From 76ca595a986a4f4969b25465c6564fa8443abb9f Mon Sep 17 00:00:00 2001
From: kuekhaoyang <kuekhaoyang@Gmail.com>
Date: Sat, 29 Nov 2025 12:55:46 +0800
Subject: [PATCH] refactor: remove unused variables and imports, and
 internalize module-specific functions and interfaces.

---
 lib/hooks/useHistoryDownloader.ts | 2 +-
 lib/utils/cacheManager.ts         | 2 +-
 lib/utils/hlsManifestParser.ts    | 1 -
 lib/utils/proxy-utils.ts          | 3 +--
 lib/utils/search-stream.ts        | 3 ---
 lib/utils/segmentDownloader.ts    | 5 +----
 6 files changed, 4 insertions(+), 12 deletions(-)

diff --git a/lib/hooks/useHistoryDownloader.ts b/lib/hooks/useHistoryDownloader.ts
index 4b07717..e8e6562 100644
--- a/lib/hooks/useHistoryDownloader.ts
+++ b/lib/hooks/useHistoryDownloader.ts
@@ -11,7 +11,7 @@ import { useHistoryStore } from '@/lib/store/history-store';
 import { parseHLSManifest } from '@/lib/utils/hlsManifestParser';
 import { downloadSegmentQueue } from '@/lib/utils/segmentDownloader';
 
-export function useHistoryDownloader() {
+function useHistoryDownloader() {
     const viewingHistory = useHistoryStore((state) => state.viewingHistory);
     const processedUrlsRef = useRef<Set<string>>(new Set());
     const pathname = usePathname();
diff --git a/lib/utils/cacheManager.ts b/lib/utils/cacheManager.ts
index bb875aa..0afc469 100644
--- a/lib/utils/cacheManager.ts
+++ b/lib/utils/cacheManager.ts
@@ -6,7 +6,7 @@ const MAX_CACHE_SIZE_MB = 1000; // 1GB
 
 interface CacheMetadata { url: string; videoUrl: string; cachedAt: number; size: number; lastAccessed: number; }
 
-export interface CacheStats { totalEntries: number; totalSizeMB: number; oldestEntry: number; newestEntry: number; }
+interface CacheStats { totalEntries: number; totalSizeMB: number; oldestEntry: number; newestEntry: number; }
 
 class CacheManager {
     private metadata = new Map<string, CacheMetadata>();
diff --git a/lib/utils/hlsManifestParser.ts b/lib/utils/hlsManifestParser.ts
index d0c77fb..490f947 100644
--- a/lib/utils/hlsManifestParser.ts
+++ b/lib/utils/hlsManifestParser.ts
@@ -21,7 +21,6 @@ export async function parseHLSManifest(src: string): Promise<Segment[]> {
 
     const lines = manifestText.split('\n');
     const segments: Segment[] = [];
-    const baseUrl = src.substring(0, src.lastIndexOf('/') + 1);
     let currentSegmentDuration = 0;
     let currentStartTime = 0;
 
diff --git a/lib/utils/proxy-utils.ts b/lib/utils/proxy-utils.ts
index cda4a6d..7dcd1a1 100644
--- a/lib/utils/proxy-utils.ts
+++ b/lib/utils/proxy-utils.ts
@@ -1,4 +1,3 @@
-import { NextRequest } from 'next/server';
 
 export async function processM3u8Content(
     content: string,
@@ -19,7 +18,7 @@ export async function processM3u8Content(
             const absoluteUrl = new URL(line.trim(), base).toString();
             // Wrap in proxy
             return `${origin}/api/proxy?url=${encodeURIComponent(absoluteUrl)}`;
-        } catch (e) {
+        } catch {
             return line;
         }
     });
diff --git a/lib/utils/search-stream.ts b/lib/utils/search-stream.ts
index 096dadf..9c14a87 100644
--- a/lib/utils/search-stream.ts
+++ b/lib/utils/search-stream.ts
@@ -1,7 +1,6 @@
 import { Video } from '@/lib/types';
 import { getSourceName } from '@/lib/utils/source-names';
 import { calculateRelevanceScore, hasMinimumMatch } from '@/lib/utils/search';
-import { binaryInsertVideos } from '@/lib/utils/sorted-insert';
 
 interface StreamHandlerParams {
     reader: ReadableStreamDefaultReader<Uint8Array>;
@@ -24,14 +23,12 @@ export async function processSearchStream({
 }: StreamHandlerParams) {
     const decoder = new TextDecoder();
     let buffer = '';
-    let lastProgressTime = Date.now();
     let timeoutId: NodeJS.Timeout | null = null;
     let isCompleted = false;
 
     // Auto-complete if no progress for 3 seconds
     const resetTimeout = () => {
         if (timeoutId) clearTimeout(timeoutId);
-        lastProgressTime = Date.now();
 
         timeoutId = setTimeout(() => {
             if (!isCompleted) {
diff --git a/lib/utils/segmentDownloader.ts b/lib/utils/segmentDownloader.ts
index 9dd4db0..68e323d 100644
--- a/lib/utils/segmentDownloader.ts
+++ b/lib/utils/segmentDownloader.ts
@@ -24,7 +24,6 @@ export async function downloadSegmentQueue(options: DownloadQueueOptions): Promi
     if (!('caches' in window)) return;
 
     const cache = await caches.open(CACHE_NAME);
-    let activeCount = 0;
     let currentIndex = startIndex;
 
     const processNext = async () => {
@@ -33,7 +32,6 @@ export async function downloadSegmentQueue(options: DownloadQueueOptions): Promi
         const segment = segments[currentIndex];
         const url = segment.url;
         currentIndex++;
-        activeCount++;
 
         const timeoutController = new AbortController();
         const timeoutId = setTimeout(() => timeoutController.abort(), TIMEOUT_MS);
@@ -72,11 +70,10 @@ export async function downloadSegmentQueue(options: DownloadQueueOptions): Promi
                     }
                 }
             }
-        } catch (err) {
+        } catch {
             // Ignore errors
         } finally {
             clearTimeout(timeoutId);
-            activeCount--;
             if (!signal.aborted) processNext();
         }
     };