为新闻页面增加多语言支持

src/components/news/news-detail-client.tsx

@@ -0,0 +1,69 @@
+"use client";
+
+import Link from "next/link";
+import { useEffect, useState } from "react";
+import type { NewsItem } from "@/data/news";
+import { getInitialLocale, getLocaleMessages, type Locale } from "@/lib/i18n";
+import { PageBreadcrumb } from "@/components/layout/page-breadcrumb";
+import { NewsShare } from "@/components/news/news-share";
+
+function renderMarkdown(markdown: string) {
+  const escape = (text: string) => text.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
+  const inline = (text: string) => escape(text)
+    .replace(/!\[([^\]]*)\]\(([^)]+)\)/g, '<img src="$2" alt="$1" />')
+    .replace(/\*\*(.+?)\*\*/g, "<strong>$1</strong>")
+    .replace(/\*(.+?)\*/g, "<em>$1</em>")
+    .replace(/`(.+?)`/g, "<code>$1</code>");
+  const output: string[] = [];
+  let paragraph: string[] = [];
+  let list: "ul" | "ol" | null = null;
+  let items: string[] = [];
+  const flushParagraph = () => { if (paragraph.length) { output.push(`<p>${inline(paragraph.join(" ").trim())}</p>`); paragraph = []; } };
+  const flushList = () => { if (list && items.length) output.push(`<${list}>${items.map((item) => `<li>${inline(item)}</li>`).join("")}</${list}>`); list = null; items = []; };
+  for (const rawLine of markdown.replace(/\r\n?/g, "\n").split("\n")) {
+    const line = rawLine.trim();
+    if (!line) { flushParagraph(); flushList(); continue; }
+    const heading = line.match(/^(#{1,3})\s+(.+)$/);
+    if (heading) { flushParagraph(); flushList(); output.push(`<h${heading[1].length}>${inline(heading[2])}</h${heading[1].length}>`); continue; }
+    const unordered = line.match(/^[-*]\s+(.+)$/);
+    const ordered = line.match(/^\d+[.)]\s+(.+)$/);
+    if (unordered || ordered) { flushParagraph(); const next = unordered ? "ul" : "ol"; if (list && list !== next) flushList(); list = next; items.push((unordered ?? ordered)![1]); continue; }
+    flushList(); paragraph.push(line);
+  }
+  flushParagraph(); flushList();
+  return output.join("");
+}
+
+export function NewsDetailClient({ catalog, slug }: { catalog: Record<Locale, NewsItem[]>; slug: string }) {
+  const [locale, setLocale] = useState<Locale>("zh-CN");
+  const messages = getLocaleMessages(locale);
+  const item = catalog[locale].find((entry) => entry.slug === slug) ?? catalog["zh-CN"].find((entry) => entry.slug === slug);
+
+  useEffect(() => {
+    const syncLocale = () => setLocale(getInitialLocale());
+    syncLocale();
+    window.addEventListener("kr-locale-change", syncLocale);
+    window.addEventListener("storage", syncLocale);
+    return () => {
+      window.removeEventListener("kr-locale-change", syncLocale);
+      window.removeEventListener("storage", syncLocale);
+    };
+  }, []);
+
+  if (!item) return <main className="news-detail-page"><div className="news-detail-inner"><p>未找到该文章。</p><Link href="/news">{messages.common.backToNews}</Link></div></main>;
+
+  return <main className="news-detail-page">
+    <div className="news-detail-inner">
+      <Link href="/news" className="back-link">← {messages.common.backToNews}</Link>
+      <article className="news-detail-card">
+        <p className="news-detail-tag">{item.category}</p>
+        <h1>{item.title}</h1>
+        <time>{item.date}</time>
+        <div className="news-detail-cover" style={{ backgroundImage: `url(${item.cover})` }} />
+        <div className="news-detail-body" dangerouslySetInnerHTML={{ __html: renderMarkdown(item.body) }} />
+        <NewsShare title={item.title} />
+      </article>
+    </div>
+    <div className="page-bottom-nav"><div className="page-bottom-nav-inner"><PageBreadcrumb items={[{ label: messages.common.home, href: "/" }, { label: messages.common.news, href: "/news" }, { label: item.title }]} /></div></div>
+  </main>;
+}

src/components/news/news-list.tsx

@@ -5,10 +5,11 @@ import { useEffect, useState } from "react";
 import type { NewsItem } from "@/data/news";
 import { getInitialLocale, getLocaleMessages, type Locale } from "@/lib/i18n";
 
-export function NewsList({ news }: { news: NewsItem[] }) {
+export function NewsList({ catalog }: { catalog: Record<Locale, NewsItem[]> }) {
   const [activeCategory, setActiveCategory] = useState<string | null>(null);
   const [locale, setLocale] = useState<Locale>("zh-CN");
   const messages = getLocaleMessages(locale);
+  const news = catalog[locale];
 
   useEffect(() => {
     const syncLocale = () => setLocale(getInitialLocale());

src/components/news/news-page-heading.tsx

@@ -0,0 +1,16 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { getInitialLocale, getLocaleMessages, type Locale } from "@/lib/i18n";
+
+export function NewsPageHeading() {
+  const [locale, setLocale] = useState<Locale>("zh-CN");
+  useEffect(() => {
+    const sync = () => setLocale(getInitialLocale());
+    sync();
+    window.addEventListener("kr-locale-change", sync);
+    window.addEventListener("storage", sync);
+    return () => { window.removeEventListener("kr-locale-change", sync); window.removeEventListener("storage", sync); };
+  }, []);
+  return <h1>{getLocaleMessages(locale).common.news}</h1>;
+}