import { NextResponse } from "next/server";
import { readFileSync, existsSync } from "fs";
import { join } from "path";

const PODCAST_DIR = "/Users/mattbruce/.openclaw/workspace/podcast";
const RSS_FILE = join(PODCAST_DIR, "rss.xml");

export async function GET() {
  try {
    // Check if RSS file exists
    if (!existsSync(RSS_FILE)) {
      // Return a default RSS feed if none exists yet
      const defaultFeed = `<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">
    <channel>
        <title>OpenClaw Daily Digest</title>
        <link>https://mission-control-rho-pink.vercel.app/podcast</link>
        <language>en-us</language>
        <copyright>© 2026 OpenClaw</copyright>
        <itunes:author>OpenClaw</itunes:author>
        <description>Daily tech news and insights for developers</description>
        <itunes:image href="https://mission-control-rho-pink.vercel.app/podcast-cover.jpg"/>
        <itunes:category text="Technology"/>
        <itunes:explicit>no</itunes:explicit>
        <item>
            <title>Welcome to OpenClaw Daily Digest Podcast</title>
            <description>Your daily tech news podcast is coming soon. Check back for the first episode!</description>
            <pubDate>${new Date().toUTCString()}</pubDate>
            <guid isPermaLink="false">welcome</guid>
        </item>
    </channel>
</rss>`;
      
      return new NextResponse(defaultFeed, {
        headers: {
          "Content-Type": "application/rss+xml",
          "Cache-Control": "public, max-age=3600",
        },
      });
    }

    // Read and serve the RSS file
    const rssContent = readFileSync(RSS_FILE, "utf-8");
    
    return new NextResponse(rssContent, {
      headers: {
        "Content-Type": "application/rss+xml",
        "Cache-Control": "public, max-age=3600",
      },
    });
  } catch (error) {
    console.error("Error serving RSS feed:", error);
    return NextResponse.json(
      { error: "Failed to load RSS feed" },
      { status: 500 }
    );
  }
}