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pub use crate::miner::Connection;
use async_std::sync::{Arc, RwLock};
use log::info;
use metrics::gauge;
use std::collections::HashMap;
use std::net::SocketAddr;
use stratum_types::Result;

#[derive(Default)]
pub struct MinerList {
    pub miners: RwLock<HashMap<SocketAddr, Arc<Connection>>>,
}

impl MinerList {
    pub fn new() -> Self {
        MinerList {
            miners: RwLock::new(HashMap::new()),
        }
    }

    pub async fn add_miner(&self, addr: SocketAddr, miner: Arc<Connection>) -> Result<()> {
        self.miners.write().await.insert(addr, miner);
        // gauge!(
        //     "stratum.num_connections",
        //     self.miners.read().await.len() as f64
        // );
        Ok(())
    }

    pub async fn remove_miner(&self, addr: SocketAddr) -> Result<()> {
        self.miners.write().await.remove(&addr);
        // gauge!(
        //     "stratum.num_connections",
        //     self.miners.read().await.len() as f64
        // );
        Ok(())
    }

    // pub async fn broadcast_new_job(&self) -> Result<()> {
    //     let miners = self.miners.read().await;

    //     info!("Broadcasting new work to miners.");

    //     let mut results = Vec::new();

    //     for miner in miners.values() {
    //         info!("Sending new work to miner: {}", miner.id);
    //         results.push(miner.send_work());
    //     }

    //     futures::future::join_all(results).await;
    //     info!("All work send to miners");

    //     Ok(())
    // }

    pub async fn get_all_miners(&self) -> Vec<Arc<Connection>> {
        self.miners
            .read()
            .await
            .values()
            .map(|x| x.clone())
            .collect()
    }
}