// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.util;

import org.litesoft.commonfoundation.typeutils.*;
import org.litesoft.server.file.*;

import java.io.*;

public class FileReplacer extends AbstractFileAR {
    public static final String VERSION = "1.5";

    public static final int MAX_FILE_SIZE = 32 * 1024 * 1024;

    public static void main( String[] args )
            throws Exception {
        new FileReplacer().process( "FileReplacer", VERSION, args );
    }

    /**
     * Move Dir - Assume same volume!
     */
    @Override
    protected boolean moveDir( File pSource, File pDestination ) {
        Directories.deleteIfExists( pDestination );
        Directories.moveFile( pSource, pDestination );
        return true;
    }

    /**
     * Move File - Assume same volume!
     */
    @Override
    protected boolean moveFile( File pSource, File pDestination ) {
        FileUtils.deleteIfExists( pDestination );
        Directories.moveFile( pSource, pDestination );
        return true;
    }

    /**
     * Update the existing pDestination from the pSource - Assume NOT the same volume!
     */
    @Override
    protected boolean updateFile( File pSource, File pDestination ) {
        byte[] srcBytes = FileUtils.load( pSource, MAX_FILE_SIZE );
        byte[] dstBytes = FileUtils.load( pDestination, MAX_FILE_SIZE );
        if ( !Bytes.areArraysEqual( srcBytes, dstBytes ) ) {
            FileUtils.deleteIfExists( pDestination );
            FileUtils.store( pDestination, srcBytes );
            return true;
        }
        return false;
    }

    /**
     * Copy the pSource to the pDestination - Assume NOT the same volume!
     */
    @Override
    protected boolean copyAddFile( File pSource, File pDestination ) {
        byte[] zBytes = FileUtils.load( pSource, MAX_FILE_SIZE );
        FileUtils.store( pDestination, zBytes );
        return true;
    }
}