import deform

from pyramid.httpexceptions import HTTPFound
from pyramid.testing import DummyRequest, DummyResource

from .. import (   # noqa: F401
    app_config,
    dbsession,
    get_example_user,
    get_post_request
    )


REGISTRATION_FORM_DATA = {
    'username': 'AmyMcDonald',
    'first_name': 'Amy',
    'last_name': 'McDonald',
    'email': 'amy.mcdonald@example.com',
    '__start__': 'password:mapping',
    'password': 'Make Amy McDonald A Rich Girl Fund',
    'password-confirm': 'Make Amy McDonald A Rich Girl Fund',
    '__end__': 'password:mapping',
    'create': 'create account'
    }


def test_registration_form():
    ''' test the view for the registration form '''
    from ordr.resources.account import RegistrationResource
    from ordr.schemas.account import RegistrationSchema
    from ordr.views.registration import registration_form

    request = DummyRequest()
    parent = DummyResource(request=request)
    context = RegistrationResource(name=None, parent=parent)
    result = registration_form(context, None)
    form = result['form']

    assert isinstance(form, deform.Form)
    assert isinstance(form.schema, RegistrationSchema)


def test_registration_form_valid(dbsession):  # noqa: F811
    ''' test processing the registration form with valid data '''
    from ordr.models.account import User, Role, TokenSubject
    from ordr.resources.account import RegistrationResource
    from ordr.views.registration import registration_form_processing

    data = REGISTRATION_FORM_DATA.copy()
    request = get_post_request(data, dbsession=dbsession)
    parent = DummyResource(request=request)
    context = RegistrationResource(name=None, parent=parent)
    result = registration_form_processing(context, request)

    # return value of function call
    assert isinstance(result, HTTPFound)
    assert result.location == 'http://example.com//verify'

    # user should be added to database
    user = dbsession.query(User).first()
    assert user.username == data['username']
    assert user.first_name == data['first_name']
    assert user.last_name == data['last_name']
    assert user.email == data['email']
    assert user.check_password(data['password'])
    assert user.role == Role.UNVALIDATED

    # a token should be created
    token = user.tokens[0]
    assert token.subject == TokenSubject.REGISTRATION

    # a verification email should be sent
    # this is tested in the functional test since request.registry.notify
    # doesn't know about event subscribers in the unittest


def test_registration_form_invalid(dbsession):  # noqa: F811
    ''' test processing registration form with invalid data '''
    from ordr.views.registration import registration_form_processing
    from ordr.resources.account import RegistrationResource
    
    data = REGISTRATION_FORM_DATA.copy()
    data['email'] = 'not an email address'
    request = get_post_request(data, dbsession=dbsession)
    parent = DummyResource(request=request)
    context = RegistrationResource(name=None, parent=parent)
    result = registration_form_processing(context, request)
    
    assert result['form'].error is not None


def test_registration_form_no_create_button(dbsession):  # noqa: F811
    ''' test processing registration form, create button not clicked '''
    from ordr.views.registration import registration_form_processing
    from ordr.resources.account import RegistrationResource
    
    data = REGISTRATION_FORM_DATA.copy()
    data.pop('create')
    request = get_post_request(data, dbsession=dbsession)
    parent = DummyResource(request=request)
    context = RegistrationResource(name=None, parent=parent)
    result = registration_form_processing(context, request)
    
    assert result.location == 'http://example.com//'


def test_registration_verify():
    ''' test the view displaying that a verifcation email has been sent '''
    from ordr.views.registration import verify
    result = verify(None, None)
    assert result == {}


def test_registration_completed(dbsession):  # noqa: F811
    ''' test the view for the completed registration process '''
    from ordr.models.account import User, Role, Token, TokenSubject
    from ordr.views.registration import completed

    request = DummyRequest(dbsession=dbsession)
    user = get_example_user(Role.UNVALIDATED)
    user.issue_token(request, TokenSubject.REGISTRATION)
    dbsession.add(user)
    dbsession.flush()
    token = user.tokens[0]
    context = DummyResource(model=token)
    result = completed(context, request)

    assert result == {}
    assert user.role == Role.NEW
    assert dbsession.query(Token).count() == 0
    assert dbsession.query(User).count() == 1