"""
查询所有设备状态 — GET /aibox/list_devices
"""
import json
import logging
from datetime import datetime

from chongming_worker import rpc_method

logger = logging.getLogger(__name__)


@rpc_method(
    subject="aibox_sophon_adapter.list_devices",
    method="GET",
    summary="查询所有设备状态",
)
async def list_devices(worker_id: str = "") -> dict:
    """返回所有已上报过心跳的设备及其在线状态"""
    from ..global_var import db, heartbeat_timeout

    devices = []
    try:
        if db is None:
            raise RuntimeError("Database not initialized")
        async with db.get_session() as session:
            from ..models.orm import BoardHeartbeat
            from sqlalchemy import select, desc

            stmt = select(BoardHeartbeat).order_by(desc(BoardHeartbeat.updated_at)) # type: ignore
            result = await session.execute(stmt)
            records = result.scalars().all()

            now = datetime.now()
            for record in records:
                # 检查是否超时
                elapsed = (now - record.last_ping_time).total_seconds()
                is_online = elapsed <= heartbeat_timeout

                ping_data = {}
                try:
                    ping_data = json.loads(record.ping_data) if record.ping_data else {}
                except json.JSONDecodeError:
                    pass

                devices.append({
                    "board_id": record.board_id,
                    "board_ip": record.board_ip,
                    "board_platform": record.board_platform,
                    "board_type": record.board_type,
                    "board_temp": record.board_temp,
                    "status": record.status,
                    "version": record.version,
                    "system_info": record.system_info,
                    "grant_code": record.grant_code,
                    "grant_desc": record.grant_desc,
                    "is_online": is_online,
                    "last_ping_time": record.last_ping_time.isoformat() if record.last_ping_time else None,
                    "elapsed_seconds": round(elapsed, 1),
                    "host_disk": ping_data.get("HostDisk", {}),
                    "host_memory": ping_data.get("HostMemory", []),
                    "medias_count": len(ping_data.get("Medias", [])),
                    "tasks_count": len(ping_data.get("Tasks", [])),
                    "tpu": ping_data.get("Tpu", []),
                })

    except Exception as e:
        logger.error(f"[list_devices] 查询失败: {e}")
        return {"devices": [], "total": 0, "error": str(e)}

    return {"devices": devices, "total": len(devices)}