using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using RoadTrain.DrawningObjects;
using RoadTrain.MovementStrategy;


namespace RoadTrain.Generics
{
    /// <summary>
    /// Класс для хранения коллекции
    /// </summary>
    internal class RoadTrainGenericStorage
    {
        /// <summary>
        /// Словарь (хранилище)
        /// </summary>
        readonly Dictionary<string, RoadTrainGenericCollection<DrawningRoadTrain,
        DrawningObjectTrain>> _trainStorages;
        /// <summary>
        /// Возвращение списка названий наборов
        /// </summary>
        public List<string> Keys => _trainStorages.Keys.ToList();
        /// <summary>
        /// Ширина окна отрисовки
        /// </summary>
        private readonly int _pictureWidth;
        /// <summary>
        /// Высота окна отрисовки
        /// </summary>
        private readonly int _pictureHeight;
        /// <summary>
        /// Конструктор
        /// </summary>
        /// <param name="pictureWidth"></param>
        /// <param name="pictureHeight"></param>
        public RoadTrainGenericStorage(int pictureWidth, int pictureHeight)
        {
            _trainStorages = new Dictionary<string,
            RoadTrainGenericCollection<DrawningRoadTrain, DrawningObjectTrain>>();
            _pictureWidth = pictureWidth;
            _pictureHeight = pictureHeight;
        }
        /// <summary>
        /// Добавление набора
        /// </summary>
        /// <param name="name">Название набора</param>
        public void AddSet(string name)
        {
            if (_trainStorages.ContainsKey(name)) return;
            _trainStorages[name] = new RoadTrainGenericCollection<DrawningRoadTrain, DrawningObjectTrain>(_pictureWidth, _pictureHeight);
        }
        /// <summary>
        /// Удаление набора
        /// </summary>
        /// <param name="name">Название набора</param>
        public void DelSet(string name)
        {
            if (_trainStorages.ContainsKey(name)) _trainStorages.Remove(name);
            return;
        }
        /// <summary>
        /// Доступ к набору
        /// </summary>
        /// <param name="ind"></param>
        /// <returns></returns>
        public RoadTrainGenericCollection<DrawningRoadTrain, DrawningObjectTrain>?
        this[string ind]
        {
            get
            {
                if (_trainStorages.ContainsKey(ind)) return _trainStorages[ind];
                return null;
            }
        }
    }
}