duration.slice(0, duration.length - 1), 10);
+		return durationValue * durationMultiplier * 1000;
+	}
+}
+
+module.exports = DateCompare;
+\ No newline at end of file