"""Alembic wiring. The URL comes from the app's settings (PUNCHLIST_DB_URL /
SQLite fallback), never from alembic.ini. target_metadata is Base.metadata
AFTER the kit's four bw_* tables are registered onto it (managed mode), so
autogenerate sees the entire schema — domain and kit alike."""

from logging.config import fileConfig

from alembic import context
from sqlalchemy import engine_from_config, pool

from app import bw_store_sqlalchemy as bwstore
from app.config import get_settings
from app.db import get_session_factory
from app.models import Base

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

# Register the kit's managed tables onto the app metadata (idempotent —
# extend_existing) so migrations own them alongside the domain tables.
bwstore.managed(Base.metadata, get_session_factory())
target_metadata = Base.metadata

config.set_main_option("sqlalchemy.url", get_settings().database_url)


def run_migrations_offline() -> None:
    context.configure(
        url=config.get_main_option("sqlalchemy.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()