Chore: Restructure Repository for SvelteKit

_old/core/cache/imageCache.ts

@@ -0,0 +1,134 @@
+import { fetch as tauriFetch } from "@tauri-apps/plugin-http";
+import { store } from "@store/state.svelte";
+import { getUIAccessToken } from "@core/auth";
+
+const cache    = new Map<string, string>();
+const inflight = new Map<string, Promise<string>>();
+const MAX_CONCURRENT = 6;
+let   active   = 0;
+let   drainScheduled = false;
+let   clearing = false;
+
+interface QueueEntry {
+  url:      string;
+  priority: number;
+  resolve:  (v: string) => void;
+  reject:   (e: unknown) => void;
+}
+
+const queue: QueueEntry[] = [];
+
+async function getAuthHeaders(): Promise<Record<string, string>> {
+  const mode = store.settings.serverAuthMode ?? "NONE";
+  if (mode === "UI_LOGIN") {
+    const token = await getUIAccessToken();
+    return token ? { Authorization: `Bearer ${token}` } : {};
+  }
+  if (mode === "BASIC_AUTH") {
+    const user = store.settings.serverAuthUser?.trim() ?? "";
+    const pass = store.settings.serverAuthPass?.trim() ?? "";
+    return user && pass ? { Authorization: `Basic ${btoa(`${user}:${pass}`)}` } : {};
+  }
+  return {};
+}
+
+async function doFetch(url: string): Promise<string> {
+  const headers = await getAuthHeaders();
+  const res = await tauriFetch(url, { method: "GET", headers });
+  if (!res.ok) throw new Error(`${res.status}`);
+  const blob = await res.blob();
+  if (clearing) throw new DOMException("Cancelled", "AbortError");
+  const blobUrl = URL.createObjectURL(blob);
+  cache.set(url, blobUrl);
+  return blobUrl;
+}
+
+function insertSorted(entry: QueueEntry) {
+  let lo = 0, hi = queue.length;
+  while (lo < hi) {
+    const mid = (lo + hi) >>> 1;
+    if (queue[mid].priority > entry.priority) lo = mid + 1;
+    else hi = mid;
+  }
+  queue.splice(lo, 0, entry);
+}
+
+function drain() {
+  drainScheduled = false;
+  while (active < MAX_CONCURRENT && queue.length > 0) {
+    const entry = queue.shift()!;
+    active++;
+    doFetch(entry.url)
+      .then(entry.resolve, entry.reject)
+      .finally(() => { active--; drain(); });
+  }
+}
+
+function scheduleDrain() {
+  if (drainScheduled) return;
+  drainScheduled = true;
+  requestAnimationFrame(drain);
+}
+
+function enqueue(url: string, priority: number): Promise<string> {
+  const promise = new Promise<string>((resolve, reject) => {
+    insertSorted({ url, priority, resolve, reject });
+  }).catch(err => {
+    inflight.delete(url);
+    return Promise.reject(err);
+  });
+  inflight.set(url, promise);
+  scheduleDrain();
+  return promise;
+}
+
+export function getBlobUrl(url: string, priority = 0): Promise<string> {
+  if (!url) return Promise.resolve("");
+  const cached = cache.get(url);
+  if (cached) return Promise.resolve(cached);
+  const existing = inflight.get(url);
+  if (existing) {
+    const idx = queue.findIndex(e => e.url === url);
+    if (idx !== -1 && priority > queue[idx].priority) {
+      const [entry] = queue.splice(idx, 1);
+      entry.priority = priority;
+      insertSorted(entry);
+    }
+    return existing;
+  }
+  return enqueue(url, priority);
+}
+
+export function preloadBlobUrls(urls: string[], basePriority = 0): void {
+  urls.forEach((url, i) => {
+    if (!url || cache.has(url) || inflight.has(url)) return;
+    enqueue(url, basePriority - i);
+  });
+}
+
+export function revokeBlobUrl(url: string): void {
+  const blob = cache.get(url);
+  if (blob) { URL.revokeObjectURL(blob); cache.delete(url); }
+}
+
+export function deprioritizeQueue(): void {
+  for (const entry of queue) entry.priority = 0;
+  queue.sort((a, b) => b.priority - a.priority);
+}
+
+export function cancelQueuedFetches(): void {
+  const dropped = queue.splice(0);
+  for (const entry of dropped) {
+    inflight.delete(entry.url);
+    entry.reject(new DOMException("Cancelled", "AbortError"));
+  }
+}
+
+export function clearBlobCache(): void {
+  clearing = true;
+  cancelQueuedFetches();
+  cache.forEach(blob => URL.revokeObjectURL(blob));
+  cache.clear();
+  inflight.clear();
+  clearing = false;
+}

_old/core/cache/index.ts

@@ -0,0 +1,4 @@
+export * from './memoryCache';
+export * from './pageCache';
+export * from './imageCache';
+export * from './queryCache';

_old/core/cache/memoryCache.ts

@@ -0,0 +1,44 @@
+interface MemEntry<T> {
+  value:     T;
+  expiresAt: number;
+  key:       string;
+}
+
+export class MemoryCache<T> {
+  readonly #cap: number;
+  readonly #ttl: number;
+  readonly #map = new Map<string, MemEntry<T>>();
+
+  constructor(capacity: number, ttlMs: number) {
+    this.#cap = capacity;
+    this.#ttl = ttlMs;
+  }
+
+  get(key: string): T | undefined {
+    const entry = this.#map.get(key);
+    if (!entry) return undefined;
+    if (Date.now() > entry.expiresAt) { this.#map.delete(key); return undefined; }
+    this.#map.delete(key);
+    this.#map.set(key, entry);
+    return entry.value;
+  }
+
+  set(key: string, value: T): void {
+    if (this.#map.has(key)) this.#map.delete(key);
+    else if (this.#map.size >= this.#cap) this.#map.delete(this.#map.keys().next().value!);
+    this.#map.set(key, { value, expiresAt: Date.now() + this.#ttl, key });
+  }
+
+  has(key: string): boolean {
+    const entry = this.#map.get(key);
+    if (!entry) return false;
+    if (Date.now() > entry.expiresAt) { this.#map.delete(key); return false; }
+    return true;
+  }
+
+  delete(key: string): void { this.#map.delete(key); }
+
+  clear(): void { this.#map.clear(); }
+
+  get size(): number { return this.#map.size; }
+}

_old/core/cache/pageCache.ts

@@ -0,0 +1,84 @@
+import { gql, getServerUrl }           from "@api/client";
+import { getBlobUrl, preloadBlobUrls }  from "@core/cache/imageCache";
+import { dedupeRequest }                from "@core/async/batchRequests";
+import { FETCH_CHAPTER_PAGES }          from "@api/mutations/chapters";
+
+const pageCache        = new Map<number, string[]>();
+const inflight         = new Map<number, Promise<string[]>>();
+const resolvedUrlCache = new Map<string, Promise<string>>();
+const aspectCache      = new Map<string, number>();
+
+export function resolveUrl(url: string, useBlob: boolean, priority = 0): Promise<string> {
+  if (!useBlob) return Promise.resolve(url);
+  const cached = resolvedUrlCache.get(url);
+  if (cached) return cached;
+  const p = getBlobUrl(url, priority).catch(err => {
+    resolvedUrlCache.delete(url);
+    return Promise.reject(err);
+  });
+  resolvedUrlCache.set(url, p);
+  return p;
+}
+
+export function fetchPages(
+  chapterId: number,
+  useBlob: boolean,
+  signal?: AbortSignal,
+  priorityPage = 0,
+): Promise<string[]> {
+  const cached = pageCache.get(chapterId);
+  if (cached) return Promise.resolve(cached);
+  if (signal?.aborted) return Promise.reject(new DOMException("Aborted", "AbortError"));
+
+  if (!inflight.has(chapterId)) {
+    const p = dedupeRequest(`chapter-pages:${chapterId}`, () =>
+      gql<{ fetchChapterPages: { pages: string[] } }>(FETCH_CHAPTER_PAGES, { chapterId })
+        .then(d => {
+          const urls = d.fetchChapterPages.pages.map(p => p.startsWith("http") ? p : `${getServerUrl()}${p}`);
+          if (useBlob && urls[priorityPage]) getBlobUrl(urls[priorityPage], 999);
+          pageCache.set(chapterId, urls);
+          return urls;
+        })
+    ).finally(() => inflight.delete(chapterId));
+    inflight.set(chapterId, p);
+  }
+
+  const base = inflight.get(chapterId)!;
+  if (!signal) return base;
+  return new Promise((resolve, reject) => {
+    signal.addEventListener("abort", () => reject(new DOMException("Aborted", "AbortError")), { once: true });
+    base.then(resolve, reject);
+  });
+}
+
+export function measureAspect(url: string, useBlob: boolean): Promise<number> {
+  if (aspectCache.has(url)) return Promise.resolve(aspectCache.get(url)!);
+  return resolveUrl(url, useBlob).then(src => new Promise(res => {
+    const img = new Image();
+    img.onload  = () => { const r = img.naturalHeight > 0 ? img.naturalWidth / img.naturalHeight : 0.67; aspectCache.set(url, r); res(r); };
+    img.onerror = () => res(0.67);
+    img.src = src;
+  }));
+}
+
+export function preloadImage(url: string, useBlob: boolean): void {
+  if (useBlob) { preloadBlobUrls([url], 0); return; }
+  resolveUrl(url, useBlob).then(src => { new Image().src = src; }).catch(() => {});
+}
+
+export function clearResolvedUrlCache(): void {
+  resolvedUrlCache.clear();
+  aspectCache.clear();
+}
+
+export function clearPageCache(chapterId?: number): void {
+  if (chapterId !== undefined) {
+    pageCache.delete(chapterId);
+    inflight.delete(chapterId);
+  } else {
+    pageCache.clear();
+    inflight.clear();
+    resolvedUrlCache.clear();
+    aspectCache.clear();
+  }
+}

_old/core/cache/queryCache.ts

@@ -0,0 +1,241 @@
+interface Entry<T> {
+  promise:   Promise<T>;
+  fetchedAt: number;
+  fetcher?:  () => Promise<T>;
+  ttl?:      number;
+}
+
+const store  = new Map<string, Entry<unknown>>();
+const subs   = new Map<string, Set<() => void>>();
+const keyToGroups = new Map<string, Set<string>>();
+const groups      = new Map<string, Set<string>>();
+
+export const DEFAULT_TTL_MS = 5 * 60 * 1_000;
+
+function notify(key: string) { subs.get(key)?.forEach(cb => cb()); }
+
+function registerGroups(key: string, group?: string | string[]) {
+  if (!group) return;
+  for (const tag of Array.isArray(group) ? group : [group]) {
+    if (!groups.has(tag)) groups.set(tag, new Set());
+    groups.get(tag)!.add(key);
+    if (!keyToGroups.has(key)) keyToGroups.set(key, new Set());
+    keyToGroups.get(key)!.add(tag);
+  }
+}
+
+function unregisterKey(key: string) {
+  const tags = keyToGroups.get(key);
+  if (tags) {
+    for (const tag of tags) groups.get(tag)?.delete(key);
+    keyToGroups.delete(key);
+  }
+}
+
+export const cache = {
+  get<T>(key: string, fetcher: () => Promise<T>, ttl = DEFAULT_TTL_MS, group?: string | string[]): Promise<T> {
+    const existing = store.get(key) as Entry<T> | undefined;
+    if (existing && Date.now() - existing.fetchedAt < ttl) return existing.promise;
+    const promise = fetcher().catch(err => {
+      if (err?.name !== "AbortError") store.delete(key);
+      return Promise.reject(err);
+    }) as Promise<T>;
+    store.set(key, { promise, fetchedAt: Date.now(), fetcher: fetcher as () => Promise<unknown>, ttl });
+    registerGroups(key, group);
+    promise.then(() => notify(key)).catch(() => {});
+    return promise;
+  },
+
+  set<T>(key: string, value: T, group?: string | string[]) {
+    const existing = store.get(key) as Entry<T> | undefined;
+    store.set(key, {
+      promise: Promise.resolve(value),
+      fetchedAt: Date.now(),
+      fetcher: existing?.fetcher,
+      ttl: existing?.ttl,
+    });
+    registerGroups(key, group);
+    notify(key);
+  },
+
+  update<T>(key: string, fn: (prev: T) => T) {
+    const existing = store.get(key) as Entry<T> | undefined;
+    if (!existing) return;
+    const next = existing.promise.then(fn);
+    store.set(key, { ...existing, promise: next, fetchedAt: Date.now() });
+    next.then(() => notify(key)).catch(() => {});
+  },
+
+  refresh<T>(key: string): Promise<T> | undefined {
+    const existing = store.get(key) as Entry<T> | undefined;
+    if (!existing?.fetcher) return undefined;
+    const promise = (existing.fetcher as () => Promise<T>)().catch(err => {
+      if (err?.name !== "AbortError") store.delete(key);
+      return Promise.reject(err);
+    });
+    store.set(key, { ...existing, promise: promise as Promise<unknown>, fetchedAt: Date.now() });
+    promise.then(() => notify(key)).catch(() => {});
+    return promise;
+  },
+
+  refreshGroup(tag: string): void {
+    const keys = groups.get(tag);
+    if (!keys) return;
+    for (const key of [...keys]) {
+      const existing = store.get(key);
+      if (existing?.fetcher) {
+        const promise = existing.fetcher().catch(err => {
+          if (err?.name !== "AbortError") store.delete(key);
+          return Promise.reject(err);
+        });
+        store.set(key, { ...existing, promise, fetchedAt: Date.now() });
+        promise.then(() => notify(key)).catch(() => {});
+      }
+    }
+  },
+
+  has(key: string): boolean { return store.has(key); },
+
+  ageOf(key: string): number | undefined {
+    const e = store.get(key);
+    return e ? Date.now() - e.fetchedAt : undefined;
+  },
+
+  isStale(key: string): boolean {
+    const e = store.get(key);
+    if (!e) return true;
+    return Date.now() - e.fetchedAt >= (e.ttl ?? DEFAULT_TTL_MS);
+  },
+
+  clear(key: string) {
+    unregisterKey(key);
+    store.delete(key);
+    notify(key);
+  },
+
+  clearGroup(tag: string) {
+    const keys = groups.get(tag);
+    if (!keys) return;
+    for (const key of [...keys]) {
+      keyToGroups.get(key)?.delete(tag);
+      if (keyToGroups.get(key)?.size === 0) keyToGroups.delete(key);
+      store.delete(key);
+      notify(key);
+    }
+    groups.delete(tag);
+  },
+
+  clearAll() {
+    const allKeys = [...store.keys()];
+    store.clear();
+    groups.clear();
+    keyToGroups.clear();
+    allKeys.forEach(notify);
+  },
+
+  subscribe(key: string, cb: () => void): () => void {
+    if (!subs.has(key)) subs.set(key, new Set());
+    subs.get(key)!.add(cb);
+    return () => subs.get(key)?.delete(cb);
+  },
+};
+
+export const CACHE_GROUPS = {
+  LIBRARY: "g:library",
+  SOURCES: "g:sources",
+} as const;
+
+export const CACHE_KEYS = {
+  LIBRARY:    "library",
+  RECENT_UPDATES: "recent_updates",
+  ALL_MANGA:  "all_manga_unfiltered",
+  CATEGORIES: "categories",
+  SEARCH:     "search_all_manga",
+  SOURCES:    "sources",
+  POPULAR:    "popular",
+  GENRE:    (genre: string) => `genre:${genre}`,
+  MANGA:    (id: number)    => `manga:${id}`,
+  CHAPTERS: (id: number)    => `chapters:${id}`,
+
+  sourceMangaPages(sourceId: string, type: "POPULAR" | "LATEST" | "SEARCH", query?: string | string[]): string {
+    const q = Array.isArray(query) ? [...query].sort().join("+") : (query ?? "");
+    return `pages:${sourceId}:${type}:${q}`;
+  },
+
+  sourceMangaPage(sourceId: string, type: "POPULAR" | "LATEST" | "SEARCH", page: number, query?: string | string[]): string {
+    const q = Array.isArray(query) ? [...query].sort().join("+") : (query ?? "");
+    return `page:${sourceId}:${type}:${page}:${q}`;
+  },
+} as const;
+
+const inflight = new Map<string, Promise<unknown>>();
+
+export function deduped<T>(key: string, fetcher: () => Promise<T>): Promise<T> {
+  if (inflight.has(key)) return inflight.get(key) as Promise<T>;
+  const p = fetcher().finally(() => inflight.delete(key));
+  inflight.set(key, p);
+  return p;
+}
+
+const _pageSets = new Map<string, Set<number>>();
+
+export interface PageSet {
+  add(page: number): void;
+  pages(): Set<number>;
+  next(): number;
+  clear(): void;
+}
+
+export function getPageSet(sourceId: string, type: "POPULAR" | "LATEST" | "SEARCH", query?: string | string[]): PageSet {
+  const key = CACHE_KEYS.sourceMangaPages(sourceId, type, query);
+  return {
+    add(page)  { if (!_pageSets.has(key)) _pageSets.set(key, new Set()); _pageSets.get(key)!.add(page); },
+    pages()    { return new Set(_pageSets.get(key) ?? []); },
+    next()     { const s = _pageSets.get(key); return s?.size ? Math.max(...s) + 1 : 1; },
+    clear()    { _pageSets.delete(key); },
+  };
+}
+
+const FRECENCY_KEY         = "moku-source-frecency";
+const MAX_FRECENCY_SOURCES = 4;
+type FrecencyMap = Record<string, number>;
+
+function loadFrecency(): FrecencyMap {
+  try { const r = localStorage.getItem(FRECENCY_KEY); return r ? JSON.parse(r) : {}; }
+  catch { return {}; }
+}
+
+function saveFrecency(map: FrecencyMap) {
+  try { localStorage.setItem(FRECENCY_KEY, JSON.stringify(map)); } catch {}
+}
+
+export function recordSourceAccess(sourceId: string) {
+  if (!sourceId || sourceId === "0") return;
+  const map = loadFrecency();
+  map[sourceId] = (map[sourceId] ?? 0) + 1;
+  saveFrecency(map);
+}
+
+export function getTopSources<T extends { id: string }>(sources: T[]): T[] {
+  const map = loadFrecency();
+  const withScore = sources.map(s => ({ s, score: map[s.id] ?? 0 }));
+  if (withScore.some(x => x.score > 0)) {
+    return withScore.sort((a, b) => b.score - a.score).slice(0, MAX_FRECENCY_SOURCES).map(x => x.s);
+  }
+  return sources.slice(0, MAX_FRECENCY_SOURCES);
+}
+
+export async function refreshMangaCache(mangaId: number, thumbnailUrl?: string): Promise<void> {
+  const didRefresh = cache.refresh(CACHE_KEYS.MANGA(mangaId));
+  if (!didRefresh) cache.clear(CACHE_KEYS.MANGA(mangaId));
+
+  cache.clear(CACHE_KEYS.CHAPTERS(mangaId));
+  cache.clear(CACHE_KEYS.LIBRARY);
+  cache.clear(CACHE_KEYS.ALL_MANGA);
+
+  if (thumbnailUrl) {
+    const { revokeBlobUrl, getBlobUrl } = await import("@core/cache/imageCache");
+    revokeBlobUrl(thumbnailUrl);
+    getBlobUrl(thumbnailUrl, 999).catch(() => {});
+  }
+}