feat:migliorato pulsanti voto per poter votare piu volte

Co-authored-by: Copilot <copilot@github.com>

frontend-BriefAI/src/components/FeedContent.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useState } from 'react'
 import MagicCard from './MagicCard'
 import { fetchPersonalizedFeed } from '../services/feedService'
+import { sendFeedback } from '../services/feedbackService'
 import type { Article } from '../types/article'
 
 type FeedContentProps = {
@@ -11,6 +12,46 @@ type FeedContentProps = {
 function FeedContent({ sentimentFilter = null, topicsFilter = null }: FeedContentProps) {
   const [articles, setArticles] = useState<Article[]>([])
   const [status, setStatus] = useState<'loading' | 'ok' | 'error'>('loading')
+  const [voteByArticle, setVoteByArticle] = useState<Record<string, 1 | -1 | null>>({})
+  const [pendingByArticle, setPendingByArticle] = useState<Record<string, boolean>>({})
+  const [voteError, setVoteError] = useState<string | null>(null)
+
+  const sendVoteDelta = async (articleId: string, previousVote: 1 | -1 | null, nextVote: 1 | -1 | null) => {
+    // Without server idempotency, simulate undo by applying compensating vote.
+    if (previousVote === nextVote) return
+
+    if (previousVote === null && nextVote !== null) {
+      await sendFeedback(articleId, nextVote)
+      return
+    }
+
+    if (previousVote !== null && nextVote === null) {
+      await sendFeedback(articleId, previousVote === 1 ? -1 : 1)
+      return
+    }
+
+    if (previousVote !== null && nextVote !== null) {
+      await sendFeedback(articleId, nextVote)
+    }
+  }
+
+  const handleVoteChange = async (articleId: string, nextVote: 1 | -1 | null) => {
+    const previousVote = voteByArticle[articleId] ?? null
+    if (previousVote === nextVote || pendingByArticle[articleId]) return
+
+    setVoteError(null)
+    setVoteByArticle((prev) => ({ ...prev, [articleId]: nextVote }))
+    setPendingByArticle((prev) => ({ ...prev, [articleId]: true }))
+
+    try {
+      await sendVoteDelta(articleId, previousVote, nextVote)
+    } catch {
+      setVoteByArticle((prev) => ({ ...prev, [articleId]: previousVote }))
+      setVoteError('Impossibile aggiornare il voto. Riprova.')
+    } finally {
+      setPendingByArticle((prev) => ({ ...prev, [articleId]: false }))
+    }
+  }
 
 // Prende il fetch del feed personalizzato e popola la variabile di stato con i dati
   useEffect(() => {fetchPersonalizedFeed().then((data) => {
@@ -30,6 +71,7 @@ function FeedContent({ sentimentFilter = null, topicsFilter = null }: FeedConten
 {/* Gestione degli stati*/}
       {status === 'loading' && <p>Caricamento feed...</p>}
       {status === 'error' && <p>Errore nel caricamento del feed.</p>}
+      {voteError && <p className="feed-no-results">{voteError}</p>}
 {/*Render della lista di articoli se il caricamento è andato a buon fine*/}
       {status === 'ok' && (
         <>
@@ -78,6 +120,9 @@ function FeedContent({ sentimentFilter = null, topicsFilter = null }: FeedConten
                           summary={a.summary}
                           tags={a.macroTopics?.length ? a.macroTopics : (a.trendingTopics || [a.category])}
                           entities={a.entities || []}
+                          voteState={voteByArticle[a.uniqueKey] ?? null}
+                          votePending={pendingByArticle[a.uniqueKey] ?? false}
+                          onVoteChange={handleVoteChange}
                         />
                       ))}
                     </div>

frontend-BriefAI/src/components/MagicCard.tsx

@@ -1,6 +1,4 @@
 import type { ReactNode } from 'react'
-import { useState } from 'react'
-import { sendFeedback } from '../services/feedbackService'
 
 type MagicCardProps = {
   articleId?: string
@@ -12,16 +10,18 @@ type MagicCardProps = {
   summary: string
   tags: string[]
   entities: string[]
+  voteState: 1 | -1 | null
+  votePending?: boolean
+  onVoteChange: (articleId: string, nextVote: 1 | -1 | null) => void
 }
 
 // Card notizia: mostra fonte, sentiment, testo, tag, entità e azioni rapide.
-function MagicCard({ articleId, articleUrl, source, timeAgo, sentiment, title, summary, tags, entities }: MagicCardProps) {
-  const [voted, setVoted] = useState<1 | -1 | null>(null)
+function MagicCard({ articleId, articleUrl, source, timeAgo, sentiment, title, summary, tags, entities, voteState, votePending = false, onVoteChange }: MagicCardProps) {
+  const handleVote = (clickedVote: 1 | -1) => {
+    if (!articleId || votePending) return
 
-  const handleVote = (vote: 1 | -1) => {
-    if (voted !== null) return
-    setVoted(vote)
-    if (articleId) sendFeedback(articleId, vote)
+    const nextVote = voteState === clickedVote ? null : clickedVote
+    onVoteChange(articleId, nextVote)
   }
 
   return (
@@ -79,8 +79,8 @@ function MagicCard({ articleId, articleUrl, source, timeAgo, sentiment, title, s
           label="Mi piace"
           tone="like"
           onClick={() => handleVote(1)}
-          disabled={voted !== null}
-          style={{ opacity: voted === -1 ? 0.4 : 1 }}
+          disabled={votePending}
+          style={{ opacity: voteState === -1 ? 0.4 : 1 }}
         >
           <ThumbUpIcon />
         </ActionButton>
@@ -88,8 +88,8 @@ function MagicCard({ articleId, articleUrl, source, timeAgo, sentiment, title, s
           label="Non mi piace"
           tone="dislike"
           onClick={() => handleVote(-1)}
-          disabled={voted !== null}
-          style={{ opacity: voted === 1 ? 0.4 : 1 }}
+          disabled={votePending}
+          style={{ opacity: voteState === 1 ? 0.4 : 1 }}
         >
           <ThumbDownIcon />
         </ActionButton>

frontend-BriefAI/src/services/feedbackService.ts

@@ -1,21 +1,48 @@
 const N8N = import.meta.env.VITE_N8N_URL
+const FEEDBACK_TIMEOUT_MS = 5000
 
 export const sendFeedback = async (
   articleId: string,
   vote: 1 | -1
 ): Promise<void> => {
   const token = localStorage.getItem('briefai_token')
-  if (!token) return
+  if (!token) throw new Error('Token mancante')
 
-  const payload = JSON.parse(atob(token.split('.')[1]))
+  if (!N8N) throw new Error('VITE_N8N_URL non configurata')
 
-  await fetch(`${N8N}/briefai/feedback`, {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({
-      userId: payload.userId,
-      articleId,
-      vote,
-    }),
-  })
+  let payload: { userId?: string } | null = null
+  try {
+    payload = JSON.parse(atob(token.split('.')[1]))
+  } catch {
+    throw new Error('Token non valido')
+  }
+
+  if (!payload?.userId) throw new Error('userId non presente nel token')
+
+  const controller = new AbortController()
+  const timeoutId = setTimeout(() => controller.abort(), FEEDBACK_TIMEOUT_MS)
+
+  try {
+    const response = await fetch(`${N8N}/briefai/feedback`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
+        userId: payload.userId,
+        articleId,
+        vote,
+      }),
+      signal: controller.signal,
+    })
+
+    if (!response.ok) {
+      throw new Error(`Feedback HTTP ${response.status}`)
+    }
+  } catch (error) {
+    if (error instanceof Error && error.name === 'AbortError') {
+      throw new Error('Timeout feedback')
+    }
+    throw error
+  } finally {
+    clearTimeout(timeoutId)
+  }
 }