# Copyright The OpenTelemetry 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.
import unittest
from unittest.mock import patch

# pylint: disable=no-name-in-module
from opentelemetry.resource.detector.azure.app_service import (
    AzureAppServiceResourceDetector,
)

TEST_WEBSITE_SITE_NAME = "TEST_WEBSITE_SITE_NAME"
TEST_REGION_NAME = "TEST_REGION_NAME"
TEST_WEBSITE_SLOT_NAME = "TEST_WEBSITE_SLOT_NAME"
TEST_WEBSITE_HOSTNAME = "TEST_WEBSITE_HOSTNAME"
TEST_WEBSITE_INSTANCE_ID = "TEST_WEBSITE_INSTANCE_ID"
TEST_WEBSITE_HOME_STAMPNAME = "TEST_WEBSITE_HOME_STAMPNAME"

TEST_WEBSITE_RESOURCE_GROUP = "TEST_WEBSITE_RESOURCE_GROUP"
TEST_WEBSITE_OWNER_NAME = "TEST_WEBSITE_OWNER_NAME"


class TestAzureAppServiceResourceDetector(unittest.TestCase):
    @patch.dict(
        "os.environ",
        {
            "WEBSITE_SITE_NAME": TEST_WEBSITE_SITE_NAME,
            "REGION_NAME": TEST_REGION_NAME,
            "WEBSITE_SLOT_NAME": TEST_WEBSITE_SLOT_NAME,
            "WEBSITE_HOSTNAME": TEST_WEBSITE_HOSTNAME,
            "WEBSITE_INSTANCE_ID": TEST_WEBSITE_INSTANCE_ID,
            "WEBSITE_HOME_STAMPNAME": TEST_WEBSITE_HOME_STAMPNAME,
            "WEBSITE_RESOURCE_GROUP": TEST_WEBSITE_RESOURCE_GROUP,
            "WEBSITE_OWNER_NAME": TEST_WEBSITE_OWNER_NAME,
        },
        clear=True,
    )
    def test_on_app_service(self):
        resource = AzureAppServiceResourceDetector().detect()
        attributes = resource.attributes
        self.assertEqual(attributes["service.name"], TEST_WEBSITE_SITE_NAME)
        self.assertEqual(attributes["cloud.provider"], "azure")
        self.assertEqual(attributes["cloud.platform"], "azure_app_service")

        self.assertEqual(
            attributes["cloud.resource_id"],
            f"/subscriptions/{TEST_WEBSITE_OWNER_NAME}/resourceGroups/{TEST_WEBSITE_RESOURCE_GROUP}/providers/Microsoft.Web/sites/{TEST_WEBSITE_SITE_NAME}",
        )

        self.assertEqual(attributes["cloud.region"], TEST_REGION_NAME)
        self.assertEqual(
            attributes["deployment.environment"], TEST_WEBSITE_SLOT_NAME
        )
        self.assertEqual(attributes["host.id"], TEST_WEBSITE_HOSTNAME)
        self.assertEqual(
            attributes["service.instance.id"], TEST_WEBSITE_INSTANCE_ID
        )
        self.assertEqual(
            attributes["azure.app.service.stamp"], TEST_WEBSITE_HOME_STAMPNAME
        )
    
    @patch.dict(
        "os.environ",
        {
            "FUNCTIONS_WORKER_RUNTIME": "1",
            "WEBSITE_SITE_NAME": TEST_WEBSITE_SITE_NAME,
            "REGION_NAME": TEST_REGION_NAME,
            "WEBSITE_SLOT_NAME": TEST_WEBSITE_SLOT_NAME,
            "WEBSITE_HOSTNAME": TEST_WEBSITE_HOSTNAME,
            "WEBSITE_INSTANCE_ID": TEST_WEBSITE_INSTANCE_ID,
            "WEBSITE_HOME_STAMPNAME": TEST_WEBSITE_HOME_STAMPNAME,
            "WEBSITE_RESOURCE_GROUP": TEST_WEBSITE_RESOURCE_GROUP,
            "WEBSITE_OWNER_NAME": TEST_WEBSITE_OWNER_NAME,
        },
        clear=True,
    )
    def test_on_app_service_with_functions(self):
        resource = AzureAppServiceResourceDetector().detect()
        attributes = resource.attributes
        self.assertIsNone(attributes.get("service.name"))
        self.assertEqual(attributes["cloud.provider"], "azure")
        self.assertIsNone(attributes.get("cloud.platform"))

        self.assertEqual(
            attributes["cloud.resource_id"],
            f"/subscriptions/{TEST_WEBSITE_OWNER_NAME}/resourceGroups/{TEST_WEBSITE_RESOURCE_GROUP}/providers/Microsoft.Web/sites/{TEST_WEBSITE_SITE_NAME}",
        )

        self.assertEqual(attributes["cloud.region"], TEST_REGION_NAME)
        self.assertEqual(
            attributes["deployment.environment"], TEST_WEBSITE_SLOT_NAME
        )
        self.assertEqual(attributes["host.id"], TEST_WEBSITE_HOSTNAME)
        self.assertEqual(
            attributes["service.instance.id"], TEST_WEBSITE_INSTANCE_ID
        )
        self.assertEqual(
            attributes["azure.app.service.stamp"], TEST_WEBSITE_HOME_STAMPNAME
        )

    @patch.dict(
        "os.environ",
        {
            "WEBSITE_SITE_NAME": TEST_WEBSITE_SITE_NAME,
            "REGION_NAME": TEST_REGION_NAME,
            "WEBSITE_SLOT_NAME": TEST_WEBSITE_SLOT_NAME,
            "WEBSITE_HOSTNAME": TEST_WEBSITE_HOSTNAME,
            "WEBSITE_INSTANCE_ID": TEST_WEBSITE_INSTANCE_ID,
            "WEBSITE_HOME_STAMPNAME": TEST_WEBSITE_HOME_STAMPNAME,
            "WEBSITE_OWNER_NAME": TEST_WEBSITE_OWNER_NAME,
        },
        clear=True,
    )
    def test_on_app_service_no_resource_group(self):
        resource = AzureAppServiceResourceDetector().detect()
        attributes = resource.attributes
        self.assertEqual(attributes["service.name"], TEST_WEBSITE_SITE_NAME)
        self.assertEqual(attributes["cloud.provider"], "azure")
        self.assertEqual(attributes["cloud.platform"], "azure_app_service")

        self.assertTrue("cloud.resource_id" not in attributes)

        self.assertEqual(attributes["cloud.region"], TEST_REGION_NAME)
        self.assertEqual(
            attributes["deployment.environment"], TEST_WEBSITE_SLOT_NAME
        )
        self.assertEqual(attributes["host.id"], TEST_WEBSITE_HOSTNAME)
        self.assertEqual(
            attributes["service.instance.id"], TEST_WEBSITE_INSTANCE_ID
        )
        self.assertEqual(
            attributes["azure.app.service.stamp"], TEST_WEBSITE_HOME_STAMPNAME
        )

    @patch.dict(
        "os.environ",
        {
            "WEBSITE_SITE_NAME": TEST_WEBSITE_SITE_NAME,
            "REGION_NAME": TEST_REGION_NAME,
            "WEBSITE_SLOT_NAME": TEST_WEBSITE_SLOT_NAME,
            "WEBSITE_HOSTNAME": TEST_WEBSITE_HOSTNAME,
            "WEBSITE_INSTANCE_ID": TEST_WEBSITE_INSTANCE_ID,
            "WEBSITE_HOME_STAMPNAME": TEST_WEBSITE_HOME_STAMPNAME,
            "WEBSITE_OWNER_NAME": TEST_WEBSITE_OWNER_NAME,
        },
        clear=True,
    )
    def test_on_app_service_no_owner(self):
        resource = AzureAppServiceResourceDetector().detect()
        attributes = resource.attributes
        self.assertEqual(attributes["service.name"], TEST_WEBSITE_SITE_NAME)
        self.assertEqual(attributes["cloud.provider"], "azure")
        self.assertEqual(attributes["cloud.platform"], "azure_app_service")

        self.assertTrue("cloud.resource_id" not in attributes)

        self.assertEqual(attributes["cloud.region"], TEST_REGION_NAME)
        self.assertEqual(
            attributes["deployment.environment"], TEST_WEBSITE_SLOT_NAME
        )
        self.assertEqual(attributes["host.id"], TEST_WEBSITE_HOSTNAME)
        self.assertEqual(
            attributes["service.instance.id"], TEST_WEBSITE_INSTANCE_ID
        )
        self.assertEqual(
            attributes["azure.app.service.stamp"], TEST_WEBSITE_HOME_STAMPNAME
        )

    @patch.dict(
        "os.environ",
        {
            "REGION_NAME": TEST_REGION_NAME,
            "WEBSITE_SLOT_NAME": TEST_WEBSITE_SLOT_NAME,
            "WEBSITE_HOSTNAME": TEST_WEBSITE_HOSTNAME,
            "WEBSITE_INSTANCE_ID": TEST_WEBSITE_INSTANCE_ID,
            "WEBSITE_HOME_STAMPNAME": TEST_WEBSITE_HOME_STAMPNAME,
            "WEBSITE_OWNER_NAME": TEST_WEBSITE_OWNER_NAME,
        },
        clear=True,
    )
    def test_off_app_service(self):
        resource = AzureAppServiceResourceDetector().detect()
        self.assertEqual(resource.attributes, {})