conditional columns

export const users = pgTable('users', {
    id: uuid().notNull().primaryKey().defaultRandom(),
    email: text().notNull().unique(),
    password: text().notNull(),
    code: text().notNull(),
    isVerified: boolean().notNull().default(false),
    type: pgEnum('user_type', ['customer', 'artist'])(),
    firstName: text(),
    lastName: text(),
    city: text(),
    nickname: text(),
    isSetupComplete: boolean().generatedAlwaysAs(
        (): SQL => sql`CASE 
        WHEN ${users.isVerified} = true
        AND ${users.firstName} IS NOT NULL 
        AND ${users.lastName} IS NOT NULL 
        AND ${users.city} IS NOT NULL 
        AND ${users.type} IS NOT NULL 
        AND (
          ${users.type} = 'customer' 
          OR (${users.type} = 'artist' AND ${users.nickname} IS NOT NULL)
        )
        THEN true 
        ELSE false 
        END`,
    ),
    createdAt: timestamp().notNull().defaultNow(),
    updatedAt: timestamp().notNull().defaultNow(),
});