/*
* This file is part of GNU Taler
* (C) 2020 Taler Systems S.A.
*
* GNU Taler is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 3, or (at your option) any later version.
*
* GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* GNU Taler; see the file COPYING. If not, see
*/
package net.taler.wallet
import android.app.Application
import android.util.Log
import androidx.annotation.UiThread
import androidx.lifecycle.AndroidViewModel
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.distinctUntilChanged
import com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.kotlin.KotlinModule
import net.taler.wallet.backend.WalletBackendApi
import net.taler.wallet.history.HistoryManager
import net.taler.wallet.payment.PaymentManager
import net.taler.wallet.pending.PendingOperationsManager
import net.taler.wallet.withdraw.WithdrawManager
import org.json.JSONObject
const val TAG = "taler-wallet"
data class BalanceItem(val available: Amount, val pendingIncoming: Amount)
class WalletViewModel(val app: Application) : AndroidViewModel(app) {
private val mBalances = MutableLiveData>()
val balances: LiveData> = mBalances.distinctUntilChanged()
val devMode = MutableLiveData(BuildConfig.DEBUG)
val showProgressBar = MutableLiveData()
private var activeGetBalance = 0
private val walletBackendApi = WalletBackendApi(app, {
activeGetBalance = 0
loadBalances()
pendingOperationsManager.getPending()
}) {
Log.i(TAG, "Received notification from wallet-core")
loadBalances()
pendingOperationsManager.getPending()
}
private val mapper = ObjectMapper()
.registerModule(KotlinModule())
.configure(FAIL_ON_UNKNOWN_PROPERTIES, false)
val withdrawManager = WithdrawManager(walletBackendApi)
val paymentManager = PaymentManager(walletBackendApi, mapper)
val pendingOperationsManager: PendingOperationsManager =
PendingOperationsManager(walletBackendApi)
val historyManager = HistoryManager(walletBackendApi, mapper)
override fun onCleared() {
walletBackendApi.destroy()
super.onCleared()
}
@UiThread
fun loadBalances() {
if (activeGetBalance > 0) {
return
}
activeGetBalance++
showProgressBar.value = true
walletBackendApi.sendRequest("getBalances", null) { isError, result ->
activeGetBalance--
if (isError) {
return@sendRequest
}
val balanceList = mutableListOf()
val byCurrency = result.getJSONObject("byCurrency")
val currencyList = byCurrency.keys().asSequence().toList().sorted()
for (currency in currencyList) {
val jsonAmount = byCurrency.getJSONObject(currency)
.getJSONObject("available")
val amount = Amount.fromJson(jsonAmount)
val jsonAmountIncoming = byCurrency.getJSONObject(currency)
.getJSONObject("pendingIncoming")
val amountIncoming = Amount.fromJson(jsonAmountIncoming)
balanceList.add(BalanceItem(amount, amountIncoming))
}
mBalances.postValue(balanceList)
showProgressBar.postValue(false)
}
}
@UiThread
fun dangerouslyReset() {
walletBackendApi.sendRequest("reset", null)
withdrawManager.testWithdrawalInProgress.value = false
mBalances.value = emptyList()
}
fun startTunnel() {
walletBackendApi.sendRequest("startTunnel", null)
}
fun stopTunnel() {
walletBackendApi.sendRequest("stopTunnel", null)
}
fun tunnelResponse(resp: String) {
val respJson = JSONObject(resp)
walletBackendApi.sendRequest("tunnelResponse", respJson)
}
}