using System;
using Castle.ActiveRecord;

namespace ECOEarth.Web.Domain
{
    [ActiveRecord]
    public class OrderItem : ActiveRecordBase<OrderItem>
    {
        public OrderItem(string productName, double basePrice, double shipping, bool vatQualifying)
        {
            this.productName = productName;
            this.basePrice = basePrice;
            this.shippingPerItem = shipping;
            this.vatQualifying = vatQualifying;
        }

        public OrderItem()
        {
            
        }

        private int orderItemId;
        [PrimaryKey]
        public int OrderItemId
        {
            get { return orderItemId; }
            set { orderItemId = value; }
        }

        private string productId;
        private string productName;
        private int quantity =1;
        private bool vatQualifying;

        public virtual bool VatQualifying
        {
            get { return vatQualifying; }
        }

        private double basePrice;
        private double shippingPerItem;

        public virtual string ProductId
        {
            get { return productId; }
            set { productId = value; }
        }

        [Property]
        public virtual string ProductName
        {
            get { return productName; }
            set { productName = value; }
        }

        [Property]
        public virtual int Quantity
        {
            get { return quantity; }
            set { quantity = value; }
        }

        [Property]
        public virtual double BasePrice
        {
            get { return basePrice; }
            set { basePrice = value; }
        }

        
        public virtual double ShippingPerItem
        {
            get
            {
                return shippingPerItem;
            }
            set
            {
                shippingPerItem = value;
            }
        }

        public virtual double Shipping
        {
            get
            {
                return ShippingPerItem*Quantity;
            }
        }

        public virtual double VAT
        {
            get
            {
                return this.VatQualifying ? Math.Round(this.Price*0.175d, 2) : 0d;
            }
        }

        public virtual double Price
        {
            get
            {
                return BasePrice*Quantity;
            }
        }

        public virtual void ChangeQuantity(int newQuantity)
        {

            if(newQuantity < 1) 
                throw new ArgumentOutOfRangeException("Quantity must be equal or greater than 1.");
            this.Quantity = newQuantity;
        }
    }
}