ONLY if original message was in a thread

src/scripts/federal-holidays.js

@@ -43,8 +43,8 @@ module.exports = (app) => {
   app.message(
     directMention(),
     /next (federal )?holiday/i,
-    ({ event: { thread_ts: thread, ts }, say }) => {
-      say({ text: getHolidayText(), thread_ts: thread ?? ts });
+    ({ event: { thread_ts: thread }, say }) => {
+      say({ text: getHolidayText(), thread_ts: thread });
       incrementStats("next federal holiday request");
     },
   );

src/scripts/federal-holidays.test.js

@@ -83,12 +83,12 @@ describe("federal holidays bot", () => {
         name: "Test Holiday day",
       });
 
-      handler({ event: { ts: 0 }, say });
+      handler({ event: {}, say });
 
       expect(say.mock.calls.length).toBe(1);
       expect(say).toHaveBeenCalledWith({
         text: "The next federal holiday is Test Holiday day in 1 days on Friday, January 2nd",
-        thread_ts: 0,
+        thread_ts: undefined,
       });
     });
 
@@ -103,7 +103,7 @@ describe("federal holidays bot", () => {
         alsoObservedAs: "Other holiday day day day",
       });
 
-      handler({ event: { thread_ts: "thread", ts: 12345 }, say });
+      handler({ event: { thread_ts: "thread" }, say });
 
       expect(say.mock.calls.length).toBe(1);
       expect(say).toHaveBeenCalledWith({
@@ -124,12 +124,12 @@ describe("federal holidays bot", () => {
         name: "Christmas Day",
       });
 
-      handler({ event: { ts: 12345 }, say });
+      handler({ event: {}, say });
 
       expect(say.mock.calls.length).toBe(1);
       expect(say).toHaveBeenCalledWith({
         text: "The next federal holiday is Christmas Day :christmas_tree: in 1 days on Friday, January 2nd",
-        thread_ts: 12345,
+        thread_ts: undefined,
       });
     });
 
@@ -144,12 +144,12 @@ describe("federal holidays bot", () => {
         alsoObservedAs: "Indigenous Peoples' Day",
       });
 
-      handler({ event: { ts: 0 }, say });
+      handler({ event: {}, say });
 
       expect(say.mock.calls.length).toBe(1);
       expect(say).toHaveBeenCalledWith({
         text: "The next federal holiday is Indigenous Peoples' Day in 1 days on Friday, January 2nd",
-        thread_ts: 0,
+        thread_ts: undefined,
       });
     });
   });