import { Options } from 'fdir';
import { Plugin } from 'gramio';
import { PicomatchOptions } from 'picomatch';

type SoftString<T extends string> = T | (string & {});

/** Params that used in {@link AutoloadOptions.onLoad | onLoad} and {@link AutoloadOptions.onFinish | onFinish} hooks */
interface AutoloadOptionsPathParams {
    absolute: string;
    relative: string;
}
/** Options for {@link autoload} plugin with options for {@link Options | fdir} and  {@link PicomatchOptions | picomatch}*/
interface AutoloadOptions {
    /** Configure `fdir` options */
    fdir?: Options;
    /** Configure `picomatch` options */
    picomatch?: PicomatchOptions;
    /**
     * import a specific `export` from a file
     * @example import first export
     * ```ts
     * import: (file) => Object.keys(file).at(0) || "default",
     * ```
     * @default "default"
     */
    import?: SoftString<"default"> | ((file: any) => string);
    /**
     * [Glob patterns](<https://en.wikipedia.org/wiki/Glob_(programming)>)
     * @default "**\/*.{ts,js,cjs,mjs}"
     * */
    patterns?: string | string[];
    /**
     * Throws an error if no matches are found.
     * @default true
     */
    failGlob?: boolean;
    /**
     * Skip imports where needed `export` not defined
     * @default false
     */
    skipImportErrors?: boolean;
    /**
     * The path to the folder
     * @default "./commands"
     * */
    path?: string;
    /** The hook that is called when loading a file */
    onLoad?: (path: AutoloadOptionsPathParams) => unknown;
    /** The hook that is called after loading all files */
    onFinish?: (paths: AutoloadOptionsPathParams[]) => unknown;
}
/**
 * Autoload commands plugin for GramIO.
 * @example
 * ## Register the plugin
 *
 * ```ts
 * // index.ts
 * import { Bot } from "gramio";
 * import { autoload } from "@gramio/autoload";
 *
 * const bot = new Bot(process.env.TOKEN as string)
 *     .extend(autoload())
 *     .onStart(console.log);
 *
 * bot.start();
 *
 * export type BotType = typeof bot;
 * ```
 *
 * ## Create command
 *
 * ```ts
 * // commands/command.ts
 * import type { BotType } from "..";
 *
 * export default (bot: BotType) =>
 *     bot.command("start", (context) => context.send("hello!"));
 * ```
 */
declare function autoload(options?: AutoloadOptions): Promise<Plugin>;

export { type AutoloadOptions, type AutoloadOptionsPathParams, autoload };