Order.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _6270PersonalAttempt
{
    /// <summary>
    /// Processing totals here..
    /// </summary>
    class Order
    {
        public List<PhotoLineItem> lines;
        private List<Discount> discounts;
        private List<Fee> fees;
        public Order()
        {
            lines = new List<PhotoLineItem>();
            discounts = new List<Discount>();
            fees = new List<Fee>();
        }

        public List<PhotoLineItem> Lines
        {
            get { return lines; }
        }

        public List<Discount> Discount
        {
            get { return discounts; }
        }

        public List<Fee> Fee
        {
            get { return fees; }
        }

        //tried using :base() but it still gave an error so i took the lazy (bad) way out and copied the constructor.
        public Order(PhotoLineItem line, Discount discount)
        {
            lines = new List<PhotoLineItem>();
            discounts = new List<Discount>();
            //fees = new List<Fee>();
            lines.Add(line);
            discounts.Add(discount);
           // fees.Add(fee);
        }
        public void addLine(PhotoLineItem item)
        {
            if (item.LineRate <= 0)
            {
                throw new System.ArgumentException("Parameter not entered", "lineRate");
            }
            lines.Add(item);
        }
        public void addDiscount(Discount discount)
        {
            if (discount.getTotalDiscount() > 0)
            {
                discounts.Add(discount);
            }
        }
        public void addFee(Fee fee)
        {
            if (fee.Amount > 0)
                fees.Add(fee);
        }

        public decimal getTotal()
        {
            decimal total = 0;
            foreach (var line in lines)
            {
                total += line.Quantity * line.LineRate;
            }
           // /foreach (var fee in fees)
            //{
            //    total += fee.Amount;
           // }
            if (total <= 35)
            {
                foreach (var discount in discounts)
                {
                    total += discount.getTotalDiscount();
                }
            }

            return total;
        }

        public decimal getTotal2()
        {
            decimal total = 0;
            foreach (var line in lines)
            {
                total += line.Quantity * line.LineRate2;
            }
            // /foreach (var fee in fees)
            //{
            //    total += fee.Amount;
            // }
            if (total <= 35)
            {
                foreach (var discount in discounts)
                {
                    total += discount.getTotalDiscount();
                }
            }

            return total;
        }
    }
}