make events respond in thread

Author: sethetter

commands/events.ts

@@ -1,5 +1,5 @@
 import { Command } from "./mod.ts";
-import { AppMention, slack } from "../lib/slack.ts";
+import { AppMention, respondInThread, slack } from "../lib/slack.ts";
 import {
   convertEventsToDisplayString,
   getEventsInTheNextWeek,
@@ -10,9 +10,9 @@ export const eventsCommand: Command<AppMention> = {
   handler: async (event) => {
     const events = await getEventsInTheNextWeek();
     const text = convertEventsToDisplayString(events);
-    await slack.chat.postMessage({
-      channel: event.channel,
-      text: text,
+    await respondInThread(event, text, {
+      unfurl_links: false,
+      unfurl_media: false,
     });
   },
   name: "events",

lib/slack.ts

@@ -1,5 +1,8 @@
 import { Static, Type } from "@sinclair/typebox";
-import { WebClient as SlackClient } from "npm:@slack/web-api";
+import {
+  ChatPostMessageArguments,
+  WebClient as SlackClient,
+} from "npm:@slack/web-api";
 import { config } from "./config.ts";
 
 export const slack = new SlackClient(config.SLACK_TOKEN);
@@ -39,12 +42,21 @@ interface EventWithTS {
   channel: string;
 }
 
-export async function respondInThread(event: EventWithTS, text: string) {
+type ExtraPostMessageArgs = Omit<
+  ChatPostMessageArguments,
+  "channel" | "text" | "thread_ts" | "ts"
+>;
+export async function respondInThread(
+  event: EventWithTS,
+  text: string,
+  extraArgs?: ExtraPostMessageArgs
+) {
   const thread_ts = event.thread_ts || event.ts;
   const response = await slack.chat.postMessage({
     channel: event.channel,
     text: text,
     thread_ts: thread_ts,
+    ...extraArgs,
   });
   return response;
 }