function createCurrentUser({ sendRuntimeMessage, appendBackgroundRequestLog, messageTypes, environment }) {
  const { setTimeout } = environment;
  let pending = null;
  let allowed = false;
  let userId = "";
  function ensure() {
    if (!pending) {
      pending = (async () => {
        let retryDelay = 1000;
        // Keep a single pending identity request until the response is usable.
        for (;;) {
          try {
            const response = await sendRuntimeMessage({ type: messageTypes.requestCurrentUser });
            appendBackgroundRequestLog(response?.debugRequests);
            const user = response?.user;
            if (response?.ok === true && typeof user?.id === "string" && user.id.trim()
                && typeof user.name === "string" && user.name.trim()
                && Array.isArray(user.roles) && user.roles.every(role => typeof role === "string" && role.trim())) {
              userId = user.id;
              allowed = !user.roles.includes("SALES_REP");
              return allowed;
            }
          } catch (error) {
            appendBackgroundRequestLog(error?.debugRequests);
          }
          await new Promise(resolve => setTimeout(resolve, retryDelay));
          retryDelay = Math.min(retryDelay * 2, 10000);
        }
      })();
    }
    return pending;
  }
  return { ensure, allowsCrmActivities: () => allowed, getUserId: () => userId };
}