src/store/progress-indicator/progress-indicator-reducer.ts

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 import { ProgressIndicatorAction, progressIndicatorActions } from "store/progress-indicator/progress-indicator-actions";
   6
   7 export type ProgressIndicatorState = { id: string, working: boolean }[];
   8
   9 const initialState: ProgressIndicatorState = [];
  10
  11 export const progressIndicatorReducer = (state: ProgressIndicatorState = initialState, action: ProgressIndicatorAction) => {
  12     const stopWorking = (id: string) => state.filter(p => p.id !== id);
  13
  14     return progressIndicatorActions.match(action, {
  15         START_WORKING: id => startWorking(id, state),
  16         STOP_WORKING: id => stopWorking(id),
  17         PERSIST_STOP_WORKING: id => state.map(p => ({
  18             ...p,
  19             working: p.id === id ? false : p.working
  20         })),
  21         TOGGLE_WORKING: ({ id, working }) => working ? startWorking(id, state) : stopWorking(id),
  22         default: () => state,
  23     });
  24 };
  25
  26 const startWorking = (id: string, state: ProgressIndicatorState) => {
  27     return getProgressIndicator(id)(state)
  28         ? state.map(indicator => indicator.id === id
  29             ? { ...indicator, working: true }
  30             : indicator)
  31         : state.concat({ id, working: true });
  32 };
  33
  34 export function isSystemWorking(state: ProgressIndicatorState): boolean {
  35     return state.length > 0 && state.reduce((working, p) => working ? true : p.working, false);
  36 }
  37
  38 export const getProgressIndicator = (id: string) =>
  39     (state: ProgressIndicatorState) =>
  40         state.find(state => state.id === id);