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/*
 * Copyright (C) 2014 Steve Ratcliffe
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
package test.svg.subdiv;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

/**
 * Convert a nod file to svg to show the routing relationships.
 *
 * @author Steve Ratcliffe
 */
public class Main {
        private static final String USAGE_MSG = "Usage: div2svg [--level <n>] <filename>\n" +
                        "By default divisions at level 0 are shown";
        private SvgDivDoc doc;

        /**
         * Create an XML document.
         */
        private void createDoc() {
                doc = new SvgDivDoc();
                doc.createDoc();
        }

        /**
         * Write the document.
         */
        private void writeDoc() {
                doc.setTransform(doc.getLeftOffset(), doc.getTopOffset());

                try {
                        OutputFormat fmt = OutputFormat.createPrettyPrint();
                        XMLWriter output = new XMLWriter(new FileWriter(new File("out.svg")), fmt);
                        output.write(doc.getDoc());
                        output.close();
                } catch (IOException e) {
                        e.printStackTrace();
                }
        }

        private void run(String[] args) {
                createDoc();

                String name = null;
                int level = 0;

                int i = 0;
                while (i < args.length) {
                        String s = args[i];

                        if (s.startsWith("--level")) {
                                level = Integer.parseInt(args[++i]);
                        } else {
                                name = s;
                        }
                        i++;
                }

                if (name == null)
                        System.out.println(USAGE_MSG);

                // Draw the route network
                DivDisp divDisp = new DivDisp(doc);
                divDisp.run(name, level);

                writeDoc();
        }

        public static void main(String[] args) {
                if (args.length < 1) {
                        System.err.println(USAGE_MSG);
                        System.exit(1);
                }

                Main main = new Main();
                main.run(args);
        }
}