Fix test with timezone

plugins/template-function-timestamp/package.json

@@ -5,10 +5,11 @@
   "scripts": {
     "build": "yaakcli build",
     "dev": "yaakcli dev",
-    "lint":"tsc --noEmit && eslint . --ext .ts,.tsx",
+    "lint": "tsc --noEmit && eslint . --ext .ts,.tsx",
     "test": "vitest --run tests"
   },
   "dependencies": {
+    "@date-fns/tz": "^1.4.1",
     "date-fns": "^4.1.0"
   }
 }

plugins/template-function-timestamp/src/index.ts

@@ -1,6 +1,7 @@
 import type { TemplateFunctionArg } from '@yaakapp-internal/plugins';
 import type { PluginDefinition } from '@yaakapp/api';
 
+import type { ContextFn } from 'date-fns';
 import {
   addDays,
   addHours,
@@ -24,7 +25,8 @@ const dateArg: TemplateFunctionArg = {
   name: 'date',
   label: 'Timestamp',
   optional: true,
-  description: 'Can be a timestamp in milliseconds, ISO string, or anything parseable by JS `new Date()`',
+  description:
+    'Can be a timestamp in milliseconds, ISO string, or anything parseable by JS `new Date()`',
   placeholder: new Date().toISOString(),
 };
 
@@ -148,8 +150,12 @@ export function calculateDatetime(args: { date?: string; expression?: string }):
   return jsDate.toISOString();
 }
 
-export function formatDatetime(args: { date?: string; format?: string }): string {
+export function formatDatetime(args: {
+  date?: string;
+  format?: string;
+  in?: ContextFn<Date>;
+}): string {
   const { date, format = 'yyyy-MM-dd HH:mm:ss' } = args;
   const d = parseDateString(date ?? '');
-  return formatDate(d, String(format));
+  return formatDate(d, String(format), { in: args.in });
 }

plugins/template-function-timestamp/tests/formatDatetime.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it } from 'vitest';
 import { calculateDatetime, formatDatetime } from '../src';
+import { tz } from "@date-fns/tz";
 
 describe('formatDatetime', () => {
   it('returns formatted current date', () => {
@@ -13,12 +14,12 @@ describe('formatDatetime', () => {
   });
 
   it('returns formatted specific timestamp', () => {
-    const result = formatDatetime({ date: '1752435296000' });
+    const result = formatDatetime({ date: '1752435296000', in: tz('America/Vancouver') });
     expect(result).toBe('2025-07-13 12:34:56');
   });
 
   it('returns formatted specific timestamp with decimals', () => {
-    const result = formatDatetime({ date: '1752435296000.19' });
+    const result = formatDatetime({ date: '1752435296000.19', in: tz('America/Vancouver') });
     expect(result).toBe('2025-07-13 12:34:56');
   });