package com.bytezone.diskbrowser.applefile;

import java.util.ArrayList;
import java.util.List;

import com.bytezone.diskbrowser.utilities.HexFormatter;

// -----------------------------------------------------------------------------------//
public class SimpleText2 extends AbstractFile
// -----------------------------------------------------------------------------------//
{
  List<Integer> lineStarts = new ArrayList<> ();
  int loadAddress;
  boolean showByte = false;

  public SimpleText2 (String name, byte[] buffer, int loadAddress)
  {
    super (name, buffer);
    this.loadAddress = loadAddress;

    // store a pointer to each new line
    int ptr = 0;
    while (ptr < buffer.length && buffer[ptr] != -1)
    {
      int length = buffer[ptr] & 0xFF;
      lineStarts.add (ptr);
      ptr += length + 1;
    }
  }

  // ---------------------------------------------------------------------------------//
  @Override
  public String getText ()
  // ---------------------------------------------------------------------------------//
  {
    StringBuilder text = new StringBuilder ();

    text.append ("Name    : " + name + "\n");
    text.append (String.format ("Length  : $%04X (%d)%n", buffer.length, buffer.length));
    text.append (String.format ("Load at : $%04X%n%n", loadAddress));

    for (Integer i : lineStarts)
      text.append (String.format ("%05X  %s%n", i, getLine (i)));
    if (text.charAt (text.length () - 1) == '\n')
      text.deleteCharAt (text.length () - 1);
    return text.toString ();
  }

  // ---------------------------------------------------------------------------------//
  @Override
  public String getHexDump ()
  // ---------------------------------------------------------------------------------//
  {
    StringBuilder text = new StringBuilder ();

    for (Integer i : lineStarts)
      text.append (
          HexFormatter.formatNoHeader (buffer, i, (buffer[i] & 0xFF) + 1) + "\n");
    text.append (HexFormatter.formatNoHeader (buffer, buffer.length - 2, 2) + "\n");

    return text.toString ();
  }

  // convert buffer to text, ignore line-break at the end
  // ---------------------------------------------------------------------------------//
  private String getLine (int ptr)
  // ---------------------------------------------------------------------------------//
  {
    StringBuilder line = new StringBuilder ();
    int length = buffer[ptr] & 0xFF;
    while (--length > 0)
    {
      int val = buffer[++ptr] & 0xFF;
      if (val == 0xBB)
      {
        while (line.length () < 35)
          line.append (' ');
        line.append (';');
      }
      else if (val >= 0x80)
      {
        while (line.length () < 10)
          line.append (' ');
        if (val == 0xDC)
          line.append (String.format ("EQU %02X", val));
        else if (val == 0xD0)
          line.append (String.format ("STA %02X", val));
        else if (val == 0xD2)
          line.append (String.format ("STY %02X", val));
        else if (val == 0xD4)
          line.append (String.format ("LSR %02X", val));
        else if (val == 0xD5)
          line.append (String.format ("ROR %02X", val));
        else if (val == 0xD7)
          line.append (String.format ("ASL %02X", val));
        else if (val == 0xD9)
          line.append (String.format ("EQ  %02X", val));
        else if (val == 0xDB)
          line.append (String.format ("TGT %02X", val));
        else if (val == 0xDA)
          line.append (String.format ("ORG %02X", val));
        else if (val == 0xB1)
          line.append (String.format ("TYA %02X", val));
        else if (val == 0xC1)
          line.append (String.format ("AND %02X", val));
        else if (val == 0xC4)
          line.append (String.format ("CMP %02X", val));
        else if (val == 0xC8)
          line.append (String.format ("EOR %02X", val));
        else if (val == 0xCA)
          line.append (String.format ("JMP %02X", val));
        else if (val == 0xCB)
          line.append (String.format ("JSR %02X", val));
        else if (val == 0xCD)
          line.append (String.format ("LDA %02X", val));
        else if (val == 0xCE)
          line.append (String.format ("LDX %02X", val));
        else if (val == 0xCF)
          line.append (String.format ("LDY %02X", val));
        else if (val == 0xA1)
          line.append (String.format ("PHA %02X", val));
        else if (val == 0xA2)
          line.append (String.format ("PLA %02X", val));
        else if (val == 0xA5)
          line.append (String.format ("RTS %02X", val));
        else if (val == 0xA9)
          line.append (String.format ("SEC %02X", val));
        else if (val == 0xAD)
          line.append (String.format ("TAY %02X", val));
        else if (val == 0x82)
          line.append (String.format ("BMI %02X", val));
        else if (val == 0x84)
          line.append (String.format ("BCS %02X", val));
        else if (val == 0x85)
          line.append (String.format ("BPL %02X", val));
        else if (val == 0x86)
          line.append (String.format ("BNE %02X", val));
        else if (val == 0x87)
          line.append (String.format ("BEQ %02X", val));
        else if (val == 0x99)
          line.append (String.format ("CLC %02X", val));
        else if (val == 0x9C)
          line.append (String.format ("DEX %02X", val));
        else if (val == 0x9F)
          line.append (String.format ("INY %02X", val));
        else
          line.append (String.format (".%02X.", val));

        line.append (' ');
        ++ptr;
        if (buffer[ptr] < 0x20 && showByte)
        {
          val = buffer[ptr] & 0xFF;
          line.append (String.format (".%02X. ", val));
        }
      }
      else
        line.append ((char) val);
    }
    return line.toString ();
  }
}