namespace Shared
{
	/// <summary>
	/// Button 按键
	/// </summary>
	public class ViewGroup : View
	{
		/// <summary>
		/// 真正的容器
		/// </summary>
		internal Android.Views.ViewGroup realViewGroup;

		/// <summary>
		/// 当前控件
		/// </summary>
		/// <value>The android frame layout.</value>
		internal Android.Views.ViewGroup viewGroup
        {
			get
			{
				return AndroidView as Android.Views.ViewGroup;
			}
			set
			{
				AndroidView = value;
			}
		}
	
		/// <summary>
		/// 增加子控件
		/// </summary>
		/// <param name="view">View.</param>
		public virtual void AddChidren(View view)
		{
			view.Parent = this;
			viewList.Add(view);
            if (GetType () == typeof (VerticalScrolViewLayout)) {
                //这个是为了填充的
                if (0<realViewGroup.ChildCount&&realViewGroup.GetChildAt (realViewGroup.ChildCount - 1).Tag != null&&realViewGroup.GetChildAt (realViewGroup.ChildCount - 1).Tag.ToString()=="填充") {
                    realViewGroup.RemoveViewAt (realViewGroup.ChildCount - 1);
                }
            }
            if(view.AndroidView.Parent!=null){
                (view.AndroidView.Parent as Android.Views.ViewGroup)?.RemoveView(view.AndroidView);
            }
			realViewGroup.AddView(view.AndroidView);
			if (!IsCanRefresh)
			{
				return;
			}
			view.Refresh();
            //如果父控件是这种，就在最后补上一个控件
            if (GetType () == typeof (VerticalScrolViewLayout)) {
                int tempHeight = -10;
                foreach (var temp in viewList) {
                    tempHeight += temp.Height;
                }
                realViewGroup.AddView (new Android.Widget.LinearLayout (Application.Activity) { Tag = "填充" }, new Android.Views.ViewGroup.LayoutParams (Android.Views.ViewGroup.LayoutParams.MatchParent, tempHeight < realViewGroup.LayoutParameters.Height ? realViewGroup.LayoutParameters.Height - tempHeight:0));
            }

			if (view is ViewGroup)
			{
				var tempViewGroup = (ViewGroup)view;
				for (int i = 0; i < tempViewGroup.ChildrenCount; i++)
				{
					tempViewGroup.GetChildren(i).Refresh();
				}
			}
		}
		/// <summary>
		/// 控件数量
		/// </summary>
		/// <value>The children count.</value>
		public int ChildrenCount { get { return viewList.Count; } }

		/// <summary>
		/// 控件列表
		/// </summary>
        internal System.Collections.Generic.List<View> viewList = new System.Collections.Generic.List<View>();


		string backgroundImagePath;
		/// <summary>
		/// 背景图片
		/// </summary>
		/// <value>The background image path.</value>
		public virtual string BackgroundImagePath
		{
			get
			{
				return backgroundImagePath;
			}
			set
			{
				backgroundImagePath = value;
				if (!IsCanRefresh || null == backgroundImagePath || Radius != 0)
				{
					return;
				}
				if (Background(backgroundImagePath))
				{
					
				}
			}
		}

		/// <summary>
		/// 刷新界面
		/// </summary>
		public override void Refresh()
		{
			base.Refresh();
			BackgroundImagePath = backgroundImagePath;
		}

		/// <summary>
		/// 移除控件
		/// </summary>
		/// <param name="view">View.</param>
		public virtual void Remove(View view)
		{
			if (view == null)
			{
				return;
			}

			viewList.Remove(view);
			realViewGroup.RemoveView(view.AndroidView);
			view.Parent = null;
		}

		/// <summary>
		/// 清空所有的控件
		/// </summary>
		public virtual void RemoveAll()
		{
			while (0 < viewList.Count)
			{
                //Remove(GetChildren(0));
                GetChildren(0)?.RemoveFromParent();
            }
		}

		/// <summary>
		/// 移除指定索引对象
		/// </summary>
		/// <param name="index">Index.</param>
		public virtual void RemoveAt(int index)
		{
            //Remove(GetChildren(index));
            GetChildren(index)?.RemoveFromParent();

        }

		/// <summary>
		/// 获取指定索引对象
		/// </summary>
		/// <returns>The children.</returns>
		/// <param name="index">Index.</param>
		public View GetChildren(int index)
		{
			if (viewList.Count - 1 < index || index < 0)
			{
				return null;
			}
			return viewList[index];
		}

        /// <summary>
        /// 根据类型移除控件
        /// </summary>
        /// <param name="type">Type.</param>
        public void RemoveViewByType(System.Type type){
            for (int i = 0; i < viewList.Count;i++)
            {
                if(viewList[i].GetType()==type)
                {
                    viewList[i].RemoveFromParent();
                    i--;
                }
            }
        }

		/// <summary>
		/// 根据Tag移除控件
		/// </summary>
		/// <param name="type">Type.</param>
        public void RemoveViewByTag(object tag)
		{
			for (int i = 0; i < viewList.Count; i++)
			{
                if (viewList[i].Tag == tag)
				{
                    viewList[i].RemoveFromParent();
					i--;
				}
			}
		}
	}
}