# 这是一个专门为kissher设计的计时器模块

init -1 python in mas_kissher_timer:
    import datetime
    import store

    # 计时器状态变量
    _start_time = None
    _end_time = None
    _duration = 0

    def start_timer():
        """
        开始计时
        """
        global _start_time
        _start_time = datetime.datetime.now()

    def end_timer():
        """
        结束计时并计算持续时间(秒)
        """
        global _end_time, _duration
        _end_time = datetime.datetime.now()
        if _start_time is not None:
            _duration = (_end_time - _start_time).total_seconds()
        else:
            _duration = 0
        return _duration

    def get_duration():
        """
        获取持续时间(秒)
        """
        return _duration

    def reset_timer():
        """
        重置计时器
        """
        global _start_time, _end_time, _duration
        _start_time = None
        _end_time = None
        _duration = 0