import mixer.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Static extends HttpServlet{
	File file = null;
	private static String htmlStatic = null;
	
	/*	Skapar filen count och skriver vŠrdet 0 om den inte redan finns
	  	LŠser in filen Static.html  */
	public void init() throws ServletException{
		try{
			file = new File(getServletContext().getRealPath("count"));
			if (file.createNewFile())
				writeValue(file, 0);
		}catch (IOException ignore){}
		if (htmlStatic == null) {
			htmlStatic = Mixer.getContent(new File(getServletContext().getRealPath("Static.html")));
		}
	}

	public void destroy(){
		super.destroy();
	}

	//	Returnerar vŠrdet frŚn filen count
	int readValue(File file)throws IOException{
		BufferedReader infile = new BufferedReader(new FileReader(file));
		int tmp = Integer.parseInt(infile.readLine());
		infile.close();
		return tmp;
	}

	//	Skriver ett nytt vŠrde till filen count
	void writeValue(File file, int value)throws IOException{
		PrintWriter outfile = new PrintWriter(new FileWriter(file));
		outfile.println(value);
		outfile.close();
	}

	/*	…kar vŠrdet pŚ filen count 
		ersŠtter texten ===antal=== med det nya vŠrdet pŚ count och skriver ut html sidan */
	public void doGet(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException {
		Mixer mix = new Mixer(htmlStatic);
		int count;
		res.setContentType("text/html");
		PrintWriter out = res.getWriter();
		synchronized (this){
			count = readValue(file);
			writeValue(file, ++count);
		}
		mix.add("===antal===", Integer.toString(count));
		out.println(mix.getMix());
	}
}