namespace ZeroFramework.IdentityServer.API.Tenants
{
    public class CurrentTenant(ICurrentTenantAccessor currentTenantAccessor) : ICurrentTenant
    {
        private readonly ICurrentTenantAccessor _currentTenantAccessor = currentTenantAccessor;

        public virtual bool IsAvailable => Id.HasValue;

        public virtual Guid? Id => _currentTenantAccessor.Current?.TenantId;

        public string? Name => _currentTenantAccessor.Current?.Name;

        public IDisposable Change(Guid? id, string? name = null)
        {
            var parentScope = _currentTenantAccessor.Current;
            _currentTenantAccessor.Current = new TenantInfo(id, name);

            return new DisposeAction(() =>
            {
                _currentTenantAccessor.Current = parentScope;
            });
        }

        public class DisposeAction(Action action) : IDisposable
        {
            private readonly Action _action = action;

            void IDisposable.Dispose()
            {
                _action();
                GC.SuppressFinalize(this);
            }
        }
    }
}