#!/usr/bin/env python3
# Copyright 2021 Canonical Ltd.
#
# 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.
#
# For those usages not covered by the Apache License, Version 2.0 please
# contact: legal@canonical.com
#
# To get in touch with the maintainers, please contact:
# osm-charmers@lists.launchpad.net
##

import sys
from typing import NoReturn
import unittest


from charm import KafkaExporterCharm
from ops.model import ActiveStatus, BlockedStatus
from ops.testing import Harness


class TestCharm(unittest.TestCase):
    """Kafka Exporter Charm unit tests."""

    def setUp(self) -> NoReturn:
        """Test setup"""
        self.image_info = sys.modules["oci_image"].OCIImageResource().fetch()
        self.harness = Harness(KafkaExporterCharm)
        self.harness.set_leader(is_leader=True)
        self.harness.begin()
        self.config = {
            "ingress_whitelist_source_range": "",
            "tls_secret_name": "",
            "site_url": "https://kafka-exporter.192.168.100.100.nip.io",
            "cluster_issuer": "vault-issuer",
        }
        self.harness.update_config(self.config)

    def test_config_changed_no_relations(
        self,
    ) -> NoReturn:
        """Test ingress resources without HTTP."""

        self.harness.charm.on.config_changed.emit()

        # Assertions
        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
        print(self.harness.charm.unit.status.message)
        self.assertTrue(
            all(
                relation in self.harness.charm.unit.status.message
                for relation in ["kafka"]
            )
        )

    def test_config_changed_non_leader(
        self,
    ) -> NoReturn:
        """Test ingress resources without HTTP."""
        self.harness.set_leader(is_leader=False)
        self.harness.charm.on.config_changed.emit()

        # Assertions
        self.assertIsInstance(self.harness.charm.unit.status, ActiveStatus)

    def test_with_relations(
        self,
    ) -> NoReturn:
        "Test with relations"
        self.initialize_kafka_relation()

        # Verifying status
        self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)

    def initialize_kafka_relation(self):
        kafka_relation_id = self.harness.add_relation("kafka", "kafka")
        self.harness.add_relation_unit(kafka_relation_id, "kafka/0")
        self.harness.update_relation_data(
            kafka_relation_id, "kafka/0", {"host": "kafka", "port": 9092}
        )


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


# class TestCharm(unittest.TestCase):
#     """Kafka Exporter Charm unit tests."""
#
#     def setUp(self) -> NoReturn:
#         """Test setup"""
#         self.harness = Harness(KafkaExporterCharm)
#         self.harness.set_leader(is_leader=True)
#         self.harness.begin()
#
#     def test_on_start_without_relations(self) -> NoReturn:
#         """Test installation without any relation."""
#         self.harness.charm.on.start.emit()
#
#         # Verifying status
#         self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
#
#         # Verifying status message
#         self.assertGreater(len(self.harness.charm.unit.status.message), 0)
#         self.assertTrue(
#             self.harness.charm.unit.status.message.startswith("Waiting for ")
#         )
#         self.assertIn("kafka", self.harness.charm.unit.status.message)
#         self.assertTrue(self.harness.charm.unit.status.message.endswith(" relation"))
#
#     def test_on_start_with_relations_without_http(self) -> NoReturn:
#         """Test deployment."""
#         expected_result = {
#             "version": 3,
#             "containers": [
#                 {
#                     "name": "kafka-exporter",
#                     "imageDetails": self.harness.charm.image.fetch(),
#                     "imagePullPolicy": "Always",
#                     "ports": [
#                         {
#                             "name": "kafka-exporter",
#                             "containerPort": 9308,
#                             "protocol": "TCP",
#                         }
#                     ],
#                     "envConfig": {},
#                     "command": ["kafka_exporter", "--kafka.server=kafka:9090"],
#                     "kubernetes": {
#                         "readinessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 10,
#                             "periodSeconds": 10,
#                             "timeoutSeconds": 5,
#                             "successThreshold": 1,
#                             "failureThreshold": 3,
#                         },
#                         "livenessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 60,
#                             "timeoutSeconds": 30,
#                             "failureThreshold": 10,
#                         },
#                     },
#                 },
#             ],
#             "kubernetesResources": {"ingressResources": []},
#         }
#
#         self.harness.charm.on.start.emit()
#
#         # Initializing the kafka relation
#         relation_id = self.harness.add_relation("kafka", "kafka")
#         self.harness.add_relation_unit(relation_id, "kafka/0")
#         self.harness.update_relation_data(
#             relation_id,
#             "kafka/0",
#             {
#                 "host": "kafka",
#                 "port": "9090",
#             },
#         )
#
#         # Verifying status
#         self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
#
#         pod_spec, _ = self.harness.get_pod_spec()
#
#         self.assertDictEqual(expected_result, pod_spec)
#
#     def test_ingress_resources_with_http(self) -> NoReturn:
#         """Test ingress resources with HTTP."""
#         expected_result = {
#             "version": 3,
#             "containers": [
#                 {
#                     "name": "kafka-exporter",
#                     "imageDetails": self.harness.charm.image.fetch(),
#                     "imagePullPolicy": "Always",
#                     "ports": [
#                         {
#                             "name": "kafka-exporter",
#                             "containerPort": 9308,
#                             "protocol": "TCP",
#                         }
#                     ],
#                     "envConfig": {},
#                     "command": ["kafka_exporter", "--kafka.server=kafka:9090"],
#                     "kubernetes": {
#                         "readinessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 10,
#                             "periodSeconds": 10,
#                             "timeoutSeconds": 5,
#                             "successThreshold": 1,
#                             "failureThreshold": 3,
#                         },
#                         "livenessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 60,
#                             "timeoutSeconds": 30,
#                             "failureThreshold": 10,
#                         },
#                     },
#                 },
#             ],
#             "kubernetesResources": {
#                 "ingressResources": [
#                     {
#                         "name": "kafka-exporter-ingress",
#                         "annotations": {
#                             "nginx.ingress.kubernetes.io/ssl-redirect": "false",
#                         },
#                         "spec": {
#                             "rules": [
#                                 {
#                                     "host": "kafka-exporter",
#                                     "http": {
#                                         "paths": [
#                                             {
#                                                 "path": "/",
#                                                 "backend": {
#                                                     "serviceName": "kafka-exporter",
#                                                     "servicePort": 9308,
#                                                 },
#                                             }
#                                         ]
#                                     },
#                                 }
#                             ]
#                         },
#                     }
#                 ],
#             },
#         }
#
#         self.harness.charm.on.start.emit()
#
#         # Initializing the kafka relation
#         relation_id = self.harness.add_relation("kafka", "kafka")
#         self.harness.add_relation_unit(relation_id, "kafka/0")
#         self.harness.update_relation_data(
#             relation_id,
#             "kafka/0",
#             {
#                 "host": "kafka",
#                 "port": "9090",
#             },
#         )
#
#         self.harness.update_config({"site_url": "http://kafka-exporter"})
#
#         pod_spec, _ = self.harness.get_pod_spec()
#
#         self.assertDictEqual(expected_result, pod_spec)
#
#     def test_ingress_resources_with_https(self) -> NoReturn:
#         """Test ingress resources with HTTPS."""
#         expected_result = {
#             "version": 3,
#             "containers": [
#                 {
#                     "name": "kafka-exporter",
#                     "imageDetails": self.harness.charm.image.fetch(),
#                     "imagePullPolicy": "Always",
#                     "ports": [
#                         {
#                             "name": "kafka-exporter",
#                             "containerPort": 9308,
#                             "protocol": "TCP",
#                         }
#                     ],
#                     "envConfig": {},
#                     "command": ["kafka_exporter", "--kafka.server=kafka:9090"],
#                     "kubernetes": {
#                         "readinessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 10,
#                             "periodSeconds": 10,
#                             "timeoutSeconds": 5,
#                             "successThreshold": 1,
#                             "failureThreshold": 3,
#                         },
#                         "livenessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 60,
#                             "timeoutSeconds": 30,
#                             "failureThreshold": 10,
#                         },
#                     },
#                 },
#             ],
#             "kubernetesResources": {
#                 "ingressResources": [
#                     {
#                         "name": "kafka-exporter-ingress",
#                         "annotations": {},
#                         "spec": {
#                             "rules": [
#                                 {
#                                     "host": "kafka-exporter",
#                                     "http": {
#                                         "paths": [
#                                             {
#                                                 "path": "/",
#                                                 "backend": {
#                                                     "serviceName": "kafka-exporter",
#                                                     "servicePort": 9308,
#                                                 },
#                                             }
#                                         ]
#                                     },
#                                 }
#                             ],
#                             "tls": [
#                                 {
#                                     "hosts": ["kafka-exporter"],
#                                     "secretName": "kafka-exporter",
#                                 }
#                             ],
#                         },
#                     }
#                 ],
#             },
#         }
#
#         self.harness.charm.on.start.emit()
#
#         # Initializing the kafka relation
#         relation_id = self.harness.add_relation("kafka", "kafka")
#         self.harness.add_relation_unit(relation_id, "kafka/0")
#         self.harness.update_relation_data(
#             relation_id,
#             "kafka/0",
#             {
#                 "host": "kafka",
#                 "port": "9090",
#             },
#         )
#
#         self.harness.update_config(
#             {
#                 "site_url": "https://kafka-exporter",
#                 "tls_secret_name": "kafka-exporter",
#             }
#         )
#
#         pod_spec, _ = self.harness.get_pod_spec()
#
#         self.assertDictEqual(expected_result, pod_spec)
#
#     def test_ingress_resources_with_https_and_ingress_whitelist(self) -> NoReturn:
#         """Test ingress resources with HTTPS and ingress whitelist."""
#         expected_result = {
#             "version": 3,
#             "containers": [
#                 {
#                     "name": "kafka-exporter",
#                     "imageDetails": self.harness.charm.image.fetch(),
#                     "imagePullPolicy": "Always",
#                     "ports": [
#                         {
#                             "name": "kafka-exporter",
#                             "containerPort": 9308,
#                             "protocol": "TCP",
#                         }
#                     ],
#                     "envConfig": {},
#                     "command": ["kafka_exporter", "--kafka.server=kafka:9090"],
#                     "kubernetes": {
#                         "readinessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 10,
#                             "periodSeconds": 10,
#                             "timeoutSeconds": 5,
#                             "successThreshold": 1,
#                             "failureThreshold": 3,
#                         },
#                         "livenessProbe": {
#                             "httpGet": {
#                                 "path": "/api/health",
#                                 "port": 9308,
#                             },
#                             "initialDelaySeconds": 60,
#                             "timeoutSeconds": 30,
#                             "failureThreshold": 10,
#                         },
#                     },
#                 },
#             ],
#             "kubernetesResources": {
#                 "ingressResources": [
#                     {
#                         "name": "kafka-exporter-ingress",
#                         "annotations": {
#                             "nginx.ingress.kubernetes.io/whitelist-source-range": "0.0.0.0/0",
#                         },
#                         "spec": {
#                             "rules": [
#                                 {
#                                     "host": "kafka-exporter",
#                                     "http": {
#                                         "paths": [
#                                             {
#                                                 "path": "/",
#                                                 "backend": {
#                                                     "serviceName": "kafka-exporter",
#                                                     "servicePort": 9308,
#                                                 },
#                                             }
#                                         ]
#                                     },
#                                 }
#                             ],
#                             "tls": [
#                                 {
#                                     "hosts": ["kafka-exporter"],
#                                     "secretName": "kafka-exporter",
#                                 }
#                             ],
#                         },
#                     }
#                 ],
#             },
#         }
#
#         self.harness.charm.on.start.emit()
#
#         # Initializing the kafka relation
#         relation_id = self.harness.add_relation("kafka", "kafka")
#         self.harness.add_relation_unit(relation_id, "kafka/0")
#         self.harness.update_relation_data(
#             relation_id,
#             "kafka/0",
#             {
#                 "host": "kafka",
#                 "port": "9090",
#             },
#         )
#
#         self.harness.update_config(
#             {
#                 "site_url": "https://kafka-exporter",
#                 "tls_secret_name": "kafka-exporter",
#                 "ingress_whitelist_source_range": "0.0.0.0/0",
#             }
#         )
#
#         pod_spec, _ = self.harness.get_pod_spec()
#
#         self.assertDictEqual(expected_result, pod_spec)
#
#     def test_on_kafka_unit_relation_changed(self) -> NoReturn:
#         """Test to see if kafka relation is updated."""
#         self.harness.charm.on.start.emit()
#
#         relation_id = self.harness.add_relation("kafka", "kafka")
#         self.harness.add_relation_unit(relation_id, "kafka/0")
#         self.harness.update_relation_data(
#             relation_id,
#             "kafka/0",
#             {
#                 "host": "kafka",
#                 "port": "9090",
#             },
#         )
#
#         # Verifying status
#         self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
#
#     def test_publish_target_info(self) -> NoReturn:
#         """Test to see if target relation is updated."""
#         expected_result = {
#             "hostname": "kafka-exporter",
#             "port": "9308",
#             "metrics_path": "/metrics",
#             "scrape_interval": "30s",
#             "scrape_timeout": "15s",
#         }
#
#         self.harness.charm.on.start.emit()
#
#         relation_id = self.harness.add_relation("prometheus-scrape", "prometheus")
#         self.harness.add_relation_unit(relation_id, "prometheus/0")
#         relation_data = self.harness.get_relation_data(relation_id, "kafka-exporter/0")
#
#         self.assertDictEqual(expected_result, relation_data)
#
#     def test_publish_target_info_with_site_url(self) -> NoReturn:
#         """Test to see if target relation is updated."""
#         expected_result = {
#             "hostname": "kafka-exporter-osm",
#             "port": "80",
#             "metrics_path": "/metrics",
#             "scrape_interval": "30s",
#             "scrape_timeout": "15s",
#         }
#
#         self.harness.charm.on.start.emit()
#
#         self.harness.update_config({"site_url": "http://kafka-exporter-osm"})
#
#         relation_id = self.harness.add_relation("prometheus-scrape", "prometheus")
#         self.harness.add_relation_unit(relation_id, "prometheus/0")
#         relation_data = self.harness.get_relation_data(relation_id, "kafka-exporter/0")
#
#         self.assertDictEqual(expected_result, relation_data)
#
#     def test_publish_dashboard_info(self) -> NoReturn:
#         """Test to see if dashboard relation is updated."""
#         self.harness.charm.on.start.emit()
#
#         relation_id = self.harness.add_relation("grafana-dashboard", "grafana")
#         self.harness.add_relation_unit(relation_id, "grafana/0")
#         relation_data = self.harness.get_relation_data(relation_id, "kafka-exporter/0")
#
#         self.assertTrue("dashboard" in relation_data)
#         self.assertTrue(len(relation_data["dashboard"]) > 0)
#
#
# if __name__ == "__main__":
#     unittest.main()
