import asyncio
from logging.config import fileConfig

from alembic import context
from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine

from app.core.config import settings
from app.models import Base  # noqa: F401 - registers all models

config = context.config

# Use the app's database URL (swap driver for sync alembic operations)
db_url = settings.database_url

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

target_metadata = Base.metadata


def run_migrations_offline() -> None:
    context.configure(
        url=db_url.replace("+asyncpg", ""),
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )
    with context.begin_transaction():
        context.run_migrations()


def do_run_migrations(connection) -> None:
    context.configure(connection=connection, target_metadata=target_metadata)
    with context.begin_transaction():
        context.run_migrations()


async def run_async_migrations() -> None:
    engine: AsyncEngine = create_async_engine(db_url)
    async with engine.connect() as connection:
        await connection.run_sync(do_run_migrations)
    await engine.dispose()


def run_migrations_online() -> None:
    asyncio.run(run_async_migrations())


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