Add created_timestamp to GameEvent

Author: g3force

frontend/src/proto/ssl_gc_game_event.ts

@@ -19,6 +19,8 @@ export interface GameEvent {
    * Ignored if sent by autoRef to game controller.
    */
   origin?: string[];
+  /** Unix timestamp in microseconds when the event was created. */
+  createdTimestamp?: number;
   event?:
     | { $case: "ballLeftFieldTouchLine"; ballLeftFieldTouchLine: GameEvent_BallLeftField }
     | { $case: "ballLeftFieldGoalLine"; ballLeftFieldGoalLine: GameEvent_BallLeftField }
@@ -856,6 +858,7 @@ export const GameEvent = {
     return {
       type: isSet(object.type) ? gameEvent_TypeFromJSON(object.type) : GameEvent_Type.UNKNOWN_GAME_EVENT_TYPE,
       origin: Array.isArray(object?.origin) ? object.origin.map((e: any) => String(e)) : [],
+      createdTimestamp: isSet(object.createdTimestamp) ? Number(object.createdTimestamp) : 0,
       event: isSet(object.ballLeftFieldTouchLine)
         ? {
           $case: "ballLeftFieldTouchLine",
@@ -1036,6 +1039,7 @@ export const GameEvent = {
     } else {
       obj.origin = [];
     }
+    message.createdTimestamp !== undefined && (obj.createdTimestamp = Math.round(message.createdTimestamp));
     message.event?.$case === "ballLeftFieldTouchLine" &&
       (obj.ballLeftFieldTouchLine = message.event?.ballLeftFieldTouchLine
         ? GameEvent_BallLeftField.toJSON(message.event?.ballLeftFieldTouchLine)

internal/app/engine/engine.go

@@ -80,6 +80,14 @@ func NewEngine(gameConfig config.Game, engineConfig config.Engine) (e *Engine) {
 // Enqueue adds the change to the change queue
 func (e *Engine) Enqueue(change *statemachine.Change) {
 	if change.GetAddGameEventChange() != nil {
+		// Set creation timestamp
+		gameEvent := change.GetAddGameEventChange().GameEvent
+		if gameEvent.CreatedTimestamp != nil {
+			log.Printf("Ignore existing created_timestamp in enqueued game event: %v", gameEvent)
+		}
+		gameEvent.CreatedTimestamp = new(uint64)
+		*gameEvent.CreatedTimestamp = uint64(e.timeProvider().UnixMicro())
+
 		change = e.filterGameEvent(change)
 		if change == nil {
 			return