import asyncio
import os
from logging.config import fileConfig

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

from orrery_search.models import Base

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

db_url = os.environ.get("DATABASE_URL")
if db_url:
    config.set_main_option("sqlalchemy.url", db_url)

target_metadata = Base.metadata

PGAI_MANAGED_TABLES = {
    "document_embedding_store",
}


def include_object(object, name, type_, reflected, compare_to):
    if type_ == "table" and name in PGAI_MANAGED_TABLES:
        return False
    return True


def run_migrations_offline():
    url = config.get_main_option("sqlalchemy.url")
    context.configure(
        url=url,
        target_metadata=target_metadata,
        literal_binds=True,
        include_object=include_object,
    )
    with context.begin_transaction():
        context.run_migrations()


def do_run_migrations(connection):
    context.configure(
        connection=connection,
        target_metadata=target_metadata,
        include_object=include_object,
    )
    with context.begin_transaction():
        context.run_migrations()


async def run_async_migrations():
    connectable = async_engine_from_config(
        config.get_section(config.config_ini_section, {}),
        prefix="sqlalchemy.",
        poolclass=pool.NullPool,
    )
    async with connectable.connect() as connection:
        await connection.run_sync(do_run_migrations)
    await connectable.dispose()


def run_migrations_online():
    asyncio.run(run_async_migrations())


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