429 lines
12 KiB
TypeScript
429 lines
12 KiB
TypeScript
import Parser from "rss-parser";
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import {
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openAI_ClassifyFeed,
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openAI_GeneratePodcastContent,
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} from "../services/llm.js";
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import { generateTTS } from "../services/tts.js";
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import {
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saveFeed,
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getFeedByUrl,
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saveArticle,
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getUnprocessedArticles,
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markArticleAsProcessed,
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saveEpisode,
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} from "../services/database.js";
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import { updatePodcastRSS } from "../services/podcast.js";
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import { config } from "../services/config.js";
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import crypto from "crypto";
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import fs from "fs/promises";
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interface FeedItem {
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id?: string;
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title?: string;
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link?: string;
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pubDate?: string;
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contentSnippet?: string;
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content?: string;
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description?: string;
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}
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/**
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* Main batch processing function
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* Processes all feeds and generates podcasts for new articles
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*/
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export async function batchProcess(): Promise<void> {
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try {
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console.log("🚀 Starting enhanced batch process...");
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// Load feed URLs from file
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const feedUrls = await loadFeedUrls();
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if (feedUrls.length === 0) {
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console.log("ℹ️ No feed URLs found.");
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return;
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}
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console.log(`📡 Processing ${feedUrls.length} feeds...`);
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// Process each feed URL
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for (const url of feedUrls) {
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try {
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await processFeedUrl(url);
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} catch (error) {
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console.error(`❌ Failed to process feed ${url}:`, error);
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// Continue with other feeds
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}
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}
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// Process unprocessed articles and generate podcasts
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await processUnprocessedArticles();
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console.log(
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"✅ Enhanced batch process completed:",
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new Date().toISOString(),
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);
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} catch (error) {
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console.error("💥 Batch process failed:", error);
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throw error;
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}
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}
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/**
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* Load feed URLs from configuration file
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*/
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async function loadFeedUrls(): Promise<string[]> {
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try {
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const data = await fs.readFile(config.paths.feedUrlsFile, "utf-8");
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return data
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.split("\n")
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.map((url) => url.trim())
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.filter((url) => url.length > 0 && !url.startsWith("#"));
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} catch (err) {
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console.warn(
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`⚠️ Failed to read feed URLs file: ${config.paths.feedUrlsFile}`,
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);
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console.warn("📝 Please create the file with one RSS URL per line.");
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return [];
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}
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}
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/**
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* Process a single feed URL and discover new articles
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*/
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async function processFeedUrl(url: string): Promise<void> {
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if (!url || !url.startsWith("http")) {
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throw new Error(`Invalid feed URL: ${url}`);
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}
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console.log(`🔍 Processing feed: ${url}`);
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try {
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// Parse RSS feed
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const parser = new Parser<FeedItem>();
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const feed = await parser.parseURL(url);
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// Get or create feed record
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let feedRecord = await getFeedByUrl(url);
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if (!feedRecord) {
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console.log(`➕ Adding new feed: ${feed.title || url}`);
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await saveFeed({
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url,
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title: feed.title,
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description: feed.description,
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lastUpdated: new Date().toISOString(),
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active: true,
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});
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feedRecord = await getFeedByUrl(url);
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}
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if (!feedRecord) {
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throw new Error("Failed to create or retrieve feed record");
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}
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// Process feed items and save new articles
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const newArticlesCount = await discoverNewArticles(
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feedRecord,
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feed.items || [],
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);
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// Update feed last updated timestamp
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if (newArticlesCount > 0) {
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await saveFeed({
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url: feedRecord.url,
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title: feedRecord.title,
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description: feedRecord.description,
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lastUpdated: new Date().toISOString(),
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active: feedRecord.active,
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});
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}
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console.log(
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`📊 Feed processed: ${feed.title || url} (${newArticlesCount} new articles)`,
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);
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} catch (error) {
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console.error(`💥 Error processing feed ${url}:`, error);
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throw error;
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}
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}
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/**
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* Discover and save new articles from feed items
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*/
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async function discoverNewArticles(
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feed: any,
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items: FeedItem[],
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): Promise<number> {
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let newArticlesCount = 0;
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for (const item of items) {
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if (!item.title || !item.link) {
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console.warn("⚠️ Skipping item without title or link");
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continue;
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}
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try {
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// Generate article ID based on link
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const articleId = await saveArticle({
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feedId: feed.id,
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title: item.title,
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link: item.link,
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description: item.description || item.contentSnippet,
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content: item.content,
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pubDate: item.pubDate || new Date().toISOString(),
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processed: false,
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});
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// Check if this is truly a new article
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if (articleId) {
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newArticlesCount++;
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console.log(`📄 New article discovered: ${item.title}`);
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}
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} catch (error) {
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console.error(`❌ Error saving article: ${item.title}`, error);
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}
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}
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return newArticlesCount;
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}
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/**
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* Process unprocessed articles and generate podcasts
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*/
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async function processUnprocessedArticles(): Promise<void> {
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console.log("🎧 Processing unprocessed articles...");
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try {
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// Get unprocessed articles (limit to prevent overwhelming)
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const unprocessedArticles = await getUnprocessedArticles(20);
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if (unprocessedArticles.length === 0) {
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console.log("ℹ️ No unprocessed articles found.");
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return;
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}
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console.log(`🎯 Found ${unprocessedArticles.length} unprocessed articles`);
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for (const article of unprocessedArticles) {
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try {
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await generatePodcastForArticle(article);
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await markArticleAsProcessed(article.id);
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console.log(`✅ Podcast generated for: ${article.title}`);
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await updatePodcastRSS(); // Update RSS after each article
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} catch (error) {
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console.error(
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`❌ Failed to generate podcast for article: ${article.title}`,
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error,
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);
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// Don't mark as processed if generation failed
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}
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}
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} catch (error) {
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console.error("💥 Error processing unprocessed articles:", error);
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throw error;
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}
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}
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/**
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* Generate podcast for a single article
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*/
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async function generatePodcastForArticle(article: any): Promise<void> {
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console.log(`🎤 Generating podcast for: ${article.title}`);
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try {
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// Get feed information for context
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const feed = await getFeedByUrl(article.feedId);
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const feedTitle = feed?.title || "Unknown Feed";
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// Classify the article/feed
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const category = await openAI_ClassifyFeed(
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`${feedTitle}: ${article.title}`,
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);
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console.log(`🏷️ Article classified as: ${category}`);
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// Generate podcast content for this single article
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const podcastContent = await openAI_GeneratePodcastContent(article.title, [
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{
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title: article.title,
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link: article.link,
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},
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]);
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// Generate unique ID for the episode
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const episodeId = crypto.randomUUID();
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// Generate TTS audio
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const audioFilePath = await generateTTS(episodeId, podcastContent);
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console.log(`🔊 Audio generated: ${audioFilePath}`);
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// Get audio file stats
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const audioStats = await getAudioFileStats(audioFilePath);
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// Save episode
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await saveEpisode({
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articleId: article.id,
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title: `${category}: ${article.title}`,
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description:
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article.description || `Podcast episode for: ${article.title}`,
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audioPath: audioFilePath,
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duration: audioStats.duration,
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fileSize: audioStats.size,
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});
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console.log(`💾 Episode saved for article: ${article.title}`);
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} catch (error) {
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console.error(
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`💥 Error generating podcast for article: ${article.title}`,
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error,
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);
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throw error;
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}
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}
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/**
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* Get audio file statistics
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*/
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async function getAudioFileStats(
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audioFileName: string,
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): Promise<{ duration?: number; size: number }> {
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try {
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const audioPath = `${config.paths.podcastAudioDir}/${audioFileName}`;
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const stats = await fs.stat(audioPath);
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return {
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size: stats.size,
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// TODO: Add duration calculation using ffprobe if needed
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duration: undefined,
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};
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} catch (error) {
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console.warn(
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`⚠️ Could not get audio file stats for ${audioFileName}:`,
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error,
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);
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return { size: 0 };
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}
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}
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/**
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* Legacy function compatibility - process feed URL the old way
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* This is kept for backward compatibility during migration
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*/
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// Commented out to fix TypeScript unused variable warnings
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/* async function legacyProcessFeedUrl(url: string): Promise<void> {
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console.log(`🔄 Legacy processing for: ${url}`);
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const parser = new Parser<FeedItem>();
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const feed = await parser.parseURL(url);
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// Feed classification
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const feedTitle = feed.title || url;
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const category = await openAI_ClassifyFeed(feedTitle);
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console.log(`Feed classified: ${feedTitle} - ${category}`);
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const latest5Items = (feed.items || []).slice(0, 5);
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if (latest5Items.length === 0) {
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console.log(`No items found in feed: ${feedTitle}`);
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return;
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}
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// Generate podcast content (old way - multiple articles in one podcast)
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console.log(`Generating podcast content for: ${feedTitle}`);
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const validItems = latest5Items.filter((item): item is FeedItem => {
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return !!item.title && !!item.link;
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});
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if (validItems.length === 0) {
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console.log(`No valid items found in feed: ${feedTitle}`);
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return;
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}
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const podcastContent = await openAI_GeneratePodcastContent(
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feedTitle,
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validItems as any
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);
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// Generate unique ID for this feed and category combination
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const feedUrlHash = crypto.createHash("md5").update(url).digest("hex");
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const categoryHash = crypto.createHash("md5").update(category).digest("hex");
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const timestamp = new Date().getTime();
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const uniqueId = `${feedUrlHash}-${categoryHash}-${timestamp}`;
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const audioFilePath = await generateTTS(uniqueId, podcastContent);
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console.log(`Audio file generated: ${audioFilePath}`);
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// Save as legacy episode
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const firstItem = latest5Items[0];
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if (!firstItem) {
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console.warn("No items found");
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return;
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}
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const pubDate = new Date(firstItem.pubDate || new Date());
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// For now, save using the new episode structure
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// TODO: Remove this once migration is complete
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const tempArticleId = crypto.randomUUID();
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await saveEpisode({
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articleId: tempArticleId,
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title: `${category}: ${feedTitle}`,
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description: `Legacy podcast for feed: ${feedTitle}`,
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audioPath: audioFilePath
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});
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console.log(`Legacy episode saved: ${category} - ${feedTitle}`);
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// Mark individual articles as processed (legacy)
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for (const item of latest5Items) {
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try {
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const itemId = (item as any)["id"] as string | undefined;
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const fallbackId = item.link || item.title || JSON.stringify(item);
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const finalItemId = itemId && typeof itemId === "string" && itemId.trim() !== ""
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? itemId
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: `fallback-${Buffer.from(fallbackId).toString("base64")}`;
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if (!finalItemId || finalItemId.trim() === "") {
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console.warn(`Could not generate ID for feed item`, {
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feedUrl: url,
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itemTitle: item.title,
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itemLink: item.link,
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});
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continue;
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}
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const alreadyProcessed = await markAsProcessed(url, finalItemId);
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if (alreadyProcessed) {
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console.log(`Already processed: ${finalItemId}`);
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}
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} catch (error) {
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console.error(`Error marking item as processed:`, error);
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}
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}
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} */
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// Export function for use in server
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export async function addNewFeedUrl(feedUrl: string): Promise<void> {
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if (!feedUrl || !feedUrl.startsWith("http")) {
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throw new Error("Invalid feed URL");
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}
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try {
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// Add to feeds table
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await saveFeed({
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url: feedUrl,
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active: true,
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});
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console.log(`✅ Feed URL added: ${feedUrl}`);
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} catch (error) {
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console.error(`❌ Failed to add feed URL: ${feedUrl}`, error);
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throw error;
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}
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}
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// Run if this script is executed directly
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if (import.meta.main) {
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batchProcess().catch((err) => {
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console.error("💥 Batch process failed:", err);
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process.exit(1);
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});
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}
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