namespace e_suite.Nuget.PasswordHasher;

/// <summary>
/// Specifies options for password hashing.
/// </summary>
public class CustomPasswordHasherOptions
{
    public CustomPasswordHasherOptions()
    {
        PepperDictionary = new Dictionary<int, byte[]>
        {
            {0, Array.Empty<byte>()}
        };
    }
    /// <summary>
    /// Gets or sets the compatibility mode used when hashing passwords.
    /// </summary>
    /// <value>
    /// The compatibility mode used when hashing passwords.
    /// </value>
    /// <remarks>
    /// The default compatibility mode is 'ASP.NET Identity version 3'.
    /// </remarks>
    public CustomPasswordHasherMethod CompatibilityMode { get; set; } = CustomPasswordHasherMethod.formulaThree;

    /// <summary>
    /// Gets or sets the number of iterations used when hashing passwords using PBKDF2.
    /// </summary>
    /// <value>
    /// The number of iterations used when hashing passwords using PBKDF2.
    /// </value>
    /// <remarks>
    /// This value is only used when the compatibility mode is set to 'V3'.
    /// The value must be a positive integer. The default value is 10,000.
    /// </remarks>
    public int IterationCount { get; set; } = 10000;

    /// <summary>
    /// Add pepper byte arrays to apply to the password before hashing.
    /// The pepper with the highest index will be used for hashing new passwords.
    /// Older peppers added to the list allow verification against older hashed passwords.
    /// Index 0 is reserved to indicate that no pepper is used.
    /// </summary>
    public Dictionary<int, byte[]> PepperDictionary { get; }
}