from functools import partial

from django.conf import settings
from django.core.urlresolvers import reverse
from selenium.webdriver.support.select import Select

from orchestra.apps.accounts.models import Account
from orchestra.apps.orchestration.models import Server, Route
from orchestra.utils.system import run
from orchestra.utils.tests import BaseLiveServerTestCase, random_ascii

from ... import backends
from ...models import SystemUser


r = partial(run, silent=True, display=False)


class SystemUserMixin(object):
    MASTER_ADDR = 'localhost'
    ACCOUNT_USERNAME = '%s_account' % random_ascii(10)
    DEPENDENCIES = (
        'orchestra.apps.orchestration',
        'orcgestra.apps.systemusers',
    )
    
    def setUp(self):
        super(SystemUserMixin, self).setUp()
        self.add_route()
    
    def add_route(self):
        master = Server.objects.create(name=self.MASTER_ADDR)
        backend = backends.SystemUserBackend.get_name()
        Route.objects.create(backend=backend, match=True, host=master)
    
    def add(self):
        raise NotImplementedError
    
    def delete(self):
        raise NotImplementedError
    
    def update(self):
        raise NotImplementedError
    
    def disable(self):
        raise NotImplementedError
    
    def test_create_systemuser(self):
        username = '%s_systemuser' % random_ascii(10)
        password = '@!?%spppP001' % random_ascii(5)
        self.add(username, password)
        self.addCleanup(partial(self.delete, username))
        self.assertEqual(0, r("id %s" % username).return_code)
        # TODO test group membership and everything
    
    def test_delete_systemuser(self):
        username = '%s_systemuser' % random_ascii(10)
        password = '@!?%sppppP001' % random_ascii(5)
        self.add(username, password)
        self.assertEqual(0, r("id %s" % username).return_code)
        self.delete(username)
        self.assertEqual(1, r("id %s" % username, error_codes=[0,1]).return_code)
    
    def test_update_systemuser(self):
        pass
        # TODO
    
    def test_disable_systemuser(self):
        pass
        # TODO

# TODO test with ftp and ssh clients?

class RESTSystemUserMixin(SystemUserMixin):
    def setUp(self):
        super(RESTSystemUserMixin, self).setUp()
        self.rest_login()
    
    def add(self, username, password):
        self.rest.systemusers.create(username=username, password=password)
    
    def delete(self, username):
        user = self.rest.systemusers.retrieve(username=username).get()
        user.delete()
    
    def update(self):
        pass


class AdminSystemUserMixin(SystemUserMixin):
    def setUp(self):
        super(AdminSystemUserMixin, self).setUp()
        self.admin_login()
    
    def add(self, username, password):
        url = self.live_server_url + reverse('admin:systemusers_systemuser_add')
        self.selenium.get(url)
        
        username_field = self.selenium.find_element_by_id('id_username')
        username_field.send_keys(username)
        
        password_field = self.selenium.find_element_by_id('id_password1')
        password_field.send_keys(password)
        password_field = self.selenium.find_element_by_id('id_password2')
        password_field.send_keys(password)
        
        account_input = self.selenium.find_element_by_id('id_account')
        account_select = Select(account_input)
        account_select.select_by_value(str(self.account.pk))
        
        username_field.submit()
        self.assertNotEqual(url, self.selenium.current_url)
    
    def delete(self, username):
        user = SystemUser.objects.get(username=username)
        url = self.live_server_url + reverse('admin:systemusers_systemuser_delete', args=(user.pk,))
        self.selenium.get(url)
        confirmation = self.selenium.find_element_by_name('post')
        confirmation.submit()
    
    def disable(self, username):
        pass
    
    def update(self):
        pass


class RESTSystemUserTest(RESTSystemUserMixin, BaseLiveServerTestCase):
    pass


class AdminSystemUserTest(AdminSystemUserMixin, BaseLiveServerTestCase):
    def test_create_account(self):
        url = self.live_server_url + reverse('admin:accounts_account_add')
        self.selenium.get(url)
        
        account_username = '%s_account' % random_ascii(10)
        username = self.selenium.find_element_by_id('id_username')
        username.send_keys(account_username)
        
        account_password = '@!?%spppP001' % random_ascii(5)
        password = self.selenium.find_element_by_id('id_password1')
        password.send_keys(account_password)
        password = self.selenium.find_element_by_id('id_password2')
        password.send_keys(account_password)
        
        account_email = 'orchestra@orchestra.lan'
        email = self.selenium.find_element_by_id('id_email')
        email.send_keys(account_email)
        
        contact_short_name = random_ascii(10)
        short_name = self.selenium.find_element_by_id('id_contacts-0-short_name')
        short_name.send_keys(contact_short_name)
        
        email = self.selenium.find_element_by_id('id_contacts-0-email')
        email.send_keys(account_email)
        email.submit()
        
        account = Account.objects.get(username=account_username)
        self.addCleanup(account.delete)
        self.assertNotEqual(url, self.selenium.current_url)
        self.assertEqual(0, r("id %s" % account.username).return_code)