Differential D11422 Diff 38696 lib/reducers/synced-metadata-reducer.js

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lib/reducers/synced-metadata-reducer.js

This file was added.

				// @flow

				import { setClientDBStoreActionType } from '../actions/client-db-store-actions.js';
				import {
				addSyncedMetadataEntryActionType,
				removeSyncedMetadataEntryActionType,
				} from '../actions/synced-metadata-actions.js';
				import {
				syncedMetadataStoreOpsHandlers,
				type SyncedMetadataStoreOperation,
				type ReplaceSyncedMetadataEntryOperation,
				type RemoveSyncedMetadataOperation,
				} from '../ops/synced-metadata-store-ops.js';
				import type { BaseAction } from '../types/redux-types.js';
				import type { SyncedMetadataStore } from '../types/synced-metadata-types.js';

				const { processStoreOperations: processStoreOps } =
				syncedMetadataStoreOpsHandlers;

				function reduceSyncedMetadataStore(
				state: SyncedMetadataStore,
				action: BaseAction,
				): {
				+syncedMetadataStore: SyncedMetadataStore,
				+syncedMetadataStoreOperations: $ReadOnlyArray<SyncedMetadataStoreOperation>,
				} {
				if (action.type === addSyncedMetadataEntryActionType) {
				const replaceOperation: ReplaceSyncedMetadataEntryOperation = {
				type: 'replace_synced_metadata_entry',
				payload: action.payload,
				};

				return {
				syncedMetadataStore: processStoreOps(state, [replaceOperation]),
				syncedMetadataStoreOperations: [replaceOperation],
				};
				} else if (action.type === removeSyncedMetadataEntryActionType) {
				const removeOperation: RemoveSyncedMetadataOperation = {
				type: 'remove_synced_metadata',
				payload: {
				names: [action.payload.name],
				},
				};

				return {
				syncedMetadataStore: processStoreOps(state, [removeOperation]),
				syncedMetadataStoreOperations: [removeOperation],
				};
				} else if (action.type === setClientDBStoreActionType) {
				const newSyncedMetadata = action.payload.syncedMetadata;

				if (!newSyncedMetadata) {
				return {
				syncedMetadataStore: state,
				syncedMetadataStoreOperations: [],
				};
				}

				const newSyncedMetadataStore: SyncedMetadataStore = {
				...state,
				syncedMetadata: newSyncedMetadata,
				};

				return {
				syncedMetadataStore: newSyncedMetadataStore,
				syncedMetadataStoreOperations: [],
				};
				}

				return {
				syncedMetadataStore: state,
				syncedMetadataStoreOperations: [],
				};
				}

				export { reduceSyncedMetadataStore };