package auth

import (
	"errors"

	"github.com/jackc/pgx/v5/pgconn"
)

// isUniqueViolation reports whether err is a PostgreSQL unique_violation (SQLSTATE 23505),
// e.g. from a duplicate INSERT on a UNIQUE column.
func isUniqueViolation(err error) bool {
	var pgErr *pgconn.PgError
	return errors.As(err, &pgErr) && pgErr.Code == "23505"
}