import mock
import unittest
import yaml

from armada.handlers.armada import Armada
from armada.handlers.manifest import Manifest


class ArmadaTestCase(unittest.TestCase):
    test_yaml = """
    ---
    schema: armada/Manifest/v1
    metadata:
      schema: metadata/Document/v1
      name: example-manifest
    data:
      release_prefix: armada
      chart_groups:
        - example-group
    ---
    schema: armada/ChartGroup/v1
    metadata:
      schema: metadata/Document/v1
      name: example-group
    data:
      description: this is a test
      sequenced: False
      chart_group:
        - example-chart-1
        - example-chart-2
    ---
    schema: armada/Chart/v1
    metadata:
      schema: metadata/Document/v1
      name: example-chart-2
    data:
        name: test_chart_2
        release_name: test_chart_2
        namespace: test
        values: {}
        source:
          type: local
          location: /tmp/dummy/armada
          subpath: chart_2
          reference: null
        dependencies: []
        timeout: 5
    ---
    schema: armada/Chart/v1
    metadata:
      schema: metadata/Document/v1
      name: example-chart-1
    data:
        name: test_chart_1
        release_name: test_chart_1
        namespace: test
        values: {}
        source:
          type: git
          location: git://github.com/dummy/armada
          subpath: chart_1
          reference: master
        dependencies: []
        timeout: 50
    """

    @unittest.skip('temp')
    @mock.patch('armada.handlers.armada.git')
    @mock.patch('armada.handlers.armada.lint')
    @mock.patch('armada.handlers.armada.Tiller')
    def test_pre_flight_ops(self, mock_tiller, mock_lint, mock_git):
        '''Test pre-flight checks and operations'''
        armada = Armada('')
        armada.tiller = mock_tiller
        armada.documents = yaml.safe_load_all(self.test_yaml)
        armada.config = Manifest(armada.documents).get_manifest()

        CHART_SOURCES = [('git://github.com/dummy/armada', 'chart_1'),
                         ('/tmp/dummy/armada', 'chart_2')]

        # mock methods called by pre_flight_ops()
        mock_tiller.tiller_status.return_value = True
        mock_lint.valid_manifest.return_value = True
        mock_git.git_clone.return_value = CHART_SOURCES[0][0]

        armada.pre_flight_ops()

        mock_git.git_clone.assert_called_once_with(CHART_SOURCES[0][0],
                                                   'master')
        for group in armada.config.get('armada').get('charts'):
            for counter, chart in enumerate(group.get('chart_group')):
                self.assertEqual(
                    chart.get('chart').get('source_dir')[0],
                    CHART_SOURCES[counter][0])
                self.assertEqual(
                    chart.get('chart').get('source_dir')[1],
                    CHART_SOURCES[counter][1])

    @unittest.skip('temp')
    @mock.patch('armada.handlers.armada.git')
    @mock.patch('armada.handlers.armada.lint')
    @mock.patch('armada.handlers.armada.Tiller')
    def test_post_flight_ops(self, mock_tiller, mock_lint, mock_git):
        '''Test post-flight operations'''
        armada = Armada('')
        armada.tiller = mock_tiller
        tmp_doc = yaml.safe_load_all(self.test_yaml)
        armada.config = Manifest(tmp_doc).get_manifest()

        CHART_SOURCES = [('git://github.com/dummy/armada', 'chart_1'),
                         ('/tmp/dummy/armada', 'chart_2')]

        # mock methods called by pre_flight_ops()
        mock_tiller.tiller_status.return_value = True
        mock_lint.valid_manifest.return_value = True
        mock_git.git_clone.return_value = CHART_SOURCES[0][0]
        armada.pre_flight_ops()

        armada.post_flight_ops()

        for group in yaml.load(self.test_yaml).get('armada').get('charts'):
            for counter, chart in enumerate(group.get('chart_group')):
                if chart.get('chart').get('source').get('type') == 'git':
                    mock_git.source_cleanup \
                            .assert_called_with(CHART_SOURCES[counter][0])

    @unittest.skip('temp')
    @mock.patch.object(Armada, 'post_flight_ops')
    @mock.patch.object(Armada, 'pre_flight_ops')
    @mock.patch('armada.handlers.armada.ChartBuilder')
    @mock.patch('armada.handlers.armada.Tiller')
    def test_install(self, mock_tiller, mock_chartbuilder, mock_pre_flight,
                     mock_post_flight):
        '''Test install functionality from the sync() method'''

        # instantiate Armada and Tiller objects
        armada = Armada('', wait=True, timeout=1000)
        armada.tiller = mock_tiller
        tmp_doc = yaml.safe_load_all(self.test_yaml)
        armada.config = Manifest(tmp_doc).get_manifest()

        charts = armada.config['armada']['charts'][0]['chart_group']
        chart_1 = charts[0]['chart']
        chart_2 = charts[1]['chart']

        # mock irrelevant methods called by armada.sync()
        mock_tiller.list_charts.return_value = []
        mock_chartbuilder.get_source_path.return_value = None
        mock_chartbuilder.get_helm_chart.return_value = None

        armada.sync()

        # check params that should be passed to tiller.install_release()
        method_calls = [
            mock.call(
                mock_chartbuilder().get_helm_chart(),
                "{}-{}".format(armada.config['armada']['release_prefix'],
                               chart_1['release_name']),
                chart_1['namespace'],
                dry_run=armada.dry_run,
                values=yaml.safe_dump(chart_1['values']),
                wait=armada.wait,
                timeout=1000),
            mock.call(
                mock_chartbuilder().get_helm_chart(),
                "{}-{}".format(armada.config['armada']['release_prefix'],
                               chart_2['release_name']),
                chart_2['namespace'],
                dry_run=armada.dry_run,
                values=yaml.safe_dump(chart_2['values']),
                wait=armada.wait,
                timeout=1000)
        ]
        mock_tiller.install_release.assert_has_calls(method_calls)

    @unittest.skip('skipping update')
    def test_upgrade(self):
        '''Test upgrade functionality from the sync() method'''
        # TODO