namespace TaxBaik.Web.Services;

/// <summary>
/// Scoped in-memory token store for Blazor Server.
/// SOLID: Single Responsibility - Token lifecycle management
/// Avoids JS interop from DelegatingHandler (which runs on non-circuit thread)
/// </summary>
public interface ITokenStore
{
    string? AccessToken { get; set; }
    string? RefreshToken { get; set; }
    long? TokenExpiryTicks { get; set; }

    bool IsAccessTokenExpired();
    void Clear();
}

public class TokenStore : ITokenStore
{
    public string? AccessToken { get; set; }
    public string? RefreshToken { get; set; }
    public long? TokenExpiryTicks { get; set; }

    public bool IsAccessTokenExpired()
    {
        if (TokenExpiryTicks == null)
            return true;

        var expiryTime = new DateTime(TokenExpiryTicks.Value, DateTimeKind.Utc);
        return expiryTime <= DateTime.UtcNow;
    }

    public void Clear()
    {
        AccessToken = null;
        RefreshToken = null;
        TokenExpiryTicks = null;
    }
}