"""C-04 演示：扫描已配置阈值的客户，命中则 Redis pub + 控制台输出。

用法：python scripts/demo/push_threshold_alerts.py
需 MySQL 演示库 + Redis 6380。
"""
from __future__ import annotations

import json
import os
import sys

ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.insert(0, ROOT)

from app.repository.core_ro import CoreReadOnlyRepository
from app.repository.threshold_repository import ThresholdRepository
from app.service.threshold_service import THRESHOLD_PUSH_CHANNEL, run_threshold_check


def main() -> None:
    core = CoreReadOnlyRepository()
    repo = ThresholdRepository()
    customer_ids = repo.list_customer_ids_with_threshold()
    if not customer_ids:
        print("No customers with threshold config.")
        return

    hits = 0
    for cid in customer_ids:
        rows = core.list_holdings(cid, limit=500)
        out = run_threshold_check(cid, rows, trace_id="demo-push", push=True)
        if out.get("alert"):
            hits += 1
            print(json.dumps({"customer_id": cid, **out}, ensure_ascii=False))
    print(f"channel={THRESHOLD_PUSH_CHANNEL} alerts={hits}/{len(customer_ids)}")


if __name__ == "__main__":
    sys.stdout.reconfigure(encoding="utf-8", errors="replace")
    main()