/*
 *  Copyright 2006 Columbia University.
 *
 *  This file is part of MEAPsoft.
 *
 *  MEAPsoft is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 *  MEAPsoft 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with MEAPsoft; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 *  02110-1301 USA
 *
 *  See the file "COPYING" for the text of the license.
 */

package com.meapsoft.composers;

import gnu.getopt.Getopt;

import java.io.IOException;
import java.text.NumberFormat;
import java.util.Vector;

import com.meapsoft.ChunkDist;
import com.meapsoft.EDLChunk;
import com.meapsoft.EDLFile;
import com.meapsoft.ParserException;

/**
 * Simply take an existing EDL file and apply the various composer
 * options (reverse, gain, etc.) to it. Mostly created for output
 * from visualizers.
 *
 * @author Douglas Repetto
 */

public class EDLComposer extends Composer
{
	public static String description = "EDLComposer applies " +
		"composer options (gain, crossfade, etc.) to an existing " +
		".edl file. It is meant to be used to generate output " +
		"from the visualizers.";
	
    String outFileName = "visualized.edl";

    EDLFile inEDLFile;
    //int[] featdim = null;
    //ChunkDist dist;
    boolean reverseSort = false;
    boolean debug = false;
    boolean normalizeFeatures = true;

    public EDLComposer(String inEDLFN, String outEDLFN)
    {
        this(new EDLFile(inEDLFN), new EDLFile(outEDLFN));
    }

    public EDLComposer(EDLFile inEDL, EDLFile outEDL)
    {
        this.inEDLFile = inEDL;
        outFile = outEDL;

        if(outFile == null)
            outFile = new EDLFile(outFileName);
        
        //make sure we write out the edl file    
		writeMEAPFile = true;
    }

    public void printUsageAndExit() 
    {
        System.out.println("Usage: EDLComposer [-options] EDLFile.edl \n\n" + 
               "  where options include:\n" + 
               "    -o output_file  the file to write the output to (defaults to sorted.edl)\n" +
               "    -g              debug mode (prints out chunk features on each line of output file)\n" +
               "    -r              sort in reverse order");
        printCommandLineOptions('i');
        printCommandLineOptions('d');
        printCommandLineOptions('c');
        System.out.println();
        System.exit(0);
    }

    /**
     * SortComposer constructor.  Parses command line arguments
     */
    public EDLComposer(String[] args) 
    {
        if(args.length == 0)
            printUsageAndExit();

        Vector features = new Vector();

        // Parse arguments
        String argString = "d:i:o:c:r:g";
       // featdim = parseFeatDim(args, argString);
        //dist = parseChunkDist(args, argString, featdim);
        parseCommands(args, argString);

        Getopt opt = new Getopt("EDLComposer", args, argString);
        opt.setOpterr(false);
        
        int c = -1;
        while ((c =opt.getopt()) != -1) 
        {
            switch(c) 
            {
            case 'o':
                outFileName = opt.getOptarg();
                break;
            case 'r':
                reverseSort = true;
                break;
            case 'g':
                debug = true;
                break;
            case 'd':  // already handled above
                break;
            case 'i':  // already handled above
                break;
            case 'c':  // already handled above
                break;
            case '?':
                printUsageAndExit();
                break;
            default:
                System.out.print("getopt() returned " + c + "\n");
            }
        }
        
        // parse arguments
        int ind = opt.getOptind();
        if(ind > args.length)
            printUsageAndExit();
        
        inEDLFile = new EDLFile(args[args.length-1]);
        outFile = new EDLFile(outFileName);

        System.out.println("Composing " + outFileName + 
                           " from " +  args[args.length-1] + ".");
    }

    public void setReverseSort(boolean b)
    {
        reverseSort = b;
    }

    public void setNormalizeFeatures(boolean b)
    {
        normalizeFeatures = b;
    }

    public void setup() throws IOException, ParserException
    {
        super.setup();

        if(!inEDLFile.haveReadFile)
            inEDLFile.readFile();

        if(inEDLFile.chunks.size() == 0)
            throw new ParserException(inEDLFile.filename, "No chunks found");

        if(normalizeFeatures)
        {
//            inEDLFile = (EDLFile) inEDLFile.clone();
            inEDLFile.normalizeFeatures();
            inEDLFile.applyFeatureWeights();
        }

        progress.setMaximum(inEDLFile.chunks.size());
    }

	//super complicated compose() method!!!    
    public EDLFile compose()
    {
    	outFile.chunks = inEDLFile.chunks;

        // outFile now contains some chunks.
        outFile.haveReadFile = true;

        return outFile;
    } 

    public static void main(String[] args) 
    {
        EDLComposer m = new EDLComposer(args);
        long startTime = System.currentTimeMillis();
        m.run();
        System.out.println("Done. Took " +
                           ((System.currentTimeMillis() - startTime)/1000.0)
                           + "s");
        System.exit(0);
    }
}