import asyncio
from logging.config import fileConfig

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

from app.audit import models as audit_models  # noqa: F401 (registers the tables)
from app.core.config import DatabaseSettings
from app.core.db import Base
from app.meetings import models as meeting_models  # noqa: F401 (registers the tables)

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

# The URL comes from DATABASE_URL (.env locally, secret store on servers).
database_url = DatabaseSettings().database_url.get_secret_value()
config.set_main_option("sqlalchemy.url", database_url.replace("%", "%%"))

# Import each model module here as it's added, so autogenerate sees its tables.
target_metadata = Base.metadata


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


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


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


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