Bucket/Buckets.Logic/Container.cs

namespace Buckets.Logic
{
    public abstract class Container
    {
        private int content;

        public int Capacity { get; }
        public int Content {get => content; set { ArgumentOutOfRangeException.ThrowIfNegative(value, nameof(Content)); ArgumentOutOfRangeException.ThrowIfGreaterThan(value, Capacity, nameof(Content)); content = value; } }

        public Container(int capacity, int content)
        {
            ArgumentOutOfRangeException.ThrowIfNegative(capacity, nameof(Capacity));
            Capacity = capacity;
            Content = content;
        }

        public void Fill(int amount)
        {
            Content += amount;
        }

        public void Empty(int amount)
        {
            Content -= amount;
        }

        public void Empty()
        {
            Content = 0;
        }
    }
}