use clap::{Arg, Error, ErrorKind};
use clap_nested::{Command};

use crate::lib::m3u::{Playlist};

pub fn get_command<'a>() -> Command<'a, str>{
    Command::new("dedupe")
        .description("dedupe a m3u playlist")
        .options(|app| {
            app.arg(Arg::with_name("playlist")
                .help("Path of the playlist(s) to de-duplicate")
                .index(1)
                .multiple(true)
                .required(true)
            )
        })
        .runner(| _args, matches| {
            // println!("Running dedupe, logging = {}", args);
            match matches.values_of("playlist") {
                Some(playlists) => {
                    for path in playlists {
                        let playlist = Playlist::read(path)?;
                        println!("{:?}", playlist);
                    }
                    Ok(())
                },
                None => Err(
                    Error::with_description("playlist must be provided", ErrorKind::EmptyValue))
            }
        })
}