"""
All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
its licensors.

For complete copyright and license terms please see the LICENSE at the root of this
distribution (the "License"). All use of this software is governed by the License,
or, if provided, by the license below or the license accompanying this file. Do not
remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
"""

import logging
import winreg

logger = logging.getLogger(__name__)

LUMBERYARD_SETTINGS_PATH = r'Software\Amazon\Lumberyard\Settings'

def set_ly_registry_value(reg_path, value_name, new_value, value_type=winreg.REG_DWORD):
    """
    Sets the specified value for the specified value_name in the LY registry key.
    :param reg_path: A string that identifies the registry path to the desired key (e.g. Software\Amazon\Lumberyard\Settings)
    :param value_name: A string that identifies the value name (e.g. UndoLevels, ViewportInteractionModel)
    :param new_value: Value to set on the specified value_name
    :param value_type: The type of value set. Defaults to a 32-bit number.
    :return: None
    """
    # Open LY Registry key
    try:
        key = winreg.CreateKeyEx(winreg.HKEY_CURRENT_USER, reg_path, 0, access=winreg.KEY_ALL_ACCESS)
    except OSError as err:
        logger.error(err)

    # Set value_name to the specified value
    winreg.SetValueEx(key, value_name, 0, value_type, new_value)

    # Verify the value set to the specified value_name
    value = winreg.QueryValueEx(key, value_name)
    if new_value == value[0]:
        logger.debug(f'Successfully set {value_name} to {value[0]}')
    else:
        logger.debug(f'Failed to set {value_name} to {new_value}. Current value is {value[0]}.')


def get_ly_registry_value(reg_path, value_name):
    """
    Gets the current value for an existing value_name in the LY registry key.
    :param reg_path: A string that identifies the registry path to the desired key (e.g. Software\Amazon\Lumberyard\Settings)
    :param value_name: A string that identifies the value name (e.g. UndoLevels, ViewportInteractionModel)
    :return: Value set for the specified value_name
    """
    # Open LY Registry key
    try:
        key = winreg.CreateKeyEx(winreg.HKEY_CURRENT_USER, reg_path, 0, access=winreg.KEY_ALL_ACCESS)
    except OSError as err:
        logger.error(err)

    # Check if value name is present and return current value
    try:
        value_name_value = winreg.QueryValueEx(key, value_name)
        logger.debug(f'{value_name} is {value_name_value[0]}')
        return value_name_value[0]
    except OSError as err:
        logger.error(err)


def delete_ly_registry_value(reg_path, value_name):
    """
    Deletes the specific registry value_name found in the reg_path key.
    :param reg_path: A string that identifies the registry path to the desired key (e.g. Software\Amazon\Lumberyard\Settings)
    :param value_name: A string that identifies the value name (e.g. UndoLevels, ViewportInteractionModel)
    :return: None
    """
    # Open LY Registry key
    try:
        key = winreg.CreateKeyEx(winreg.HKEY_CURRENT_USER, reg_path, 0, access=winreg.KEY_ALL_ACCESS)
    except OSError as err:
        logger.error(err)

    # Attempt to delete the specified key/value
    try:
        winreg.DeleteValue(key, value_name)
    except OSError as err:
        logger.error(err)