mod errors;
mod feed;
mod fetch;
mod history;
pub mod prelude;
mod subscriptions;

use prelude::*;

pub fn run(subscriptions: &str, history: &str, site: &str) -> Result<()> {
    for channel_name in subscriptions::lines_from(subscriptions)? {
        let channel_name = channel_name?;
        println!("Channel: {}", channel_name);
        let feed_url = feed::get_feed_url(site, &channel_name)?;
        for entry in feed::get_feed(feed_url)?.entries() {
            if let Some(link) = entry.links().get(0).cloned() {
                if !history::is_already_downloaded(&link, history)? {
                    println!("Downloading {}: {}", &channel_name, entry.title().as_str());
                    fetch::download_audio(&link)?;
                    history::mark_as_downloaded(&link, history)?;
                }
            }
        }
    }
    Ok(())
}