From 8ccddfeac24e30ced2f7758f30c77dbf2ae1fced Mon Sep 17 00:00:00 2001
From: poka <poka@p2p.legal>
Date: Mon, 11 Jan 2021 19:46:20 +0100
Subject: [PATCH] Add error handling information when no endpoint is configure.
 Build GVA history query only if pubkey is not empty;

---
 lib/main.dart             |  2 +-
 lib/ui/historyScreen.dart | 13 ++++++++++---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/lib/main.dart b/lib/main.dart
index 736ccd9..6ca2db6 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -22,7 +22,7 @@ T getRandomElement<T>(List<T> list) {
 }
 
 Future<String> getRandomEndpoint() async {
-  // TODO: Improve implemention of getRandomEndpoint() with JSON and error handling
+  // TODO: Improve implemention of getRandomEndpoint()
   // final _json = json.decode(await getJsonEndpoints());
   // print('JSON !! :');
   // print(_json);
diff --git a/lib/ui/historyScreen.dart b/lib/ui/historyScreen.dart
index d13b15f..36cfa46 100644
--- a/lib/ui/historyScreen.dart
+++ b/lib/ui/historyScreen.dart
@@ -110,7 +110,7 @@ class HistoryScreenState extends State<HistoryScreen> {
                 disabledBorder: InputBorder.none,
               ),
               style: TextStyle(fontSize: 14.0, fontWeight: FontWeight.bold)),
-          historyQuery(),
+          if (this.pubkey != '') historyQuery(),
         ]));
   }
 
@@ -138,11 +138,18 @@ class HistoryScreenState extends State<HistoryScreen> {
             }
 
             if (result.hasException) {
-              return Text('\nErrors: \n  ' + result.exception.toString());
+              print('Error GVA: ' + result.exception.toString());
+              return Column(children: <Widget>[
+                SizedBox(height: 50),
+                Text(
+                  "Aucun noeud GVA valide n'a pu être trouvé.\nVeuillez réessayer ultérieurement.",
+                  style: TextStyle(fontSize: 17.0),
+                )
+              ]);
             }
 
             if (result.data == null && result.exception.toString() == null) {
-              return const Text('Both data and errors are null');
+              return const Text('Aucune donnée à afficher.');
             }
 
             final List<dynamic> blockchainTX =