"""add_product_messages

Revision ID: g1h2i3j4k5l6
Revises: c9d0e1f2a3b4
Create Date: 2026-08-10

"""
from typing import Sequence, Union
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

revision: str = "g1h2i3j4k5l6"
down_revision: Union[str, None] = "c9d0e1f2a3b4"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "product_messages",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column("product_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("products.id", ondelete="CASCADE"),
                  index=True, nullable=False),
        sa.Column("operator_id", sa.String(50), nullable=False),
        sa.Column("content", sa.Text, nullable=False),
        sa.Column("created_at", sa.DateTime, nullable=True),
    )


def downgrade() -> None:
    op.drop_table("product_messages")