public/js/app_user-stat.js

@@ -1,5 +1,7 @@
 window.onload = async function () {
     const token = localStorage.getItem('auth_token');
+    let winnersCache = null;
+    let completionsCache = null;
 
     async function fetchActiveYear() {
       try {
@@ -172,6 +174,11 @@ window.onload = async function () {
         fetchCompletions(),
       ]);
 
+      winnersCache = winners;
+      completionsCache = completions;
+      renderWinners(winnersCache);
+      renderCompletions(completionsCache);
+
       if (!statsRes.ok) {
         throw new Error('Failed to fetch user stats');
       }
@@ -180,9 +187,7 @@ window.onload = async function () {
       const userTableBody = document.getElementById('user-table-body');
       const table = document.querySelector('.user-table');
       const spinner = document.getElementById('loading-spinner');
-
-      renderWinners(winners);
-      renderCompletions(completions);
+      const statsError = document.getElementById('stats-error');
 
       // Ensure watchedRatio is treated as a number and sort in descending order
       stats.sort((a, b) => parseFloat(b.watchedRatio) - parseFloat(a.watchedRatio));
@@ -205,6 +210,7 @@ window.onload = async function () {
       // Hide spinner and show table after loading
       spinner.style.display = 'none';
       table.style.display = 'table';
+      if (statsError) statsError.classList.add('d-none');
 
       // Add event listener for user links
       document.querySelectorAll('.user-link').forEach(link => {
@@ -233,9 +239,24 @@ window.onload = async function () {
       });
     } catch (error) {
       console.error('Error loading user statistics:', error);
+      const spinner = document.getElementById('loading-spinner');
+      const table = document.querySelector('.user-table');
+      const statsError = document.getElementById('stats-error');
+      if (spinner) spinner.style.display = 'none';
+      if (table) table.style.display = 'none';
+      if (statsError) {
+        statsError.textContent = "Impossible de charger le classement pour le moment.";
+        statsError.classList.remove('d-none');
+      }
       // Still attempt to render these sections even if stats fail (best effort)
-      try { renderWinners(await fetchWinners()); } catch (_) {}
-      try { renderCompletions(await fetchCompletions()); } catch (_) {}
+      try {
+        if (winnersCache === null) winnersCache = await fetchWinners();
+        renderWinners(winnersCache);
+      } catch (_) {}
+      try {
+        if (completionsCache === null) completionsCache = await fetchCompletions();
+        renderCompletions(completionsCache);
+      } catch (_) {}
     }
 
     // Log-off functionality

public/user-stat.html

@@ -30,6 +30,14 @@
     .navbar-toggler-icon {
       background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='white' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
     }
+
+    /* Stats tabs */
+    .stats-tabs .nav-link {
+      font-weight: 600;
+    }
+    .stats-tab-panel {
+      padding-top: 1rem;
+    }
   </style>
 </head>
 <body class="bg-light">
@@ -62,23 +70,29 @@
 <div class="container mt-5">
   <h2>Statistiques des utilisateurs</h2>
 
-  <!-- Winners section -->
-  <div class="mt-4">
-    <h4 class="mb-2">Gagnants</h4>
-    <div class="text-muted mb-2">Définis dans l’admin (optionnel).</div>
-    <div id="winners-list" class="list-group mb-4">
-      <div class="list-group-item text-muted">Chargement…</div>
-    </div>
-  </div>
+  <!-- Tabs -->
+  <ul class="nav nav-tabs stats-tabs mt-3" id="statsTabs" role="tablist">
+    <li class="nav-item" role="presentation">
+      <button class="nav-link active" id="tab-ranking" data-bs-toggle="tab" data-bs-target="#pane-ranking" type="button" role="tab" aria-controls="pane-ranking" aria-selected="true">
+        Classement
+      </button>
+    </li>
+    <li class="nav-item" role="presentation">
+      <button class="nav-link" id="tab-winners" data-bs-toggle="tab" data-bs-target="#pane-winners" type="button" role="tab" aria-controls="pane-winners" aria-selected="false">
+        Gagnants
+      </button>
+    </li>
+    <li class="nav-item" role="presentation">
+      <button class="nav-link" id="tab-completion" data-bs-toggle="tab" data-bs-target="#pane-completion" type="button" role="tab" aria-controls="pane-completion" aria-selected="false">
+        100%
+      </button>
+    </li>
+  </ul>
 
-  <!-- 100% completers section -->
-  <div class="mt-4">
-    <h4 class="mb-2">Utilisateurs ayant terminé 100% (par année)</h4>
-    <div class="text-muted mb-2">Completion = 100% pour l’année (tous les films de l’année vus).</div>
-    <div id="completers-by-year" class="mb-4">
-      <div class="text-muted">Chargement…</div>
-    </div>
-  </div>
+  <div class="tab-content stats-tab-panel" id="statsTabsContent">
+    <!-- Ranking tab -->
+    <div class="tab-pane fade show active" id="pane-ranking" role="tabpanel" aria-labelledby="tab-ranking" tabindex="0">
+      <div id="stats-error" class="alert alert-danger d-none" role="alert"></div>
 
       <!-- Spinner shown while loading -->
       <div id="loading-spinner" class="spinner-border text-primary" role="status">
@@ -100,6 +114,26 @@
       </table>
     </div>
 
+    <!-- Winners tab -->
+    <div class="tab-pane fade" id="pane-winners" role="tabpanel" aria-labelledby="tab-winners" tabindex="0">
+      <h4 class="mb-2">Gagnants</h4>
+      <div class="text-muted mb-2">Définis dans l’admin (optionnel).</div>
+      <div id="winners-list" class="list-group mb-4">
+        <div class="list-group-item text-muted">Chargement…</div>
+      </div>
+    </div>
+
+    <!-- 100% completers tab -->
+    <div class="tab-pane fade" id="pane-completion" role="tabpanel" aria-labelledby="tab-completion" tabindex="0">
+      <h4 class="mb-2">Utilisateurs ayant terminé 100% (par année)</h4>
+      <div class="text-muted mb-2">Completion = 100% pour l’année (tous les films de l’année vus).</div>
+      <div id="completers-by-year" class="mb-4">
+        <div class="text-muted">Chargement…</div>
+      </div>
+    </div>
+  </div>
+</div>
+
 <!-- Modal for displaying movies watched -->
 <div class="modal fade" id="moviesModal" tabindex="-1" aria-labelledby="moviesModalLabel" aria-hidden="true">
   <div class="modal-dialog">