feat: filtre par catégorie dans la GUI

- arte_api.py : GENRE_PAGES devient une liste de (nom, url), chaque
  concert reçoit un champ "categories" avec ses genres d'appartenance
- main.py : endpoint /api/categories + param ?category= sur /api/concerts
- index.html : barre de pills catégories (Tout + 10 genres)
- style.css : styles .cat-bar / .cat-pill avec pill active en or
- app.js : chargement dynamique des pills, filtre catégorie dans le state

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

arte_api.py

@@ -16,21 +16,25 @@ PLAYER_API = "https://api.arte.tv/api/player/v2/config/fr/{pid}"
 SEARCH_URL = "https://www.arte.tv/fr/search/?q={q}"
 
 GENRE_PAGES = [
-    "https://www.arte.tv/fr/p/pop-rock/",
+    ("Pop & Rock",       "https://www.arte.tv/fr/p/pop-rock/"),
-    "https://www.arte.tv/fr/p/classique/",
+    ("Classique",        "https://www.arte.tv/fr/p/classique/"),
-    "https://www.arte.tv/fr/p/musiques-electroniques/",
+    ("Electro",          "https://www.arte.tv/fr/p/musiques-electroniques/"),
-    "https://www.arte.tv/fr/p/jazz",
+    ("Jazz",             "https://www.arte.tv/fr/p/jazz"),
-    "https://www.arte.tv/fr/p/arts-de-la-scene",
+    ("Arts de la scène", "https://www.arte.tv/fr/p/arts-de-la-scene"),
-    "https://www.arte.tv/fr/p/hip-hop",
+    ("Hip-hop",          "https://www.arte.tv/fr/p/hip-hop"),
-    "https://www.arte.tv/fr/p/metal",
+    ("Metal",            "https://www.arte.tv/fr/p/metal"),
-    "https://www.arte.tv/fr/p/opera",
+    ("Opéra",            "https://www.arte.tv/fr/p/opera"),
-    "https://www.arte.tv/fr/p/world",
+    ("World",            "https://www.arte.tv/fr/p/world"),
-    "https://www.arte.tv/fr/p/musique-baroque/",
+    ("Baroque",          "https://www.arte.tv/fr/p/musique-baroque/"),
-    # arte-concert pages pour l'agenda et contenu exclusif
+]
+
+EXTRA_PAGES = [
     "https://www.arte.tv/fr/arte-concert/agenda/",
     "https://www.arte.tv/fr/arte-concert/",
 ]
 
+CATEGORIES = [name for name, _ in GENRE_PAGES]
+
 _HEADERS = {
     "User-Agent": (
         "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 "
@@ -88,14 +92,23 @@ def _metadata_for_pid(pid: str) -> dict | None:
 
 
 def _fetch_all_sync() -> list[dict]:
-    all_ids: set[str] = set()
+    id_cats: dict[str, list[str]] = {}
-    for url in GENRE_PAGES:
+    for name, url in GENRE_PAGES:
+        ids = _prog_ids_from_page(url)
+        logger.info("  %s → %d IDs", name, len(ids))
+        for pid in ids:
+            id_cats.setdefault(pid, []).append(name)
+
+    all_ids: set[str] = set(id_cats)
+    for url in EXTRA_PAGES:
         ids = _prog_ids_from_page(url)
         logger.info("  %s → %d IDs", url.split("/fr/")[1], len(ids))
         all_ids |= ids
     logger.info("Total unique programme IDs: %d", len(all_ids))
 
     concerts = _resolve_ids(all_ids)
+    for c in concerts:
+        c["categories"] = id_cats.get(c["id"], [])
     concerts.sort(key=lambda c: c.get("expiry") or "", reverse=True)
     return concerts
 
@@ -131,26 +144,29 @@ async def get_all_concerts() -> list[dict]:
     return _cache["data"]
 
 
-async def fetch_concerts(page: int = 1, search: str = "", page_size: int = 24) -> dict:
+async def fetch_concerts(page: int = 1, search: str = "", page_size: int = 24, category: str = "") -> dict:
     all_c = await get_all_concerts()
+
+    if category:
+        all_c = [c for c in all_c if category in (c.get("categories") or [])]
+
     cached_ids = {c["id"] for c in all_c}
 
     if search:
         q = search.lower()
-        # local filter
         local = [
             c for c in all_c
             if q in (c.get("title") or "").lower()
             or q in (c.get("subtitle") or "").lower()
             or q in (c.get("description") or "").lower()
         ]
-        # Arte search for IDs not in cache
+        # Remote search only when no category filter (results have no category info)
+        if not category:
             loop = asyncio.get_event_loop()
             remote_ids = await loop.run_in_executor(None, _search_sync, search)
             new_ids = remote_ids - cached_ids
             if new_ids:
                 extra = await loop.run_in_executor(None, _resolve_ids, new_ids, None)
-            # merge: local results first, then extras not already present
                 local_ids = {c["id"] for c in local}
                 for c in extra:
                     if c["id"] not in local_ids:

main.py

@@ -8,7 +8,7 @@ from fastapi.staticfiles import StaticFiles
 from fastapi.templating import Jinja2Templates
 from pydantic import BaseModel
 
-from arte_api import fetch_concerts, invalidate_cache
+from arte_api import fetch_concerts, invalidate_cache, CATEGORIES
 from downloader import DownloadManager
 
 logging.basicConfig(level=logging.INFO)
@@ -31,9 +31,14 @@ async def index(request: Request):
 # ------------------------------------------------------------------ API: concerts
 
 
+@app.get("/api/categories")
+async def api_categories():
+    return CATEGORIES
+
+
 @app.get("/api/concerts")
-async def api_concerts(page: int = 1, search: str = "", page_size: int = 24):
+async def api_concerts(page: int = 1, search: str = "", page_size: int = 24, category: str = ""):
-    return await fetch_concerts(page=page, search=search, page_size=page_size)
+    return await fetch_concerts(page=page, search=search, page_size=page_size, category=category)
 
 
 @app.post("/api/refresh")

static/app.js

@@ -4,6 +4,7 @@
 const state = {
   page: 1,
   search: '',
+  category: '',
   pageSize: 24,
   totalPages: 1,
   current: null,       // concert object shown in modal
@@ -21,6 +22,7 @@ const modalOverlay = $('modal-overlay');
 const dlPanel     = $('dl-panel');
 const dlPanelBody = $('dl-panel-body');
 const dlBadge     = $('dl-badge');
+const catBar      = $('cat-bar');
 
 // ── Helpers ──────────────────────────────────────────────────────────────────
 function fmtDuration(secs) {
@@ -45,12 +47,37 @@ function debounce(fn, ms) {
   let t; return (...a) => { clearTimeout(t); t = setTimeout(() => fn(...a), ms); };
 }
 
+// ── Categories ───────────────────────────────────────────────────────────────
+async function loadCategories() {
+  try {
+    const cats = await fetch('/api/categories').then(r => r.json());
+    cats.forEach(cat => {
+      const btn = document.createElement('button');
+      btn.className = 'cat-pill';
+      btn.dataset.cat = cat;
+      btn.textContent = cat;
+      catBar.appendChild(btn);
+    });
+  } catch {}
+}
+
+catBar.addEventListener('click', e => {
+  const pill = e.target.closest('.cat-pill');
+  if (!pill) return;
+  catBar.querySelectorAll('.cat-pill').forEach(p => p.classList.remove('active'));
+  pill.classList.add('active');
+  state.category = pill.dataset.cat;
+  state.page = 1;
+  refresh();
+});
+
 // ── Concerts ─────────────────────────────────────────────────────────────────
 async function loadConcerts() {
   const params = new URLSearchParams({
     page: state.page,
     search: state.search,
     page_size: state.pageSize,
+    category: state.category,
   });
   const res = await fetch(`/api/concerts?${params}`);
   if (!res.ok) throw new Error(res.statusText);
@@ -359,6 +386,6 @@ document.addEventListener('keydown', e => {
 
 // ── Init ─────────────────────────────────────────────────────────────────────
 (async () => {
-  await refreshDlHistory();
+  await Promise.all([loadCategories(), refreshDlHistory()]);
   await refresh();
 })();

static/style.css

@@ -195,6 +195,45 @@ body {
   letter-spacing: 0.02em;
 }
 
+/* ══ CATEGORY BAR ══════════════════════════════════════════════════════════ */
+.cat-bar {
+  display: flex;
+  gap: 8px;
+  margin-bottom: 20px;
+  overflow-x: auto;
+  scrollbar-width: none;
+  -ms-overflow-style: none;
+  padding-bottom: 2px;
+}
+
+.cat-bar::-webkit-scrollbar { display: none; }
+
+.cat-pill {
+  background: var(--surface);
+  border: 1px solid var(--border);
+  border-radius: 20px;
+  color: var(--text-dim);
+  cursor: pointer;
+  font-family: 'Inter', sans-serif;
+  font-size: 13px;
+  padding: 6px 16px;
+  white-space: nowrap;
+  transition: color var(--transition), border-color var(--transition), background var(--transition);
+  flex-shrink: 0;
+}
+
+.cat-pill:hover {
+  color: var(--text);
+  border-color: rgba(255,255,255,0.15);
+}
+
+.cat-pill.active {
+  background: var(--gold);
+  border-color: var(--gold);
+  color: #000;
+  font-weight: 600;
+}
+
 /* ══ GRID ══════════════════════════════════════════════════════════════════ */
 .grid {
   display: grid;

templates/index.html

@@ -52,6 +52,11 @@
 <!-- ══ MAIN ═══════════════════════════════════════════════════════════════ -->
 <main class="main">
 
+  <!-- categories -->
+  <div class="cat-bar" id="cat-bar">
+    <button class="cat-pill active" data-cat="">Tout</button>
+  </div>
+
   <!-- status bar -->
   <div class="status-bar" id="status-bar">
     <span id="status-text">Chargement du catalogue…</span>