import unittest

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By

class TestScenarioA(unittest.TestCase):

    def setUp(self):
        self.driver = webdriver.Firefox()
        self.base_url = "http://localhost:3000"
        self.title_xpath = "//li[last()][contains(concat(' ',normalize-space(@class),' '),' media ')]/div/h5"
        self.form_xpath = "//form"
        self.workshop_url = self.base_url + "/workshop"

    def add_workshop(self, driver, title, description):
        driver.get(self.workshop_url)

        # get form elements
        ws = driver.find_element(by=By.ID, value="name")
        desc = driver.find_element(by=By.ID, value="description")
        button = driver.find_element(by=By.CSS_SELECTOR, value="button[type='submit']")

        ws.send_keys(title)
        desc.send_keys(description)
        button.click()


    def is_element_exist(self, selector, element):
        try: 
            self.driver.find_element(by=selector, value=element)
        except NoSuchElementException as e: 
            return False
        return True

    def test_A_1(self):
        driver = self.driver
        driver.get(self.base_url)
        button = driver.find_element(by=By.CLASS_NAME, value="btn")
        button.click()
        self.assertNotIn(driver.title, "Error")

        self.assertTrue(self.is_element_exist(By.XPATH, self.form_xpath))
        self.assertTrue(self.is_element_exist(By.ID, "name"))
        self.assertTrue(self.is_element_exist(By.ID, "description"))

    def test_A_2(self):
        driver = self.driver
        driver.get(self.workshop_url)
        button = driver.find_element(by=By.LINK_TEXT, value="Cancel")
        button.click()
        self.assertEqual(driver.current_url, self.base_url + '/')

    def test_A_3(self):
        self.add_workshop(self.driver, "My workshop", "")
        self.assertNotEqual(self.driver.current_url, self.base_url)

    def test_A_4(self):
        self.add_workshop(self.driver, "My workshop", "")
        self.assertNotEqual(self.driver.current_url, self.base_url)

    def test_A_5(self):
        self.add_workshop(self.driver, "My workshop", "This is a test")
        ws_title = self.driver.find_elements(by=By.XPATH, value=self.title_xpath)
        self.assertEqual(ws_title[0].text, "My workshop")

        self.add_workshop(self.driver, "second workshop", "This is a test")
        ws_title = self.driver.find_elements(by=By.XPATH, value=self.title_xpath)
        self.assertEqual(ws_title[0].text, "second workshop")

    def tearDown(self):
        self.driver.close()

if __name__ == '__main__':
    unittest.main()