Import of the watch repository from Pebble

src/idl/nanopb/event.proto

@@ -0,0 +1,46 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+Events represent discrete moments in time or windows in time where something
+happened.
+*/
+
+syntax = "proto2";
+
+package pebble.pipeline;
+
+option java_package = "com.getpebble.pipeline";
+
+import "activity.proto";
+import "common.proto";
+
+message Event {
+  enum Type {
+    UnknownEvent = 0; /// Protocol Buffers uses the first enum as the default
+    ActivitySessionEvent = 1;
+    // NotificationEvent = 2;
+    // ViewHealthChart = 3;
+  }
+  required bytes uuid = 1; /// 16-byte uuid for efficient message size
+  optional User user = 2; /// can usually be omitted and included in Requests
+  required Type type = 4; /// string types are more sanely extensible, but enum types would be more typo resistant and smaller message size
+  required uint32 time_utc = 5; /// when the event occured (unix epoch seconds)
+  required sint32 utc_to_local = 6; /// time_utc + utc_to_local = time_local. sint32 stores neg number efficiently. need to recast before adding to time_utc, but saves storage
+  optional uint32 created_time_utc = 7; /// events may be created at times other than their occurance
+  optional uint32 duration = 8;  /// in same units as time_utc (sec)
+  optional LocationInfo location = 9;
+  optional ActivitySession activity_session = 10;
+  // We will add the additional properties for events needed here later
+}