#!/bin/env ruby

# ripxplore.rb
#
# == Synopsis
#
# Manipulate file system images as used by vintage computer emulators#
#
# == Usage
#
# ripxplore.rb [switches] <filename.dsk>
#  -a | --add FILENAME       (*) add file
#  -c | --catalog            display catalog
#  -d | --dump FILENAME      hex dump
#  -D | --diskdump           hex dump of entire disk
#  -e | --extract FILENAME   extract file by name (either to stdout, 
#                            or file specified by --output)
#  -h | --help               display this message
#  -I | --init FILESYSTEM    initialise the disk with the specified filesytem
#                            DSK will be created if it doesn't exist.
#                            FILESYSTEM can be : dos33
#  -l | --list FILENAME      BASIC files are listed, binary files are disassembled
#  -o | --output FILENAME    specify name to save extracted file as
#  -r | --raw                don't convert files to ASCII
#  -S | --showtrace          show full stack trace on any error
#  -t | --filetype FILETYPE  file type for file being added. 
#  -V | --verbose            verbose mode
#  -v | --version            show version number
#
#	files with extension .gz will be read & written using gzip
#	input files can be URLs
#
# Currently supported image formats:
#   DSK images as used by Apple 2 emulators
#   DSK images as used by Tandy CoCo emulators
#   DSK images as used by TI 99/4a emulators
#   JV1 DSK images as used by TRS-80 emulators
#   D64 images as used by C64 emulators
#   ATR images as used by Atari 400/800 emulators
#
#	Currently supported filesystems:
#   Atari DOS            (read only)
#   Apple Pascal         (read only)
#   Apple CP/M           (read only)
#   Apple DOS 3.3        (READ/WRITE)
#   NADOL                (read only)
#   ProDOS 8             (read only)
#   CBM DOS 2.6          (read only)
#   TRS-DOS              (read only)


#pull in the RipXplore lib - we need to give the specific path to it since otherwise on case insensitive OSes (e.g. windows) this file
#will get pulled in instead
require File.expand_path(File.dirname(__FILE__)+"//..//lib")+'//LibRipXplore'


#make sure the relevant folder with our libraries is in the require path
lib_path=File.expand_path(File.dirname(__FILE__)+"//..//lib")
$:.unshift(lib_path) unless $:.include?(lib_path)
require 'rubygems'
require 'optparse'
require 'rdoc_patch' #RDoc::usage patched to work under gem executables


def show_usage
  RDoc::usage_from_file(__FILE__,'Usage')
end

catalog=false
diskdump=false
show_trace=false
output_filename=nil
extract_filename=nil
debug_logging=false
add_filename=nil
add_file_options={}
init_filesystem=nil

extract_mode=:default
opts=OptionParser.new
opts.on("-h","--help") {show_usage}
opts.on("-v","--version") do
    puts File.basename($0)+" "+RipXplore::VERSION
  exit
end
opts.on("-r","--raw") {extract_mode=:raw}
opts.on("-c","--catalog") {catalog=true}
opts.on("-D","--diskdump") {diskdump=true}
opts.on("-l","--list FILENAME",String) do |val| 
  extract_filename=val.upcase
  extract_mode=:list	
end

opts.on("-S","--showtrace") {show_trace=true}

opts.on("-d","--dump FILENAME",String) do |val| 
  extract_filename=val.upcase
  extract_mode=:hex
end
opts.on("-e","--extract FILENAME",String) {|val| extract_filename=val.upcase}
opts.on("-o","--output FILENAME",String) {|val| output_filename=val}
opts.on("-t","--filetype FILETYPE",String) {|val| add_file_options[:filetype]=val}
opts.on("-V","--verbose") {debug_logging=true}

opts.on("-I","--init FILESYSTEM",String) {|val| init_filesystem=val}

opts.on("-a","--add FILENAME",String) {|val| add_filename=val}

filename=opts.parse(ARGV)[0] rescue show_usage
show_usage if (filename.nil?)
  


RipXploreLog.debug_logging if debug_logging 
begin #to wrap a rescue clause
  
  fsimage=nil
  if !init_filesystem.nil? then
    fsimage=RipXplore.create_new(:"#{init_filesystem}")
    fsimage.save_as(filename)
  else
    begin
    fsimage=RipXplore.best_fit_from_filename(filename)
  rescue 
    #if we run dsktool.rb in a batch or shell file iterating over a bunch of dsk files, we may not know what file	
    #has the error
    STDERR << "error while parsing #{filename}\n"
    raise
    end
  end
  output_file= case
    when (output_filename.nil?)  then STDOUT
    else File.open(output_filename,"wb")
  end

  if (diskdump) then
    puts fsimage.to_hex_dump
  end

  if(catalog) then
    
    [:host_system,:image_format,:file_system].each do |att|
      if (fsimage.respond_to?(att)) then    
        puts "#{att.to_s}:\t#{fsimage.send(att)}"
      end 
    end
    puts fsimage.catalog
  end

  if (!add_filename.nil?) then
    filecontents=File.open(add_filename,"rb").read
    new_file=fsimage.add_file(add_file_options[:filetype].to_sym,File.basename(add_filename).upcase,filecontents)
    fsimage.save_as(filename)
  end



  if (!extract_filename.nil?) then
    file=fsimage.files[extract_filename]
    if file.nil? then
      puts "'#{extract_filename}' not found in #{filename}"
    else
      output_file<< case extract_mode
        when :raw then file.contents
        when :hex then file.to_hex_dump
        when :ascii then file.to_ascii          
        when :list then 	
          if file.respond_to?(:to_listing)
            file.to_listing
          elsif file.respond_to?(:to_disassembly)
            file.to_disassembly            
          else
            puts "'#{extract_filename}' can't be listed"
            exit
          end
        else	
          if  file.respond_to?(:to_text)
            file.to_text
          else
            file.contents
          end
      end
    end
  end
rescue
  puts $!
  raise if show_trace
end
# == Author
# Jonno Downes (jonno@jamtronix.com)
#
# == Copyright
# Copyright (c) 2008,2009 Jonno Downes (jonno@jamtronix.com)
#
#Permission is hereby granted, free of charge, to any person obtaining
#a copy of this software and associated documentation files (the
#"Software"), to deal in the Software without restriction, including
#without limitation the rights to use, copy, modify, merge, publish,
#distribute, sublicense, and/or sell copies of the Software, and to
#permit persons to whom the Software is furnished to do so, subject to
#the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.