"""Add deleted_by column to room_file table

Revision ID: add_deleted_by_to_room_file
Revises: add_deleted_column_to_room_file
Create Date: 2024-03-19 10:45:00.000000

"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy import inspect

# revision identifiers, used by Alembic.
revision = 'add_deleted_by_to_room_file'
down_revision = 'add_deleted_column_to_room_file'
branch_labels = None
depends_on = None

def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    conn = op.get_bind()
    inspector = inspect(conn)
    columns = [col['name'] for col in inspector.get_columns('room_file')]
    
    with op.batch_alter_table('room_file', schema=None) as batch_op:
        if 'deleted_by' not in columns:
            batch_op.add_column(sa.Column('deleted_by', sa.Integer(), nullable=True))
        if 'deleted_at' not in columns:
            batch_op.add_column(sa.Column('deleted_at', sa.DateTime(), nullable=True))
        batch_op.create_foreign_key('fk_room_file_deleted_by_user', 'user', ['deleted_by'], ['id'])

    # ### end Alembic commands ###

def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('room_file', schema=None) as batch_op:
        batch_op.drop_constraint('fk_room_file_deleted_by_user', type_='foreignkey')
        batch_op.drop_column('deleted_at')
        batch_op.drop_column('deleted_by')

    # ### end Alembic commands ###