#if STELLAOPS_CRYPTO_SODIUM
using System;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using Xunit;

namespace StellaOps.Cryptography.Tests;

public class LibsodiumCryptoProviderTests
{
    [Fact]
    public async Task LibsodiumProvider_SignsAndVerifiesEs256()
    {
        var provider = new LibsodiumCryptoProvider();
        using var ecdsa = ECDsa.Create(ECCurve.NamedCurves.nistP256);
        var parameters = ecdsa.ExportParameters(includePrivateParameters: true);

        var signingKey = new CryptoSigningKey(
            new CryptoKeyReference("libsodium-key"),
            SignatureAlgorithms.Es256,
            privateParameters: in parameters,
            createdAt: DateTimeOffset.UtcNow);

        provider.UpsertSigningKey(signingKey);

        var signer = provider.GetSigner(SignatureAlgorithms.Es256, signingKey.Reference);

        var payload = Encoding.UTF8.GetBytes("libsodium-test");
        var signature = await signer.SignAsync(payload);

        Assert.True(signature.Length > 0);

        var verified = await signer.VerifyAsync(payload, signature);
        Assert.True(verified);
    }
}
#endif