# Copyright (c) Ansible project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later

from __future__ import annotations

import json
import unittest
from unittest.mock import patch

import pytest
from ansible_collections.community.internal_test_tools.tests.unit.plugins.modules.utils import (
    AnsibleExitJson,
    AnsibleFailJson,
    ModuleTestCase,
    set_module_args,
)

from ansible_collections.community.general.plugins.modules import pagerduty_alert


class PagerDutyAlertsTest(unittest.TestCase):
    def _assert_incident_api(self, module, url, method, headers):
        self.assertTrue("https://api.pagerduty.com/incidents" in url, "url must contain REST API v2 network path")
        self.assertTrue("service_ids%5B%5D=service_id" in url, "url must contain service id to filter incidents")
        self.assertTrue("sort_by=incident_number%3Adesc" in url, "url should contain sorting parameter")
        self.assertTrue("time_zone=UTC" in url, "url should contain time zone parameter")
        return Response(), {"status": 200}

    def _assert_compatibility_header(self, module, url, method, headers):
        self.assertEqual(
            "application/vnd.pagerduty+json;version=2",
            headers.get("Accept"),
            "Accept:application/vnd.pagerduty+json;version=2 HTTP header not found",
        )
        return Response(), {"status": 200}

    def _assert_incident_key(self, module, url, method, headers):
        self.assertTrue("incident_key=incident_key_value" in url, "url must contain incident key")
        return Response(), {"status": 200}

    def test_incident_url(self):
        pagerduty_alert.check(
            None, "name", "state", "service_id", "integration_key", "api_key", http_call=self._assert_incident_api
        )

    def test_compatibility_header(self):
        pagerduty_alert.check(
            None,
            "name",
            "state",
            "service_id",
            "integration_key",
            "api_key",
            http_call=self._assert_compatibility_header,
        )

    def test_incident_key_in_url_when_it_is_given(self):
        pagerduty_alert.check(
            None,
            "name",
            "state",
            "service_id",
            "integration_key",
            "api_key",
            incident_key="incident_key_value",
            http_call=self._assert_incident_key,
        )


class Response:
    def read(self):
        return '{"incidents":[{"id": "incident_id", "status": "triggered"}]}'


class TestPagerDutyAlertModule(ModuleTestCase):
    def setUp(self):
        super().setUp()
        self.module = pagerduty_alert

    def tearDown(self):
        super().tearDown()

    @pytest.fixture
    def fetch_url_mock(self, mocker):
        return mocker.patch("ansible.module_utils.monitoring.pagerduty_change.fetch_url")

    def test_module_fail_when_required_args_missing(self):
        with self.assertRaises(AnsibleFailJson):
            with set_module_args({}):
                self.module.main()

    def test_ensure_alert_created_with_minimal_data(self):
        with set_module_args(
            {
                "state": "triggered",
                "api_version": "v2",
                "integration_key": "test",
                "source": "My Ansible Script",
                "desc": "Description for alert",
            }
        ):
            with patch.object(pagerduty_alert, "fetch_url") as fetch_url_mock:
                fetch_url_mock.return_value = (Response(), {"status": 202})
                with self.assertRaises(AnsibleExitJson):
                    self.module.main()

            assert fetch_url_mock.call_count == 1
            url = fetch_url_mock.call_args[0][1]
            json_data = fetch_url_mock.call_args[1]["data"]
            data = json.loads(json_data)

            assert url == "https://events.pagerduty.com/v2/enqueue"
            assert data["routing_key"] == "test"
            assert data["event_action"] == "trigger"
            assert data["payload"]["summary"] == "Description for alert"
            assert data["payload"]["source"] == "My Ansible Script"
            assert data["payload"]["severity"] == "critical"
            assert data["payload"]["timestamp"] is not None

    def test_ensure_alert_created_with_full_data(self):
        with set_module_args(
            {
                "api_version": "v2",
                "component": "mysql",
                "custom_details": {"environment": "production", "notes": "this is a test note"},
                "desc": "Description for alert",
                "incident_class": "ping failure",
                "integration_key": "test",
                "link_url": "https://pagerduty.com",
                "link_text": "PagerDuty",
                "state": "triggered",
                "source": "My Ansible Script",
            }
        ):
            with patch.object(pagerduty_alert, "fetch_url") as fetch_url_mock:
                fetch_url_mock.return_value = (Response(), {"status": 202})
                with self.assertRaises(AnsibleExitJson):
                    self.module.main()

            assert fetch_url_mock.call_count == 1
            url = fetch_url_mock.call_args[0][1]
            json_data = fetch_url_mock.call_args[1]["data"]
            data = json.loads(json_data)

            assert url == "https://events.pagerduty.com/v2/enqueue"
            assert data["routing_key"] == "test"
            assert data["payload"]["summary"] == "Description for alert"
            assert data["payload"]["source"] == "My Ansible Script"
            assert data["payload"]["class"] == "ping failure"
            assert data["payload"]["component"] == "mysql"
            assert data["payload"]["custom_details"]["environment"] == "production"
            assert data["payload"]["custom_details"]["notes"] == "this is a test note"
            assert data["links"][0]["href"] == "https://pagerduty.com"
            assert data["links"][0]["text"] == "PagerDuty"

    def test_ensure_alert_acknowledged(self):
        with set_module_args(
            {
                "state": "acknowledged",
                "api_version": "v2",
                "integration_key": "test",
                "incident_key": "incident_test_id",
            }
        ):
            with patch.object(pagerduty_alert, "fetch_url") as fetch_url_mock:
                fetch_url_mock.return_value = (Response(), {"status": 202})
                with self.assertRaises(AnsibleExitJson):
                    self.module.main()

            assert fetch_url_mock.call_count == 1
            url = fetch_url_mock.call_args[0][1]
            json_data = fetch_url_mock.call_args[1]["data"]
            data = json.loads(json_data)

            assert url == "https://events.pagerduty.com/v2/enqueue"
            assert data["routing_key"] == "test"
            assert data["event_action"] == "acknowledge"
            assert data["dedup_key"] == "incident_test_id"