/**
 * Internal dependencies
 */
import type { DataRegistry, StoreDescriptor, AnyConfig } from '../types';

const coreDataStore: StoreDescriptor< AnyConfig > = {
	name: 'core/data',
	instantiate( registry: DataRegistry ) {
		const getCoreDataSelector =
			( selectorName: string ) =>
			( key: string, ...args: unknown[] ) => {
				return registry.select( key )[ selectorName ]( ...args );
			};

		const getCoreDataAction =
			( actionName: string ) =>
			( key: string, ...args: unknown[] ) => {
				return registry.dispatch( key )[ actionName ]( ...args );
			};

		return {
			getSelectors(): Record< string, ( ...args: any[] ) => any > {
				return Object.fromEntries(
					[
						'getIsResolving',
						'hasStartedResolution',
						'hasFinishedResolution',
						'isResolving',
						'getCachedResolvers',
					].map( ( selectorName ) => [
						selectorName,
						getCoreDataSelector( selectorName ),
					] )
				);
			},

			getActions(): Record< string, ( ...args: any[] ) => any > {
				return Object.fromEntries(
					[
						'startResolution',
						'finishResolution',
						'invalidateResolution',
						'invalidateResolutionForStore',
						'invalidateResolutionForStoreSelector',
					].map( ( actionName ) => [
						actionName,
						getCoreDataAction( actionName ),
					] )
				);
			},

			subscribe() {
				// There's no reasons to trigger any listener when we subscribe to this store
				// because there's no state stored in this store that need to retrigger selectors
				// if a change happens, the corresponding store where the tracking stated live
				// would have already triggered a "subscribe" call.
				return () => () => {};
			},
		};
	},
};

export default coreDataStore;