# -*- coding: utf-8 -*-
# demo/api/presence.dspy —— W-07j 多人预览加入/离开
# 入参: session_id(必填), action(必填 join/leave), user_id(可选), user_name(可选)
try:
    if not params_kw.get('session_id') or not params_kw.get('action'):
        return {"status": 400, "message": "session_id 与 action 不能为空"}
    action = str(params_kw.get('action')).lower()
    if action not in ('join', 'leave'):
        return {"status": 400, "message": "action 只能为 join/leave"}
    if action == 'join':
        data = await presence_join(
            session_id=params_kw.get('session_id'),
            user_id=params_kw.get('user_id', ''),
            user_name=params_kw.get('user_name', ''),
        )
    else:
        data = await presence_leave(
            session_id=params_kw.get('session_id'),
            user_id=params_kw.get('user_id', ''),
        )
    return {"status": 200, "data": data}
except DemoParamError as e:
    return {"status": 400, "message": str(e)}
except DemoNotFoundError as e:
    return {"status": 404, "message": str(e)}
except DemoStateError as e:
    return {"status": 400, "message": str(e)}
except Exception as e:
    return {"status": 500, "message": "presence 内部错误: %s" % e}