1 files changed, 41 insertions, 5 deletions
diff --git a/src/main.rs b/src/main.rs
index b8204dd..c2a7dff 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,15 +1,51 @@
 use std::env;
+use rss::Channel;
 
-fn main() {
-    let args: Vec<String> = env::args().collect();
+/// 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[1];
-    let output_dir = if args.len() > 2 { &args[2] } else { "." };
+    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!("Feed URL: {}", feed_url);
     println!("Output directory: {}", output_dir);
 }