using System;
using System.Net;
using Android.Graphics;
using Android.Graphics.Drawables;

namespace Shared
{
	public class UrlMonitor : View
	{
		public UrlMonitor()
		{
			AndroidView = new Android.Widget.TextView(Application.Activity);
		}

		//是否已经启动
		bool isStarted;
		/// <summary>
		/// 用户名
		/// </summary>
		public string UserName = "";
		/// <summary>
		/// 密码
		/// </summary>
		public string Password = "";

		/// <summary>
		/// 摄像头的图片地址
		/// </summary>
		public string URL;

		/// <summary>
		/// 启动
		/// </summary>
		public void Start()
		{
			if (isStarted)
			{
				return;
			}
			isStarted = true;
			System.Threading.Tasks.Task.Run(() =>
				{
					while (isStarted)
					{
						System.Threading.Thread.Sleep(100);
						try
						{

							WebClient webClient = new WebClient();
							webClient.Headers.Add("Accept-Encoding", "gzip, deflate");
							webClient.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes(UserName + ":" + Password)));
							var bytes = webClient.DownloadData(URL);
							var bitmpap = BitmapFactory.DecodeByteArray(bytes, 0, bytes.Length);

                            BitmapDrawable background = null;
                            if (Application.IsPad)
                            {
                                background = new BitmapDrawable(bitmpap);
                            }
                            else
                            {
                                var matrix = new Matrix();
                                //旋转图片 动作
                                matrix.PostRotate(90);
                                var newBitmpap = Bitmap.CreateBitmap(bitmpap, 0, 0, bitmpap.Width, bitmpap.Height, matrix, false);
                                background = new BitmapDrawable(newBitmpap);
                                if (bitmpap != newBitmpap)
                                {
                                    bitmpap.Recycle();
                                }
                            }
							
							Shared.Application.RunOnMainThread(() =>
									{
										try
										{
											AndroidView.Background = background;
										}
										catch { }
									});
						}
						catch { }
					}
				});
		}
		/// <summary>
		/// 停止播放
		/// </summary>
		public void Stop()
		{
			isStarted = false;
		}
	}
}