"""Add missing created_at and updated_at columns to memorial_photos table

Revision ID: 0021
Revises: 0020
Create Date: 2026-06-25 00:00:00.000000

Changes:
  1. ADD created_at TIMESTAMPTZ NOT NULL DEFAULT NOW() to memorial_photos
  2. ADD updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW() to memorial_photos

Purpose: Migration 0003 created memorial_photos without the TimestampMixin
columns (created_at, updated_at) that the MemorialPhoto ORM model inherits
from BaseModel via TenantModel. Any query that performs a selectinload on
memorial.photos raises 'psycopg.errors.UndefinedColumn: column
memorial_photos.created_at does not exist', causing HTTP 500 on
GET /records/{id} when a memorial with photos exists.
"""
from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "0021"
down_revision: Union[str, None] = "0020"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column(
        "memorial_photos",
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("NOW()"),
            nullable=False,
        ),
    )
    op.add_column(
        "memorial_photos",
        sa.Column(
            "updated_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("NOW()"),
            nullable=False,
        ),
    )


def downgrade() -> None:
    op.drop_column("memorial_photos", "updated_at")
    op.drop_column("memorial_photos", "created_at")