feat: Add batch download for entire anime seasons

Add ability to download all episodes of a season with one click.

Backend changes:
- New POST /api/anime/download-season endpoint
- Retrieves all episodes and creates download tasks for each
- Returns list of task IDs and total episode count

Frontend changes:
- Add "Toute la saison" button next to episode selector
- Button shown immediately when episodes are loaded
- Confirmation dialog before starting batch download
- Success message showing number of episodes queued

Features:
- Respects max_parallel limit (default: 3 concurrent downloads)
- Proper episode naming (e.g., "Hells Paradise - Episode 01.mp4")
- Works with all anime providers (Anime-Sama, Anime-Ultime, etc.)

Example usage:
- Click "Toute la saison" button on any anime card
- Confirm the dialog
- All episodes are queued and download automatically

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

main.py

@@ -259,6 +259,36 @@ async def download_anime_episode(
     return {"task_id": task.id, "task": task}
 
 
+@app.post("/api/anime/download-season")
+async def download_anime_season(
+    url: str,
+    background_tasks: BackgroundTasks,
+    lang: str = "vostfr"
+):
+    """Download all episodes of an anime season"""
+    from app.downloaders import get_downloader
+
+    downloader = get_downloader(url)
+    episodes = await downloader.get_episodes(url, lang)
+
+    if not episodes:
+        raise HTTPException(status_code=404, detail="No episodes found")
+
+    # Create download tasks for all episodes
+    task_ids = []
+    for episode in episodes:
+        request = DownloadRequest(url=episode['url'])
+        task = download_manager.create_task(request)
+        task_ids.append(task.id)
+        background_tasks.add_task(download_manager.start_download, task.id)
+
+    return {
+        "message": f"Started downloading {len(task_ids)} episodes",
+        "task_ids": task_ids,
+        "total_episodes": len(episodes)
+    }
+
+
 # Video Streaming endpoints
 @app.get("/video/{task_id}")
 async def stream_video(task_id: str, request: Request):

templates/index.html

@@ -645,6 +645,12 @@
                                         </svg>
                                         Télécharger
                                     </button>
+                                    <button class="btn-primary" style="background: linear-gradient(45deg, #ff6b6b, #ffa500);" onclick="downloadEntireSeason('${encodeURIComponent(anime.url)}', '${lang}')" title="Télécharger toute la saison">
+                                        <svg fill="none" stroke="currentColor" viewBox="0 0 24 24" style="width:14px;height:14px;margin-right:4px;">
+                                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-8l-4-4m0 0L8 8m4-4v12"></path>
+                                        </svg>
+                                        Toute la saison
+                                    </button>
                                 </div>
                             </div>
                         `;
@@ -690,15 +696,9 @@
                         selectElement.appendChild(option);
                     });
 
-                    // Show download button when episode is selected
-                    selectElement.onchange = () => {
+                    // Show download buttons immediately (season button is always useful)
                     const actionsDiv = document.getElementById(actionsId);
-                        if (selectElement.value) {
                     actionsDiv.style.display = 'flex';
-                        } else {
-                            actionsDiv.style.display = 'none';
-                        }
-                    };
 
                     // Store the selected episode URL for download
                     selectElement.dataset.animeUrl = url;
@@ -754,6 +754,32 @@
             }
         }
 
+        async function downloadEntireSeason(encodedUrl, lang) {
+            const url = decodeURIComponent(encodedUrl);
+
+            if (!confirm(`⚠️ Attention: Vous allez télécharger toute la saison. Cela peut prendre du temps et utiliser beaucoup d'espace disque.\n\nVoulez-vous continuer ?`)) {
+                return;
+            }
+
+            try {
+                const response = await fetch(`${API_BASE}/anime/download-season?url=${encodeURIComponent(url)}&lang=${lang}`, {
+                    method: 'POST'
+                });
+
+                if (response.ok) {
+                    const data = await response.json();
+                    loadDownloads();
+                    alert(`✅ ${data.message}\n\n${data.total_episodes} épisodes ont été ajoutés à la file de téléchargement!`);
+                } else {
+                    const error = await response.json();
+                    alert(`Erreur: ${error.detail || 'Impossible de démarrer le téléchargement de la saison'}`);
+                }
+            } catch (error) {
+                console.error('Error:', error);
+                alert('Erreur lors du démarrage du téléchargement de la saison');
+            }
+        }
+
         async function getProvidersInfo() {
             if (!searchResultsCache.providers) {
                 const response = await fetch(`${API_BASE}/providers`);