Use database status and health, calculate md5

server/index.go

@@ -52,7 +52,7 @@ func handleIndex(w http.ResponseWriter, r *http.Request) {
 	}()
 
 	var size int
-	err := db.QueryRow(r.Context(), "SELECT SUM(size) AS size FROM files WHERE missing = $1", false).Scan(&size)
+	err := db.QueryRow(r.Context(), "SELECT SUM(size) AS size FROM files WHERE status = $1", constants.FILE_STATUS_EXISTS).Scan(&size)
 	if err != nil {
 		size = 0
 	}