/* * 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.merchantpos.history import android.os.Bundle import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import androidx.annotation.StringRes import androidx.fragment.app.Fragment import androidx.fragment.app.activityViewModels import androidx.lifecycle.Observer import androidx.navigation.fragment.findNavController import com.google.android.material.snackbar.BaseTransientBottomBar.LENGTH_LONG import com.google.android.material.snackbar.Snackbar import kotlinx.android.synthetic.main.fragment_refund.* import net.taler.common.Amount import net.taler.common.AmountParserException import net.taler.common.fadeIn import net.taler.common.fadeOut import net.taler.common.navigate import net.taler.merchantlib.OrderHistoryEntry import net.taler.merchantpos.MainViewModel import net.taler.merchantpos.R import net.taler.merchantpos.history.RefundFragmentDirections.Companion.actionRefundFragmentToRefundUriFragment import net.taler.merchantpos.history.RefundResult.AlreadyRefunded import net.taler.merchantpos.history.RefundResult.Error import net.taler.merchantpos.history.RefundResult.PastDeadline import net.taler.merchantpos.history.RefundResult.Success class RefundFragment : Fragment() { private val model: MainViewModel by activityViewModels() private val refundManager by lazy { model.refundManager } override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { return inflater.inflate(R.layout.fragment_refund, container, false) } override fun onViewCreated(view: View, savedInstanceState: Bundle?) { val item = refundManager.toBeRefunded ?: throw IllegalStateException() amountInputView.setText(item.amount.amountStr) currencyView.text = item.amount.currency abortButton.setOnClickListener { findNavController().navigateUp() } refundButton.setOnClickListener { onRefundButtonClicked(item) } refundManager.refundResult.observe(viewLifecycleOwner, Observer { result -> onRefundResultChanged(result) }) } private fun onRefundButtonClicked(item: OrderHistoryEntry) { val inputAmount = try { Amount.fromString(item.amount.currency, amountInputView.text.toString()) } catch (e: AmountParserException) { amountView.error = getString(R.string.refund_error_invalid_amount) return } if (inputAmount > item.amount) { amountView.error = getString(R.string.refund_error_max_amount, item.amount.amountStr) return } if (inputAmount.isZero()) { amountView.error = getString(R.string.refund_error_zero) return } amountView.error = null refundButton.fadeOut() progressBar.fadeIn() refundManager.refund(item, inputAmount, reasonInputView.text.toString()) } private fun onRefundResultChanged(result: RefundResult?): Any = when (result) { Error -> onError(R.string.refund_error_backend) PastDeadline -> onError(R.string.refund_error_deadline) AlreadyRefunded -> onError(R.string.refund_error_already_refunded) is Success -> { progressBar.fadeOut() refundButton.fadeIn() navigate(actionRefundFragmentToRefundUriFragment()) } null -> { // no-op } } private fun onError(@StringRes res: Int) { Snackbar.make(requireView(), res, LENGTH_LONG).show() progressBar.fadeOut() refundButton.fadeIn() } }