using System;
using System.Numerics;
using System.Text;
using ArchestrAServices.Common;

namespace Asb.Base.V2;

public class SolutionParameters : ISolutionParameters
{
	public string DefaultAsbSolutionName => SvcUtilities.ReadKeyValue(string.Empty, "DefaultASBSolution");

	public string GetSolutionPassphrase(string asbSolution, Action<string> errorMessageHandler)
	{
		string passphrase;
		string solutionPassphrase = RegistryHandler.GetSolutionPassphrase(asbSolution, out passphrase);
		if (!string.IsNullOrEmpty(solutionPassphrase))
		{
			errorMessageHandler?.Invoke(solutionPassphrase);
		}
		return passphrase;
	}

	public byte[] GetSolutionCertificate(string asbSolution)
	{
		string s;
		if ((s = SvcUtilities.ReadKeyValue(asbSolution, "Certificate")) != null)
		{
			return Encoding.UTF8.GetBytes(s);
		}
		return null;
	}

	public string GetSolutionSaltValue(string asbSolution)
	{
		string result;
		if ((result = SvcUtilities.ReadKeyValue(asbSolution, "saltValue")) != null)
		{
			return result;
		}
		return null;
	}

	public string GetSolutionHashAlgorithm(string asbSolution)
	{
		string result;
		if ((result = SvcUtilities.ReadKeyValue(asbSolution, "HashAlgorthim")) != null)
		{
			return result;
		}
		return null;
	}

	public int GetSolutionPasswordIterations(string asbSolution)
	{
		string s;
		if ((s = SvcUtilities.ReadKeyValue(asbSolution, "passowordIterations")) != null && int.TryParse(s, out var result))
		{
			return result;
		}
		return 0;
	}

	public string GetSolutionInitialVector(string asbSolution)
	{
		string result;
		if ((result = SvcUtilities.ReadKeyValue(asbSolution, "initailizationVector")) != null)
		{
			return result;
		}
		return null;
	}

	public int GetSolutionKeySize(string asbSolution)
	{
		string s;
		if ((s = SvcUtilities.ReadKeyValue(asbSolution, "keySize")) != null && int.TryParse(s, out var result))
		{
			return result;
		}
		return 0;
	}

	public BigInteger GetSolutionPrime(string asbSolution)
	{
		string value;
		if ((value = SvcUtilities.ReadKeyValue(asbSolution, "Prime")) != null && BigInteger.TryParse(value, out var result))
		{
			return result;
		}
		return BigInteger.Zero;
	}

	public BigInteger GetSolutionGenerator(string asbSolution)
	{
		string value;
		if ((value = SvcUtilities.ReadKeyValue(asbSolution, "Generator")) != null && BigInteger.TryParse(value, out var result))
		{
			return result;
		}
		return BigInteger.Zero;
	}
}