"""
Configuration Alembic pour ansibase (standalone)
L'URL de la base est injectee par le CLI via config.set_main_option
"""

from logging.config import fileConfig

from sqlalchemy import engine_from_config, pool
from alembic import context

# Objet Config Alembic
config = context.config

# Configuration du logging
if config.config_file_name is not None:
    fileConfig(config.config_file_name)

# Pas d'autogenerate, les migrations sont manuelles (SQL brut)
target_metadata = None


def run_migrations_offline() -> None:
    """Migrations en mode offline (generation SQL sans connexion)"""
    url = config.get_main_option("sqlalchemy.url")
    context.configure(
        url=url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
        version_table="alembic_version_core",
    )

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


def run_migrations_online() -> None:
    """Migrations en mode online (connexion directe a la base)"""
    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,
            version_table="alembic_version_core",
        )

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


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