began server client reactive

logic/nodes.go

@@ -166,6 +166,59 @@ func ValidateNode(node *models.Node, isUpdate bool) error {
 	return err
 }
 
+// ShouldPeersUpdate - takes old node and sees if certain fields changing would trigger a peer update
+func ShouldPeersUpdate(currentNode *models.Node, newNode *models.Node) bool {
+	// single comparison statements
+	if newNode.Endpoint != currentNode.Endpoint ||
+		newNode.LocalAddress != currentNode.LocalAddress ||
+		newNode.PublicKey != currentNode.PublicKey ||
+		newNode.Address != currentNode.Address ||
+		newNode.IsEgressGateway != currentNode.IsEgressGateway ||
+		newNode.IsIngressGateway != currentNode.IsIngressGateway ||
+		newNode.IsRelay != currentNode.IsRelay ||
+		newNode.UDPHolePunch != currentNode.UDPHolePunch ||
+		len(newNode.AllowedIPs) != len(currentNode.AllowedIPs) {
+		return true
+	}
+
+	// multi-comparison statements
+	if newNode.IsDualStack == "yes" {
+		if newNode.Address6 != currentNode.Address6 {
+			return true
+		}
+	}
+
+	if newNode.IsEgressGateway == "yes" {
+		if len(currentNode.EgressGatewayRanges) != len(newNode.EgressGatewayRanges) {
+			return true
+		}
+		for _, address := range newNode.EgressGatewayRanges {
+			if !StringSliceContains(currentNode.EgressGatewayRanges, address) {
+				return true
+			}
+		}
+	}
+
+	if newNode.IsRelay == "yes" {
+		if len(currentNode.RelayAddrs) != len(newNode.RelayAddrs) {
+			return true
+		}
+		for _, address := range newNode.RelayAddrs {
+			if !StringSliceContains(currentNode.RelayAddrs, address) {
+				return true
+			}
+		}
+	}
+
+	for _, address := range newNode.AllowedIPs {
+		if !StringSliceContains(currentNode.AllowedIPs, address) {
+			return true
+		}
+	}
+
+	return false
+}
+
 // GetAllNodes - returns all nodes in the DB
 func GetAllNodes() ([]models.Node, error) {
 	var nodes []models.Node