#!/usr/bin/python3

# Written by Jordan ERNST Q1 2018.
# Contact : pro.ernst@gmail.com
# v1.0 : 23/03/2018

# https://www.pyimagesearch.com/2015/12/21/increasing-webcam-fps-with-python-and-opencv/

import sys
import os
import re
from contextlib import contextmanager    # To hide output
from datetime import date, timedelta
import csv
import code128
import cv2
from pywinauto.findwindows import find_window
from pywinauto.win32functions import SetForegroundWindow
from PIL import Image, ImageDraw, ImageFont
from PyPDF2 import PdfFileReader, PdfFileWriter
import subprocess
from shutil import copyfile
from pyfiglet import Figlet
from colorama import init
from termcolor import colored


version = '1.0'

computer = ''      # 'test', 'mediatheque' or 'accueil'

if computer == 'test':
    IFPassdir = '\\\\192.168.1.1\SSIC\\04-Projets\IFPass\\'
elif computer == 'mediatheque':
    IFPassdir = '\\\\192.168.1.1\IFPass\\'
    printername = ' XPS Pink Card Printer'
elif computer == 'accueil':
    IFPassdir = '\\\\192.168.1.1\IFPass\\'
    printername = ' XPS Blue Card Printer'
else:
    print('La variable "computer" est mal définie.')
    sys.exit()

clientsfile = IFPassdir + 'Clients_IFPass.csv'
clientsbkpfile = IFPassdir + 'Clients_IFPass_bakup.csv'
imgdir = IFPassdir + 'Cartes\\'
pdftemplate = IFPassdir + 'Templates\IFPass_PDF_Template.pdf'
pngtemplate = IFPassdir + 'Templates\IFPass_PNG_Template.png'
fonttemplate = IFPassdir + 'Templates\Roboto-Bold.ttf'


@contextmanager
def HideOutput(to=os.devnull):
    fd = sys.stdout.fileno()

    def _redirect_stdout(to):
        sys.stdout.close()  # + implicit flush()
        os.dup2(to.fileno(), fd)  # fd writes to 'to' file
        sys.stdout = os.fdopen(fd, 'w')   # Python writes to fd

    with os.fdopen(os.dup(fd), 'w') as old_stdout:
        with open(to, 'w') as file:
            _redirect_stdout(to=file)
        try:
            yield  # allow code to be run with the redirected stdout
        finally:
            _redirect_stdout(to=old_stdout)  # restore stdout.  # cv2.selectROI


def get_fullname():
    firstname = input("Prénom : ").strip()
    firstname = firstname[0].upper() + firstname[1:].lower()
    if '-' in firstname:
        pos = firstname.find("-")
        firstname = firstname[:pos + 1] + firstname[pos + 1].upper() + \
            firstname[pos + 2:]             # Check if compound name
    if ' ' in firstname:
        pos = firstname.find(" ")
        firstname = firstname[:pos + 1] + firstname[pos + 1].upper() + \
            firstname[pos + 2:]             # Check if compound name
    surname = input("Nom : ").upper().strip()
    docteur = yes_or_no('Est-ce un Docteur ?')
    if docteur:
        titre = 'Dr.'
        fullname = titre + ' ' + surname + ' ' + firstname
    else:
        titre = ''
        fullname = surname + ' ' + firstname
    return titre, firstname, surname, fullname


def yes_or_no(question):
    while "the answer is invalid":
        reply = input(question + " O/N : ").lower().strip()
        if reply[:1] in ['oui', 'ou', 'o']:
            return True
        if reply[:1] in ['non', 'no', 'n']:
            return False


def getclientID():
    with open(clientsfile, 'r', newline='', encoding='utf-8') as csvfile:
        lastline = csvfile.readlines()[-1]
        lastID = lastline.split(';')[3]
        if lastID == "Numéro de client":
            clientID = "0000000001"
        else:
            clientID = str(int(lastID) + 1).zfill(10)

        writeindb(clientID)
        return clientID


def barcode_gen(clientID):
    print("Génération du code barre...                  ", end='')
    barcode = code128.image(clientID, thickness=4)    #  .save(imgdir + clientID + '.png')
    print(colored('[OK]', 'green'))
    return barcode


def getpic():
    while True:
        print("Prendre la photo...                          ", end='')
        sys.stdout.flush()
        cap = cv2.VideoCapture(0)
        while True:                                 # Loop stream webcam
            try:
                ret, frame = cap.read()
                cv2.rectangle(frame, (170, 73), (470, 407), (0, 255, 0), 2)
                cv2.imshow('IFCamera - Touche Espace pour prendre la photo, Echap pour une carte sans photo, Q pour quitter.',
                       frame)
            except cv2.error:
                print('\nLa webcam est débranchée. Branchez-la, puis relancez le programme.')
                os.system("pause")
                sys.exit(0)
            SetForegroundWindow(find_window(title='IFCamera - Touche Espace '
                                            'pour prendre la photo, Echap pour une carte sans photo, Q pour quitter.'))
            k = cv2.waitKey(1)
            if k == 27:                              # Echap
                print(colored('[OK]', 'green'))
                cv2.destroyAllWindows()
                defaultpicture = IFPassdir + 'Templates\default_avatar.jpg'
                picture = Image.open(defaultpicture)
                return picture
            elif k & 0xFF == ord(' '):  # Space
                break
            elif k & 0xFF == ord('q'):   # Q or q to quit
                cap.release()
                cv2.destroyAllWindows()
                sys.exit()
        cap.release()
        cv2.destroyAllWindows()
        cropped = frame[75:405, 172:468]
        cv2.imshow('IFCamera - Espace pour valider, Echap pour modifier, Q pour quitter', cropped)
        while True:
            k = cv2.waitKey(1)
            if k == 27:                        # Echap
                print(colored('[KO]', 'red'))
                cv2.destroyAllWindows()
                break

            elif k & 0xFF == ord(' '):         # Space
                print(colored('[OK]', 'green'))
                cv2.destroyAllWindows()
                # Color conversion and cv2 img to Pillow img
                cropped = cv2.cvtColor(cropped, cv2.COLOR_BGR2RGB)
                picture = Image.fromarray(cropped)
                return picture


            elif k & 0xFF == ord('q'):   # Q or q to quit
                cv2.destroyAllWindows()
                sys.exit()


def writeindb(clientID):
    print("Ajout dans la base de données...             ", end="")
    with open(clientsfile, 'a', newline='', encoding='utf-8') as csvfile:
        writer = csv.writer(csvfile, delimiter=';')
        writer.writerow([titre, firstname, surname, clientID, dateinsc, dateexp])
    print(colored('[OK]', 'green'))


def bkpdb():
    copyfile(clientsfile, clientsbkpfile)


def fillcard(barcode):
    print("Création de la carte avec les informations...", end='')
    im = Image.open(pngtemplate)
    draw = ImageDraw.Draw(im)

    # Name embedding :
    font = ImageFont.truetype(fonttemplate, 45)
    draw.text((401, 310), fullname, fill=(0,0,0), font=font)

    # Date embedding :
    font = ImageFont.truetype(fonttemplate, 30)
    draw.text((401, 390), dateexp, fill=(0,0,0), font=font)

    # ID embedding :
    font = ImageFont.truetype('arial.ttf', 30)
    draw.text((693, 560), clientID, fill=(0,0,0), font=font)

    # Barcode + picture embedding :
    im.paste(barcode,(556, 460))
    im.paste(picture,(47, 49))

    # Create PDF :
    im = im.convert("RGB")
    im.save(imgdir + clientID + '_Front.pdf', 'PDF', resolution=299.0, quality=98)

    print(colored('[OK]', 'green'))


def mergepdf():
    cartefilename = imgdir + clientID + '.pdf'
    output = PdfFileWriter()

    pdf1 = PdfFileReader(imgdir + clientID + '_Front.pdf', 'rb')
    recto = pdf1.getPage(0)
    output.addPage(recto)

    pdf2 = PdfFileReader(pdftemplate, 'rb')
    verso = pdf2.getPage(1)
    output.addPage(verso)

    with open(cartefilename, 'wb') as f:
        output.write(f)

    os.remove(imgdir + clientID + '_Front.pdf')

    return cartefilename


def printcard(cartefilename):
    # CMD : "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" /h /n /t Carte.pdf "XPS Pink Card Printer"
    subprocess.Popen('"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" /h /n /t ' + cartefilename + printername, shell=False)
    print('test')


while "the informations are incorrect":              # Loop Filling informations
    os.system('cls')
    init()
    f = Figlet(font='big')
    print(colored(f.renderText('IFPass'), 'cyan', attrs=['bold']))
    print('Version :', version)
    print('\nLe programme IFPass à été écrit par Jordan ERNST Q1 2018.')
    print('Pour toute question ou problème contactez-moi à pro.ernst@gmail.com.\n')
    titre, firstname, surname, fullname = get_fullname()
    dateinsc = date.today()
    dateexp = dateinsc + timedelta(days=365)

    dateinsc = dateinsc.strftime('%d/%m/%Y')
    dateexp = dateexp.strftime('%d/%m/%Y')
    changeexp = yes_or_no('Voulez-vous choisir la date d\'expiration ?')
    if changeexp:
        while True:
            dateexp = input('Quelle date d\'expiration voulez-vous mettre (Format : JJ/MM/AAAA)? : ')
            match = re.fullmatch(r'^(0[1-9]|1[0-9]|2[0-9]|3[0-1])/(0[1-9]|1[0-2])/([0-9]){4}$', dateexp)
            if match:
                break
            else:
                print('Mauvais format ! JJ/MM/AAAA, exemple : 01/08/2042')

    os.system('cls')
    print("Titre :             ", colored(titre, 'green'))
    print("Prénom :            ", colored(firstname, 'green'))
    print("Nom :               ", colored(surname, 'green'))
    print("Date d'inscription :", colored(dateinsc, 'green'))
    print("Date d'expiration : ", colored(dateexp, 'green'))
    correct = yes_or_no("Ces informations sont elles correctes ?")

    if correct:
        os.system('cls')
        picture = getpic()
        clientID = getclientID()
        barcode = barcode_gen(clientID)
        fillcard(barcode)
        cartefilename = mergepdf()
        bkpdb()
        if computer == 'mediatheque' or computer == 'accueil':
            printcard(cartefilename)