fix(lock-bot): dynamically adjust lock message for issues vs pull requests

.github/local-actions/lock-closed/lib/main.ts

@@ -8,6 +8,26 @@ import {
 } from '../../../../github-actions/utils.js';
 import {setTimeout as setTimeoutPromise} from 'timers/promises';
 
+/**
+ * The URL of the policy. This is used to link to the policy from the lock message.
+ */
+const POLICY_URL =
+  'https://github.com/angular/angular/blob/f0fbced1c55bc8b8ed9df01cea99df42f3e7eae3/contributing-docs/auto-issue-locking.md';
+
+/**
+ * Generates a lock message for a GitHub issue or pull request.
+ * @param itemType The type of the item, either 'pull request' or 'issue'.
+ * @returns The lock message string.
+ */
+function getLockMessage(itemType: 'pull request' | 'issue'): string {
+  return `${itemType.charAt(0).toUpperCase() + itemType.slice(1)} has been automatically locked due to inactivity.
+Please file a new issue if you are encountering a similar or related problem.
+
+Read more about our [automatic conversation locking policy](${POLICY_URL}).
+
+<sub>_This action has been performed automatically by a bot._</sub>`;
+}
+
 async function lockIssue(
   client: Octokit,
   issue: number,
@@ -58,15 +78,6 @@ async function runLockClosedAction(github: Octokit, repo: string): Promise<void>
 
   // Fixed amount of days a closed issue must be inactive before being locked
   const days = 30;
-  // Standardized Angular Team message for locking issues
-  const policyUrl =
-    'https://github.com/angular/angular/blob/f0fbced1c55bc8b8ed9df01cea99df42f3e7eae3/contributing-docs/auto-issue-locking.md';
-  const message =
-    'This issue has been automatically locked due to inactivity.\n' +
-    'Please file a new issue if you are encountering a similar or related problem.\n\n' +
-    `Read more about our [automatic conversation locking policy](${policyUrl}).\n\n` +
-    '<sub>_This action has been performed automatically by a bot._</sub>';
-
   // Set the threshold date based on the days inactive
   const threshold = new Date();
   threshold.setDate(threshold.getDate() - days);
@@ -100,6 +111,7 @@ async function runLockClosedAction(github: Octokit, repo: string): Promise<void>
         continue;
       }
       console.info(`Locking ${itemType} #${item.number}`);
+      const message = getLockMessage(itemType);
       await lockIssue(github, item.number, repo, message);
       await setTimeoutPromise(250);
       ++lockCount;