Update wnt api examples for WNT 4.0.0 (#143)

* Update WNT protocol buffer files for WNT 4.0.0

* Update WNT websocket API helpers for WNT 4.0.0

* Updated WNT examples for WNT 4.0.0

Contains following changes:
- Modifications based on the changes in message structures
- Updated examples to be compatible with newer websocket-client versions (on_close callback)

* Fix realtime situation message handling in componentsinformation.py

* Improve compatibility with different websocket-client library versions

- Default values to on_close callback handler parameters to support old versions
- Disable tracing by default to avoid too verbose output in newer versions

* Add requirements.txt to help running e.g. in virtual environments

* Remove unnecessary originator_token fields from get type of messages

wnt/protocol_buffers_files/commons.proto

@@ -7,8 +7,6 @@
 */
 syntax="proto2";
 
-import "nanopb.proto";
-
 package com.wirepas.proto.wnt;
 
 enum BaseRole {
@@ -18,6 +16,16 @@ enum BaseRole {
     ROLE_UNKNOWN = 255;
 }
 
+enum MessageSendingType {
+    MESSAGE_SENDING_TYPE_INSTANT = 1;
+    MESSAGE_SENDING_TYPE_DISTRIBUTED = 2;
+}
+
+enum SelectionType {
+    SELECTION_TYPE_NETWORK = 1;
+    SELECTION_TYPE_SINK = 2;
+}
+
 message FullRole {
     optional BaseRole base_role = 1;
     optional bool cb_mac = 2; // True = low latency, false = low energy
@@ -26,15 +34,10 @@ message FullRole {
 }
 
 message AppConfigData {
-    enum Type {
-        NETWORK = 1;
-        SINK = 2;
-    }
-
     optional uint32 interval = 1;  // Diagnostics interval in seconds
     optional uint32 sequence = 2;
-    optional bytes app_config = 3 [(nanopb).max_size = 1024];
+    optional bytes app_config = 3;
     optional uint32 max_length = 4; // Maximum length of the app config
     optional bool is_override_on = 5; // WNT backend will override appconfig if it is changed outside of WNT
-    optional Type type = 6;
+    optional SelectionType selection_type = 6;
 }

wnt/protocol_buffers_files/internal.proto

@@ -7,7 +7,6 @@
 */
 syntax="proto2";
 
-import "nanopb.proto";
 import "commons.proto";
 
 package com.wirepas.proto.wnt;
@@ -70,6 +69,9 @@ message BackendMessage { // Used for backend internal messaging
         RTSituationSendPositioningData = 9;
         RTSituationComponentInformation = 10;
         RTSituationQueryNodeMetadata = 11;
+        RTSituationQueryNetworkMetadata = 12;
+        RTSituationQueryBuildingAndFloorPlanMetadata = 13;
+        RTSituationQueryAreaMetadata = 14;
     }
 
     optional MessageType message = 1;
@@ -88,6 +90,7 @@ message OnlineStatus { // Node online status
     optional Status status = 1;
     optional uint32 update_time = 2; // Epoch
     optional uint32 last_time_series_write = 3; // Epoch
+    optional Status previous_status = 4;
 
     optional bool is_sink_online_in_gateway = 10;
 }
@@ -140,6 +143,7 @@ message Network {
     optional uint32 id = 1;
     optional string name = 2;
     optional uint32 update_time = 3;
+    optional bool is_delete_nodes = 4;
 }
 
 message User {
@@ -262,12 +266,12 @@ message MetadataUpdateMessage {
 }
 
 message SinkPseudoIdMap {
-    optional string pseudo_id = 1 [(nanopb).max_size = 1024];
+    optional string pseudo_id = 1;
 
     optional uint32 network_id = 10;
     optional uint32 address = 11; // Node id
-    optional string gateway_id = 12 [(nanopb).max_size = 128];
-    optional string gateway_sink_id = 13 [(nanopb).max_size = 128];
+    optional string gateway_id = 12;
+    optional string gateway_sink_id = 13;
 
     optional AppConfigData app_config = 20;
     optional uint32 stored_scratchpad_sequence = 21;