From e350d497abe560aeeef88081ae93d73135ece00f Mon Sep 17 00:00:00 2001
From: Torsten Grote <t@grobox.de>
Date: Wed, 7 Sep 2022 16:28:04 -0300
Subject: [wallet] implement prototype for handling incoming pay-pull URI

---
 .../net/taler/wallet/peer/OutgoingPullFragment.kt  | 86 ++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 wallet/src/main/java/net/taler/wallet/peer/OutgoingPullFragment.kt

(limited to 'wallet/src/main/java/net/taler/wallet/peer/OutgoingPullFragment.kt')

diff --git a/wallet/src/main/java/net/taler/wallet/peer/OutgoingPullFragment.kt b/wallet/src/main/java/net/taler/wallet/peer/OutgoingPullFragment.kt
new file mode 100644
index 0000000..b1593ff
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/peer/OutgoingPullFragment.kt
@@ -0,0 +1,86 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2022 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.peer
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.compose.material.Surface
+import androidx.compose.ui.platform.ComposeView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.navigation.findNavController
+import com.google.android.material.composethemeadapter.MdcTheme
+import net.taler.common.Amount
+import net.taler.wallet.MainViewModel
+import net.taler.wallet.R
+import net.taler.wallet.compose.collectAsStateLifecycleAware
+import net.taler.wallet.exchanges.ExchangeItem
+
+class OutgoingPullFragment : Fragment() {
+    private val model: MainViewModel by activityViewModels()
+    private val exchangeManager get() = model.exchangeManager
+    private val peerManager get() = model.peerManager
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?,
+    ): View {
+        val amount = arguments?.getString("amount")?.let {
+            Amount.fromJSONString(it)
+        } ?: error("no amount passed")
+        val exchangeFlow = exchangeManager.findExchangeForCurrency(amount.currency)
+        return ComposeView(requireContext()).apply {
+            setContent {
+                MdcTheme {
+                    Surface {
+                        val state = peerManager.pullState.collectAsStateLifecycleAware()
+                        if (state.value is OutgoingIntro) {
+                            val exchangeState =
+                                exchangeFlow.collectAsStateLifecycleAware(initial = null)
+                            OutgoingPullIntroComposable(
+                                amount = amount,
+                                exchangeState = exchangeState,
+                                onCreateInvoice = this@OutgoingPullFragment::onCreateInvoice,
+                            )
+                        } else {
+                            OutgoingPullResultComposable(state.value) {
+                                findNavController().popBackStack()
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    override fun onStart() {
+        super.onStart()
+        activity?.setTitle(R.string.receive_peer_title)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        if (!requireActivity().isChangingConfigurations) peerManager.resetPullPayment()
+    }
+
+    private fun onCreateInvoice(amount: Amount, exchange: ExchangeItem) {
+        peerManager.initiatePullPayment(amount, exchange)
+    }
+}
-- 
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