import { Function } from './Function.js';
import { Overloads } from './Overloads.js';
import './Unique.js';

/**
 * Extract the parameters of all functions in a tuple.
 */
type ExtractTupleParameters<T extends Array<Function<any, any[]>>> = {
    [K in keyof T]: T[K] extends (...args: infer P) => any ? P : never;
}[number];
/**
 * Extract the parameters from the signatures of a function with overloads.
 *
 * @template T The function type.
 * @example
 * function add(a: number, b: number): number
 * function add(a: string, b: string): string
 * type Result = OverloadsParameters<typeof add> // [number, number] | [string, string]
 */
type OverloadsParameters<T extends Function<any, any[]>> = ExtractTupleParameters<Overloads<T>>;

export type { OverloadsParameters };