"""Folder indexer LLM helpers."""
from __future__ import annotations

from unittest.mock import AsyncMock, patch

import pytest

from app.core.folder_indexer import summarize_text, IndexResult

pytestmark = pytest.mark.asyncio


async def test_summarize_text_returns_summary_and_tokens():
    mock_resp = AsyncMock()
    mock_resp.content = "Kickoff notes covering scope and deadlines."
    mock_resp.usage_metadata = {"input_tokens": 320, "output_tokens": 18, "total_tokens": 338}
    with patch("app.core.folder_indexer._llm_text", new=AsyncMock(return_value=mock_resp)):
        result = await summarize_text(content="hello world", ext=".md", name="kickoff.md")
    assert isinstance(result, IndexResult)
    assert result.summary == "Kickoff notes covering scope and deadlines."
    assert result.tokens_used == 338


async def test_summarize_text_truncates_summary_at_500_chars():
    mock_resp = AsyncMock()
    mock_resp.content = "x" * 1000
    mock_resp.usage_metadata = {"total_tokens": 100}
    with patch("app.core.folder_indexer._llm_text", new=AsyncMock(return_value=mock_resp)):
        result = await summarize_text(content="x", ext=".md", name="x.md")
    assert len(result.summary) <= 500