import { defineWrappedResponseHandler } from "#server/utils/handler";
import { R } from "#server/utils/response";
import { resolveAgentIdentity } from "#server/service/agent/identity";
import { getSessionByIdAndUser, updateSession } from "#server/service/agent/session";

export default defineWrappedResponseHandler(async (event) => {
  const identity = await resolveAgentIdentity(event);
  const id = getRouterParam(event, "id");
  if (!id) {
    return R.error("参数无效", null);
  }

  const session = await getSessionByIdAndUser(id, identity.userId, identity.tempToken);
  if (!session) {
    return R.error("会话不存在", null);
  }

  const body = await readBody(event);
  const { title } = body as { title?: string };

  if (!title || typeof title !== "string" || title.trim().length === 0) {
    return R.error("标题不能为空", null);
  }

  if (title.length > 100) {
    return R.error("标题不能超过100字符", null);
  }

  await updateSession(id, { title: title.trim() });
  return R.success({ id, title: title.trim() });
});