"""Юнит-тесты полного библиографического описания по ГОСТ 7.1-2003."""

from app.formatters.gost_7_1 import (
    GOST71Formatter,
    _format_author,
    _format_authors,
    _get_sort_key,
    format_full,
)


def test_author_with_initials():
    assert _format_author({"last_name": "Иванов", "initials": "И. И."}) == "Иванов И. И."


def test_author_initials_get_trailing_dot():
    assert _format_author({"last_name": "Иванов", "initials": "И. И"}) == "Иванов И. И."


def test_author_from_first_name():
    assert (
        _format_author({"last_name": "Петров", "first_name": "Пётр Петрович"})
        == "Петров П.П."
    )


def test_author_last_name_only():
    assert _format_author({"last_name": "Сидоров"}) == "Сидоров"


def test_author_empty():
    assert _format_author({}) == ""


def test_authors_up_to_three_all_listed():
    authors = [{"last_name": "А"}, {"last_name": "Б"}, {"last_name": "В"}]
    assert _format_authors(authors) == "А, Б, В"


def test_authors_four_plus_truncated_ru():
    authors = [{"last_name": n} for n in ("А", "Б", "В", "Г")]
    assert _format_authors(authors, lang="ru") == "А, Б, В, и др."


def test_authors_four_plus_truncated_en():
    authors = [{"last_name": n} for n in ("A", "B", "C", "D")]
    assert _format_authors(authors, lang="en") == "A, B, C, et al."


def test_article_has_journal_year_and_doi():
    doc = {
        "title": "Заголовок статьи",
        "journal": "Вестник науки",
        "year": 2023,
        "volume": "5",
        "issue": "2",
        "pages": "10-20",
        "doi": "10.1234/abc",
        "authors": [{"last_name": "Иванов", "initials": "И.И."}],
    }
    out = format_full(doc)
    assert out.startswith("Иванов И.И.. Заголовок статьи")
    assert "// Вестник науки" in out
    assert "— 2023" in out
    assert "Т. 5" in out and "№ 2" in out
    assert "С. 10-20" in out
    assert out.endswith("DOI: 10.1234/abc")


def test_web_resource_marked_and_has_url():
    doc = {"title": "Портал", "url": "https://example.org", "year": 2024}
    out = GOST71Formatter().format_full(doc)
    assert "[Электронный ресурс]" in out
    assert "URL: https://example.org" in out


def test_sort_key_cyrillic_before_latin():
    ru = _get_sort_key({"authors": [{"last_name": "Яковлев"}]})
    en = _get_sort_key({"authors": [{"last_name": "Adams"}]})
    assert ru < en  # кириллица (префикс 0) сортируется раньше латиницы (префикс 1)