From 9760bdec3361f589c5c313e54f3a53455e461f66 Mon Sep 17 00:00:00 2001
From: cclohmar <claus.lohmar@lohmar.co.uk>
Date: Mon, 10 Aug 2026 07:23:24 +0100
Subject: [PATCH] fix: online check also looks for active recorder .part files

---
 api.go | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/api.go b/api.go
index 8b96def..19ce04f 100644
--- a/api.go
+++ b/api.go
@@ -29,15 +29,31 @@ func (s *Server) handleCameras(w http.ResponseWriter, r *http.Request) {
 	statuses := make([]CameraStatus, 0, len(s.appConfig.Cameras))
 	for _, cam := range s.appConfig.Cameras {
 		online := false
-		// Check if latest.jpg was recently updated.
 		camDir := cam.Name
 		if camDir == "" {
 			camDir = cam.ID
 		}
+		// Check snapshot file (updated every 1s by snapshot engine).
 		snapFile := filepath.Join(s.appConfig.Storage.RecordingsPath, camDir, "latest.jpg")
 		if info, err := os.Stat(snapFile); err == nil {
 			online = time.Since(info.ModTime()) < 10*time.Second
 		}
+		// Also check recorder activity (rec_*.part.mp4 exists and is recent).
+		if !online {
+			recDir := filepath.Join(s.appConfig.Storage.RecordingsPath, camDir)
+			if entries, err := os.ReadDir(recDir); err == nil {
+				for _, e := range entries {
+					if strings.HasPrefix(e.Name(), "rec_") && strings.HasSuffix(e.Name(), ".part.mp4") {
+						if info, err := e.Info(); err == nil {
+							if time.Since(info.ModTime()) < 15*time.Second {
+								online = true
+								break
+							}
+						}
+					}
+				}
+			}
+		}
 		statuses = append(statuses, CameraStatus{
 			CameraConfig: cam,
 			Online:       online,
@@ -74,6 +90,19 @@ func (s *Server) handleCameraByID(w http.ResponseWriter, r *http.Request) {
 		if info, err := os.Stat(snapFile); err == nil {
 			online = time.Since(info.ModTime()) < 10*time.Second
 		}
+		if !online {
+			recDir := filepath.Join(s.appConfig.Storage.RecordingsPath, camDir)
+			if entries, err := os.ReadDir(recDir); err == nil {
+				for _, e := range entries {
+					if strings.HasPrefix(e.Name(), "rec_") && strings.HasSuffix(e.Name(), ".part.mp4") {
+						if info, err := e.Info(); err == nil && time.Since(info.ModTime()) < 15*time.Second {
+							online = true
+							break
+						}
+					}
+				}
+			}
+		}
 		status := CameraStatus{
 			CameraConfig: *cam,
 			Online:       online,