import { CLI } from "./public-api.mjs";
import { Expand, ParsedArgs } from "@cli-forge/parser";

//#region src/lib/composable-builder.d.ts
/**
 * Extracts the TChildren type parameter from a CLI type.
 */
type ExtractChildren<T> = T extends CLI<any, any, infer C, any, any> ? C : never;
/**
 * Extracts the TArgs type parameter from a CLI type.
 */
type ExtractArgs<T> = T extends CLI<infer A, any, any, any, any> ? A : never;
/**
 * Type for a composable builder function that transforms a CLI.
 * Used with `chain` to compose multiple builders.
 */
type ComposableBuilder<TArgs2 extends ParsedArgs, TAddedChildren = {}, TAddedProviders = {}> = <TInit extends ParsedArgs, THandlerReturn, TChildren, TParent, TProviders>(init: CLI<TInit, THandlerReturn, TChildren, TParent, TProviders>) => CLI<Expand<TInit & TArgs2>, THandlerReturn, TChildren & TAddedChildren, TParent, TProviders & TAddedProviders>;
/**
 * Creates a composable builder function that can be used with `chain`.
 * Can be used to add options, commands, or any other CLI modifications.
 * Children added by the builder function are properly tracked in the type.
 *
 * The builder function runs once at creation time against a recording Proxy.
 * Subsequent applications replay the captured operations, ensuring inline
 * middleware closures have stable references for Set-based deduplication.
 *
 * @typeParam TArgs2 - The args type after the builder runs
 * @typeParam TChildren2 - The children type added by the builder
 * @typeParam TProviders2 - The providers type added by the builder
 */
declare function makeComposableBuilder<TArgs2 extends ParsedArgs, TChildren2 = {}, TProviders2 = {}>(fn: (init: CLI<ParsedArgs, any, {}, any, {}>) => CLI<TArgs2, any, TChildren2, any, TProviders2>): <TInit extends ParsedArgs, THandlerReturn, TChildren, TParent, TProviders>(init: CLI<TInit, THandlerReturn, TChildren, TParent, TProviders>) => CLI<Expand<TInit & TArgs2>, THandlerReturn, TChildren & TChildren2, TParent, TProviders & TProviders2>;
//#endregion
export { ComposableBuilder, ExtractArgs, ExtractChildren, makeComposableBuilder };
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