import pytest
import re

from httmock import urlmatch, HTTMock, response

from config_app.config_util.k8saccessor import KubernetesAccessorSingleton
from config_app.config_util.k8sconfig import KubernetesConfig

@pytest.mark.parametrize('kube_config, expected_api, expected_query', [
  ({'api_host':'www.customhost.com'},
   '/apis/extensions/v1beta1/namespaces/quay-enterprise/deployments', 'labelSelector=quay-enterprise-component%3Dapp'),

  ({'api_host':'www.customhost.com', 'qe_deployment_selector':'custom-selector'},
   '/apis/extensions/v1beta1/namespaces/quay-enterprise/deployments', 'labelSelector=quay-enterprise-component%3Dcustom-selector'),

  ({'api_host':'www.customhost.com', 'qe_namespace':'custom-namespace'},
   '/apis/extensions/v1beta1/namespaces/custom-namespace/deployments', 'labelSelector=quay-enterprise-component%3Dapp'),

  ({'api_host':'www.customhost.com', 'qe_namespace':'custom-namespace', 'qe_deployment_selector':'custom-selector'},
   '/apis/extensions/v1beta1/namespaces/custom-namespace/deployments', 'labelSelector=quay-enterprise-component%3Dcustom-selector'),
])
def test_get_qe_deployments(kube_config, expected_api, expected_query):
  config = KubernetesConfig(**kube_config)
  url_hit = [False]

  @urlmatch(netloc=r'www.customhost.com')
  def handler(request, _):
    assert request.path == expected_api
    assert request.query == expected_query
    url_hit[0] = True
    return response(200, '{}')

  with HTTMock(handler):
    KubernetesAccessorSingleton._instance = None
    assert KubernetesAccessorSingleton.get_instance(config).get_qe_deployments() is not None

  assert url_hit[0]

@pytest.mark.parametrize('kube_config, deployment_names, expected_api_hits', [
  ({'api_host':'www.customhost.com'}, [], []),
  ({'api_host':'www.customhost.com'}, ['myDeployment'], ['/apis/extensions/v1beta1/namespaces/quay-enterprise/deployments/myDeployment']),
  ({'api_host':'www.customhost.com', 'qe_namespace':'custom-namespace'},
   ['myDeployment', 'otherDeployment'],
   ['/apis/extensions/v1beta1/namespaces/custom-namespace/deployments/myDeployment', '/apis/extensions/v1beta1/namespaces/custom-namespace/deployments/otherDeployment']),
])
def test_cycle_qe_deployments(kube_config, deployment_names, expected_api_hits):
  KubernetesAccessorSingleton._instance = None

  config = KubernetesConfig(**kube_config)
  url_hit = [False] * len(expected_api_hits)
  i = [0]

  @urlmatch(netloc=r'www.customhost.com', method='PATCH')
  def handler(request, _):
    assert request.path == expected_api_hits[i[0]]
    url_hit[i[0]] = True
    i[0] += 1
    return response(200, '{}')

  with HTTMock(handler):
    KubernetesAccessorSingleton.get_instance(config).cycle_qe_deployments(deployment_names)

  assert all(url_hit)