direct download via youtube links

backend/main.py

@@ -54,6 +54,17 @@ async def search_youtube(q: str = Query(..., min_length=1)) -> list[dict[str, An
         raise HTTPException(status_code=502, detail=f"YouTube search failed: {exc}")
 
 
+@app.get("/api/youtube/resolve")
+async def resolve_youtube(url: str = Query(..., min_length=1)) -> dict[str, Any]:
+    """Resolve a pasted YouTube URL to video metadata (no download)."""
+    try:
+        return await youtube.resolve_youtube_url(url)
+    except ValueError as exc:
+        raise HTTPException(status_code=400, detail=str(exc))
+    except Exception as exc:
+        raise HTTPException(status_code=502, detail=f"Couldn't load that video: {exc}")
+
+
 # ── Download ──────────────────────────────────────────────────────────────────
 
 @app.post("/api/download")

backend/youtube.py

@@ -65,6 +65,50 @@ def _format_duration(seconds: int | None) -> str:
     return f"{m}:{s:02d}"
 
 
+# ── Resolve pasted URL ───────────────────────────────────────────────────────
+
+_VIDEO_ID_RE = re.compile(
+    r"(?:youtube(?:-nocookie)?\.com/(?:watch\?(?:.*&)?v=|embed/|shorts/|v/)|youtu\.be/)"
+    r"([A-Za-z0-9_-]{11})"
+)
+_BARE_ID_RE = re.compile(r"^[A-Za-z0-9_-]{11}$")
+
+
+def extract_video_id(url: str) -> str | None:
+    """Pull an 11-char YouTube video ID out of a pasted URL (or bare ID)."""
+    url = url.strip()
+    if _BARE_ID_RE.match(url):
+        return url
+    match = _VIDEO_ID_RE.search(url)
+    return match.group(1) if match else None
+
+
+async def resolve_youtube_url(url: str) -> dict[str, Any]:
+    """Fetch metadata for a single pasted YouTube URL, without downloading it."""
+    video_id = extract_video_id(url)
+    if not video_id:
+        raise ValueError("Couldn't find a YouTube video ID in that URL.")
+
+    watch_url = f"https://www.youtube.com/watch?v={video_id}"
+    ydl_opts = {"quiet": True, "no_warnings": True, "skip_download": True}
+    loop = asyncio.get_event_loop()
+    entry = await loop.run_in_executor(None, _yt_resolve, watch_url, ydl_opts)
+
+    return {
+        "videoId": video_id,
+        "title": entry.get("title", ""),
+        "channel": entry.get("uploader") or entry.get("channel", ""),
+        "duration": _format_duration(entry.get("duration")),
+        "thumbnailUrl": f"https://i.ytimg.com/vi/{video_id}/mqdefault.jpg",
+        "watchUrl": watch_url,
+    }
+
+
+def _yt_resolve(url: str, opts: dict) -> dict[str, Any]:
+    with yt_dlp.YoutubeDL(opts) as ydl:
+        return ydl.extract_info(url, download=False)
+
+
 # ── Download ──────────────────────────────────────────────────────────────────
 
 async def start_download(