''' functional tests for ordr2 '''

import os.path
import pytest
import transaction
import webtest

from .. import APP_SETTINGS, create_users, get_user


WEBTEST_SETTINGS = APP_SETTINGS.copy()
# WEBTEST_SETTINGS.update({ })


class CustomTestApp(webtest.TestApp):
    ''' adds login and logout methods to webtest.TestApp '''

    def reset(self):
        ''' logs out any user and resets the state of the application '''
        self.logout()
        super().reset()


    def logout(self):
        ''' perfomes a logout of a user '''
        self.get('/account/logout')


    def login(self, role_name):
        ''' perfomes a logs in of a user '''
        # do a logout first, testapp fixture scope is on module level
        self.logout()
        user = get_user(role_name)

        response = self.get('/')
        login_form = response.forms['login-form']
        login_form.set('username', user.username)
        login_form.set('password', user.first_name)
        login_form.submit()



@pytest.fixture(scope='module')
def testapp():
    ''' fixture for using webtest '''
    from ordr2.models.meta import Base
    from ordr2.models import get_tm_session, Role
    from ordr2 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)