feat: show a snackbar and redirect to Nodes page when no active nodes

src/components/LoginForm.vue

@@ -55,8 +55,9 @@
 import { validateMnemonic } from 'bip39'
 import { computed, ref, defineComponent } from 'vue'
 import { useStore } from 'vuex'
+import { useRouter } from 'vue-router'
 import { isAxiosError } from 'axios'
-import { isAllNodesOfflineError } from '@/lib/nodes/utils/errors'
+import { isAllNodesOfflineError, isAllNodesDisabledError } from '@/lib/nodes/utils/errors'
 
 export default defineComponent({
   props: {
@@ -67,6 +68,7 @@ export default defineComponent({
   },
   emits: ['login', 'error', 'update:modelValue'],
   setup(props, { emit }) {
+    const router = useRouter()
     const store = useStore()
     const showSpinner = ref(false)
 
@@ -104,6 +106,9 @@ export default defineComponent({
             emit('error', 'login.invalid_passphrase')
           } else if (isAllNodesOfflineError(err)) {
             emit('error', 'errors.all_nodes_offline')
+          } else if (isAllNodesDisabledError(err)) {
+            emit('error', 'errors.all_nodes_disabled')
+            router.push({ name: 'Nodes' })
           } else {
             emit('error', 'errors.something_went_wrong')
           }

src/lib/nodes/abstract.client.ts

@@ -1,5 +1,5 @@
 import type { HealthcheckInterval, NodeKind, NodeType } from '@/lib/nodes/types'
-import { AllNodesOfflineError } from './utils/errors'
+import { AllNodesDisabledError, AllNodesOfflineError } from './utils/errors'
 import { filterSyncedNodes } from './utils/filterSyncedNodes'
 import { Node } from './abstract.node'
 import { nodesStorage } from './storage'
@@ -137,6 +137,11 @@ export abstract class Client<N extends Node> {
   }
 
   protected getNode() {
+    const nodes = this.nodes.filter((node) => node.active)
+    if (nodes.length === 0) {
+      throw new AllNodesDisabledError(this.type)
+    }
+
     const node = this.useFastest ? this.getFastestNode() : this.getRandomNode()
     if (!node) {
       // All nodes seem to be offline: let's refresh the statuses

src/lib/nodes/adm/AdmClient.ts

@@ -3,8 +3,6 @@ import { GetHeightResponseDto } from '@/lib/schema/client'
 import { AdmNode, Payload, RequestConfig } from './AdmNode'
 import { Client } from '../abstract.client'
 
-const CHECK_ONLINE_NODE_INTERVAL = 10000
-
 /**
  * Provides methods for calling the ADAMANT API.
  *
@@ -44,39 +42,17 @@ export class AdmClient extends Client<AdmNode> {
    * @param {RequestConfig} config request config
    */
   async request<P extends Payload = Payload, R = any>(config: RequestConfig<P>): Promise<R> {
-    const node = await this.fetchAvailableNode()
-
-    return node.request(config).catch((error) => {
-      if (isNodeOfflineError(error)) {
-        // Initiate nodes status check
-        this.checkHealth()
-        // If the selected node is not available, repeat the request with another one.
-        return this.request(config)
-      }
-      throw error
-    })
-  }
-
-  async fetchAvailableNode() {
-    const node = this.useFastest ? this.getFastestNode() : this.getRandomNode()
-    if (node) {
-      return node
-    }
-
-    return await new Promise<AdmNode>((resolve) => {
-      const ticker = setInterval(() => {
-        let node
-        try {
-          node = this.useFastest ? this.getFastestNode() : this.getRandomNode()
-          if (node) {
-            clearInterval(ticker)
-            resolve(node)
-          }
-        } catch (e) {
-          console.error(e)
+    return this.getNode()
+      .request(config)
+      .catch((error) => {
+        if (isNodeOfflineError(error)) {
+          // Initiate nodes status check
+          this.checkHealth()
+          // If the selected node is not available, repeat the request with another one.
+          return this.request(config)
         }
-      }, CHECK_ONLINE_NODE_INTERVAL)
-    })
+        throw error
+      })
   }
 
   async getHeight() {

src/lib/nodes/utils/errors.ts

@@ -2,7 +2,8 @@ import { NodeType } from '@/lib/nodes/types'
 
 const CODES = {
   NODE_OFFLINE: 'NODE_OFFLINE',
-  ALL_NODES_OFFLINE: 'ALL_NODES_OFFLINE'
+  ALL_NODES_OFFLINE: 'ALL_NODES_OFFLINE',
+  ALL_NODES_DISABLED: 'ALL_NODES_DISABLED'
 } as const
 
 /**
@@ -47,3 +48,18 @@ export class AllNodesOfflineError extends Error {
 export function isAllNodesOfflineError(error: Error): error is AllNodesOfflineError {
   return (error as AllNodesOfflineError).code === CODES.ALL_NODES_OFFLINE
 }
+
+export class AllNodesDisabledError extends Error {
+  code = CODES.ALL_NODES_DISABLED
+  nodeLabel: NodeType
+
+  constructor(label: NodeType) {
+    super(`${label}: All nodes are disabled`)
+
+    this.nodeLabel = label
+  }
+}
+
+export function isAllNodesDisabledError(error: Error): error is AllNodesDisabledError {
+  return (error as AllNodesDisabledError).code === CODES.ALL_NODES_DISABLED
+}

src/locales/en.json

@@ -99,7 +99,8 @@
   "error": "Error",
   "errors": {
     "something_went_wrong": "Something went wrong. Check the console for details",
-    "all_nodes_offline": "All {crypto} nodes are offline. Try again later"
+    "all_nodes_offline": "All {crypto} nodes are offline. Try again later",
+    "all_nodes_disabled": "All {crypto} nodes are disabled. Please enable at least one node to continue using the Messenger"
   },
   "home": {
     "balance": "Balance",

src/locales/ru.json

@@ -99,7 +99,8 @@
   "error": "Ошибка",
   "errors": {
     "something_went_wrong": "Что-то пошло не так. Детали ошибки в консоли",
-    "all_nodes_offline": "Все {crypto} ноды недоступны. Попробуйте позже"
+    "all_nodes_offline": "Все {crypto} ноды недоступны. Попробуйте позже",
+    "all_nodes_disabled": "Все {crypto} ноды отключены. Пожалуйста, включите хотя бы один узел, чтобы продолжить пользоваться мессенджером"
   },
   "home": {
     "balance": "Баланс",

src/views/Login.vue

@@ -154,7 +154,8 @@ export default defineComponent({
     }
     const onLoginError = (key) => {
       store.dispatch('snackbar/show', {
-        message: t(key)
+        message: t(key),
+        timeout: 3000
       })
     }
     const onCopyPassphrase = () => {