# test_functional.py

# functional test test the application from the outside
import time

from django.test import LiveServerTestCase
from selenium import webdriver
from selenium.common.exceptions import WebDriverException
from selenium.webdriver.common.keys import Keys


class NewVisitorTest(LiveServerTestCase):
    MAX_WAIT = 10

    def setUp(self):
        self.browser = webdriver.Chrome()

    def tearDown(self):
        # Satisfied, she goes back to sleep
        self.browser.quit()

    def assert_row_text_in_table(self, row_text):
        start_time = time.time()

        while True:
            try:
                table = self.browser.find_element_by_id('id_list_table')
                rows = table.find_elements_by_tag_name('tr')
                self.assertIn(row_text, [row.text for row in rows])
                return

            except (AssertionError, WebDriverException) as e:
                if time.time() - start_time > self.MAX_WAIT:
                    raise e
                else:
                    time.sleep(0.5)

    def test_can_start_a_list_and_retrieve_it_later(self):
        # Edith has heard about a cool new online to-do app. She goes
        # to check out its homepage
        self.browser.get(self.live_server_url)

        # She notices the page title and header mention to-do lists
        self.assertIn('Personal todo list', self.browser.title)

        header_text = self.browser.find_element_by_tag_name('h1').text
        self.assertIn('Todo', header_text)

        # She notices there is not tasks assign to her as soon as she
        # arrives at the page
        self.assert_row_text_in_table("No tasks assigned to you. Enjoy your day!")

        # She is invited to enter a to-do item straight away
        inputbox = self.browser.find_element_by_id('id_item_text')
        self.assertEquals(
            inputbox.get_attribute('placeholder'),
            'Enter an item...'
        )

        # She types "Buy peacock feathers" into a text box (Edith's hobby
        # is tying fly-fishing lures)
        inputbox.send_keys('Buy peacock feathers')

        # When she hits enter, the page updates, and now the page lists
        # "1: Buy peacock feathers" as an item in a to-do list
        inputbox.send_keys(Keys.ENTER)
        self.browser.refresh()
        self.assert_row_text_in_table("1: Buy peacock feathers")

        # There is still a text box inviting her to add another item. She
        # enters "Use peacock feathers to make a fly" (Edith is very methodical)
        inputbox = self.browser.find_element_by_id('id_item_text')
        inputbox.send_keys('Use peacock feathers to make a fly')
        inputbox.send_keys(Keys.ENTER)
        self.browser.refresh()

        # The page updates again, and now shows both items on her list
        self.assert_row_text_in_table("1: Buy peacock feathers")
        self.assert_row_text_in_table("2: Use peacock feathers to make a fly")

        # Edith wonders whether the site will remember her list. Then she sees
        # that the site has generated a unique URL for her -- there is some
        # explanatory text to that effect.
        self.fail('Finish the test!')

        # She visits that URL - her to-do list is still there.
