from logging.config import fileConfig
from pathlib import Path

from alembic import context
from sqlalchemy import engine_from_config, pool

from core.config import settings
from core.db import Base

# Import all model modules so Base.metadata contains everything ----
# Core
from core import events  # noqa: F401
from core import settings_service  # noqa: F401

# Apps — import each app's models if present
import importlib

APPS_DIR = Path(__file__).resolve().parent.parent.parent / "apps"
if APPS_DIR.exists():
    for entry in sorted(APPS_DIR.iterdir()):
        models_py = entry / "models.py"
        if models_py.exists():
            importlib.import_module(f"apps.{entry.name}.models")

# -------------------------------------------------------------------

config = context.config
config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)

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

target_metadata = Base.metadata


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


def run_migrations_online() -> None:
    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)
        with context.begin_transaction():
            context.run_migrations()


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