import asyncio
import os

from alembic import context
from sqlalchemy.ext.asyncio import async_engine_from_config

config = context.config
config.set_main_option("sqlalchemy.url", os.environ["BITRIX_SYNC_DATABASE_URL"])
target_metadata = None


def run_offline() -> None:
    context.configure(url=config.get_main_option("sqlalchemy.url"), literal_binds=True)
    with context.begin_transaction():
        context.run_migrations()


async def run_online() -> None:
    engine = async_engine_from_config(config.get_section(config.config_ini_section) or {})
    async with engine.connect() as connection:
        await connection.run_sync(do_run)
    await engine.dispose()


def do_run(connection) -> None:
    context.configure(connection=connection)
    with context.begin_transaction():
        context.run_migrations()


if context.is_offline_mode():
    run_offline()
else:
    asyncio.run(run_online())