prompt for reset, hide spurious error message

6 files changed, 67 insertions, 18 deletions

diff --git a/app/src/main/java/net/taler/wallet/MainActivity.kt b/app/src/main/java/net/taler/wallet/MainActivity.kt
index 5ea96a0..3f38a44 100644
--- a/app/src/main/java/net/taler/wallet/MainActivity.kt
+++ b/app/src/main/java/net/taler/wallet/MainActivity.kt
@@ -45,7 +45,7 @@ import me.zhanghai.android.materialprogressbar.MaterialProgressBar
 import java.util.*
 
 
-class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {
+class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener, ResetDialogEventListener {
 
     lateinit var model: WalletViewModel
 
@@ -223,4 +223,15 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
             }
         }
     }
+
+    override fun onResetConfirmed() {
+        model.dangerouslyReset()
+        val snackbar = Snackbar.make(findViewById(R.id.nav_host_fragment), "Wallet has been reset", Snackbar.LENGTH_SHORT)
+        snackbar.show()
+    }
+
+    override fun onResetCancelled() {
+        val snackbar = Snackbar.make(findViewById(R.id.nav_host_fragment), "Reset cancelled", Snackbar.LENGTH_SHORT)
+        snackbar.show()
+    }
 }
diff --git a/app/src/main/java/net/taler/wallet/PromptPayment.kt b/app/src/main/java/net/taler/wallet/PromptPayment.kt
index f5d4bce..2714a7f 100644
--- a/app/src/main/java/net/taler/wallet/PromptPayment.kt
+++ b/app/src/main/java/net/taler/wallet/PromptPayment.kt
@@ -150,6 +150,9 @@ class PromptPayment : Fragment() {
 
         val abortPaymentButton = view.findViewById<Button>(R.id.button_abort_payment)
 
+        val errorTextView = view.findViewById<TextView>(R.id.pay_error_text)
+        errorTextView.visibility = View.GONE
+
         abortPaymentButton.setOnClickListener {
             model.payStatus.value = PayStatus.None()
             requireActivity().findNavController(R.id.nav_host_fragment).navigateUp()
diff --git a/app/src/main/java/net/taler/wallet/Settings.kt b/app/src/main/java/net/taler/wallet/Settings.kt
index 46bf2e3..ab3fec4 100644
--- a/app/src/main/java/net/taler/wallet/Settings.kt
+++ b/app/src/main/java/net/taler/wallet/Settings.kt
@@ -16,30 +16,66 @@
 
 package net.taler.wallet
 
+import android.app.Dialog
+import android.content.Context
+import android.content.DialogInterface
 import android.os.Bundle
 import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Button
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.DialogFragment
 import androidx.lifecycle.ViewModelProviders
 
+
+interface ResetDialogEventListener {
+    fun onResetConfirmed()
+    fun onResetCancelled()
+}
+
+
+class ResetDialogFragment : DialogFragment() {
+    private lateinit var model: WalletViewModel
+    private lateinit var listener: ResetDialogEventListener
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        return activity?.let {
+            // Use the Builder class for convenient dialog construction
+            val builder = AlertDialog.Builder(it)
+            builder.setMessage("Do you really want to reset the wallet and lose all coins and purchases?  Consider making a backup first.")
+                .setPositiveButton("Reset") { _, _ ->
+                    listener.onResetConfirmed()
+                }
+                .setNegativeButton("Cancel") { _, _ ->
+                    listener.onResetCancelled()
+                }
+            // Create the AlertDialog object and return it
+            builder.create()
+        } ?: throw IllegalStateException("Activity cannot be null")
+    }
+
+    override fun onAttach(context: Context) {
+        super.onAttach(context)
+        // Verify that the host activity implements the callback interface
+        try {
+            // Instantiate the NoticeDialogListener so we can send events to the host
+            listener = context as ResetDialogEventListener
+        } catch (e: ClassCastException) {
+            // The activity doesn't implement the interface, throw exception
+            throw ClassCastException((context.toString() +
+                    " must implement ResetDialogEventListener"))
+        }
+    }
+}
+
 /**
  * A simple [Fragment] subclass.
  *
  */
 class Settings : Fragment() {
 
-    private lateinit var model: WalletViewModel
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
-        model = activity?.run {
-            ViewModelProviders.of(this)[WalletViewModel::class.java]
-        } ?: throw Exception("Invalid Activity")
-
-    }
 
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
@@ -48,10 +84,9 @@ class Settings : Fragment() {
         // Inflate the layout for this fragment
         val view = inflater.inflate(R.layout.fragment_settings, container, false)
         view.findViewById<Button>(R.id.button_reset_wallet_dangerously).setOnClickListener {
-            model.dangerouslyReset()
+            val d = ResetDialogFragment()
+            d.show(requireActivity().supportFragmentManager, "walletResetDialog")
         }
         return view
     }
-
-
 }
diff --git a/app/src/main/java/net/taler/wallet/WalletViewModel.kt b/app/src/main/java/net/taler/wallet/WalletViewModel.kt
index 13fa28e..e5e888d 100644
--- a/app/src/main/java/net/taler/wallet/WalletViewModel.kt
+++ b/app/src/main/java/net/taler/wallet/WalletViewModel.kt
@@ -388,7 +388,7 @@ class WalletViewModel(val app: Application) : AndroidViewModel(app) {
             if (!termsOfServiceAccepted) {
                 val exchange = ei.getJSONObject("exchangeInfo")
                 val tosText = exchange.getString("termsOfServiceText")
-                val tosEtag = exchange.getString("termsOfServiceLastEtag")
+                val tosEtag = exchange.optString("termsOfServiceLastEtag", "undefined")
                 withdrawStatus.postValue(
                     WithdrawStatus.TermsOfServiceReviewRequired(
                         status.talerWithdrawUri,
diff --git a/app/src/main/res/layout/fragment_prompt_payment.xml b/app/src/main/res/layout/fragment_prompt_payment.xml
index ac2b88e..1febf9f 100644
--- a/app/src/main/res/layout/fragment_prompt_payment.xml
+++ b/app/src/main/res/layout/fragment_prompt_payment.xml
@@ -7,7 +7,7 @@
              tools:context=".PromptPayment">
 
     <TextView
-            android:text="Error:"
+            android:text="Error: (placeholder)"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:textSize="15sp"
diff --git a/app/src/main/res/layout/fragment_settings.xml b/app/src/main/res/layout/fragment_settings.xml
index 6ac8b8d..5b85876 100644
--- a/app/src/main/res/layout/fragment_settings.xml
+++ b/app/src/main/res/layout/fragment_settings.xml
@@ -69,10 +69,10 @@
                 android:layout_height="wrap_content"
                 android:ems="10"
                 android:inputType="textPersonName"
-                android:text="Test Settings" />
+                android:text="Developer Settings (be careful!)" />
 
         <Button
-                android:text="Reset Wallet (Dangerous!)"
+                android:text="Reset Wallet (dangerous!)"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content" android:id="@+id/button_reset_wallet_dangerously"/>
     </LinearLayout>