#!/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 logging
import os
import pytest

from testenv import Env, CurlClient, LocalClient


log = logging.getLogger(__name__)


class TestPush:
    @pytest.fixture(autouse=True, scope="class")
    def _class_scope(self, env, httpd):
        push_dir = os.path.join(httpd.docs_dir, "push")
        if not os.path.exists(push_dir):
            os.makedirs(push_dir)
        env.make_data_file(indir=push_dir, fname="data1", fsize=1 * 1024)
        env.make_data_file(indir=push_dir, fname="data2", fsize=1 * 1024)
        env.make_data_file(indir=push_dir, fname="data3", fsize=1 * 1024)
        httpd.set_extra_config(
            env.domain1,
            [
                "H2EarlyHints on",
                "<Location /push/data1>",
                "  H2PushResource /push/data2",
                "</Location>",
                "<Location /push/data2>",
                "  H2PushResource /push/data1",
                "  H2PushResource /push/data3",
                "</Location>",
            ],
        )
        # activate the new config
        httpd.reload()
        yield
        httpd.clear_extra_configs()
        httpd.reload()

    # download a file that triggers a "103 Early Hints" response
    def test_09_01_h2_early_hints(self, env: Env, httpd):
        curl = CurlClient(env=env)
        url = f"https://{env.domain1}:{env.https_port}/push/data1"
        r = curl.http_download(
            urls=[url], alpn_proto="h2", with_stats=False, with_headers=True
        )
        r.check_exit_code(0)
        assert len(r.responses) == 2, f"{r.responses}"
        assert r.responses[0]["status"] == 103, f"{r.responses}"
        assert "link" in r.responses[0]["header"], f"{r.responses[0]}"
        assert (
            r.responses[0]["header"]["link"] == "</push/data2>; rel=preload"
        ), f"{r.responses[0]}"

    def test_09_02_h2_push(self, env: Env, httpd):
        # use localhost as we do not have resolve support in local client
        url = f"https://localhost:{env.https_port}/push/data1"
        client = LocalClient(name="h2-serverpush", env=env)
        if not client.exists():
            pytest.skip(f"example client not built: {client.name}")
        r = client.run(args=[url])
        r.check_exit_code(0)
        assert os.path.exists(client.download_file(0))
        assert os.path.exists(os.path.join(client.run_dir, "push0")), r.dump_logs()