diff options
Diffstat (limited to 'wallet/src/main/java/net/taler/wallet/WalletViewModel.kt')
-rw-r--r-- | wallet/src/main/java/net/taler/wallet/WalletViewModel.kt | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/wallet/src/main/java/net/taler/wallet/WalletViewModel.kt b/wallet/src/main/java/net/taler/wallet/WalletViewModel.kt new file mode 100644 index 0000000..14a800f --- /dev/null +++ b/wallet/src/main/java/net/taler/wallet/WalletViewModel.kt @@ -0,0 +1,124 @@ +/* + * 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 <http://www.gnu.org/licenses/> + */ + +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<List<BalanceItem>>() + val balances: LiveData<List<BalanceItem>> = mBalances.distinctUntilChanged() + + val devMode = MutableLiveData(BuildConfig.DEBUG) + val showProgressBar = MutableLiveData<Boolean>() + + 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<BalanceItem>() + 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) + } + +} |