# Copyright 2019 The Kubeflow Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from kubernetes import client as k8s_client
import kfp
from kfp.dsl import PipelineParam, VolumeOp, VolumeSnapshotOp
import unittest


class TestVolumeSnapshotOp(unittest.TestCase):

    def test_basic(self):
        """Test basic usage."""

        def my_pipeline(param1, param2):
            vol = VolumeOp(
                name="myvol_creation",
                resource_name="myvol",
                size="1Gi",
            )
            snap1 = VolumeSnapshotOp(
                name="mysnap_creation",
                resource_name=param1,
                volume=vol.volume,
            )
            snap2 = VolumeSnapshotOp(
                name="mysnap_creation",
                resource_name="mysnap",
                pvc=param2,
                attribute_outputs={"size": "test"})
            snap3 = VolumeSnapshotOp(
                name="mysnap_creation2",
                resource_name="mysnap2",
                pvc=param2,
                api_version="snapshot.storage.k8s.io/v1beta1",
                attribute_outputs={"size": "test"})

            self.assertEqual(
                sorted([x.name for x in snap1.inputs]), ["name", "param1"])
            self.assertEqual(sorted([x.name for x in snap2.inputs]), ["param2"])
            expected_attribute_outputs_1 = {
                "manifest": "{}",
                "name": "{.metadata.name}",
                "size": "{.status.restoreSize}"
            }
            self.assertEqual(snap1.attribute_outputs,
                             expected_attribute_outputs_1)
            expected_attribute_outputs_2 = {
                "manifest": "{}",
                "name": "{.metadata.name}",
                "size": "test"
            }
            self.assertEqual(snap2.attribute_outputs,
                             expected_attribute_outputs_2)
            expected_outputs_1 = {
                "manifest": PipelineParam(name="manifest", op_name=snap1.name),
                "name": PipelineParam(name="name", op_name=snap1.name),
                "size": PipelineParam(name="name", op_name=snap1.name),
            }
            self.assertEqual(snap1.outputs, expected_outputs_1)
            expected_outputs_2 = {
                "manifest": PipelineParam(name="manifest", op_name=snap2.name),
                "name": PipelineParam(name="name", op_name=snap2.name),
                "size": PipelineParam(name="name", op_name=snap2.name),
            }
            self.assertEqual(snap2.outputs, expected_outputs_2)
            self.assertEqual(snap1.output,
                             PipelineParam(name="name", op_name=snap1.name))
            self.assertEqual(snap2.output,
                             PipelineParam(name="size", op_name=snap2.name))
            self.assertEqual(snap1.dependent_names, [])
            self.assertEqual(snap2.dependent_names, [])
            expected_snapshot_1 = k8s_client.V1TypedLocalObjectReference(
                api_group="snapshot.storage.k8s.io",
                kind="VolumeSnapshot",
                name=PipelineParam(name="name", op_name=vol.name))
            self.assertEqual(snap1.snapshot, expected_snapshot_1)
            expected_snapshot_2 = k8s_client.V1TypedLocalObjectReference(
                api_group="snapshot.storage.k8s.io",
                kind="VolumeSnapshot",
                name=PipelineParam(name="param1"))
            assert (snap2.k8s_resource['apiVersion'] ==
                    "snapshot.storage.k8s.io/v1alpha1")
            self.assertEqual(snap2.snapshot, expected_snapshot_2)

            expected_snapshot_3 = k8s_client.V1TypedLocalObjectReference(
                api_group="snapshot.storage.k8s.io",
                kind="VolumeSnapshot",
                name=PipelineParam(name="param1"))
            self.assertEqual(snap3.snapshot, expected_snapshot_3)
            assert (snap3.k8s_resource['apiVersion'] ==
                    "snapshot.storage.k8s.io/v1beta1")

        kfp.compiler.Compiler()._compile(my_pipeline)