"""Tests for the query parser, including the required @maintainer syntax."""

from __future__ import annotations

from sjaur.query import OPERATORS, SearchQuery, parse_query


def test_plain_query():
    query = parse_query("firefox")
    assert query.text == "firefox"
    assert query.maintainer is None
    assert query.filters == ()


def test_maintainer_only():
    query = parse_query("@max_musterman")
    assert query.maintainer == "max_musterman"
    assert query.text == ""


def test_maintainer_with_package_query():
    query = parse_query("@max_musterman firefox")
    assert query.maintainer == "max_musterman"
    assert query.text == "firefox"


def test_only_first_word_is_maintainer_query():
    query = parse_query("@john python editor")
    assert query.maintainer == "john"
    assert query.text == "python editor"


def test_separated_operator_token():
    query = parse_query("@ john firefox")
    assert query.maintainer == "john"
    assert query.text == "firefox"


def test_multiple_at_tokens_uses_first():
    query = parse_query("@alice @bob firefox")
    assert query.maintainer == "alice"
    assert query.text == "firefox"


def test_separated_operator_alone_takes_next_word():
    # "@ word" behaves like "@word": the next token is the maintainer query.
    query = parse_query("@ firefox")
    assert query.maintainer == "firefox"
    assert query.text == ""


def test_trailing_operator_without_value_is_ignored():
    query = parse_query("firefox @")
    assert query.maintainer is None
    assert query.text == "firefox"


def test_at_inside_word_is_not_an_operator():
    query = parse_query("user@example.com")
    assert query.maintainer is None
    assert query.text == "user@example.com"


def test_empty_query():
    query = parse_query("")
    assert query == SearchQuery()


def test_whitespace_is_normalized():
    query = parse_query("  firefox   nightly  ")
    assert query.text == "firefox nightly"


def test_operator_registry_is_extensible():
    # Future operators must only need a table entry plus a SearchQuery field.
    assert "@" in OPERATORS
    assert OPERATORS["@"] == "maintainer"