#!/usr/bin/env python
# -*- coding: utf-8 -*-

from __future__ import print_function
import sys
# Bad namming: change namming
from AdafruitThermal import Adafruit_Thermal as AdafruitThermal
import subprocess, time, Image, socket
import os
import json

#
CODING='cp437'
DEVICE="/dev/ttyUSB0"
SAMPLE_MACHINE = {
  'login': 'cerveaulent',
  'macAddress': '<automatique>',
  'pass': '**********',
}

# Load data
crans_logo = Image.open(os.path.join(os.path.dirname(__file__), 'logo_crans.png'))


printer = AdafruitThermal(DEVICE, 19200, timeout=5)

def print_carac(text, value):
    printer.justify('L')
    pad = 384/12 - len(text) - len(value)
    printer.println(text + ('.'*pad) + value )


def show_machine(machine):
    printer.justify('C')
    printer.underlineOn()
    printer.println(u'Détails machine'.encode(CODING))
    printer.underlineOff()
    printer.justify('L')

    print_carac('Login', machine['login'])
    if machine.has_key('macAddress'):
        print_carac('Mac', machine['macAddress'])
    if machine.has_key('pass'):
        print_carac('Mot de passe', machine['pass'])
    
    printer.feed(1)


# Do print
def print_liste(liste):
    printer.setDefault() # Restore printer to defaults
    printer.printImage(crans_logo, True)
    
    first = True
    
    for m in liste:
        if not first:
            print_carac('','')
        first = False
        show_machine(m)
    
    printer.println(u'Veuillez conserver ces informations en lieu sûr.'.encode(CODING))
    
    printer.feed(2)

if __name__ == '__main__':
    if not sys.argv[1:]:
        liste = [SAMPLE_MACHINE]
    else:
        with open(sys.argv[1], 'r') as f:
            liste = json.load(f)
    print_liste(liste)