packages/pass/store/optimistic/utils/assertions.ts

   1 import type { Reducer } from 'redux';
   2
   3 import type {
   4     CombinedOptimisticReducer,
   5     DeterministicHistoryItem,
   6     HistoryItem,
   7     OptimisticEffectHistoryItem,
   8     OptimisticFailedHistoryItem,
   9     OptimisticHistoryItem,
  10     OptimisticReducersMapObject,
  11     WithOptimisticReducer,
  12     WrappedOptimisticState,
  13 } from '../types';
  14 import { HistoryFlag } from '../types';
  15
  16 export const isOptimisticHistoryItem = (item: HistoryItem): item is OptimisticHistoryItem =>
  17     item.type === HistoryFlag.OPTIMISTIC;
  18
  19 export const isFailedOptimisticHistoryItem = (item: HistoryItem): item is OptimisticFailedHistoryItem =>
  20     item.type === HistoryFlag.OPTIMISTIC && Boolean(item.failed);
  21
  22 export const isOptimisticEffectHistoryItem = (item: HistoryItem): item is OptimisticEffectHistoryItem =>
  23     item.type === HistoryFlag.OPTIMISTIC_EFFECT;
  24
  25 export const isDeterministicHistoryItem = (item: HistoryItem): item is DeterministicHistoryItem =>
  26     item.type === HistoryFlag.DETERMINISTIC;
  27
  28 export const isOptimisticState = <T extends {}>(state?: T): state is WrappedOptimisticState<T> =>
  29     state !== undefined && state !== null && typeof state === 'object' && Boolean((state as any).optimistic);
  30
  31 export const isOptimisticReducer = <T>(
  32     reducer: (Reducer<T> | WithOptimisticReducer<T>) | OptimisticReducersMapObject<T>
  33 ): reducer is WithOptimisticReducer<T> => typeof (reducer as any)?.innerReducer === 'function';
  34
  35 export const isCombinedOptimisticReducer = <T>(reducer: Reducer<T>): reducer is CombinedOptimisticReducer =>
  36     typeof (reducer as any)?.innerCombinedReducers === 'object';
  37
  38 export const isOptimisticHistoryItemWithId =
  39     (optimisticId: string, options?: { failed: boolean }) => (item: HistoryItem) =>
  40         isOptimisticHistoryItem(item) &&
  41         item.id === optimisticId &&
  42         (options?.failed !== undefined ? Boolean(item.failed) === options.failed : true);
  43
  44 export const isOptimisticEffectHistoryItemWithId = (optimisticId: string) => (item: HistoryItem) =>
  45     isOptimisticEffectHistoryItem(item) && item.id === optimisticId;