# Copyright (c) Microsoft Corporation
# All rights reserved.
#
# MIT License
#
# Permission is hereby granted, free of charge,
# to any person obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and
# to permit persons to whom the Software is furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
# BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

import os
import sys
import json
import socket
from pathlib import Path
import ruamel.yaml as yaml
import psutil
from .constants import ERROR_INFO, NORMAL_INFO, WARNING_INFO, COLOR_RED_FORMAT, COLOR_YELLOW_FORMAT

def get_yml_content(file_path):
    '''Load yaml file content'''
    try:
        with open(file_path, 'r') as file:
            return yaml.load(file, Loader=yaml.Loader)
    except yaml.scanner.ScannerError as err:
        print_error('yaml file format error!')
        print_error(err)
        exit(1)
    except Exception as exception:
        print_error(exception)
        exit(1)

def get_json_content(file_path):
    '''Load json file content'''
    try:
        with open(file_path, 'r') as file:
            return json.load(file)
    except TypeError as err:
        print_error('json file format error!')
        print_error(err)
        return None

def print_error(content):
    '''Print error information to screen'''
    print(COLOR_RED_FORMAT % (ERROR_INFO % content))

def print_normal(content):
    '''Print error information to screen'''
    print(NORMAL_INFO % content)

def print_warning(content):
    '''Print warning information to screen'''
    print(COLOR_YELLOW_FORMAT % (WARNING_INFO % content))

def detect_process(pid):
    '''Detect if a process is alive'''
    try:
        process = psutil.Process(pid)
        return process.is_running()
    except:
        return False

def detect_port(port):
    '''Detect if the port is used'''
    socket_test = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    try:
        socket_test.connect(('127.0.0.1', int(port)))
        socket_test.close()
        return True
    except:
        return False

def get_user():
    if sys.platform == 'win32':
        return os.environ['USERNAME']
    else:
        return os.environ['USER']

def get_python_dir(sitepackages_path):
    if sys.platform == "win32":
        return str(Path(sitepackages_path))
    else:
        return str(Path(sitepackages_path).parents[2])