Differential D6885 Diff 23287 lib/reducers/device-token-reducer.js

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				// @flow

				import { setDeviceTokenActionTypes } from '../actions/device-actions.js';
				import type { BaseAction } from '../types/redux-types';
				import { incrementalStateSyncActionType } from '../types/socket-types.js';
				import { updateTypes } from '../types/update-types.js';

				function reduceDeviceToken(state: ?string, action: BaseAction): ?string {
				if (action.type === setDeviceTokenActionTypes.success) {
				return action.payload;
				}
				if (action.type === incrementalStateSyncActionType) {
				for (const update of action.payload.updatesResult.newUpdates) {
				if (
				update.type === updateTypes.BAD_DEVICE_TOKEN &&
				update.deviceToken === state
				) {
				return null;
				}
				}
				}
				return state;
				}

				export { reduceDeviceToken };