"""add abandoned status to habit

Revision ID: 0006_add_habit_abandoned
Revises: 0005_add_summary_notif_log
Create Date: 2026-07-17

"""
from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "0006_add_habit_abandoned"
down_revision: Union[str, None] = "0005_add_summary_notif_log"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column("habit", sa.Column("abandoned_at", sa.DateTime(), nullable=True))
    op.drop_constraint("ck_habit_status", "habit", type_="check")
    op.create_check_constraint("ck_habit_status", "habit", "status in ('active','completed','abandoned')")


def downgrade() -> None:
    op.drop_constraint("ck_habit_status", "habit", type_="check")
    op.create_check_constraint("ck_habit_status", "habit", "status in ('active','completed')")
    op.drop_column("habit", "abandoned_at")