sforkowany z mirror/soapbox
62 wiersze
1.5 KiB
TypeScript
62 wiersze
1.5 KiB
TypeScript
import { useEffect } from 'react';
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import z from 'zod';
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import { useAppDispatch, useAppSelector, useLoading } from 'soapbox/hooks';
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import { importEntities } from '../actions';
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import type { Entity } from '../types';
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import type { EntitySchema, EntityPath, EntityFn } from './types';
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/** Additional options for the hook. */
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interface UseEntityOpts<TEntity extends Entity> {
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/** A zod schema to parse the API entity. */
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schema?: EntitySchema<TEntity>
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/** Whether to refetch this entity every time the hook mounts, even if it's already in the store. */
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refetch?: boolean
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}
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function useEntity<TEntity extends Entity>(
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path: EntityPath,
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entityFn: EntityFn<void>,
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opts: UseEntityOpts<TEntity> = {},
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) {
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const [isFetching, setPromise] = useLoading();
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const dispatch = useAppDispatch();
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const [entityType, entityId] = path;
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const defaultSchema = z.custom<TEntity>();
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const schema = opts.schema || defaultSchema;
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const entity = useAppSelector(state => state.entities[entityType]?.store[entityId] as TEntity | undefined);
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const isLoading = isFetching && !entity;
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const fetchEntity = async () => {
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try {
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const response = await setPromise(entityFn());
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const entity = schema.parse(response.data);
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dispatch(importEntities([entity], entityType));
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} catch (e) {
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// do nothing
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}
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};
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useEffect(() => {
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if (!entity || opts.refetch) {
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fetchEntity();
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}
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}, []);
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return {
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entity,
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fetchEntity,
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isFetching,
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isLoading,
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};
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}
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export {
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useEntity,
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}; |