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

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
bin_contain = "adwcleaner_%s.exe"
app_name = "AdwCleaner"
app_dir = makepath(programfiles32, app_name)


def install():
    # Declaring local variables
    package_version = control.get_software_version()
    bin_name = bin_contain % package_version
    app_path = makepath(app_dir, bin_name)
    # Getting installed software version
    if isfile(app_path):
        installed_version = get_version_from_binary(app_path, property_name="FileVersion")
    else:
        installed_version = None

    # Installing software
    print("Installing: %s" % app_name)
    if installed_version is None or installed_version < package_version or force:
        killalltasks(control.get_impacted_process_list())
        mkdirs(app_dir)
        if isfile(app_path):
            remove_file(app_path)
        print("Copying: %s to: %s" % (bin_name, app_dir))
        filecopyto(bin_name, app_dir)

        # Creating shortcuts
        create_desktop_shortcut(app_name, app_path)
        create_programs_menu_shortcut(app_name, app_path)

        # Adding software to "list-registry"
        print("Registering %s to Windows Registry" % app_name)
        register_windows_uninstall(control, win64app=False)
        register_uninstall(app_name, icon=app_path)
    else:
        print("%s already installed. Skipping" % app_name)


def uninstall():
    # Uninstalling software
    killalltasks(control.get_impacted_process_list())
    if isdir(app_dir):
        remove_tree(app_dir)
    unregister_uninstall(app_name)

    # Removing shortcuts
    remove_desktop_shortcut(app_name)
    remove_programs_menu_shortcut(app_name)


def audit():
    # Declaring local variables
    package_version = control.get_software_version()
    bin_name = bin_contain % package_version
    app_path = makepath(app_dir, bin_name)
    # Getting installed software version
    if isfile(app_path):
        installed_version = get_version_from_binary(app_path, property_name="FileVersion")
    else:
        installed_version = None

    # Auditing software
    print("Auditing: %s" % control.package)
    if installed_version is None or installed_version < package_version:
        print("%s version is incorrect (%s)" % (app_name, installed_version))
        return "ERROR"
    else:
        print("%s is installed in correct version (%s)" % (app_name, installed_version))
        return "OK"


def update_package():
    # Declaring local variables
    result = False
    proxies = get_proxies()
    if not proxies:
        proxies = get_proxies_from_wapt_console()
    download_url = "https://downloads.malwarebytes.com/file/adwcleaner"

    # Getting latest version information from download url
    last_version = requests.head(download_url, allow_redirects=True).headers["Content-Disposition"]
    version = last_version.split("_")[-1].split(".exe")[0]

    bin_name = bin_contain % version

    print("Latest %s version is: %s" % (app_name, version))
    print("Download url is: %s" % download_url)

    # Downloading latest binaries
    if not isfile(bin_name):
        print("Downloading: %s" % bin_name)
        wget(download_url, bin_name, proxies=proxies)

        # Checking version from file
        version_from_file = get_version_from_binary(bin_name, property_name="FileVersion")
        if not version_from_file.startswith(version) and version_from_file != "":
            print("Changing version to the version number of the binary")
            version = version_from_file
        else:
            print("Binary file version corresponds to online version")

    # Changing version of the package
    if Version(version) > Version(control.get_software_version()):
        print("Software version updated (from: %s to: %s)" % (control.get_software_version(), Version(version)))
        result = True
    else:
        print("Software version up-to-date (%s)" % Version(version))
    control.version = "%s-%s" % (Version(version), control.version.split("-", 1)[-1])
    control.save_control_to_wapt()

    # Validating update-package-sources
    return result


def get_proxies():
    r"""Return system proxy with the urllib python library

    >>> get_proxies()
    {'http': 'http://srvproxy.ad.domain.lan:8080',
    'https': 'http://srvproxy.ad.domain.lan:8080'}

    """
    if platform.python_version_tuple()[0] == "3":
        from urllib.request import getproxies
    else:
        from urllib import getproxies
    return getproxies()


def get_proxies_from_wapt_console():
    r"""Return proxy information from the current user WAPT console

    >>> get_proxies_from_wapt_console()
    {'http': 'http://srvproxy.ad.domain.lan:8080',
    'https': 'http://srvproxy.ad.domain.lan:8080'}

    """
    proxies = {}
    if platform.system() == "Windows":
        waptconsole_ini_path = makepath(user_local_appdata(), "waptconsole", "waptconsole.ini")
    else:
        waptconsole_ini_path = makepath(user_home_directory(), ".config", "waptconsole", "waptconsole.ini")
    if isfile(waptconsole_ini_path):
        proxy_wapt = inifile_readstring(waptconsole_ini_path, "global", "http_proxy")
        if proxy_wapt:
            proxies = {"http": proxy_wapt, "https": proxy_wapt}
    return proxies


def get_version_from_binary(filename, property_name="ProductVersion"):
    r"""Get installer version from file informations, for now, only exe and msi files are compatibles

    Args:
        filename (str): path to the file
        property_name (str): selected property

    Returns:
        str: version number

    """
    if filename.endswith(".msi"):
        return get_msi_properties(filename)[property_name]
    else:
        return get_file_properties(filename)[property_name]


def remove_outdated_binaries(version, filename_contains=None, list_extensions=["exe", "msi", "deb", "rpm", "dmg", "pkg"]):
    r"""Remove files based on the version contained in his filename

    Args:
        version (str): version number of keeped files
        filename_contains (str or list of str): Part of the filename that must be contained (useful for distinguishing architecture and os)
        list_extensions (str or list of str): file extensions of verified files

    Returns:
        None

    .. versionadded:: 2.0

    """
    if type(list_extensions) != list:
        list_extensions = [list_extensions]
    if filename_contains:
        if type(filename_contains) != list:
            filename_contains = [filename_contains]
    list_extensions = ["." + ext for ext in list_extensions if ext[0] != "."]
    for file_ext in list_extensions:
        for bin_in_dir in glob.glob("*%s" % file_ext):
            if not version in bin_in_dir:
                remove_file(bin_in_dir)
            if filename_contains:
                for filename_contain in filename_contains:
                    if not filename_contain in bin_in_dir:
                        remove_file(bin_in_dir)