import { Map, List, fromJS } from "immutable"

export const defaultState = Map({
  "fetchingModules": false,
  "users": List(),
  "stats": Map({}),
  "modules": Map({}),
});

const handlers = {
  "ADMIN_LIST_USERS_FULFILLED": (state, action) => state.set("users", fromJS(action.payload.response.data)),
  "ADMIN_GET_STATS_FULFILLED": (state, action) => state.set("stats", fromJS(action.payload.response.data)),
  "ADMIN_GET_MODULES_PENDING": state => state.set("fetchingModules", true),
  "ADMIN_GET_MODULES_FULFILLED": (state, action) => state.merge(fromJS({
    "modules": action.payload.response.data,
    "fetchingModules": false,
  })),
}

export default (state = defaultState, action) =>
  handlers[action.type] ? handlers[action.type](state, action) : state;