package com.idiominc.ws.opentopic.fo.xep;

import com.renderx.xep.FOTarget;
import com.renderx.xep.FormatterImpl;
import org.xml.sax.InputSource;

import javax.xml.transform.sax.SAXSource;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;

/*
Copyright (c) 2004-2006 by Idiom Technologies, Inc. All rights reserved. 
IDIOM is a registered trademark of Idiom Technologies, Inc. and WORLDSERVER
and WORLDSTART are trademarks of Idiom Technologies, Inc. All other 
trademarks are the property of their respective owners. 

IDIOM TECHNOLOGIES, INC. IS DELIVERING THE SOFTWARE "AS IS," WITH 
ABSOLUTELY NO WARRANTIES WHATSOEVER, WHETHER EXPRESS OR IMPLIED,  AND IDIOM
TECHNOLOGIES, INC. DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE AND WARRANTY OF NON-INFRINGEMENT. IDIOM TECHNOLOGIES, INC. SHALL NOT
BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, COVER, PUNITIVE, EXEMPLARY,
RELIANCE, OR CONSEQUENTIAL DAMAGES (INCLUDING BUT NOT LIMITED TO LOSS OF 
ANTICIPATED PROFIT), ARISING FROM ANY CAUSE UNDER OR RELATED TO  OR ARISING 
OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE, EVEN IF IDIOM
TECHNOLOGIES, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 

Idiom Technologies, Inc. and its licensors shall not be liable for any
damages suffered by any person as a result of using and/or modifying the
Software or its derivatives. In no event shall Idiom Technologies, Inc.'s
liability for any damages hereunder exceed the amounts received by Idiom
Technologies, Inc. as a result of this transaction.

These terms and conditions supersede the terms and conditions in any
licensing agreement to the extent that such terms and conditions conflict
with those set forth herein.

This file is part of the DITA Open Toolkit project hosted on Sourceforge.net. 
See the accompanying license.txt file for applicable licenses.
*/
public class Runner {
    private boolean failed;

    private static boolean failOnError = true;

    public static void main(String[] args) {
        if (args.length < 2) {
            System.out.println("Invalid number of parameters. " +
                    "This class should not be executed outside of publising output build script");
            System.exit(1);
        }

        if (args.length >= 3 && args[2].equals("failOnError=false"))
        {
            failOnError = false;
        }

        boolean failed = new Runner().run(args);

        if (failed && failOnError) {
            System.exit(1);
        } else {
            System.exit(0);
        }
    }

    public void fail()
    {
        this.failed = true;
    }

    /**
     * @return true if transformation failed
     */
    private boolean run(String[] args) {
        FormatterImpl xep = null;
        try {
            xep = new FormatterImpl();
        } catch (Exception e) {
            System.out.println("Could not create XEP formatter: " + e.toString());
            return true;
        }

        String outputFormat = "PDF";
        for (int i = 2; i < args.length; i++) {
            if (args[i].startsWith("-")) {
                outputFormat = args[i].substring(1);
            }
        }

        try {
            SAXSource source = createSAXSource(args);
            OutputStream out = createOutputStream(args);
            Logger logger = createCustomLogger(this);

            try {
                try {
                    xep.render(source, new FOTarget(out, outputFormat), logger);
                } finally {
                    out.close();
                }
            } catch (Exception e) {
                System.out.println("Rendering failed: " + e.getMessage());
                return true;
            }
        } finally {
            xep.cleanup();
        }

        return this.failed;
    }

    private static SAXSource createSAXSource(String[] args) {
        SAXSource source = null;
        try {
            File in = new File(args[0]);
            InputSource saxsrc = new InputSource(in.toURL().toString());
            source = new SAXSource(saxsrc);
        } catch (Exception e) {
            System.out.println("Source creation failed: " + e.getMessage());
            System.exit(1);
        }
        return source;
    }

    private static OutputStream createOutputStream(String[] args) {
        OutputStream out = null;
        try {
            out = new BufferedOutputStream(new FileOutputStream(args[1]));
        } catch (Exception e) {
            System.out.println("Could not open output file: " + e.getMessage());
            System.exit(1);
        }
        return out;
    }

    private static Logger createCustomLogger(Runner runner) {
        Logger logger = null;
        try {
            logger = new Logger(runner);
        } catch (Exception e) {
            System.out.println("Log handler creation failed: " + e.getMessage());
            System.exit(1);
        }
        return logger;
    }
}

