package Controller;

import Gui.*;
import Obj.*;
import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.util.*;

public class PFGenManager {
    
    private NProjObj proj;
    private String[] simList;
    private StructureApp app;

    private PFileGenDlg dlg;
    
      
    public PFGenManager (StructureApp app,NProjObj proj, String[] simList){
	
	this.app =app;
	this.simList = simList;
	this.proj = proj;
	
	dlg = new PFileGenDlg(simList);
	dlg.setManager(this);
	dlg.showDialog();
	
    }

    public void generateFile(String simName, int fromK, int toK, String path, boolean userSeed, int start_seed){
	
	NSimObj sim = ObjIO.loadSimObj(proj,simName);
	if(sim==null)
	    return;
	
	int seed=0;
	if(userSeed)
	    seed = start_seed;
	
	int counter = 0;
	
	for(int kcount = fromK;kcount<=toK;kcount++){	    
	    sim.setMAXPOPS(kcount);
	    
	    if(userSeed){
		sim.setRNDSEED(seed+counter);
		counter++;
	    }
	    
	    sim.setOutFile("");	    
	    String filename = new String("mainparams."+simName+".k"+kcount);
	    File paramFile = new File(path,filename);
	    PrintStream out = OpenOutputFile(paramFile);
	    out.println(sim.getConfig());
	    out.close();   
	}
	
	String postmessage = null;
	if(toK!=fromK)
	    postmessage = ""+(toK-fromK+1)+" parameter files generated";
	else 
	    postmessage = "1 parameter file generated";
	

	JOptionPane.showMessageDialog(dlg,
				      postmessage,
				      null,
				      JOptionPane.INFORMATION_MESSAGE);
	
	
    }


    private static PrintStream OpenOutputFile(File file){
	
	PrintStream  out;
	try {  // try to open output file as well...	    
	    out = new PrintStream(new FileOutputStream(file));
	} 
	catch (FileNotFoundException e) {
	    System.err.println("**Error: unable to open output file.");
	    out = null;
	}//try-catch
	catch (SecurityException e) {
	    System.err.println("**Error: no permission to write output file.");
	    out = null;
	}//try-catch
	catch (IOException e) {
	    System.err.println("**Error: unknown error opening output file.");
	    out = null;
	}//try-catch
	
	return out;
    }
    

}