# -*- coding: utf-8 -*-
from setuphelpers import *
import platform
import bs4 as BeautifulSoup
import wmi
import time

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

Installation procedures: 
https://support.anydesk.com/knowledge/use-cases-for-the-command-line-interface
https://support.anydesk.com/knowledge/command-line-interface-for-windows

"""
# Declaring global variables - Warnings: 1) WAPT context is only available in package functions; 2) Global variables are not persistent between calls
bin_contains = "AnyDesk-"
app_name = "AnyDesk"
app_dir = makepath(programfiles32, app_name)
silent_args = '--install "%s" --silent --remove-first --update-disabled --create-shortcuts' % app_dir
app_uninstallkey = "AnyDesk"

def get_version(key):
    return key['version'].split(' ')[-1]

def install():
    # Declaring local variables
    package_version = control.get_software_version()
    bin_name = glob.glob("*%s*.exe" % bin_contains)[0]

    # Installing the software
    print("Installing: %s" % bin_name)
    install_exe_if_needed(
        bin_name,
        silentflags=silent_args,
        key=app_uninstallkey,
        min_version=package_version,
        get_version=get_version
    )

    # Avoiding the usage by WAPT of the app built-in Uninstallstring
    uninstallkey.remove(app_uninstallkey)
    # register_uninstall(app_uninstallkey, quiet_uninstall_string='"%s" --remove' % app_dir)

    # Changing default start mode of the application services
    set_service_start_mode("AnyDesk", "Manual")


def uninstall():
    # Uninstalling the package
    for uninstall in installed_softwares(app_uninstallkey):
        print("Removing: %s (%s)" % (uninstall["name"], uninstall["version"]))
        killalltasks(control.impacted_process.split(","))
        app_uninstall_cmd = uninstall["uninstall_string"].replace("--uninstall", "--silent --remove")
        run(app_uninstall_cmd)
        wait_uninstallkey_absent(uninstall["key"])

    # Remove remaining files
    if isdir(app_dir):
        if not installed_softwares(app_uninstallkey):
            remove_tree(app_dir)


def update_package():
    # Initializing variables
    result = False
    proxies = get_proxies()
    if not proxies:
        proxies = get_proxies_from_wapt_console()
    app_name = control.name
    url = "https://anydesk.com/downloads"
    download_url = "https://download.anydesk.com/AnyDesk.exe"
    sub_bin_name = bin_contains + "%s" + ".exe"

    # Getting latest version from official sources
    print("URL used is: %s" % url)
    for bs_search in bs_find_all(url, "div", "class", "d-block", proxies=proxies):
        if bs_search.text.split("v")[1].split("(")[0]:
            version = bs_search.text.split("v")[1].split(" (")[0]
            latest_bin = sub_bin_name % version
            break

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

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

        # Checking version from file
        version_from_file = ".".join(get_version_from_binary(latest_bin, "FileVersion").split(".")[:3])
        # if not version_from_file.startswith(version) and version_from_file != '':
        if Version(version_from_file) != Version(version) and version_from_file != "":
            print("Changing version to the version number of the binary (from: %s to: %s)" % (version, version_from_file))
            os.rename(latest_bin, sub_bin_name % version_from_file)
            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.set_software_version(version)
    control.save_control_to_wapt()

    # Deleting outdated binaries
    remove_outdated_binaries(version)

    # Validating or not update-package-sources
    return result


def wait_uninstallkey_absent(key=None, max_loop=120, keywords=None, name=None, raise_on_timeout=False):

    if len([f for f in [key, keywords, name] if f]) > 1:
        error("Arguments conflict key: %s keywords: %s name: %s" % (key, keywords, name))

    if key:
        searchparam = "key: %s" % str(key)
    elif name:
        searchparam = "name: %s" % str(name)
    else:
        searchparam = "keywords: %s" % str(keywords)
    print("Waiting for the removal of %s from Windows registry" % searchparam)
    loop = 0
    while uninstall_key_exists(key, keywords=keywords, name=name):
        loop += 1
        if loop > max_loop:
            if raise_on_timeout:
                error("timeout after %s seconds" % max_loop)
            else:
                return "timeout after %s seconds" % max_loop
        time.sleep(1)


def set_service_start_mode(service_name, start_mode, change_state=True):
    r"""Changing start mode of a service and changing his running status accordingly
    Usable values: 'Auto', 'Manual', 'Disabled'
    Informations: https://msdn.microsoft.com/en-us/library/aa384896(v=vs.85).aspx

    .. versionchanged:: 2.2
        Now interact on the running state

    """
    if not service_installed(service_name):
        return print("WARNING: %s service do not exist, skipped")
    to_start = False
    to_stop = False
    if start_mode == "Auto":
        start_mode = "Automatic"
        to_start = True
    elif start_mode == "Disabled" or start_mode == "Manual":
        to_stop = True
    elif start_mode == "Boot" or start_mode == "System":
        # Handle driver services but it do not seems to work
        pass
    else:
        raise Exception("Start mode value specified is incorrect")

    c = wmi.WMI()
    for svc in c.Win32_Service(Name=service_name):
        if svc.StartMode != start_mode:
            svc.ChangeStartMode(StartMode=start_mode)
            if to_start and change_state:
                if not service_is_running(service_name):
                    try:
                        service_start(service_name)
                    except:
                        print("Unable to start the service: %s" % service_name)
            elif to_stop and change_state:
                if service_is_running(service_name):
                    try:
                        service_stop(service_name)
                    except:
                        print("Unable to stop the service: %s" % service_name)


def get_service_start_mode(service_name):
    r"""Getting actual start mode of a service
    Returned values: 'Auto', 'Manual', 'Disabled'

    """
    c = wmi.WMI()
    for svc in c.Win32_Service(Name=service_name):
        return svc.StartMode


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 bs_find(url, element, attribute=None, value=None, user_agent=None, proxies=None, features="html.parser", **kwargs):
    r""" "Parse html web page with BeautifulSoup and get the first result

    Args:
        url (str): url of the web page to parse
        element (str): searched element
        attribute (str): selected attribute of the element
        value (str): value of the selected attribute
        user_agent (str): specify a user-agent if needed
        proxies (dict): specify your proxy if needed
        **kwargs (str): joker for requests parameters
        features (str): bs feature to use


    >>> bs_find('https://www.w3.org/', 'a', 'title', 'Open Web Platform testing')['href']
    'https://web-platform-tests.org/'

    >>> bs_find('https://www.w3.org/', 'span', 'class', 'alt-logo').string
    'W3C'

    .. versionadded:: 2.0

    """
    import requests

    if user_agent:
        page = requests.get(url, proxies=proxies, headers={"User-Agent": "%s" % user_agent}, **kwargs).text
    else:
        page = requests.get(url, proxies=proxies, **kwargs).text
    soup = BeautifulSoup.BeautifulSoup(page, features=features)
    if value:
        return soup.find(element, {attribute: value})
    else:
        return soup.find(element)


def bs_find_all(url, element, attribute=None, value=None, user_agent=None, proxies=None, features="html.parser", **kwargs):
    r""" "Parse html web page with BeautifulSoup and get a list of the result

    Args:
        url (str): url of the web page to parse
        element (str): searched element
        attribute (str): selected attribute of the element
        value (str): value of the selected attribute
        user_agent (str): specify a user-agent if needed
        proxies (dict): specify your proxy if needed
        **kwargs (str): joker for requests parameters
        features (str): bs feature to use


    >>> bs_find_all('https://www.w3.org/', 'a', 'title', 'Open Web Platform testing')[0]['href']
    'https://web-platform-tests.org/'

    >>> bs_find_all('https://www.w3.org/', 'span', 'class', 'alt-logo')[0].string
    'W3C'

    .. versionadded:: 2.0

    """
    import requests

    if user_agent:
        page = requests.get(url, proxies=proxies, headers={"User-Agent": "%s" % user_agent}, **kwargs).text
    else:
        page = requests.get(url, proxies=proxies, **kwargs).text
    soup = BeautifulSoup.BeautifulSoup(page, features=features)
    if value:
        return soup.find_all(element, {attribute: value})
    else:
        return soup.find_all(element)


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)