feat: support "X days late" format (#13)

src/parse-date-from-message.test.ts

@@ -40,6 +40,18 @@ describe('GetDateFromTsOptions', () => {
       message: '_(1 day late):_ hello',
     })
   })
+  test('1 day late (NZ)', () => {
+    const dateString = parseDateFromMessage({
+      messageText: '(1 day late): hello',
+      ts,
+      timeZone: 'Pacific/Auckland',
+    })
+    expect(dateString).toEqual({
+      type: 'MATCH',
+      date: '2023-07-17T00:00:00+00:00',
+      message: '_(1 day late):_ hello',
+    })
+  })
   test('2 days ago (NZ)', () => {
     const dateString = parseDateFromMessage({
       messageText: '(2 days ago): hello',
@@ -52,9 +64,9 @@ describe('GetDateFromTsOptions', () => {
       message: '_(2 days late):_ hello',
     })
   })
-  test('3 days ago (NZ)', () => {
+  test('3 days late (NZ)', () => {
     const dateString = parseDateFromMessage({
-      messageText: '(3 days ago): hello world',
+      messageText: '(3 days late): hello world',
       ts,
       timeZone: 'Pacific/Auckland',
     })

src/parse-date-from-message.ts

@@ -25,7 +25,7 @@ const parseDateFromMessage = (
   const instant = Number.parseInt(ts, 10) * 1000
 
   // Match if text starts with "(date):"
-  const regexMatch = /^\((today|yesterday|(\d+) days? ago)\): */.exec(
+  const regexMatch = /^\((today|yesterday|(\d+) days? (:?ago|late))\): */.exec(
     messageText,
   )
   const relativeDate = regexMatch?.[1]
@@ -45,13 +45,11 @@ const parseDateFromMessage = (
   } else {
     return new Error(`⚠️ Sorry, that date is not supported: "${relativeDate}".
 
-Supported dates:
-- today
-- yesterday
-- 1 day ago
-- 2 days ago
-- 3 days ago
-- X days ago`)
+Supported date formats:
+- (today):
+- (yesterday):
+- (1 day late):
+- (2 days ago):`)
   }
 
   if (date > instant) {