from urllib.parse import urlencode

from typing_extensions import override

from zerver.lib.test_classes import WebhookTestCase


class PapertrailHookTests(WebhookTestCase):
    CHANNEL_NAME = "papertrail"
    URL_TEMPLATE = "/api/v1/external/papertrail?&api_key={api_key}&stream={stream}"
    WEBHOOK_DIR_NAME = "papertrail"

    def test_short_message(self) -> None:
        expected_topic_name = "logs"
        expected_message = """
[Search for "Important stuff"](https://papertrailapp.com/searches/42) found **2** matches:

May 18 20:30:02 - abc - cron OR server1:
``` quote
message body
```
May 18 20:30:02 - server1 - cron OR server1:
``` quote
A short event
```
""".strip()

        self.check_webhook(
            "short_post",
            expected_topic_name,
            expected_message,
            content_type="application/x-www-form-urlencoded",
        )

    def test_long_message(self) -> None:
        expected_topic = "logs"
        expected_message = """
[Search for "Important stuff"](https://papertrailapp.com/searches/42) found **5** matches:

May 18 20:30:02 - abc - cron OR server1:
``` quote
message body 1
```
May 18 20:30:02 - abc - cron OR server1:
``` quote
message body 2
```
May 18 20:30:02 - abc - cron OR server1:
``` quote
message body 3
```
May 18 20:30:02 - abc - cron OR server1:
``` quote
message body 4
```
[See more](https://papertrailapp.com/searches/42)
""".strip()

        self.check_webhook(
            "long_post",
            expected_topic,
            expected_message,
            content_type="application/x-www-form-urlencoded",
        )

    def test_incorrect_message(self) -> None:
        with self.assertRaises(AssertionError) as e:
            self.check_webhook(
                "incorrect_post", "", "", content_type="application/x-www-form-urlencoded"
            )

        self.assertIn("Events key is missing from payload", e.exception.args[0])

    @override
    def get_body(self, fixture_name: str) -> str:
        # Papertrail webhook sends a POST request with payload parameter
        # containing the JSON body. Documented here:
        # https://help.papertrailapp.com/kb/how-it-works/web-hooks#encoding
        body = self.webhook_fixture_data("papertrail", fixture_name, file_type="json")
        return urlencode({"payload": body})