Function onTextMessageContentEvent

packages/bot-teams/src/event-renderer.ts:76–84

({ event })

      streamFor(event.messageId);
    },
    onTextMessageContentEvent({ event }) {
      if (aborted) return;
      const next = (buffers.get(event.messageId) ?? "") + (event.delta ?? "");
      buffers.set(event.messageId, next);
      // Mid-stream the buffer is usually unbalanced markdown (an open `**`,
      // code fence, etc.); balance it for display so the edited message never
      // renders broken. The finalized message uses the raw text (below).
      streamFor(event.messageId).append(autoCloseOpenMarkdown(next));
    },
    async onTextMessageEndEvent({ event }) {
      if (aborted) return;
      const text = buffers.get(event.messageId) ?? "";