Add reset vote button

frontend/src/App.js

@@ -48,6 +48,7 @@ function App() {
           votedProposalId: voter.votedProposalId.toString()
         });
       } catch (error) {
+        console.log(error);
         // Si l'utilisateur n'est pas un électeur, une erreur est générée
         setIsVoter(false);
       }
@@ -87,6 +88,9 @@ function App() {
         case 'endProposalsRegistration':
           tx = await contract.endProposalsRegistration();
           break;
+        case 'resetVoting':
+          tx = await contract.resetVoting();
+          break;
         case 'startVotingSession':
           tx = await contract.startVotingSession(duration);
           break;
@@ -204,6 +208,13 @@ function App() {
     }
   };
 
+  // Réinitialisation d'un vote
+  const resetVote = async () => {
+    if (!contract || !isOwner) return;
+
+    handleWorkflowAction("resetVoting");
+  }
+
   // Délégation de vote
   const delegateVote = async (delegateAddress) => {
     if (!contract) return;
@@ -286,8 +297,10 @@ function App() {
             />
             
             <VotingSession 
+              isOwner={isOwner}
               isVoter={isVoter}
               submitVote={submitVote}
+              resetVote={resetVote}
               delegateVote={delegateVote}
               fetchVoterInfo={fetchVoterInfo}
               fetchProposals={fetchProposals}

frontend/src/components/VotingSession.js

 import React, { useState, useEffect } from 'react';
 import { ethers } from 'ethers';
 
-const VotingSession = ({ 
+const VotingSession = ({
+  isOwner,
   isVoter, 
   submitVote, 
   delegateVote,
@@ -10,7 +11,8 @@ const VotingSession = ({
   currentStatus, 
   proposals,
   loading,
-  voterInfo
+  voterInfo,
+  resetVote
 }) => {
   const [selectedProposal, setSelectedProposal] = useState(null);
   const [delegateAddress, setDelegateAddress] = useState('');
@@ -68,24 +70,33 @@ const VotingSession = ({
     return (
       <div className="card">
         <h2>Résultat du vote</h2>
-        <div className="winner-info">
-          <h3>Proposition gagnante :</h3>
-          <div className="proposal-item winner">
-            <strong>Proposition #{winningProposalId}:</strong> {winningProposal.description}
-            <div className="vote-count">
-              <span>{winningProposal.voteCount} vote(s)</span>
+        {isOwner && (
+            <button
+                className="button"
+                onClick={resetVote}
+                disabled={loading}
+            >
+              Nouveau vote
+            </button>
+            )}
+            <div className="winner-info">
+              <h3>Proposition gagnante :</h3>
+              <div className="proposal-item winner">
+                <strong>Proposition #{winningProposalId}:</strong> {winningProposal.description}
+                <div className="vote-count">
+                  <span>{winningProposal.voteCount} vote(s)</span>
+                </div>
+              </div>
             </div>
-          </div>
-        </div>
-      </div>
-    );
-  }
+            </div>
+        );
+        }
 
-  return (
-    <div className="card">
-      <h2>Session de vote</h2>
-      
-      {parseInt(currentStatus) === 3 && (
+        return (
+        <div className="card">
+          <h2>Session de vote</h2>
+
+          {parseInt(currentStatus) === 3 && (
         <>
           {!voterInfo.hasVoted ? (
             <div className="voter-actions">