from __future__ import annotations

import time

from app.clients.pywechat_client import ClientRegistry, OnlineStatus, registry


class HeartbeatService:
    def __init__(self, registry: ClientRegistry):
        self.registry = registry

    def heartbeat(self, account_id: str, payload: dict) -> dict:
        client = self.registry.get_or_create(account_id, payload.get("account_name"))
        client.heartbeat()
        if "risk_level" in payload:
            client.state.risk_level = payload["risk_level"]
        if "sent_count_today" in payload:
            client.state.sent_count_today = payload["sent_count_today"]
        return {"success": True, "account_id": account_id}

    def check_offline_accounts(self, timeout_seconds: int = 120) -> list[dict]:
        now = time.time()
        offline = []
        for client in self.registry.list_all():
            last = client.state.last_heartbeat_at
            if client.state.online_status == OnlineStatus.ONLINE and (last is None or now - last > timeout_seconds):
                client.state.online_status = OnlineStatus.OFFLINE
                offline.append({"account_id": client.state.account_id, "last_heartbeat_at": last})
        return offline


heartbeat_service = HeartbeatService(registry)