Added 12 Timestamps

src/core/operations/FromMacAbsoluteTimestamp.mjs

@@ -0,0 +1,45 @@
+/**
+ * @author mykulh [mykulh@yahoo.co.uk]
+ * @copyright Crown Copyright 2021
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import moment from "moment-timezone";
+
+/**
+ * From Mac Absolute Timestamp operation
+ */
+class FromMacAbsoluteTimestamp extends Operation {
+
+    /**
+     * FromMacAbsoluteTimestamp constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "From Mac Absolute Timestamp";
+        this.module = "Default";
+        this.description = "Converts Apple Mac Absolute Timestamp to datetime string<br><br>e.g. <code>591621300</code> becomes <code>Tue 1 October 2019 11:15:00 UTC</code><br><br>Mac Absolute timestamp is a 32-bit value representing the number of seconds since January 1, 2001 UTC";
+        this.infoURL = "https://developer.apple.com/documentation/corefoundation/cfabsolutetime";
+        this.inputType = "number";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {number} input
+     * @returns {string}
+     * @throws {OperationError} if invalid unit
+     */
+    run(input, args) {
+
+        const d = moment.unix(input + 978307200);
+        return d.tz("UTC").format("ddd D MMMM YYYY HH:mm:ss") + " UTC";
+
+         throw new OperationError();
+    }
+}
+
+export default FromMacAbsoluteTimestamp;