taler-android

PromptPaymentFragment.kt (7226B)

---

 /*
  * This file is part of GNU Taler
  * (C) 2025 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.payment
 
 import android.graphics.Bitmap
 import android.os.Bundle
 import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.livedata.observeAsState
 import androidx.compose.ui.platform.ComposeView
 import androidx.core.os.bundleOf
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
 import com.google.android.material.snackbar.BaseTransientBottomBar.LENGTH_LONG
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.coroutines.launch
 import net.taler.common.showError
 import net.taler.wallet.main.MainViewModel
 import net.taler.wallet.R
 import net.taler.wallet.main.TAG
 import net.taler.wallet.compose.LoadingScreen
 import net.taler.wallet.compose.TalerSurface
 import net.taler.wallet.showError
 
 class PromptPaymentFragment: Fragment(), ProductImageClickListener {
     private val model: MainViewModel by activityViewModels()
     private val paymentManager by lazy { model.paymentManager }
     private val transactionManager by lazy { model.transactionManager }
 
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? = ComposeView(requireContext()).apply {
         setContent {
             TalerSurface {
                 val payStatus by paymentManager.payStatus.observeAsState(PayStatus.None)
                 when(val status = payStatus) {
                     is PayStatus.None,
                     is PayStatus.Loading,
                     is PayStatus.Prepared -> LoadingScreen()
                     is PayStatus.Checked -> {} // does not apply, only used for templates
                     is PayStatus.Choices -> {
                         PromptPaymentComposable(status,
                             onConfirm = { index, useDonau ->
                                 paymentManager.confirmPay(
                                     transactionId = status.transactionId,
                                     choiceIndex = index,
                                     useDonau = useDonau,
                                 )
                             },
                             onCancel = {
                                 transactionManager.abortTransaction(
                                     status.transactionId,
                                     onSuccess = {
                                         Snackbar.make(
                                             requireView(),
                                             getString(R.string.payment_aborted),
                                             LENGTH_LONG
                                         ).show()
                                         findNavController().popBackStack()
                                     },
                                     onError = { error ->
                                         Log.e(TAG, "Error abortTransaction $error")
                                         if (model.devMode.value == false) {
                                             showError(error.userFacingMsg)
                                         } else {
                                             showError(error)
                                         }
                                     }
                                 )
                             },
                             onClickImage = { bitmap ->
                                 onImageClick(bitmap)
                             },
                             checkDonauStatus = { index ->
                                 status.choices.find { it.choiceIndex == index }?.let { choice ->
                                     paymentManager.checkDonauForChoice(choice)
                                 } ?: DonauStatus.Unavailable
                             },
                             onSetupDonau = { donauBaseUrl ->
                                 findNavController().navigate(
                                     R.id.action_main_to_setDonau,
                                     bundleOf(
                                         "donauBaseUrl" to donauBaseUrl,
                                         "saveShouldExit" to true,
                                     ),
                                 )
                             },
                         )
                     }
 
                     else -> {}
                 }
             }
         }
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         paymentManager.payStatus.observe(viewLifecycleOwner) { status ->
             when (status) {
                 is PayStatus.Success -> {
                     paymentManager.resetPayStatus()
                     navigateToTransaction(status.transactionId)
                     if (status.automaticExecution) {
                         Snackbar.make(requireView(), R.string.payment_automatic_execution, LENGTH_LONG).show()
                     }
                 }
 
                 is PayStatus.AlreadyPaid -> {
                     paymentManager.resetPayStatus()
                     navigateToTransaction(status.transactionId)
                     Snackbar.make(requireView(), R.string.payment_already_paid, LENGTH_LONG).show()
                 }
 
                 is PayStatus.Pending -> {
                     paymentManager.resetPayStatus()
                     navigateToTransaction(status.transactionId)
                     if (status.error != null) {
                         if (model.devMode.value == true) {
                             showError(status.error)
                         } else {
                             showError(status.error.userFacingMsg)
                         }
                     }
                 }
 
                 else -> {}
             }
         }
     }
 
     override fun onImageClick(image: Bitmap) {
         val f = ProductImageFragment.new(image)
         f.show(parentFragmentManager, "image")
     }
 
     private fun navigateToTransaction(id: String?) {
         lifecycleScope.launch {
             if (id != null && transactionManager.selectTransaction(id)) {
                 findNavController().navigate(R.id.action_global_transactionPayment)
             } else {
                 findNavController().navigate(R.id.action_global_main)
             }
         }
     }
 }