feat: nommage UNFR -ReMoRa automatique après téléchargement

Format : Title.Event.Year.FRENCH.Resolution.WEBRip.x264|HEVC.AAC-ReMoRa.mp4

- build_release_name() : slugify avec strip accents, apostrophe→point,
  déduplique l'année si présente dans le titre ET passée séparément,
  détecte la résolution et le codec depuis les infos yt-dlp
- enqueue() : reçoit subtitle + year depuis l'API
- _run() : renomme le fichier après download, met à jour le filename en DB
- DownloadRequest : subtitle + year ajoutés
- app.js : extrait l'année du subtitle via regex avant d'envoyer la requête

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

downloader.py

@@ -1,5 +1,7 @@
+import re
 import sqlite3
 import threading
+import unicodedata
 import uuid
 from datetime import datetime
 from pathlib import Path
@@ -17,6 +19,67 @@ def _db():
     return conn
 
 
+# ── Release naming ─────────────────────────────────────────────────────────────
+
+def _slugify(s: str) -> str:
+    """Normalize a string to dot-separated scene-style slug."""
+    # Strip accents (NFD decompose then drop combining marks)
+    s = unicodedata.normalize("NFD", s)
+    s = "".join(c for c in s if unicodedata.category(c) != "Mn")
+    # Apostrophe before letter → .Letter (L'Amour → .L.Amour)
+    s = re.sub(r"['’]([A-Za-z])", lambda m: "." + m.group(1).upper(), s)
+    # Spaces / underscores → dot
+    s = re.sub(r"[\s_]+", ".", s)
+    # Keep only alphanumeric, dot, hyphen
+    s = re.sub(r"[^A-Za-z0-9.\-]", "", s)
+    # Collapse multiple dots
+    s = re.sub(r"\.{2,}", ".", s)
+    return s.strip(".")
+
+
+def build_release_name(title: str, subtitle: str, year: int | None, info: dict) -> str:
+    """
+    Build a proper UNFR/scene release name.
+    Format: Title.Event.Year.FRENCH.Resolution.WEBRip.x264.AAC-ReMoRa.mp4
+    """
+    # Strip year from both title and subtitle to avoid duplication
+    t = re.sub(r"\b" + str(year) + r"\b", "", title).strip() if year else title
+    name = _slugify(t)
+
+    sub = subtitle or ""
+    if year:
+        sub = re.sub(r"\b" + str(year) + r"\b", "", sub).strip()
+    sub_slug = _slugify(sub)
+    if sub_slug:
+        name = f"{name}.{sub_slug}"
+
+    year_str = str(year) if year else ""
+
+    # Resolution from yt-dlp info
+    height = info.get("height") or 0
+    if height >= 2160:
+        res = "2160p"
+    elif height >= 1080:
+        res = "1080p"
+    elif height >= 720:
+        res = "720p"
+    else:
+        res = f"{height}p" if height else "1080p"
+
+    # Video codec (avc1 = H.264, hev1/hvc1/hevc = H.265)
+    vcodec = (info.get("vcodec") or "").lower()
+    if "hevc" in vcodec or "h265" in vcodec or "hev1" in vcodec or "hvc1" in vcodec:
+        vc = "HEVC"
+    elif "avc" in vcodec or "h264" in vcodec:
+        vc = "x264"
+    else:
+        vc = "x264"
+
+    parts = [name, year_str, "FRENCH", res, "WEBRip", vc, "AAC"]
+    base = ".".join(p for p in parts if p)
+    return f"{base}-ReMoRa.mp4"
+
+
 class DownloadManager:
     def __init__(self):
         self._active: dict[str, dict] = {}
@@ -43,7 +106,8 @@ class DownloadManager:
 
     # ------------------------------------------------------------------ public
 
-    def enqueue(self, url: str, title: str, bg: BackgroundTasks) -> str:
+    def enqueue(self, url: str, title: str, subtitle: str, year: int | None,
+                bg: BackgroundTasks) -> str:
         dl_id = str(uuid.uuid4())
         now = datetime.now().isoformat()
         with _db() as conn:
@@ -53,7 +117,7 @@ class DownloadManager:
             )
         with self._lock:
             self._active[dl_id] = {"state": "queued", "progress": 0, "title": title}
-        bg.add_task(self._run, dl_id, url)
+        bg.add_task(self._run, dl_id, url, title, subtitle, year)
         return dl_id
 
     def status(self, dl_id: str) -> dict:
@@ -80,15 +144,15 @@ class DownloadManager:
         with self._lock:
             self._active.setdefault(dl_id, {}).update(kw)
 
-    def _run(self, dl_id: str, url: str):
+    def _run(self, dl_id: str, url: str, title: str, subtitle: str, year: int | None):
         Path(OUTPUT_DIR).mkdir(parents=True, exist_ok=True)
         self._set(dl_id, state="downloading")
         with _db() as conn:
             conn.execute("UPDATE downloads SET state='downloading' WHERE id=?", (dl_id,))
 
         # For HLS, yt-dlp downloads video then audio separately.
-        # After the first stream finishes, stay in "processing" — don't reset
-        # to "downloading" when the audio stream starts.
+        # After the first stream finishes, stay in "processing" to avoid
+        # resetting progress to 0% when the audio stream starts.
         finished_once = [False]
 
         def hook(d):
@@ -119,7 +183,17 @@ class DownloadManager:
         try:
             with yt_dlp.YoutubeDL(ydl_opts) as ydl:
                 info = ydl.extract_info(url, download=True)
-                filename = ydl.prepare_filename(info)
+                orig_path = Path(ydl.prepare_filename(info))
+
+            # Rename to proper release name
+            release_name = build_release_name(title, subtitle, year, info)
+            dest_path = orig_path.parent / release_name
+            if orig_path.exists() and orig_path != dest_path:
+                if dest_path.exists():
+                    dest_path.unlink()
+                orig_path.rename(dest_path)
+            filename = str(dest_path)
+
             self._set(dl_id, state="done", progress=100)
             with _db() as conn:
                 conn.execute(