电子书架

2026-04-29 11:30:45 +08:00
parent 0d99953e99
commit 3acb4e82cd
13 changed files with 891 additions and 255 deletions
@@ -0,0 +1,129 @@
+'use client';
+
+import { BookAcquisitionLink, BookDetail, BookListItem, BookReadRecord, BookShelfItem } from './book.types';
+
+const BOOK_ROUTE_CACHE_KEY = 'moontv_books_route_cache_v1';
+const MAX_CACHE_ITEMS = 300;
+
+export interface BookRouteCacheItem {
+  sourceId: string;
+  bookId: string;
+  sourceName?: string;
+  title?: string;
+  author?: string;
+  cover?: string;
+  summary?: string;
+  detailHref?: string;
+  acquisitionHref?: string;
+  acquisitionLinks?: BookAcquisitionLink[];
+  format?: 'epub' | 'pdf';
+  updatedAt: number;
+}
+
+function buildKey(sourceId: string, bookId: string) {
+  return `${sourceId}+${bookId}`;
+}
+
+function readCache(): Record<string, BookRouteCacheItem> {
+  if (typeof window === 'undefined') return {};
+  try {
+    const raw = localStorage.getItem(BOOK_ROUTE_CACHE_KEY);
+    return raw ? (JSON.parse(raw) as Record<string, BookRouteCacheItem>) : {};
+  } catch {
+    return {};
+  }
+}
+
+function writeCache(cache: Record<string, BookRouteCacheItem>) {
+  if (typeof window === 'undefined') return;
+  const entries = Object.entries(cache)
+    .sort(([, a], [, b]) => (b.updatedAt || 0) - (a.updatedAt || 0))
+    .slice(0, MAX_CACHE_ITEMS);
+  localStorage.setItem(BOOK_ROUTE_CACHE_KEY, JSON.stringify(Object.fromEntries(entries)));
+}
+
+export function getBookRouteCache(sourceId: string, bookId: string): BookRouteCacheItem | null {
+  const item = readCache()[buildKey(sourceId, bookId)];
+  return item || null;
+}
+
+export function saveBookRouteCache(item: Omit<BookRouteCacheItem, 'updatedAt'> & { updatedAt?: number }) {
+  if (typeof window === 'undefined' || !item.sourceId || !item.bookId) return;
+  const cache = readCache();
+  const key = buildKey(item.sourceId, item.bookId);
+  const prev = cache[key];
+  cache[key] = {
+    ...prev,
+    ...item,
+    acquisitionLinks: item.acquisitionLinks || prev?.acquisitionLinks || [],
+    updatedAt: item.updatedAt || Date.now(),
+  };
+  writeCache(cache);
+}
+
+export function cacheBookListItem(item: BookListItem) {
+  saveBookRouteCache({
+    sourceId: item.sourceId,
+    bookId: item.id,
+    sourceName: item.sourceName,
+    title: item.title,
+    author: item.author,
+    cover: item.cover,
+    summary: item.summary,
+    detailHref: item.detailHref,
+    acquisitionLinks: item.acquisitionLinks,
+  });
+}
+
+export function cacheBookDetail(detail: BookDetail) {
+  const readable = detail.acquisitionLinks.find((item) => item.type.toLowerCase().includes('epub') || item.type.toLowerCase().includes('pdf'));
+  saveBookRouteCache({
+    sourceId: detail.sourceId,
+    bookId: detail.id,
+    sourceName: detail.sourceName,
+    title: detail.title,
+    author: detail.author,
+    cover: detail.cover,
+    summary: detail.summary,
+    detailHref: detail.detailHref,
+    acquisitionHref: readable?.href,
+    format: readable?.type.toLowerCase().includes('pdf') ? 'pdf' : readable ? 'epub' : undefined,
+    acquisitionLinks: detail.acquisitionLinks,
+  });
+}
+
+export function cacheBookShelfItem(item: BookShelfItem) {
+  saveBookRouteCache({
+    sourceId: item.sourceId,
+    bookId: item.bookId,
+    sourceName: item.sourceName,
+    title: item.title,
+    author: item.author,
+    cover: item.cover,
+    detailHref: item.detailHref,
+    acquisitionHref: item.acquisitionHref,
+    format: item.format,
+  });
+}
+
+export function cacheBookReadRecord(item: BookReadRecord) {
+  saveBookRouteCache({
+    sourceId: item.sourceId,
+    bookId: item.bookId,
+    sourceName: item.sourceName,
+    title: item.title,
+    author: item.author,
+    cover: item.cover,
+    detailHref: item.detailHref,
+    acquisitionHref: item.acquisitionHref,
+    format: item.format,
+  });
+}
+
+export function buildBookDetailPath(sourceId: string, bookId: string) {
+  return `/books/detail?sourceId=${encodeURIComponent(sourceId)}&bookId=${encodeURIComponent(bookId)}`;
+}
+
+export function buildBookReadPath(sourceId: string, bookId: string) {
+  return `/books/read?sourceId=${encodeURIComponent(sourceId)}&bookId=${encodeURIComponent(bookId)}`;
+}