feat: read feed URLs from file

.env.example

@@ -16,3 +16,6 @@ PODCAST_LANGUAGE=ja
 PODCAST_AUTHOR=管理者
 PODCAST_CATEGORIES=Technology
 PODCAST_TTL=60
+
+# フィードURL一覧ファイルの設定
+FEED_URLS_FILE=feed_urls.txt

scripts/fetch_and_generate.ts

@@ -12,9 +12,28 @@ interface FeedItem {
   contentSnippet?: string;
 }
 
+import fs from "fs/promises";
+import path from "path";
+import { fileURLToPath } from "url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
 async function main() {
   const parser = new Parser<FeedItem>();
-  const feedUrls = ["https://example.com/feed1.rss"];
+  const feedUrlsFile = process.env.FEED_URLS_FILE ?? "feed_urls.txt";
+  const feedUrlsPath = path.resolve(__dirname, "..", feedUrlsFile);
+  let feedUrls: string[];
+  try {
+    const data = await fs.readFile(feedUrlsPath, "utf-8");
+    feedUrls = data
+      .split("\n")
+      .map((url) => url.trim())
+      .filter((url) => url.length > 0);
+  } catch (err) {
+    console.warn(`フィードURLファイルの読み込みに失敗: ${feedUrlsFile}`);
+    feedUrls = [];
+  }
 
   for (const url of feedUrls) {
     const feed = await parser.parseURL(url);
@@ -29,7 +48,7 @@ async function main() {
         pub.getMonth() === yesterday.getMonth() &&
         pub.getDate() === yesterday.getDate()
       ) {
-        const already = await markAsProcessed(url, item['id'] as string);
+        const already = await markAsProcessed(url, item["id"] as string);
         if (already) continue;
 
         const scriptText = await openAI_GenerateScript({
@@ -37,10 +56,13 @@ async function main() {
           link: item.link ?? "",
           contentSnippet: item.contentSnippet ?? "",
         });
-        const audioFilePath = await generateTTS(item['id'] as string, scriptText);
+        const audioFilePath = await generateTTS(
+          item["id"] as string,
+          scriptText,
+        );
 
         await saveEpisode({
-          id: item['id'] as string,
+          id: item["id"] as string,
           title: item.title ?? "",
           pubDate: pub.toISOString(),
           audioPath: audioFilePath,