Fix issues with the tag workflow

.github/workflows/tagPriorityLow.yml

@@ -2,6 +2,8 @@ name: tag low priority issues
 
 on: 
   workflow_dispatch:
+  schedule:
+    - cron: '0 16 * * 4'
 
 permissions:
     issues: write
@@ -37,15 +39,27 @@ jobs:
               // Querying Lastest Work Items
               const queryResult = await adoClient.queryById(process.env.query_id);
 
-              // Iterate over work items, including relations
-              // https://github.com/microsoft/azure-devops-node-api/blob/master/api/interfaces/WorkItemTrackingInterfaces.ts#L1485
-              const workItemsDetails = await adoClient.getWorkItems(queryResult.workItems.map(wi => wi.id), null, null, 1);
+              // Work Item IDs
+              const workItemIds = queryResult.workItems.map(wi => wi.id);
+
+              // getWorkItems has a limit of 200, so we need to batch the requests
+              const batchSize = 200;
+              const workItemsDetails = [];
+
+              for (let i = 0; i < workItemIds.length; i += batchSize) {
+                const batchIds = workItemIds.slice(i, i + batchSize);
+                // Include relations in the response
+                // https://github.com/microsoft/azure-devops-node-api/blob/master/api/interfaces/WorkItemTrackingInterfaces.ts#L1485
+                const batchDetails = await adoClient.getWorkItems(batchIds, null, null, 1);
+                workItemsDetails.push(...batchDetails);
+              }
 
               // Obtain GitHub Issue Number
               function getGitHubIssueNumber(workItem) {
 
                 // Try using relations
-                const relation = workItem.relations.find(r => r.rel === 'Hyperlink' && r.url.includes('github.com'));
+                const relation = workItem?.relations?.find(r => r.rel === 'Hyperlink' && r.url.includes('github.com'));
+
                 if (relation) {
                   const match = relation.url.match(/github.com\/[^/]+\/[^/]+\/issues\/(\d+)/);
                   if (match) {
@@ -54,7 +68,7 @@ jobs:
                 }
 
                 // Try using the title, which includes [GitHub #123]
-                const match = workItem.fields['System.Title'].match(/\[GitHub #(\d+)\]/);
+                const match = workItem?.fields['System.Title']?.match(/\[GitHub #(\d+)\]/);
                 if (match) {
                   return match[1];
                 }
@@ -67,12 +81,26 @@ jobs:
 
               // Add priority-low label to GitHub issues
               const addLowPriorityLabel = async (issueNumber) => {
+                // Check if the issue already has the label
+                const { data: labels } = await github.rest.issues.listLabelsOnIssue({
+                  issue_number: issueNumber,
+                  owner: context.repo.owner,
+                  repo: context.repo.repo
+                });
+
+                if (labels.some(l => l.name === 'priority-low')) {
+                  console.log(`Issue #${issueNumber} already has the label`);
+                  return;
+                }  
+
+                // Add the label
                 await github.rest.issues.addLabels({
                   issue_number: issueNumber,
                   owner: context.repo.owner,
                   repo: context.repo.repo,
                   labels: ['priority-low']
                 });
+                console.log(`Added label to issue #${issueNumber}`);
               }
 
               ghIssueNumbers.forEach(async (issueNumber) => {