CoffeeShop.cs

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

namespace RegularExam_UASD
{
    internal class CoffeeShop
    {
        //полета -> характеристики
        private string name;
        private List<Coffee> coffees;

        public CoffeeShop()
        {
            //нов празен обект
            //name = null
            //coffees = null
        }

        public CoffeeShop(string name)
        {
            //нов празен обект
            this.name = name;
            this.coffees = new List<Coffee>();
        }

        public string Name
        {
           get
           {
                return name;
           }
           set
            {
                name = value;
            }
        }

        public List<Coffee> Coffees
        {
            get
            {
                return coffees;
            }
            set
            {
                coffees = value;
            }
        }

        public void AddCoffee(string name, double price)
        {
            Coffee coffee = new Coffee(name, price);
            coffees.Add(coffee);
        }

        public double AveragePriceInRange(double start, double end)
        {
            //кафета с цени между start и end
            int count = 0;
            double sum = 0;
            foreach(Coffee coffee in coffees)
            {
                if (coffee.Price >= start && coffee.Price <= end)
                {
                    count++;
                    sum += coffee.Price;
                }
            }

            //сумата от цената на кафетата
            //брой на кафетата
            return sum / count;
        }


        public List<string> RemoveCoffeesByPrice(double price)
        {
            List<String> leftCoofees = new List<string>(); // имената на кафетата с по-малка цена от дадената
            foreach (Coffee coffee in coffees)
            {
                if (coffee.Price < price)
                {
                    leftCoofees.Add(coffee.Type);
                }
            }
            return leftCoofees;
        }

        public List<Coffee> SortAscendingByType()
        {
            return coffees.OrderBy(coffee => coffee.Type).ToList();
        }

        public List<Coffee> SortDescendingByPrice()
        {
            return coffees.OrderByDescending(coffee => coffee.Price).ToList();
        }

        public bool CheckCoffeeIsInCoffeeShop(string type)
        {
            //true -> ако имаме такова кафе
            //false -> ако нямаме такова кафе
            foreach(Coffee coffee in coffees)
            {
                if (coffee.Type == type)
                {
                    return true;
                }
            }

            return false;
        }

        public string[] ProvideInformationAboutAllCoffees()
        {
            List<string> infoList = new List<string>();
            foreach (Coffee coffee in coffees)
            {
                infoList.Add(coffee.ToString());
            }

            return infoList.ToArray();
        }

    }
}