#!/usr/bin/env python3
"""W-08j 退出保存进度：保存进度快照（不改变状态）。"""
result = {'success': False, 'data': {}}
try:
    user_id = await get_user()
    session_id = params_kw.get('session_id', '')
    if not session_id:
        result['code'] = 400
        result['error'] = '缺少 session_id'
    else:
        progress_json = params_kw.get('progress_json', '')
        score = params_kw.get('score', None)
        level = params_kw.get('level', None)
        elapsed_ms = params_kw.get('elapsed_ms', None)
        data = await game_save_progress(user_id, session_id, progress_json=progress_json,
                                        score=score, level=level, elapsed_ms=elapsed_ms)
        result['success'] = True
        result['data'] = data
except ValueError as e:
    result['code'] = 400
    result['error'] = str(e)
except Exception as e:
    result['error'] = str(e)
return json.dumps(result, ensure_ascii=False, default=str)