"""Unit tests ohne Datenbank für die Zugriffsschicht (Visibility-SQL, Header-Parsing)."""
import pytest
from fastapi import HTTPException

from tenant_context import library_content_visibility_sql, parse_active_club_header


def test_library_visibility_sql_platform_admin_no_filter():
    sql, params = library_content_visibility_sql(
        alias="e",
        profile_id=1,
        role="admin",
        effective_club_id=None,
    )
    assert sql == "TRUE"
    assert params == []


def test_library_visibility_sql_superadmin():
    sql, params = library_content_visibility_sql(
        alias="fp",
        profile_id=2,
        role="superadmin",
        effective_club_id=100,
    )
    assert sql == "TRUE"
    assert params == []


def test_library_visibility_sql_trainer_without_active_club_no_shared_club_branch():
    sql, params = library_content_visibility_sql(
        alias="g",
        profile_id=42,
        role="trainer",
        effective_club_id=None,
    )
    assert "official" in sql
    assert "private" in sql
    assert "visibility = 'club'" not in sql
    assert params == [42]


def test_library_visibility_sql_user_with_active_club_includes_club_branch():
    sql, params = library_content_visibility_sql(
        alias="t",
        profile_id=7,
        role="user",
        effective_club_id=99,
    )
    assert "visibility = 'club'" in sql
    assert "club_members" in sql
    assert params[0] == 7  # private branch created_by
    assert 99 in params
    assert params.count(7) >= 2  # private + EXISTS membership


def test_parse_active_club_header_none_and_empty():
    assert parse_active_club_header(None) is None
    assert parse_active_club_header("") is None
    assert parse_active_club_header("   ") is None


def test_parse_active_club_header_valid():
    assert parse_active_club_header("12") == 12


def test_parse_active_club_header_invalid():
    with pytest.raises(HTTPException) as exc:
        parse_active_club_header("not-int")
    assert exc.value.status_code == 400


def test_parse_active_club_header_non_positive():
    with pytest.raises(HTTPException) as exc:
        parse_active_club_header("0")
    assert exc.value.status_code == 400