From 7e5e4d00eea8b74df0f3f835fb4a5d8c3162b56c Mon Sep 17 00:00:00 2001
From: poros <davidporos92@gmail.com>
Date: Tue, 21 Jan 2025 17:55:05 +0100
Subject: [PATCH] add objectid util functions

---
 .../date-time-converter.models.ts             |  2 --
 .../date-time-converter.vue                   |  7 +++---
 src/utils/objectId.ts                         | 24 +++++++++++++++++++
 3 files changed, 28 insertions(+), 5 deletions(-)
 create mode 100644 src/utils/objectId.ts

diff --git a/src/tools/date-time-converter/date-time-converter.models.ts b/src/tools/date-time-converter/date-time-converter.models.ts
index f5eedbfa..1af863f6 100644
--- a/src/tools/date-time-converter/date-time-converter.models.ts
+++ b/src/tools/date-time-converter/date-time-converter.models.ts
@@ -8,7 +8,6 @@ export {
   isUnixTimestamp,
   isTimestamp,
   isUTCDateString,
-  isMongoObjectId,
   dateToExcelFormat,
   excelFormatToDate,
   isExcelFormat,
@@ -36,7 +35,6 @@ const isRFC3339DateString = createRegexMatcher(RFC3339_REGEX);
 const isRFC7231DateString = createRegexMatcher(RFC7231_REGEX);
 const isUnixTimestamp = createRegexMatcher(/^[0-9]{1,10}$/);
 const isTimestamp = createRegexMatcher(/^[0-9]{1,13}$/);
-const isMongoObjectId = createRegexMatcher(/^[0-9a-fA-F]{24}$/);
 
 const isExcelFormat = createRegexMatcher(EXCEL_FORMAT_REGEX);
 
diff --git a/src/tools/date-time-converter/date-time-converter.vue b/src/tools/date-time-converter/date-time-converter.vue
index 5636ed46..52181e5b 100644
--- a/src/tools/date-time-converter/date-time-converter.vue
+++ b/src/tools/date-time-converter/date-time-converter.vue
@@ -28,6 +28,7 @@ import {
 } from './date-time-converter.models';
 import { withDefaultOnError } from '@/utils/defaults';
 import { useValidation } from '@/composable/validation';
+import { isValidObjectId, objectIdFromDate, objectIdToDate } from '@/utils/objectId';
 
 const inputDate = ref('');
 
@@ -84,9 +85,9 @@ const formats: DateFormat[] = [
   },
   {
     name: 'Mongo ObjectID',
-    fromDate: date => `${Math.floor(date.getTime() / 1000).toString(16)}0000000000000000`,
-    toDate: objectId => new Date(Number.parseInt(objectId.substring(0, 8), 16) * 1000),
-    formatMatcher: date => isMongoObjectId(date),
+    fromDate: date => objectIdFromDate(date.getTime(), true),
+    toDate: objectIdToDate,
+    formatMatcher: date => isValidObjectId(date),
   },
   {
     name: 'Excel date/time',
diff --git a/src/utils/objectId.ts b/src/utils/objectId.ts
new file mode 100644
index 00000000..076e81a7
--- /dev/null
+++ b/src/utils/objectId.ts
@@ -0,0 +1,24 @@
+import _ from 'lodash';
+
+export function isValidObjectId(objectId?: string): boolean {
+  return !_.isNil(objectId) && /^[0-9a-fA-F]{24}$/.test(objectId);
+}
+
+export function objectIdToDate(objectId: string): Date {
+  return new Date(Number.parseInt(objectId.substring(0, 8), 16) * 1000);
+}
+
+export function objectIdFromDate(milliseconds: number, onlyDate: boolean = false): string {
+  const suffixReplacer = () => {
+    if (onlyDate) {
+      return '0';
+    }
+
+    return (Math.random() * 16 | 0).toString(16);
+  };
+
+  const timestamp = (milliseconds / 1000 | 0).toString(16);
+  const suffix = 'xxxxxxxxxxxxxxxx'.replace(/[x]/g, suffixReplacer).toLowerCase();
+
+  return `${timestamp}${suffix}`;
+}