using OtpNet;

namespace EnvelopeGenerator.Application.Common.Extensions;

/// <summary>
/// 
/// </summary>
public static class StringExtension
{
    /// <summary>
    /// 
    /// </summary>
    /// <param name="totp"></param>
    /// <param name="secret"></param>
    /// <returns></returns>
    public static bool IsValidTotp(this string totp, string secret)
    {
        var secret_bytes = Base32Encoding.ToBytes(secret);
        var secret_totp = new Totp(secret_bytes);
        return secret_totp.VerifyTotp(totp, out _, VerificationWindow.RfcSpecifiedNetworkDelay);
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="seperator"></param>
    /// <param name="values"></param>
    /// <returns></returns>
    public static string Join(this IEnumerable<string> values, string seperator) => string.Join(seperator, values);
}