chore: remove old and unused code

github.go

@@ -1093,16 +1093,6 @@ func (c *GitHubClient) allCheckContexts(
 	return nodes, nil
 }
 
-func checkMayHaveUsefulAnnotations(check githubCheckContext) bool {
-	state := strings.ToUpper(firstNonEmpty(check.Conclusion, check.State, check.Status))
-	switch state {
-	case "FAILURE", "ERROR", "CANCELLED", "TIMED_OUT", "ACTION_REQUIRED", "STALE":
-		return true
-	default:
-		return false
-	}
-}
-
 func (c *GitHubClient) checkAnnotations(
 	ctx context.Context, checkID string,
 ) ([]githubCheckAnnotation, error) {
@@ -1427,6 +1417,17 @@ func (c *GitHubClient) EnrichPullRequest(
 		Owner: details.Owner, Repository: details.Repository, Number: details.Number,
 		HeadOID: details.HeadOID, CheckAnnotations: make(map[string][]CheckAnnotation),
 	}
+	type annotationJob struct {
+		index int
+		check Check
+	}
+	type annotationResult struct {
+		checkID     string
+		annotations []CheckAnnotation
+		err         error
+	}
+	var jobs []annotationJob
+	var annotations []annotationResult
 	for _, check := range details.Checks {
 		if check.ID == "" || !checkStateMayHaveUsefulAnnotations(check) {
 			continue
@@ -1435,37 +1436,69 @@ func (c *GitHubClient) EnrichPullRequest(
 			result.CheckAnnotations[check.ID] = annotations
 			continue
 		}
-		nodes, err := c.checkAnnotations(ctx, check.ID)
-		if err != nil {
-			result.Issues = append(result.Issues, DataIssue{
-				Component: "check annotations", Message: err.Error(),
-			})
-			continue
-		}
-		annotations := make([]CheckAnnotation, 0, len(nodes))
-		for _, annotation := range nodes {
-			annotations = append(annotations, CheckAnnotation{
-				Path: annotation.Path, StartLine: annotation.Location.Start.Line,
-				EndLine: annotation.Location.End.Line, Level: annotation.AnnotationLevel,
-				Title: annotation.Title, Message: annotation.Message,
-			})
-		}
-		c.storeAnnotations(check.ID, annotations)
-		result.CheckAnnotations[check.ID] = annotations
+		jobs = append(jobs, annotationJob{index: len(annotations), check: check})
+		annotations = append(annotations, annotationResult{checkID: check.ID})
 	}
+
+	var wait sync.WaitGroup
+	queue := make(chan annotationJob, len(jobs))
+	for _, job := range jobs {
+		queue <- job
+	}
+	close(queue)
+	for range min(4, len(jobs)) {
+		wait.Add(1)
+		go func() {
+			defer wait.Done()
+			for job := range queue {
+				nodes, err := c.checkAnnotations(ctx, job.check.ID)
+				if err != nil {
+					annotations[job.index].err = err
+					continue
+				}
+				converted := make([]CheckAnnotation, 0, len(nodes))
+				for _, annotation := range nodes {
+					converted = append(converted, CheckAnnotation{
+						Path: annotation.Path, StartLine: annotation.Location.Start.Line,
+						EndLine: annotation.Location.End.Line, Level: annotation.AnnotationLevel,
+						Title: annotation.Title, Message: annotation.Message,
+					})
+				}
+				c.storeAnnotations(job.check.ID, converted)
+				annotations[job.index].annotations = converted
+			}
+		}()
+	}
+
+	var conflictFiles []string
+	var conflictErr error
 	if details.Mergeable == "CONFLICTING" && c.conflicts != nil {
-		files, err := c.loadConflictFiles(
-			ctx, details.RepositoryURL, details.Number, details.BaseRef,
-			details.BaseOID, details.HeadOID,
-		)
-		if err != nil {
+		wait.Add(1)
+		go func() {
+			defer wait.Done()
+			conflictFiles, conflictErr = c.loadConflictFiles(
+				ctx, details.RepositoryURL, details.Number, details.BaseRef,
+				details.BaseOID, details.HeadOID,
+			)
+		}()
+	}
+	wait.Wait()
+	for _, loaded := range annotations {
+		if loaded.err != nil {
 			result.Issues = append(result.Issues, DataIssue{
-				Component: "conflict file scan", Message: err.Error(),
+				Component: "check annotations", Message: loaded.err.Error(),
 			})
 		} else {
-			result.ConflictFiles = files
+			result.CheckAnnotations[loaded.checkID] = loaded.annotations
 		}
 	}
+	if conflictErr != nil {
+		result.Issues = append(result.Issues, DataIssue{
+			Component: "conflict file scan", Message: conflictErr.Error(),
+		})
+	} else if conflictFiles != nil {
+		result.ConflictFiles = conflictFiles
+	}
 	level, summary := healthOK, "secondary PR data loaded"
 	if len(result.Issues) > 0 {
 		level, summary = healthWarning, fmt.Sprintf(