Show error when none of the servers work

app/LoadingApp/LoadingApp.tsx

@@ -460,7 +460,8 @@ export class LoadingAppClass extends Component<LoadingAppClassProps, LoadingAppC
           });
         }, 1000);
         // not a different one, can be the same.
-        await this.selectTheBestServer(false);
+        const someServerIsWorking = await this.selectTheBestServer(false);
+        console.log('some server is working?', someServerIsWorking);
       }
 
       // Second, check if a wallet exists. Do it async so the basic screen has time to render
@@ -650,9 +651,9 @@ export class LoadingAppClass extends Component<LoadingAppClassProps, LoadingAppC
     });
   };
 
-  selectTheBestServer = async (aDifferentOne: boolean) => {
+  selectTheBestServer = async (aDifferentOne: boolean): Promise<boolean> => {
     // avoiding obsolete ones
-    let withMessage: boolean = true;
+    let someServerIsWorking: boolean = true;
     const actualServer = this.state.server;
     const server = await selectingServer(
       serverUris(this.state.translate).filter(
@@ -664,10 +665,10 @@ export class LoadingAppClass extends Component<LoadingAppClassProps, LoadingAppC
       fasterServer = { uri: server.uri, chainName: server.chainName };
     } else {
       fasterServer = actualServer;
-      // likely here there is a internet conection problem
+      // likely here there is a internet/wifi conection problem
       // all of the servers return an error because they are unreachable probably.
       // the 30 seconds timout was fired.
-      withMessage = false;
+      someServerIsWorking = false;
     }
     console.log(server);
     console.log(fasterServer);
@@ -678,7 +679,7 @@ export class LoadingAppClass extends Component<LoadingAppClassProps, LoadingAppC
     await SettingsFileImpl.writeSettings(SettingsNameEnum.server, fasterServer);
     await SettingsFileImpl.writeSettings(SettingsNameEnum.selectServer, SelectServerEnum.list);
     // message with the result only for advanced users
-    if (this.state.mode === ModeEnum.advanced && withMessage) {
+    if (this.state.mode === ModeEnum.advanced && someServerIsWorking) {
       if (isEqual(actualServer, fasterServer)) {
         this.addLastSnackbar({
           message: this.state.translate('loadedapp.selectingserversame') as string,
@@ -691,13 +692,20 @@ export class LoadingAppClass extends Component<LoadingAppClassProps, LoadingAppC
         });
       }
     }
+    return someServerIsWorking;
   };
 
   checkServer: (s: ServerType) => Promise<boolean> = async (server: ServerType) => {
-    const resp: string = await RPCModule.getLatestBlock(server.uri);
-    //console.log('check server', resp);
-
-    if (resp && !resp.toLowerCase().startsWith(GlobalConst.error)) {
+    const s = {
+      uri: server.uri,
+      chainName: server.chainName,
+      region: '',
+      default: false,
+      latency: null,
+      obsolete: false,
+    } as ServerUrisType;
+    const serverChecked = await selectingServer([s]);
+    if (serverChecked && serverChecked.latency) {
       return true;
     } else {
       return false;
@@ -737,20 +745,34 @@ export class LoadingAppClass extends Component<LoadingAppClassProps, LoadingAppC
           duration: SnackbarDurationEnum.longer,
         });
         // a different server.
-        await this.selectTheBestServer(true);
-        if (start) {
-          this.setState({
-            startingApp: false,
-            serverErrorTries: 1,
-            screen,
-          });
-          this.componentDidMount();
+        const someServerIsWorking = await this.selectTheBestServer(true);
+        if (someServerIsWorking) {
+          if (start) {
+            this.setState({
+              startingApp: false,
+              serverErrorTries: 1,
+              screen,
+            });
+            this.componentDidMount();
+          } else {
+            createAlert(
+              this.setBackgroundError,
+              this.addLastSnackbar,
+              title,
+              result,
+              false,
+              this.state.translate,
+              sendEmail,
+              this.state.info.zingolib,
+            );
+            this.setState({ actionButtonsDisabled: false, serverErrorTries: 0, screen });
+          }
         } else {
           createAlert(
             this.setBackgroundError,
             this.addLastSnackbar,
             title,
-            result,
+            this.state.translate('loadingapp.noservers') as string,
             false,
             this.state.translate,
             sendEmail,
@@ -1336,7 +1358,7 @@ export class LoadingAppClass extends Component<LoadingAppClassProps, LoadingAppC
                         this.setState({
                           startingApp: false,
                         });
-                        this.componentDidMount;
+                        this.componentDidMount();
                       }}
                       style={{ marginBottom: 10 }}
                     />

app/translations/en.json

@@ -94,7 +94,8 @@
     "serverfirsttry": "An error occurred while trying to connect to the above server, currently checking the servers on the list.",
     "serversecondtry": "It doesn't seem to be a problem with the server. Someting else is happening.",
     "alert-donation-title": "TIP ZINGOLABS",
-    "alert-donation-body": "Do you want to help ZingoLabs make Zcash more useful? Opt in to tip one Zenny (0.01 ZEC) to ZingoLabs with each transaction! If so, press confirm, otherwise press Cancel."
+    "alert-donation-body": "Do you want to help ZingoLabs make Zcash more useful? Opt in to tip one Zenny (0.01 ZEC) to ZingoLabs with each transaction! If so, press confirm, otherwise press Cancel.",
+    "noservers": "None of the servers on the list are available, it is probably a connection error."
   },
   "loadedapp": {
     "about": "About Zingo",

app/translations/es.json

@@ -94,7 +94,8 @@
     "serverfirsttry": "Se produjo un error al intentar conectarse al servidor activo, actualmente verificando los servidores en la lista.",
     "serversecondtry": "No parece haber ningún problema con el servidor. Ocurre algo diferente.",
     "alert-donation-title": "APOYAR A ZINGOLABS",
-    "alert-donation-body": "¿Quieres ayudar a ZingoLabs a que Zcash sea más útil? Opta por dar una propina de un Zenny (0.01 ZEC) a ZingoLabs con cada transacción! Si es así, presione confirmar, de lo contrario presione Cancelar."
+    "alert-donation-body": "¿Quieres ayudar a ZingoLabs a que Zcash sea más útil? Opta por dar una propina de un Zenny (0.01 ZEC) a ZingoLabs con cada transacción! Si es así, presione confirmar, de lo contrario presione Cancelar.",
+    "noservers": "Ninguno de los servidores de la lista esta disponible, probablemente se trata de un error de conexion."
   },
   "loadedapp": {
     "about": "Sobre Zingo",

app/translations/pt.json

@@ -94,7 +94,8 @@
     "serverfirsttry": "Ocorreu um erro ao tentar conectar-se ao servidor acima, atualmente verificando os servidores na lista.",
     "serversecondtry": "Não parece haver nenhum problema com o servidor. Algo mais está acontecendo.",
     "alert-donation-title": "APOIAR A ZINGOLABS",
-    "alert-donation-body": "Você quer ajudar o ZingoLabs a tornar o Zcash mais útil? Opte por dar uma gorjeta de um Zenny (0.01 ZEC) para ZingoLabs em cada transação! Se sim, pressione confirmar, caso contrário, pressione Cancelar."
+    "alert-donation-body": "Você quer ajudar o ZingoLabs a tornar o Zcash mais útil? Opte por dar uma gorjeta de um Zenny (0.01 ZEC) para ZingoLabs em cada transação! Se sim, pressione confirmar, caso contrário, pressione Cancelar.",
+    "noservers": "Nenhum dos servidores da lista está disponível, provavelmente é um erro de conexão."
   },
   "loadedapp": {
     "about": "Sobre a Zingo",

app/translations/ru.json

@@ -94,7 +94,8 @@
     "serverfirsttry": "Произошла ошибка при попытке подключения к указанному выше серверу, в настоящее время проверяются серверы в списке.",
     "serversecondtry": "Похоже, что с этим сервером нет никаких проблем. Проблема в чём-то другом.",
     "alert-donation-title": "ПОДДЕРЖИВАЕМЫЕ ZINGOLABS",
-    "alert-donation-body": "Хотите помочь ZingoLabs сделать Zcash более полезным? Подпишитесь на чаевые в размере одного Zenny (0.01 ZEC) в пользу ZingoLabs за каждую транзакцию! Если да, нажмите «Подтвердить», в противном случае нажмите «Отмена»."
+    "alert-donation-body": "Хотите помочь ZingoLabs сделать Zcash более полезным? Подпишитесь на чаевые в размере одного Zenny (0.01 ZEC) в пользу ZingoLabs за каждую транзакцию! Если да, нажмите «Подтвердить», в противном случае нажмите «Отмена».",
+    "noservers": "Ни один из серверов в списке недоступен, возможно, это ошибка подключения."
   },
   "loadedapp": {
     "about": "О Zingo",

package.json

@@ -100,6 +100,7 @@
     "babel-plugin-dynamic-import-node": "^2.3.3",
     "detox": "20.27.2",
     "eslint": "^8.19.0",
+    "eslint-plugin-ft-flow": "^3.0.11",
     "jest": "^29.2.1",
     "metro-react-native-babel-preset": "^0.76.9",
     "prettier": "^2.4.1",

yarn.lock

@@ -4161,6 +4161,14 @@ eslint-plugin-ft-flow@^2.0.1:
     lodash "^4.17.21"
     string-natural-compare "^3.0.1"
 
+eslint-plugin-ft-flow@^3.0.11:
+  version "3.0.11"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-ft-flow/-/eslint-plugin-ft-flow-3.0.11.tgz#64654dad277104fc45aef8d009c4a51057ea1250"
+  integrity sha512-6ZJ4KYGYjIosCcU883zBBT1nFsKP58xrTOwguiw3/HRq0EpYAyhrF1nCGbK7V23cmKtPXMpDfl8qPupt5s5W8w==
+  dependencies:
+    lodash "^4.17.21"
+    string-natural-compare "^3.0.1"
+
 eslint-plugin-jest@^26.5.3:
   version "26.9.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-jest/-/eslint-plugin-jest-26.9.0.tgz#7931c31000b1c19e57dbfb71bbf71b817d1bf949"