# Copyright (c) 2023-present Plane Software, Inc. and contributors
# SPDX-License-Identifier: AGPL-3.0-only
# See the LICENSE file for details.

import json
import logging
from uuid import uuid4

from django.core.serializers.json import DjangoJSONEncoder
from django.db import transaction
from django.utils import timezone

from plane.settings.redis import redis_instance

logger = logging.getLogger(__name__)

ISSUE_EVENT_CHANNEL_PREFIX = "plane:issue-events:project"


def issue_event_channel(project_id):
    return f"{ISSUE_EVENT_CHANNEL_PREFIX}:{project_id}"


def publish_issue_event_on_commit(event_type, issue, actor_id=None, changed_fields=None):
    payload = {
        "event_id": str(uuid4()),
        "type": event_type,
        "workspace_id": str(issue.workspace_id),
        "workspace_slug": issue.workspace.slug if getattr(issue, "workspace", None) else None,
        "project_id": str(issue.project_id),
        "issue_id": str(issue.id),
        "sequence_id": issue.sequence_id,
        "updated_at": issue.updated_at or timezone.now(),
        "actor_id": str(actor_id) if actor_id else None,
        "changed_fields": sorted(set(changed_fields or [])),
    }

    def _publish():
        try:
            redis_instance().publish(
                issue_event_channel(issue.project_id),
                json.dumps(payload, cls=DjangoJSONEncoder),
            )
        except Exception:
            logger.exception("Failed to publish issue realtime event")

    transaction.on_commit(_publish)