#!/usr/bin/env python3
"""
Test script to verify the encoding fix for CSV imports.
"""

import os
import tempfile
import sys

# Add the project directory to the path
sys.path.insert(0, '/Users/hotswap/Documents/projects/delphi-database-v2')

from app.import_legacy import open_text_with_fallbacks

def test_encoding_fix():
    """Test that the encoding fix can handle problematic files."""

    # Create a test file with problematic encoding (copyright symbol at position 3738)
    test_content = "Plan_Id,Plan_Name\n" + "test" * 1000 + "©" + "test" * 1000

    with tempfile.NamedTemporaryFile(mode='w', encoding='utf-8', delete=False, suffix='.csv') as f:
        f.write(test_content)
        temp_file = f.name

    try:
        # Test that our function can open the file successfully
        file_obj, encoding = open_text_with_fallbacks(temp_file)
        print(f"Successfully opened file with encoding: {encoding}")

        # Read the content to verify it works
        content = file_obj.read()
        file_obj.close()

        print(f"Content length: {len(content)}")
        print("Test passed: Encoding fix works correctly")

    except Exception as e:
        print(f"Test failed: {e}")
        return False
    finally:
        # Clean up
        os.unlink(temp_file)

    return True

if __name__ == "__main__":
    success = test_encoding_fix()
    sys.exit(0 if success else 1)