feat(integrations): Save action message for issues (#66626)

Add repository into Issue Alert code path to start being able to use it,
and create the FF that we will use to enable the logic.

Requires: #66623

Author: ykamo001

src/sentry/conf/server.py

@@ -1904,8 +1904,10 @@ def custom_parameter_sort(parameter: dict) -> tuple[str, int]:
     "organizations:slack-block-kit": False,
     # Improvements to Slack messages using Block Kit
     "organizations:slack-block-kit-improvements": False,
-    # Send Slack notifications to threads
+    # Send Slack notifications to threads for Metric Alerts
     "organizations:slack-thread": False,
+    # Send Slack notifications to threads for Issue Alerts
+    "organizations:slack-thread-issue-alert": False,
     # Enable basic SSO functionality, providing configurable single sign on
     # using services like GitHub / Google. This is *not* the same as the signup
     # and login with Github / Azure DevOps that sentry.io provides.

src/sentry/features/__init__.py

@@ -261,6 +261,7 @@
 default_manager.add("organizations:settings-legal-tos-ui", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
 default_manager.add("organizations:slack-block-kit", OrganizationFeature, FeatureHandlerStrategy.INTERNAL)
 default_manager.add("organizations:slack-thread", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
+default_manager.add("organizations:slack-thread-issue-alert", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
 default_manager.add("organizations:slack-block-kit-improvements", OrganizationFeature, FeatureHandlerStrategy.INTERNAL)
 default_manager.add("organizations:slack-overage-notifications", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
 default_manager.add("organizations:sourcemaps-bundle-flat-file-indexing", OrganizationFeature, FeatureHandlerStrategy.REMOTE)

src/sentry/integrations/repository/__init__.py

@@ -9,9 +9,11 @@
 What we query from an interface level won't change, simply how we query will change, and these classes should be the
 only thing that need to change after we make the migration.
 """
+from sentry.integrations.repository.issue_alert import IssueAlertNotificationMessageRepository
 from sentry.integrations.repository.metric_alert import MetricAlertNotificationMessageRepository
 
 _default_metric_alert_repository = None
+_default_issue_alert_repository = None
 
 
 def get_default_metric_alert_repository() -> MetricAlertNotificationMessageRepository:
@@ -20,3 +22,11 @@ def get_default_metric_alert_repository() -> MetricAlertNotificationMessageRepos
         _default_metric_alert_repository = MetricAlertNotificationMessageRepository.default()
 
     return _default_metric_alert_repository
+
+
+def get_default_issue_alert_repository() -> IssueAlertNotificationMessageRepository:
+    global _default_issue_alert_repository
+    if _default_issue_alert_repository is None:
+        _default_issue_alert_repository = IssueAlertNotificationMessageRepository.default()
+
+    return _default_issue_alert_repository

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

@@ -5,6 +5,8 @@
 
 from sentry import features
 from sentry.eventstore.models import GroupEvent
+from sentry.integrations.repository import get_default_issue_alert_repository
+from sentry.integrations.repository.issue_alert import IssueAlertNotificationMessageRepository
 from sentry.integrations.slack.actions.form import SlackNotifyServiceForm
 from sentry.integrations.slack.client import SlackClient
 from sentry.integrations.slack.message_builder.issues import SlackIssuesMessageBuilder
@@ -52,6 +54,10 @@ def __init__(self, *args: Any, **kwargs: Any) -> None:
                 "placeholder": "e.g. @jane, @on-call-team",
             }
 
+        self._repository: IssueAlertNotificationMessageRepository = (
+            get_default_issue_alert_repository()
+        )
+
     def after(
         self, event: GroupEvent, state: EventState, notification_uuid: str | None = None
     ) -> Generator[CallbackFuture, None, None]: