"""
AI Box Sophon Adapter — 全局变量

模块级共享资源管理。
"""
from typing import Any, TYPE_CHECKING

from chongming_database import Database
from .models.orm import *
from chongming_stream_manager import StreamManager

if TYPE_CHECKING:
    from .mqtt_forward import MQTTForwardClient

# 数据库实例
db: Database | None = None

# 视频流管理器
stream_manager: StreamManager | None = None
link_path: str | None = None

# 外部 MQTT 转发客户端
mqtt_forward: "MQTTForwardClient | None" = None

# 上传文件根目录（用于清理告警关联视频）
upload_root: str = "./data/uploads"

# 告警保留配置
alarm_max_records: int = 0  # 0 表示不限制

# 心跳超时配置（秒）
heartbeat_timeout: float = 15.0

# 心跳上报间隔（秒）
heartbeat_interval: float = 5.0


def set_global_var(name: str, value: Any) -> None:
    """
    设置当前模块的全局变量。
    
    Args:
        name: 变量名（字符串）
        value: 任意值
    """
    globals()[name] = value


__all__ = [
    "db",
    "heartbeat_timeout",
    "heartbeat_interval",
    "mqtt_forward",
    "upload_root",
    "alarm_max_records",
    "set_global_var",
]