Merge pull request #571 from Adamant-im/fix/login-error-when-no-onlin…

…e-nodes

fix(nodes): can't login when no online nodes available

src/lib/nodes/abstract.client.ts

@@ -53,7 +53,10 @@ export abstract class Client<N extends Node> {
     const node = this.useFastest ? this.getFastestNode() : this.getRandomNode()
 
     if (!node) {
-      throw new Error('No available nodes at the moment')
+      console.warn(`${this.type}: No online nodes at the moment`)
+
+      // Return a random one from the full list hopefully is online
+      return this.nodes[Math.floor(Math.random() * this.nodes.length)].client
     }
 
     return node.client

src/lib/nodes/utils/filterSyncedNodes.ts

@@ -22,7 +22,10 @@ type GroupNodes<N extends Node> = {
  */
 export function filterSyncedNodes<N extends Node>(nodes: N[]): GroupNodes<N> {
   if (nodes.length === 0) {
-    throw new Error('filterSyncedNodes: No nodes provided')
+    return {
+      height: 0,
+      nodes: []
+    }
   }
 
   // For each node we take its height and list of nodes that have the same height ± epsilon