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"""
Modify deadline's callback schema.

Revision ID: 808787349f22
Revises: 3bda03debd04
Create Date: 2025-07-31 19:35:53.150465

"""

from __future__ import annotations

import sqlalchemy as sa
from alembic import op

# revision identifiers, used by Alembic.
revision = "808787349f22"
down_revision = "3bda03debd04"
branch_labels = None
depends_on = None
airflow_version = "3.1.0"


def upgrade():
    """Replace deadline table's string callback and JSON callback_kwargs with JSON callback."""
    with op.batch_alter_table("deadline", schema=None) as batch_op:
        batch_op.drop_column("callback")
        batch_op.drop_column("callback_kwargs")
        batch_op.add_column(sa.Column("callback", sa.JSON(), nullable=False))


def downgrade():
    """Replace deadline table's JSON callback with string callback and JSON callback_kwargs."""
    with op.batch_alter_table("deadline", schema=None) as batch_op:
        batch_op.drop_column("callback")
        batch_op.add_column(sa.Column("callback_kwargs", sa.JSON(), nullable=True))
        batch_op.add_column(sa.Column("callback", sa.String(length=500), nullable=False))
