using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using EnVisage.Models;
using System.Data.Entity;

namespace EnVisage.Code.BLL
{
    public class GLAccountManager : ManagerBase<GLAccount, GLAccountModel>
    {
        public GLAccountManager(EnVisageEntities dbContext) : base(dbContext)
        {
        }

        public override GLAccount Save(GLAccountModel model)
        {
            GLAccount glAccount = null;
            glAccount = base.Save(model);
            return glAccount;
        }

        public GLAccountModel LoadWithChildCollections(Guid? value, bool isReadOnly = true)
        {
            GLAccountModel result = (GLAccountModel)base.Load(value, isReadOnly);

			int? clientCount = 
				DbContext.GLAccountClientsCounts.Where(x => x.Id.Equals(value.Value))
				.Select(z => z.ClientCount).FirstOrDefault();

			int? expCatsCount =
				DbContext.GLAccountExpCatsCounts.Where(x => x.Id.Equals(value.Value))
				.Select(z => z.ExpCatCount).FirstOrDefault();

			result.ClientCount = clientCount.HasValue ? clientCount.Value : 0;
			result.ExpenditureCount = expCatsCount.HasValue ? expCatsCount.Value : 0;

			return result;
        }

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

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

        public override System.Data.Entity.DbSet<GLAccount> DataTable
        {
            get
            {
                return DbContext.GLAccounts;
            }
        }

		// SA. ENV-1171
		public IEnumerable<GLAccountListModel> GetListReadOnly()
		{
			IEnumerable<GLAccountListModel> qry = 
				(from ac in DbContext.GLAccounts
				join clcnt in DbContext.GLAccountClientsCounts on ac.Id equals clcnt.Id
				join expcnt in DbContext.GLAccountExpCatsCounts on ac.Id equals expcnt.Id
				select new GLAccountListModel()
				{
					Id = ac.Id,
					Name = ac.Name,
					GLNumber = ac.GLNumber,
					ExpenditureCount = expcnt.ExpCatCount.HasValue ? expcnt.ExpCatCount.Value : 0,
					ClientCount = clcnt.ClientCount.HasValue ? clcnt.ClientCount.Value : 0
				}).AsNoTracking();

			return qry;
		}
    }
}