import { ComputedRef, DeepReadonly, Ref } from 'vue';
import { PromiseOr } from '@myparcel/ts-utils';

export interface StorableMap<T, K> {
    storage: Ref<Map<string, T>>;
    clear(): void;
    get<T1 extends T>(key: K): T1;
    has(key: K): boolean;
    set<T1 extends T>(key: K, value: T1): T1;
}
export interface RequestHandler<T> {
    data: DeepReadonly<Ref<T | null>>;
    loading: ComputedRef<boolean>;
    load(): Promise<void>;
}
export interface UseRequestOptions<T> {
    fallback?: T;
    onError?(error: unknown, queryKey: RequestKey): PromiseOr<void>;
    onSuccess?(data: T): PromiseOr<void>;
}
export type RequestKey = (string | object | RequestKey)[];
export type RequestStorage = StorableMap<unknown, RequestKey>;