minotari_node 5.4.0-pre.2

//  Copyright 2022, The Tari Project
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use anyhow::Error;
use async_trait::async_trait;
use clap::Parser;
use tari_comms::PeerConnection;
use tari_core::base_node::state_machine_service::states::PeerMetadata;

use super::{CommandContext, HandleCommand};
use crate::{table::Table, utils::format_duration_basic};

/// Lists the peer connections currently held by this node
#[derive(Debug, Parser)]
pub struct Args {}

#[async_trait]
impl HandleCommand<Args> for CommandContext {
    async fn handle_command(&mut self, _: Args) -> Result<(), Error> {
        self.list_connections().await
    }
}

impl CommandContext {
    async fn list_connections_print_table(&mut self, conns: &[PeerConnection]) {
        let num_connections = conns.len();
        let mut table = Table::new();
        table.set_titles(vec![
            "NodeId",
            "Public Key",
            "Address",
            "Direction",
            "Age",
            "User Agent",
            "Seed",
            "Info",
        ]);
        let peer_manager = self.comms.peer_manager();
        let node_ids = conns
            .iter()
            .map(|conn| conn.peer_node_id())
            .cloned()
            .collect::<Vec<_>>();
        let peers = match peer_manager.get_peers_by_node_ids(&node_ids).await {
            Ok(val) => val,
            Err(e) => {
                println!("Error: Unexpected peer database error: {e}");
                return;
            },
        };
        if peers.len() != node_ids.len() {
            println!("\nError: Peer manager returned fewer peers than requested\n");
        }
        for peer in peers {
            let conn = match conns.iter().find(|conn| conn.peer_node_id() == &peer.node_id) {
                None => continue,
                Some(val) => val,
            };

            let chain_height = peer
                .get_metadata(1)
                .and_then(|v| bincode::deserialize::<PeerMetadata>(v).ok())
                .map(|metadata| format!("height: {}", metadata.metadata.best_block_height()));

            let is_seed = peer.is_seed();
            let ua = peer.user_agent;
            let rpc_sessions = self
                .rpc_server
                .get_num_active_sessions_for(peer.node_id.clone())
                .await
                .unwrap_or(0);
            table.add_row(row![
                peer.node_id,
                peer.public_key,
                conn.address(),
                conn.direction(),
                format_duration_basic(conn.age()),
                { if ua.is_empty() { "<unknown>" } else { ua.as_ref() } },
                if is_seed { "SEED" } else { "    " },
                format!(
                    "{}hnd: {}, ss: {}, rpc: {}",
                    chain_height.map(|s| format!("{s}, ")).unwrap_or_default(),
                    // Exclude the handle held by list-connections
                    conn.handle_count().saturating_sub(1),
                    conn.substream_count(),
                    rpc_sessions
                ),
            ]);
        }

        table.print_stdout();

        println!("{num_connections} active connection(s)");
    }
}

impl CommandContext {
    /// Function to process the list-connections command
    pub async fn list_connections(&mut self) -> Result<(), Error> {
        let conns = self.comms.connectivity().get_active_connections().await?;
        let (mut nodes, mut clients) = conns
            .into_iter()
            .partition::<Vec<_>, _>(|a| a.peer_features().is_node());
        nodes.sort_by(|a, b| a.peer_node_id().cmp(b.peer_node_id()));
        clients.sort_by(|a, b| a.peer_node_id().cmp(b.peer_node_id()));

        println!();
        println!("Base Nodes");
        println!("----------");
        if nodes.is_empty() {
            println!("No active node connections.");
        } else {
            println!();
            self.list_connections_print_table(&nodes).await;
        }
        println!();
        println!("Wallets");
        println!("-------");
        if clients.is_empty() {
            println!("No active wallet connections.");
        } else {
            println!();
            self.list_connections_print_table(&clients).await;
        }
        Ok(())
    }
}