Retrieve data from api and put into room - kotlin

Question

I'm facing this error when putting data into room from my api:
java.lang.RuntimeException: Unable to invoke no-args constructor for
retrofit2.Call<com.example.youbank.models.Customer>. Registering an
InstanceCreator with Gson for this type may fix this problem.
I have looked up this issue and tried multiple things to fix it but, i think there is something else wrong, which probably comes down to my lack of knowledge on this subject.
Sorry for the big copypaste of my code but i don't know where to fix this problem so im just including what i think is needed.
HomeScreenFragment:
class HomeScreenMotionFragment: Fragment(), CoroutineScope {
private var job: Job = Job()
override val coroutineContext: CoroutineContext
get() = Dispatchers.IO + job
override fun onDestroy() {
super.onDestroy()
job.cancel()
}
private var _binding: FragmentHomeScreenMotionBinding? = null
private val binding get() = _binding!!
private val vm: CustomerViewModel by activityViewModels()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
launch {
vm.addCustomerToRoomDB(14)
}
}
CustomerViewModel:
class CustomerViewModel(application: Application): AndroidViewModel(application) {
val readCustomer: LiveData<RoomCustomer>
val readAccount: LiveData<List<RoomAccount>>
val readCard: LiveData<List<RoomCard>>
private val customerRepo: CustomerRepository
private val accountRepo: AccountRepository
private val cardRepo: CardRepository
var cus: Customer
var a = listOf<Account>()
var cards = listOf<Card>()
init {
cus = Customer()
val customerDao = CustomerDatabase.getDatabase(application).customerDao()
customerRepo = CustomerRepository(customerDao)
readCustomer = customerRepo.readCustomer
val accountDao = CustomerDatabase.getDatabase(application).accountDao()
accountRepo = AccountRepository(accountDao)
readAccount = accountRepo.readAccounts
val cardDao = CustomerDatabase.getDatabase(application).cardDao()
cardRepo = CardRepository(cardDao)
readCard = cardRepo.readCards
}
suspend fun addCustomerToRoomDB(id: Int) {
val service: CustomerService = ApiService.buildService(CustomerService::class.java)
val req: Call<Customer> = service.getCustomerById(id)
req.enqueue(object: Callback<Customer> {
override fun onResponse(call: Call<Customer>, response: Response<Customer>) {
cus = response.body()!!
a = response.body()!!.accounts
cards = response.body()!!.accounts[0].cards
}
override fun onFailure(call: Call<Customer>, t: Throwable) {
Log.d("get customer failed", t.cause.toString())
}
})
val roomCustomer = RoomCustomer(
0, cus.customerId, cus.fullName, cus.phone, cus.address, cus.birthday.toString(), cus.email, cus.password)
val roomAccount = RoomAccount(0, a[0].accountId, a[0].accountNumber, a[0].accountType, a[0].balance)
val roomCard = RoomCard(
0, cards[0].cardId, cards[0].cardNumber, cards[0].ccv, cards[0].expirationDate, cards[0].cardType,
cards[0].cardStatus)
// Adding customer to roomdatabase
customerRepo.addCustomer(roomCustomer)
accountRepo.addAccounts(roomAccount)
cardRepo.addCards(roomCard)
}
}
CustomerService:
interface CustomerService {
#GET("Customers/{id}")
suspend fun getCustomerById(#Path("id") id: Int): Call<Customer>
}
My models:
class Customer {
var customerId: Int = -1
var fullName: String = ""
var phone: String = ""
var address: String = ""
var birthday: Date? = null
var email: String = ""
var password: String = ""
lateinit var accounts: List<Account>
}
class Account {
var accountId: Int = -1
var accountNumber: String = generateAccNumber()
lateinit var accountType: AccountType
var balance: Double = 0.0
lateinit var cards: List<Card>
}
class Card {
var cardId: Int = -1
var cardNumber: Int = -1
var ccv: Int = -1
lateinit var expirationDate: String
lateinit var cardType: CardType
lateinit var cardStatus: CardStatus
}
My repositories:
class CustomerRepository(private val customerDao: CustomerDao) {
val readCustomer: LiveData<RoomCustomer> = customerDao.getCustomer()
fun addCustomer(c: RoomCustomer) {
customerDao.addCustomer(c)
}
}
class AccountRepository (private val accountDao: AccountDao) {
val readAccounts: LiveData<List<RoomAccount>> = accountDao.getAccounts()
fun addAccounts(a: RoomAccount) {
accountDao.addAccount(a)
}
}
class CardRepository(private val cardDao: CardDao) {
val readCards: LiveData<List<RoomCard>> = cardDao.getCards()
fun addCards(c: RoomCard) {
cardDao.addCards(c)
}
}
My daos:
#Dao
interface CustomerDao {
#Query("SELECT * FROM customer_table")
fun getCustomer(): LiveData<RoomCustomer>
#Insert
fun addCustomer(c: RoomCustomer)
#Delete
fun deleteCustomer(c: RoomCustomer)
}
#Dao
interface AccountDao {
#Query("SELECT * FROM accounts_table")
fun getAccounts(): LiveData<List<RoomAccount>>
#Insert
fun addAccount(a: RoomAccount)
#Delete
fun deleteAccount(a: RoomAccount)
}
#Dao
interface CardDao {
#Query("SELECT * FROM cards_table")
fun getCards(): LiveData<List<RoomCard>>
#Insert
fun addCards(c: RoomCard)
#Delete
fun deleteCard(c: RoomCard)
}
My room models:
#Entity(tableName = "customer_table")
data class RoomCustomer(
#PrimaryKey(autoGenerate = true)
val CID: Int,
val customerId: Int,
val fullName: String,
val phone: String,
val address: String,
val birthday: String,
val email: String,
val password: String
)
#Entity(tableName = "accounts_table")
data class RoomAccount(
#PrimaryKey(autoGenerate = true)
val AID: Int,
val accountId: Int,
val accountNumber: String,
val accountType: AccountType,
val balance: Double
)
#Entity(tableName = "cards_table")
data class RoomCard(
#PrimaryKey(autoGenerate = true)
val CID: Int,
val cardId: Int,
val cardNumber: Int,
val ccv: Int,
val expirationDate: String,
val cardType: CardType,
val cardStatus: CardStatus
)