Files
VoiceRSSSummary/services/podcast.ts
2025-06-07 13:45:48 +09:00

91 lines
3.2 KiB
TypeScript

import { promises as fs } from "fs";
import { dirname } from "path";
import { Episode, fetchAllEpisodes } from "./database.js";
import path from "node:path";
import fsSync from "node:fs";
import { config } from "./config.js";
function escapeXml(text: string): string {
return text
.replace(/&/g, "&")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/"/g, "&quot;")
.replace(/'/g, "&#39;");
}
function createItemXml(episode: Episode): string {
const fileUrl = `${config.podcast.baseUrl}/podcast_audio/${path.basename(episode.audioPath)}`;
const pubDate = new Date(episode.createdAt).toUTCString();
let fileSize = 0;
try {
const audioPath = path.join(config.paths.podcastAudioDir, episode.audioPath);
if (fsSync.existsSync(audioPath)) {
fileSize = fsSync.statSync(audioPath).size;
}
} catch (error) {
console.warn(`Could not get file size for ${episode.audioPath}:`, error);
}
return `
<item>
<title><![CDATA[${escapeXml(episode.title)}]]></title>
<description><![CDATA[${escapeXml(episode.title)}]]></description>
<author>${escapeXml(config.podcast.author)}</author>
<category>${escapeXml(config.podcast.categories)}</category>
<language>${config.podcast.language}</language>
<ttl>${config.podcast.ttl}</ttl>
<enclosure url="${escapeXml(fileUrl)}" length="${fileSize}" type="audio/mpeg" />
<guid>${escapeXml(fileUrl)}</guid>
<pubDate>${pubDate}</pubDate>
</item>`;
}
export async function updatePodcastRSS(): Promise<void> {
try {
const episodes: Episode[] = await fetchAllEpisodes();
// Filter episodes to only include those with valid audio files
const validEpisodes = episodes.filter(episode => {
try {
const audioPath = path.join(config.paths.podcastAudioDir, episode.audioPath);
return fsSync.existsSync(audioPath);
} catch (error) {
console.warn(`Audio file not found for episode: ${episode.title}`);
return false;
}
});
console.log(`Found ${episodes.length} episodes, ${validEpisodes.length} with valid audio files`);
const lastBuildDate = new Date().toUTCString();
const itemsXml = validEpisodes.map(createItemXml).join("\n");
const outputPath = path.join(config.paths.publicDir, "podcast.xml");
// Create RSS XML content
const rssXml = `<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0">
<channel>
<title>${escapeXml(config.podcast.title)}</title>
<link>${escapeXml(config.podcast.link)}</link>
<description><![CDATA[${escapeXml(config.podcast.description)}]]></description>
<language>${config.podcast.language}</language>
<lastBuildDate>${lastBuildDate}</lastBuildDate>
<ttl>${config.podcast.ttl}</ttl>
<author>${escapeXml(config.podcast.author)}</author>
<category>${escapeXml(config.podcast.categories)}</category>${itemsXml}
</channel>
</rss>`;
// Ensure directory exists
await fs.mkdir(dirname(outputPath), { recursive: true });
await fs.writeFile(outputPath, rssXml);
console.log(`RSS feed updated with ${validEpisodes.length} episodes (audio files verified)`);
} catch (error) {
console.error("Error updating podcast RSS:", error);
throw error;
}
}