'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var path = _interopDefault(require('path'));
var fs = _interopDefault(require('fs'));
var index$1 = require('../fast-glob/index.js');
var index = require('../ignore/index.js');
var index$2 = require('./node_modules/pify/index.js');
var index$3 = require('./node_modules/slash/index.js');

const DEFAULT_IGNORE = [
	'**/node_modules/**',
	'**/bower_components/**',
	'**/flow-typed/**',
	'**/coverage/**',
	'**/.git'
];

const readFileP = index$2.default(fs.readFile);

const mapGitIgnorePatternTo = base => ignore => {
	if (ignore.startsWith('!')) {
		return '!' + path.posix.join(base, ignore.slice(1));
	}

	return path.posix.join(base, ignore);
};

const parseGitIgnore = (content, options) => {
	const base = index$3.default(path.relative(options.cwd, path.dirname(options.fileName)));

	return content
		.split(/\r?\n/)
		.filter(Boolean)
		.filter(line => line.charAt(0) !== '#')
		.map(mapGitIgnorePatternTo(base));
};

const reduceIgnore = files => {
	return files.reduce((ignores, file) => {
		ignores.add(parseGitIgnore(file.content, {
			cwd: file.cwd,
			fileName: file.filePath
		}));
		return ignores;
	}, index.default());
};

const getIsIgnoredPredecate = (ignores, cwd) => {
	return p => ignores.ignores(index$3.default(path.relative(cwd, p)));
};

const getFile = (file, cwd) => {
	const filePath = path.join(cwd, file);
	return readFileP(filePath, 'utf8')
		.then(content => ({
			content,
			cwd,
			filePath
		}));
};

const getFileSync = (file, cwd) => {
	const filePath = path.join(cwd, file);
	const content = fs.readFileSync(filePath, 'utf8');

	return {
		content,
		cwd,
		filePath
	};
};

const normalizeOptions = (options = {}) => {
	const ignore = options.ignore || [];
	const cwd = options.cwd || process.cwd();
	return {ignore, cwd};
};

var gitignore = options => {
	options = normalizeOptions(options);

	return index$1.default('**/.gitignore', {
		ignore: DEFAULT_IGNORE.concat(options.ignore),
		cwd: options.cwd
	})
		.then(paths => Promise.all(paths.map(file => getFile(file, options.cwd))))
		.then(files => reduceIgnore(files))
		.then(ignores => getIsIgnoredPredecate(ignores, options.cwd));
};

var sync = options => {
	options = normalizeOptions(options);

	const paths = index$1.default.sync('**/.gitignore', {
		ignore: DEFAULT_IGNORE.concat(options.ignore),
		cwd: options.cwd
	});
	const files = paths.map(file => getFileSync(file, options.cwd));
	const ignores = reduceIgnore(files);

	return getIsIgnoredPredecate(ignores, options.cwd);
};
gitignore.sync = sync;

exports.__moduleExports = gitignore;
exports.default = gitignore;
exports.sync = sync;
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