""" Stub file for testing the project

There are three predefined ways to run tests:

make test:
    runs only unit tests, that are not marked with "fun" (for functional test)
    in a random order. If a test failed before, only the failed tests will be
    run. This is intended to be the default testing method while developing.

make testall:
    runs unit tests and functional tests in random order. Will give a complete
    overview of the test suite.

make coverage:
    runs only tests marked with "fun" (for functional tests) and generates a
    coverage report for the test run. The idea is to check the test coverage
    only on functinal tests to see if a) everything is as much covered as
    possible and b) to find dead code that is not called in end-to-end tests.

all three test strategies will run "make lint" before to catch easily made
mistakes.
"""

import pytest

INFO_RESULT_AD = """
User AlexanderDietz is in group 'users':
  Write access is granted to: AlexanderDietz:/
  Read access is granted to (nearly) all journals.
Labjournal AlexanderDietz:/
  Write access granted to: @administrators, AlexanderDietz
  Read access granted to: @users
"""

INFO_RESULT_OP = """
User OswaldPrucker is in group 'administrators':
  Write access is granted to all journals.
  Read access is granted to all journals.
Labjournal OswaldPrucker:/
  Write access granted to: @administrators, OswaldPrucker
  Read access granted to: @users
"""


INFO_RESULT_AE = """
User AndreasEvers is in group 'alumni':
  Write access is NOT granted to any journals
  Read access is NOT granted to any journals
Labjournal AndreasEvers:/
  Write access granted to: @administrators
  Read access granted to: @users, UrmilShah
"""


INFO_RESULT_US = """
User UrmilShah is in group 'restricted':
  Write access is granted to: UrmilShah:/
  Read access is granted to: AndreasEvers:/
Labjournal UrmilShah:/
  Write access granted to: @administrators, UrmilShah
  Read access granted to: @users
"""


@pytest.mark.fun
def test_get_config(example_authz):
    from elab_users import get_config
    from elab_users.authz import AuthzConfigParser

    tmp_dir = example_authz.parent
    parser = get_config(tmp_dir, "authz")

    assert isinstance(parser, AuthzConfigParser)
    assert parser.elab_users != {}


@pytest.mark.fun
def test_get_config_missing_file(example_authz):
    from elab_users import get_config

    tmp_dir = example_authz.parent
    with pytest.raises(SystemExit):
        get_config(tmp_dir, "not existent")


@pytest.mark.fun
def test_list_users(example_authz, capsys):
    from elab_users import list_users

    list_users(example_authz.parent, example_authz.name)
    captured = capsys.readouterr()

    admins = "Users in group 'administrators':\n  JuergenRuehe\n"
    assert admins in captured.out
    users = "Users in group 'users':\n  AlexanderDietz\n"
    assert users in captured.out
    restricted = "Users in group 'restricted':\n  BeniPrasser\n"
    assert restricted in captured.out
    alumni = "Users in group 'alumni':\n  AlexeyKopyshev\n"
    assert alumni in captured.out


@pytest.mark.fun
def test_show_group_info(example_authz, capsys):
    from elab_users import show_group_info

    show_group_info("alumni", example_authz.parent, example_authz.name)
    captured = capsys.readouterr()

    alumni = "Users in group 'alumni':\n  AlexeyKopyshev\n"
    assert captured.out.startswith(alumni)


@pytest.mark.fun
def test_show_group_info_unknown_group(example_authz):
    from elab_users import show_group_info

    with pytest.raises(SystemExit):
        show_group_info("unknown", example_authz.parent, example_authz.name)


@pytest.mark.fun
def test_add_new_user(example_authz, example_htpasswd, stub_handler, capsys):
    from elab_users import get_config, add_new_user

    add_new_user(
        "JaneDoe",
        "users",
        example_authz.parent,
        example_authz.name,
        example_htpasswd.name,
        handler=stub_handler,
    )
    captured = capsys.readouterr()

    assert captured.out.startswith("New password for :")
    assert "username: JaneDoe" in captured.out
    url = "https://svn.cpi.imtek.uni-freiburg.de/JaneDoe"
    assert f"url:      {url}" in captured.out

    assert stub_handler.stack[0].args[:2] == ["svnadmin", "create"]
    assert stub_handler.stack[0].args[2].endswith("/JaneDoe")

    config = get_config(example_authz.parent, example_authz.name)
    user = config.elab_users["JaneDoe"]
    assert user.group == "users"
    assert user.read_acl == set()
    assert user.write_acl == {"JaneDoe"}

    items = config.items("JaneDoe:/")
    assert sorted(items) == [
        ("@administrators", "rw"),
        ("@alumni", ""),
        ("@restricted", ""),
        ("@users", "r"),
        ("JaneDoe", "rw"),
    ]


@pytest.mark.fun
def test_add_new_user_error_on_existing_user(
    example_authz, example_htpasswd, stub_handler
):
    from elab_users import add_new_user

    with pytest.raises(SystemExit):
        add_new_user(
            "AlexanderDietz",
            "users",
            example_authz.parent,
            example_authz.name,
            example_htpasswd.name,
            handler=stub_handler,
        )


@pytest.mark.fun
def test_add_new_user_error_on_forbidden_name(
    example_authz, example_htpasswd, stub_handler
):
    from elab_users import add_new_user

    with pytest.raises(SystemExit):
        add_new_user(
            "authz",
            "users",
            example_authz.parent,
            example_authz.name,
            example_htpasswd.name,
            handler=stub_handler,
        )


@pytest.mark.fun
def test_retire_user(example_authz, example_htpasswd, stub_handler, capsys):

    from elab_users import get_config, retire_user

    retire_user(
        "AlexanderDietz",
        example_authz.parent,
        example_authz.name,
        example_htpasswd.name,
        handler=stub_handler,
    )
    captured = capsys.readouterr()
    assert captured.out.startswith("Moved user AlexanderDietz to alumni")

    config = get_config(example_authz.parent, example_authz.name)
    user = config.elab_users["AlexanderDietz"]
    assert user.group == "alumni"
    assert user.read_acl == set()
    assert user.write_acl == set()

    assert stub_handler.stack[-1].args[:2] == ["htpasswd", "-D"]


@pytest.mark.fun
def test_retire_user_error_unknown_user(
    example_authz, example_htpasswd, stub_handler
):

    from elab_users import retire_user

    with pytest.raises(SystemExit):
        retire_user(
            "Unknown",
            example_authz.parent,
            example_authz.name,
            example_htpasswd.name,
            handler=stub_handler,
        )


@pytest.mark.fun
def test_retire_user_error_already_alumni(
    example_authz, example_htpasswd, stub_handler
):

    from elab_users import retire_user

    with pytest.raises(SystemExit):
        retire_user(
            "CamillaOestevold",
            example_authz.parent,
            example_authz.name,
            example_htpasswd.name,
            handler=stub_handler,
        )


@pytest.mark.fun
def test_retire_user_error_admin(
    example_authz, example_htpasswd, stub_handler
):

    from elab_users import retire_user

    with pytest.raises(SystemExit):
        retire_user(
            "OswaldPrucker",
            example_authz.parent,
            example_authz.name,
            example_htpasswd.name,
            handler=stub_handler,
        )


@pytest.mark.fun
def test_change_password(
    example_authz, example_htpasswd, stub_handler, capsys
):

    from elab_users import change_password

    change_password(
        "AlexanderDietz",
        example_authz.parent,
        example_authz.name,
        example_htpasswd.name,
        handler=stub_handler,
    )
    captured = capsys.readouterr()
    assert captured.out.startswith("New password for :")

    assert stub_handler.stack[-1].args[:2] == ["htpasswd", "-b"]


@pytest.mark.fun
def test_change_password_error_unknown_user(
    example_authz, example_htpasswd, stub_handler
):

    from elab_users import change_password

    with pytest.raises(SystemExit):
        change_password(
            "Unknown",
            example_authz.parent,
            example_authz.name,
            example_htpasswd.name,
            handler=stub_handler,
        )


@pytest.mark.fun
@pytest.mark.parametrize(
    "user, result",
    [
        ("OswaldPrucker", INFO_RESULT_OP),
        ("AlexanderDietz", INFO_RESULT_AD),
        ("AndreasEvers", INFO_RESULT_AE),
        ("UrmilShah", INFO_RESULT_US),
    ],
)
def test_show_user_info(user, result, example_authz, capsys):
    from elab_users import show_user_info

    show_user_info(
        user,
        example_authz.parent,
        example_authz.name,
    )
    captured = capsys.readouterr()

    assert captured.out.strip() == result.strip()


@pytest.mark.fun
def test_show_user_info_error_unknown_user(example_authz):
    from elab_users import show_user_info

    with pytest.raises(SystemExit):
        show_user_info(
            "Unknown",
            example_authz.parent,
            example_authz.name,
        )


@pytest.mark.fun
@pytest.mark.parametrize(
    "commands, result",
    [
        ([], "Users in group 'restricted':"),
        (["OswaldPrucker"], "granted to all journals"),
        (["user", "OswaldPrucker"], "granted to all journals"),
        (["groups", "alumni"], "Users in group 'alumni':"),
        (["add", "JaneDoe"], "url:"),
        (["restricted", "JaneDoe"], "url:"),
        (["retire", "AlexanderDietz"], "to alumni"),
        (["password", "AlexanderDietz"], "username: AlexanderDietz"),
    ],
)
def test_main(
    commands, result, example_authz, example_htpasswd, stub_handler, capsys
):
    from elab_users import main

    main(
        example_authz.parent,
        example_authz.name,
        example_htpasswd.name,
        handler=stub_handler,
        cli_args=commands,
    )
    captured = capsys.readouterr()

    assert result in captured.out


@pytest.mark.fun
def test_main_help(example_authz, example_htpasswd, stub_handler, capsys):
    from elab_users import main

    with pytest.raises(SystemExit):
        main(
            example_authz.parent,
            example_authz.name,
            example_htpasswd.name,
            handler=stub_handler,
            cli_args=["--help"],
        )
    captured = capsys.readouterr()

    assert "usage: elab-users [-h] [command] [name]" in captured.out