import pytest
import flask

from flask_principal import Identity, Principal
from mock import Mock

from auth import permissions
from endpoints.v2.v2auth import _get_tuf_root
from test import testconfig
from util.security.registry_jwt import QUAY_TUF_ROOT, SIGNER_TUF_ROOT, DISABLED_TUF_ROOT



def admin_identity(namespace, reponame):
  identity = Identity('admin')
  identity.provides.add(permissions._RepositoryNeed(namespace, reponame, 'admin'))
  identity.provides.add(permissions._OrganizationRepoNeed(namespace, 'admin'))
  return identity


def write_identity(namespace, reponame):
  identity = Identity('writer')
  identity.provides.add(permissions._RepositoryNeed(namespace, reponame, 'write'))
  identity.provides.add(permissions._OrganizationRepoNeed(namespace, 'write'))
  return identity


def read_identity(namespace, reponame):
  identity = Identity('reader')
  identity.provides.add(permissions._RepositoryNeed(namespace, reponame, 'read'))
  identity.provides.add(permissions._OrganizationRepoNeed(namespace, 'read'))
  return identity


def app_with_principal():
  app = flask.Flask(__name__)
  app.config.from_object(testconfig.TestConfig())
  principal = Principal(app)
  return app, principal


@pytest.mark.parametrize('identity,expected', [
  (Identity('anon'), QUAY_TUF_ROOT),
  (read_identity("namespace", "repo"), QUAY_TUF_ROOT),
  (read_identity("different", "repo"), QUAY_TUF_ROOT),
  (admin_identity("different", "repo"), QUAY_TUF_ROOT),
  (write_identity("different", "repo"), QUAY_TUF_ROOT),
  (admin_identity("namespace", "repo"), SIGNER_TUF_ROOT),
  (write_identity("namespace", "repo"), SIGNER_TUF_ROOT),
])
def test_get_tuf_root(identity, expected):
  app, principal = app_with_principal()
  with app.test_request_context('/'):
    principal.set_identity(identity)
    actual = _get_tuf_root(Mock(), "namespace", "repo")
    assert actual == expected, "should be %s, but was %s" % (expected, actual)


@pytest.mark.parametrize('trust_enabled,tuf_root', [
  (True, QUAY_TUF_ROOT),
  (False, DISABLED_TUF_ROOT),
])
def test_trust_disabled(trust_enabled,tuf_root):
  app, principal = app_with_principal()
  with app.test_request_context('/'):
    principal.set_identity(read_identity("namespace", "repo"))
    actual = _get_tuf_root(Mock(trust_enabled=trust_enabled), "namespace", "repo")
    assert actual == tuf_root, "should be %s, but was %s" % (tuf_root, actual)