# -*- coding: utf-8 -*-
"""demo 模块初始化 —— 将业务函数注册到 ServerEnv，供 .dspy/.ui 直接调用。

三处同步注册：① 实现(demo/demo.py) ② 包 __init__.py 导入 ③ 本文件 env.xxx = xxx。
"""
from .demo import (
    start_demo, stop_demo, switch_camera, pause_demo,
    update_demo_entity, get_entity_attrs, hotload_script,
    presence_join, presence_leave, set_fullscreen,
    get_demo_state, list_active_sessions,
    DemoParamError, DemoNotFoundError, DemoDuplicateError, DemoStateError,
    DEMO_CAMERA_MODES,
)


def load_demo(env=None):
    """挂载 demo 模块到宿主应用 ServerEnv（宿主 app/scense.py init() 中调用）。"""
    if env is None:
        from ahserver.server_env import ServerEnv
        env = ServerEnv()
    env.start_demo = start_demo
    env.stop_demo = stop_demo
    env.switch_camera = switch_camera
    env.pause_demo = pause_demo
    env.update_demo_entity = update_demo_entity
    env.get_entity_attrs = get_entity_attrs
    env.hotload_script = hotload_script
    env.presence_join = presence_join
    env.presence_leave = presence_leave
    env.set_fullscreen = set_fullscreen
    env.get_demo_state = get_demo_state
    env.list_active_sessions = list_active_sessions
    # 异常类型也注册为 dspy 全局，便于 .dspy 按类型映射状态码
    env.DemoParamError = DemoParamError
    env.DemoNotFoundError = DemoNotFoundError
    env.DemoDuplicateError = DemoDuplicateError
    env.DemoStateError = DemoStateError
    env.DEMO_CAMERA_MODES = DEMO_CAMERA_MODES
    return env