namespace PizzaCalories
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    public class Pizza
    {
        private const int MAX_LENGTH = 15;
        private const int MIN_LENGTH = 1;
        private const int MAX_TOPPING_COUNT = 15;
        private const int MIN_TOPPING_COUNT = 0;

        private string name;
        private Dough dough;
        private readonly List<Topping> toppings;

        public Pizza(string name, Dough dough)
        {
            this.Name = name;
            this.Dough = dough;
            this.toppings = new List<Topping>();
        }

        public string Name
        {
            get
            {
                return this.name;
            }
            private set
            {
                if (value.Length > MAX_LENGTH || string.IsNullOrWhiteSpace(value))
                {
                    throw new ArgumentException(ExceptionMessages.Exception.invalidPizzaNameException);
                }

                this.name = value;
            }
        }

        public Dough Dough
        {
            get
            {
                return this.dough;
            }
            private set
            {
                this.dough = value;
            }
        }


        public void AddTopping(Topping topping)
        {
            if (this.toppings.Count == MAX_TOPPING_COUNT)
            {
                throw new ArgumentException(ExceptionMessages.Exception.invalidToppingNumberException);
            }

            this.toppings.Add(topping);
        }

        public override string ToString()
        {
            double calories = this.Dough.CalculateCalories() + this.toppings.Sum(t => t.CalculateCalories());
            return $"{this.Name} - {calories:f2} Calories.";
        }


    }
}