feat: accessibility enhancement

closes #3

scripts/generate-update-sitemaps.js

@@ -0,0 +1,101 @@
+import { promises as fs } from 'fs';
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+import xml2js from 'xml2js';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const LANGUAGES = ['en-US', 'zh-CN', 'zh-TW'];
+const BASE_URL = 'starset.wiki'; // Replace with your actual domain
+
+async function getYearlyIndices(lang) {
+    const indexDir = join(__dirname, '..', 'data', lang, 'updates', 'index');
+    try {
+        const files = await fs.readdir(indexDir);
+        return files.filter(file => file.match(/^\d{4}\.json$/));
+    } catch (err) {
+        console.error(`Error reading index directory for ${lang}:`, err);
+        return [];
+    }
+}
+
+async function generateUpdateUrls(lang) {
+    const yearFiles = await getYearlyIndices(lang);
+    const urls = [];
+    
+    for (const yearFile of yearFiles) {
+        try {
+            const content = await fs.readFile(
+                join(__dirname, '..', 'data', lang, 'updates', 'index', yearFile),
+                'utf-8'
+            );
+            const data = JSON.parse(content);
+            
+            if (data.updates) {
+                for (const update of data.updates) {
+                    urls.push({
+                        loc: `https://${BASE_URL}/updates/${update.id}`,
+                        lastmod: update.date,
+                        changefreq: 'monthly',
+                        priority: '0.7'
+                    });
+                }
+            }
+        } catch (err) {
+            console.error(`Error processing ${yearFile} for ${lang}:`, err);
+        }
+    }
+    
+    return urls;
+}
+
+async function generateSitemap(urls) {
+    const sitemap = {
+        urlset: {
+            $: {
+                xmlns: 'http://www.sitemaps.org/schemas/sitemap/0.9'
+            },
+            url: urls
+        }
+    };
+
+    const builder = new xml2js.Builder();
+    return builder.buildObject(sitemap);
+}
+
+async function mergeSitemaps() {
+    const parser = new xml2js.Parser();
+    const mainSitemapPath = join(__dirname, '..', 'dist', 'sitemap.xml');
+    
+    try {
+        const mainSitemapContent = await fs.readFile(mainSitemapPath, 'utf-8');
+        const mainSitemap = await parser.parseStringPromise(mainSitemapContent);
+        
+        // Filter out existing update URLs while maintaining order
+        const existingUrls = mainSitemap.urlset.url.filter(url => 
+            !url.loc[0].includes('/updates/'));
+        
+        mainSitemap.urlset.url = existingUrls;
+        
+        // Add language-specific update URLs at the end
+        for (const lang of LANGUAGES) {
+            const updateUrls = await generateUpdateUrls(lang);
+            mainSitemap.urlset.url.push(...updateUrls);
+        }
+        
+        const builder = new xml2js.Builder();
+        const newSitemap = builder.buildObject(mainSitemap);
+        
+        await fs.writeFile(mainSitemapPath, newSitemap);
+        console.log('Successfully updated sitemap.xml in dist directory');
+    } catch (err) {
+        console.error('Error merging sitemaps:', err);
+        if (err.code === 'ENOENT') {
+            console.error('Make sure the dist directory exists and contains sitemap.xml');
+        }
+    }
+}
+
+// Run the script
+mergeSitemaps().catch(console.error);