import { combineReducers } from "redux";
import {
  ADD_SIMULATION_SUCCEEDED,
  DELETE_SIMULATION_SUCCEEDED,
  SET_AUTH_VISIBILITY_FILTER
} from "../actions/simulations";
import { FETCH_AUTHORIZATIONS_OF_CURRENT_USER_SUCCEEDED } from "../actions/users";

export function authorizationsOfCurrentUser(state = [], action) {
  switch (action.type) {
    case FETCH_AUTHORIZATIONS_OF_CURRENT_USER_SUCCEEDED:
      return action.authorizationsOfCurrentUser;
    case ADD_SIMULATION_SUCCEEDED:
      return [...state, action.authorization];
    case DELETE_SIMULATION_SUCCEEDED:
      return state.filter(authorization => authorization[1] !== action.id);
    default:
      return state;
  }
}

export function authVisibilityFilter(state = "SHOW_ALL", action) {
  switch (action.type) {
    case SET_AUTH_VISIBILITY_FILTER:
      return action.filter;
    default:
      return state;
  }
}

export const simulationList = combineReducers({
  authorizationsOfCurrentUser,
  authVisibilityFilter
});