import { favorites } from './initialState.json';
import {
  FavoritesActionTypes,
  FavoritesAction,
  FavoritesState,
} from '../redux-types/favorites.redux-types';

export default (
  state: FavoritesState = favorites as FavoritesState,
  action: FavoritesAction,
): FavoritesState => {
  switch (action.type) {
    case FavoritesActionTypes.GET_FAVORITES_ERROR:
      return {
        ...state,
        error: action.error,
        loading: false,
      };
    case FavoritesActionTypes.GET_FAVORITES_LOADING:
      return {
        ...state,
        loading: true,
      };
    case FavoritesActionTypes.GET_FAVORITES_SUCCESS:
      return {
        ...state,
        data: action.data,
        error: null,
        keys: action.keys,
        loading: false,
      };
    case FavoritesActionTypes.SET_FAVORITE_ERROR:
      return {
        ...state,
        error: action.error,
      };
    case FavoritesActionTypes.SET_FAVORITE_SUCCESS:
      return {
        ...state,
        data: action.data,
        error: null,
        keys: action.keys,
      };
    case FavoritesActionTypes.SET_FAVORITE_FROM_FAVORITE:
      return {
        ...state,
        error: null,
        keys: action.keys,
      };
    case FavoritesActionTypes.SET_FAVORITES_ALERT:
      return {
        ...state,
        alert: action.alert,
      };
    case FavoritesActionTypes.SET_FAVORITES_FILTERS:
      return {
        ...state,
        filters: action.filters,
      };
    case FavoritesActionTypes.UNSET_FAVORITE_ERROR:
      return {
        ...state,
        error: action.error,
      };
    case FavoritesActionTypes.UNSET_FAVORITE_SUCCESS:
      return {
        ...state,
        data: action.data,
        error: null,
        keys: action.keys,
      };
    default:
      return state;
  }
};