"""Add notification table.

Revision ID: 0008_add_notification_table
Revises: 0007_slot_interval_minutes
Create Date: 2026-02-24
"""

from collections.abc import Sequence

import sqlalchemy as sa

from alembic import op

revision: str = "0008_add_notification_table"
down_revision: str | None = "0007_slot_interval_minutes"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "notification",
        sa.Column("id", sa.String(length=36), nullable=False),
        sa.Column("restaurant_id", sa.String(length=36), nullable=False),
        sa.Column("type", sa.String(length=50), nullable=False),
        sa.Column("title", sa.String(length=255), nullable=False),
        sa.Column("body", sa.Text(), nullable=True),
        sa.Column("is_read", sa.Boolean(), nullable=False, server_default=sa.false()),
        sa.Column("metadata_json", sa.JSON(), nullable=True),
        sa.Column("created_at", sa.DateTime(), nullable=False, server_default=sa.text("now()")),
        sa.ForeignKeyConstraint(["restaurant_id"], ["restaurant.id"]),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(
        "ix_notification_restaurant_unread_created_desc",
        "notification",
        ["restaurant_id", "is_read", sa.text("created_at DESC")],
        unique=False,
    )


def downgrade() -> None:
    op.drop_index("ix_notification_restaurant_unread_created_desc", table_name="notification")
    op.drop_table("notification")