fix: use description if no subtitles

lib/fetchSubtitle.ts

@@ -1,5 +1,8 @@
 import { VideoService } from "~/lib/types";
-import { fetchYoutubeSubtitleUrls, SUBTITLE_DOWNLOADER_URL } from "~/lib/youtube/fetchYoutubeSubtitleUrls";
+import {
+  fetchYoutubeSubtitleUrls,
+  SUBTITLE_DOWNLOADER_URL,
+} from "~/lib/youtube/fetchYoutubeSubtitleUrls";
 import { find } from "~/utils/fp";
 import { fetchBilibiliSubtitleUrls } from "./bilibili/fetchBilibiliSubtitleUrls";
 
@@ -51,10 +54,11 @@ export async function fetchSubtitle(
   // });
   // @ts-ignore
   const res = await fetchBilibiliSubtitleUrls(videoId);
-  const title = res?.title;
+  const { title, desc, dynamic } = res || {};
+  const descriptionText = desc + "\n" + dynamic;
   const subtitleList = res?.subtitle?.list;
   if (!subtitleList || subtitleList?.length < 1) {
-    return { title, subtitles: null };
+    return { title, subtitles: null, descriptionText };
   }
 
   const betterSubtitle =
@@ -81,5 +85,5 @@ export async function fetchSubtitle(
       };
     }
   );
-  return { title, subtitles: transcripts };
+  return { title, subtitles: transcripts, descriptionText };
 }

lib/openai/trimOpenAiResult.ts

@@ -1,7 +1,7 @@
 export function trimOpenAiResult(result: any) {
   const answer = result.choices[0].message?.content || "";
   if (answer.startsWith("\n\n")) {
-    return answer.substring(2);
+    return answer.substring(1);
   }
   return answer;
 }

pages/api/summarize.ts

@@ -27,17 +27,21 @@ export default async function handler(
   if (!videoId) {
     return new Response("No videoId in the request", { status: 500 });
   }
-  const { title, subtitles } = await fetchSubtitle(
+  const { title, subtitles, descriptionText } = await fetchSubtitle(
     videoId,
     service,
     shouldShowTimestamp
   );
-  if (!subtitles) {
+  if (!subtitles && !descriptionText) {
     console.error("No subtitle in the video: ", videoId);
     return new Response("No subtitle in the video", { status: 501 });
   }
-  const text = getChunckedTranscripts(subtitles, subtitles);
-  const prompt = getSummaryPrompt(title, text, { shouldShowTimestamp });
+  const inputText = subtitles
+    ? getChunckedTranscripts(subtitles, subtitles)
+    : descriptionText;
+  const prompt = getSummaryPrompt(title, inputText, {
+    shouldShowTimestamp: subtitles ? shouldShowTimestamp : false,
+  });
 
   try {
     userKey && console.log("========use user apiKey========");