import process from 'node:process';

import { isDynamicPattern } from 'globby';

import resolveConfig from './resolveConfig.mjs';
import toPath from './utils/toPath.mjs';

/** @import {Config as StylelintConfig} from 'stylelint' */

/**
 * @param {import('stylelint').LinterOptions} options
 * @returns {Promise<StylelintConfig | null>}
 */
export default async function printConfig({
	cwd = process.cwd(),
	code,
	config,
	configBasedir,
	configFile,
	globbyOptions,
	files,
}) {
	const isCodeNotFile = code !== undefined;
	const filePath = files && files[0];

	if (!files || files.length !== 1 || !filePath || isCodeNotFile) {
		return Promise.reject(
			new Error('The --print-config option must be used with exactly one file path.'),
		);
	}

	if (isDynamicPattern(filePath)) {
		return Promise.reject(new Error('The --print-config option does not support globs.'));
	}

	return (
		(await resolveConfig(filePath, {
			cwd: toPath(globbyOptions?.cwd) || cwd,
			config,
			configBasedir,
			configFile,
		})) || null
	);
}
