from logging.config import fileConfig
from sqlalchemy import pool
from sqlalchemy.ext.asyncio import create_async_engine
from alembic import context
import asyncio

config = context.config

if config.config_file_name is not None:
    fileConfig(config.config_file_name)

target_metadata = None

def run_migrations_offline():
    url = config.get_main_option("sqlalchemy.url")
    context.configure(
        url=url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )
    with context.begin_transaction():
        context.run_migrations()

def run_migrations_online():
    connectable = create_async_engine(
        config.get_main_option("sqlalchemy.url"),
        poolclass=pool.NullPool,
    )

    async def run_async_migrations():
        async with connectable.connect() as connection:
            await connection.run_sync(do_run_migrations)
        await connectable.dispose()

    def do_run_migrations(connection):
        context.configure(connection=connection, target_metadata=target_metadata)
        with context.begin_transaction():
            context.run_migrations()

    asyncio.run(run_async_migrations())

if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()