import asyncio
import logging
import re
import subprocess
import sys
from abc import ABCMeta, abstractmethod
from os import environ

import pytest
from appium import webdriver
from appium.webdriver.common.mobileby import MobileBy
from selenium.common.exceptions import NoSuchElementException
from selenium.common.exceptions import WebDriverException

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

class AbstractTestCase:
    __metaclass__ = ABCMeta

    @property
    def sauce_username(self):
        return environ.get('SAUCE_USERNAME')

    @property
    def sauce_access_key(self):
        return environ.get('SAUCE_ACCESS_KEY')

    @property
    def executor_sauce_lab(self):
        return 'http://%s:%s@ondemand.saucelabs.com:80/wd/hub' % (self.sauce_username, self.sauce_access_key)

    @property
    def executor_local(self):
        return 'http://localhost:4723/wd/hub'

    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 add_local_devices_to_capabilities(self):
        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 = self.capabilities_local
                capabilities['udid'] = serial[0][0]
                updated_capabilities.append(capabilities)
        return updated_capabilities

    @property
    def capabilities_sauce_lab(self):
        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'] = '1.16.0'
        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'] = 1800
        return desired_caps

    def update_capabilities_sauce_lab(self, new_capabilities: dict):
        caps = self.capabilities_sauce_lab.copy()
        caps.update(new_capabilities)
        return caps

    @property
    def capabilities_local(self):
        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'] = pytest_config_global['platform_version']
        desired_caps['newCommandTimeout'] = 600
        desired_caps['fullReset'] = False
        desired_caps['unicodeKeyboard'] = True
        desired_caps['automationName'] = 'UiAutomator2'
        desired_caps['setWebContentDebuggingEnabled'] = True
        return desired_caps

    @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']

    @property
    def implicitly_wait(self):
        return 5

    network_api = NetworkApi()
    github_report = GithubHtmlReport()

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

    def get_alert_text(self, 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)


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):
        if "Base" not in text:
            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) = (self.executor_sauce_lab, self.capabilities_sauce_lab) if \
            self.environment == 'sauce' else (self.executor_local, self.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(self.implicitly_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)
            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)


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(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,
                                                                  self.executor_sauce_lab,
                                                                  self.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 self.implicitly_wait)

    def teardown_method(self, method):
        for driver in self.drivers:
            try:
                self.print_sauce_lab_info(self.drivers[driver])
                self.add_alert_text_to_report(self.drivers[driver])
                self.drivers[driver].quit()
            except (WebDriverException, AttributeError):
                pass
            finally:
                self.github_report.save_test(test_suite_data.current_test)

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


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


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)