import pytest

from util.config.validator import ValidatorContext
from util.config.validators import ConfigValidationException
from util.config.validators.validate_ldap import LDAPValidator
from util.morecollections import AttrDict

from test.test_ldap import mock_ldap

from test.fixtures import *
from app import config_provider

@pytest.mark.parametrize('unvalidated_config', [
  ({}),
  ({'AUTHENTICATION_TYPE': 'Database'}),
])
def test_validate_noop(unvalidated_config, app):
  config = ValidatorContext(unvalidated_config)
  config.config_provider = config_provider
  LDAPValidator.validate(config)

@pytest.mark.parametrize('unvalidated_config', [
  ({'AUTHENTICATION_TYPE': 'LDAP'}),
  ({'AUTHENTICATION_TYPE': 'LDAP', 'LDAP_ADMIN_DN': 'foo'}),
])
def test_invalid_config(unvalidated_config, app):
  with pytest.raises(ConfigValidationException):
    config = ValidatorContext(unvalidated_config)
    config.config_provider = config_provider
    LDAPValidator.validate(config)


@pytest.mark.parametrize('uri', [
  'foo',
  'http://foo',
  'ldap:foo',
])
def test_invalid_uri(uri, app):
  config = {}
  config['AUTHENTICATION_TYPE'] = 'LDAP'
  config['LDAP_BASE_DN'] = ['dc=quay', 'dc=io']
  config['LDAP_ADMIN_DN'] = 'uid=testy,ou=employees,dc=quay,dc=io'
  config['LDAP_ADMIN_PASSWD'] = 'password'
  config['LDAP_USER_RDN'] = ['ou=employees']
  config['LDAP_URI'] = uri

  with pytest.raises(ConfigValidationException):
    config = ValidatorContext(config)
    config.config_provider = config_provider
    LDAPValidator.validate(config)


@pytest.mark.parametrize('username, password, expected_exception', [
  ('invaliduser', 'invalidpass', ConfigValidationException),
  ('someuser', 'invalidpass', ConfigValidationException),
  ('invaliduser', 'somepass', ConfigValidationException),
  ('someuser', 'somepass', None),
])
def test_validated_ldap(username, password, expected_exception, app):
  config = {}
  config['AUTHENTICATION_TYPE'] = 'LDAP'
  config['LDAP_BASE_DN'] = ['dc=quay', 'dc=io']
  config['LDAP_ADMIN_DN'] = 'uid=testy,ou=employees,dc=quay,dc=io'
  config['LDAP_ADMIN_PASSWD'] = 'password'
  config['LDAP_USER_RDN'] = ['ou=employees']

  unvalidated_config = ValidatorContext(config)
  unvalidated_config.user = AttrDict(dict(username=username))
  unvalidated_config.user_password = password
  unvalidated_config.config_provider = config_provider

  if expected_exception is not None:
    with pytest.raises(ConfigValidationException):
      with mock_ldap():
        LDAPValidator.validate(unvalidated_config)
  else:
    with mock_ldap():
      LDAPValidator.validate(unvalidated_config)