#!/usr/bin/python
# -*- coding: UTF-8 -*-
import os
import robot.utils
from robot.errors import DataError
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
from browsercache import BrowserCache
from keywordgroup import KeywordGroup
from BJRobot.utilities import System


BROWSER_NAMES = {'ff': "_make_ff",
                 'firefox': "_make_ff",
                 'ie': "_make_ie",
                 'internetexplorer': "_make_ie",
                 'googlechrome': "_make_chrome",
                 'gc': "_make_chrome",
                 'chrome': "_make_chrome",
                 'opera': "_make_opera",
                 'phantomjs': "_make_phantomjs",
                 'htmlunit': "_make_htmlunit",
                 'htmlunitwithjs': "_make_htmlunitwithjs",
                 'android': "_make_android",
                 'iphone': "_make_iphone",
                 'safari': "_make_safari",
                 'edge': "_make_edge"
                 }


class BrowserManager(KeywordGroup):
    chrome_driver_version = "2.27"
    edge_driver_version = "14393"
    firefox_driver_version = "0.12"
    ie_driver_version = "2.53"

    def __init__(self):
        self._cache = BrowserCache()
        self._default_script_timeout_in_secs = 10
        self._default_implicit_wait_in_secs = 20

    def open_browser(self, url, browser_name="chrome", proxy=None, alias=None):
        """Open a browser and go to expected url address, set the browser and the proxy, as well as the alias,
        1. The url is mandatory, otherwise the keyword will fail to execute.
        2. Browser name is by default set to chrome, the available browser name are
            ff, firefox
            ie, internetexplorer
            googlechrome, gc, chrome,
            edge
        3. Proxy support manual and direct
            If manual, please give a proxy url, if direct, just leave empty
        4. Set browser alias for further browser switching purpose.
        Example:
        | open browser          | chrome                | http://proxy:8083/    | browserA |
        | open browser          | ie                    |                       | browserB |
        | switch browser        | browserA              |
        | set value by id       | kw                    | test |
        | click element by id   | su                    |
        | open browser | chrome | http://proxy:8083/ | browserA |
        | switch browser        | browserB              |
        | do something...       |                       |
        """
        try:
            driver_instance = self._make_browser(browser_name.strip(), proxy)
            driver_instance.get(url)
        except:
            raise
        self._cache.register(driver_instance, alias)

    def open_new_window(self, url):
        """
        Open a new window in current browser, must in an existing browser
        :param url: the target url to be open and navigate to.
        :return: no return
        Example:
        | open new window | http://www.baidu.com |
        """
        js = "window.open('%s')" % url
        self._current_browser().execute_script(js)

    def close_window(self):
        """
        Close current window
        :return: none
        """
        js = "window.close()"
        self._current_browser().execute_script(js)

    def close_all_browsers(self):
        """Closes the all open browsers in current session.
        Example:
        | close all browsers |
        """
        self._cache.close_all()

    def close_browser(self):
        """Closes the current browser.
        Example:
        | close browser |
        """
        if self._cache.current:
            self._cache.close()

    def switch_window(self, title_or_url):
        """When click on a link opening a new window such as www.baidu.com
        we need to switch to the new window and continue the operation
        Example:
        | switch window         | 百度一下， 你就知道   |
        | set value by id       | kw                    | test |
        | click element by id   | su                    |
        """
        all_windows = self._current_browser().window_handles
        for window in all_windows:
            self._current_browser().switch_to.window(window)
            url = self.get_url()
            title = self.get_title()
            if title.lower() == title_or_url.lower() or url.lower() == title_or_url.lower():
                break

    def switch_window_contains(self, title_or_url):
        """When click on a link opening a new window such as www.baidu.com
        we need to switch to the new window and continue the operation
        Example:
        | switch window contains    | 百度一下， 你就       |
        | set value by id           | kw                    | test |
        | click element by id       | su                    |
        """
        all_windows = self._current_browser().window_handles
        for window in all_windows:
            self._current_browser().switch_to.window(window)
            url = self.get_url()
            title = self.get_title()
            if title_or_url.lower() in url.lower() or title_or_url in title.lower():
                break

    def switch_browser(self, index_or_alias):
        """Switches between active browsers using index or alias.
        Index is returned from `Open Browser` and alias can be given to it.

        Example:
        | Open Browser          | http://google.com | ff       |
        | URL Should Be         | http://google.com |          |
        | Open Browser          | http://yahoo.com  | ie       | 2nd conn |
        | URL Should Be         | http://yahoo.com  |          |
        | Switch Browser        | 1                 | # index  |
        | Switch Browser        | 2nd conn          | # alias  |
        | Close All Browsers    |                   |          |

        Above example expects that there was no other open browsers when
        opening the first one because it used index '1' when switching to it
        later. If you aren't sure about that you can store the index into
        a variable as below.

        | ${id} =            | Open Browser  | http://google.com | *firefox |
        | # Do something ... |
        | Switch Browser     | ${id}         |                   |          |
        """
        try:
            self._cache.switch(index_or_alias)
        except (RuntimeError, DataError):  # RF 2.6 uses RE, earlier DE
            raise RuntimeError("No browser with index or alias '%s' found." % index_or_alias)

    def maximize_browser_window(self):
        """Maximizes current browser window.
        Example:
        | maximize browser window |
        """
        self._current_browser().maximize_window()

    def set_window_size(self, width, height):
        """Sets the `width` and `height` of the current window to the specified values.

                Example:
                | Set Window Size | ${800} | ${600}       |
                | ${width} | ${height}= | Get Window Size |
                | Should Be Equal | ${width}  | ${800}    |
                | Should Be Equal | ${height} | ${600}    |
                """
        return self._current_browser().set_window_size(width, height)

    def get_window_size(self):
        """Returns current window size as `width` then `height`.

        Example:
        | ${width} | ${height}= | Get Window Size |
        """
        size = self._current_browser().get_window_size()
        return size['width'], size['height']

    def get_url(self):
        """Returns the current location.
        Example:
       |${url}=| get url |
        """
        return self._current_browser().current_url

    def url_should_be(self, url):
        """Verifies that current URL is exactly `url`.
        Example:
        | url should be | ${url} |
        """
        actual = self.get_url()
        if actual != url:
            raise AssertionError("URL should have been '%s' but was '%s'"
                                 % (url, actual))

    def url_should_contain(self, expected):
        """Verifies that current URL contains `expected`.
        Example:
        | url should contain | ${expected} |
        """
        actual = self.get_url()
        if expected not in actual:
            raise AssertionError("URL should have contained '%s' "
                                 "but it was '%s'." % (expected, actual))

    def get_title(self):
        """Returns title of current page.
        Example:
        |${title}=| get title |
        """
        return self._current_browser().title

    def title_should_be(self, title):
        """Verifies that current page title equals `title`.
        Example:
        | title should contain | 百度一下， 你就知道 |
        """
        actual = self.get_title().strip()
        if actual != title.strip():
            raise AssertionError("Title should have been '%s' but was '%s'"
                                 % (title, actual))

    def title_should_contain(self, expected):
        """Verifies that current page title equals `title`.
        Example:
        | title should contain | 百度一下 |
        """
        actual = self.get_title()
        if expected not in actual:
            raise AssertionError("Title should have contained '%s' but was '%s'"
                                 % (expected, actual))

    def go_back(self):
        """Simulates the user clicking the "back" button on their browser.
        Example:
        | go back |
        """
        self._current_browser().back()

    def go_to_url(self, url):
        """Navigates the active browser instance to the provided URL.
        | Open Application  | http://localhost:4755/wd/hub | platformName=iOS | platformVersion=7.0 |
        deviceName='iPhone Simulator' | browserName=Safari |
        | Go To URL         | http://m.webapp.com          |
        """
        self._current_browser().get(url)

    def reload_page(self):
        """Simulates user reloading page.
        Example:
        | accept alert |
        """
        self._current_browser().refresh()

    def accept_alert(self):
        """
        Accept the alert available.
        Example:
        | accept alert |
        """
        self._current_browser().switch_to().alert().accept()

    def dismiss_alert(self):
        """
        Dismisses the alert available.
        Example:
        | dismiss alert |
        """
        self._current_browser().switch_to().alert().dismiss()

    def authenticate_alert(self, username, password):
        """
        Send the username / password to an Authenticated dialog (like with Basic HTTP Auth).
        Implicitly 'clicks ok'
        :Args:
        -username: string to be set in the username section of the dialog
        -password: string to be set in the password section of the dialog
        Example:
        | authenticate alert | username | password |
        """
        self._current_browser().switch_to.alert.authenticate(username, password)

    def set_browser_implicit_wait(self, seconds):
        """All the window running selenium will by impacted by this setting.

        Example:
        | Set Browser Implicit Wait | 15 seconds |
        | Open page that loads slowly |
        | Set Browser Implicit Wait | 20s |
        """
        implicit_wait_in_secs = robot.utils.timestr_to_secs(seconds)
        self._current_browser().implicitly_wait(implicit_wait_in_secs)

    def set_global_implicit_wait(self, seconds):
        """This function will set global selenium implicit wait time out,
        it will impact all the running test. So consider your purpose before you use it.
        Example:
        | ${orig timeout} = | Set global Implicit Wait | 10 seconds |
        | Perform AJAX call that is slow |
        | Set Global Implicit Wait | ${orig timeout} |
        """
        old_wait = self._default_implicit_wait_in_secs
        self._default_implicit_wait_in_secs = robot.utils.timestr_to_secs(seconds)
        for driver_instance in self._cache.get_open_browsers():
            driver_instance.implicitly_wait(self._default_implicit_wait_in_secs)
        return old_wait

    def set_browser_script_timeout(self, seconds):
        """All the window running selenium will by impacted by this setting.

        Example:
        | Set Browser Script Timeout | 15 seconds |
        | Open page that loads slowly |
        | Set Browser Script Timeout | 20s |
        """
        _timeout_in_secs = robot.utils.timestr_to_secs(seconds)
        self._current_browser().set_script_timeout(_timeout_in_secs)

    def set_global_script_timeout(self, seconds):
        """This function will set global javascript wait time out,
        it will impact all the running test. So consider your purpose before you use it.
        Example:
        | ${orig timeout} = | Set Global Script Timeout | 15 seconds |
        | Open page that loads slowly |
        | Set Selenium Timeout | ${orig timeout} |
        """
        old_timeout = self._default_script_timeout_in_secs
        self._default_script_timeout_in_secs = robot.utils.timestr_to_secs(seconds)
        for driver_instance in self._cache.get_open_browsers():
            driver_instance.set_script_timeout(self._default_script_timeout_in_secs)
        return old_timeout

    def _current_browser(self):
        if not self._cache.current:
            raise RuntimeError('No browser is open')
        return self._cache.current

    def _get_browser_creation_function(self, browser_name):
        func_name = BROWSER_NAMES.get(browser_name.lower().replace(' ', ''))
        return getattr(self, func_name) if func_name else None

    def _make_browser(self, browser_name, proxy=None):
        creation_func = self._get_browser_creation_function(browser_name)
        if not creation_func:
            raise ValueError(browser_name + " is not a supported browser.")
        driver_instance = creation_func(proxy)

        driver_instance.set_script_timeout(self._default_script_timeout_in_secs)
        driver_instance.implicitly_wait(self._default_implicit_wait_in_secs)
        return driver_instance

    def _make_ff(self, proxy=None):
        cur_path = os.path.dirname(os.path.realpath(__file__))
        cur_path = cur_path + os.sep + ".." + os.sep + 'log' + os.sep + 'geckodriver.log'
        fp = None
        if System.get_os_name().lower() == 'windows':
            target = os.path.expanduser('~') \
                     + os.sep + 'AppData' + os.sep + 'Roaming' + os.sep + 'Mozilla' + os.sep + 'Firefox' \
                     + os.sep + 'Profiles'
            fp = System.search_file_contains(target, '.default')
        firefox_profile = webdriver.FirefoxProfile(fp)
        if proxy is not None:
            host, port = proxy.split(r'//')[1].split(':')[0], proxy.split(r'//')[1].split(':')[1]

            firefox_profile.set_preference("network.proxy.http", host)
            firefox_profile.set_preference("network.proxy.http_port", int(port))
            firefox_profile.set_preference("network.proxy.ssl", host)
            firefox_profile.set_preference("network.proxy.ssl_port", int(port))
            firefox_profile.set_preference("network.proxy.socks", host)
            firefox_profile.set_preference("network.proxy.socks_port", int(port))
            firefox_profile.set_preference("network.proxy.ftp", host)
            firefox_profile.set_preference("network.proxy.ftp_port", int(port))
            firefox_profile.set_preference("network.proxy.no_proxies_on", 'localhost')
            firefox_profile.set_preference("network.proxy.type", 1)
        else:
            firefox_profile.set_preference("network.proxy.type", 0)
        firefox_capabilities = DesiredCapabilities.FIREFOX
        firefox_capabilities['acceptInsecureCerts'] = True
        firefox_capabilities['marionette'] = True

        binary = FirefoxBinary()

        return webdriver.Firefox(executable_path=self.__get_driver_path("firefox"), capabilities=firefox_capabilities,
                                 firefox_binary=binary, firefox_profile=firefox_profile, log_path=cur_path)

    def _make_ie(self, proxy=None):
        cur_path = os.path.dirname(os.path.realpath(__file__))
        cur_path = cur_path + os.sep + ".." + os.sep + 'log' + os.sep + 'ie.log'
        ie_capabilities = DesiredCapabilities.INTERNETEXPLORER
        ie_capabilities['ignoreProtectedModeSettings'] = True
        ie_capabilities['INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS'] = True
        ie_capabilities['requireWindowFocus'] = False
        ie_capabilities['enableElementCacheCleanup'] = True
        ie_capabilities['ie.usePerProcessProxy'] = True
        ie_capabilities['proxy'] = System.set_proxy(proxy)
        return webdriver.Ie(executable_path=self.__get_driver_path("ie"),
                            capabilities=ie_capabilities, log_file=cur_path, log_level='INFO')

    def _make_chrome(self, proxy=None):
        cur_path = os.path.dirname(os.path.realpath(__file__))
        cur_path = cur_path + os.sep + ".." + os.sep + 'log' + os.sep + 'chrome.log'
        chrome_capabilities = webdriver.DesiredCapabilities.CHROME
        chrome_capabilities['chromeOptions'] = {"args": ["--disable-extensions"], "extensions": []}
        chrome_capabilities['proxy'] = System.set_proxy(proxy)
        return webdriver.Chrome(executable_path=self.__get_driver_path("chrome"),
                                desired_capabilities=chrome_capabilities, service_log_path=cur_path)

    def _make_edge(self, proxy=None):
        if hasattr(webdriver, 'Edge'):
            cur_path = os.path.dirname(os.path.realpath(__file__))
            cur_path = cur_path + os.sep + ".." + os.sep + 'log' + os.sep + 'edge.log'
            edge_capabilities = DesiredCapabilities.EDGE
            edge_capabilities['edge.usePerProcessProxy'] = True
            edge_capabilities['proxy'] = System.set_proxy(proxy)
            # edge_options = Options()
            return webdriver.Edge(executable_path=self.__get_driver_path("edge"),
                                  capabilities=edge_capabilities, log_path=cur_path, verbose=True)
        else:
            raise ValueError("Edge is not a supported browser with your version of Selenium python library."
                             " Please, upgrade to minimum required version 2.47.0.")

    def __get_driver_path(self, browser):
        default = os.path.split(os.path.realpath(__file__))[0]
        default = default + os.sep + '..' + os.sep + "resource" + os.sep + "driver"
        _browser = browser.lower()
        if _browser == "chrome":
            default = default + os.sep + _browser + os.sep + self.chrome_driver_version
            if System.get_os_name() == "linux":
                if System.is64bit():
                    default = default + os.sep + "linux64"
                else:
                    default = default + os.sep + "linux32"
                default = default + os.sep + "chromedriver"
            elif System.get_os_name() == "windows":
                default = default + os.sep + "win32" + os.sep + "chromedriver.exe"

        elif _browser == "edge":
            default = default + os.sep + _browser + os.sep + self.edge_driver_version \
                      + os.sep + "MicrosoftWebDriver.exe"

        elif _browser == "firefox":
            default = default + os.sep + _browser + os.sep + self.firefox_driver_version
            if System.get_os_name() == "linux":
                if System.is64bit():
                    default = default + os.sep + "linux64"
                else:
                    default = default + os.sep + "linux32"
                default = default + os.sep + "geckodriver"
            elif System.get_os_name() == "windows":
                if System.is64bit():
                    default = default + os.sep + "win64"
                else:
                    default = default + os.sep + "win32"
                default = default + os.sep + "geckodriver.exe"

        elif _browser == "ie":
            default = default + os.sep + _browser + os.sep + self.ie_driver_version
            # Use win32 for IE driver only because of performance issue.
            # if (self.__is64bit()):
            #     default = default + os.path.sep + "win64"
            # else:
            #     default = default + os.path.sep + "win32"
            # default = default + os.path.sep + "IEDriverServer.exe"
            default = default + os.sep + "win32" + os.sep + "IEDriverServer.exe"
        return default

    def _test(self, by, value):
        driver = webdriver.Chrome()

        try:
            driver.implicitly_wait(1)
            element_list = driver.find_elements(by, value)
            for element in element_list:
                if element.is_displayed():
                    driver.implicitly_wait(self._default_implicit_wait_in_secs)
                    return element
        except:
            raise
