1 files changed, 115 insertions, 0 deletions
diff --git a/wallet/src/main/java/net/taler/wallet/payment/PayTemplateFragment.kt b/wallet/src/main/java/net/taler/wallet/payment/PayTemplateFragment.kt
new file mode 100644
index 0000000..4eb2c11
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/payment/PayTemplateFragment.kt
@@ -0,0 +1,115 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2023 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.net.Uri
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.compose.ui.platform.ComposeView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.asFlow
+import androidx.navigation.fragment.findNavController
+import net.taler.common.Amount
+import net.taler.common.showError
+import net.taler.wallet.MainViewModel
+import net.taler.wallet.R
+import net.taler.wallet.compose.TalerSurface
+import net.taler.wallet.compose.collectAsStateLifecycleAware
+import net.taler.wallet.showError
+
+class PayTemplateFragment : Fragment() {
+
+    private val model: MainViewModel by activityViewModels()
+    private lateinit var uriString: String
+    private lateinit var uri: Uri
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?,
+    ): View {
+        uriString = arguments?.getString("uri") ?: error("no amount passed")
+        uri = Uri.parse(uriString)
+
+        val defaultSummary = uri.getQueryParameter("summary")
+        val defaultAmount = uri.getQueryParameter("amount")
+        val amountFieldStatus = getAmountFieldStatus(defaultAmount)
+
+        val payStatusFlow = model.paymentManager.payStatus.asFlow()
+
+        return ComposeView(requireContext()).apply {
+            setContent {
+                val payStatus = payStatusFlow.collectAsStateLifecycleAware(initial = PayStatus.None)
+                TalerSurface {
+                    PayTemplateComposable(
+                        currencies = model.getCurrencies(),
+                        defaultSummary = defaultSummary,
+                        amountStatus = amountFieldStatus,
+                        payStatus = payStatus.value,
+                        onCreateAmount = model::createAmount,
+                        onSubmit = this@PayTemplateFragment::createOrder,
+                        onError = { this@PayTemplateFragment.showError(it) },
+                    )
+                }
+            }
+        }
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        if (uri.queryParameterNames?.isEmpty() == true) {
+            createOrder(null, null)
+        }
+
+        model.paymentManager.payStatus.observe(viewLifecycleOwner) { payStatus ->
+            when (payStatus) {
+                is PayStatus.Prepared -> {
+                    findNavController().navigate(R.id.action_promptPayTemplate_to_promptPayment)
+                }
+
+                is PayStatus.Pending -> if (payStatus.error != null && model.devMode.value == true) {
+                    showError(payStatus.error)
+                }
+
+                else -> {}
+            }
+        }
+    }
+
+    private fun getAmountFieldStatus(defaultAmount: String?): AmountFieldStatus {
+        return if (defaultAmount == null) {
+            AmountFieldStatus.FixedAmount
+        } else if (defaultAmount.isBlank()) {
+            AmountFieldStatus.Default()
+        } else {
+            val parts = defaultAmount.split(":")
+            when (parts.size) {
+                0 -> AmountFieldStatus.Default()
+                1 -> AmountFieldStatus.Default(currency = parts[0])
+                2 -> AmountFieldStatus.Default(parts[1], parts[0])
+                else -> AmountFieldStatus.Invalid
+            }
+        }
+    }
+
+    private fun createOrder(summary: String?, amount: Amount?) {
+        model.paymentManager.preparePayForTemplate(uriString, summary, amount)
+    }
+}