import java.io.*;
import java.util.zip.*;
import java.math.*;
class Repack2 {

public static byte[] rawData;

	public static void main ( String args[] ) throws IOException {

	if ( args.length != 2 && args.length != 3 && args.length != 1) {
		
	
	//System.out.print("\n     Repack 2.0        by CplFilth\n");
	//System.out.print("\n     Usage     : repack TxtFileIn AdbFileOut");
	//System.out.print("\n     For example : repack elements.txt elements.adb\n");
	System.out.print("\n     Repack v. 2.02     © CplFilth\n\n     Usage : \n     1. Repack txtFileIn\n     For example : Repack elements.txt\n     Outputs to the correspondingly named .adb file \n\n     2. Repack txtFile adbFile\n     For example : Repack c:\\temp\\elements.txt e:\\elements.adb\n\n");
	
	System.exit(0); 
	
									}
	String copyright = new String("Copyright (c) 1999 Atomic Games, Inc.");
	
	int index=0;
	String cha=new String(".");
	File txtFile = new File(args[0]);	
	String txtFileString = txtFile.getName();
	String adbFileString = "";
	while (  cha.compareTo(txtFileString.substring(index,index+1)) != 0) {
		adbFileString = adbFileString + txtFileString.substring(index,index+1);
		index++;
			} 	
	
	
	File adbFile;
	if ( args.length > 1 ) { adbFile = new File(args[1]); }
		else { adbFile = new File(adbFileString + ".adb"); }
	
	
	
	
	DataInputStream read = new DataInputStream(new FileInputStream(txtFile));
	
	int txtLength = read.available();
	rawData = new byte[txtLength];
	read.readFully(rawData);
	read.close();
	int fileType=0;
	if ( args.length == 3 ) fileType = Integer.parseInt(args[2]);
	else {
	if ( txtLength % 156 == 0 && test(1) == true ) fileType = 1;
	if (  ( ( txtLength % 108 == 0 && test(2) == true ) || ( txtLength % 124 == 0 && test(2) == true ) ) ) fileType = 2;
	if ( (txtLength % 380 == 0 && test(3) == true ) || ( txtLength % 384 == 0 && test(3) == true ) ) fileType = 3;
	if ( ( txtLength % 452 == 0 && test(4) == true ) || ( txtLength % 468 == 0 && test(4) == true)) if (fileType != 1 ) fileType = 4;
	if ( txtLength % 424 == 0 && test(5) == true ) fileType = 5;
	if ( txtLength % 168 == 0 && test(6) == true ) fileType = 6;
	if ( txtLength % 260 == 0 && test(7) == true ) fileType = 7;
	}
 	//System.out.println(fileType);
	if ( fileType == 0 ) { System.out.print("\n     Could not determine file type.\n     Possible cause : Filesize incorrect");
				System.exit(0);
				}
	
	
	ByteArrayInputStream in = new ByteArrayInputStream(rawData);
	ByteArrayOutputStream compStream = new ByteArrayOutputStream(); 
        ZipOutputStream out = new ZipOutputStream(compStream);
        
    // Add ZIP entry to output stream.
        int entryLength=0;
        try {
        ZipEntry aZipEntry = new ZipEntry(txtFileString);      
        out.putNextEntry(aZipEntry);                
        byte[] bu = new byte[1024];
        int len;
	
        while ((len = in.read(bu)) != -1 ) 
	{            out.write(bu,0,len);
		
        }            out.closeEntry();
       entryLength = (int) aZipEntry.getCompressedSize();
 	out.close(); 
       in.close();
    	} catch (IOException e) {    }
	
	
	byte[] zipData = new byte[compStream.size()];
	
	zipData = compStream.toByteArray();

	//in.close();
	//out.close();
	compStream.close();
	
	DataInputStream compIn = new DataInputStream(new ByteArrayInputStream(zipData));
	byte[] compData = new byte[entryLength];
	compIn.skipBytes(30+CountChars(txtFileString));
	compIn.readFully(compData);
	compIn.close();
	
	
	DataInputStream adlerIn = new DataInputStream(new ByteArrayInputStream(rawData));
	Adler32 crcValue  ;
	crcValue = new Adler32();    
      	int ind;
	for ( ind = 0; ind < rawData.length ; ind++ ) {
		
		crcValue.update(adlerIn.read());
		
		}
	long checksum=0;
	checksum = crcValue.getValue();
	adlerIn.close();
	
	RandomAccessFile adbOut = new RandomAccessFile(adbFile,"rw");
	
	adbOut.writeBytes(copyright);
	adbOut.write(0);
	int entries=0;
	
	if ( fileType == 1 ) { entries = txtLength / 156;adbOut.writeShort(shortIntelToMac(entries)); }  // elements # 2 bytes
	
	if ( fileType == 2 & txtLength % 108 == 0 ) { entries = txtLength / 108;adbOut.write((entries));} // soldiers # 4 bytes
	if ( fileType == 2 & txtLength % 124 == 0 ) { entries = txtLength / 124;adbOut.write((entries));} // soldiers # 4 bytes
	
	if ( fileType == 3 & txtLength % 380 == 0 ) { entries = txtLength / 380;adbOut.write(entries);} // weapons # 1 byte
	if ( fileType == 3 & txtLength % 384 == 0 ) { entries = txtLength / 384;adbOut.writeInt(intelToMac(entries));} // weapons # 4 bytes
	
	if ( fileType == 4 & txtLength % 452 == 0) { entries = txtLength / 452;adbOut.write(entries);}  // vehicles # 1 byte
	if ( fileType == 4 & txtLength % 468 == 0) { entries = txtLength / 468;adbOut.write(entries);}  // vehicles # 1 byte
	
	if ( fileType == 5 ) { entries = txtLength / 424;adbOut.writeInt( intelToMac(rawData[rawData.length-424]+1));adbOut.writeInt(intelToMac(entries));}  // fpools # 4 bytes
	if ( fileType == 6 ) { entries = txtLength / 168;adbOut.writeInt(intelToMac(entries));}  // bgroups # 4 bytes
	if ( fileType == 7 ) { entries = txtLength / 260;adbOut.writeShort(shortIntelToMac(entries));} // teams # 2 bytes
	
	adbOut.writeInt(intelToMac(entryLength+6));
	adbOut.write(0x78);adbOut.write(0x9C);
	adbOut.write(compData);
	
	adbOut.writeInt(((int) checksum));
	
	if  (fileType==7) { 
			adbOut.write(38);adbOut.write(0);adbOut.write(0);adbOut.write(0);	
			adbOut.write(120);adbOut.write(156);adbOut.write(237);adbOut.write(193);
			adbOut.write(49);adbOut.write(1);adbOut.write(0);adbOut.write(0);
			adbOut.write(0);adbOut.write(194);adbOut.write(160);adbOut.write(245);
			adbOut.write(79);adbOut.write(109);adbOut.write(9);adbOut.write(79);
			adbOut.write(160);adbOut.write(0);adbOut.write(0);adbOut.write(0);
			adbOut.write(0);adbOut.write(0);adbOut.write(0);adbOut.write(0);
			adbOut.write(0);adbOut.write(0);adbOut.write(0);adbOut.write(0);
			adbOut.write(0);adbOut.write(0);adbOut.write(0);adbOut.write(0);
			adbOut.write(110);adbOut.write(6);adbOut.write(60);adbOut.write(195);
			adbOut.write(0);adbOut.write(1);
		       }
		       
	adbOut.writeBytes(";)");	    
	adbOut.close();
									
									}

public static int CountChars(String stringin) throws IOException
{
	

	String stringhere = stringin;
	int count=0;
	int tempo;
	StringReader thisString = new StringReader(stringhere);
 
	while ( (tempo = thisString.read() ) != -1 ) {
		count++; }
		thisString.close();
return(count);
}  

public static boolean test(int type) {
		boolean test=true;
		int dataL = rawData.length;
		int i;
		if ( type == 1 )
			{
			if ( dataL % 108 == 0  || dataL % 124 == 0 ) if ( test(2) == true) return(false);
			if ( dataL % 380 == 0  || dataL % 384 == 0 ) if ( test(3) == true) return(false);
			if ( dataL % 452 == 0  || dataL % 468 == 0 ) if ( test(4) == true) return(false);
			//if ( test(5) == true ) return(false);
			if ( test(6) == true ) return(false);
			if ( test(7) == true ) return(false);
			}
		if ( type == 2 )
			{
				for ( i = 0 ; i < 5 ; i++ )
				{
					if ( dataL % 108 == 0 && rawData[i*108] != i ) return(false);	
					if ( dataL % 124 == 0 && rawData[i*124] != i ) return(false);	
					
				}	
			}
		if ( type == 3 )
			{
				for ( i = 0 ; i < 5 ; i++ )
				{
				if ( ( dataL % 380 == 0 ) && rawData[i*380+20] != i ) return(false);	
				if ( ( dataL % 384 == 0 ) && rawData[i*384+20] != i ) return(false);
				}	
			}
		if ( type == 4 )
			{
				for ( i = 0 ; i < 5 ; i++ )
				{
				if ( dataL % 452 == 0 && rawData[i*452+37] != i ) return(false);	
				if ( dataL % 468 == 0 && rawData[i*468+37] != i ) return(false);
				
				}	
			}
		
		if ( type == 5 )
			{
				for ( i = 0 ; i < 5 ; i++ )
				{
				if ( dataL % 53000 == 0 ) if ( dataL > i*53000) { if ( rawData[i*53000] != i ) return(false);} else return(false); 
				if ( dataL % 33920 == 0 ) if ( dataL > i*33920) { if ( rawData[i*33920] != i ) return(false);} else return(false); 
				}	
			}
		if ( type == 6 )
			{
				for ( i = 0 ; i < 5 ; i++ )
				{
					if ( rawData[i*168] != i ) return(false);	
				}	
			}
			
		if ( type == 7 )
			{
				for ( i = 0 ; i < 5 ; i++ )
				{
					if ( rawData[i*260+100] != i ) return(false);	
				}	
			}			
			
		return(test);
		
				}

public static int intelToMac(int i) {
         		int byte0 = i & 0xff;
         		int byte1 = (i>>8) & 0xff;
         		int byte2 = (i>>16) & 0xff;
         		int byte3 = (i>>24) & 0xff;
         		// swap the byte order
         		return (byte0<<24) | (byte1<<16) | (byte2<<8) | byte3;
     					}
     			public static int shortIntelToMac(int i) {
         		int byte0 = i & 0xff;
         		int byte1 = (i>>8) & 0xff;
         		// swap the byte order
         		return (byte0<<8) | byte1 ;
     					}

}