disable link for offline nodes + improve offline state

jsontime/jsontime.go

@@ -29,7 +29,9 @@ func (t *Time) UnmarshalJSON(data []byte) (err error) {
 	}
 	return
 }
-
+func (t Time) GetTime() time.Time{
+	return t.time
+}
 func (t Time) Unix() int64 {
 	return t.time.Unix()
 }
@@ -37,3 +39,10 @@ func (t Time) Unix() int64 {
 func (t Time) IsZero() bool {
 	return t.time.IsZero()
 }
+
+func (t Time) Add(d time.Duration) Time {
+	return Time{time: t.time.Add(d)}
+}
+func (t Time) After(u Time) bool {
+	return t.time.After(u.GetTime())
+}

models/graph.go

@@ -69,6 +69,7 @@ func (builder *GraphBuilder) readNodes(nodes map[string]*Node) {
 
 	// Add links
 	for sourceID, node := range nodes {
+		if flag := node.Flags; flag == nil || flag.Online {
 			if neighbours := node.Neighbours; neighbours != nil {
 				for _, batadvNeighbours := range neighbours.Batadv {
 					for targetAddress, link := range batadvNeighbours.Neighbours {
@@ -79,6 +80,7 @@ func (builder *GraphBuilder) readNodes(nodes map[string]*Node) {
 				}
 			}
 		}
+	}
 }
 
 func (builder *GraphBuilder) Extract() ([]*GraphNode, []*GraphLink) {

models/nodes.go

@@ -139,7 +139,7 @@ func (nodes *Nodes) worker() {
 		//
 		// set node as offline (without statistics)
 		for _, node := range nodes.List {
-			if node.Statistics != nil && node.Lastseen.Unix()+int64(5*nodes.config.Respondd.CollectInterval) < nodes.Timestamp.Unix() {
+			if node.Statistics != nil && nodes.Timestamp.After(node.Lastseen.Add( time.Second * time.Duration (5 * nodes.config.Respondd.CollectInterval ))) {
 				if node.Flags != nil {
 					node.Flags.Online = false
 				}