#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#***************************************************************************
#                                  _   _ ____  _
#  Project                     ___| | | |  _ \| |
#                             / __| | | | |_) | |
#                            | (__| |_| |  _ <| |___
#                             \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
#
import pytest
import json
import logging
import os
import re
import shutil
import subprocess
from datetime import timedelta, datetime
from typing import List, Optional, Dict, Union
from urllib.parse import urlparse

from . import ExecResult
from .env import Env


log = logging.getLogger(__name__)


class LocalClient:

    def __init__(self, name: str, env: Env, run_dir: Optional[str] = None,
                 timeout: Optional[float] = None,
                 run_env: Optional[Dict[str,str]] = None):
        self.name = name
        self.path = os.path.join(env.project_dir, f'tests/http/clients/{name}')
        self.env = env
        self._run_env= run_env
        self._timeout = timeout if timeout else env.test_timeout
        self._curl = os.environ['CURL'] if 'CURL' in os.environ else env.curl
        self._run_dir = run_dir if run_dir else os.path.join(env.gen_dir, name)
        self._stdoutfile = f'{self._run_dir}/stdout'
        self._stderrfile = f'{self._run_dir}/stderr'
        self._rmrf(self._run_dir)
        self._mkpath(self._run_dir)

    @property
    def run_dir(self) -> str:
        return self._run_dir

    @property
    def stderr_file(self) -> str:
        return self._stderrfile

    def exists(self) -> bool:
        return os.path.exists(self.path)

    def download_file(self, i: int) -> str:
        return os.path.join(self._run_dir, f'download_{i}.data')

    def _rmf(self, path):
        if os.path.exists(path):
            return os.remove(path)

    def _rmrf(self, path):
        if os.path.exists(path):
            return shutil.rmtree(path)

    def _mkpath(self, path):
        if not os.path.exists(path):
            return os.makedirs(path)

    def run(self, args):
        self._rmf(self._stdoutfile)
        self._rmf(self._stderrfile)
        start = datetime.now()
        exception = None
        myargs = [self.path]
        myargs.extend(args)
        try:
            with open(self._stdoutfile, 'w') as cout:
                with open(self._stderrfile, 'w') as cerr:
                    p = subprocess.run(myargs, stderr=cerr, stdout=cout,
                                       cwd=self._run_dir, shell=False,
                                       input=None, env=self._run_env,
                                       timeout=self._timeout)
                    exitcode = p.returncode
        except subprocess.TimeoutExpired:
            log.warning(f'Timeout after {self._timeout}s: {args}')
            exitcode = -1
            exception = 'TimeoutExpired'
        coutput = open(self._stdoutfile).readlines()
        cerrput = open(self._stderrfile).readlines()
        return ExecResult(args=myargs, exit_code=exitcode, exception=exception,
                          stdout=coutput, stderr=cerrput,
                          duration=datetime.now() - start)

    def dump_logs(self):
        lines = []
        lines.append('>>--stdout ----------------------------------------------\n')
        lines.extend(open(self._stdoutfile).readlines())
        lines.append('>>--stderr ----------------------------------------------\n')
        lines.extend(open(self._stderrfile).readlines())
        lines.append('<<-------------------------------------------------------\n')
        return ''.join(lines)