import type { CockatielEvent, CockatielEventEmitter } from "@metamask/controller-utils";
/**
 * Equivalent to the built-in `FetchOptions` type, but renamed for clarity.
 */
export type FetchOptions = RequestInit;
/**
 * Converts a Cockatiel event type to an event emitter type.
 */
export type CockatielEventToEventEmitter<Event> = Event extends CockatielEvent<infer EventData> ? CockatielEventEmitter<EventData> : never;
/**
 * Obtains the event data type from a Cockatiel event or event listener type.
 */
export type ExtractCockatielEventData<CockatielEventOrEventListener> = CockatielEventOrEventListener extends CockatielEvent<infer Data> ? Data : CockatielEventOrEventListener extends (data: infer Data) => void ? Data : never;
/**
 * Extends the data that a Cockatiel event listener is called with additional
 * data.
 */
export type ExtendCockatielEventData<OriginalData, AdditionalData> = OriginalData extends void ? AdditionalData : OriginalData & AdditionalData;
/**
 * Removes keys from the data that a Cockatiel event listner is called with.
 */
export type ExcludeCockatielEventData<OriginalData, Keys extends PropertyKey> = OriginalData extends void ? void : Omit<OriginalData, Keys>;
/**
 * Converts a Cockatiel event type to an event listener type, but adding the
 * requested data.
 */
export type CockatielEventToEventListenerWithData<Event, Data> = (data: ExtendCockatielEventData<ExtractCockatielEventData<Event>, Data>) => void;
/**
 * Converts a Cockatiel event listener type to an event emitter type.
 */
export type CockatielEventToEventEmitterWithData<Event, Data> = CockatielEventEmitter<ExtendCockatielEventData<ExtractCockatielEventData<Event>, Data>>;
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