Add dynamic suggested Vietnamese TikTokers API with caching

backend/api/routes/user.py

@@ -156,3 +156,76 @@ async def search_videos(
         print(f"Error searching for {query}: {e}")
         raise HTTPException(status_code=500, detail=str(e))
 
+
+# Cache for suggested accounts
+_suggested_cache = {
+    "accounts": [],
+    "updated_at": 0
+}
+CACHE_TTL = 3600  # 1 hour cache
+
+
+@router.get("/suggested")
+async def get_suggested_accounts(
+    limit: int = Query(50, description="Max accounts to return", ge=10, le=100)
+):
+    """
+    Fetch trending/suggested Vietnamese TikTok creators.
+    Uses TikTok's discover API and caches results for 1 hour.
+    """
+    import time
+    
+    # Check cache
+    if _suggested_cache["accounts"] and (time.time() - _suggested_cache["updated_at"]) < CACHE_TTL:
+        print("Returning cached suggested accounts")
+        return {"accounts": _suggested_cache["accounts"][:limit], "cached": True}
+    
+    # Load stored credentials
+    cookies, user_agent = PlaywrightManager.load_stored_credentials()
+    
+    if not cookies:
+        # Return fallback static list if not authenticated
+        return {"accounts": get_fallback_accounts()[:limit], "cached": False, "fallback": True}
+    
+    print("Fetching fresh suggested accounts from TikTok...")
+    
+    try:
+        accounts = await PlaywrightManager.fetch_suggested_accounts(cookies, user_agent, limit)
+        
+        if accounts:
+            _suggested_cache["accounts"] = accounts
+            _suggested_cache["updated_at"] = time.time()
+            return {"accounts": accounts[:limit], "cached": False}
+        else:
+            # Fallback if API fails
+            return {"accounts": get_fallback_accounts()[:limit], "cached": False, "fallback": True}
+            
+    except Exception as e:
+        print(f"Error fetching suggested accounts: {e}")
+        return {"accounts": get_fallback_accounts()[:limit], "cached": False, "fallback": True}
+
+
+def get_fallback_accounts():
+    """Static fallback list of popular Vietnamese TikTokers."""
+    return [
+        {"username": "ciin_rubi", "nickname": "👑 CiiN - Lisa of Vietnam", "region": "VN"},
+        {"username": "hoaa.hanassii", "nickname": "💃 Hoa Hanassii", "region": "VN"},
+        {"username": "hoa_2309", "nickname": "🔥 Ngô Ngọc Hòa", "region": "VN"},
+        {"username": "minah.ne", "nickname": "🎵 Minah", "region": "VN"},
+        {"username": "lebong95", "nickname": "💪 Lê Bống", "region": "VN"},
+        {"username": "po.trann77", "nickname": "✨ Trần Thanh Tâm", "region": "VN"},
+        {"username": "gamkami", "nickname": "🎱 Gấm Kami", "region": "VN"},
+        {"username": "quynhalee", "nickname": "🎮 Quỳnh Alee", "region": "VN"},
+        {"username": "tieu_hy26", "nickname": "👰 Tiểu Hý", "region": "VN"},
+        {"username": "changmie", "nickname": "🎤 Changmie", "region": "VN"},
+        {"username": "vuthuydien", "nickname": "😄 Vũ Thụy Điển", "region": "VN"},
+        {"username": "thienantv", "nickname": "😂 Thiên An TV", "region": "VN"},
+        {"username": "amee_official", "nickname": "🎵 AMEE", "region": "VN"},
+        {"username": "sontungmtp_official", "nickname": "🎤 Sơn Tùng M-TP", "region": "VN"},
+        {"username": "hieuthuhai_", "nickname": "🎧 HIEUTHUHAI", "region": "VN"},
+        {"username": "mck.99", "nickname": "🔥 MCK", "region": "VN"},
+        {"username": "tranducbo", "nickname": "😄 Trần Đức Bo", "region": "VN"},
+        {"username": "call.me.duy", "nickname": "🎭 Call Me Duy", "region": "VN"},
+        {"username": "mai_ngok", "nickname": "💕 Mai Ngok", "region": "VN"},
+        {"username": "thanhtrungdam", "nickname": "🎤 Đàm Thanh Trung", "region": "VN"},
+    ]

backend/core/playwright_manager.py

@@ -773,6 +773,100 @@ class PlaywrightManager:
         print(f"DEBUG: Total captured search videos: {len(captured_videos)}")
         return captured_videos
 
+    @staticmethod
+    async def fetch_suggested_accounts(cookies: list, user_agent: str = None, limit: int = 50) -> list:
+        """
+        Fetch trending/suggested accounts from TikTok Vietnam.
+        Uses the discover/creators API.
+        """
+        from playwright.async_api import async_playwright, Response
+        
+        if not user_agent:
+            user_agent = PlaywrightManager.DEFAULT_USER_AGENT
+        
+        captured_accounts = []
+        
+        async def handle_response(response: Response):
+            """Capture suggested accounts from API responses."""
+            nonlocal captured_accounts
+            
+            url = response.url
+            
+            # Look for suggest/discover APIs
+            if any(x in url for x in ["suggest", "discover", "recommend/user", "creator"]):
+                try:
+                    data = await response.json()
+                    
+                    # Different API formats
+                    users = data.get("userList", []) or data.get("users", []) or data.get("data", [])
+                    
+                    for item in users:
+                        user_data = item.get("user", item) if isinstance(item, dict) else item
+                        if isinstance(user_data, dict):
+                            username = user_data.get("uniqueId") or user_data.get("unique_id")
+                            if username:
+                                captured_accounts.append({
+                                    "username": username,
+                                    "nickname": user_data.get("nickname", username),
+                                    "avatar": user_data.get("avatarThumb") or user_data.get("avatar"),
+                                    "followers": user_data.get("followerCount", 0),
+                                    "verified": user_data.get("verified", False),
+                                    "region": "VN"
+                                })
+                    
+                    if users:
+                        print(f"DEBUG: Captured {len(users)} suggested accounts")
+                        
+                except Exception as e:
+                    pass  # Ignore parse errors
+        
+        async with async_playwright() as p:
+            browser = await p.chromium.launch(
+                headless=True,
+                args=PlaywrightManager.BROWSER_ARGS
+            )
+            
+            context = await browser.new_context(
+                user_agent=user_agent,
+                locale="vi-VN",  # Vietnamese locale
+                timezone_id="Asia/Ho_Chi_Minh"
+            )
+            await context.add_cookies(cookies)
+            
+            page = await context.new_page()
+            await stealth_async(page)
+            page.on("response", handle_response)
+            
+            try:
+                # Navigate to TikTok explore/discover page (Vietnam)
+                await page.goto("https://www.tiktok.com/explore?lang=vi-VN", wait_until="networkidle", timeout=30000)
+                await asyncio.sleep(3)
+                
+                # Also try the For You page to capture suggested
+                await page.goto("https://www.tiktok.com/foryou?lang=vi-VN", wait_until="domcontentloaded", timeout=15000)
+                await asyncio.sleep(2)
+                
+                # Scroll to trigger more suggestions
+                for _ in range(3):
+                    await page.evaluate("window.scrollBy(0, 800)")
+                    await asyncio.sleep(1)
+                
+            except Exception as e:
+                print(f"DEBUG: Error fetching suggested accounts: {e}")
+            
+            await browser.close()
+        
+        # Remove duplicates by username
+        seen = set()
+        unique_accounts = []
+        for acc in captured_accounts:
+            if acc["username"] not in seen:
+                seen.add(acc["username"])
+                unique_accounts.append(acc)
+        
+        print(f"DEBUG: Total unique suggested accounts: {len(unique_accounts)}")
+        return unique_accounts[:limit]
+
 
 # Singleton instance
 playwright_manager = PlaywrightManager()

frontend/src/components/Feed.tsx

@@ -199,11 +199,33 @@ export const Feed: React.FC = () => {
     const loadSuggestedProfiles = async () => {
         setLoadingProfiles(true);
         try {
-            const usernames = SUGGESTED_ACCOUNTS.map(a => a.username.replace('@', '')).join(',');
-            const res = await axios.get(`${API_BASE_URL}/user/profiles?usernames=${usernames}`);
-            setSuggestedProfiles(res.data);
+            // Try the dynamic suggested API first (auto-updates from TikTok Vietnam)
+            const res = await axios.get(`${API_BASE_URL}/user/suggested?limit=50`);
+            const accounts = res.data.accounts || [];
+
+            if (accounts.length > 0) {
+                // Map API response to our profile format
+                setSuggestedProfiles(accounts.map((acc: any) => ({
+                    username: acc.username,
+                    nickname: acc.nickname || acc.username,
+                    avatar: acc.avatar || null,
+                    followers: acc.followers || 0,
+                    verified: acc.verified || false
+                })));
+            } else {
+                // Fallback to static list if API returns empty
+                setSuggestedProfiles(SUGGESTED_ACCOUNTS.map(a => ({
+                    username: a.username.replace('@', ''),
+                    nickname: a.label
+                })));
+            }
         } catch (err) {
             console.error('Failed to load profiles:', err);
+            // Fallback to static list on error
+            setSuggestedProfiles(SUGGESTED_ACCOUNTS.map(a => ({
+                username: a.username.replace('@', ''),
+                nickname: a.label
+            })));
         } finally {
             setLoadingProfiles(false);
         }