// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
/* jshint node: true, browser: false */
/* eslint-env node */

/**
 * @copyright  2021 Andrew Nicols
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

module.exports = grunt => {
    /**
     * Generate ignore files (utilising thirdpartylibs.xml data)
     */
    const handler = function() {
        const path = require('path');
        const ComponentList = require(path.join(process.cwd(), '.grunt', 'components.js'));

        // An array of paths to third party directories.
        const thirdPartyPaths = ComponentList.getThirdPartyPaths();

        // Generate .eslintignore.
        const eslintIgnores = [
            '# Generated by "grunt ignorefiles"',
            // Do not ignore the .grunt directory.
            '!/.grunt',

            // Ignore all yui/src meta directories and build directories.
            '*/**/yui/src/*/meta/',
            '*/**/build/',
        ].concat(thirdPartyPaths);
        grunt.file.write('.eslintignore', eslintIgnores.join('\n') + '\n');

        // Generate .stylelintignore.
        const stylelintIgnores = [
            '# Generated by "grunt ignorefiles"',
            '**/yui/build/*',
            'theme/boost/style/moodle.css',
            'theme/classic/style/moodle.css',
            'jsdoc/styles/*.css',
        ].concat(thirdPartyPaths);
        grunt.file.write('.stylelintignore', stylelintIgnores.join('\n') + '\n');
    };

    grunt.registerTask('ignorefiles', 'Generate ignore files for linters', handler);

    return handler;
};
