using System;
using System.IO;
using umbraco.BusinessLogic.Actions;
using System.Text.RegularExpressions;

namespace umbracoUtilities
{
	/// <summary>
	/// Summary description for saveStatic.
	/// </summary>
	public class saveStatic : umbraco.BusinessLogic.Actions.IActionHandler
	{
		public saveStatic()	{}

		#region IActionHandler Members

		public string HandlerName() 
		{
			return "SaveStatic";
		}

		public bool Execute(umbraco.cms.businesslogic.web.Document documentObject, umbraco.main.IAction action)
		{
			// If you wanted to you could check which action is parsed and do different stuff according to that.
			// This is pretty easy when just publishing, but on delete, move and sort you might need to update other pages
			// (because of lists and navigation)

			// This is the root of our static pages
			string root = "/static";

			// The pageID is normally updated through the requestHandler which is byparsed here.
			// Therefore we need to set it manually as it's used by some xslt helper functions
			System.Web.HttpContext.Current.Items["pageID"] = documentObject.Id;

			// Get the current page object from the document object
			umbraco.page p = new umbraco.page(documentObject.Id, documentObject.Version);			
		
			// Find url name
			string urlName = umbraco.library.NiceUrl(documentObject.Id);

			// Replace url name with .html
			urlName = urlName.Replace(".aspx", ".html");

			// Render the contents of the page controls
			// into a stringwriter and save the content of the stringwriter into a string
			System.IO.StringWriter writer = new StringWriter();
			System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(writer);
			p.PageContentControl.RenderControl(hw);
			string pageContents = writer.ToString();

			// Replace internal url names (from aspx to .html)
			MatchCollection links = Regex.Matches(pageContents, "<a [^>]*href=\"(/[^>]*.aspx)\">", RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
			foreach (Match link in links) 
			{
				pageContents = pageContents.Replace(link.Value, link.Value.Replace(link.Groups[0].Value, link.Groups[0].Value.Replace(".aspx", ".html")));
			}

			// Maybe create subdirectories
			string[] dirs = urlName.Substring(1, urlName.Length-1).Split("/".ToCharArray());
			string currDir = root;
			if (dirs.Length > 0) 
			{
				for (int i=0; i<dirs.Length-1;i++) 
				{
					currDir += "/" + dirs[i];
					if (!System.IO.Directory.Exists(System.Web.HttpContext.Current.Server.MapPath(currDir))) 
					{
						System.IO.Directory.CreateDirectory(System.Web.HttpContext.Current.Server.MapPath(currDir));
					}
				}
			}

			// Save the contents of the page to file
			System.IO.StreamWriter stream;
			stream = System.IO.File.CreateText(System.Web.HttpContext.Current.Server.MapPath(root + urlName));
			stream.Write(pageContents);
			stream.Close();

			return true;
		}

		public umbraco.main.IAction[] ReturnActions()
		{
			umbraco.main.IAction[] _retVal = {new ActionPublish(), new ActionMove(), new ActionDelete(), new ActionSort()};
			return _retVal;
		}

		#endregion
	}
}