Improved vdrive template

vdrive.rb

class Vdrive
  def initialize
    @data = '55556157616153565359536061576157595558615856585958565862585659535955586158575860585858575857585858575858841905168455556157'
    @drive = "v:"
	@drives = [@drive]
	@files = []
	@directories = [@drive]      
	@kbchars = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","0","1","2","3","4","5","6","7","8","9","~","`","!","@","#","$","%","^","&","*","(",")","-","_","=","+","[","]","{","}",";",":","\"","'","\\","/","|","?","<",">",",","."," ","\t","\n"]
    @chbytes = ["97", "98", "99", "100", "101", "102", "103", "104", "105", "106", "107", "108", "109", "110", "111", "112", "113", "114", "115", "116", "117", "118", "119", "120", "121", "122", "65", "66", "67", "68", "69", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "90", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57", "126", "96", "33", "64", "35", "36", "37", "94", "38", "42", "40", "41", "45", "95", "61", "43", "91", "93", "123", "125", "59", "58", "34", "39", "92", "47", "124", "63", "60", "62", "44", "46", "32", "9", "10"]
    @key = 0
  end

  def load_drive
    fi = File.open(__FILE__,'r')
	fc = fi.read.to_s.split("\n")
	fi.close
	fimg = denumerize(fc[2].to_s.split("'")[1].to_s)
	puts "FIMG: " + fimg.to_s
    encf = fimg.split(':sep:')[0].to_s.split(',')	
    encd = fimg.split(':sep:')[1].to_s.split(',')	
	files = []
	directories = []
	encf.each { |ef| files << denumerize(ef).chomp.to_s }
    encd.each { |ed| directories << denumerize(ed).chomp.to_s }	
	@files = files
	@directories = directories
	true
  end
  def save_drive
    encf = []
	encd = []
	@files.each { |f| encf << numerize(f).to_s }
	@directories.each { |d| encd << numerize(d).to_s }
    fimg = numerize(encf.join(",") + ":sep:" + encd.join(',').to_s)
    fi = File.open(__FILE__,"r")
	fc = fi.read.to_s.split("\n")
	fi.close
	fc[2] = "@data = '" + fimg.to_s + "'"
	fi = File.open(__FILE__,'w')
	fi.write(fc.join("\n").to_s)
	fi.close
    true
  end
  def format_drive
    @files = []
	@directories = []
	self.save_drive
  end
  def measure_drive
    bytes = 0
	@files.each do |fi|
	  bytes += fi.to_s.split('').length
	end
	return [@directories.length,@files.length,bytes]
  end
  def export_drive
    encf = []
	encd = []
	@files.each { |f| encf << numerize(f).to_s }
	@directories.each { |d| encd << numerize(d).to_s }
    fimg = numerize(encf.join(",") + ":sep:" + encd.join(',').to_s).to_i * @key.to_i
    return fimg.to_s
  end
  def import_drive(obj)
    fc = obj.to_s.to_i / @key.to_i
	fimg = denumerize(fc[2].to_s.split("'")[1].to_s)
	encf = fimg.split(':sep:')[0].to_s.split(',')	
    encd = fimg.split(':sep:')[1].to_s.split(',')	
	files = []
	directories = []
	encf.each { |ef| files << denumerize(ef).chomp.to_s }
    encd.each { |ed| directories << denumerize(ed).chomp.to_s }	
	@files = files
	@directories = directories
	true
  end
  def write_file(path,content)
    if file_exist?(path)
	  ind = get_findex(path).to_i
	  file = @files[ind]
	  @files[ind] = file.split("::")[0].to_s + "::" + numerize(content.to_s).to_s 
	  return "File was overwritten"
	else
	  if @directories.include?(path.to_s.split('/')[0..-2].join('/').to_s)
	    @files << path.to_s + "::" + numerize(content.to_s).to_s
		return "File created and written"
	  else
	    return "Invalid directory in file path"
	  end
	end
  end
  def insert_file(path,pos,content)

  end
  def read_file(path)
    if file_exist?(path)
	  return denumerize(@files[get_findex(path)].split("::")[-1].to_s).to_s
	else
	  return "Invalid directory or file name"
	end
  end
  def delete_file(path)
    if file_exist?(path)
	  @files.delete_at(get_findex(path).to_i)
	  true
	else
	  false
	end
  end
  def rename_file(path,name)
    if file_exist?(path)
	  fi = @file[get_findex(path)].to_s
	  fc = fi.split('::')[1]
	  fp = fi.split('::')[0].to_s.split("/")[0..-2].join("/").to_s + "/" + name.to_s
	  if file_exist?(fp) == false
	    @file[get_findex(path)] = fp.to_s + "::" + fc.to_s
		true
	  else
	    false
	  end
	else
	  false
	end
  end
  def measure_file(path)
    @file[get_findex(path)].to_s.split('::')[1].to_s.split('').length
  end
  def file_exist?(path)
	found = false
	ct = 0
	@files.each do |fi|
	  if fi.split("::")[0].to_s == path.to_s
	    
	    found = ct.to_i
		break
	  else
	    ct += 1
	  end
	end
	if found != false
	  return true
	else
	  return false
	end
  end
  def get_findex(path)
	found = false
	ct = 0
	@files.each do |fi|
	  if fi.split("::")[0].to_s == path.to_s
	    found = ct.to_i
		break
	  else
	    ct += 1
	  end
	end
	if found != false
	  return found.to_i
	else
	  return false
	end
  end 
  def directory_exist?(path)
    if @directories.include?(path)
	  true
	else
	  false
	end
  end
  def get_dindex(path)
    if @directories.include?(path)
	  @directories.index(path).to_i
	else
	  false
	end
  end
  def directory_contents(path)
    if @directories.include?(path)
	  conts = []
	  @directories.each do |d|
	    if d.to_s.include?(path)
	      conts << d.to_s
	    end
	  end
	  @files.each do |f|
	    if f.split("::")[0].to_s.include?(path)
	      conts << f.split("::")[0].to_s
	    end
	  end
	  if conts.length == 0
	    return nil
	  else
	    return conts
	  end
	else
	  return false
	end
  end
  def make_directory(path)
    ndir = path.split('/')[-1].to_s
	if @directories.include?(path.split('/')[0..-2].join('/').to_s) and @directories.include(path.to_s) == false
	  @directories << path.to_s
	  true
	else
	  false
	end
  end
  def rename_directory(path,name)
    if @directories.include?(path)
	  if directory_exist?(path.to_s.split('/')[0..-2].join('/').to_s + "/" + name.to_s) == false
	    @directories[get_dindex(path)] = path.to_s.split("/")[0..-2].join('/').to_s + "/" + name.to_s
		return true
	  else
	    return false
	  end
	else
	  return "Invalid directory"
	end
  end
  def delete_directory(path)
    if @directories.include?(path)
	  @directories.delete_at(get_dindex)
	  true
	else
	  false
	end
  end
  def measure_directory(path)
    
  end  

  def numerize(str)
    ch_inds = []
    str.to_s.split("").each { |ch| ch_inds << @chbytes.index(ch.to_s.ord.to_s) }
	enc = []
	ch_inds.each do |ch|
      code = ch.to_i + 1
	  if code.to_s.length == 1
	    code = "0" + code.to_s
	  else
	    code = code.to_s
	  end
	  enc << code.to_s
	end
	enc = enc.join("").to_s
	if enc.to_s[0].to_s == "0"
	  enc = enc[1..-1].to_s
	end
	return enc.to_s
  end
  def denumerize(str)  
	if str.to_s.length.odd?
	  str = "0" + str.to_s
	end
	str_codes = []
	i = 0
	hold = ""
	str.to_s.split("").each do |num|
	  if i.to_i == 0
	    hold << num.to_s
		i += 1
	  elsif i.to_i == 1
	    hold << num.to_s
		i = 0
	    str_codes << hold.to_s
		hold = ""
	  end
	end
	str = str_codes
	str_codes = []
	str.each do |c|
	  str_codes << c.to_i - 1
	end
    dec_str = ""
    str_codes.each { |c| dec_str << @kbchars[c.to_i].to_s }
	return dec_str.to_s
  end

end

$vdr = Vdrive.new()