package org.javay.ports;

import java.io.*;
import java.util.Hashtable;
import java.util.Enumeration;
import java.util.Properties;

/**
 */
public class CreateModule
{
	private static String portsDir = "/pbi-build/usr/ports/";
	private static String modulesDir = "/pbi-build/modules/";

	public static void main(String[] args) throws Exception
	{
		String port = args[0];
		String portName = port.substring(port.lastIndexOf("/") + 1);

		Hashtable<String, String > params = new Hashtable<String, String >();
		//here we have defaults;
		params.put("PORTSDIR", "/usr/ports");
		params.put("LOCALBASE", "");
		params.put("LINUXBASE", "/compat/linux");


		for(int i = 1; i < args.length; i++)
		{
			String a =  args[i];
			if(a.startsWith("\"") && a.endsWith("\""))
			{
				a = a.substring(1, a.length()-2);
			}
			if(a.startsWith("'") && a.endsWith("'"))
			{
				a = a.substring(1, a.length()-2);
			}
			if(a.contains("="))
			{
				String[] strings = a.split("=");
				params.put(strings[0], strings[1]);
			}
			else
			{
				params.put(a, "");
			}
		}
		String localBase = params.get("LOCALBASE");
		String slash = "/";
		if(localBase.endsWith("/"))
		{
			slash = "";
		}
		if(!params.containsKey("X11BASE"))
			params.put("X11BASE", localBase);
		if(!params.containsKey("PKGNAMESUFFIX"))
			params.put("PKGNAMESUFFIX", "");
		if(!params.containsKey("DESKTOPDIR"))
			params.put("DESKTOPDIR",  localBase + "");
		if(!params.containsKey("DOCSDIR"))
			params.put("DOCSDIR", localBase + slash + "share/doc/" + portName);
		if(!params.containsKey("PORTDOCS"))
			params.put("PORTDOCS", "");
		if(!params.containsKey("EXAMPLESDIR"))
			params.put("EXAMPLESDIR", localBase + slash + "share/examples/" + portName);
		if(!params.containsKey("DATADIR"))
			params.put("DATADIR", localBase + slash + "share/" + portName);
		if(!params.containsKey("WWWDIR"))
			params.put("WWWDIR", localBase + slash + "www/" + portName);
		if(!params.containsKey("ETCDIR"))
			params.put("ETCDIR", localBase + slash + "etc/" + portName);
		if(!params.containsKey("PIXMAPSDIR"))
			params.put("PIXMAPSDIR", localBase + slash + "share/pixmaps");


		File moduleParentDir = new File(modulesDir, portName);
		moduleParentDir.mkdirs();
		FileWriter writer = new FileWriter(new File(moduleParentDir, "copy-files.sample"));
		//kinda tricky here
		Properties p = new Properties();
		p.load(new FileReader(new File(new File(portsDir, port), "Makefile")));


		LineNumberReader reader = new LineNumberReader(new FileReader(new File(new File(portsDir, port), "pkg-plist")));
		String line = null;
		String marker = "%%";

		Hashtable<String, Integer > unique = new Hashtable<String, Integer>();

		while((line = reader.readLine())!= null)
		{
			if(line.contains(marker))
			{
				Enumeration enumeration = params.keys();
				while (line.contains(marker) && enumeration.hasMoreElements())
				{
					String s = (String) enumeration.nextElement();
					if(line.contains(marker + s + marker))
					{
						try
						{
							line = line.replaceAll(marker + s + marker, params.get(s));
						}
						catch (Exception e)
						{
							System.out.println("line = " + line);
							System.out.println("s = " + s + "  => " + params.get(s));
							e.printStackTrace();
						}
					}
				}
			}

			if(line.contains(marker))
			{
				int index = 0;
				while(line.length() > index && line.indexOf(marker, index) > -1)
				{
					int start = line.indexOf(marker, index);
					int end = line.indexOf(marker, start + marker.length()) + marker.length();
					if(end <= start || end > line.length())
					{
						index = Math.max(start, end) + marker.length();
					}
					else
					{
						String a = line.substring(start, end);
						if(unique.containsKey(a))
						{
							unique.put(a, new Integer( 1 + (Integer) unique.get(a)));
						}
						else
						{
							unique.put(a, new Integer(1));
						}
						index = end;
					}
				}
			}
			else
			{
				if(!line.startsWith("@"))
				{
					writer.write("/usr/local" + (line.startsWith("/") ? "" : "/") + line + " " + line.substring(0, line.lastIndexOf("/") + 1) + "\n");
				}
			}
		}
		writer.close();

		writer = new FileWriter(new File(moduleParentDir, "pbi.conf.sample"));
		writer.write("PROGNAME=\"" + capitalizeFirstLetter(portName) +  "\" \n");
		writer.write("PROGWEB=\"" + (p.containsKey("MASTER_SITES") ? p.get("MASTER_SITES") : "TODO") +"\" \n");
		writer.write("PROGAUTHOR=\"" + capitalizeFirstLetter(portName) +  " Developers\" \n");
		writer.write("#PROGICON=\"TODO\" \n");
		writer.write("PBIPORT=\"/usr/ports/" + port + (port.endsWith("/") ? "" : "/") +"\" \n");
		writer.write("PROGLIBS=\"AUTO\" \n");
		writer.write("PBIUPDATE=\"http://update.pbidir.com\" \n");
		writer.write("#OTHERPORT=\"/usr/ports/some/other/\" \n");
		writer.write("MAKEOPTS=\"\" \n");
		writer.write("BUILDKEY=\"0\" \n");
		writer.write("export PBIPORT MAKEOPTS PROGNAME PROGWEB PROGAUTHOR OTHERPORT PROGICON PROGLIBS PBIUPDATE BUILDKEY");
		writer.close();

		Enumeration enumeration = params.keys();
		while (enumeration.hasMoreElements())
		{
			String s = (String) enumeration.nextElement();
			unique.remove(marker + s + marker);
		}
		if(unique.size() > 0)
		{
			System.out.println("You've missed some parameters, make sure it's intended:");
			Enumeration enumeration1 = unique.keys();
			while (enumeration1.hasMoreElements())
			{
				String s = (String) enumeration1.nextElement();
				System.out.println(s);
			}
		}
	}

	public static String capitalizeFirstLetter(String in)
	{
		if(in == null)
			return in;
		if(in.length() == 1)
			return in.toUpperCase();
		return in.substring(0,1).toUpperCase() + in.substring(1);
	}
}