"""Unit tests for file manager."""
import tempfile
from pathlib import Path
from unittest.mock import patch

import pytest

from app.services import file_manager


@pytest.fixture
def temp_data_dir():
    """Create temporary data directory."""
    with tempfile.TemporaryDirectory() as tmpdir:
        yield Path(tmpdir)


class TestFileManager:
    def test_create_request_dir(self, temp_data_dir):
        """Test request directory creation."""
        with patch('app.services.file_manager.settings.upload_dir', str(temp_data_dir)):
            req_dir = file_manager.create_request_dir()
            assert Path(req_dir).exists()
            assert Path(req_dir).parent == temp_data_dir

    def test_directory_size(self, temp_data_dir):
        """Test directory size calculation."""
        test_file = temp_data_dir / 'test.txt'
        test_file.write_text('x' * 1024)  # 1KB
        
        size_mb = file_manager.get_directory_size_mb(str(temp_data_dir))
        assert size_mb > 0

    def test_cleanup_old_jobs(self, temp_data_dir):
        """Test old jobs cleanup."""
        with patch('app.services.file_manager.settings.jobs_dir', str(temp_data_dir)):
            # Create old directory
            old_job = temp_data_dir / 'old-job'
            old_job.mkdir()
            (old_job / 'file.txt').write_text('test')
            
            # Should be cleaned up with hours=0
            cleaned = file_manager.cleanup_old_jobs(hours=0)
            assert cleaned >= 1