"""recipe_tasks.vision_recipe_dir: cartella della ricetta VisionSuite v2 (#46)

Percorso relativo sotto upload_path della cartella immutabile che contiene
recipe.json e i file di meta (DXF, modelli .npz, ...).

Revision ID: 016_vision_recipe_dir
Revises: 015_api_key_hash
Create Date: 2026-10-07

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa

revision: str = '016_vision_recipe_dir'
down_revision: Union[str, None] = '015_api_key_hash'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # batch: SQLite non sa fare DROP COLUMN nativo su tutte le versioni
    with op.batch_alter_table('recipe_tasks') as batch:
        batch.add_column(sa.Column('vision_recipe_dir', sa.String(500), nullable=True))


def downgrade() -> None:
    with op.batch_alter_table('recipe_tasks') as batch:
        batch.drop_column('vision_recipe_dir')