using System;
using System.Collections.Generic;

namespace Tanshu.Accounts.Entities
{
    public class Inventory
    {
        public Inventory()
        {
            InventoryModifier = new List<InventoryModifier>();
        }

        public Guid InventoryID { get; set; }
        public Kot Kot { get; set; }
        public int SortOrder { get; set; }
        public Product Product { get; set; }
        public decimal Quantity { get; set; }
        public decimal Price { get; set; }
        public bool IsHappyHour { get; set; }
        public decimal ServiceCharge { get; set; }
        public bool IsScTaxable { get; set; }
        public decimal ServiceTaxRate { get; set; }
        public decimal VatRate { get; set; }
        public Tax ServiceTax { get; set; }
        public Tax Vat { get; set; }
        public decimal Discount { get; set; }

        public virtual List<InventoryModifier> InventoryModifier { get; set; }

        public virtual string EffectiveName
        {
            get
            {
                return IsHappyHour ? string.Format("H H {0}", Product.FullName) : Product.FullName;
            }
            set { }
        }
        public virtual decimal EffectivePrice
        {
            get
            {
                return IsHappyHour ? 0 : Price;
            }
            set { }
        }
        public virtual decimal Amount
        {
            get
            {
                if (IsScTaxable)
                    return Quantity * EffectivePrice * (1 - Discount) * (1 + ServiceCharge) * (1 + ServiceTaxRate + VatRate);
                return Quantity * EffectivePrice * (1 - Discount) * (1 + ServiceCharge + ServiceTaxRate + VatRate);
            }
            set { }
        }

        public virtual decimal ServiceTaxAmount
        {
            get
            {
                if (IsScTaxable)
                    return Quantity * EffectivePrice * (1 - Discount) * (1 + ServiceCharge) * ServiceTaxRate;
                return Quantity * EffectivePrice * (1 - Discount) * ServiceTaxRate;
            }
        }

        public virtual decimal VatAmount
        {
            get
            {
                if (IsScTaxable)
                    return Quantity * EffectivePrice * (1 - Discount) * (1 + ServiceCharge) * VatRate;
                return Quantity * EffectivePrice * (1 - Discount) * VatRate;
            }
        }

        public virtual decimal ServiceChargeAmount
        {
            get
            {
                return Quantity * EffectivePrice * (1 - Discount) * ServiceCharge;
            }
        }

        public virtual decimal DiscountAmount
        {
            get
            {
                return Quantity * EffectivePrice * Discount;
            }
        }

        public virtual decimal Net
        {
            get
            {
                return Quantity * EffectivePrice * (1 - Discount);
            }
        }
    }
}