// NOTICE: This file is generated by Rollup. To modify it,
// please instead edit the ESM counterpart and rebuild with Rollup (npm run build).
'use strict';

const node_fs = require('node:fs');
const node_path = require('node:path');
const ignore = require('ignore');
const constants = require('../constants.cjs');

/**
 * @typedef {import('stylelint').LinterOptions} LinterOptions
 *
 * @param {Pick<LinterOptions, 'ignorePath' | 'ignorePattern'> & { cwd: string }} options
 * @returns {import('ignore').Ignore}
 */
function getFileIgnorer({ ignorePath, ignorePattern, cwd }) {
	const ignorer = ignore.default();
	const ignorePaths = [ignorePath || []].flat();

	if (ignorePaths.length === 0) {
		ignorePaths.push(constants.DEFAULT_IGNORE_FILENAME);
	}

	for (const ignoreFilePath of ignorePaths) {
		const absoluteIgnoreFilePath = node_path.isAbsolute(ignoreFilePath)
			? ignoreFilePath
			: node_path.resolve(cwd, ignoreFilePath);

		if (!node_fs.existsSync(absoluteIgnoreFilePath)) continue;

		const ignoreText = node_fs.readFileSync(absoluteIgnoreFilePath, {
			// utf must remain lowercased to hit the fast path
			// see nodejs/node#49888
			encoding: 'utf8',
			flag: 'r',
		});

		ignorer.add(ignoreText);
	}

	if (ignorePattern) ignorer.add(ignorePattern);

	return ignorer;
}

module.exports = getFileIgnorer;
