"""Add purge_rules table

Revision ID: 0003
Revises: 0002
Create Date: 2026-04-01
"""
from __future__ import annotations

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import postgresql

revision: str = "0003"
down_revision: Union[str, None] = "0002"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "purge_rules",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
        sa.Column("email_address", sa.Text, nullable=False, unique=True),
        sa.Column("display_name", sa.Text),
        sa.Column("older_than_days", sa.Integer, nullable=False, server_default="30"),
        sa.Column("is_active", sa.Boolean, nullable=False, server_default="TRUE"),
        sa.Column("notes", sa.Text),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("NOW()")),
    )
    op.create_index("idx_purge_rules_active", "purge_rules", ["email_address"],
                    postgresql_where=sa.text("is_active = TRUE"))


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