package de.erich.railcontrol;

import android.util.Log;

import java.io.BufferedReader;
import java.io.FileInputStream;
//import java.io.FileReader;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class ParseLoksConfiguration {

	static String ip;
	static int port;
	static int numLoks = 0;
	
	public enum Section {
	    NONE, CONFIGURATION, GENERAL, LOKS 
	}
	
	
	public void parseConfiguration(String fileName) throws IOException {

		try{
	         InputStream fis=new FileInputStream(fileName);
	         BufferedReader br=new BufferedReader(new InputStreamReader(fis));

	         String Line = br.readLine();
	         Section sec = Section.NONE;
	         while(Line != null){
	        	 String[] words=Line.split("\t");
	             if ( words[0].equalsIgnoreCase("/>")) {
	            	 sec = Section.NONE; 
	             } else if ( words[0].equalsIgnoreCase("<General")) {
	            	 sec = Section.GENERAL; 
	             } else if ( words[0].equalsIgnoreCase("<Lok")) {
	            	 sec = Section.LOKS;
	            	 MyActivity.zuege[numLoks] = new zug();
	            	 numLoks++;
	             } else if ( words[0].equalsIgnoreCase("") ) {//&& words.length > 3) {
	            	 if ( words.length > 1 ) {
	            		 if (sec == Section.GENERAL) {
	            			 if ( words[1].equalsIgnoreCase("ip:")) ip = words[2];
	            			 else if (words[1].equalsIgnoreCase("port:")) 
	            				 port = Integer.parseInt(words[2]);
	            		 } else if (sec == Section.LOKS) {
	            			 MyActivity.zuege[numLoks-1].setProperty(words);
	            		 }
	            	 } 
            	 }
	             try {
	            	 Line = br.readLine();
	             } catch (Exception e){
                     System.err.println("Error in Parseloop: " + e);
	    	     }
	         }
             br.close();
	     }
	     catch(FileNotFoundException e){
            this.printConfiguration(fileName);
	     }
        Log.d("printConfig", "Parsed Configuration");

    }

	public void printConfiguration(String fileName ) throws IOException {
		FileWriter outStream = null;

        /* 
        try {            
        
        	Runtime.getRuntime().exec("cp " + fileName + " " + fileName + ".bck");
        } catch (Exception e) {
        	System.out.println("Error: " + e);
        	System.exit(0);        	
        }
        */
        
		try {
			outStream = new FileWriter(fileName);
		} catch (IOException e) {
			System.out.println("Error " + e);
		}
		
		outStream.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
		outStream.write("<Configuration>\n");
		outStream.write("<General\n");
        outStream.write("\tip:\t" + ip + "\n\tport:\t" + port + "\n");
        outStream.write("/>\n");

		if ( MyActivity.zuege != null ) {
			for (int i = 0; i < numLoks; i++) {
                if(MyActivity.zuege[i] != null) {
                    MyActivity.zuege[i].printConfiguration(outStream);
                }
			}			
		}
		outStream.write("</Configuration>\n");
//		if (outStream != null) {
			outStream.close();
        Log.d("printConfig", "Printed Configuration");
			
//		}
	}

}