appview: update tab counts to reflect search filters

When searching issues or pulls with filters, the open/closed tab counts
were showing unfiltered repo totals. Run per-state count queries when a
search is active and update RepoInfo.Stats before rendering.

Based on a fix by Patrick Dewey (pdewey.com) for issue #400.

Signed-off-by: Thomas Karpiniec <[e-mail]>

appview/issues/issues.go

···
 		totalIssues = f.RepoStats.IssueCount.Closed
 	}
 
+	repoInfo := rp.repoResolver.GetRepoInfo(r, user)
+
 	var issues []models.Issue
 
 	if searchOpts.HasSearchFilters() {
···
 		}
 		l.Debug("searched issues with indexer", "count", len(res.Hits))
 		totalIssues = int(res.Total)
+
+		// update tab counts to reflect filtered results
+		countOpts := searchOpts
+		countOpts.Page = pagination.Page{Limit: 1}
+		countOpts.IsOpen = ptrBool(true)
+		if openRes, err := rp.indexer.Search(r.Context(), countOpts); err == nil {
+			repoInfo.Stats.IssueCount.Open = int(openRes.Total)
+		}
+		countOpts.IsOpen = ptrBool(false)
+		if closedRes, err := rp.indexer.Search(r.Context(), countOpts); err == nil {
+			repoInfo.Stats.IssueCount.Closed = int(closedRes.Total)
+		}
 
 		if len(res.Hits) > 0 {
 			issues, err = db.GetIssues(
···
 
 	rp.pages.RepoIssues(w, pages.RepoIssuesParams{
 		LoggedInUser: rp.oauth.GetMultiAccountUser(r),
-		RepoInfo:     rp.repoResolver.GetRepoInfo(r, user),
+		RepoInfo:     repoInfo,
 		Issues:       issues,
 		IssueCount:   totalIssues,
 		LabelDefs:    defs,

appview/pulls/pulls.go

···
 		totalPulls = int(res.Total)
 		l.Debug("searched pulls with indexer", "count", len(res.Hits))
 
+		// update tab counts to reflect filtered results
+		countOpts := searchOpts
+		countOpts.Page = pagination.Page{Limit: 1}
+		for _, ps := range []models.PullState{models.PullOpen, models.PullMerged, models.PullClosed} {
+			ps := ps
+			countOpts.State = &ps
+			countRes, err := s.indexer.Search(r.Context(), countOpts)
+			if err != nil {
+				continue
+			}
+			switch ps {
+			case models.PullOpen:
+				repoInfo.Stats.PullCount.Open = int(countRes.Total)
+			case models.PullMerged:
+				repoInfo.Stats.PullCount.Merged = int(countRes.Total)
+			case models.PullClosed:
+				repoInfo.Stats.PullCount.Closed = int(countRes.Total)
+			}
+		}
+
 		if len(res.Hits) > 0 {
 			pulls, err = db.GetPulls(
 				s.db,