"""File manager: ls parsing and chmod schema validation."""

from __future__ import annotations

import pytest
from pydantic import ValidationError

from server.api.schemas import FileChmod
from server.utils.unix_ls import modified_from_ls_parts, parse_ls_la_line


def test_parse_ls_la_line_file_classic():
    line = "-rw-r--r-- 1 www www 1234 Jun  1 12:00 index.php"
    row = parse_ls_la_line(line)
    assert row is not None
    assert row["name"] == "index.php"
    assert row["owner"] == "www"
    assert row["group"] == "www"
    assert row["modified"] == "Jun 1 12:00"


def test_parse_ls_la_line_long_iso():
    line = "-rw-r--r-- 1 www www 99 2026-06-01 12:00:00.123456789 +0800 app.log"
    row = parse_ls_la_line(line)
    assert row is not None
    assert row["name"] == "app.log"
    assert row["modified"] == "2026-06-01 12:00:00"


def test_parse_ls_la_line_symlink():
    line = "lrwxrwxrwx 1 root root 8 2026-06-01 10:00:00 +0800 current -> release"
    row = parse_ls_la_line(line)
    assert row is not None
    assert row["is_link"] is True
    assert row["name"] == "current"
    assert row["link_target"] == "release"


def test_parse_ls_la_line_name_with_spaces():
    line = '-rw-r--r-- 1 www www 1 2026-06-01 09:00:00 +0800 my file.txt'
    row = parse_ls_la_line(line)
    assert row is not None
    assert row["name"] == "my file.txt"


def test_parse_ls_la_line_skips_dot_dirs():
    assert parse_ls_la_line("drwxr-xr-x 2 www www 4096 Jun 1 12:00 .") is None
    assert parse_ls_la_line("total 12") is None


def test_modified_from_ls_parts_iso():
    parts = "-rw-r--r-- 1 www www 1 2026-06-01 15:30:45.999 +0800".split(None, 8)[:8]
    assert modified_from_ls_parts(parts) == "2026-06-01 15:30:45"


def test_file_chmod_group_requires_owner():
    with pytest.raises(ValidationError):
        FileChmod(server_id=1, path="/tmp/x", mode="644", group="www")


def test_file_chmod_valid_chown():
    m = FileChmod(server_id=1, path="/tmp/x", mode="755", owner="www", group="www")
    assert m.owner == "www"


def test_file_chmod_recursive_flag():
    m = FileChmod(server_id=1, path="/var/www/html", mode="755", recursive=True)
    assert m.recursive is True


def test_assert_recursive_chmod_forbidden_root():
    from server.utils.files_chmod_policy import assert_recursive_chmod_allowed

    with pytest.raises(ValueError, match="禁止"):
        assert_recursive_chmod_allowed("/")


def test_assert_recursive_chmod_forbidden_system_subtree():
    from server.utils.files_chmod_policy import assert_recursive_chmod_allowed

    with pytest.raises(ValueError, match="禁止"):
        assert_recursive_chmod_allowed("/etc/nginx")


def test_assert_recursive_chmod_allows_common_web_roots():
    from server.utils.files_chmod_policy import assert_recursive_chmod_allowed

    assert_recursive_chmod_allowed("/www/wwwroot/site")
    assert_recursive_chmod_allowed("/var/www/html")