# (c) 2015, Michael Scherer <mscherer@redhat.com>
# Copyright (c) 2017 Ansible Project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later

from __future__ import annotations

import pytest

from ansible_collections.community.general.plugins.module_utils import known_hosts

URLS = {
    "ssh://one.example.org/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "one.example.org",
        "add_host_key_cmd": " -t rsa one.example.org",
        "port": None,
    },
    "ssh+git://two.example.org/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "two.example.org",
        "add_host_key_cmd": " -t rsa two.example.org",
        "port": None,
    },
    "rsync://three.example.org/user/example.git": {
        "is_ssh_url": False,
        "get_fqdn": "three.example.org",
        "add_host_key_cmd": None,  # not called for non-ssh urls
        "port": None,
    },
    "git@four.example.org:user/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "four.example.org",
        "add_host_key_cmd": " -t rsa four.example.org",
        "port": None,
    },
    "git+ssh://five.example.org/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "five.example.org",
        "add_host_key_cmd": " -t rsa five.example.org",
        "port": None,
    },
    "ssh://six.example.org:21/example.org": {
        # ssh on FTP Port?
        "is_ssh_url": True,
        "get_fqdn": "six.example.org",
        "add_host_key_cmd": " -t rsa -p 21 six.example.org",
        "port": "21",
    },
    "ssh://[2001:DB8::abcd:abcd]/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "[2001:DB8::abcd:abcd]",
        "add_host_key_cmd": " -t rsa [2001:DB8::abcd:abcd]",
        "port": None,
    },
    "ssh://[2001:DB8::abcd:abcd]:22/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "[2001:DB8::abcd:abcd]",
        "add_host_key_cmd": " -t rsa -p 22 [2001:DB8::abcd:abcd]",
        "port": "22",
    },
    "username@[2001:DB8::abcd:abcd]/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "[2001:DB8::abcd:abcd]",
        "add_host_key_cmd": " -t rsa [2001:DB8::abcd:abcd]",
        "port": None,
    },
    "username@[2001:DB8::abcd:abcd]:path/example.git": {
        "is_ssh_url": True,
        "get_fqdn": "[2001:DB8::abcd:abcd]",
        "add_host_key_cmd": " -t rsa [2001:DB8::abcd:abcd]",
        "port": None,
    },
    "ssh://internal.git.server:7999/repos/repo.git": {
        "is_ssh_url": True,
        "get_fqdn": "internal.git.server",
        "add_host_key_cmd": " -t rsa -p 7999 internal.git.server",
        "port": "7999",
    },
}


@pytest.mark.parametrize("url, is_ssh_url", ((k, URLS[k]["is_ssh_url"]) for k in sorted(URLS)))
def test_is_ssh_url(url, is_ssh_url):
    assert known_hosts.is_ssh_url(url) == is_ssh_url


@pytest.mark.parametrize("url, fqdn, port", ((k, URLS[k]["get_fqdn"], URLS[k]["port"]) for k in sorted(URLS)))
def test_get_fqdn_and_port(url, fqdn, port):
    assert known_hosts.get_fqdn_and_port(url) == (fqdn, port)


@pytest.mark.parametrize(
    "fqdn, port, add_host_key_cmd",
    (
        (URLS[k]["get_fqdn"], URLS[k]["port"], URLS[k]["add_host_key_cmd"])
        for k in sorted(URLS)
        if URLS[k]["is_ssh_url"]
    ),
)
def test_add_host_key(mocker, fqdn, port, add_host_key_cmd):
    am = mocker.MagicMock()

    get_bin_path = mocker.MagicMock()
    get_bin_path.return_value = keyscan_cmd = "/custom/path/ssh-keyscan"
    am.get_bin_path = get_bin_path

    run_command = mocker.MagicMock()
    run_command.return_value = (0, "Needs output, otherwise thinks ssh-keyscan timed out'", "")
    am.run_command = run_command

    append_to_file = mocker.MagicMock()
    append_to_file.return_value = (None,)
    am.append_to_file = append_to_file

    mocker.patch("os.path.isdir", return_value=True)
    mocker.patch("os.path.exists", return_value=True)

    known_hosts.add_host_key(am, fqdn, port=port)
    run_command.assert_called_with(keyscan_cmd + add_host_key_cmd)