text: /*
   * Copyright 2019 is-land
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  import { reject } from 'lodash';
  
  import {
    initializeRoutine,
    fetchFilesRoutine,
    createFileRoutine,
    deleteFileRoutine,
  } from './fileRoutines';
  
  const initialState = {
    isFetching: false,
    data: [],
    lastUpdated: null,
    error: null,
  };
  
  const sortedFiles = Files => Files.sort((a, b) => a.name.localeCompare(b.name));
  
  const reducer = (state, action) => {
    switch (action.type) {
      case initializeRoutine.TRIGGER:
        return initialState;
      case fetchFilesRoutine.REQUEST:
      case createFileRoutine.REQUEST:
      case deleteFileRoutine.REQUEST:
        return {
          ...state,
          isFetching: true,
        };
      case fetchFilesRoutine.SUCCESS:
        return {
          ...state,
          isFetching: false,
          data: action.payload,
          lastUpdated: new Date(),
        };
      case createFileRoutine.SUCCESS:
        return {
          ...state,
          isFetching: false,
          data: sortedFiles([...state.data, action.payload]),
          lastUpdated: new Date(),
        };
      case deleteFileRoutine.SUCCESS:
        return {
          ...state,
          isFetching: false,
          data: reject(state.data, file => {
            return (
              file.name === action.payload.name &&
              file.group === action.payload.group
            );
          }),
          lastUpdated: new Date(),
        };
      case fetchFilesRoutine.FAILURE:
      case createFileRoutine.FAILURE:
      case deleteFileRoutine.FAILURE:
        return {
          ...state,
          isFetching: false,
          error: action.payload,
        };
  
      default:
        return state;
    }
  };
  
  export { reducer, initialState };
  