use std::str::FromStr;

use anyhow::bail;

use crate::{config::ConfigWrapper, downloader::Downloader, manifest::{song::Song, Manifest}, util::is_supported_host};



pub fn song(cfg: &ConfigWrapper, manifest: &mut Manifest, downloader: &mut Downloader, url: &str, name: &String, playlist: &String) -> anyhow::Result<()> {
    
    let mut playlists = manifest.get_playlists().keys().cloned().collect::<Vec<String>>();

    playlists.sort();

    if !is_supported_host(&url::Url::from_str(url)?) {
        log::error!("Invalid or unsupported host name");
        return Ok(());
    }



    let song = Song::from_url_str(url.to_string())?;
    manifest.add_song(playlist, name.clone(), song.clone());
    manifest.save(None)?;

    let should_download = crate::prompt::yes_no("Download song now?", Some(false));

    if should_download {
        downloader.download_song(cfg, name, &song, playlist, manifest.get_format())?;
        crate::process_manager::wait_for_procs_until(0)?;
    }

    Ok(())
}

pub fn playlist(cfg: &ConfigWrapper, manifest: &mut Manifest, downloader: &mut Downloader, url: &str, name: &String) -> anyhow::Result<()> {
    let songs = downloader.download_playlist_nb(cfg, url, name, manifest.get_format())?;

    if manifest.get_playlist(name).is_some() {
        log::error!("Playlist {name} already exists");
        bail!("")
    }

    manifest.add_playlist(name.clone());

    let playlist = manifest.get_playlist_mut(name).expect("Unreachable");
    
    for (sname, song) in songs {
        playlist.add_song(sname, song);
    }
    manifest.save(None)?;

    while downloader.download_all_nb_poll(cfg)?.is_some() {};
    Ok(())
}