feat: more automated announcements (#8)

### Explanation

Makes my life so much easier.

### Issue

_No response_

### Attestations

- [x] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [x] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [x] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [x] I have pinned the dependencies to a specific patch version.

### Style

- [x] I have run the linter and resolved any errors.
- [x] My pull request uses an appropriate title, matching the conventional commit standards.
- [x] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [ ] All new and existing tests pass locally with my changes.
- [ ] Code coverage remains at or above the configured threshold.

### Documentation

_No response_

### Versioning

Minor - My pull request introduces a new non-breaking feature.

Reviewed-on: #8
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

server/src/modules/announceOnTwitter.ts

@@ -11,31 +11,50 @@ import { TwitterApi } from "twitter-api-v2";
  * @param content - The main body of the announcement.
  * @returns A message indicating the success or failure of the operation.
  */
-export const announceOnTwitter = async(content: string): Promise<string> => {
-  if (
-    process.env.TWITTER_CONSUMER_KEY === undefined
+export const announceOnTwitter
+ = async(content: Array<string>): Promise<string> => {
+   if (
+     process.env.TWITTER_CONSUMER_KEY === undefined
     || process.env.TWITTER_CONSUMER_SECRET === undefined
     || process.env.TWITTER_TOKEN === undefined
     || process.env.TWITTER_SECRET === undefined
-  ) {
-    return "Twitter credentials are not set.";
-  }
-  const twitterClient = new TwitterApi({
-    accessSecret: process.env.TWITTER_SECRET,
-    accessToken:  process.env.TWITTER_TOKEN,
-    appKey:       process.env.TWITTER_CONSUMER_KEY,
-    appSecret:    process.env.TWITTER_CONSUMER_SECRET,
-  });
+   ) {
+     return "Twitter credentials are not set.";
+   }
+   const twitterClient = new TwitterApi({
+     accessSecret: process.env.TWITTER_SECRET,
+     accessToken:  process.env.TWITTER_TOKEN,
+     appKey:       process.env.TWITTER_CONSUMER_KEY,
+     appSecret:    process.env.TWITTER_CONSUMER_SECRET,
+   });
 
-  const result = await twitterClient.v2.
-    tweet(content).
-    catch((error: unknown) => {
-      return error instanceof Error
-        ? error.message
-        : String(error);
-    });
-  if (typeof result === "string") {
-    return `Failed to send message to Twitter. ${result}`;
-  }
-  return "Successfully sent message to Twitter.";
-};
+   const [ firstPost, ...restOfPosts ] = content;
+   const failedReplies: Array<string> = [];
+   if (firstPost === undefined) {
+     return "No posts to send to Twitter.";
+   }
+   const result = await twitterClient.v2.
+     tweet(firstPost).
+     catch((error: unknown) => {
+       return error instanceof Error
+         ? error.message
+         : String(error);
+     });
+   if (typeof result === "string") {
+     return `Failed to send message to Twitter. ${result}`;
+   }
+   let { id } = result.data;
+   for (const post of restOfPosts) {
+     // eslint-disable-next-line no-await-in-loop -- We need to do this sequentially.
+     const twitterResponse = await twitterClient.v2.reply(post, id);
+     if (typeof twitterResponse !== "string") {
+       const { id: replyId } = twitterResponse.data;
+       id = replyId;
+       continue;
+     }
+     failedReplies.push(post);
+   }
+   return `Successfully sent initial post to Twitter. ${failedReplies.length > 0
+     ? `Failed to send ${failedReplies.length.toString()} replies: ${failedReplies.join(", ")}`
+     : `All ${(content.length - 1).toString()} replies were sent successfully.`}`;
+ };