# Webhooks for external integrations.

from datetime import datetime

from django.http import HttpRequest, HttpResponse

from zerver.decorator import webhook_view
from zerver.lib.response import json_success
from zerver.lib.timestamp import datetime_to_global_time
from zerver.lib.typed_endpoint import JsonBodyPayload, typed_endpoint
from zerver.lib.validator import WildValue, check_string
from zerver.lib.webhooks.common import OptionalUserSpecifiedTopicStr, check_send_webhook_message
from zerver.models import UserProfile


@webhook_view("Canarytokens")
@typed_endpoint
def api_canarytoken_webhook(
    request: HttpRequest,
    user_profile: UserProfile,
    *,
    message: JsonBodyPayload[WildValue],
    user_specified_topic: OptionalUserSpecifiedTopicStr = None,
) -> HttpResponse:
    """
    Construct a response to a webhook event from a Thinkst canarytoken from
    canarytokens.org. Canarytokens from Thinkst's paid product have a different
    schema and should use the "thinkst" integration. See linked documentation
    below for a schema:

    https://help.canary.tools/hc/en-gb/articles/360002426577-How-do-I-configure-notifications-for-a-Generic-Webhook-
    """
    topic_name = "canarytoken alert"
    time = message["time"].tame(check_string)
    formatted_time = datetime_to_global_time(
        datetime.fromisoformat(time.replace("(UTC)", "").strip() + "+00:00")
    )
    body = (
        f"**:alert: Canarytoken has been triggered on {formatted_time}!**\n\n"
        f"{message['memo'].tame(check_string)} \n\n"
        f"[Manage this canarytoken]({message['manage_url'].tame(check_string)})"
    )

    if user_specified_topic:
        topic_name = user_specified_topic

    check_send_webhook_message(request, user_profile, topic_name, body)
    return json_success(request)
