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use std::env;
use rss::Channel;
/// Parse CLI arguments and return (feed_url, output_dir)
fn parse_args() -> (String, String) {
let mut args: Vec<String> = env::args().collect();
if args.len() < 2 {
eprintln!("Usage: {} <RSS_FEED_URL> [OUTPUT_DIR]", args[0]);
std::process::exit(1);
}
let feed_url = args.remove(1);
let output_dir = if args.len() > 1 { args.remove(1) } else { String::from(".") };
(feed_url, output_dir)
}
/// Fetch RSS feed content from a URL
fn fetch_feed(url: &str) -> Result<String, reqwest::Error> {
reqwest::blocking::get(url)?.text()
}
/// Parse RSS XML into a Channel
fn parse_feed(xml: &str) -> Result<Channel, rss::Error> {
Channel::read_from(xml.as_bytes())
}
// Extract the audio URLs from the given channel
fn get_audio_urls(channel: &Channel) -> Vec<&str> {
let mut audio_urls = Vec::new();
for item in channel.items() {
if let Some(enclosure) = item.enclosure() {
audio_urls.push(enclosure.url())
}
}
audio_urls
}
fn main() {
let (feed_url, output_dir) = parse_args();
println!("Feed RSS feed from: {}", feed_url);
let xml = fetch_feed(&feed_url).expect("Error fetching feed");
let channel = parse_feed(&xml).expect("Error parsing feed");
for url in get_audio_urls(&channel) {
println!("Audio URL: {}", url)
}
println!("Output directory: {}", output_dir);
}
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