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* useHandler / useHandlerMutation — low-level direct registry dispatch hooks.
* Use these only when the action-based abstractions are not suitable.
*/
import {useMutation, useQuery, useQueryClient} from '@tanstack/react-query';
import {useCallback} from 'react';
import {useBlong} from '../context/BlongContext.js';
import type {IBlongError} from '../types/action.js';
/**
* useHandler — subscribe to a registry method result.
* Equivalent to useQuery but directly calling the registry.
*/
export function useHandler<TResult = unknown>(
method: string,
params?: Record<string, unknown>,
options?: {enabled?: boolean; staleTime?: number},
) {
const {handler} = useBlong();
return useQuery<TResult, IBlongError>({
queryKey: [method, params ?? {}],
queryFn: () => handler[method](params ?? {}, {}) as Promise<TResult>,
enabled: options?.enabled ?? true,
staleTime: options?.staleTime,
});
}
/**
* useHandlerMutation — call a registry method as a mutation.
*/
export function useHandlerMutation<
TResult = unknown,
TParams extends Record<string, unknown> = Record<string, unknown>,
>(method: string, invalidateQueries?: string[]) {
const {handler} = useBlong();
const queryClient = useQueryClient();
return useMutation<TResult, IBlongError, TParams>({
mutationFn: params => handler[method](params, {}) as Promise<TResult>,
onSuccess: () => {
for (const key of invalidateQueries ?? []) {
void queryClient.invalidateQueries({queryKey: [key]});
}
},
});
}
/** useHandler as an imperative call (no subscription) */
export function useHandlerCall<TResult = unknown>(method: string) {
const {handler} = useBlong();
return useCallback(
(params?: Record<string, unknown>) => handler[method](params ?? {}, {}) as Promise<TResult>,
[handler, method],
);
}
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