using System;

using System.IO;

using System.Linq;

using System.Text.RegularExpressions;

var matchEx = new[] { ".htm", ".html" };

var files = Directory.GetFiles(AppContext.BaseDirectory, "*.*", SearchOption.AllDirectories).Where(x => matchEx.Any(y => x.EndsWith(y, StringComparison.OrdinalIgnoreCase)));

if (files.Any())

{

foreach (var file in files)

{

var fileName = Path.GetFileName(file);

var source = File.ReadAllText(file);

var content = source;

content = Regex.Replace(content, @"\n|\t", " ");

content = Regex.Replace(content, @">\s+<", "><").Trim();

content = Regex.Replace(content, @"\s{2,}", " ");

var span = content.AsSpan();

var umiVerIndex = span.IndexOf("<script> //! umi version:");

if (umiVerIndex > 0)

{

var umiVerAfterStr = span[umiVerIndex..];

var scriptEnd = "</script>";

var umiVerIndexLast = umiVerAfterStr.IndexOf(scriptEnd);

if (umiVerIndexLast < 0)

{

Console.WriteLine("Invalid file, fileName: {fileName}");

continue;

}

else

{

content = content.Substring(0, umiVerIndex) + umiVerAfterStr[(umiVerIndexLast + scriptEnd.Length)..].ToString();

}

}

if (content != source)

{

File.WriteAllText(file, content);

Console.WriteLine($"Minify, fileName: {fileName}");

}

else

{

Console.WriteLine($"Not changed, fileName: {fileName}");

}

}

}

else

{

Console.WriteLine("File not found.");

}

Console.WriteLine("Complete.");