FlowerStore

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

namespace RegularExam
{
    internal class FlowerStore
    {
        private string name;
        private List<Flower> flowers;

        public FlowerStore(string name)
        {
            Name = name;
            flowers = new List<Flower>();
        }

        public string Name
        {
            get { return name; }
            set
            {
                if (value.Length < 6)
                {
                    throw new ArgumentException("Invalid flower store name!");
                }
                name = value;
            }
        }

        public void AddFlower(Flower flower)
        {
            flowers.Add(flower);
        }

        public bool SellFlower(Flower flower)
        {
            foreach (Flower checkFlower in flowers)
            {
                if (checkFlower.Type == flower.Type && checkFlower.Color == flower.Color && checkFlower.Price == flower.Price)
                {
                    flowers.Remove(checkFlower);
                    return true;
                }
            }
            return false;
        }

        public double CalculateTotalPrice()
        {
            return flowers.Select(e => e.Price).Sum();
        }

        public Flower GetFlowerWithHighestPrice()
        {
            return flowers.OrderByDescending(e => e.Price).First();
        }

        public Flower GetFlowerWithLowestPrice()
        {
            return flowers.OrderBy(e => e.Price).First();
        }

        public void RenameFlowerStore(string newName)
        {
            Name = newName;
        }

        public void SellAllFlowers()
        {
            flowers.Clear();
        }

        public override string ToString()
        {
            var sb = new StringBuilder();

            if (flowers.Count() > 0)
            {
                sb.Append($"Flower store {name} has {flowers.Count} flower/s:\n");
                sb.Append(string.Join("\n", flowers));
            }
            else
            {
                sb.Append($"Flower store {name} has no available flowers.");

            }
            return sb.ToString();
        }
    }
}