''' 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()
    
    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():
    ''' 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