//using System;
//using System.Threading.Tasks;
//using zero.Core.Collections;
//using zero.Core.Entities;
//using zero.Core.Extensions;
//using Rc = Raven.Client;

//namespace zero.Core.Api
//{
//  public class PreviewApi : BackofficeApi, IPreviewApi
//  {
//    Preview Blueprint;

//    public PreviewApi(IStoreContext store, Preview blueprint) : base(store)
//    {
//      Blueprint = blueprint;
//    }


//    /// <inheritdoc />
//    public async Task<EntityResult<Preview>> Add<TEntity>(TEntity model) where TEntity : ZeroEntity
//    {
//      return await Update(null, model);
//    }


//    /// <inheritdoc />
//    public async Task<EntityResult<Preview>> Update<TEntity>(string id, TEntity model) where TEntity : ZeroEntity
//    {
//      Preview entity = id == null ? await GetById<Preview>(id) : Blueprint.Clone();
//      entity.Content = model;
//      entity.OriginalId = model.Id;
//      entity.Name = model.Name;

//      return await SaveModel(entity, meta: x =>
//      {
//        x[Rc.Constants.Documents.Metadata.Expires] = GetExpiry(model);
//      });
//    }


//    /// <inheritdoc />
//    public async Task<Preview> GetById(string id)
//    {
//      return await GetById<Preview>(id);
//    }


//    /// <summary>
//    /// Get preview expiration for a document
//    /// </summary>
//    DateTime GetExpiry(ZeroEntity model)
//    {
//      return DateTime.Now.AddHours(1);
//    }
//  }

//  public interface IPreviewApi
//  {
//    /// <summary>
//    /// Adds an entity to the preview collection. This will generate a preview with an id which can be used for the preview view.
//    /// </summary>
//    Task<EntityResult<Preview>> Add<TEntity>(TEntity model) where TEntity : ZeroEntity;

//    /// <summary>
//    /// Updates an entity in the preview collection. This will generate a preview with an id which can be used for the preview view.
//    /// </summary>
//    Task<EntityResult<Preview>> Update<TEntity>(string id, TEntity model) where TEntity : ZeroEntity;

//    /// <summary>
//    /// Get preview entity by Id
//    /// </summary>
//    Task<Preview> GetById(string id);
//  }
//}