using System;
using System.Collections;
using System.Collections.Generic;

namespace Python.Test
{
    public class MpLengthCollectionTest : ICollection
    {
        private readonly List items;

        public MpLengthCollectionTest()
        {
            SyncRoot = new object();
            items = new List
            {
                1,
                2,
                3
            };
        }

        public int Count => items.Count;

        public object SyncRoot { get; private set; }

        public bool IsSynchronized => false;

        public void CopyTo(Array array, int index)
        {
            throw new NotImplementedException();
        }

        public IEnumerator GetEnumerator()
        {
            throw new NotImplementedException();
        }
    }

    public class MpLengthExplicitCollectionTest : ICollection
    {
        private readonly List items;
        private readonly object syncRoot;

        public MpLengthExplicitCollectionTest()
        {
            syncRoot = new object();
            items = new List
            {
                9,
                10
            };
        }
        int ICollection.Count => items.Count;

        object ICollection.SyncRoot => syncRoot;

        bool ICollection.IsSynchronized => false;

        void ICollection.CopyTo(Array array, int index)
        {
            throw new NotImplementedException();
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            throw new NotImplementedException();
        }
    }

    public class MpLengthGenericCollectionTest : ICollection
    {
        private readonly List items;

        public MpLengthGenericCollectionTest() {
            SyncRoot = new object();
            items = new List();
        }

        public int Count => items.Count;

        public object SyncRoot { get; private set; }

        public bool IsSynchronized => false;

        public bool IsReadOnly => false;

        public void Add(T item)
        {
            items.Add(item);
        }

        public void Clear()
        {
            items.Clear();
        }

        public bool Contains(T item)
        {
            return items.Contains(item);
        }

        public void CopyTo(T[] array, int arrayIndex)
        {
            items.CopyTo(array, arrayIndex);
        }

        public IEnumerator GetEnumerator()
        {
            return ((IEnumerable)items).GetEnumerator();
        }

        public bool Remove(T item)
        {
            return items.Remove(item);
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return items.GetEnumerator();
        }
    }

    public class MpLengthExplicitGenericCollectionTest : ICollection
    {
        private readonly List items;

        public MpLengthExplicitGenericCollectionTest()
        {
            items = new List();
        }

        int ICollection.Count => items.Count;

        bool ICollection.IsReadOnly => false;

        public void Add(T item)
        {
            items.Add(item);
        }

        void ICollection.Clear()
        {
            items.Clear();
        }

        bool ICollection.Contains(T item)
        {
            return items.Contains(item);
        }

        void ICollection.CopyTo(T[] array, int arrayIndex)
        {
            items.CopyTo(array, arrayIndex);
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return items.GetEnumerator();
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return ((IEnumerable)items).GetEnumerator();
        }

        bool ICollection.Remove(T item)
        {
            return items.Remove(item);
        }
    }
}