"""SQLite parallel-section safety helpers."""

from __future__ import annotations

from app.db.database import (
    is_sqlite_database,
    multi_section_parallel_enabled,
    parallel_section_writes_safe,
)


def test_sqlite_parallel_respects_opt_out(monkeypatch) -> None:
    monkeypatch.setattr(
        "app.db.database.settings.database_url",
        "sqlite+aiosqlite:///./dev.db",
    )
    monkeypatch.setattr(
        "app.db.database.settings.allow_sqlite_parallel_sections",
        False,
    )
    assert is_sqlite_database() is True
    assert parallel_section_writes_safe() is False


def test_multi_section_parallel_via_dedicated_flag(monkeypatch) -> None:
    monkeypatch.setattr(
        "app.db.database.settings.database_url",
        "sqlite+aiosqlite:///./dev.db",
    )
    monkeypatch.setattr(
        "app.db.database.settings.allow_sqlite_parallel_sections",
        True,
    )
    monkeypatch.setattr(
        "app.db.database.settings.enable_parallel_section_generation",
        True,
    )
    monkeypatch.setattr("app.db.database.settings.enable_async_pipeline", False)
    assert multi_section_parallel_enabled() is True


def test_multi_section_parallel_async_fallback(monkeypatch) -> None:
    monkeypatch.setattr(
        "app.db.database.settings.database_url",
        "postgresql+asyncpg://localhost/db",
    )
    monkeypatch.setattr(
        "app.db.database.settings.enable_parallel_section_generation",
        False,
    )
    monkeypatch.setattr("app.db.database.settings.enable_async_pipeline", False)
    assert multi_section_parallel_enabled() is False
    monkeypatch.setattr("app.db.database.settings.enable_async_pipeline", True)
    assert multi_section_parallel_enabled() is True