using System.IO;
using System.Text;
using System.Threading.Tasks;
 
public static class FileHelper
{
    public static Encoding DefaultEncoding = Encoding.UTF8;

    public static async Task<byte[]> ReadFileContentAsBytesWithoutLocking(string filePath)
    {
        using var inStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
        using var memoryStream = new MemoryStream();
        await inStream.CopyToAsync(memoryStream);
        return memoryStream.ToArray();
    }

    public static async Task<string> ReadFileContentAsStringWithoutLocking(string filePath)
    {
        var byteArray = await ReadFileContentAsBytesWithoutLocking(filePath);
        return DefaultEncoding.GetString(byteArray);
    }

    public static void WriteBytesToFileWithoutLocking(string filePath, byte[] content)
    {
        using var outStream = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.ReadWrite);
        outStream.SetLength(0);
        outStream.Write(content, 0, content.Length);
        outStream.Flush();
    }

    public static void WriteStringToFileWithoutLocking(string filePath, string content)
    {
        WriteBytesToFileWithoutLocking(filePath, DefaultEncoding.GetBytes(content));
    }
}