#!/usr/bin/env python
"""Django's command-line utility for administrative tasks."""
import os
import sys
from pathlib import Path

def main():
    """Run administrative tasks."""
    try:
        from dotenv import load_dotenv
        env_path = Path(__file__).resolve().parent.parent / '.env'
        if env_path.exists():
            load_dotenv(env_path)
    except ImportError:
        pass

    # --- FIX: Preload libraries for WeasyPrint/Pango ---
    # Manually load libraries using absolute paths since LD_LIBRARY_PATH 
    # changes don't affect dlopen() in the running process.
    import ctypes
    import ctypes.util
    import traceback

    lib_paths = [
        '/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0',
        '/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0',
        '/usr/lib/x86_64-linux-gnu/libfontconfig.so.1',
        '/usr/lib/x86_64-linux-gnu/libcairo.so.2',
        '/usr/lib/x86_64-linux-gnu/libpango-1.0.so.0',
        '/usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0',
    ]

    for path in lib_paths:
        try:
            ctypes.CDLL(path)
        except OSError:
            # Continue even if one fails
            pass

    # Try to import weasyprint to see if it works
    try:
        import weasyprint
    except Exception as e:
        # Log the specific error for debugging
        error_msg = f"WeasyPrint Import Error: {str(e)}\n{traceback.format_exc()}"
        sys.stderr.write(error_msg)
        try:
            with open("weasyprint_error.log", "w") as f:
                f.write(error_msg)
        except Exception:
            pass

        # Fallback to mock if system dependencies are missing or import fails
        import types
        class MockHTML:
            def __init__(self, string=None, base_url=None):
                pass
            def write_pdf(self, target=None):
                raise OSError("WeasyPrint system dependencies are missing. PDF generation is disabled.")
        
        mock_wp = types.ModuleType("weasyprint")
        mock_wp.HTML = MockHTML
        sys.modules["weasyprint"] = mock_wp
    # ---------------------------------------------------

    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
    try:
        from django.core.management import execute_from_command_line
    except ImportError as exc:
        raise ImportError(
            "Couldn't import Django. Are you sure it's installed and "
            "available on your PYTHONPATH environment variable? Did you "
            "forget to activate a virtual environment?"
        ) from exc
    execute_from_command_line(sys.argv)

if __name__ == '__main__':
    main()