package jxl.demo;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import jxl.WorkbookSettings;
import jxl.biff.Type;
import jxl.read.biff.BiffException;
import jxl.read.biff.BiffRecordReader;
import jxl.read.biff.Record;

class BiffDump {
  private BufferedWriter writer;
  
  private BiffRecordReader reader;
  
  private HashMap recordNames;
  
  private int xfIndex;
  
  private int fontIndex;
  
  private int bofs;
  
  private static final int bytesPerLine = 16;
  
  public BiffDump(File file, OutputStream os) throws IOException, BiffException {
    this.writer = new BufferedWriter(new OutputStreamWriter(os));
    FileInputStream fis = new FileInputStream(file);
    jxl.read.biff.File f = new jxl.read.biff.File(fis, new WorkbookSettings());
    this.reader = new BiffRecordReader(f);
    buildNameHash();
    dump();
    this.writer.flush();
    this.writer.close();
    fis.close();
  }
  
  private void buildNameHash() {
    this.recordNames = new HashMap(50);
    this.recordNames.put(Type.BOF, "BOF");
    this.recordNames.put(Type.EOF, "EOF");
    this.recordNames.put(Type.FONT, "FONT");
    this.recordNames.put(Type.SST, "SST");
    this.recordNames.put(Type.LABELSST, "LABELSST");
    this.recordNames.put(Type.WRITEACCESS, "WRITEACCESS");
    this.recordNames.put(Type.FORMULA, "FORMULA");
    this.recordNames.put(Type.FORMULA2, "FORMULA");
    this.recordNames.put(Type.XF, "XF");
    this.recordNames.put(Type.MULRK, "MULRK");
    this.recordNames.put(Type.NUMBER, "NUMBER");
    this.recordNames.put(Type.BOUNDSHEET, "BOUNDSHEET");
    this.recordNames.put(Type.CONTINUE, "CONTINUE");
    this.recordNames.put(Type.FORMAT, "FORMAT");
    this.recordNames.put(Type.EXTERNSHEET, "EXTERNSHEET");
    this.recordNames.put(Type.INDEX, "INDEX");
    this.recordNames.put(Type.DIMENSION, "DIMENSION");
    this.recordNames.put(Type.ROW, "ROW");
    this.recordNames.put(Type.DBCELL, "DBCELL");
    this.recordNames.put(Type.BLANK, "BLANK");
    this.recordNames.put(Type.MULBLANK, "MULBLANK");
    this.recordNames.put(Type.RK, "RK");
    this.recordNames.put(Type.RK2, "RK");
    this.recordNames.put(Type.COLINFO, "COLINFO");
    this.recordNames.put(Type.LABEL, "LABEL");
    this.recordNames.put(Type.SHAREDFORMULA, "SHAREDFORMULA");
    this.recordNames.put(Type.CODEPAGE, "CODEPAGE");
    this.recordNames.put(Type.WINDOW1, "WINDOW1");
    this.recordNames.put(Type.WINDOW2, "WINDOW2");
    this.recordNames.put(Type.MERGEDCELLS, "MERGEDCELLS");
    this.recordNames.put(Type.HLINK, "HLINK");
    this.recordNames.put(Type.HEADER, "HEADER");
    this.recordNames.put(Type.FOOTER, "FOOTER");
    this.recordNames.put(Type.INTERFACEHDR, "INTERFACEHDR");
    this.recordNames.put(Type.MMS, "MMS");
    this.recordNames.put(Type.INTERFACEEND, "INTERFACEEND");
    this.recordNames.put(Type.DSF, "DSF");
    this.recordNames.put(Type.FNGROUPCOUNT, "FNGROUPCOUNT");
    this.recordNames.put(Type.COUNTRY, "COUNTRY");
    this.recordNames.put(Type.TABID, "TABID");
    this.recordNames.put(Type.PROTECT, "PROTECT");
    this.recordNames.put(Type.SCENPROTECT, "SCENPROTECT");
    this.recordNames.put(Type.OBJPROTECT, "OBJPROTECT");
    this.recordNames.put(Type.WINDOWPROTECT, "WINDOWPROTECT");
    this.recordNames.put(Type.PASSWORD, "PASSWORD");
    this.recordNames.put(Type.PROT4REV, "PROT4REV");
    this.recordNames.put(Type.PROT4REVPASS, "PROT4REVPASS");
    this.recordNames.put(Type.BACKUP, "BACKUP");
    this.recordNames.put(Type.HIDEOBJ, "HIDEOBJ");
    this.recordNames.put(Type.NINETEENFOUR, "1904");
    this.recordNames.put(Type.PRECISION, "PRECISION");
    this.recordNames.put(Type.BOOKBOOL, "BOOKBOOL");
    this.recordNames.put(Type.STYLE, "STYLE");
    this.recordNames.put(Type.EXTSST, "EXTSST");
    this.recordNames.put(Type.REFRESHALL, "REFRESHALL");
    this.recordNames.put(Type.CALCMODE, "CALCMODE");
    this.recordNames.put(Type.CALCCOUNT, "CALCCOUNT");
    this.recordNames.put(Type.NAME, "NAME");
    this.recordNames.put(Type.MSODRAWINGGROUP, "MSODRAWINGGROUP");
    this.recordNames.put(Type.MSODRAWING, "MSODRAWING");
    this.recordNames.put(Type.OBJ, "OBJ");
    this.recordNames.put(Type.USESELFS, "USESELFS");
    this.recordNames.put(Type.SUPBOOK, "SUPBOOK");
    this.recordNames.put(Type.LEFTMARGIN, "LEFTMARGIN");
    this.recordNames.put(Type.RIGHTMARGIN, "RIGHTMARGIN");
    this.recordNames.put(Type.TOPMARGIN, "TOPMARGIN");
    this.recordNames.put(Type.BOTTOMMARGIN, "BOTTOMMARGIN");
    this.recordNames.put(Type.HCENTER, "HCENTER");
    this.recordNames.put(Type.VCENTER, "VCENTER");
    this.recordNames.put(Type.ITERATION, "ITERATION");
    this.recordNames.put(Type.DELTA, "DELTA");
    this.recordNames.put(Type.SAVERECALC, "SAVERECALC");
    this.recordNames.put(Type.PRINTHEADERS, "PRINTHEADERS");
    this.recordNames.put(Type.PRINTGRIDLINES, "PRINTGRIDLINES");
    this.recordNames.put(Type.SETUP, "SETUP");
    this.recordNames.put(Type.SELECTION, "SELECTION");
    this.recordNames.put(Type.STRING, "STRING");
    this.recordNames.put(Type.FONTX, "FONTX");
    this.recordNames.put(Type.IFMT, "IFMT");
    this.recordNames.put(Type.WSBOOL, "WSBOOL");
    this.recordNames.put(Type.GRIDSET, "GRIDSET");
    this.recordNames.put(Type.REFMODE, "REFMODE");
    this.recordNames.put(Type.GUTS, "GUTS");
    this.recordNames.put(Type.EXTERNNAME, "EXTERNNAME");
    this.recordNames.put(Type.FBI, "FBI");
    this.recordNames.put(Type.CRN, "CRN");
    this.recordNames.put(Type.HORIZONTALPAGEBREAKS, "HORIZONTALPAGEBREAKS");
    this.recordNames.put(Type.VERTICALPAGEBREAKS, "VERTICALPAGEBREAKS");
    this.recordNames.put(Type.DEFAULTROWHEIGHT, "DEFAULTROWHEIGHT");
    this.recordNames.put(Type.TEMPLATE, "TEMPLATE");
    this.recordNames.put(Type.PANE, "PANE");
    this.recordNames.put(Type.SCL, "SCL");
    this.recordNames.put(Type.PALETTE, "PALETTE");
    this.recordNames.put(Type.PLS, "PLS");
    this.recordNames.put(Type.OBJPROJ, "OBJPROJ");
    this.recordNames.put(Type.DEFCOLWIDTH, "DEFCOLWIDTH");
    this.recordNames.put(Type.ARRAY, "ARRAY");
    this.recordNames.put(Type.WEIRD1, "WEIRD1");
    this.recordNames.put(Type.BOOLERR, "BOOLERR");
    this.recordNames.put(Type.SORT, "SORT");
    this.recordNames.put(Type.BUTTONPROPERTYSET, "BUTTONPROPERTYSET");
    this.recordNames.put(Type.NOTE, "NOTE");
    this.recordNames.put(Type.TXO, "TXO");
    this.recordNames.put(Type.DV, "DV");
    this.recordNames.put(Type.DVAL, "DVAL");
    this.recordNames.put(Type.SERIES, "SERIES");
    this.recordNames.put(Type.SERIESLIST, "SERIESLIST");
    this.recordNames.put(Type.SBASEREF, "SBASEREF");
    this.recordNames.put(Type.CONDFMT, "CONDFMT");
    this.recordNames.put(Type.CF, "CF");
    this.recordNames.put(Type.FILTERMODE, "FILTERMODE");
    this.recordNames.put(Type.AUTOFILTER, "AUTOFILTER");
    this.recordNames.put(Type.AUTOFILTERINFO, "AUTOFILTERINFO");
    this.recordNames.put(Type.XCT, "XCT");
    this.recordNames.put(Type.UNKNOWN, "???");
  }
  
  private void dump() throws IOException {
    Record r = null;
    boolean cont = true;
    while (this.reader.hasNext() && cont) {
      r = this.reader.next();
      cont = writeRecord(r);
    } 
  }
  
  private boolean writeRecord(Record r) throws IOException {
    boolean cont = true;
    int pos = this.reader.getPos();
    int code = r.getCode();
    if (this.bofs == 0)
      cont = (r.getType() == Type.BOF); 
    if (!cont)
      return cont; 
    if (r.getType() == Type.BOF)
      this.bofs++; 
    if (r.getType() == Type.EOF)
      this.bofs--; 
    StringBuffer buf = new StringBuffer();
    writeSixDigitValue(pos, buf);
    buf.append(" [");
    buf.append(this.recordNames.get(r.getType()));
    buf.append("]");
    buf.append("  (0x");
    buf.append(Integer.toHexString(code));
    buf.append(")");
    if (code == Type.XF.value) {
      buf.append(" (0x");
      buf.append(Integer.toHexString(this.xfIndex));
      buf.append(")");
      this.xfIndex++;
    } 
    if (code == Type.FONT.value) {
      if (this.fontIndex == 4)
        this.fontIndex++; 
      buf.append(" (0x");
      buf.append(Integer.toHexString(this.fontIndex));
      buf.append(")");
      this.fontIndex++;
    } 
    this.writer.write(buf.toString());
    this.writer.newLine();
    byte[] standardData = new byte[4];
    standardData[0] = (byte)(code & 0xFF);
    standardData[1] = (byte)((code & 0xFF00) >> 8);
    standardData[2] = (byte)(r.getLength() & 0xFF);
    standardData[3] = (byte)((r.getLength() & 0xFF00) >> 8);
    byte[] recordData = r.getData();
    byte[] data = new byte[standardData.length + recordData.length];
    System.arraycopy(standardData, 0, data, 0, standardData.length);
    System.arraycopy(recordData, 0, data, standardData.length, recordData.length);
    int byteCount = 0;
    int lineBytes = 0;
    while (byteCount < data.length) {
      buf = new StringBuffer();
      writeSixDigitValue(pos + byteCount, buf);
      buf.append("   ");
      lineBytes = Math.min(16, data.length - byteCount);
      for (int j = 0; j < lineBytes; j++) {
        writeByte(data[j + byteCount], buf);
        buf.append(' ');
      } 
      if (lineBytes < 16)
        for (int k = 0; k < 16 - lineBytes; k++)
          buf.append("   ");  
      buf.append("  ");
      for (int i = 0; i < lineBytes; i++) {
        char c = (char)data[i + byteCount];
        if (c < ' ' || c > 'z')
          c = '.'; 
        buf.append(c);
      } 
      byteCount += lineBytes;
      this.writer.write(buf.toString());
      this.writer.newLine();
    } 
    return cont;
  }
  
  private void writeSixDigitValue(int pos, StringBuffer buf) {
    String val = Integer.toHexString(pos);
    for (int i = 6; i > val.length(); i--)
      buf.append('0'); 
    buf.append(val);
  }
  
  private void writeByte(byte val, StringBuffer buf) {
    String sv = Integer.toHexString(val & 0xFF);
    if (sv.length() == 1)
      buf.append('0'); 
    buf.append(sv);
  }
}