#!python3

# Written by Jordan ERNST Q1 2018.
# Contact : pro.ernst@gmail.com

import configparser
import sys
import os
import re
from datetime import date, timedelta, datetime
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 fitz               # = PyMuPDF : To convert pdf to png
import subprocess
from shutil import copyfile, move
from pyfiglet import Figlet
from colorama import init
from termcolor import colored


version = '3.2'  # dev/devnocam

configdir = os.path.join(os.getenv('PROGRAMDATA'), 'IFPass')
config = os.path.join(configdir, 'IFPass.conf')


def initialisation():
    conf = configparser.ConfigParser()
    conf.optionxform = str                # For case sensitive config file

    if not os.path.exists(config):     # Check if config file exists
        print('Fichier de configuration introuvable.')
        IFPassDBdir = input(r'Quel est le répertoire de la base de données IFPass ? (Ex : \\192.168.1.1\IFPass) : ')
        printername = input("Quel est le nom de l'imprimante à cartes ? : ")
        adobex86 = os.path.join(os.getenv('PROGRAMFILES(x86)'), 'Adobe', "Acrobat Reader DC", "Reader", "AcroRd32.exe")
        adobex64 = os.path.join(os.getenv('PROGRAMFILES'), 'Adobe', "Acrobat Reader DC", "Reader", "AcroRd32.exe")
        if os.path.exists(adobex86):
            AcrobatReader = adobex86
        elif os.path.exists(adobex64):
            AcrobatReader = adobex64
        else:
            acrinstalled = yes_or_no("Acrobat Reader est nécessaire pour imprimer les cartes. Est il installé ?")
            if acrinstalled:
                while "Wrong path":
                    AcrobatReader = input(r"Quel est le chemin vers Acrobat Reader ? ( Ex : C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe) : ")
                    if os.path.exists(AcrobatReader):
                        break
                    else:
                        print(colored('\nChemin invalide !', 'red'))
            else:
                print(colored('\nInstallez Acrobat Reader, puis relancez IFPass.', 'red'))
                os.system("pause")
                sys.exit()
        conf['DEFAULT'] = {'IFPassDBdir': IFPassDBdir, 'printername': printername, 'AcrobatReader': AcrobatReader}
        os.makedirs(configdir, 0o777)
        with open(config, 'w') as configfile:
            conf.write(configfile)
    else:
        conf.read(config)
        IFPassDBdir = conf['DEFAULT']['IFPassDBdir']
        printername = conf['DEFAULT']['printername']
        AcrobatReader = conf['DEFAULT']['AcrobatReader']

    clientsfile = os.path.join(IFPassDBdir, 'Clients_IFPass.csv')
    clientsbkpfile = os.path.join(IFPassDBdir, 'Clients_IFPass_backup.csv')
    imgdir = os.path.join(IFPassDBdir, 'Cartes')
    templatesdir = os.path.join(IFPassDBdir, 'Templates')
    pdftemplate = os.path.join(templatesdir, 'IFPass_PDF_Template.pdf')
    pngtemplate = os.path.join(templatesdir, 'IFPass_PNG_Template.png')
    fonttemplate = os.path.join(templatesdir, 'Roboto-Bold.ttf')

    if not os.path.exists(imgdir):   # Cartes dir creation if it doesn't exist
        os.makedirs(imgdir, 0o777)
    if not os.path.exists(clientsfile):  # Creation Clients_File if it doesn't exist
        with open(clientsfile, 'w', newline='', encoding='utf-8') as csvfile:
            writer = csv.writer(csvfile, delimiter=';')
            writer.writerow(['Titre', 'Prénom', 'Nom', 'Numéro de client', "Date d'inscription", "Date d'expiration"])
    if not os.path.exists(templatesdir):
        move('Templates', IFPassDBdir)

    return IFPassDBdir, printername, AcrobatReader, clientsfile, clientsbkpfile, imgdir, templatesdir, pdftemplate, pngtemplate, fonttemplate


def get_fullname(**kwargs):   # **kwargs => Optionnal arguments
    if 'firstname' in kwargs:
        firstname = kwargs['firstname']
        newfirstname = input("Prénom (" + firstname + "): ").strip()
        if len(newfirstname) != 0:
            firstname = newfirstname
    else:
        while "Empty firstname":
            firstname = input("Prénom : ").strip()
            if len(firstname) == 0:
                os.system('cls')
                print(colored("\nLe Prénom ne peut pas être vide.", 'red'))
            else:
                break
    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

    if 'surname' in kwargs:
        surname = kwargs['surname']
        newsurname = input("Nom (" + surname + "): ").strip()
        if len(newsurname) != 0:
            surname = newsurname
    else:
        while "Empty surname":
            surname = input("Nom : ").strip()
            if len(surname) == 0:
                os.system('cls')
                print(colored("\nLe Nom ne peut pas être vide.", 'red'))
            else:
                break
    surname = surname.upper()
    docteur = yes_or_no('Est-ce un Docteur ?')
    if docteur:
        titre = 'Dr.'
        titrename = titre + ' ' + surname
    else:
        titre = ''
        titrename = surname
    return titre, firstname, surname, titrename


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)

        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(colored('\nLa webcam est débranchée. Branchez-la, puis relancez le programme.', 'red'))
                os.system("pause")
                sys.exit()
            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
                cap.release()
                print(colored('[OK]', 'green'))
                cv2.destroyAllWindows()
                defaultpicture = os.path.join(IFPassDBdir, 'Templates', 'default_avatar.jpg')
                picture = Image.open(defaultpicture)
                return picture
            elif k & 0xFF == ord(' '):  # Space
                cap.release()
                cv2.destroyAllWindows()
                break
            elif k & 0xFF == ord('q'):   # Q or q to quit
                cap.release()
                cv2.destroyAllWindows()
                sys.exit()
        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(titre, firstname, surname, clientID, dateinsc, dateexp, new):
    if new is True:
        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'))
    elif new is False:
        print("Modification de la base de données...        ", end="")
        with open(clientsfile, 'r+', newline='', encoding='utf-8') as csvfile:
            content = csvfile.readlines()
            for index, member in enumerate(content):
                member = member.split(';')
                if member[3] == clientID:
                    tochange = index
                    break
            content.pop(tochange)
            changewith = ";".join([titre, firstname, surname, clientID, dateinsc, dateexp]) + '\n'
            content.insert(tochange, changewith)
            content = "".join(content)
            csvfile.seek(0)
            csvfile.truncate(0)
            csvfile.write(content)

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


def bkpdb():
    copyfile(clientsfile, clientsbkpfile)


def fillcard(clientID, titrename, firstname, dateexp, barcode, picture):
    print("Création du verso de la carte avec les informations...", end='')
    try:
        im = Image.open(pngtemplate)
    except FileNotFoundError:
        os.system('cls')
        print(colored('Vous avez besoin de 2 fichiers dans le dossier Templates pour générer des cartes :', 'red'))
        print(templatesdir + '\\IFPass_PDF_Template.pdf : Modèle de la carte (recto et verso)')
        print(templatesdir + '\\IFPass_PNG_Template.png : La face avant de la carte (celle à remplir)')
        os.system("pause")
        sys.exit()
    draw = ImageDraw.Draw(im)

    # Name embedding :
    font = ImageFont.truetype(fonttemplate, 40)
    draw.text((401, 296), titrename, fill=(0, 0, 0), font=font)
    draw.text((401, 334), firstname, fill=(0, 0, 0), font=font)

    # Date embedding :
    font = ImageFont.truetype(fonttemplate, 30)
    draw.text((401, 400), 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))

    if version != 'devnocam':
        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(clientID):
    print("Fusion du recto et du verso de la carte...", end='')
    cartefilename = os.path.join(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')
    print(colored('[OK]', 'green'))

    return cartefilename


def printcard(cartefilename):
    # Working : subprocess.Popen('"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" /h /n /t ' + cartefilename + ' '+ printername, shell=False)
    subprocess.Popen('"' + AcrobatReader + '"' + ' /h /n /t ' + cartefilename + ' ' + printername, shell=False)


def getdateexp():
    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')
    return dateexp


def newmember():
    while "the informations are incorrect":              # Loop Filling informations
        os.system('cls')
        titre, firstname, surname, titrename = 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:
            dateexp = getdateexp()

        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')
            if version != 'devnocam':
                picture = getpic()
            clientID = getclientID()
            barcode = barcode_gen(clientID)
            fillcard(clientID, titrename, firstname, dateexp, barcode, picture)
            cartefilename = mergepdf(clientID)
            if version not in ('dev', 'devnocam'):
                bkpdb()
                printcard(cartefilename)
            writeindb(titre, firstname, surname, clientID, dateinsc, dateexp, new=True)
            break


def membersearch():
    with open(clientsfile, 'r', newline='', encoding='utf-8') as csvfile:
        reader = csv.reader(csvfile, delimiter=';')
        csvlist = list(map(list, reader))
    del csvlist[0]                    # We dele the first line (Prénom, Nom...)
    research = input('Entrez une partie du nom, prénom, ou numéro de carte (ou flashez) : ').lower()
    os.system('cls')
    results = []

    for member in csvlist:
        resfirstname = member[1].lower()
        ressurname = member[2].lower()
        resnumber = member[3]
        if any(research in data for data in [resfirstname, ressurname, resnumber]):
            results.append(member)

    if results:
        if len(results) == 1:
            member = results[0]
        else:
            print('-' * 56)
            print(f'{"Choix":8} {"Prénom":15} {"Nom":15} {"Numéro de carte":15}')
            print('-' * 56)
            for index, result in enumerate(results, start=1):
                print(f'{index:^8} {result[1]:15} {result[2]:15} {result[3]:^15}')
            del member
            while 'The choice is not valid':
                try:
                    memberchoice = input("De quel membre s'agit il ? (Colonne Choix) : ")
                    member = results[int(memberchoice) - 1]
                    break
                except (IndexError, ValueError):
                    print(colored('Choix invalide ! Veillez bien à sélectionner le numéro de la colonne "Choix"', 'red', attrs=['bold']))
        os.system('cls')

        while 'Choix incorect':
            print("Titre :             ", colored(member[0], 'green'))
            print("Prénom :            ", colored(member[1], 'green'))
            print("Nom :               ", colored(member[2], 'green'))
            print("Numéro de carte :   ", colored(member[3], 'green'))
            print("Date d'inscription :", member[4])
            print("Date d'expiration : ", member[5])
            dateexp = datetime.strptime(member[5], '%d/%m/%Y').date()
            diff = (dateexp - date.today()).days
            if diff > 0:
                print(colored(f"L'abonnement est encore valable {diff} jours.", 'green', attrs=['bold']))
            elif diff < 0:
                print(colored(f"L'abonnement est expiré depuis {abs(diff)} jours.", 'red', attrs=['bold']))  # abs() to remove minus sign
            elif diff == 0:
                print(colored("Il s'agit du dernier jour de l'abonnement, il expirera demain.", 'yellow', attrs=['bold']))

            print('\n1 - Modifier', "2 - Renouveller l'abonnement / Choisir un nouvelle date d'expiration", '3 - Imprimer la carte', '0 - Menu principal', sep='\n')
            choix = input('Choix : ')
            if choix == '0':
                os.system('cls')
                return
            # We update values with new (edited) values :
            newtitre, newfirstname, newsurname, newdateexp = memberdo(choix, member)
            member[0], member[1], member[2], member[5] = newtitre, newfirstname, newsurname, newdateexp

    else:
        print(colored("Aucun membre n'a été trouvé.", 'red', attrs=['bold']))
        os.system("pause")


def memberdo(choix, member):
    titre = member[0]
    firstname = member[1]
    surname = member[2]
    clientID = member[3]
    dateinsc = member[4]
    dateexp = member[5]

    os.system('cls')
    if choix == '1':    # Edit member
        titre, firstname, surname, dateexp = memberedit(titre, firstname, surname, clientID, dateinsc, dateexp)

    elif choix == '2':  # Renew subscription
        changeexp = yes_or_no("Voulez-vous choisir la date d'expiration ?")
        if changeexp:
            dateexp = getdateexp()
        else:
            dateexp = datetime.strptime(dateexp, '%d/%m/%Y').date()
            diff = (dateexp - date.today()).days
            if diff >= 0:
                dateexp = dateexp + timedelta(days=365)
            elif diff < 0:
                dateexp = date.today() + timedelta(days=365)
            dateexp = dateexp.strftime('%d/%m/%Y')

        if titre == 'Dr.':
            titrename = titre + ' ' + surname
        else:
            titrename = surname

        wantnewpic = yes_or_no("Voulez-vous prendre une nouvelle photo ?")
        os.system('cls')
        if wantnewpic:
            os.system('cls')
            if version != 'devnocam':
                picture = getpic()
        else:
            # We crop pic from the previous card
            cartefilename = os.path.join(imgdir, clientID + '.pdf')
            pdf = fitz.open(cartefilename)
            page = pdf.loadPage(0)
            mat = fitz.Matrix(4.165, 4.165)     # To obtain good resolution
            pix = page.getPixmap(matrix=mat)
            pageimg = Image.frombytes("RGBA", [pix.width, pix.height], pix.samples)
            picture = pageimg.crop((47, 49, 343, 378))

        barcode = barcode_gen(clientID)
        fillcard(clientID, titrename, firstname, dateexp, barcode, picture)
        cartefilename = mergepdf(clientID)

        if version not in ('dev', 'devnocam'):
            bkpdb()
            printcard(cartefilename)
        writeindb(titre, firstname, surname, clientID, dateinsc, dateexp, new=False)
        os.system('cls')
        print(colored("La date d'expiration a bien été mise à jour !\n", 'blue', attrs=['bold']))

    elif choix == '3':  # Print card
        cartefilename = os.path.join(imgdir, clientID + '.pdf')
        printcard(cartefilename)
    else:
        print(colored('Choix incorrect !\n', 'red', attrs=['bold']))
    return titre, firstname, surname, dateexp


def memberedit(titre, firstname, surname, clientID, dateinsc, dateexp):
    while "the informations are incorrect":              # Loop Filling informations
        titre, firstname, surname, titrename = get_fullname(titre=titre, firstname=firstname, surname=surname)

        print("Titre :             ", colored(titre, 'green'))
        print("Prénom :            ", colored(firstname, 'green'))
        print("Nom :               ", colored(surname, 'green'))

        correct = yes_or_no("Ces informations sont elles correctes ?")
        os.system('cls')

        if correct:
            wantnewpic = yes_or_no("Voulez-vous prendre une nouvelle photo ?")
            os.system('cls')
            if wantnewpic:
                os.system('cls')
                if version != 'devnocam':
                    picture = getpic()
            else:
                # We crop pic from the previous card
                cartefilename = os.path.join(imgdir, clientID + '.pdf')
                pdf = fitz.open(cartefilename)
                page = pdf.loadPage(0)
                mat = fitz.Matrix(4.165, 4.165)     # To obtain good resolution
                pix = page.getPixmap(matrix=mat)

                pageimg = Image.frombytes("RGBA", [pix.width, pix.height], pix.samples)
                picture = pageimg.crop((47, 49, 343, 378))

            barcode = barcode_gen(clientID)
            fillcard(clientID, titrename, firstname, dateexp, barcode, picture)
            cartefilename = mergepdf(clientID)
            if version not in ('dev', 'devnocam'):
                bkpdb()
                printcard(cartefilename)
            writeindb(titre, firstname, surname, clientID, dateinsc, dateexp, new=False)
            os.system('cls')
            break
    return titre, firstname, surname, dateexp


def main():
    global IFPassDBdir, clientsfile, imgdir, clientsbkpfile, templatesdir, pngtemplate, fonttemplate, pdftemplate, printername, AcrobatReader
    while "The program is running":
        init()                      # Initialisation of colorama
        IFPassDBdir, printername, AcrobatReader, clientsfile, clientsbkpfile, imgdir, templatesdir, pdftemplate, pngtemplate, fonttemplate = initialisation()

        os.system('cls')
        f = Figlet(font='big')
        print(colored(f.renderText('IFPass'), 'cyan', attrs=['bold']))
        print('Version : ', version)
        if version in ('dev', 'devnocam'):
            print(colored("\nATTENTION : Il s'agit d'une version en cours de développement, potentiellement instable !", 'red'))
        print("\nCe programme est developpé par par Jordan ERNST pour l'Institut Français en Hongrie.")
        print("Il est disponible sou licence MIT à cette addresse : https://framagit.org/SecT0uch/IFPass\n")
        print('Pour toute question, problème ou requête contactez-moi à pro.ernst@gmail.com.\n')
        print('1 - Nouveau membre', '2 - Rechercher un membre', '0 - Quitter', sep='\n')
        choix = input('Choix : ')
        if choix == '1':
            newmember()

        elif choix == '2':
            os.system('cls')
            membersearch()

        elif choix == '0':
            sys.exit()

        else:
            os.system('cls')
            print(colored('Choix incorrect !', 'red', attrs=['bold']))