fixup! feat: add stake pools service

Author: iccicci

packages/cardano/src/wallet/lib/stakePoolService.ts

@@ -227,17 +227,17 @@ export const initStakePoolService = (props: StakePoolServiceProps): StakePoolPro
   let cachedData: Promise<StakePoolCachedData>;
   let fetchingData = false;
   let healthStatus = false;
-  let index: Fuse<{ id: Cardano.PoolId }>;
+  let fuzzyIndex: Fuse<{ id: Cardano.PoolId }>;
 
-  const createIndex = (stakePools: Cardano.StakePool[]) => {
+  const createFuzzyIndex = (stakePools: Cardano.StakePool[]) => {
     const data = stakePools.map(({ id, metadata }) => {
       // metadata from BlockFrost API has more fields than required, extracting only the relevant ones to keep cache size small
       const { description, homepage, name, ticker } = metadata || {};
 
       return { description, homepage, id, name, ticker };
     });
 
-    index = new Fuse(data, FUZZY_SEARCH_OPTIONS, Fuse.createIndex(FUZZY_SEARCH_OPTIONS.keys, data));
+    fuzzyIndex = new Fuse(data, FUZZY_SEARCH_OPTIONS, Fuse.createIndex(FUZZY_SEARCH_OPTIONS.keys, data));
   };
 
   const saveData = (data: StakePoolCachedData) => {
@@ -296,7 +296,7 @@ export const initStakePoolService = (props: StakePoolServiceProps): StakePoolPro
         stats: { qty: { activating: 0, active, retired: 0, retiring: retiringPools.length } }
       };
 
-      createIndex(stakePools);
+      createFuzzyIndex(stakePools);
       saveData(data);
       cachedData = Promise.resolve(data);
       healthStatus = true;
@@ -353,10 +353,10 @@ export const initStakePoolService = (props: StakePoolServiceProps): StakePoolPro
     if (pledgeMet) result = result.filter((pool) => pool.pledge <= (pool.metrics?.stake.live || BigInt(0)));
 
     if (text) {
-      const fuzzy = index.search(text);
+      const fuzzyResult = fuzzyIndex.search(text);
       const idMap = new Map(result.map((pool) => [pool.id, pool]));
 
-      result = fuzzy.map(({ item: { id } }) => idMap.get(id)).filter(Boolean) as Cardano.StakePool[];
+      result = fuzzyResult.map(({ item: { id } }) => idMap.get(id)).filter(Boolean) as Cardano.StakePool[];
     }
 
     if (sort) result.sort(getSorter(sort));
@@ -378,8 +378,9 @@ export const initStakePoolService = (props: StakePoolServiceProps): StakePoolPro
       // If the cache is present but expired, fetch the data in a fire and forget way.
       if (data.lastFetchTime < Date.now() - ONE_DAY) fetchData().catch(console.error);
 
-      // Create the index to make the fuzzy search to work against cached data.
-      createIndex(data.stakePools);
+      // If the cache is present, create the index to make the fuzzy search to work against cached data.
+      // The fuzzy index is an in memory Fuse object which can't be serialized and saved in the local storage with the cache.
+      createFuzzyIndex(data.stakePools);
     }
 
     healthStatus = true;