/*
 * [RightSize.java]
 *
 * Summary: Checks that all images in a directory are of the correct size.
 *
 * Copyright: (c) 2009-2017 Roedy Green, Canadian Mind Products, http://mindprod.com
 *
 * Licence: This software may be copied and used freely for any purpose but military.
 *          http://mindprod.com/contact/nonmil.html
 *
 * Requires: JDK 1.8+
 *
 * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/
 *
 * Version History:
 *  1.0 2009-03-19 initial release
 *  1.1 2014-06-23 add support for *.webp images.
 */
package com.mindprod.rightsize;

import com.mindprod.commandline.CommandLine;
import com.mindprod.common18.EIO;
import com.mindprod.common18.ImageInfo;
import com.mindprod.fastcat.FastCat;
import com.mindprod.filter.AllButSVNDirectoriesFilter;
import com.mindprod.filter.ExtensionListFilter;

import java.io.File;

import static java.lang.System.*;

/**
 * Checks that all images in a directory are of the correct size.
 * <p/>
 * For ASP PAD screenshots might use:
 * rightisize.jar 200 200 600 800 screenshotdir
 * or
 * rightsize.jar 100 100 600 800 screenshotdir  for bare minium
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 1.1 2014-06-23 add support for *.webp images.
 * @since 2009-03-19
 */
public class RightSize
    {
    private static final int FIRST_COPYRIGHT_YEAR = 2009;

    /**
     * undisplayed copyright notice
     */
    private static final String EMBEDDED_COPYRIGHT =
            "Copyright: (c) 2009-2017 Roedy Green, Canadian Mind Products, http://mindprod.com";

    private static final String RELEASE_DATE = "2014-06-23";

    /**
     * how to use the command line
     */
    private static final String USAGE = "\nRightsize needs min-width min-height max-width max-height files and dirs of "
                                        + "png/jpg/jpeg/gif/webp images to check using the -s switch.";

    /**
     * embedded version string.
     */
    private static final String VERSION_STRING = "1.1";

    /**
     * Check that all images in a directory are of the correct size.
     *
     * @param args min-width min-height max-width max-height directories/files to check
     */
    public static void main( String[] args )
        {
        if ( args.length < 5 )
            {
            err.println( USAGE );
            System.exit( 1 );
            }
        final int minWidth = Integer.parseInt( args[ 0 ] );
        final int minHeight = Integer.parseInt( args[ 1 ] );
        final int maxWidth = Integer.parseInt( args[ 2 ] );
        final int maxHeight = Integer.parseInt( args[ 3 ] );
        // avoid reprocessing first 4 parms.
        args[ 0 ] = null;
        args[ 1 ] = null;
        args[ 2 ] = null;
        args[ 3 ] = null;
        // Java does not support webp but ImageInfo does.  We can find size, but no more.
        CommandLine commandLine = new
                CommandLine( args,
                new AllButSVNDirectoriesFilter(),
                new ExtensionListFilter( "png", "jpg", "jpeg", "gif", "webp" ) );
        if ( commandLine.size() == 0 )
            {
            throw new IllegalArgumentException( "No files found to process" + USAGE );
            }
        for ( File file : commandLine )
            {
            int[] dim;
            final String fn = EIO.getCanOrAbsPath( file );
            try
                {
                dim = ImageInfo.getImageDimensions( fn );
                }
            catch ( Exception e )
                {
                out.println( "Problems with " + fn + ". It if may be corrupt or locked. " + e.getMessage() );
                continue;
                }
            final int width = dim[ 0 ];
            final int height = dim[ 1 ];
            final FastCat sb = new FastCat( 15 );
            if ( width == 0 )
                {
                sb.append( " has zero size." );
                }
            if ( width < minWidth )
                {
                sb.append( " is less than ", minWidth, " pixels wide." );
                }
            if ( width > maxWidth )
                {
                sb.append( " is greater than ", maxWidth, " pixels wide." );
                }
            if ( height < minHeight )
                {
                sb.append( " is less than ", minHeight, " pixels tall." );
                }
            if ( height > maxHeight )
                {
                sb.append( " is greater than ", maxHeight, " pixels tall." );
                }
            if ( sb.length() > 0 )
                {
                out.println( "At " + width + " x " + height + ", " + fn + " " + sb.toString() );
                }
            }
        }
    }