using System;
using System.Collections.Generic;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.Entities.Auth;
using NHibernate.Mapping.ByCode.Conformist;
using NHibernate.Mapping.ByCode;

namespace Tanshu.Accounts.Entities
{
    public class Voucher
    {
        public Voucher()
        {
            Kots = new List<Kot>();
            Settlements = new List<VoucherSettlement>();
        }

        public Voucher(User user, Customer customer)
            : this()
        {
            this.User = user;
            VoucherType = VoucherType.Regular;
            Customer = customer;
        }

        public Voucher(User user, Customer customer, FoodTable table, bool printed, bool isVoid, string narration)
            : this(user, customer)
        {
            Table = table;
            Printed = printed;
            Void = isVoid;
            Narration = narration;
            VoucherType = VoucherType.Regular;
        }

        public virtual Guid VoucherID { get; set; }

        protected DateTime _date;
        public virtual DateTime Date { get { return _date; } }

        public virtual int Pax { get; set; }
        public virtual User User { get; set; }
        protected DateTime _creationDate;
        public virtual DateTime CreationDate { get { return _creationDate; } }
        protected DateTime _lastEditDate;
        public virtual DateTime LastEditDate { get { return _lastEditDate; } }
        protected int? _billID;
        public virtual int? BillID { get { return _billID; } }
        public virtual FoodTable Table { get; set; }
        public virtual Customer Customer { get; set; }
        public virtual IList<VoucherSettlement> Settlements { get; set; }
        public virtual string Narration { get; set; }
        public virtual bool Void { get; set; }
        public virtual string VoidReason { get; set; }
        public virtual bool Printed { get; set; }
        public virtual VoucherType VoucherType { get; set; }
        protected int _kotID;
        public virtual int KotID { get { return _kotID; } }
        public virtual IList<Kot> Kots { get; set; }
        public virtual IList<Reprint> Reprints { get; set; }
        public virtual string FullBillID
        {
            get
            {
                if (BillID.HasValue)
                {
                    switch (VoucherType)
                    {
                        case VoucherType.NoCharge:
                            return "NC-" + BillID.Value.ToString();
                        case VoucherType.Staff:
                            return "ST-" + BillID.Value.ToString();
                        case VoucherType.TakeAway:
                        case VoucherType.Regular:
                        default:
                            return (BillID.Value / 10000).ToString() + "-" + (BillID.Value % 10000).ToString();
                    }
                }
                else
                {
                    return "K-" + KotID.ToString();
                }
            }
        }
    }

    public class VoucherMap : ClassMapping<Voucher>
    {
        public VoucherMap()
        {
            Table("Vouchers");
            Schema("dbo");
            Lazy(true);
            SqlInsert(@"exec VoucherInsert ?,?,?,?,?,?,?,?,?,?");
            SqlUpdate(@"exec VoucherUpdate ?,?,?,?,?,?,?,?,?,?");
            Id(x => x.VoucherID, map => map.Generator(Generators.GuidComb));
            Property(x => x.Date, map =>
            {
                map.NotNullable(true);
                map.Generated(PropertyGeneration.Always);
                map.Access(Accessor.NoSetter);
            });
            Property(x => x.Pax);
            Property(x => x.VoucherType, map =>
            {
                map.NotNullable(true);
                map.UniqueKey("UQ_BillID_VoucherType");
            });
            Property(x => x.Narration);
            Property(x => x.CreationDate, map =>
            {
                map.NotNullable(true);
                map.Generated(PropertyGeneration.Insert);
                map.Access(Accessor.NoSetter);
            });
            Property(x => x.LastEditDate, map =>
            {
                map.NotNullable(true);
                map.Generated(PropertyGeneration.Always);
                map.Access(Accessor.NoSetter);
            });
            Property(x => x.BillID, map =>
            {
                map.Generated(PropertyGeneration.Always);
                map.Access(Accessor.NoSetter);
                map.UniqueKey("UQ_BillID_VoucherType");
            });
            Property(x => x.Void, map => map.NotNullable(true));
            Property(x => x.VoidReason);
            Property(x => x.Printed, map => map.NotNullable(true));
            Property(x => x.KotID, map =>
            {
                map.NotNullable(true);
                map.Generated(PropertyGeneration.Insert);
                map.Access(Accessor.NoSetter);
            });
            ManyToOne(x => x.User, map =>
            {
                map.Column("UserID");
                map.NotNullable(true);
                map.Cascade(Cascade.None);
            });
            ManyToOne(x => x.Table, map =>
            {
                map.Column("TableID");
                map.NotNullable(true);
                map.Cascade(Cascade.None);
            });

            ManyToOne(x => x.Customer, map =>
            {
                map.Column("CustomerID");
                map.NotNullable(true);
                map.Cascade(Cascade.None);
            });

            Bag(x => x.Kots, colmap => { colmap.Key(x => x.Column("VoucherID")); colmap.Inverse(true); colmap.OrderBy(o => o.Date); }, map => { map.OneToMany(); });
            Bag(x => x.Reprints, colmap => { colmap.Key(x => x.Column("VoucherID")); colmap.Inverse(true); }, map => { map.OneToMany(); });
            Bag(x => x.Settlements, colmap => { colmap.Key(x => x.Column("VoucherID")); colmap.Inverse(true); }, map => { map.OneToMany(); });
        }
    }
}