🐛 fix: fix uptime issue threads

src/sentry/integrations/slack/actions/notification.py

@@ -1,12 +1,14 @@
 from __future__ import annotations
 
 from collections.abc import Generator, Sequence
+from datetime import datetime
 from logging import Logger, getLogger
 from typing import Any
 
 import orjson
 from slack_sdk.errors import SlackApiError
 
+from sentry import features
 from sentry.api.serializers.rest_framework.rule import ACTION_UUID_KEY
 from sentry.constants import ISSUE_ALERTS_THREAD_DEFAULT
 from sentry.eventstore.models import GroupEvent
@@ -39,9 +41,11 @@
     unpack_slack_api_error,
 )
 from sentry.integrations.utils.metrics import EventLifecycle
+from sentry.issues.grouptype import GroupCategory
 from sentry.models.options.organization_option import OrganizationOption
 from sentry.models.rule import Rule
 from sentry.notifications.additional_attachment_manager import get_additional_attachment
+from sentry.notifications.utils.open_period import open_period_start_for_group
 from sentry.rules.actions import IntegrationEventAction
 from sentry.rules.base import CallbackFuture
 from sentry.types.rules import RuleFuture
@@ -129,6 +133,17 @@ def send_notification(event: GroupEvent, futures: Sequence[RuleFuture]) -> None:
                 rule_action_uuid=rule_action_uuid,
             )
 
+            open_period_start: datetime | None = None
+            if (
+                features.has(
+                    "organizations:slack-threads-refactor-uptime", self.project.organization
+                )
+                and event.group.issue_category == GroupCategory.UPTIME
+            ):
+                open_period_start = open_period_start_for_group(event.group)
+                # Save in the notification message object so it can be used in the repository
+                new_notification_message_object.open_period_start = open_period_start
+
             def get_thread_ts(lifecycle: EventLifecycle) -> str | None:
                 """Find the thread in which to post this notification as a reply.
 
@@ -152,6 +167,7 @@ def get_thread_ts(lifecycle: EventLifecycle) -> str | None:
                         rule_id=rule_id,
                         group_id=event.group.id,
                         rule_action_uuid=rule_action_uuid,
+                        open_period_start=open_period_start,
                     )
                 except Exception as e:
                     lifecycle.record_halt(e)