Function buildTranscriptEntries

src/utils/transcript-export/index.ts:264–495

(
  events: OpenHandsEvent[],
  includeToolDetails: boolean,
)

  );

const buildTranscriptEntries = (
  events: OpenHandsEvent[],
  includeToolDetails: boolean,
): TranscriptEntry[] => {
  const uiEvents = events.reduce<OpenHandsEvent[]>((current, event) => {
    try {
      return handleEventForUI(event, current);
    } catch {
      return current;
    }
  }, []);
  const actionsById = new Map(
    events.filter(isActionEvent).map((event) => [event.id, event]),
  );
  const entries: TranscriptEntry[] = [];
  const emittedNarrationActionIds = new Set<string>();
  const renderableEvents = uiEvents.filter(
    (event) =>
      (isSwitchLLMObservationEvent(event) && !event.observation.is_error) ||
      shouldRenderEvent(event),
  );
  const renderedItems = groupEvents(
    renderableEvents,
    Number.MAX_SAFE_INTEGER,
    events,
  );

  const addActionNarration = (action: ActionEvent) => {
    if (
      emittedNarrationActionIds.has(action.id) ||
      !canRenderActionNarration(action)
    ) {
      return;
    }
    emittedNarrationActionIds.add(action.id);
    const content = getActionNarration(action);
    if (content) {
      entries.push({
        kind: "message",
        author: "assistant",
        content,
        timestamp: action.timestamp,
      });
    }
  };

  for (const item of renderedItems) {
    if (item.kind === "group") continue;
    if (item.kind === "thought") {
      addActionNarration(item.action);
      continue;
    }

    const { event } = item;
    try {
      const narrationAction = isActionEvent(event)
        ? event
        : isObservationEvent(event)