// Copyright (c) 2024 yellows111
//
//  Permission is hereby granted, free of charge, to any person obtaining a 
//  copy of this software and associated documentation files (the "Software"), 
//  to deal in the Software without restriction, including without limitation 
//  the rights to use, copy, modify, merge, publish, distribute, sublicense, 
//  and/or sell copies of the Software, and to permit persons to whom the 
//  Software is furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in 
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
//  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
//  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
//  DEALINGS IN THE SOFTWARE.

// natives
const Process = require("process"); 
const Filesystem = require("fs");

// required vars

var rootPrefix = "/";
if(process.env["VPREFIX"]) {
	rootPrefix = process.env["VPREFIX"];
}
rootPrefix = rootPrefix.substring(0, rootPrefix.length - 1);
var targetDomain = "localhost";
if(process.env["DOMAIN"]) {
	targetDomain = process.env["DOMAIN"];
}
var outputTemp = "";

function renderSiteMap() {
	return ( /* eslint-disable indent */
`<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
${outputTemp}</urlset>
`
	); /* eslint-enable indent */
}

function makeSitemapChunk(file, inputDir) {
	outputTemp = outputTemp.concat( /* eslint-disable indent */
`	<url>
		<loc>https://${targetDomain}${rootPrefix}${file.replace(inputDir, "").replace(".md", ".html")}</loc>
		<lastmod>${Filesystem.statSync(file).mtime.toISOString().substring(0, 10)}</lastmod>
	</url>
`
	); /* eslint-enable indent */
}

if(require.main === module) {
	const fileList = Process.argv.slice(3);
	const currentDir = Process.argv[2];
	for (let file of fileList) {
		makeSitemapChunk(file, currentDir);
	}
	Filesystem.writeFileSync(`${Process.argv[2]}/sitemap.xml`, renderSiteMap());
}

module.exports = function(fileList, filter) {
	for (let file of fileList) {
		makeSitemapChunk(file, filter);
	}
	return renderSiteMap();
}