using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;
using EnVisage.Code;
using System.Web.Mvc;

namespace EnVisage.Models
{
    public class RoleModel : IBaseModel<AspNetRole>
    {
        //ENV-612 START
        public Guid Id { get { return _Id; } set { this._Id = value; if (value == Guid.Empty) this._isNew = true; else this._isNew = false; } }
        //public Guid Id { get; set;}
        public bool isNew { get { return _isNew; } }
        private bool _isNew = false;
        private Guid _Id = Guid.Empty;
        //ENV-746 END
        [Required]
        [Remote("IsUnique", "Role", HttpMethod = "POST", AdditionalFields="Id", ErrorMessage = "The role name entered is already in use please enter a different role name")]
        public string Name { get; set; }
        public int AspNetUsersCount { get; set; }

        /// <summary>
        /// Casts a <see cref="AspNetRole"/> obect to the object of type <see cref="RoleModel"/>.
        /// </summary>
        /// <param name="obj">A <see cref="AspNetRole"/> object.</param>
        /// <returns>A <see cref="RoleModel"/> object filled with data from db.</returns>
        public static explicit operator RoleModel(AspNetRole obj)
        {
            if (obj == null)
                return null;
            var model = new RoleModel
            {
                Id = Guid.Parse(obj.Id),
                Name = obj.Name,
                AspNetUsersCount = obj.AspNetUsers.Count
            };
            model.TrimStringProperties();
            return model;
        }
        /// <summary>
        /// Once a model is created a the generated guid needs to be
        /// applied to this model so that future saves of the projects and category’s
        /// have correct model ID.
        /// </summary>
        /// <param name="dbObj">A target DAL object.</param>
        public void setIDForNewModel(Guid g)
        {
            this._Id = g;
            this._isNew = true;
        }
        /// <summary>
        /// Copies data from model to DAL object.
        /// </summary>
        /// <param name="dbObj">A target DAL object.</param>
        public void CopyTo(AspNetRole dbObj)
        {
            if (dbObj == null)
                throw new ArgumentNullException();
            if (string.IsNullOrEmpty(dbObj.Id) && !Guid.Empty.Equals(Id))
                dbObj.Id = Id.ToString();
            dbObj.Name = Name;
        }
    }
}