"""Alembic 环境：迁移用 bd_owner 连接；不用自动建表，迁移脚本都是手写的 SQL。"""

from __future__ import annotations

from alembic import context
from sqlalchemy import create_engine

from bid_doctor.core.config import get_settings


def run_migrations_online() -> None:
    engine = create_engine(
        get_settings().migrate_database_url,
        connect_args={"options": "-c search_path=app,public"},
    )
    with engine.connect() as connection:
        context.configure(connection=connection, version_table_schema="public", transaction_per_migration=True)
        with context.begin_transaction():
            context.run_migrations()


if context.is_offline_mode():
    raise SystemExit("不支持离线模式：迁移脚本里有需要连接数据库的步骤")
run_migrations_online()