using ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Runtime;

namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Tests.Runtime;

/// <summary>
///     <see cref="IGalaxyAckCredentialResolver"/> test double that resolves every acknowledge to one fixed
///     credential (or refuses all), recording the key ids it was asked about.
/// </summary>
internal sealed class FixedAckCredentialResolver : IGalaxyAckCredentialResolver
{
    private readonly GalaxyAckCredential? _credential;

    private FixedAckCredentialResolver(GalaxyAckCredential? credential) => _credential = credential;

    /// <summary>Gets the key ids the driver resolved for, in order.</summary>
    public List<string?> RequestedKeyIds { get; } = [];

    /// <summary>A resolver that always returns a fallback account <c>ACKDOM\ack-op</c> / <c>pw</c>.</summary>
    public static FixedAckCredentialResolver Fallback() =>
        new(new GalaxyAckCredential("ack-op", "ACKDOM", "pw", GalaxyAckCredentialSource.Fallback));

    /// <summary>A resolver that refuses every acknowledge.</summary>
    public static FixedAckCredentialResolver RefuseAll() => new(null);

    /// <inheritdoc />
    public Task<GalaxyAckCredentialResolution> ResolveAsync(string? apiKeyId, CancellationToken cancellationToken)
    {
        RequestedKeyIds.Add(apiKeyId);
        return Task.FromResult(_credential is null
            ? GalaxyAckCredentialResolution.Refused("test refusal")
            : GalaxyAckCredentialResolution.Resolved(_credential));
    }
}