"""Lightweight v2 outbox worker entrypoint.

Usage:
    python -m memory_gateway.worker_v2 --limit 100 --worker-id local-worker --lease-seconds 300
"""
from __future__ import annotations

import argparse
import asyncio
import json
from typing import Sequence
from uuid import uuid4

from .services_v2 import v2_service


def build_parser() -> argparse.ArgumentParser:
    parser = argparse.ArgumentParser(description="Process Memory Gateway v2 outbox events once.")
    parser.add_argument("--limit", type=int, default=100, help="Maximum pending events to claim and process.")
    parser.add_argument("--worker-id", default=None, help="Stable worker id recorded in outbox lease fields.")
    parser.add_argument("--lease-seconds", type=int, default=300, help="Lease duration for claimed events.")
    return parser


async def run_once(limit: int, worker_id: str | None, lease_seconds: int) -> dict[str, object]:
    worker_id = worker_id or f"worker_{uuid4().hex[:12]}"
    response = await v2_service.process_pending_outbox_events_summary(
        limit=limit,
        worker_id=worker_id,
        lease_seconds=lease_seconds,
    )
    return response.model_dump(mode="json")


def main(argv: Sequence[str] | None = None) -> int:
    args = build_parser().parse_args(argv)
    payload = asyncio.run(
        run_once(
            limit=args.limit,
            worker_id=args.worker_id,
            lease_seconds=args.lease_seconds,
        )
    )
    print(json.dumps(payload, ensure_ascii=False, sort_keys=True))
    return 0


if __name__ == "__main__":
    raise SystemExit(main())