package CollectionGenericObjects;

import java.util.ArrayList;
import java.util.List;

public class ListGenericObjects<T> implements ICollectionGenericObjects<T> {
    private List<T> _collection;
    private int _maxCount;
    @Override
    public int Count() {
        return _collection.size();
    }

    @Override
    public void SetMaxCount(int value, Class<T> type) {
        if (value > 0) {
            _maxCount = value;
        }
    }
    public ListGenericObjects() {
        _collection = new ArrayList<T>();
    }

    @Override
    public int Insert(T obj) {
        if (Count() == _maxCount) return -1;
        _collection.add(obj);
        return Count();
    }

    @Override
    public int Insert(T obj, int position) {
        if (Count() == _maxCount) return -1;
        if (position > Count() || position < 0) return -1;
        _collection.add(position, obj);
        return 0;
    }

    @Override
    public T Remove(int position) {
        if (position >= _maxCount || position < 0) {
            return null;
        }
        T myObj = _collection.get(position);
        _collection.remove(position);
        return myObj;
    }

    @Override
    public T Get(int position) {
        if (position >= Count() || position < 0) {
            return null;
        }
        return _collection.get(position);
    }
}