"""
Test utilities for consistent test workspace and registry management.

This module provides utilities to ensure all tests use project tmp/ directory
and isolated test registries to prevent contamination of production assets.
"""

import time
import shutil
from contextlib import contextmanager
from pathlib import Path
from typing import Optional, Dict, Any

from markitect.assets.constants import (
    DEFAULT_TEST_ASSETS_DIR,
    DEFAULT_TEST_REGISTRY_FILENAME
)


def get_project_root() -> Path:
    """Get the project root directory."""
    return Path(__file__).parent.parent


def create_test_workspace(prefix: str = "test") -> Path:
    """Create a test workspace in the project tmp directory.

    Args:
        prefix: Prefix for the test directory name

    Returns:
        Path to the created test workspace
    """
    project_root = get_project_root()
    temp_dir = project_root / "tmp" / "test_artifacts" / f"{prefix}_{int(time.time() * 1000000)}"
    temp_dir.mkdir(parents=True, exist_ok=True)
    return temp_dir


@contextmanager
def test_workspace(prefix: str = "test"):
    """Context manager for test workspace that auto-cleans up.

    Args:
        prefix: Prefix for the test directory name

    Yields:
        Path to the test workspace
    """
    temp_dir = create_test_workspace(prefix)
    try:
        yield temp_dir
    finally:
        shutil.rmtree(temp_dir, ignore_errors=True)


def get_test_asset_config(workspace_dir: Path,
                         registry_name: Optional[str] = None) -> Dict[str, Any]:
    """Get asset configuration for testing that uses isolated test paths.

    Args:
        workspace_dir: The test workspace directory
        registry_name: Optional custom registry filename

    Returns:
        Configuration dictionary for AssetManager
    """
    if registry_name is None:
        registry_name = "test_registry.json"

    return {
        "assets": {
            "storage_path": str(workspace_dir / "assets"),
            "registry_path": str(workspace_dir / registry_name),
            "database_path": str(workspace_dir / "test_assets.db"),
            "enable_deduplication": True,
            "default_conflict_resolution": "backup"
        }
    }


def ensure_test_tmp_structure():
    """Ensure the test tmp directory structure exists."""
    project_root = get_project_root()
    test_artifacts_dir = project_root / "tmp" / "test_artifacts"
    test_artifacts_dir.mkdir(parents=True, exist_ok=True)
    return test_artifacts_dir


# Backward compatibility functions for existing tests
def temp_workspace():
    """Backward compatibility alias for test_workspace()."""
    return test_workspace()


def create_temp_workspace():
    """Backward compatibility alias for create_test_workspace()."""
    return create_test_workspace()