using NHibernate.Mapping.ByCode;
using NHibernate.Mapping.ByCode.Conformist;
using System;
using System.Collections.Generic;

namespace Tanshu.Accounts.Entities
{
    public class Product
    {
        public virtual Guid ProductID { get; set; }
        public virtual string Name { get; set; }
        public virtual string Units { get; set; }
        public virtual ProductGroup ProductGroup { get; set; }
        public virtual Tax Vat { get; set; }
        public virtual Tax ServiceTax { get; set; }
        public virtual decimal ServiceCharge { get; set; }
        public virtual bool IsScTaxable { get; set; }
        public virtual decimal Price { get; set; }
        public virtual bool HasHappyHour { get; set; }
        public virtual bool IsActive { get; set; }
        public virtual bool IsNotAvailable { get; set; }
        public virtual int SortOrder { get; set; }
        public virtual decimal Quantity { get; set; }
        public virtual IList<Inventory> Inventories { get; set; }

        public virtual string FullName
        {
            get
            {
                return Units == string.Empty ? Name : string.Format("{0} ({1})", Name, Units);
            }
            set { }
        }
    }
    public class ProductMap : ClassMapping<Product>
    {

        public ProductMap()
        {
            Table("Products");
            Schema("dbo");
            Lazy(true);
            Id(x => x.ProductID, map => map.Generator(Generators.GuidComb));
            Property(x => x.Name, map => { map.NotNullable(true); map.UniqueKey("UQ_NameUnits"); });
            Property(x => x.Units, map => { map.NotNullable(true); map.UniqueKey("UQ_NameUnits"); });
            Property(x => x.ServiceCharge, map => map.NotNullable(true));
            Property(x => x.IsScTaxable, map => map.NotNullable(true));
            Property(x => x.Price, map => map.NotNullable(true));
            Property(x => x.HasHappyHour, map => map.NotNullable(true));
            Property(x => x.IsActive, map => map.NotNullable(true));
            Property(x => x.IsNotAvailable, map => map.NotNullable(true));
            Property(x => x.SortOrder, map => map.NotNullable(true));
            Property(x => x.Quantity, map => map.NotNullable(true));
            Property(x => x.FullName, map =>
            {
                map.Formula("CASE WHEN Units = '' THEN Name ELSE Name + ' (' + Units + ')' END");
            });
            
            ManyToOne(x => x.ProductGroup, map => { map.Column("ProductGroupID"); map.Cascade(Cascade.None); });
            ManyToOne(x => x.ServiceTax, map => { map.Column("ServiceTaxID"); map.Cascade(Cascade.None); });
            ManyToOne(x => x.Vat, map => { map.Column("VatID"); map.Cascade(Cascade.None); });
            Bag(x => x.Inventories, colmap => { colmap.Key(x => x.Column("ProductID")); colmap.Inverse(true); }, map => { map.OneToMany(); });
        }
    }

}