guard if statedb empty (#8332)

* guard if statedb empty

* update market-page-search snapshot

.changeset/smart-items-laugh.md

@@ -0,0 +1,6 @@
+---
+"live-mobile": patch
+"@ledgerhq/live-common": patch
+---
+
+fix: better logic and guard against accessing null db

apps/ledger-live-mobile/src/components/Web3AppWebview/helpers.ts

@@ -175,17 +175,16 @@ export function useWebView(
   }, []);
 
   useEffect(() => {
-    const latestCacheBustedId = getLatest(manifest.id);
-    const init = getLatest("init");
-    // checking for init, which is set in INITIAL_PLATFORM_STATE
-    // makes sure we're not just getting the default value, undefined
-    if (
-      webviewRef.current &&
-      init &&
-      manifest.cacheBustingId !== undefined &&
-      manifest.cacheBustingId > (latestCacheBustedId || 0)
-    ) {
-      if (webviewRef.current.clearCache) {
+    if (webviewRef && webviewRef.current && manifest.cacheBustingId !== undefined) {
+      const latestCacheBustedId = getLatest(manifest.id);
+      const init = getLatest("init");
+      // checking for init, which is set in INITIAL_PLATFORM_STATE
+      // makes sure we're not just getting the default value, undefined
+      if (
+        init &&
+        manifest.cacheBustingId > (latestCacheBustedId || 0) &&
+        webviewRef.current.clearCache
+      ) {
         // save the latest cacheBustedId to the DiscoverDB
         // to avoid clearingCache everytime this liveApp is loaded
         edit(manifest.id, manifest.cacheBustingId);

libs/ledger-live-common/src/wallet-api/react.ts

@@ -1015,7 +1015,7 @@ function calculateTimeDiff(usedAt: string) {
 export function useCacheBustedLiveApps([cacheBustedLiveAppsDb, setState]: CacheBustedLiveAppsdDB) {
   const getLatest = useCallback(
     (manifestId: string) => {
-      return cacheBustedLiveAppsDb[manifestId];
+      return cacheBustedLiveAppsDb?.[manifestId];
     },
     [cacheBustedLiveAppsDb],
   );