import { Map as ImmutableMap } from "immutable";

import { ACCOUNT_LOOKUP_FAIL } from "../actions/accounts";
import { ACCOUNT_IMPORT, ACCOUNTS_IMPORT } from "../actions/importer";

export const normalizeForLookup = str => str.toLowerCase();

const initialState = ImmutableMap();

export default function accountsMap(state = initialState, action) {
  switch(action.type) {
    case ACCOUNT_LOOKUP_FAIL:
      return action.error?.response?.status === 404 ? state.set(normalizeForLookup(action.acct), null) : state;
    case ACCOUNT_IMPORT:
      return state.set(normalizeForLookup(action.account.acct), action.account.id);
    case ACCOUNTS_IMPORT:
      return state.withMutations(map => action.accounts.forEach(account => map.set(normalizeForLookup(account.acct), account.id)));
    default:
      return state;
  }
}