"""Tests for Google Colab integration regression issues.

This module contains regression tests for Google Colab specific integration
problems identified by Guillaume, focusing on environment detection, path
handling, and timeout management.

Key issues tested:
- Google Colab environment detection
- Colab-specific path handling
- Timeout handling for operations in Google Colab
- Colab session compatibility
"""

import os
import tempfile
from pathlib import Path
from unittest.mock import patch

import pytest


class TestGoogleColabIntegration:
    """Test Google Colab specific integration issues."""

    def test_colab_environment_detection(self):
        """Test proper detection of Google Colab environment."""
        # Test normal environment
        assert not self._is_google_colab()

        # Test with simulated Colab environment
        with patch.dict(os.environ, {"COLAB_GPU": "0"}):
            # Would be True if we had proper Colab detection
            pass  # Placeholder for actual implementation

    def test_colab_path_handling(self):
        """Test path handling specific to Google Colab environment."""
        with tempfile.TemporaryDirectory() as temp_dir:
            # Simulate Colab-style paths
            colab_content_path = Path(temp_dir) / "content"
            colab_content_path.mkdir()

            manuscript_dir = colab_content_path / "manuscript"
            manuscript_dir.mkdir()
            (manuscript_dir / "01_MAIN.md").write_text("# Colab Test")

            # Test that paths are resolved correctly in Colab-like environment
            from rxiv_maker.utils import find_manuscript_md

            found_file = find_manuscript_md(manuscript_dir)
            assert found_file is not None
            assert "content" in str(found_file.parent)

    def test_colab_timeout_handling(self):
        """Test timeout handling for operations in Google Colab."""
        # Colab sessions can timeout, so operations should be robust
        with patch("subprocess.run") as mock_run:
            # Simulate timeout
            mock_run.side_effect = TimeoutError("Operation timed out")

            from rxiv_maker.engines.operations.generate_figures import FigureGenerator

            with tempfile.TemporaryDirectory() as temp_dir:
                generator = FigureGenerator(figures_dir=temp_dir, output_dir=temp_dir)

                # Should handle timeout gracefully
                try:
                    generator.generate_all_figures()
                except TimeoutError:
                    pytest.fail("Timeout should be handled gracefully")

    def _is_google_colab(self) -> bool:
        """Check if running in Google Colab environment."""
        try:
            # Common ways to detect Colab
            import google.colab  # noqa: F401

            return True
        except ImportError:
            pass

        # Check environment variables
        return "COLAB_GPU" in os.environ or "COLAB_TPU_ADDR" in os.environ


if __name__ == "__main__":
    pytest.main([__file__])
