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# -*- coding: utf-8 -*-
from setuphelpers import *

r"""
Usable WAPT package functions: install(), uninstall(), session_setup(), audit(), update_package()

"""
# Declaring global variables - Warnings: 1) WAPT context is only available in package functions; 2) Global variables
# are not persistent between calls
import collections
import os


def count_lines(filename, maxlines=10):
    with open(filename, 'r') as file:
        lines = file.readlines()
    ilines = len(lines)
    if 0 < ilines < maxlines:
        return ilines
    elif ilines > maxlines:
        return maxlines
    else:
        return 0


def read_last_n_lines(filename, n=10):
    with open(filename, 'r') as file:
        lines = collections.deque(file, n)
    return list(lines)


# -------- A modifier --------
Nom_du_programme = 'Proweb'
setup_exe = 'Setup_XXXXX_02.02.00.exe'
version = '02.02.00'
exe_a_tuer = 'XXXXX.exe'
chemin_exe_deinstall = 'C:\\APP\\XXXXX\\unins000.exe'
cle_registre = '{8FB44C2D-8A13-4529-8544-54BFF7D76D9A}_is1'
log_installation = 'C:\\LOG\\WAPT_Install_' + Nom_du_programme + '.log'
log_desinstallation = 'C:\\LOG\\WAPT_Uninstall_' + Nom_du_programme + '.log'
parametres_installation = '/SP- /VERYSILENT /SUPPRESSMSGBOXES /LOG=' + log_installation
parametres_desinstallation = '/VERYSILENT /SUPPRESSMSGBOXES /LOG=' + log_desinstallation
fichier_verification ='C:\\APP\\XXXXX\\XXXXX.exe'

def install():
    # Declaring local variables

    # Proweb est il déjà installé ?
    if os.path.exists(fichier_verification):

        # Installing the software
        print("Installing: " + Nom_du_programme)
        install_exe_if_needed(setup_exe,
                              silentflags=parametres_installation,
                              key=cle_registre,
                              min_version=version,
                              killbefore=[exe_a_tuer]
                              )

        if os.path.exists(log_installation):
            nbLines = count_lines(log_installation)
            if nbLines > 0:
                for line in read_last_n_lines(log_installation, 25):
                    print(line.strip())
        else:
            print('pas de log ici : ' + log_installation)
    else:
        print('logiciel ' + Nom_du_programme + ' non présent pas de mise à jour.')
        exit(1)


def uninstall():
    run(r'"' + chemin_exe_deinstall + '" ' + parametres_desinstallation)

    if os.path.exists(log_desinstallation):
        nbLines = count_lines(log_desinstallation)
        if nbLines > 0:
            for line in read_last_n_lines(log_desinstallation, nbLines):
                print(line.strip())
    else:
        print('pas de log ici : ' + log_desinstallation)