PayBillManagerCoroutine.kt

@Singleton
open class PayBillManager {

    @Inject
    lateinit var db: IPaybillDataProvider

    open suspend fun save(bill: SavedBill?) {
        if (bill != null) {
            db.payBillDao().insert(bill)
        }
    }
    
    open suspend fun delete(id: Int?) {
        id ?: return
        db.payBillDao().delete(id)
    }
    
    open suspend fun getAll(): List<SavedBill> = db.payBillDao().getAll()
}