using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;

namespace EnVisage.Models
{
    public class ClientModel : IBaseModel<Client>
    {
        public Guid Id { get; set; }

        [Required]
        [MaxLength(100, ErrorMessage = "Client name should not exceed 100 characters")]
        public string Name { get; set; }

        public Guid? GLAccountId { get; set; }

        [Display(Name = "Number")]
        public string ClientNumber { get; set; }

        [Display(Name = "Number of Projects")]
        public int ProjectsCount { get; set; }

        [Required(ErrorMessage = "Business Unit is required")]
        public IList<Guid> CompanyId { get; set; }

        /// <summary>
        /// Copies data from model to DAL object.
        /// </summary>
        /// <param name="dbObj">A target DAL object.</param>
        public void CopyTo(Client dbObj)
        {
            if (dbObj == null)
                throw new ArgumentNullException();

            dbObj.Name = Name;
            dbObj.GLAccountId = GLAccountId;
            dbObj.ClientNumber = ClientNumber;
        }
    }

    public class ClientApiModel
    {
        public Guid Id { get; set; }
        public Guid? GLAccountId { get; set; }
        public string Name { get; set; }
        public string ClientNumber { get; set; }

        #region Constructors

        public ClientApiModel()
        {

        }

        public ClientApiModel(ClientListModel client)
            : this()
        {
            if (client == null)
                throw new ArgumentNullException("client");

            Id = client.Id;
            GLAccountId = client.GLAccountId;
            Name = client.Name;
            ClientNumber = client.ClientNumber;
        }

        #endregion
    }

	/// <summary>
	/// An UI representation of client to be displayed as list items
	/// </summary>
	public class ClientListModel: ClientApiModel
	{
		public int ProjectsCount { get; set; }
		public IList<string> Companies { get; set; }
		public string GlAccount { get; set; }
	}

}