Class: Sapos::Print::Printer

Inherits:
Object
  • Object
show all
Defined in:
lib/sapos/print/printer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Printer

Returns a new instance of Printer.



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# File 'lib/sapos/print/printer.rb', line 8

def initialize(config)
  @config = config
end

Instance Attribute Details

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/sapos/print/printer.rb', line 5

def config
  @config
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/sapos/print/printer.rb', line 6

def name
  @name
end

Instance Method Details

#data(raw_message) ⇒ Object 



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# File 'lib/sapos/print/printer.rb', line 72

def data(raw_message)
  case @config.interface
  when 'text'
    return raw_message
  when 'escp'
    esc = "\x1B" #ESC byte in hex notation
    newLine = "\x0A" #LF byte in hex notation
    cmds  = esc + "@"
    cmds += esc + "!"+"\00"
    cmds += raw_message
    cmds += newLine + newLine
    cmds += "\x1D\x56\x42\x03" # Cut Paper
    cmds += "\x1B\x70\x00\x19\xFA" # Open drawer
    return cmds
  else
    raise "Unknown interface: #{@config.interface}"
  end
end

#print(args = {}) ⇒ Object 



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# File 'lib/sapos/print/printer.rb', line 16

def print(args = {})
  raw_message = args[:document]

  log_text = "id=#{args[:id]},doc=#{args[:document_number]},control=#{args[:print_control] ? "SI" : "NO"},cache=0\t"
  log_text += "printer=#{args[:printer]}\t" if args[:printer]
  filename = "#{args[:document_number]}.print" if args[:document_number]
  filename = SecureRandom.hex if filename.nil?
  result = false
  raw = raw_message.force_encoding("UTF-8")
  msgid = args[:id]
  if @config.duplicate_control? && @config.cache.include?(msgid)
    log_text += " => DUPLICADO (DC)"
    log_text.gsub!("cache=0", "cache=#{@config.cache.size}")
    puts log_text
    return true
  end
  begin
    if args[:print_control] && args[:document_number]
      print_dir = File.join(Sapos::Print.app_directory, 'print')
      FileUtils.mkdir_p print_dir unless File.exists?(print_dir)
      
      filename = File.join(print_dir, filename)
      if !File.exists?(filename)
        printable = data(raw_message)
        File.open(filename, 'w'){|f| f.write(printable)}
        result  = send_to_printer({file: filename})
        #puts "Result: #{result}"
        log_text += " => OK"
      else
        result = true
        log_text += " => DUPLICADO"
      end
    else
      printable = data(raw_message)
      File.open(filename, 'w'){|f| f.write(printable)}
      result  = send_to_printer({file: filename})
      File.delete(filename) if File.exists?(filename)
      #puts "Result: #{result}"
      log_text += " => OK"
    end
    if @config.duplicate_control?
      @config.cache << msgid
      @config.cache.shift if @config.cache.size > 30
      log_text.gsub!("cache=0", "cache=#{@config.cache.size}")
    end
    puts log_text
  rescue => e
    puts "#{e.message}"
    self.errors = e.message
    result = false
  ensure
    #File.delete(filename) if File.exists?(filename)
    return result
  end
end

#send_to_printer(opts = {}) ⇒ Object 



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# File 'lib/sapos/print/printer.rb', line 91

def send_to_printer(opts = {})
  case @config.adapter
  when 'console'
    puts "=> CONSOLE: file: #{opts[:file]}<=\n\n"
    puts "=> Printer: #{@config.printer}"
    puts File.read(opts[:file])
    puts "\n=> END CONSOLE =<"
    return true
  when 'cups'
    file = opts.delete(:file)
    command_options = []
    command_options << "-d #{@printer_name}"
    command_options << "-o raw" if opts[:raw].present?
    command = "lp #{command_options.join(" ")} #{file}"
    puts "CMD => #{command}" if @config.verbose
    if !system(command)
      puts "Not executed"
      return false
    end
    return true
    
  when 'windows'
    #command = "copy" + ' "' + filename + '" ' + '"\\\\%COMPUTERNAME%\\'+"TM"
    filename = opts[:file].to_s.gsub("/","\\")
    command = "COPY " + '"' + filename + '" ' + '"\\\\%COMPUTERNAME%\\' + @config.printer
    #command = "copy #{opts[:file]} "+'"\\\\%COMPUTERNAME%\\'[email protected]
    if !system(command)
      puts "Not executed"
      return false
    end
    return true
    
  end
end

#to_h ⇒ Object 



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# File 'lib/sapos/print/printer.rb', line 12

def to_h
  {config: config.printer}
end