use std::collections::HashMap;
use std::sync::atomic::{AtomicUsize, Ordering};
use url::Url;

pub struct TrackerManager {
    counter: AtomicUsize,
    trackers: HashMap<usize, Tracker>,
    url_index: HashMap<String, usize>,
}

pub struct Tracker {
    url: Url,
}

pub type TrackerId = usize;

impl TrackerManager {
    pub fn get_tracker_id(&mut self, url: &Url) -> Option<TrackerId> {
        // dht is not a tracker bye
        if url.scheme() == "dht" {
            return None;
        }

        let url_str = url.as_str();
        if let Some(id) = self.url_index.get(url_str) {
            return Some(*id);
        }

        let new_id = self.counter.fetch_add(1, Ordering::AcqRel);
        self.url_index.insert(url_str.to_string(), new_id);

        Some(new_id)
    }
}