import json
from pathlib import Path
from unittest.mock import patch

import pytest

from ldap.convert_ldap_to_db import (
    get_ou_subgroups,
    get_subgroups,
    print_group_membership,
    read_ldap_json,
    read_or_create_selected_groups,
    set_group_member_of,
)


@pytest.fixture
def tmp_path():
    return Path(__file__).parent / "temp"


@pytest.fixture
def sample_groups():
    return {
        "cn=group1,ou=groups,dc=example,dc=com": {
            "cn": "group1",
            "member": ["cn=group2,ou=groups,dc=example,dc=com"],
        },
        "cn=group2,ou=groups,dc=example,dc=com": {
            "cn": "group2",
            "member": ["cn=user1,ou=users,dc=example,dc=com"],
        },
        "cn=user1,ou=users,dc=example,dc=com": {"cn": "user1", "member": []},
    }


@pytest.fixture
def sample_users():
    return {
        "cn=user1,ou=users,dc=example,dc=com": {
            "sAMAccountName": "user1",
            "cn": "User One",
            "mail": "user1@example.com",
            "memberOf": ["cn=group2,ou=groups,dc=example,dc=com"],
        },
    }


def test_read_ldap_json(tmp_path):
    json_file = tmp_path / "test.json"
    test_data = {
        "entries": [
            {"dn": "cn=group1,dc=example,dc=com", "attributes": {"cn": "group1"}},
        ]
    }
    json_file.write_text(json.dumps(test_data), encoding="latin-1")

    with patch("ldap.convert_ldap_to_db.base_dir", tmp_path):
        result = read_ldap_json("test.json")

    assert result == {"cn=group1,dc=example,dc=com": {"cn": "group1"}}


def test_read_or_create_selected_groups_existing(tmp_path, sample_groups):
    json_file = tmp_path / "selected.json"
    selected = ["cn=group1,ou=groups,dc=example,dc=com"]
    json_file.write_text(json.dumps(selected), encoding="latin-1")

    with patch("ldap.convert_ldap_to_db.base_dir", tmp_path):
        result = read_or_create_selected_groups("selected.json", sample_groups)

    assert result == selected


def test_read_or_create_selected_groups_create_new(tmp_path, sample_groups):
    with patch("ldap.convert_ldap_to_db.base_dir", tmp_path):
        result = read_or_create_selected_groups("new_selected.json", sample_groups)

    assert "cn=group1,ou=groups,dc=example,dc=com" in result
    assert "cn=group2,ou=groups,dc=example,dc=com" in result


def test_get_subgroups(sample_groups):
    sel_groups = ["cn=group1,ou=groups,dc=example,dc=com"]
    result = get_subgroups(sample_groups, sel_groups)

    assert "cn=group1,ou=groups,dc=example,dc=com" in result
    assert "cn=group2,ou=groups,dc=example,dc=com" in result


def test_get_subgroups_missing_group(sample_groups):
    sel_groups = ["cn=nonexistent,ou=groups,dc=example,dc=com"]
    result = get_subgroups(sample_groups, sel_groups)

    assert result == []


def test_set_group_member_of(sample_groups):
    sel_groups = ["cn=group1,ou=groups,dc=example,dc=com"]
    set_group_member_of(sample_groups, sel_groups)

    assert sample_groups["cn=group1,ou=groups,dc=example,dc=com"]["memberOf"] == []
    assert sample_groups["cn=group2,ou=groups,dc=example,dc=com"]["memberOf"] == [
        "cn=group1,ou=groups,dc=example,dc=com"
    ]


def test_get_ou_subgroups():
    group_dn = "cn=group1,ou=sales,ou=departments,dc=example,dc=com"
    result = get_ou_subgroups(group_dn)

    assert "ou=sales,ou=departments,dc=example,dc=com" in result
    assert "ou=departments,dc=example,dc=com" in result


def test_get_ou_subgroups_no_ou():
    group_dn = "cn=group1,dc=example,dc=com"
    result = get_ou_subgroups(group_dn)

    assert result == []


def test_print_group_membership(capsys, sample_groups):
    sel_groups = ["cn=group1,ou=groups,dc=example,dc=com"]
    print_group_membership(sample_groups, sel_groups)

    captured = capsys.readouterr()
    assert "group1" in captured.out or "cn=group1" in captured.out