''' functional tests for ordr2 '''

import pytest
import re
import transaction
import webtest

from bs4 import BeautifulSoup

from .. import APP_SETTINGS, get_example_user


WEBTEST_SETTINGS = APP_SETTINGS.copy()
WEBTEST_SETTINGS['pyramid.includes'] = [
    'pyramid_mailer.testing'
    ]


class CustomTestApp(webtest.TestApp):
    ''' might add custom functionality to webtest.TestApp '''
    pass
    
    def login(self, username, password):
        ''' login '''
        self.logout()
        result = self.get('/login')
        login_form = result.forms[0]
        login_form['username'] = username
        login_form['password'] = password
        login_form.submit()
        response = self.get('/faq')
        return username in response
        
    def logout(self):
        ''' logout '''
        self.get('/logout')
    
    def reset(self):
        ''' reset the webapp '''
        self.logout()
        super().reset()


def create_users(dbsession):
    ''' create example users '''
    from ordr.models.account import Role
    for role in Role:
        user = get_example_user(role)
        dbsession.add(user)


def get_token_url(email, prefix='/'):
    ''' extracts an account token url from an email '''
    soup = BeautifulSoup(email.html, 'html.parser')
    for link in soup.find_all('a'):
        if re.search(prefix + '[a-f0-9]{32}', link['href']):
            return link['href']


@pytest.fixture(scope='module')
def testappsetup():
    ''' setup of fixture for using webtest
    
    this fixture just sets up the testapp. please use the testapp() fixture
    below for real tests.
    '''
    from ordr.models.meta import Base
    from ordr.models import get_tm_session
    from ordr import main

    app = main({}, **WEBTEST_SETTINGS)
    testapp = CustomTestApp(app)

    session_factory = app.registry['dbsession_factory']
    engine = session_factory.kw['bind']
    Base.metadata.create_all(engine)

    with transaction.manager:
        # set up test data here
        dbsession = get_tm_session(session_factory, transaction.manager)
        create_users(dbsession)

    yield testapp

    Base.metadata.drop_all(engine)


@pytest.fixture(scope='function')
def testapp(testappsetup):
    ''' fixture using webtests, resets the logged every time '''
    testappsetup.reset()
    yield testappsetup