Adding more descriptive error messages in register screen

src/app/screens/RegisterScreen.js

@@ -265,7 +265,7 @@ export default function RegisterScreen(props) {
   const [date, setDate] = useState(_moment);
   const [singUpFailed, setSingUpFailed] = useState(false);
   const [scroll, setScroll] = useState();
-  const [showLog, setShowLog] = useState(false);
+  const [showLog, setShowLog] = useState({show: false, message: ""});
 
   const comparePassword = (password, confirmPassword) => {
     if (password !== confirmPassword) {
@@ -286,25 +286,25 @@ export default function RegisterScreen(props) {
   };
 
   const handleSubmit = async (form) => {
-    console.log("apaaaaaaa");
     const formDate =
       date.format("DD/MM/yyyy") === moment().format("DD/MM/yyyy") ? "" : date;
 
     const result = await signup({ ...form, dateofborn: formDate });
-    // console.log(result)
 
     switch (result.status) {
       case 200:
         automaticLogin(form);
         break;
-      case 422:
-      // setError()
+      default:
+        setShowLog({show: true, message: "Um erro inesperado ocorreu. Tente novamente mais tarde"})
+
     }
   };
 
   const fieldsAreNotInUse = async (form, actions) => {
-    var inUse = true;
+    var inUse = false;
     const ru = await existUsername(form.number);
+    
     if (ru.data) {
       actions.setFieldError("number", "Este número de telefone já está em uso");
       inUse = false;
@@ -316,16 +316,21 @@ export default function RegisterScreen(props) {
       inUse = false;
     }
     
-    return inUse;
+    if (!ru.ok || !rn.ok)
+      setShowLog({show: true, message: "Um erro inesperado ocorreu. Tente novamente mais tarde"})
+
+    inUse && setShowLog({show: true, message: "Apelido de usuário ou telefone em uso"})
+
+    return !inUse;
   };
 
   return (
     <Screen style={styles.containter}>
       <ConfirmationModal
-        show={showLog}
-        description="Apelido de usuário ou telefone em uso"
+        show={showLog.show}
+        description={showLog.message}
         confirmationLabel="OK"
-        onConfirm={() => setShowLog(false)}
+        onConfirm={() => setShowLog({...showLog, show:false})}
       />
       <Form
         initialValues={{
@@ -347,7 +352,7 @@ export default function RegisterScreen(props) {
           comparePassword(form.password, form.confirmPassword);
 
           fieldsAreNotInUse(form, actions).then((isNotUsed) => {
-            isNotUsed ? handleSubmit(form) : setShowLog(true);
+            isNotUsed && handleSubmit(form);
             // NOTE: this woud be nice, but does not work...
             // : scroll.scrollTo({
             //     x: 0,