# Copyright 2018 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

import os
import pytest
import time
import yaml

from pathlib import Path
from selenium.common.exceptions import TimeoutException
from selenium.common.exceptions import WebDriverException
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import Select
from selenium.webdriver.support.ui import WebDriverWait

home = Path.home()
subpath = '/testinfra/screenshots/'
screenshot_path = str(home) + subpath

with open("/etc/kolla/passwords.yml", 'r') as file:
    passwords = yaml.safe_load(file)
    admin_password = passwords.get('keystone_admin_password')


def test_horizon_screenshot(host):

    firefox_options = webdriver.FirefoxOptions()
    selenium_url = host.environment().get(
        'SELENIUM_REMOTE_URL', 'http://localhost:4500/wd/hub')

    driver = webdriver.Remote(
        command_executor=selenium_url,
        options=firefox_options)

    horizon_proto = host.environment().get('HORIZON_PROTO')
    horizon_url = horizon_proto + "://192.0.2.10"

    try:
        driver.get(horizon_url)
        WebDriverWait(driver, 30).until(
            lambda driver: driver.execute_script(
                'return document.readyState') == 'complete')

        time.sleep(5)

        original_size = driver.get_window_size()
        required_width = driver.execute_script(
            'return document.body.parentNode.scrollWidth')
        required_height = driver.execute_script(
            'return document.body.parentNode.scrollHeight') + 100
        driver.set_window_size(required_width, required_height)

        driver.find_element(By.TAG_NAME, 'body').\
            screenshot(screenshot_path + "horizon-main.png")  # nosec B108

        driver.set_window_size(
            original_size['width'], original_size['height'])

        assert 'Login' in driver.title  # nosec B101

    except TimeoutException as e:
        raise e
    finally:
        driver.quit()


def test_horizon_login(host):

    firefox_options = webdriver.FirefoxOptions()
    selenium_url = host.environment().get(
        'SELENIUM_REMOTE_URL', 'http://localhost:4500/wd/hub')

    driver = webdriver.Remote(
        command_executor=selenium_url,
        options=firefox_options)

    horizon_proto = host.environment().get('HORIZON_PROTO')
    horizon_url = horizon_proto + "://192.0.2.10"
    login_url = '/'.join((
                horizon_url,
                'auth',
                'login'))

    try:
        driver.get(login_url)
        user_field = driver.find_element(By.ID, 'id_username')
        user_field.send_keys('admin')
        pass_field = driver.find_element(By.ID, 'id_password')
        pass_field.send_keys(admin_password)
        button = driver.find_element(By.CSS_SELECTOR, '.btn-primary')
        button.click()
        WebDriverWait(driver, 30).until(
            lambda driver: driver.execute_script(
                'return document.readyState') == 'complete')

        time.sleep(10)

        original_size = driver.get_window_size()
        required_width = driver.execute_script(
            'return document.body.parentNode.scrollWidth')
        required_height = driver.execute_script(
            'return document.body.parentNode.scrollHeight') + 100
        driver.set_window_size(required_width, required_height)

        driver.find_element(By.TAG_NAME, 'body').\
            screenshot(screenshot_path + "horizon-logged-in.png")  # nosec B108

        driver.set_window_size(
            original_size['width'], original_size['height'])

        assert 'Overview - OpenStack Dashboard' in driver.title  # nosec B101

    except TimeoutException as e:
        raise e
    finally:
        driver.quit()


@pytest.mark.skipif(
    os.getenv("SCENARIO") != "federation",
    reason=(
        "Current scenario is not federation. "
        "Not running test."
    )
)
def test_horizon_login_federation(host):

    firefox_options = webdriver.FirefoxOptions()
    selenium_url = host.environment().get(
        'SELENIUM_REMOTE_URL', 'http://localhost:4500/wd/hub')

    driver = webdriver.Remote(
        command_executor=selenium_url,
        options=firefox_options)

    horizon_proto = host.environment().get('HORIZON_PROTO')
    horizon_url = horizon_proto + "://192.0.2.10"
    login_url = '/'.join((
                horizon_url,
                'auth',
                'login'))

    try:
        driver.get(login_url)
        auth_type_field = driver.find_element(By.ID, 'id_auth_type')
        select = Select(auth_type_field)
        select.select_by_value('example_provider_openid')
        button = driver.find_element(By.CSS_SELECTOR, '.btn-primary')

        try:
            button.click()
        except WebDriverException as e:
            if "Reached error page" in str(e) or "dnsNotFound" in str(e):
                pass  # This is expected behavior, so we ignore the exception
            else:
                raise  # Re-raise if it failed for an unexpected reason

        assert "idp.example.org" in driver.current_url  # nosec B101

    except TimeoutException as e:
        raise e
    finally:
        driver.quit()