''' Tests for ordr2.views.account '''

import deform
import pytest

from pyramid.httpexceptions import HTTPFound
from pyramid.testing import DummyRequest, DummyResource
from pyramid_mailer import get_mailer
from webob.multidict import MultiDict

from .. import app_config, dbsession, get_user, create_users, set_deform_data


REGISTRATION_FORM_DATA = MultiDict([
    ('username', 'AmyMcDonald'),
    ('first_name', 'Amy'),
    ('last_name', 'McDonald'),
    ('email', 'mcdonald@example.com'),
    ('__start__', 'password:mapping'),
    ('password', 'Amy'),
    ('password-confirm', 'Amy'),
    ('__end__', 'password:mapping'),
    ])


@pytest.mark.parametrize('rolename', ['user', 'purchaser', 'admin'])
def test_account_login_active_users(dbsession, rolename):
    ''' login ok for active users '''
    from ordr2.views.account import login
    create_users(dbsession)

    user = get_user(rolename)
    request = DummyRequest(
        dbsession=dbsession,
        post={
            'username': user.username,
            'password': user.first_name
            }
        )
    result = login(None, request)

    assert isinstance(result, HTTPFound)
    assert result.location == '//orders'


@pytest.mark.parametrize('rolename', ['unvalidated', 'new', 'inactive'])
def test_account_login_fails_inactive_users(dbsession, rolename):
    ''' login fails for inactive users '''
    from ordr2.views.account import login
    create_users(dbsession)

    user = get_user(rolename)
    request = DummyRequest(
        dbsession=dbsession,
        post={
            'username': user.username,
            'password': user.first_name
            }
        )
    result = login(None, request)

    assert result == {}


@pytest.mark.parametrize(
    'username, password', [
        ('EricIdle', 'wrong password'),
        ('unknown user', 'Eric'),
        ('unknown user', 'wrong password'),
        ('', '')
        ]
    )
def test_account_login_fails_wrong_credentials(dbsession, username, password):
    ''' login fails for unknown or wrong credentials '''
    from ordr2.views.account import login
    create_users(dbsession)

    request = DummyRequest(
        dbsession=dbsession,
        post={
            'username': username,
            'password': password
            }
        )
    result = login(None, request)

    assert result == {}


def test_logout(app_config):
    ''' logout works '''
    from ordr2.views.account import logout
    user = get_user('admin')

    request = DummyRequest(user=user)
    result = logout(None, request)

    assert isinstance(result, HTTPFound)
    assert result.location == 'http://example.com//'


def test_registration_form(app_config):
    ''' registration form '''
    from ordr2.views.account import registration_form

    request = DummyRequest()
    context = DummyResource()
    result = registration_form(context, request)

    assert isinstance(result['form'], deform.Form)


def test_registration_form_processing_ok(dbsession):
    ''' registration form processing with valid data'''
    from ordr2.models.account import User, Role, TokenSubject
    from ordr2.views.account import registration_form_processing

    user = get_user('user')  # intentionally not added to database
    context = DummyResource(model=user)
    request = DummyRequest(dbsession=dbsession, context=context)
    set_deform_data(request, REGISTRATION_FORM_DATA)
    result = registration_form_processing(context, request)

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

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

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

    # and a verification email should be sent
    # mailer = get_mailer(request.registry)
    # last_mail = mailer.outbox[-1]
    # assert 'Please verify your email address ' in last_mail.html
    # assert 'http://example.com/' + token.hash in last_mail.html


def test_registration_form_processing_cancel(app_config):
    ''' canceling registration form processing '''
    from ordr2.models.account import User, Role, TokenSubject
    from ordr2.views.account import registration_form_processing

    user = get_user('user')  # intentionally not added to database
    context = DummyResource(model=user)
    request = DummyRequest(dbsession=dbsession, context=context)
    set_deform_data(request, REGISTRATION_FORM_DATA, {'Cancel': 'Cancel'})
    result = registration_form_processing(context, request)

    assert isinstance(result, HTTPFound)
    assert result.location == 'http://example.com//'


@pytest.mark.parametrize(
    'key,value', [
        ('username', ''),
        ('username', 'TerryGilliam'),
        ('first_name', ''),
        ('last_name', ''),
        ('email', ''),
        ('email', 'no email'),
        ('email', 'gilliam@example.com'),
        ('password', ''),
        ('password-confirm', ''),
        ('password-confirm', 'no match')
        ]
    )
def test_registration_form_processing_validation_error(dbsession, key, value):
    ''' registration form processing with valid data'''
    from ordr2.models.account import User, Role, TokenSubject
    from ordr2.views.account import registration_form_processing

    admin = get_user('user')
    dbsession.add(admin)
    context = DummyResource(model=get_user('admin'))
    request = DummyRequest(dbsession=dbsession, context=context)
    set_deform_data(request, REGISTRATION_FORM_DATA, {key: value})
    result = registration_form_processing(context, request)

    # return value of function call
    assert isinstance(result['form'], deform.Form)