"""Migrations versionnées. Exécutées avec le rôle propriétaire (EDCF_DATABASE_OWNER_URL)."""
from logging.config import fileConfig

from alembic import context
from sqlalchemy import create_engine, pool

from edcf.core.config import get_config
from edcf.models import Base

if context.config.config_file_name:
    fileConfig(context.config.config_file_name)

target_metadata = Base.metadata


def _url() -> str:
    return context.config.attributes.get("url") or get_config().database_owner_url


def run_migrations_offline() -> None:
    context.configure(url=_url(), target_metadata=target_metadata, literal_binds=True)
    with context.begin_transaction():
        context.run_migrations()


def run_migrations_online() -> None:
    connectable = context.config.attributes.get("connection")
    if connectable is not None:
        context.configure(connection=connectable, target_metadata=target_metadata)
        with context.begin_transaction():
            context.run_migrations()
        return
    engine = create_engine(_url(), poolclass=pool.NullPool)
    with engine.connect() as connection:
        context.configure(connection=connection, target_metadata=target_metadata)
        with context.begin_transaction():
            context.run_migrations()


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