# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
from typing import Optional

from ..core._imperative_rt import ProfilerImpl
from ..core._imperative_rt.imperative import sync


class Profiler:
    def __init__(self, path: Optional[str] = None):
        self.impl = ProfilerImpl(path)

    def __enter__(self):
        sync()
        self.impl.enable()
        return self

    def __exit__(self, val, type, trace):
        sync()
        self.impl.disable()

    def dump(self, path: Optional[str] = None):
        self.impl.dump(path)