import unittest
import mock

from data.database import User
from data import model

from config_app.config_endpoints.api.suconfig import SuperUserConfig, SuperUserConfigValidate, SuperUserConfigFile, \
  SuperUserRegistryStatus, SuperUserCreateInitialSuperUser
from config_app.config_endpoints.api import api_bp
from config_app.config_test import ApiTestCase, READ_ACCESS_USER, ADMIN_ACCESS_USER
from config_app.c_app import app, config_provider

try:
  app.register_blueprint(api_bp, url_prefix='/api')
except ValueError:
  # This blueprint was already registered
  pass

# OVERRIDES FROM PORTING FROM OLD APP:
all_queues = [] # the config app doesn't have any queues

class FreshConfigProvider(object):
  def __enter__(self):
    config_provider.reset_for_test()
    return config_provider

  def __exit__(self, type, value, traceback):
    config_provider.reset_for_test()


class TestSuperUserRegistryStatus(ApiTestCase):
  def test_registry_status_no_config(self):
    with FreshConfigProvider():
      json = self.getJsonResponse(SuperUserRegistryStatus)
      self.assertEquals('config-db', json['status'])

  @mock.patch("config_app.config_endpoints.api.suconfig.database_is_valid", mock.Mock(return_value=False))
  def test_registry_status_no_database(self):
    with FreshConfigProvider():
      config_provider.save_config({'key': 'value'})
      json = self.getJsonResponse(SuperUserRegistryStatus)
      self.assertEquals('setup-db', json['status'])

  @mock.patch("config_app.config_endpoints.api.suconfig.database_is_valid", mock.Mock(return_value=True))
  def test_registry_status_db_has_superuser(self):
    with FreshConfigProvider():
      config_provider.save_config({'key': 'value'})
      json = self.getJsonResponse(SuperUserRegistryStatus)
      self.assertEquals('config', json['status'])

  @mock.patch("config_app.config_endpoints.api.suconfig.database_is_valid", mock.Mock(return_value=True))
  @mock.patch("config_app.config_endpoints.api.suconfig.database_has_users", mock.Mock(return_value=False))
  def test_registry_status_db_no_superuser(self):
    with FreshConfigProvider():
      config_provider.save_config({'key': 'value'})
      json = self.getJsonResponse(SuperUserRegistryStatus)
      self.assertEquals('create-superuser', json['status'])

  @mock.patch("config_app.config_endpoints.api.suconfig.database_is_valid", mock.Mock(return_value=True))
  @mock.patch("config_app.config_endpoints.api.suconfig.database_has_users", mock.Mock(return_value=True))
  def test_registry_status_setup_complete(self):
    with FreshConfigProvider():
      config_provider.save_config({'key': 'value', 'SETUP_COMPLETE': True})
      json = self.getJsonResponse(SuperUserRegistryStatus)
      self.assertEquals('config', json['status'])

class TestSuperUserConfigFile(ApiTestCase):
  def test_get_superuser_invalid_filename(self):
    with FreshConfigProvider():
      self.getResponse(SuperUserConfigFile, params=dict(filename='somefile'), expected_code=404)

  def test_get_superuser(self):
    with FreshConfigProvider():
      result = self.getJsonResponse(SuperUserConfigFile, params=dict(filename='ssl.cert'))
      self.assertFalse(result['exists'])

  def test_post_no_file(self):
    with FreshConfigProvider():
      # No file
      self.postResponse(SuperUserConfigFile, params=dict(filename='ssl.cert'), expected_code=400)

  def test_post_superuser_invalid_filename(self):
    with FreshConfigProvider():
      self.postResponse(SuperUserConfigFile, params=dict(filename='somefile'), expected_code=404)

  def test_post_superuser(self):
    with FreshConfigProvider():
      self.postResponse(SuperUserConfigFile, params=dict(filename='ssl.cert'), expected_code=400)


class TestSuperUserCreateInitialSuperUser(ApiTestCase):
  def test_no_config_file(self):
    with FreshConfigProvider():
      # If there is no config.yaml, then this method should security fail.
      data = dict(username='cooluser', password='password', email='fake@example.com')
      self.postResponse(SuperUserCreateInitialSuperUser, data=data, expected_code=403)

  def test_config_file_with_db_users(self):
    with FreshConfigProvider():
      # Write some config.
      self.putJsonResponse(SuperUserConfig, data=dict(config={}, hostname='foobar'))

      # If there is a config.yaml, but existing DB users exist, then this method should security
      # fail.
      data = dict(username='cooluser', password='password', email='fake@example.com')
      self.postResponse(SuperUserCreateInitialSuperUser, data=data, expected_code=403)

  def test_config_file_with_no_db_users(self):
    with FreshConfigProvider():
      # Write some config.
      self.putJsonResponse(SuperUserConfig, data=dict(config={}, hostname='foobar'))

      # Delete all the users in the DB.
      for user in list(User.select()):
        model.user.delete_user(user, all_queues)

      # This method should now succeed.
      data = dict(username='cooluser', password='password', email='fake@example.com')
      result = self.postJsonResponse(SuperUserCreateInitialSuperUser, data=data)
      self.assertTrue(result['status'])

      # Verify the superuser was created.
      User.get(User.username == 'cooluser')

      # Verify the superuser was placed into the config.
      result = self.getJsonResponse(SuperUserConfig)
      self.assertEquals(['cooluser'], result['config']['SUPER_USERS'])


class TestSuperUserConfigValidate(ApiTestCase):
  def test_nonsuperuser_noconfig(self):
    with FreshConfigProvider():
      result = self.postJsonResponse(SuperUserConfigValidate, params=dict(service='someservice'),
                                                              data=dict(config={}))

      self.assertFalse(result['status'])


  def test_nonsuperuser_config(self):
    with FreshConfigProvider():
      # The validate config call works if there is no config.yaml OR the user is a superuser.
      # Add a config, and verify it breaks when unauthenticated.
      json = self.putJsonResponse(SuperUserConfig, data=dict(config={}, hostname='foobar'))
      self.assertTrue(json['exists'])


      result = self.postJsonResponse(SuperUserConfigValidate, params=dict(service='someservice'),
                                                              data=dict(config={}))

      self.assertFalse(result['status'])


class TestSuperUserConfig(ApiTestCase):
  def test_get_superuser(self):
    with FreshConfigProvider():
      json = self.getJsonResponse(SuperUserConfig)

      # Note: We expect the config to be none because a config.yaml should never be checked into
      # the directory.
      self.assertIsNone(json['config'])

  def test_put(self):
    with FreshConfigProvider() as config:
      json = self.putJsonResponse(SuperUserConfig, data=dict(config={}, hostname='foobar'))
      self.assertTrue(json['exists'])

      # Verify the config file exists.
      self.assertTrue(config.config_exists())

      # This should succeed.
      json = self.putJsonResponse(SuperUserConfig, data=dict(config={}, hostname='barbaz'))
      self.assertTrue(json['exists'])

      json = self.getJsonResponse(SuperUserConfig)
      self.assertIsNotNone(json['config'])


if __name__ == '__main__':
  unittest.main()