#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Copyright (c) 2024 Huawei Device Co., Ltd.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Description: Python HeapProfiler Domain Interfaces
"""

import sys
import json
from pathlib import Path

sys.path.append(str(Path(__file__).parent.parent)) # add aw path to sys.path

from all_utils import CommonUtils
from implement_api.protocol_api import ProtocolImpl
from cdp import heap_profiler
from customized_types import ProtocolType

comm_with_debugger_server = CommonUtils.communicate_with_debugger_server


class HeapProfilerImpl(ProtocolImpl):

    def __init__(self, id_generator, websocket):
        super().__init__(id_generator, websocket)
        self.dispatch_table = {"startTrackingHeapObjects": (self.start_tracking_heap_objects, ProtocolType.send),
                               "stopTrackingHeapObjects": (self.stop_tracking_heap_objects, ProtocolType.send),
                               "takeHeapSnapshot": (self.take_heap_snapshot, ProtocolType.send),
                               "startSampling": (self.start_sampling, ProtocolType.send),
                               "stopSampling": (self.stop_sampling, ProtocolType.send)}

    async def start_tracking_heap_objects(self, message_id, connection, params):
        response = await comm_with_debugger_server(self.websocket, connection,
                                                   heap_profiler.start_tracking_heap_objects(params), message_id)
        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})

    async def stop_tracking_heap_objects(self, message_id, connection, params):
        response = await comm_with_debugger_server(self.websocket, connection,
                                                   heap_profiler.stop_tracking_heap_objects(), message_id)
        while response.startswith('{"method":"HeapProfiler.lastSeenObjectId"') \
                or response.startswith('{"method":"HeapProfiler.heapStatsUpdate"'):
            response = await self.websocket.recv_msg_of_debugger_server(connection.instance_id,
                                                                        connection.received_msg_queue)
        assert r'\"location_fields\":[\"object_index\",\"script_id\",\"line\",\"column\"]' in response, \
            f'\"location_fields\":[\"object_index\",\"script_id\",\"line\",\"column\"] not in {response}'
        pre_response = response
        while response.startswith('{"method":"HeapProfiler.addHeapSnapshotChunk"') \
                or response.startswith('{"method":"HeapProfiler.lastSeenObjectId"') \
                or response.startswith('{"method":"HeapProfiler.heapStatsUpdate"'):
            if response.startswith('{"method":"HeapProfiler.addHeapSnapshotChunk"'):
                pre_response = response
            response = await self.websocket.recv_msg_of_debugger_server(connection.instance_id,
                                                                        connection.received_msg_queue)
        assert pre_response.endswith(r'\n]\n}\n"}}'), 'This is not the last message of addHeapSnapshotChunk'
        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})

    async def take_heap_snapshot(self, message_id, connection, params):
        response = await comm_with_debugger_server(self.websocket, connection,
                                                   heap_profiler.take_heap_snapshot(), message_id)
        assert r'\"location_fields\":[\"object_index\",\"script_id\",\"line\",\"column\"]' in response, \
            'This is not the last message of addHeapSnapshotChunk'
        pre_response = response
        while response.startswith('{"method":"HeapProfiler.addHeapSnapshotChunk"'):
            pre_response = response
            response = await self.websocket.recv_msg_of_debugger_server(connection.instance_id,
                                                                        connection.received_msg_queue)
        assert pre_response.endswith(r'\n]\n}\n"}}'), 'This is not the last message of addHeapSnapshotChunk'
        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})

    async def start_sampling(self, message_id, connection, params):
        response = await comm_with_debugger_server(self.websocket, connection,
                                                   heap_profiler.start_sampling(), message_id)
        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})

    async def stop_sampling(self, message_id, connection, params):
        response = await comm_with_debugger_server(self.websocket, connection,
                                                   heap_profiler.stop_sampling(), message_id)
        response = json.loads(response)
        CommonUtils.assert_equal(response['id'], message_id)
        return response