feat: Pin Kusama (#171)

packages/frontend/src/App.tsx

@@ -3,7 +3,7 @@ import { Types, SortedCollection } from '@dotstats/common';
 import { AllChains, Chains, Chain, Ago, OfflineIndicator } from './components';
 import { Connection } from './Connection';
 import { PersistentObject, PersistentSet } from './persist';
-import { State, Node, ChainData } from './state';
+import { State, Node, ChainData, PINNED_CHAIN } from './state';
 import { getHashData } from './utils';
 import stable from 'stable';
 
@@ -158,11 +158,11 @@ export default class App extends React.Component<{}, State> {
       .inplace(
         Array.from(this.state.chains.entries()),
         (a, b) => {
-          if (a[0] === 'Alexander') {
+          if (a[0] === PINNED_CHAIN) {
             return -1;
           }
 
-          if (b[0] === 'Alexander') {
+          if (b[0] === PINNED_CHAIN) {
             return 1;
           }
 

packages/frontend/src/Connection.ts

@@ -1,5 +1,5 @@
 import { VERSION, timestamp, FeedMessage, Types, Maybe, sleep } from '@dotstats/common';
-import { State, Update, Node, UpdateBound } from './state';
+import { State, Update, Node, UpdateBound, PINNED_CHAIN } from './state';
 import { PersistentSet } from './persist';
 import { getHashData, setHashData } from './utils';
 import { AfgHandling } from './AfgHandling';
@@ -416,7 +416,7 @@ export class Connection {
     let topCount: Types.NodeCount = 0 as Types.NodeCount;
 
     for (const [label, count] of chains.entries()) {
-      if (label === 'Alexander') {
+      if (label === PINNED_CHAIN) {
         topLabel = label;
         break;
       }

packages/frontend/src/state.ts

@@ -1,5 +1,7 @@
 import { Types, Maybe, SortedCollection } from '@dotstats/common';
 
+export const PINNED_CHAIN = 'Kusama CC1';
+
 export class Node {
   public static compare(a: Node, b: Node): number {
     if (a.pinned === b.pinned && a.stale === b.stale) {