Fix stale GitHub data persistence after failed fetches

src/hooks/useGitHubData.ts

@@ -34,17 +34,46 @@ export const useGitHubData = (getOctokit: () => any) => {
 
       setLoading(true);
       setError('');
+      setIssues([]);
+      setPrs([]);
+      setTotalIssues(0);
+      setTotalPrs(0);
 
       try {
-        const [issueRes, prRes] = await Promise.all([
+        const [issueRes, prRes] = await Promise.allSettled([
           fetchPaginated(octokit, username, 'issue', page, perPage),
           fetchPaginated(octokit, username, 'pr', page, perPage),
         ]);
 
-        setIssues(issueRes.items);
-        setPrs(prRes.items);
-        setTotalIssues(issueRes.total);
-        setTotalPrs(prRes.total);
+        if (issueRes.status === 'fulfilled') {
+          setIssues(issueRes.value.items);
+          setTotalIssues(issueRes.value.total);
+        }
+
+        if (prRes.status === 'fulfilled') {
+          setPrs(prRes.value.items);
+          setTotalPrs(prRes.value.total);
+        }
+
+        if (
+          issueRes.status === 'rejected' &&
+          prRes.status === 'rejected'
+        ) {
+          const error =
+            issueRes.reason ??
+            prRes.reason ??
+            new Error('Failed to fetch GitHub data');
+
+          throw error;
+        }
+
+        if (
+          issueRes.status === 'rejected' ||
+          prRes.status === 'rejected'
+        ) {
+          setError('Some GitHub data could not be fetched completely.');
+        }
+
         setRateLimited(false);
       } catch (err: any) {
         const errorMessage = err.message?.toLowerCase() || "";
@@ -53,14 +82,16 @@ export const useGitHubData = (getOctokit: () => any) => {
           setRateLimited(true); 
         } else if (errorMessage.includes("do not exist")){
           setError('User not found. Please check the spelling of the GitHub username.');
-        } else if (err.status === 401 || errorMessage.includes("permission")){
+        } 
+        else if (errorMessage.includes("validation failed")) {
+          setError('Invalid GitHub username or insufficient permissions.');
+        }
+        else if (err.status === 401 || errorMessage.includes("permission")){
           setError('Private repository detected. Please input PAT.');
         }else if(err.status===404){
           setError('Resource not found.');
         }
-        else if (errorMessage.includes("validation failed")) {
-          setError('Invalid GitHub username or insufficient permissions.');
-        }
+
         else {
           setError(
             'Unable to fetch GitHub data. Please verify the username, token, or network connection.'