Fix exchange summary (#1611)

* Fix exchange summary

* Better loading bar placement

* Fix loading coordinators calc

Author: KoalaSat

frontend/src/components/Dialogs/Exchange.tsx

@@ -1,4 +1,4 @@
-import React, { useContext } from 'react';
+import React, { useContext, useEffect, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 
 import {
@@ -35,10 +35,19 @@ interface Props {
 const ExchangeDialog = ({ open = false, onClose }: Props): JSX.Element => {
   const { t } = useTranslation();
   const { federation } = useContext(FederationContext);
+  const [loadingInfo, setLoadingInfo] = useState<boolean>(true);
+
+  useEffect(() => {
+    if (open) federation.loadInfo();
+  }, [open]);
+
+  useEffect(() => {
+    setLoadingInfo(federation.loading);
+  }, [federation.loading]);
 
   return (
     <Dialog open={open} onClose={onClose}>
-      <div style={federation.loading ? {} : { display: 'none' }}>
+      <div style={loadingInfo ? {} : { display: 'none' }}>
         <LinearProgress variant='indeterminate' />
       </div>
       <DialogContent>

frontend/src/models/Federation.model.ts

@@ -176,10 +176,14 @@ export class Federation {
       lifetime_volume: 0,
       version: { major: 0, minor: 0, patch: 0 },
     };
+    this.loading = true;
+    this.exchange.onlineCoordinators = 0;
+    this.exchange.loadingCoordinators = Object.keys(this.coordinators).length;
     this.updateEnabledCoordinators();
 
     for (const coor of Object.values(this.coordinators)) {
       coor.loadInfo(() => {
+        this.exchange.onlineCoordinators = this.exchange.onlineCoordinators + 1;
         this.onCoordinatorSaved();
       });
     }
@@ -202,14 +206,15 @@ export class Federation {
   loadBook = async (): Promise<void> => {
     if (this.connection !== 'api') return;
 
-    this.loading = true;
     this.book = {};
-    this.triggerHook('onFederationUpdate');
+    this.loading = true;
+    this.exchange.onlineCoordinators = 0;
     this.exchange.loadingCoordinators = Object.keys(this.coordinators).length;
+    this.triggerHook('onFederationUpdate');
     for (const coor of Object.values(this.coordinators)) {
       coor.loadBook(() => {
+        this.exchange.onlineCoordinators = this.exchange.onlineCoordinators + 1;
         this.onCoordinatorSaved();
-        this.triggerHook('onFederationUpdate');
       });
     }
   };