How to connect the relationships between user, roles and permissions?

const users = pgTable("users", {
  id: serial("id").primaryKey(),
  name: text("name").notNull(),
  email: text("email").notNull(),
  password: text("password").notNull(),
});

const roles = pgTable("roles", {
  id: serial("id").primaryKey(),
  name: text("name").notNull(),
});

const permissions = pgTable("permissions", {
  id: serial("id").primaryKey(),
  name: text("name").notNull(),
});

const usersRelations = relations(users, ({ one, many }) => ({
  role: one(roles, {
    fields: [users.id],
    references: [roles.userId],
  }),
  permissions: many(permissions, (join) => join.through(userRoles)),
}));