import asyncio
import base64
import logging
import re
import subprocess
import sys
from abc import ABCMeta, abstractmethod
from http.client import RemoteDisconnected
from os import environ
from re import findall

import pytest
import requests
from appium import webdriver
from appium.webdriver.common.mobileby import MobileBy
from sauceclient import SauceException
from selenium.common.exceptions import NoSuchElementException
from selenium.common.exceptions import WebDriverException
from selenium.webdriver.support.wait import WebDriverWait

from tests.conftest import option
from support.api.network_api import NetworkApi
from support.github_report import GithubHtmlReport
from tests import test_suite_data, start_threads, appium_container, pytest_config_global
from tests import transl
from tests.cloudbase_test_api import sauce, apibase

sauce_username = environ.get('SAUCE_USERNAME')

sauce_access_key = environ.get('SAUCE_ACCESS_KEY')

executor_sauce_lab = 'https://%s:%s@ondemand.%s:443/wd/hub' % (sauce_username, sauce_access_key, apibase)

executor_local = 'http://localhost:4723/wd/hub'

implicit_wait = 5


def get_capabilities_local():
    desired_caps = dict()
    if pytest_config_global['docker']:
        # apk is in shared volume directory
        apk = '/root/shared_volume/%s' % pytest_config_global['apk']
    else:
        apk = pytest_config_global['apk']
    desired_caps['app'] = apk
    desired_caps['deviceName'] = 'nexus_5'
    desired_caps['platformName'] = 'Android'
    desired_caps['appiumVersion'] = '1.9.1'
    desired_caps['platformVersion'] = '10.0'
    desired_caps['newCommandTimeout'] = 600
    desired_caps['fullReset'] = False
    desired_caps['unicodeKeyboard'] = True
    desired_caps['automationName'] = 'UiAutomator2'
    desired_caps['setWebContentDebuggingEnabled'] = True
    return desired_caps


def add_local_devices_to_capabilities():
    updated_capabilities = list()
    raw_out = re.split(r'[\r\\n]+', str(subprocess.check_output(['adb', 'devices'])).rstrip())
    for line in raw_out[1:]:
        serial = re.findall(r"(([\d.\d:]*\d+)|\bemulator-\d+)", line)
        if serial:
            capabilities = get_capabilities_local()
            capabilities['udid'] = serial[0][0]
            updated_capabilities.append(capabilities)
    return updated_capabilities


def get_capabilities_sauce_lab():
    desired_caps = dict()
    desired_caps['app'] = 'sauce-storage:' + test_suite_data.apk_name

    desired_caps['build'] = pytest_config_global['build']
    desired_caps['name'] = test_suite_data.current_test.name
    desired_caps['platformName'] = 'Android'
    desired_caps['appiumVersion'] = '1.18.1'
    desired_caps['platformVersion'] = '10.0'
    desired_caps['deviceName'] = 'Android GoogleAPI Emulator'
    desired_caps['deviceOrientation'] = "portrait"
    desired_caps['commandTimeout'] = 600
    desired_caps['idleTimeout'] = 1000
    desired_caps['unicodeKeyboard'] = True
    desired_caps['automationName'] = 'UiAutomator2'
    desired_caps['setWebContentDebuggingEnabled'] = True
    desired_caps['ignoreUnimportantViews'] = False
    desired_caps['enableNotificationListener'] = True
    desired_caps['maxDuration'] = 3600
    return desired_caps


def update_capabilities_sauce_lab(new_capabilities: dict):
    caps = get_capabilities_sauce_lab().copy()
    caps.update(new_capabilities)
    return caps


class AbstractTestCase:
    __metaclass__ = ABCMeta

    def print_sauce_lab_info(self, driver):
        sys.stdout = sys.stderr
        print("SauceOnDemandSessionID=%s job-name=%s" % (driver.session_id,
                                                         pytest_config_global['build']))

    def get_translation_by_key(self, key):
        return transl[key]

    @property
    def app_path(self):
        app_folder = 'im.status.ethereum'
        apk = pytest_config_global['apk']
        if findall(r'pr\d\d\d\d\d', apk) or findall(r'\d\d\d\d\d.apk', apk):
            app_folder += '.pr'
        app_path = '/storage/emulated/0/Android/data/%s/files/Download/' % app_folder
        return app_path

    @property
    def geth_path(self):
        return self.app_path + 'geth.log'

    @abstractmethod
    def setup_method(self, method):
        raise NotImplementedError('Should be overridden from a child class')

    @abstractmethod
    def teardown_method(self, method):
        raise NotImplementedError('Should be overridden from a child class')

    @property
    def environment(self):
        return pytest_config_global['env']

    network_api = NetworkApi()
    github_report = GithubHtmlReport()

    @staticmethod
    def is_alert_present(driver):
        try:
            return driver.find_element(MobileBy.ID, 'android:id/message')
        except NoSuchElementException:
            return False

    @staticmethod
    def get_alert_text(driver):
        return driver.find_element(MobileBy.ID, 'android:id/message').text

    def add_alert_text_to_report(self, driver):
        if self.is_alert_present(driver):
            test_suite_data.current_test.testruns[-1].error += "; also Unexpected Alert is shown: '%s'" \
                                                               % self.get_alert_text(driver)

    def pull_geth(self, driver):
        result = ""
        try:
            result = driver.pull_file(self.geth_path)
        except WebDriverException:
            pass
        return base64.b64decode(result)


class Driver(webdriver.Remote):

    @property
    def number(self):
        return test_suite_data.current_test.testruns[-1].jobs[self.session_id]

    def info(self, text: str, device=True):
        if device:
            text = 'Device %s: %s ' % (self.number, text)
        logging.info(text)
        test_suite_data.current_test.testruns[-1].steps.append(text)

    def fail(self, text: str):
        pytest.fail('Device %s: %s' % (self.number, text))


class Errors(object):
    def __init__(self):
        self.errors = list()

    def append(self, text=str()):
        self.errors.append(text)

    def verify_no_errors(self):
        if self.errors:
            pytest.fail('\n '.join([self.errors.pop(0) for _ in range(len(self.errors))]))


class SingleDeviceTestCase(AbstractTestCase):

    def setup_method(self, method, **kwargs):
        if pytest_config_global['docker']:
            appium_container.start_appium_container(pytest_config_global['docker_shared_volume'])
            appium_container.connect_device(pytest_config_global['device_ip'])

        (executor, capabilities) = (executor_sauce_lab, get_capabilities_sauce_lab()) if \
            self.environment == 'sauce' else (executor_local, get_capabilities_local())
        for key, value in kwargs.items():
            capabilities[key] = value
        self.driver = Driver(executor, capabilities)
        test_suite_data.current_test.testruns[-1].jobs[self.driver.session_id] = 1
        self.driver.implicitly_wait(implicit_wait)
        self.errors = Errors()

        if pytest_config_global['docker']:
            appium_container.reset_battery_stats()

    def teardown_method(self, method):
        if self.environment == 'sauce':
            self.print_sauce_lab_info(self.driver)
        try:
            self.add_alert_text_to_report(self.driver)
            geth_content = self.pull_geth(self.driver)
            self.driver.quit()
            if pytest_config_global['docker']:
                appium_container.stop_container()
        except (WebDriverException, AttributeError):
            pass
        finally:
            self.github_report.save_test(test_suite_data.current_test,
                                         {'%s_geth.log' % test_suite_data.current_test.name: geth_content})


class LocalMultipleDeviceTestCase(AbstractTestCase):

    def setup_method(self, method):
        self.drivers = dict()
        self.errors = Errors()

    def create_drivers(self, quantity):
        capabilities = self.add_local_devices_to_capabilities()
        for driver in range(quantity):
            self.drivers[driver] = Driver(self.executor_local, capabilities[driver])
            test_suite_data.current_test.testruns[-1].jobs[self.drivers[driver].session_id] = driver + 1
            self.drivers[driver].implicitly_wait(self.implicitly_wait)

    def teardown_method(self, method):
        for driver in self.drivers:
            try:
                self.add_alert_text_to_report(self.drivers[driver])
                self.drivers[driver].quit()
            except WebDriverException:
                pass


class SauceMultipleDeviceTestCase(AbstractTestCase):

    @classmethod
    def setup_class(cls):
        cls.loop = asyncio.new_event_loop()
        asyncio.set_event_loop(cls.loop)

    def setup_method(self, method):
        self.drivers = dict()
        self.errors = Errors()

    def create_drivers(self, quantity=2, max_duration=1800, custom_implicitly_wait=None):
        capabilities = {'maxDuration': max_duration}
        self.drivers = self.loop.run_until_complete(start_threads(quantity,
                                                                  Driver,
                                                                  self.drivers,
                                                                  executor_sauce_lab,
                                                                  update_capabilities_sauce_lab(capabilities)))
        for driver in range(quantity):
            test_suite_data.current_test.testruns[-1].jobs[self.drivers[driver].session_id] = driver + 1
            self.drivers[driver].implicitly_wait(
                custom_implicitly_wait if custom_implicitly_wait else implicit_wait)

    def teardown_method(self, method):
        geth_names, geth_contents = [], []
        for driver in self.drivers:
            try:
                self.print_sauce_lab_info(self.drivers[driver])
                self.add_alert_text_to_report(self.drivers[driver])
                geth_names.append(
                    '%s_geth%s.log' % (test_suite_data.current_test.name, str(self.drivers[driver].number)))
                geth_contents.append(self.pull_geth(self.drivers[driver]))
                self.drivers[driver].quit()
            except (WebDriverException, AttributeError):
                pass
        geth = {geth_names[i]: geth_contents[i] for i in range(len(geth_names))}
        self.github_report.save_test(test_suite_data.current_test, geth)

    @classmethod
    def teardown_class(cls):
        cls.loop.close()


def create_shared_drivers(quantity):
    drivers = dict()
    if pytest_config_global['env'] == 'local':
        capabilities = add_local_devices_to_capabilities()
        for i in range(quantity):
            driver = Driver(executor_local, capabilities[i])
            test_suite_data.current_test.testruns[-1].jobs[driver.session_id] = i + 1
            driver.implicitly_wait(implicit_wait)
            drivers[i] = driver
        loop = None
    else:
        loop = asyncio.new_event_loop()
        asyncio.set_event_loop(loop)
        capabilities = {'maxDuration': 3600}
        print('SC Executor: %s' % executor_sauce_lab)
        drivers = loop.run_until_complete(start_threads(quantity,
                                                        Driver,
                                                        drivers,
                                                        executor_sauce_lab,
                                                        update_capabilities_sauce_lab(capabilities)))
        for i in range(quantity):
            test_suite_data.current_test.testruns[-1].jobs[drivers[i].session_id] = i + 1
            drivers[i].implicitly_wait(implicit_wait)
    return drivers, loop


class LocalSharedMultipleDeviceTestCase(AbstractTestCase):

    def setup_method(self, method):
        jobs = test_suite_data.current_test.testruns[-1].jobs
        if not jobs:
            for index, driver in self.drivers.items():
                jobs[driver.session_id] = index + 1
        self.errors = Errors()

    def teardown_method(self, method):
        for driver in self.drivers:
            try:
                self.add_alert_text_to_report(self.drivers[driver])
            except WebDriverException:
                pass

    @pytest.fixture(scope='class', autouse=True)
    def prepare(self, request):
        try:
            request.cls.prepare_devices(request)
        finally:
            for item, value in request.__dict__.items():
                setattr(request.cls, item, value)

    @classmethod
    def teardown_class(cls):
        for driver in cls.drivers:
            try:
                cls.drivers[driver].quit()
            except WebDriverException:
                pass


class SauceSharedMultipleDeviceTestCase(AbstractTestCase):

    def setup_method(self, method):
        for _, driver in self.drivers.items():
            driver.execute_script("sauce:context=Started %s" % method.__name__)
        jobs = test_suite_data.current_test.testruns[-1].jobs
        if not jobs:
            for index, driver in self.drivers.items():
                jobs[driver.session_id] = index + 1
        self.errors = Errors()
        test_suite_data.current_test.group_name = self.__class__.__name__

    def teardown_method(self, method):
        geth_names, geth_contents = [], []
        for driver in self.drivers:
            try:
                self.print_sauce_lab_info(self.drivers[driver])
                self.add_alert_text_to_report(self.drivers[driver])
                geth_names.append(
                    '%s_geth%s.log' % (test_suite_data.current_test.name, str(self.drivers[driver].number)))
                geth_contents.append(self.pull_geth(self.drivers[driver]))

            except (WebDriverException, AttributeError):
                pass
            finally:
                geth = {geth_names[i]: geth_contents[i] for i in range(len(geth_names))}
                test_suite_data.current_test.geth_paths = self.github_report.save_geth(geth)

    @pytest.fixture(scope='class', autouse=True)
    def prepare(self, request):
        try:
            request.cls.prepare_devices(request)
        finally:
            for item, value in request.__dict__.items():
                setattr(request.cls, item, value)

    @classmethod
    def teardown_class(cls):
        requests_session = requests.Session()
        requests_session.auth = (sauce_username, sauce_access_key)
        for _, driver in cls.drivers.items():
            session_id = driver.session_id
            try:
                sauce.jobs.update_job(job_id=session_id, name=cls.__name__)
            except (RemoteDisconnected, SauceException):
                pass
            try:
                driver.quit()
            except WebDriverException:
                pass
            if option.datacenter == 'eu-central-1':
                url = 'https://eu-central-1.saucelabs.com/rest/v1/%s/jobs/%s/assets/%s' % (sauce_username, session_id, "log.json")
            else:
                url = sauce.jobs.get_job_asset_url(job_id=session_id, filename="log.json")
            WebDriverWait(driver, 60, 2).until(lambda _: requests_session.get(url).status_code == 200)
            commands = requests_session.get(url).json()
            for command in commands:
                try:
                    if command['message'].startswith("Started "):
                        for test in test_suite_data.tests:
                            if command['message'] == "Started %s" % test.name:
                                test.testruns[-1].first_commands[session_id] = commands.index(command) + 1
                except KeyError:
                    continue
        cls.loop.close()
        for test in test_suite_data.tests:
            cls.github_report.save_test(test)


if pytest_config_global['env'] == 'local':
    MultipleDeviceTestCase = LocalMultipleDeviceTestCase
    MultipleSharedDeviceTestCase = LocalSharedMultipleDeviceTestCase
else:
    MultipleDeviceTestCase = SauceMultipleDeviceTestCase
    MultipleSharedDeviceTestCase = SauceSharedMultipleDeviceTestCase


class NoDeviceTestCase(AbstractTestCase):

    def setup_method(self, method, **kwargs):
        pass

    def teardown_method(self, method):
        self.github_report.save_test(test_suite_data.current_test)