import asyncio
import os

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

from app.models import Base

config = context.config
url = os.environ["BITRIX_DATABASE_URL"].replace("postgresql://", "postgresql+asyncpg://", 1)
config.set_main_option("sqlalchemy.url", url)
target_metadata = Base.metadata


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


def do_run(connection) -> None:
    context.configure(connection=connection, target_metadata=target_metadata, include_schemas=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()


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