feat(PROJ-26,PROJ-38): IMAP LDAP-Auth + Mail-Threading

internal/api/search_handlers.go

@@ -131,7 +131,7 @@ func (s *Server) handleSearch(w http.ResponseWriter, r *http.Request) {
 		Success:   true,
 	})
 
-	// Enrich hits with metadata (from, subject, date, size, attachments).
+	// Enrich hits with metadata (from, subject, date, size, attachments, thread).
 	type enrichedHit struct {
 		ID             string  `json:"id"`
 		Score          float64 `json:"score"`
@@ -141,6 +141,8 @@ func (s *Server) handleSearch(w http.ResponseWriter, r *http.Request) {
 		Date           string  `json:"date,omitempty"`
 		Size           int64   `json:"size,omitempty"`
 		HasAttachments bool    `json:"has_attachments"`
+		ThreadID       string  `json:"thread_id,omitempty"`
+		ThreadSize     int     `json:"thread_size,omitempty"`
 	}
 
 	// auditor role: restrict results to mails with no tenant assignment.
@@ -169,6 +171,13 @@ func (s *Server) handleSearch(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	// Batch-load thread info for all hits
+	hitIDs := make([]string, len(result.Hits))
+	for i, h := range result.Hits {
+		hitIDs[i] = h.ID
+	}
+	threadInfo, _ := s.store.GetThreadInfo(r.Context(), hitIDs)
+
 	enriched := make([]enrichedHit, 0, len(result.Hits))
 	for _, h := range result.Hits {
 		eh := enrichedHit{ID: h.ID, Score: h.Score}
@@ -200,6 +209,11 @@ func (s *Server) handleSearch(w http.ResponseWriter, r *http.Request) {
 				}
 			}
 		}
+		// PROJ-38: attach thread info
+		if ti, ok := threadInfo[h.ID]; ok && ti.ThreadSize > 1 {
+			eh.ThreadID = ti.ThreadID
+			eh.ThreadSize = ti.ThreadSize
+		}
 		enriched = append(enriched, eh)
 	}
 
@@ -289,6 +303,14 @@ func (s *Server) handleGetMail(w http.ResponseWriter, r *http.Request) {
 		verifiedAt = vs.VerifiedAt.UTC().Format(time.RFC3339)
 	}
 
+	// PROJ-38: load thread_id from DB
+	var threadID string
+	if ti, err := s.store.GetThreadInfo(r.Context(), []string{id}); err == nil {
+		if info, ok := ti[id]; ok {
+			threadID = info.ThreadID
+		}
+	}
+
 	writeJSON(w, http.StatusOK, map[string]interface{}{
 		"id":          id,
 		"from":        pm.From,
@@ -303,6 +325,7 @@ func (s *Server) handleGetMail(w http.ResponseWriter, r *http.Request) {
 		"attachments": attachments,
 		"verify_ok":   verifyOK,
 		"verified_at": verifiedAt,
+		"thread_id":   threadID,
 	})
 }