from __future__ import annotations
from logging.config import fileConfig
from alembic import context
from sqlalchemy import engine_from_config, pool
from sourcehub.config import Settings
from sourcehub.db import metadata

config=context.config
if config.config_file_name is not None:
    fileConfig(config.config_file_name)
settings=Settings.from_env()
config.set_main_option("sqlalchemy.url",settings.database_url)
target_metadata=metadata

def run_migrations_offline():
    context.configure(url=settings.database_url,target_metadata=target_metadata,literal_binds=True,compare_type=True)
    with context.begin_transaction(): context.run_migrations()

def run_migrations_online():
    connectable=engine_from_config(config.get_section(config.config_ini_section),prefix="sqlalchemy.",poolclass=pool.NullPool)
    with connectable.connect() as connection:
        context.configure(connection=connection,target_metadata=target_metadata,compare_type=True)
        with context.begin_transaction(): context.run_migrations()

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