From 80b1e303477b32ff432b7cda04017fa240692a23 Mon Sep 17 00:00:00 2001
From: Mikael Magnusson <mikma@users.sourceforge.net>
Date: Sat, 28 Jan 2023 18:25:15 +0100
Subject: WIP peer status observable

---
 build.gradle                                                | 1 +
 tunnel/build.gradle                                         | 1 +
 tunnel/src/main/java/com/wireguard/config/InetEndpoint.java | 8 ++++++--
 ui/src/main/res/layout/tunnel_detail_peer.xml               | 6 +++++-
 4 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/build.gradle b/build.gradle
index b9f54f9c..9f72bb30 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,6 +9,7 @@ buildscript {
         coordinatorLayoutVersion = '1.2.0'
         coreKtxVersion = '1.8.0'
         coroutinesVersion = '1.6.4'
+        databindingVersion = '7.0.3'
         datastoreVersion = '1.0.0'
         desugarVersion = '1.1.5'
         fragmentVersion = '1.5.1'
diff --git a/tunnel/build.gradle b/tunnel/build.gradle
index d8aa2497..f9bdeb15 100644
--- a/tunnel/build.gradle
+++ b/tunnel/build.gradle
@@ -68,6 +68,7 @@ android {
 dependencies {
     implementation "androidx.annotation:annotation:$annotationsVersion"
     implementation "androidx.collection:collection:$collectionVersion"
+    implementation "androidx.databinding:databinding-runtime:$databindingVersion"
     implementation "io.grpc:grpc-okhttp:$grpcVersion"
     implementation "io.grpc:grpc-protobuf-lite:$grpcVersion"
     implementation "io.grpc:grpc-stub:$grpcVersion"
diff --git a/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java b/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java
index 66855f11..801e2a42 100644
--- a/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java
+++ b/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java
@@ -18,6 +18,7 @@ import java.util.Optional;
 import java.util.regex.Pattern;
 
 import androidx.annotation.Nullable;
+import androidx.databinding.BaseObservable;
 
 
 /**
@@ -26,7 +27,7 @@ import androidx.annotation.Nullable;
  * Instances of this class are externally immutable.
  */
 @NonNullForAll
-public final class InetEndpoint {
+public final class InetEndpoint extends BaseObservable {
     private static final Pattern BARE_IPV6 = Pattern.compile("^[^\\[\\]]*:[^\\[\\]]*");
     private static final Pattern FORBIDDEN_CHARACTERS = Pattern.compile("[/?#]");
 
@@ -105,8 +106,10 @@ public final class InetEndpoint {
                     }
                     resolved = new InetEndpoint(address.getHostAddress(), true, port);
                     lastResolution = Instant.now();
+                    notifyChange();
                 } catch (final UnknownHostException e) {
                     resolved = null;
+                    notifyChange();
                 }
             }
             return Optional.ofNullable(resolved);
@@ -121,6 +124,7 @@ public final class InetEndpoint {
     @Override
     public String toString() {
         final boolean isBareIpv6 = isResolved && BARE_IPV6.matcher(host).matches();
-        return (isBareIpv6 ? '[' + host + ']' : host) + ':' + port;
+        String ep = (isBareIpv6 ? '[' + host + ']' : host) + ':' + port;
+        return (isResolved || resolved == null) ? ep : ep + " (" + resolved.host + ')';
     }
 }
diff --git a/ui/src/main/res/layout/tunnel_detail_peer.xml b/ui/src/main/res/layout/tunnel_detail_peer.xml
index f295bb13..e5796afd 100644
--- a/ui/src/main/res/layout/tunnel_detail_peer.xml
+++ b/ui/src/main/res/layout/tunnel_detail_peer.xml
@@ -10,6 +10,10 @@
         <variable
             name="item"
             type="com.wireguard.config.Peer" />
+
+        <variable
+            name="endpoint"
+            type="com.wireguard.config.InetEndpoint" />
     </data>
 
     <com.google.android.material.card.MaterialCardView
@@ -134,7 +138,7 @@
                 android:nextFocusDown="@id/persistent_keepalive_text"
                 android:nextFocusForward="@id/persistent_keepalive_text"
                 android:onClick="@{ClipboardUtils::copyTextView}"
-                android:text="@{item.endpoint}"
+                android:text="@{endpoint}"
                 android:visibility="@{!item.endpoint.isPresent() ? android.view.View.GONE : android.view.View.VISIBLE}"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/endpoint_label"
-- 
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