First step for Preset Post Types

@types/index.d.ts

@@ -17,11 +17,12 @@ declare namespace EntitiesSearch {
 	type Options<V> = Set<ControlOption<V>>;
 	type Value = string | number;
 
-	interface QueryArguments<V>
+	// TODO Can we convert QueryArguments to an Immutable Map?
+	interface QueryArguments
 		extends Partial<
 			Readonly<{
-				exclude: Set<V>;
-				include: Set<V>;
+				exclude: Set<string | number>;
+				include: Set<string | number>;
 				fields: EntitiesSearch.SearchQueryFields;
 				[p: string]: unknown;
 			}>
@@ -34,6 +35,8 @@ declare namespace EntitiesSearch {
 			url: string;
 			type: string;
 			subtype: string;
+			post_content: string;
+			post_excerpt: string;
 		}> {}
 
 	type SearchEntitiesFunction<E, K> = (
@@ -99,6 +102,7 @@ declare namespace EntitiesSearch {
 	/*
 	 * Api
 	 */
+	// TODO Better to convert the SearchQueryFields to a Set.
 	type SearchQueryFields = ReadonlyArray<
 		keyof EntitiesSearch.SearchEntityFields
 	>;

docs/api.md

@@ -72,3 +72,17 @@ NOTE: The function does not handle possible request exceptions.
 
 The `searchEntities` will automatically abort the requests with the same parameters if a new request is made before the previous one is completed.
 
+
+
+## `searchEntitiesOptions`
+
+This function is a wrapper for the `searchEntites` which perform a small additional task you might want to do quite ofter after retrieving the entities that is
+to convert the entities to `EntitiesSearch.ControlOptions`. The argument taken are the same of the `searchEntities`.
+
+### `createSearchEntitiesOptions`
+
+This is a factory function, it returns a `searchEntitiesOptions` function preconfigured to search for a specific *root* kind.
+
+For instance, if we call this function with `post` like `createSearchEntitiesOptions('post')` the returned function will be of type `searchEntitiesOptions` where you don't always have to pass the *root* type.
+
+Most probably this will be the function you'll deal with most as it make easy to build a function you can consume with other components.

docs/components.md

@@ -35,6 +35,10 @@ data down to the _Base Components_.
 - `CompositeEntitiesByKind` - A composite component that displays a list of entities by kind. In this context _kind_
   is `post` or `term` and _entity_ is the entity type of the content e.g. a `page` or a `category` term.
 
+## Preset Components
+
+- `PresetEntitiesByKind` - A top level component simplifying the DX with a preconfigured path of how to manage the data based on the context given.
+
 ## Composite Entities by Kind
 
 The `CompositeEntitiesByKind` is a _generic_ component that can be used to display a list of entities by kind. It acts
@@ -188,6 +192,51 @@ export function MyComponent(props) {
 Obviously depending on what you want to achieve you can use different _Base Components_ or create new ones, as mentioned
 above the package comes with a set of _Base Components_ that can be used out of the box.
 
+## Preset Entities By Kind
+
+This component can be used for different scenarios since it allows you to pass all the necessary information to render the Selectors.
+
+It gets passed the `entitiesFinder` which is the function performing the request to retrieve the Entities, but also it gives you the freedom to decide which components to render as Controls UI.
+
+Below you can see how easy is to create a new control set compared to use the low level api `CompositeEntitiesByKind`.
+
+```typescript jsx
+const entitiesFinder = createSearchEntitiesOptions( 'post' );
+const postTypesEntities = convertEntitiesToControlOptions(useQueryViewablePostTypes().records(), 'name', 'slug');
+
+const props = {
+    entitiesFinder,
+    entities: new Set( [ 1, 2, 3 ] ),
+    onChangeEntities: (entities) => {
+        // Do something with the new set of entities
+    },
+    entitiesComponent: ToggleControl,
+    kind: new Set(['post']),
+    kindOptions: stubControlOptionsSet(),
+    onChangeKind: (kinds) => {
+        // Do something with the new set of kinds
+    },
+    kindComponent: ToggleControl
+};
+
+return (<PresetEntitiesByKind { ...props } />);
+```
+
+Therefore, the preset simplify and take care of some parts that you would have to configure otherwise. In the chapter below you can read the available properties.
+
+### Properties
+
+- `entitiesFinder` - The function which perform the search of the contextual entities. You can use the `createSearchEntitiesOptions` function by passing the `root` value such as `term` or `post`.
+- `className` - For better customization you can pass your own custom classes.
+- `entities` - A `EntitiesSearch.Entities` set of selected entities. For when you want some entities already selected.
+- `onChangeEntities` - A task to perform when the selection change due to a user interaction.
+- `entitiesComponent` - The component to use to render the control ui for the entities.
+- `kind` - The predefined set of kind (e.g. post-types or taxonomies) you want to have already selected.
+- `kindOptions` - A collection of `EntitiesSearch.ControlOption` among which the user can choose to retrieve the entities from.
+- `onChangeKind` - A task to perform when the selection change due to a user interaction.
+- `kindComponent` - The component to use to render the control ui for the kinds.
+- `entitiesFields` - Additional fields you want to retrieve and have available within your `entitiesComponent` and `kindComponent`. For more info read the [Control Option](./control-option.md) documentation.
+
 ## About Singular Base Components
 
 The _Composite Component_ always give a collection of Entities and Kind even though you are consuming a Single* _Base

sources/client/src/api/create-search-entities-options.ts

@@ -0,0 +1,19 @@
+/**
+ * External dependencies
+ */
+import EntitiesSearch from '@types';
+
+/**
+ * Internal dependencies
+ */
+import { Set } from '../models/set';
+import { searchEntitiesOptions } from './search-entities-options';
+
+export function createSearchEntitiesOptions< E >( type: string ) {
+	return async (
+		phrase: string,
+		postTypes: EntitiesSearch.Kind< string >,
+		queryArguments?: EntitiesSearch.QueryArguments
+	): Promise< Set< EntitiesSearch.ControlOption< E > > > =>
+		searchEntitiesOptions( type, phrase, postTypes, queryArguments );
+}

sources/client/src/api/search-entities-options.ts

@@ -0,0 +1,36 @@
+/**
+ * External dependencies
+ */
+import EntitiesSearch from '@types';
+
+/**
+ * Internal dependencies
+ */
+import { Set } from '../models/set';
+import { searchEntities } from './search-entities';
+import { convertEntitiesToControlOptions } from '../utils/convert-entities-to-control-options';
+
+export async function searchEntitiesOptions< E >(
+	type: string,
+	phrase: string,
+	postTypes: EntitiesSearch.Kind< string >,
+	queryArguments?: EntitiesSearch.QueryArguments
+): Promise< Set< EntitiesSearch.ControlOption< E > > > {
+	const postsEntities =
+		await searchEntities< EntitiesSearch.SearchEntityFields >(
+			type,
+			postTypes,
+			phrase,
+			queryArguments
+		);
+
+	const { fields = [] } = queryArguments ?? {};
+	const [ label = 'title', value = 'id', ...extraFields ] = fields;
+
+	return convertEntitiesToControlOptions(
+		postsEntities,
+		label,
+		value,
+		...extraFields
+	);
+}

sources/client/src/api/search-entities.ts

@@ -20,7 +20,7 @@ export async function searchEntities< E >(
 	type: string,
 	subtype: Set< string >,
 	phrase: string,
-	queryArguments?: EntitiesSearch.QueryArguments< string >
+	queryArguments?: EntitiesSearch.QueryArguments
 ): Promise< Set< E > > {
 	const {
 		exclude,

sources/client/src/components/preset-entities-by-kind.tsx

@@ -0,0 +1,158 @@
+/**
+ * External dependencies
+ */
+import EntitiesSearch from '@types';
+import React, { JSX } from 'react';
+import classnames from 'classnames';
+
+/**
+ * WordPress dependencies
+ */
+import { createHigherOrderComponent } from '@wordpress/compose';
+
+/**
+ * Internal dependencies
+ */
+import { CompositeEntitiesByKind } from './composite-entities-by-kind';
+import { SearchControl } from './search-control';
+import { Set } from '../models/set';
+
+type EntitiesValue = EntitiesSearch.Value;
+type Entities = EntitiesSearch.Entities< EntitiesValue >;
+type KindValue = EntitiesSearch.Kind< string > | string;
+
+type EntitiesFinder = (
+	phrase: string,
+	kind: EntitiesSearch.Kind< string >,
+	queryArguments?: EntitiesSearch.QueryArguments
+) => Promise< Set< EntitiesSearch.ControlOption< EntitiesValue > > >;
+
+type EntitiesComponent = React.ComponentType<
+	EntitiesSearch.BaseControl< EntitiesValue >
+>;
+type KindComponent = React.ComponentType<
+	EntitiesSearch.BaseControl< KindValue >
+>;
+
+type PublicComponentProps = {
+	entitiesFinder: EntitiesFinder;
+	className?: string;
+	entities: Entities;
+	onChangeEntities: ( values: Entities ) => void;
+	entitiesComponent: EntitiesComponent;
+	kind: KindValue;
+	kindOptions: EntitiesSearch.Options< string >;
+	onChangeKind: ( values: KindValue ) => void;
+	kindComponent: KindComponent;
+	entitiesFields?: EntitiesSearch.QueryArguments[ 'fields' ];
+};
+
+interface PrivateComponentProps
+	extends Pick<
+		EntitiesSearch.CompositeEntitiesKinds< EntitiesValue, string >,
+		'kind' | 'entities'
+	> {
+	className?: string;
+	entitiesFinder: EntitiesFinder;
+	kindComponent: KindComponent;
+	entitiesComponent: EntitiesComponent;
+}
+
+function PrivateComponent( props: PrivateComponentProps ): JSX.Element {
+	const className = classnames( 'wes-preset-entities-by-kind', {
+		// @ts-ignore
+		[ props.className ]: !! props.className,
+	} );
+
+	return (
+		<div className={ className }>
+			<CompositeEntitiesByKind
+				entities={ props.entities }
+				kind={ props.kind }
+				searchEntities={ props.entitiesFinder }
+			>
+				{ ( _entities, _kind, search ) => (
+					<>
+						<props.kindComponent { ..._kind } />
+						<SearchControl onChange={ search } />
+						<props.entitiesComponent { ..._entities } />
+					</>
+				) }
+			</CompositeEntitiesByKind>
+		</div>
+	);
+}
+
+const withDataBound = createHigherOrderComponent<
+	React.ComponentType< PrivateComponentProps >,
+	React.ComponentType< PublicComponentProps >
+>(
+	( Component ) => ( props ) => {
+		const {
+			kind,
+			entities,
+			onChangeEntities,
+			kindOptions,
+			onChangeKind,
+			entitiesFields,
+			kindComponent,
+			entitiesComponent,
+			entitiesFinder,
+			..._props
+		} = props;
+
+		const kindValue = narrowKindValue( props.kind );
+
+		const _entities = {
+			value: entities,
+			onChange: onChangeEntities,
+		};
+
+		const _kind = {
+			value: kindValue,
+			options: kindOptions,
+			onChange: onChangeKind,
+		};
+
+		const _entitiesFinder = entitiesFinderWithExtraFields(
+			entitiesFinder,
+			entitiesFields
+		);
+
+		return (
+			<Component
+				entities={ _entities }
+				kind={ _kind }
+				entitiesFinder={ _entitiesFinder }
+				kindComponent={ kindComponent }
+				entitiesComponent={ entitiesComponent }
+				{ ..._props }
+			/>
+		);
+	},
+	'withDataBound'
+);
+
+function entitiesFinderWithExtraFields(
+	entitiesFinder: EntitiesFinder,
+	entitiesFields?: EntitiesSearch.QueryArguments[ 'fields' ]
+): EntitiesFinder {
+	return (
+		phrase: string,
+		kind: EntitiesSearch.Kind< string >,
+		queryArguments?: EntitiesSearch.QueryArguments
+	) =>
+		entitiesFinder( phrase, kind, {
+			...queryArguments,
+			fields: [
+				...( queryArguments?.fields ?? [ 'title', 'id' ] ),
+				...( entitiesFields ?? [] ),
+			],
+		} );
+}
+
+function narrowKindValue( value: KindValue ): EntitiesSearch.Kind< string > {
+	return typeof value === 'string' ? new Set( [ value ] ) : value;
+}
+
+export const PresetEntitiesByKind = withDataBound( PrivateComponent );

sources/client/src/index.ts

@@ -1,7 +1,10 @@
 export * from './api/search-entities';
+export * from './api/search-entities-options';
+export * from './api/create-search-entities-options';
 
 export * from './components/composite-entities-by-kind';
 export * from './components/plural-select-control';
+export * from './components/preset-entities-by-kind';
 export * from './components/radio-control';
 export * from './components/search-control';
 export * from './components/singular-select-control';

sources/client/src/utils/convert-entities-to-control-options.ts

@@ -18,7 +18,7 @@ export function convertEntitiesToControlOptions<
 	entities: Set< EntitiesFields >,
 	labelKey: string,
 	valueKey: string,
-	...extraKeys: Array< string >
+	...extraKeys: ReadonlyArray< string >
 ): Set< EntitiesSearch.ControlOption< V > > {
 	return entities.map( ( entity ) => {
 		const label = entity[ labelKey ];