Bild Carousel V2

src/app/(main)/api/tiktok/analytics/route.ts

@@ -0,0 +1,118 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { tiktokApi } from '@/lib/tiktok';
+
+// Live read-only stats from the Display API. Requires the user.info.stats and
+// video.list scopes — accounts connected before the scope change must
+// re-authorize via /api/tiktok/connect.
+
+const USER_FIELDS = 'display_name,follower_count,following_count,likes_count,video_count';
+const VIDEO_FIELDS =
+  'id,title,video_description,duration,create_time,share_url,view_count,like_count,comment_count,share_count';
+const VIDEO_PAGE_SIZE = 20; // Display API maximum per page
+
+const WEEKDAY_NAMES = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
+
+type TiktokVideo = Record<string, unknown>;
+
+const isAdminRequest = (request: NextRequest) => {
+  const adminKey = process.env.TIKTOK_ADMIN_KEY;
+  if (!adminKey) return false;
+  const provided =
+    request.headers.get('x-admin-key') || request.nextUrl.searchParams.get('key');
+  return provided === adminKey;
+};
+
+const summarizeVideos = (videos: TiktokVideo[]) => {
+  const enriched = videos.map((video) => {
+    const views = Number(video.view_count) || 0;
+    const likes = Number(video.like_count) || 0;
+    const comments = Number(video.comment_count) || 0;
+    const shares = Number(video.share_count) || 0;
+    const engagements = likes + comments + shares;
+    const postedAt = video.create_time ? new Date(Number(video.create_time) * 1000) : null;
+
+    return {
+      ...video,
+      engagement_rate: views > 0 ? Number((engagements / views).toFixed(4)) : null,
+      posted_at: postedAt ? postedAt.toISOString() : null,
+      posted_weekday_utc: postedAt ? WEEKDAY_NAMES[postedAt.getUTCDay()] : null,
+      posted_hour_utc: postedAt ? postedAt.getUTCHours() : null,
+    };
+  });
+
+  const viewCounts = videos
+    .map((video) => Number(video['view_count']) || 0)
+    .sort((a, b) => a - b);
+  const total = (key: string) =>
+    videos.reduce((sum, video) => sum + (Number(video[key]) || 0), 0);
+  const median = viewCounts.length
+    ? viewCounts.length % 2
+      ? viewCounts[(viewCounts.length - 1) / 2]
+      : (viewCounts[viewCounts.length / 2 - 1] + viewCounts[viewCounts.length / 2]) / 2
+    : 0;
+
+  const summary = {
+    video_count: enriched.length,
+    total_views: total('view_count'),
+    total_likes: total('like_count'),
+    total_comments: total('comment_count'),
+    total_shares: total('share_count'),
+    average_views: enriched.length ? Math.round(total('view_count') / enriched.length) : 0,
+    median_views: median,
+  };
+
+  return { videos: enriched, summary };
+};
+
+export async function GET(request: NextRequest) {
+  if (!isAdminRequest(request)) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+  }
+
+  try {
+    const maxVideosParam = Number(request.nextUrl.searchParams.get('max_videos'));
+    const maxVideos = Math.min(Math.max(maxVideosParam || 50, 1), 200);
+
+    const userResult = await tiktokApi(
+      `https://open.tiktokapis.com/v2/user/info/?fields=${USER_FIELDS}`,
+      { method: 'GET' }
+    );
+
+    const videos: TiktokVideo[] = [];
+    let cursor: unknown;
+    let hasMore = true;
+    while (hasMore && videos.length < maxVideos) {
+      const pageBody: Record<string, unknown> = {
+        max_count: Math.min(VIDEO_PAGE_SIZE, maxVideos - videos.length),
+      };
+      if (cursor) pageBody.cursor = cursor;
+
+      const page = await tiktokApi(
+        `https://open.tiktokapis.com/v2/video/list/?fields=${VIDEO_FIELDS}`,
+        { method: 'POST', body: JSON.stringify(pageBody) }
+      );
+
+      const pageData = page?.data as Record<string, unknown> | undefined;
+      const pageVideos = Array.isArray(pageData?.videos)
+        ? (pageData.videos as TiktokVideo[])
+        : [];
+      videos.push(...pageVideos);
+      cursor = pageData?.cursor;
+      hasMore = Boolean(pageData?.has_more) && pageVideos.length > 0;
+    }
+
+    const { videos: enrichedVideos, summary } = summarizeVideos(videos);
+    const userData = userResult?.data as Record<string, unknown> | undefined;
+
+    return NextResponse.json({
+      user: userData?.user || null,
+      summary,
+      videos: enrichedVideos,
+    });
+  } catch (err) {
+    const message = err instanceof Error ? err.message : 'Unknown error';
+    const status =
+      err instanceof Error && 'status' in err ? (err as { status?: number }).status : 502;
+    return NextResponse.json({ error: message }, { status: status || 502 });
+  }
+}

src/app/(main)/api/tiktok/connect/route.ts

@@ -24,7 +24,7 @@ export async function GET(request: NextRequest) {
 
   const authUrl = new URL('https://www.tiktok.com/v2/auth/authorize/');
   authUrl.searchParams.set('client_key', clientKey);
-  authUrl.searchParams.set('scope', 'user.info.basic,video.upload,video.publish');
+  authUrl.searchParams.set('scope', 'user.info.basic,user.info.stats,video.list,video.upload,video.publish');
   authUrl.searchParams.set('response_type', 'code');
   authUrl.searchParams.set('redirect_uri', redirectUri);
   authUrl.searchParams.set('state', oauthState);

src/app/(main)/api/tiktok/upload/route.ts

@@ -50,8 +50,9 @@ export async function POST(request: NextRequest) {
           }
         );
 
-        const uploadUrl = initResult?.data?.upload_url as string | undefined;
-        publishId = initResult?.data?.publish_id as string | undefined;
+        const initData = initResult?.data as Record<string, unknown> | undefined;
+        const uploadUrl = initData?.upload_url as string | undefined;
+        publishId = initData?.publish_id as string | undefined;
 
         if (!uploadUrl || !publishId) {
           return NextResponse.json(
@@ -111,8 +112,9 @@ export async function POST(request: NextRequest) {
           }
         );
 
-        publishId = initResult?.data?.publish_id as string | undefined;
-        status = (initResult?.data?.status as string) || 'INITIATED';
+        const initData = initResult?.data as Record<string, unknown> | undefined;
+        publishId = initData?.publish_id as string | undefined;
+        status = (initData?.status as string) || 'INITIATED';
       } else {
         return NextResponse.json(
           { error: 'Unsupported JSON payload. Use videoBufferBase64 or photos.' },

src/lib/tiktok.ts

@@ -3,6 +3,17 @@ import { db } from '@/lib/db';
 export const TIKTOK_OAUTH_STATE_COOKIE_NAME = 'tiktok_oauth_state';
 export const TIKTOK_ACCOUNT_KEY = 'hermes-agent';
 
+export class TiktokApiError extends Error {
+  status: number;
+  body?: unknown;
+
+  constructor(message: string, status = 502, body?: unknown) {
+    super(message);
+    this.status = status;
+    this.body = body;
+  }
+}
+
 // Refresh when the access token expires within this window, so Hermes never
 // receives a token that dies mid-upload.
 const REFRESH_BUFFER_MS = 5 * 60 * 1000;
@@ -58,16 +69,12 @@ export async function getValidTiktokTokens() {
   });
 }
 
-const REFRESH_BUFFER_MS = 5 * 60 * 1000;
-
 export async function getLiveTiktokAccessToken() {
   const integration = await db.tiktokIntegration.findUnique({
     where: { accountKey: TIKTOK_ACCOUNT_KEY },
   });
   if (!integration) {
-    const error = new Error('No TikTok account connected.');
-    error.status = 404;
-    throw error;
+    throw new TiktokApiError('No TikTok account connected.', 404);
   }
 
   if (integration.accessTokenExpiresAt.getTime() - Date.now() > REFRESH_BUFFER_MS) {
@@ -77,12 +84,14 @@ export async function getLiveTiktokAccessToken() {
   const clientKey = process.env.TIKTOK_CLIENT_KEY;
   const clientSecret = process.env.TIKTOK_CLIENT_SECRET;
   if (!clientKey || !clientSecret) {
-    const error = new Error('TikTok client credentials are not configured.');
-    error.status = 500;
-    throw error;
+    throw new TiktokApiError('TikTok client credentials are not configured.', 500);
   }
 
-  return getValidTiktokTokens();
+  const refreshed = await getValidTiktokTokens();
+  if (!refreshed) {
+    throw new TiktokApiError('No TikTok account connected.', 404);
+  }
+  return refreshed;
 }
 
 export async function tiktokApi(url: string, options: RequestInit = {}) {
@@ -109,10 +118,7 @@ export async function tiktokApi(url: string, options: RequestInit = {}) {
 
   if (!res.ok || (data?.error as Record<string, string> | undefined)?.code !== 'ok') {
     const message = (data?.error as Record<string, string> | undefined)?.message || (typeof data?.raw === 'string' ? data.raw : '') || `TikTok API error: ${res.status}`;
-    const error = new Error(message);
-    error.status = res.status;
-    error.body = data;
-    throw error;
+    throw new TiktokApiError(message, res.status, data);
   }
 
   return data;
@@ -125,14 +131,12 @@ export async function uploadBinaryToTiktok(uploadUrl: string, buffer: Buffer, mi
       'Content-Type': mimeType,
       'Content-Length': String(buffer.length),
     },
-    body: buffer,
+    body: new Uint8Array(buffer),
   });
 
   const text = await res.text();
   if (!res.ok && res.status !== 201) {
-    const error = new Error(`TikTok binary upload failed: ${res.status} ${text}`);
-    error.status = res.status;
-    throw error;
+    throw new TiktokApiError(`TikTok binary upload failed: ${res.status} ${text}`, res.status);
   }
 
   return { status: res.status, body: text };