Function replaceMessages

packages/app/src/context/server-session.ts:462–472

(sessionID: string, messages: Message[])

  }

  const replaceMessages = (sessionID: string, messages: Message[]) => {
    const messageIDs = new Set(messages.map((message) => message.id))
    const dropped = (data.message[sessionID] ?? []).filter((message) => !messageIDs.has(message.id))
    setData("message", sessionID, reconcile(messages, { key: "id" }))
    setData(
      produce((draft) => {
        for (const message of dropped) deleteMessageParts(draft, message.id)
      }),
    )
    return messageIDs
  }

  const replaceParts = (
    sessionID: string,