from logging.config import fileConfig

from alembic import context
from sqlalchemy import engine_from_config, pool

from app.core.config import get_settings
from app.core.db_base import Base
from app.modules.approvals import models as approval_models
from app.modules.audit import models as audit_models
from app.modules.business import models as business_models

config = context.config

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

target_metadata = Base.metadata
settings = get_settings()

# Keep imports referenced so SQLAlchemy model classes register with Base.metadata.
_REGISTERED_MODEL_MODULES = (approval_models, audit_models, business_models)


def run_migrations_offline() -> None:
    context.configure(
        url=settings.database_url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )

    with context.begin_transaction():
        context.run_migrations()


def run_migrations_online() -> None:
    configuration = config.get_section(config.config_ini_section, {})
    configuration["sqlalchemy.url"] = settings.database_url
    connectable = engine_from_config(
        configuration,
        prefix="sqlalchemy.",
        poolclass=pool.NullPool,
    )

    with connectable.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()