using System;
using System.Data.Entity;
using System.Linq;
using EnVisage.Models;

namespace EnVisage.Code.BLL
{
    public class UserQuickLinkManager : ManagerBase<UserQuickLink, UserQuickLinkModel>
    {
        public UserQuickLinkManager(EnVisageEntities dbContext)
            : base(dbContext)
        {
        }

        protected override UserQuickLink InitInstance()
        {
            return new UserQuickLink { Id = Guid.NewGuid() };
        }

        protected override UserQuickLink RetrieveReadOnlyById(Guid key)
        {
            return DataTable.AsNoTracking().FirstOrDefault(t => t.Id == key);
        }

        public override DbSet<UserQuickLink> DataTable
        {
            get
            {
                return DbContext.UserQuickLinks;
            }
        }

        public UserQuickLinkModel GetUserQuickLinkById(Guid? id)
        {
            if (!id.HasValue)
                return null;

            return UserQuickLinkModelQueryBase.FirstOrDefault(x => x.Id == id);
        }

        #region Queries

        private IQueryable<UserQuickLinkModel> UserQuickLinkModelQueryBase
        {
            get
            {
                var query = DataTable.Select(x => new UserQuickLinkModel()
                {
                    Id = x.Id,
                    Name = x.Name,
                    UserId = x.UserId,
                    Url = x.Url,
                    PageState = x.PageState
                });

                return query;
            }
        }

        #endregion
    }
}