feat(#3230): redirect to outcomes from voting pillar

CHANGELOG.md

@@ -12,6 +12,8 @@ changes.
 
 ### Added
 
+- Add redirection to outcomes when proposal is not found [Issue 3230](https://github.com/IntersectMBO/govtool/issues/3230)
+
 ### Fixed
 
 - Fix post-vote navigation to governance action list [Issue 3242](https://github.com/IntersectMBO/govtool/issues/3242)

govtool/frontend/src/components/organisms/DashboardGovernanceActionDetails.tsx

@@ -1,12 +1,14 @@
+import { useEffect } from "react";
 import {
   useNavigate,
   useLocation,
   useParams,
   generatePath,
 } from "react-router-dom";
 import { Box, CircularProgress, Link, Typography } from "@mui/material";
+import { AxiosError } from "axios";
 
-import { ICONS, PATHS } from "@consts";
+import { ICONS, OUTCOMES_PATHS, PATHS } from "@consts";
 import { useCardano } from "@context";
 import {
   useGetProposalQuery,
@@ -42,13 +44,24 @@ export const DashboardGovernanceActionDetails = () => {
   const shortenedGovActionId =
     txHash && getShortenedGovActionId(txHash, +index);
 
-  const { data, isLoading } = useGetProposalQuery(
+  const { data, isLoading, error } = useGetProposalQuery(
     fullProposalId ?? "",
     !state?.proposal || !state?.vote,
   );
   const proposal = (data ?? state)?.proposal;
   const vote = (data ?? state)?.vote;
 
+  useEffect(() => {
+    const isProposalNotFound =
+      (error as AxiosError)?.response?.data ===
+      `Proposal with id: ${fullProposalId} not found`;
+    if (isProposalNotFound && fullProposalId) {
+      navigate(
+        OUTCOMES_PATHS.governanceActionOutcomes.replace(":id", fullProposalId),
+      );
+    }
+  }, [error]);
+
   return (
     <Box
       px={isMobile ? 2 : 4}

govtool/frontend/src/hooks/queries/useGetProposalQuery.ts

@@ -7,7 +7,7 @@ import { getProposal } from "@services";
 export const useGetProposalQuery = (proposalId: string, enabled?: boolean) => {
   const { dRepID } = useCardano();
 
-  const { data, isLoading, refetch, isRefetching } = useQuery(
+  const { data, isLoading, refetch, isRefetching, error } = useQuery(
     [QUERY_KEYS.useGetProposalKey, dRepID, proposalId],
     () => getProposal(proposalId, dRepID),
     {
@@ -21,5 +21,6 @@ export const useGetProposalQuery = (proposalId: string, enabled?: boolean) => {
     isLoading,
     refetch,
     isFetching: isRefetching,
+    error,
   };
 };