using OtpNet;
using System.Globalization;

namespace EnvelopeGenerator.Application.Configurations;

/// <summary>
/// 
/// </summary>
public class TotpSmsParams
{
    /// <summary>
    /// The unit is second.
    /// </summary>
    public int TotpStep { get; init; } = 90;

    /// <summary>
    /// Default value is 'Ihr 2FA-Passwort lautet {0}. Gültig bis {1}'
    /// </summary>
    public string Format { get; init; } = "Ihr 2FA-Passwort lautet {0}. Gültig bis {1}";
    
    /// <summary>
    /// 
    /// </summary>
    public ExpirationHandler Expiration { get; init; } = new();

    /// <summary>
    /// Default value is VerificationWindow.RfcSpecifiedNetworkDelay
    /// </summary>
    public VerificationWindow? TotpVerificationWindow { get; private init; } = VerificationWindow.RfcSpecifiedNetworkDelay;

    private IEnumerable<int>? _tvwParams;

    /// <summary>
    /// 
    /// </summary>
    public IEnumerable<int>? TotpVerificationWindowParams
    {
        get => _tvwParams;
        init
        {
            _tvwParams = value;
            if(_tvwParams is not null)
                TotpVerificationWindow = new(previous: _tvwParams.ElementAtOrDefault(0), future: _tvwParams.ElementAtOrDefault(0));
        }
    }

    /// <summary>
    /// 
    /// </summary>
    public class ExpirationHandler
    {
        /// <summary>
        /// Default value is 'e{0}_r{1}_sms_code_expiration'
        /// </summary>
        public string CacheKeyFormat { get; init; } = "e{0}_r{1}_sms_code_expiration";

        /// <summary>
        /// Default value is HH:mm:ss
        /// </summary>
        public string Format { get; init; } = "HH:mm:ss";

        /// <summary>
        /// Default value is 'de-DE'
        /// </summary>
        public string CultureName
        {
            get => _cultureInfo.Name;
            init => _cultureInfo = new(value);
        }

        /// <summary>
        /// Default value is 'de-DE'
        /// </summary>
        private CultureInfo _cultureInfo = new("de-DE");

        /// <summary>
        /// Default value is 'de-DE'
        /// </summary>
        public CultureInfo CultureInfo => _cultureInfo;
    }
}