using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.Util;
using Android.Views.Animations;

namespace Shared
{
	/// <summary>
	/// 当前视图
	/// </summary>
	public class Spinner : Button
	{
		public Spinner()
		{
			TextColor = 0xff007aff;
			Radius = 10;
			BorderWidth = (uint)DensityUtil.Dip2Px(1);
			MouseUpEventHandler += (sender, e) =>
			{
				if (AdapterStr == null || AdapterStr.Length == 0)
				{
					return;
				}
				ScrollView tempScrolView = new ScrollView(Application.Activity);
				tempScrolView.VerticalScrollBarEnabled = false;
				Application.RootFrameLayout.AddView(tempScrolView, new Android.Views.ViewGroup.LayoutParams(Application.CurrentWidth, Application.CurrentHeight));
				tempScrolView.BringToFront();
				tempScrolView.Alpha = 0.94f;


				Android.Widget.LinearLayout linearLayout = new Android.Widget.LinearLayout(Application.Activity);
				linearLayout.Orientation = Orientation.Vertical;
				tempScrolView.AddView(linearLayout, new Android.Views.ViewGroup.LayoutParams(tempScrolView.LayoutParameters.Width, Android.Views.ViewGroup.LayoutParams.WrapContent));


				int height = 40;
				int totalHeight = AdapterStr.Length * DensityUtil.Dip2Px(height + 1);
				if (totalHeight < tempScrolView.LayoutParameters.Height)
				{
					var ll = new Android.Widget.TextView(Application.Activity);
					ll.Touch += (sender1, e1) =>
					{
						if (e1.Event.Action == MotionEventActions.Up)
						{
							((Android.Views.ViewGroup)tempScrolView.Parent).RemoveView(tempScrolView);
						}
					};
					linearLayout.AddView(ll, new Android.Views.ViewGroup.LayoutParams(tempScrolView.LayoutParameters.Width, tempScrolView.LayoutParameters.Height - totalHeight));
				}
				Android.Widget.LinearLayout l = new Android.Widget.LinearLayout(Application.Activity);
				l.Orientation = Orientation.Vertical;
				linearLayout.AddView(l, new Android.Views.ViewGroup.LayoutParams(linearLayout.LayoutParameters.Width, Android.Views.ViewGroup.LayoutParams.WrapContent));

				for (int i = 0; i < this.AdapterStr.Length; i++)
				{
					Android.Widget.Button button = new Android.Widget.Button(Application.Activity);

					button.Text = AdapterStr[i];
					button.SetTextColor(new Android.Graphics.Color(0x6d, 0x6d, 0x72, 0xff));
					button.SetBackgroundColor(Android.Graphics.Color.White);
					button.Tag = i;
					button.Click += (sender1, e1) =>
					{
						((Android.Views.ViewGroup)tempScrolView.Parent).RemoveView(tempScrolView);
						//tempScrolView.Animation = new TranslateAnimation(
						//			Dimension.RelativeToSelf, 0.0f,
						//			Dimension.RelativeToSelf, 0.0f,
						//			Dimension.RelativeToSelf, 0.0f,
						//			Dimension.RelativeToSelf, 1.0f);
						//tempScrolView.Animation.Duration = 500;
						////view.Animation.AnimationEnd += (sender, e) =>
						////{
						////	((Android.Views.ViewGroup)view.Parent).RemoveView(view);
						////};
						//tempScrolView.Animation.StartNow();
						if (SelectedItemChanged != null)
						{
							SelectedItemChanged(this, (int)button.Tag);
							Text = AdapterStr[(int)button.Tag];
						}
					};

					l.AddView(button, new Android.Views.ViewGroup.LayoutParams(l.LayoutParameters.Width, DensityUtil.Dip2Px(height)));


					if (i == AdapterStr.Length - 1)
					{
						//var gradientDrawable = new Android.Graphics.Drawables.GradientDrawable();
						//gradientDrawable.SetCornerRadius(10);
						//button.Background = gradientDrawable;
					}
					else {

						Android.Widget.TextView line = new Android.Widget.TextView(Application.Activity);
						line.SetBackgroundColor(new Android.Graphics.Color(0xdd, 0xdd, 0xdd, 0xff));
						l.AddView(line, new Android.Views.ViewGroup.LayoutParams(Android.Views.ViewGroup.LayoutParams.MatchParent, DensityUtil.Dip2Px(1)));

						if (i == 0)
						{
							//var gradientDrawable = new Android.Graphics.Drawables.GradientDrawable();
							//gradientDrawable.SetCornerRadius(10);
							//button.Background = gradientDrawable;
						}
					}
				}

				tempScrolView.Animation = new TranslateAnimation(
									Dimension.RelativeToSelf, 0.0f,
									Dimension.RelativeToSelf, 0.0f,
									Dimension.RelativeToSelf, 1.0f,
									Dimension.RelativeToSelf, 0.0f);
				tempScrolView.Animation.Duration = 500;

				tempScrolView.Animation.StartNow();
			};
		}


		int currentRow;
		/// <summary>
		/// 当前行
		/// </summary>
		/// <value>当前行，从0开始</value>
		public int CurrentRow
		{
			get
			{
				return currentRow;
			}
			set
			{
				if (AdapterStr == null || value < 0 || AdapterStr.Length <= value)
				{
					return;
				}

				currentRow = value;
				Text = AdapterStr[value];
			}
		}


		/// <summary>
		/// 添加下拉列表的数据
		/// </summary>
		/// <param name="Str">String.</param>
		public string[] AdapterStr
		{
			get;
			set;
		}

        /// <summary>
        /// 选择列表变化的事件
        /// </summary>
        public Action<View, int> SelectedItemChanged;


		/// <summary>
		/// 刷新当前视图
		/// </summary>
		public override void Refresh()
		{
			base.Refresh();
			CurrentRow = 0;
		}
	}
}