"""Add owner_id to mail_accounts for row-level permissions.

Revision ID: 0053
Revises: 0052
Create Date: 2026-07-29

This migration adds owner_id to mail_accounts so that the universal
visibility/permission system (apply_visibility_filter, check_single_entity_access)
can be used for mail accounts.
"""

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

revision = "0053"
down_revision = "0052"
branch_labels = None
depends_on = None


def upgrade():
    op.execute("ALTER TABLE IF EXISTS mail_accounts ADD COLUMN IF NOT EXISTS owner_id UUID REFERENCES users(id) ON DELETE SET NULL")
    op.execute("DO $$ BEGIN IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'mail_accounts') THEN CREATE INDEX IF NOT EXISTS ix_mail_accounts_owner ON mail_accounts (owner_id); END IF; END $$")


def downgrade():
    op.drop_index("ix_mail_accounts_owner", table_name="mail_accounts")
    op.drop_column("mail_accounts", "owner_id")