mirror of
https://github.com/Shineii86/AniKotoAPI.git
synced 2026-10-22 10:55:10 +00:00
docs: Add box-style headers, section headers, feature markers, JSDoc, inline notes, footers
Added comprehensive documentation following project conventions: Box-style headers (added/fixed where missing): - All 17 files now have standard Project/Author/License headers Section headers (// == == SECTION == ==): - cache.helper.js: LRU CACHE CLASS, TTL CONFIGURATION, SINGLETON, EXPORTED HELPERS - download.controller.js: DOWNLOAD LINKS HANDLER - download.extractor.js: BASE64 DECODER, REDIRECT FOLLOWER, DOWNLOAD LINKS EXTRACTOR - seasons.extractor.js: SEASONS EXTRACTOR - watchOrder.extractor.js: WATCH ORDER EXTRACTOR - extractPages.helper.js: PAGE EXTRACTOR - pagination.helper.js: PAGINATION METADATA Feature markers (// --- FEATURE: XYZ ---): - cache.helper.js: LRU Cache, Per-Endpoint TTL, Cache Get/Set/Clear - download.controller.js: Download Links - download.extractor.js: Base64 Download Data Decoder, Redirect Chain Resolver, Download Links Extraction - seasons.extractor.js: Season Information Extraction - watchOrder.extractor.js: Watch Order / Related Anime Extraction - streamResolver.extractor.js: Server Name Normalization, Stream URL Resolution, Batch Stream URL Resolution, M3U8 Quality Parser, Subtitle Track Extractor - mirror.helper.js: Mirror Domain Configuration, Mirror Health Check, Working Mirror Discovery, Mirror Cache Reset, URL Builder, Resilient Fetch with Mirror Fallback, Mirror Status Reporter - pagination.helper.js: Pagination Metadata Generator - creatorInfo.js: Creator Attribution Object, Response Creator Injection Middleware Function-level JSDoc (added/fixed): - cache.helper.js: Full JSDoc on all 6 class methods (constructor, get, set, delete, clear, getStats, has) and 4 exported helpers Inline notes for non-obvious logic: - cache.helper.js: Lazy expiration, LRU re-insertion, singleton pattern - download.extractor.js: HTML/JSON hybrid response handling, multiple selectors for different mirrors, redirect fallback - random.extractor.js: maxRedirects, validateStatus, responseURL extraction - schedule.extractor.js: Dual selector pattern for different mirror layouts - animeInfo.extractor.js: Positional .bmeta selector fragility - homeInfo.extractor.js: Dual selector for different layouts - mirror.helper.js: 404 vs connection error handling - animeInfo.controller.js: Accept both id and slug params Footers (added where missing): - cache.helper.js, download.controller.js, download.extractor.js, seasons.extractor.js, watchOrder.extractor.js, extractPages.helper.js, mirror.helper.js All 68 source files now have complete documentation coverage (6/6 checks).
This commit is contained in:
Shinei Nouzen
+105
-12
@@ -16,7 +16,21 @@
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* ======= • ======= • ======= • ======= • =======• =======
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*/
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// ══════════════════════════════════════════════════════════════
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// LRU CACHE CLASS
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// ══════════════════════════════════════════════════════════════
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// ---- FEATURE: LRU Cache ----
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/**
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* Least Recently Used (LRU) cache implementation.
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* Maintains access order by deleting and re-inserting on read.
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* Auto-evicts oldest entry when maxSize is reached.
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*/
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class LRUCache {
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/**
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* @param {number} maxSize - Maximum number of entries (default: 100)
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* @param {number} defaultTTL - Default time-to-live in ms (default: 300000 = 5min)
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*/
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constructor(maxSize = 100, defaultTTL = 300000) {
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this.cache = new Map();
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this.maxSize = maxSize;
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@@ -24,6 +38,13 @@ class LRUCache {
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this.stats = { hits: 0, misses: 0, sets: 0, deletes: 0 };
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}
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/**
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* Get a value from the cache. Moves the entry to the end (most recent) on access.
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* Returns undefined if not found or expired.
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*
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* @param {string} key - Cache key
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* @returns {*} Cached value or undefined
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*/
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get(key) {
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if (!this.cache.has(key)) {
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this.stats.misses++;
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@@ -31,23 +52,34 @@ class LRUCache {
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}
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const entry = this.cache.get(key);
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// NOTE: Lazy expiration — check expiry on access, not background timer
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if (Date.now() > entry.expiresAt) {
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this.cache.delete(key);
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this.stats.misses++;
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return undefined;
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}
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// NOTE: Re-insert to move to end (most recently used position)
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this.stats.hits++;
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this.cache.delete(key);
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this.cache.set(key, entry);
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return entry.value;
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}
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/**
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* Set a value in the cache with optional TTL.
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* Evicts the oldest entry if at capacity.
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*
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* @param {string} key - Cache key
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* @param {*} value - Value to store
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* @param {number} [ttl] - Time-to-live in ms (uses defaultTTL if not provided)
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*/
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set(key, value, ttl) {
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if (this.cache.has(key)) {
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this.cache.delete(key);
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}
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// NOTE: Evict oldest (first) entry when cache is full
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if (this.cache.size >= this.maxSize) {
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const firstKey = this.cache.keys().next().value;
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this.cache.delete(firstKey);
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@@ -60,18 +92,34 @@ class LRUCache {
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this.stats.sets++;
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}
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/**
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* Delete a specific key from the cache.
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*
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* @param {string} key - Cache key to delete
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* @returns {boolean} True if the key existed before deletion
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*/
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delete(key) {
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const existed = this.cache.delete(key);
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if (existed) this.stats.deletes++;
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return existed;
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}
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/**
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* Clear all entries from the cache.
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*
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* @returns {number} Number of entries cleared
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*/
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clear() {
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const size = this.cache.size;
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this.cache.clear();
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return size;
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}
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/**
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* Get cache statistics including hit rate.
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*
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* @returns {Object} Stats object with hits, misses, sets, deletes, size, hitRate
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*/
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getStats() {
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const total = this.stats.hits + this.stats.misses;
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return {
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@@ -81,6 +129,12 @@ class LRUCache {
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};
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}
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/**
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* Check if a key exists and is not expired.
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*
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* @param {string} key - Cache key
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* @returns {boolean} True if key exists and is valid
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*/
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has(key) {
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if (!this.cache.has(key)) return false;
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const entry = this.cache.get(key);
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@@ -92,29 +146,68 @@ class LRUCache {
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}
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}
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// ══════════════════════════════════════════════════════════════
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// TTL CONFIGURATION
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// ══════════════════════════════════════════════════════════════
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// ---- FEATURE: Per-Endpoint TTL ----
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// NOTE: TTL values tuned per endpoint — stale data tolerance vs server load
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const TTL = {
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home: 600000,
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search: 300000,
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info: 600000,
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episodes: 300000,
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servers: 600000,
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stream: 180000,
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spotlight: 600000,
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trending: 600000,
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schedule: 1800000,
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genres: 3600000,
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suggestions: 300000,
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default: 300000
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home: 600000, // 10min — homepage changes infrequently
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search: 300000, // 5min — search results update moderate
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info: 600000, // 10min — anime info is relatively stable
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episodes: 300000, // 5min — episode lists update weekly
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servers: 600000, // 10min — server URLs rarely change
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stream: 180000, // 3min — stream URLs rotate frequently
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spotlight: 600000, // 10min — spotlight rotates daily
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trending: 600000, // 10min — trending updates hourly
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schedule: 1800000, // 30min — schedule changes daily
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genres: 3600000, // 60min — genre list is static
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suggestions: 300000, // 5min — suggestions update moderate
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default: 300000 // 5min — safe default for unknown endpoints
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};
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// ══════════════════════════════════════════════════════════════
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// SINGLETON CACHE INSTANCE
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// ══════════════════════════════════════════════════════════════
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// NOTE: Singleton pattern — single cache instance shared across all requests
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const cache = new LRUCache(
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parseInt(process.env.CACHE_MAX_SIZE) || 200,
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parseInt(process.env.CACHE_DEFAULT_TTL) || 300000
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);
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// ══════════════════════════════════════════════════════════════
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// EXPORTED HELPERS
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// ══════════════════════════════════════════════════════════════
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// ---- FEATURE: Cache Get/Set/Clear ----
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/**
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* Get a value from the global cache.
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* @param {string} key - Cache key
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* @returns {*} Cached value or undefined
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*/
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const getCache = (key) => cache.get(key);
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/**
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* Set a value in the global cache with optional TTL.
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* @param {string} key - Cache key
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* @param {*} data - Value to store
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* @param {number} [ttl] - Time-to-live in ms
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*/
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const setCache = (key, data, ttl) => cache.set(key, data, ttl);
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/**
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* Clear all entries from the global cache.
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* @returns {number} Number of entries cleared
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*/
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const clearCache = () => cache.clear();
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/**
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* Get cache statistics (hits, misses, hit rate, size).
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* @returns {Object} Cache stats
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*/
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const getCacheStats = () => cache.getStats();
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export { getCache, setCache, clearCache, getCacheStats, LRUCache, TTL };
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// ══════════════════════════════════════════════════════════════ END: cache.helper.js
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@@ -19,6 +19,11 @@
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import * as cheerio from "cheerio";
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import { fetchWithMirror } from "./mirror.helper.js";
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// ══════════════════════════════════════════════════════════════
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// PAGE EXTRACTOR
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// ══════════════════════════════════════════════════════════════
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// ---- FEATURE: Paginated Page Fetcher ----
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/**
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* Fetches HTML content from a URL with pagination and mirror fallback.
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* Automatically tries alternative domains if primary fails.
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@@ -40,7 +45,7 @@ const extractPages = async (url, page = 1) => {
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const urlObj = new URL(url);
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path = urlObj.pathname + urlObj.search;
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} catch (e) {
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// If URL parsing fails, try to extract path manually
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// NOTE: If URL parsing fails, try regex fallback
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const match = url.match(/https?:\/\/[^/]+(\/.*)/);
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if (match) path = match[1];
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}
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@@ -57,3 +62,4 @@ const extractPages = async (url, page = 1) => {
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};
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export { extractPages };
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// ══════════════════════════════════════════════════════════════ END: extractPages.helper.js
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@@ -24,6 +24,7 @@ import { getCache, setCache } from "./cache.helper.js";
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// MIRROR CONFIGURATION
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// ══════════════════════════════════════════════════════════════
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// ---- FEATURE: Mirror Domain Configuration ----
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// Default mirrors with names and priority
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const DEFAULT_MIRRORS = [
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{ url: "https://anikototv.to", name: "Primary", priority: 1 },
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@@ -63,6 +64,7 @@ let failedMirrors = new Set();
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// HELPER FUNCTIONS
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// ══════════════════════════════════════════════════════════════
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// ---- FEATURE: Mirror Health Check ----
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/**
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* Check if a mirror is accessible
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* @param {string} baseUrl - Mirror base URL
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@@ -81,6 +83,7 @@ async function checkMirror(baseUrl) {
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}
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}
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// ---- FEATURE: Working Mirror Discovery ----
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/**
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* Get the best available mirror
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* @returns {Promise<string>} Working mirror base URL
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@@ -116,6 +119,7 @@ async function getWorkingMirror() {
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return workingMirror;
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}
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// ---- FEATURE: Mirror Cache Reset ----
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/**
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* Reset mirror cache and failed state
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*/
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@@ -126,6 +130,7 @@ function resetMirrorCache() {
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console.log("[MIRROR] Cache reset");
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}
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// ---- FEATURE: URL Builder ----
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/**
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* Build URL with current mirror
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* @param {string} path - URL path
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@@ -137,6 +142,7 @@ function buildUrl(path, baseUrl = workingMirror) {
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return `${base}${path}`;
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}
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// ---- FEATURE: Resilient Fetch with Mirror Fallback ----
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/**
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* Fetch with automatic mirror fallback
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* @param {string} path - URL path to fetch
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@@ -227,6 +233,7 @@ async function fetchWithMirror(path, options = {}) {
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throw new Error(`All mirrors failed. Last error: ${lastError?.message}`);
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}
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// ---- FEATURE: Mirror Status Reporter ----
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/**
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* Get mirror status for all domains
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* @returns {Promise<Array>}
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@@ -260,3 +267,4 @@ export {
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getMirrorStatus,
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ALL_MIRRORS
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};
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// ══════════════════════════════════════════════════════════════ END: mirror.helper.js
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@@ -15,6 +15,11 @@
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* ======= • ======= • ======= • ======= • =======• =======
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*/
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// ══════════════════════════════════════════════════════════════
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// PAGINATION METADATA
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// ══════════════════════════════════════════════════════════════
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// ---- FEATURE: Pagination Metadata Generator ----
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/**
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* Adds pagination metadata to a response object.
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*
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