using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace CyworldDownloader
{
	public partial class Form1 : Form
	{
		string strLoginURL = "http://www.cyworld.com";
		string strContentURL = "http://minihp.cyworld.com/pims/board/image/imgbrd_list.asp?tid=21572675&cpage=1";

		bool m_bFirst = true;

		List<string> photoURLlist = new List<string>();

		public Form1()
		{
			InitializeComponent();
		}

		private void Form1_Load(object sender, EventArgs e)
		{
			wbLogin.Navigate(strLoginURL);
		}

		private void wbLogin_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
		{
			WebBrowser browser = (WebBrowser)sender;
			if(e.Url.Host != browser.Url.Host)
				return;

			if(m_bFirst == true)
			{
				wbLogin.Document.GetElementById("ID").InnerText = "_last_@hanmail.net";
				wbLogin.Document.GetElementById("PASSDM").Focus();

				wbLogin.Document.GetElementsByTagName("HTML")[0].ScrollTop = 201;
				wbLogin.Document.GetElementsByTagName("HTML")[0].ScrollLeft = 652;

				m_bFirst = false;
			}
			else
			{
				photoURLlist.Clear();
				wbContent.Navigate(strContentURL);
			}
		}

		private void wbContent_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
		{
			WebBrowser browser = (WebBrowser)sender;
			if(e.Url.Host != browser.Url.Host)
				return;

			HtmlElement element = browser.Document.GetElementsByTagName("BODY")[0];

			//StreamWriter writer = new StreamWriter("content.html");
			//writer.Write(element.InnerHtml);
			//writer.Close();

			string strTarget = element.InnerHtml;
			while(true)
			{
				int iPos = strTarget.IndexOf("file_down");
				if(iPos < 0)
					break;

				int iPos2 = strTarget.Substring(Math.Max(iPos-200, 0), 200).LastIndexOf("http") + Math.Max(iPos-200, 0);
				int iPos3 = strTarget.Substring(iPos2, 500).IndexOf("\"") + iPos2;
				string photourl = strTarget.Substring(iPos2, iPos3-iPos2);
				photoURLlist.Add(photourl);
				Console.WriteLine(photourl);

				strTarget = strTarget.Substring(iPos3, strTarget.Length-iPos3);
			}

			if(photoURLlist.Count > 0)
				wbPhoto.Navigate(photoURLlist[0]);
		}

		

		private void wbPhoto_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
		{
			WebBrowser browser = (WebBrowser)sender;
			if(e.Url.Host != browser.Url.Host)
				return;


			// 참고
			// http://www.developerfusion.com/code/4712/generate-an-image-of-a-web-page/

			using (Graphics srcGraphics = browser.CreateGraphics())
			{
				  using (Graphics destGraphics = this.pictureBox1.CreateGraphics())
				  {
					  IntPtr hdcDest = destGraphics.GetHdc();
					  IntPtr hdcSrc = srcGraphics.GetHdc();
					  GDI32.BitBlt(
							hdcDest,
							0, 0,
							browser.ClientRectangle.Width, browser.ClientRectangle.Height,
							hdcSrc,
							0, 0,
							(int) GDI32.SRCCOPY
							);
					  srcGraphics.ReleaseHdc(hdcSrc);
					  destGraphics.ReleaseHdc(hdcDest);
				  }
			}

			//HtmlDocument dom = browser.Document;

			//htmlc

			//IHTMLDocument2 doc = (IHTMLDocument2)webBrowser1.Document.DomDocument;
			//IHTMLControlRange imgRange = (IHTMLControlRange)((HTMLBody)doc.body).createControlRange();

			//foreach(IHTMLImgElement img in doc.images)
			//{
			//    imgRange.add((IHTMLControlElement)img);

			//    imgRange.execCommand("Copy", false, null);

			//    using(Bitmap bmp = (Bitmap)Clipboard.GetDataObject().GetData(DataFormats.Bitmap))
			//    {
			//        bmp.Save(@"C:\"+img.nameProp);
			//    }
			//}
		}

		private void btDebug_Click(object sender, EventArgs e)
		{
			Console.WriteLine("break");
		}
	}
}