using System;
using System.Collections.Generic;

namespace Tizen.NUI.Binding
{
    internal abstract class DataTemplateSelector : DataTemplate
    {
        Dictionary<Type, DataTemplate> _dataTemplates = new Dictionary<Type, DataTemplate>();

        public DataTemplate SelectTemplate(object item, BindableObject container)
        {
            // var listView = container as ListView;

            // var recycle = listView == null ? false :
            // 	(listView.CachingStrategy & ListViewCachingStrategy.RecycleElementAndDataTemplate) ==
            // 		ListViewCachingStrategy.RecycleElementAndDataTemplate;

            DataTemplate dataTemplate = null;
            // if (recycle && _dataTemplates.TryGetValue(item.GetType(), out dataTemplate))
                // return dataTemplate;

            dataTemplate = OnSelectTemplate(item, container);
            if (dataTemplate is DataTemplateSelector)
                throw new NotSupportedException(
                    "DataTemplateSelector.OnSelectTemplate must not return another DataTemplateSelector");

            // if (recycle)
            // {
            // 	if (!dataTemplate.CanRecycle)
            // 		throw new NotSupportedException(
            // 			"RecycleElementAndDataTemplate requires DataTemplate activated with ctor taking a type.");

            // 	_dataTemplates[item.GetType()] = dataTemplate;
            // }

            return dataTemplate;
        }

        protected abstract DataTemplate OnSelectTemplate(object item, BindableObject container);
    }
}