From 118991b96906a61560190818d83858dcbce560d0 Mon Sep 17 00:00:00 2001
From: SukkaW <isukkaw@gmail.com>
Date: Tue, 4 Feb 2025 10:13:01 +0800
Subject: [PATCH] Remove unused codes

---
 Build/lib/cache-filesystem.ts         | 42 +--------------------------
 Build/lib/fetch-text-by-line.bench.ts |  4 +--
 Build/lib/fetch-text-by-line.ts       |  7 -----
 3 files changed, 3 insertions(+), 50 deletions(-)

diff --git a/Build/lib/cache-filesystem.ts b/Build/lib/cache-filesystem.ts
index 7d348215..f3315c2c 100644
--- a/Build/lib/cache-filesystem.ts
+++ b/Build/lib/cache-filesystem.ts
@@ -6,12 +6,8 @@ import { mkdirSync } from 'node:fs';
 import picocolors from 'picocolors';
 import { fastStringArrayJoin } from 'foxts/fast-string-array-join';
 import { performance } from 'node:perf_hooks';
-import fs from 'node:fs';
-import { simpleStringHash } from 'foxts/simple-string-hash';
 // import type { UndiciResponseData } from './fetch-retry';
 
-import { CACHE_DIR } from '../constants/dir';
-
 export interface CacheOptions<S = string> {
   /** Path to sqlite file dir */
   cachePath?: string,
@@ -35,32 +31,6 @@ interface CacheApplyNonRawOption<T, S> extends CacheApplyRawOption {
 
 export type CacheApplyOption<T, S> = T extends S ? CacheApplyRawOption : CacheApplyNonRawOption<T, S>;
 
-const randomInt = (min: number, max: number) => Math.floor(Math.random() * (max - min + 1)) + min;
-
-const ONE_HOUR = 60 * 60 * 1000;
-const ONE_DAY = 24 * ONE_HOUR;
-// Add some randomness to the cache ttl to avoid thundering herd
-export const TTL = {
-  useHttp304: Symbol('useHttp304'),
-  humanReadable(ttl: number) {
-    if (ttl >= ONE_DAY) {
-      return `${Math.round(ttl / 24 / 60 / 60 / 1000)}d`;
-    }
-    if (ttl >= 60 * 60 * 1000) {
-      return `${Math.round(ttl / 60 / 60 / 1000)}h`;
-    }
-    return `${Math.round(ttl / 1000)}s`;
-  },
-  THREE_HOURS: () => randomInt(1, 3) * ONE_HOUR,
-  TWLVE_HOURS: () => randomInt(8, 12) * ONE_HOUR,
-  ONE_DAY: () => randomInt(23, 25) * ONE_HOUR,
-  ONE_WEEK_STATIC: ONE_DAY * 7,
-  THREE_DAYS: () => randomInt(1, 3) * ONE_DAY,
-  ONE_WEEK: () => randomInt(4, 7) * ONE_DAY,
-  TEN_DAYS: () => randomInt(7, 10) * ONE_DAY,
-  TWO_WEEKS: () => randomInt(10, 14) * ONE_DAY
-};
-
 export class Cache<S = string> {
   private db: Database;
   /** Time before deletion */
@@ -186,21 +156,11 @@ export class Cache<S = string> {
   }
 }
 
-// drop deprecated cache
-new Cache({ cachePath: CACHE_DIR }).deleteTable('cache');
-
 // process.on('exit', () => {
 //   fsFetchCache.destroy();
 // });
 
 const separator = '\u0000';
-export const serializeSet = (set: Set<string>) => fastStringArrayJoin(Array.from(set), separator);
-export const deserializeSet = (str: string) => new Set(str.split(separator));
+
 export const serializeArray = (arr: string[]) => fastStringArrayJoin(arr, separator);
 export const deserializeArray = (str: string) => str.split(separator);
-
-const getFileContentHash = (filename: string) => simpleStringHash(fs.readFileSync(filename, 'utf-8'));
-export function createCacheKey(filename: string) {
-  const fileHash = getFileContentHash(filename);
-  return (key: string) => key + '$' + fileHash + '$';
-}
diff --git a/Build/lib/fetch-text-by-line.bench.ts b/Build/lib/fetch-text-by-line.bench.ts
index 02660c11..60534f7c 100644
--- a/Build/lib/fetch-text-by-line.bench.ts
+++ b/Build/lib/fetch-text-by-line.bench.ts
@@ -1,4 +1,4 @@
-import { readFileByLine, readFileByLineNew } from './fetch-text-by-line';
+import { readFileByLine/* , readFileByLineNew */ } from './fetch-text-by-line';
 import path from 'node:path';
 import fsp from 'node:fs/promises';
 import { OUTPUT_SURGE_DIR } from '../constants/dir';
@@ -10,7 +10,7 @@ const file = path.join(OUTPUT_SURGE_DIR, 'domainset/reject_extra.conf');
 
   group(() => {
     bench('readFileByLine', () => Array.fromAsync(readFileByLine(file)));
-    bench('readFileByLineNew', async () => Array.fromAsync(await readFileByLineNew(file)));
+    // bench('readFileByLineNew', async () => Array.fromAsync(await readFileByLineNew(file)));
     bench('fsp.readFile', () => fsp.readFile(file, 'utf-8').then((content) => content.split('\n')));
   });
 
diff --git a/Build/lib/fetch-text-by-line.ts b/Build/lib/fetch-text-by-line.ts
index 025f0fa5..1e4c672b 100644
--- a/Build/lib/fetch-text-by-line.ts
+++ b/Build/lib/fetch-text-by-line.ts
@@ -1,6 +1,4 @@
 import fs from 'node:fs';
-import fsp from 'node:fs/promises';
-import type { FileHandle } from 'node:fs/promises';
 import readline from 'node:readline';
 
 import { TextLineStream } from './text-line-transform-stream';
@@ -19,11 +17,6 @@ export function readFileByLine(file: string): AsyncIterable<string> {
   });
 }
 
-const fdReadLines = (fd: FileHandle) => fd.readLines();
-export async function readFileByLineNew(file: string): Promise<AsyncIterable<string>> {
-  return fsp.open(file, 'r').then(fdReadLines);
-}
-
 export const createReadlineInterfaceFromResponse: ((resp: UndiciResponseData | UnidiciWebResponse, processLine?: boolean) => ReadableStream<string>) = (resp, processLine = false) => {
   invariant(resp.body, 'Failed to fetch remote text');
   if ('bodyUsed' in resp && resp.bodyUsed) {