import { SYSTEM_DEFAULT } from "../../../../../constant";

/**
 * The per-toolbar prefix every session-storage key in this package is built
 * from: the group id, prefixed with the host's unique view id when it supplies
 * one.
 *
 * `getUniqueViewId` is invoked synchronously by every known host; if a host ever
 * calls back later the key falls back to the bare group id, exactly as the
 * inline copies did.
 */
export const getSessionKeyPrefix = (
  uiElementGroupId: string,
  getUniqueViewId?: (callBack: (response: string) => void) => void,
): string => {
  let uniqueViewId = uiElementGroupId;
  if (getUniqueViewId) {
    getUniqueViewId((id: string) => {
      uniqueViewId = id + "-" + uiElementGroupId;
    });
  }
  return uniqueViewId;
};

/**
 * Session-storage key holding the System Default view's configuration
 * (`enableDefaultSaveInSession`).
 *
 * `UserView` built this key inline in three places — reset, load and now the
 * copy-source lookup — each repeating the same "prefix with the unique view id
 * if the host supplies one" dance. One definition keeps the writer
 * (`saveSystemDefaultInSession`) and every reader on the same key.
 */
export const getSystemDefaultSessionKey = (
  uiElementGroupId: string,
  getUniqueViewId?: (callBack: (response: string) => void) => void,
): string => `${getSessionKeyPrefix(uiElementGroupId, getUniqueViewId)}_${SYSTEM_DEFAULT}`;

export default getSystemDefaultSessionKey;