import {IOptions as NodeGlobOptions} from 'glob';
import {Options as FastGlobOptions} from 'fast-glob';

declare namespace globby {
	type ExpandDirectoriesOption =
		| boolean
		| ReadonlyArray<string>
		| {files: ReadonlyArray<string>; extensions: ReadonlyArray<string>};

	interface GlobbyOptions extends FastGlobOptions {
		/**
		If set to `true`, `globby` will automatically glob directories for you. If you define an `Array` it will only glob files that matches the patterns inside the `Array`. You can also define an `Object` with `files` and `extensions` like in the example below.

		Note that if you set this option to `false`, you won't get back matched directories unless you set `onlyFiles: false`.

		@default true

		@example
		```
		import globby = require('globby');

		(async () => {
			const paths = await globby('images', {
				expandDirectories: {
					files: ['cat', 'unicorn', '*.jpg'],
					extensions: ['png']
				}
			});
			console.log(paths);
			//=> ['cat.png', 'unicorn.png', 'cow.jpg', 'rainbow.jpg']
		})();
		```
		*/
		readonly expandDirectories?: ExpandDirectoriesOption;

		/**
		Respect ignore patterns in `.gitignore` files that apply to the globbed files.

		@default false
		*/
		readonly gitignore?: boolean;
	}

	interface GlobTask {
		readonly pattern: string;
		readonly options: globby.GlobbyOptions;
	}

	interface GitignoreOptions {
		readonly cwd?: string;
		readonly ignore?: ReadonlyArray<string>;
	}

	type FilterFunction = (path: string) => boolean;
}

interface Gitignore {
	/**
	`.gitignore` files matched by the ignore config are not used for the resulting filter function.

	@returns A `Promise` for a filter function indicating whether a given path is ignored via a `.gitignore` file.

	@example
	```
	import {gitignore} from 'globby';

	(async () => {
		const isIgnored = await gitignore();
		console.log(isIgnored('some/file'));
	})();
	```
	*/
	(options?: globby.GitignoreOptions): Promise<globby.FilterFunction>;

	/**
	@returns A filter function indicating whether a given path is ignored via a `.gitignore` file.
	*/
	sync(options?: globby.GitignoreOptions): globby.FilterFunction;
}

declare const globby: {
	/**
	@param patterns - See supported `minimatch` [patterns](https://github.com/isaacs/minimatch#usage).
	@param options - See the [`fast-glob` options](https://github.com/mrmlnc/fast-glob#options-1) in addition to the ones in this package.
	@returns A `Promise<Array>` of matching paths.

	@example
	```
	import globby = require('globby');

	(async () => {
		const paths = await globby(['*', '!cake']);

		console.log(paths);
		//=> ['unicorn', 'rainbow']
	})();
	```
	*/
	(
		patterns: string | ReadonlyArray<string>,
		options?: globby.GlobbyOptions
	): Promise<string[]>;

	/**
	@param patterns - See supported `minimatch` [patterns](https://github.com/isaacs/minimatch#usage).
	@param options - See the [`fast-glob` options](https://github.com/mrmlnc/fast-glob#options-1) in addition to the ones in this package.
	@returns An `Array` of matching paths.
	*/
	sync(
		patterns: string | ReadonlyArray<string>,
		options?: globby.GlobbyOptions
	): string[];

	/**
	Note that you should avoid running the same tasks multiple times as they contain a file system cache. Instead, run this method each time to ensure file system changes are taken into consideration.

	@param patterns - See supported `minimatch` [patterns](https://github.com/isaacs/minimatch#usage).
	@param options - See the [`fast-glob` options](https://github.com/mrmlnc/fast-glob#options-1) in addition to the ones in this package.
	@returns An `Array<Object>` in the format `{ pattern: string, options: Object }`, which can be passed as arguments to [`fast-glob`](https://github.com/mrmlnc/fast-glob). This is useful for other globbing-related packages.
	*/
	generateGlobTasks(
		patterns: string | ReadonlyArray<string>,
		options?: globby.GlobbyOptions
	): globby.GlobTask[];

	/**
	Note that the options affect the results. If `noext: true` is set, then `+(a|b)` will not be considered a magic pattern. If the pattern has a brace expansion, like `a/{b/c,x/y}`, then that is considered magical, unless `nobrace: true` is set.

	This function is backed by [`node-glob`](https://github.com/isaacs/node-glob#globhasmagicpattern-options).

	@param patterns - See supported `minimatch` [patterns](https://github.com/isaacs/minimatch#usage).
	@param options - See the [`node-glob` options](https://github.com/isaacs/node-glob#globhasmagicpattern-options).
	@returns A boolean of whether there are any special glob characters in the `patterns`.
	*/
	hasMagic(
		patterns: string | ReadonlyArray<string>,
		options?: NodeGlobOptions
	): boolean;

	readonly gitignore: Gitignore;

	// TODO: Remove this for the next major release
	default: typeof globby;
};

export = globby;