Class: Extface::Driver::EltradeTmU220

Inherits:
Extface::Driver show all
Includes:
Extface::Driver::Eltrade::CommandsFp4
Defined in:
app/models/extface/driver/eltrade_tm_u220.rb

Defined Under Namespace

Classes: Frame, PrinterStatus

Constant Summary collapse

NAME = 
'Eltrade TM-U220 (Serial)'.freeze
GROUP = 
Extface::FISCAL_DRIVER
DEVELOPMENT =

driver is not ready for production (not passing all tests or has major bugs)

true
RAW =

Select driver features

true

false
FISCAL =

POS, slip printers

true
REPORT =

cash registers, fiscal printers

false
RESPONSE_TIMEOUT =

only transmit data that must be parsed by handler, CDR, report devices

3
INVALID_FRAME_RETRIES =

seconds

6
BUSY_WAIT_CYCLES =

count

12
FLAG_TRUE =

count

"\xff\xff"
FLAG_FALSE = 
"\x00\x00"

Constants inherited from Extface::Driver

DRIVER_TYPES

Instance Method Summary collapse

Methods inherited from Extface::Driver

#flush, has_serial_config, #notify, #pull, #push, #rpush, #set_job

Instance Method Details

#build_packet(cmd, data = "") ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 179

def build_packet(cmd, data = "")
  "".tap() do |packet|
    packet << STRT.b
    packet << 0x00 #address
    packet << sequence_number
    packet << cmd
    packet << data.length
    packet << data.b
    packet << check_sum(packet[2..-1])
  end
end

#build_sale_data(price, text1 = "", text2 = nil, tax_group = 2, qty = 1, percent = nil, neto = nil, number = nil) ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 100

def build_sale_data(price, text1 = "", text2 = nil, tax_group = 2, qty = 1, percent = nil, neto = nil, number = nil)
  "".b.tap() do |data|
    price_units = (price * 100).to_i # !FIXME
    price_bytes = "".b
    4.times{ |shift| price_bytes.insert 0, ((price_units >> shift*8) & 0xff).chr }
    data << price_bytes
    qty_units = ((qty || 1) * 1000).to_i # !FIXME
    qty_bytes = "".b
    4.times{ |shift| qty_bytes.insert 0, ((qty_units >> shift*8) & 0xff).chr }
    data << qty_bytes
    data << "\x00".b #number len FIXME
    data << "\xAA\xAA\xAA\xAA\xAA\xAA".b #number FIXME
    text = text1.truncate(20)
    data << text.length.chr
    data << text.ljust(20, " ").b
    data << (tax_group || 2).chr
  end
end

#cancel_doc_session ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 151

def cancel_doc_session
  device.session("Doc cancel") do |s|
    s.notify "Doc Cancel Start"
    # cancel old one by open/close new one
    s.open_receipt
    s.close_receipt
    s.notify "Doc Cancel End"
  end
end

#check_ready! ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 161

def check_ready!
  fsend Info::GET_STATUS
  raise errors.full_messages.join(", ") if errors.any?
end

#check_status ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 170

def check_status
  flush
  status = get_printer_status
  #TODO check for:
  #1. sold PLUs dangerously high -> solution PLU Report (0x32)
  #2. open bon and transaction count
  errors.empty?
end

#check_sum(buffer) ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 227

def check_sum(buffer)
  sum = 0
  buffer.each_byte do |byte|
    sum -= byte
  end
  sum & 0xff
end

#close_receipt ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 54

def close_receipt
  fsend Receipt::CLOSE_RECEIPT
  status = get_printer_status
end

#fiscal_test ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 94

def fiscal_test
  sale_and_pay_items_session([
    { price: 0.01, text1: "Extface Test" }
  ])
end

#frecv(timeout) ⇒ Object

return RespFrame or nil



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 218

def frecv(timeout) # return RespFrame or nil
  if frame_bytes = pull(timeout)
    return Frame.new(frame_bytes.b)
  else
    errors.add :base, "No data received from device"
    return nil
  end
end

#fsend(cmd, data = "") ⇒ Object

return data or nil



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 191

def fsend(cmd, data = "") #return data or nil
  packet_data = build_packet(cmd, data)
  result = false
  BUSY_WAIT_CYCLES.times do |retries|
    push build_packet(Info::GET_STATUS)
    if status = frecv(RESPONSE_TIMEOUT)
      break if status.ready?
    end
  end
  INVALID_FRAME_RETRIES.times do |retries|
    errors.clear
    push packet_data
    if resp = frecv(RESPONSE_TIMEOUT)
      if resp.valid?
        result = resp.data
        break
      else
        resp.errors.full_messages.each do |msg|
          errors.add :base, msg
        end
      end
    end
    errors.add :base, "#{INVALID_FRAME_RETRIES} Broken Packets Received. Abort!"
  end
  return result
end

#get_printer_status ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 166

def get_printer_status
  PrinterStatus.new(fsend(Info::GET_PRINTER_STATUS))
end

#handle(buffer) ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 31

def handle(buffer)
  bytes_processed = 0
  if frame_match = buffer.match(/\xAA\x55.{3}(.{1}).*/nm) #m Treat \x0a as a character matched by .
    len = frame_match.captures.first.ord
    skip = frame_match.pre_match.length
    bytes_processed = skip + 7 + len # 6 pre + 1 check sum
    if bytes_processed <= buffer.length #packet in buffer
      rpush buffer[skip..bytes_processed]
    else
      bytes_processed = skip #not whole packet, just remove trail
    end
  end
  return bytes_processed
end

#non_fiscal_test ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 80

def non_fiscal_test
  device.session("Non Fiscal Text") do |s|
    s.notify "Printing Non Fiscal Text"
    s.open_receipt Receipt::Variant::START_COMMENT_RECEIPT
    s.send_comment "********************************"
    s.send_comment "Extface Print Test".center(32)
    s.send_comment "********************************"
    s.send_comment ""
    s.send_comment "Driver: " + "#{self.class::NAME}".truncate(24)
    s.close_receipt
    s.notify "Printing finished"
  end
end

#open_receipt(variant = nil) ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 46

def open_receipt(variant = nil)
  fsend Receipt::OPEN_RECEIPT
  unless variant.blank?
    fsend Receipt::PRINT_RECEIPT, variant
  end
  status = get_printer_status
end

#sale_and_pay_items_session(items = [], operator = "1", password = "1") ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 119

def sale_and_pay_items_session(items = [], operator = "1", password = "1")
  device.session("Fiscal Doc") do |s|
    s.notify "Fiscal Doc Start"
    s.open_receipt
    items.each do |item|
      s.send_plu build_sale_data(item[:price], item[:text1], nil, item[:tax_group], item[:qty], nil, nil, item[:number])
      s.send_comment(item[:text2]) unless item[:text2].blank?
    end
    s.send_payment
    s.close_receipt
    s.notify "Fiscal Doc End"
  end
end

#send_comment(text) ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 59

def send_comment(text)
  fsend Receipt::PRINT_RECEIPT, Receipt::Variant::COMMENT + text
  status = get_printer_status
end

#send_payment(type_num = 0, value = nil) ⇒ Object

0, 1, 2, 3



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 69

def send_payment(type_num = 0, value = nil) # 0, 1, 2, 3
  value_bytes = "\x00\x00\x00\x00" # recalculate
  unless value.nil?
    value_units = (value * 100).to_i # !FIXME
    value_bytes = "".b
    4.times{ |shift| value_bytes.insert 0, ((value_units >> shift*8) & 0xff).chr }
  end
  fsend Receipt::PRINT_RECEIPT, "" << (9 + type_num).chr << value_bytes
  status = get_printer_status
end

#send_plu(plu_data) ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 64

def send_plu(plu_data)
  fsend Receipt::PRINT_RECEIPT, Receipt::Variant::PLU + plu_data
  status = get_printer_status
end

#x_report_session ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 142

def x_report_session
  device.session("Z Report") do |s|
    s.notify "X Report Start"
    s.fsend Reports::DAILY_REPORT, FLAG_FALSE
    status = s.get_printer_status
    s.notify "X Report End"
  end
end

#z_report_session ⇒ Object 



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# File 'app/models/extface/driver/eltrade_tm_u220.rb', line 133

def z_report_session
  device.session("Z Report") do |s|
    s.notify "Z Report Start"
    s.fsend Reports::DAILY_REPORT, FLAG_TRUE
    status = s.get_printer_status
    s.notify "Z Report End"
  end
end