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

# 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_contains = 'TeamViewer_Setup'
silent_args = '/S'
app_uninstallkey = 'TeamViewer'


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

    # Uninstalling incorrect architecture versions
    if iswin64():
        for uninstall in installed_softwares(uninstallkey=app_uninstallkey):
            if uninstall['install_location'].startswith(makepath(programfiles32)):
                print("Removing: %s (%s)" % (uninstall['name'], uninstall['version']))
                run(uninstall_cmd(uninstall['key']))
                time.sleep(30) # Required for TeamViewer
                break
        old_app_dir = makepath(programfiles32, 'TeamViewer')
        old_app_uninstaller = makepath(old_app_dir, 'uninstall.exe')
        if isfile(old_app_uninstaller):
            print("Removing: %s (%s)" % (control.name, get_version_from_binary(old_app_uninstaller)))
            run('"%s" %s' % (old_app_uninstaller, silent_args))
            time.sleep(30) # Required for TeamViewer
        try:
            if isdir(old_app_dir):
                remove_tree(old_app_dir)
        except:
            print("Unable to remove: %s" % old_app_dir)

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

    # Changing default service start mode of the application
    if get_service_start_mode(service_name) != 'Manual':
        try:
            set_service_start_mode(service_name, 'Manual')
            try:
                service_stop(service_name)
            except:
                print("Unable to stop the service: %s" % service_name)
        except:
            print("Unable to set start mode of the service: %s" % service_name)


def update_package():
    # Declaring local variables
    result = False
    proxies = get_proxies()
    if not proxies:
        proxies = get_proxies_from_wapt_console()
    app_name = control.name
    url = 'https://www.teamviewer.com/en/download/windows/'
    if control.architecture == 'x64':
        download_url = 'https://download.teamviewer.com/download/TeamViewer_Setup_x64.exe'
    else:
        download_url = 'https://download.teamviewer.com/download/TeamViewer_Setup.exe'
    latest_bin = download_url.split('/')[-1]

   # Getting latest version from official website
    print("URL used is: %s" % url)
    for elem in bs_find_all('https://www.teamviewer.com/en-us/download/windows/','div','class','wpb_wrapper', proxies=proxies):
        if 'Current version' in elem.text:
            version = elem.text.split(': ')[1].split('\n')[0]
            break

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

    # Deleting outdated binaries
    remove_outdated_binaries(version)

    # 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).split('.')[:3])
        if Version(version) != Version(version_from_file) and version_from_file != '':
            print("Changing version to the version number of the binary (from: %s to: %s)" % (version, version_from_file))
            version = version_from_file
        else:
            print("Binary file version correspond 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
    control.version = '%s-%s' % (Version(version), control.version.split('-', 1)[-1])
    #control.set_software_version(version)
    control.save_control_to_wapt()

    # Validating or not 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 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)