anydoor 0.0.1

A tool for forwarding traffic to a remote server
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use serde::Serialize;
use std::time::Duration;
use systemstat::{Platform, System};
use tokio::time;

#[derive(Serialize)]
pub struct SystemStats {
    cpu_load: f32,
    memory_used: u64,
    memory_total: u64,
    network_rx: u64,
    network_tx: u64,
}

pub struct Monitor {
    sys: System,
}

impl Monitor {
    pub fn new() -> Self {
        Self { sys: System::new() }
    }

    pub async fn collect_stats(&self) -> Result<SystemStats, Box<dyn std::error::Error>> {
        let cpu = self.sys.cpu_load_aggregate()?;
        time::sleep(Duration::from_secs(1)).await;
        let cpu = cpu.done()?;

        let memory = self.sys.memory()?;
        let networks = self.sys.networks()?;

        let mut network_rx = 0;
        let mut network_tx = 0;

        for (interface_name, _) in networks.iter() {
            if let Ok(stats) = self.sys.network_stats(interface_name) {
                network_rx += stats.rx_bytes.as_u64();
                network_tx += stats.tx_bytes.as_u64();
            }
        }

        Ok(SystemStats {
            cpu_load: cpu.user * 100.0,
            memory_used: memory.total.as_u64() - memory.free.as_u64(),
            memory_total: memory.total.as_u64(),
            network_rx,
            network_tx,
        })
    }
}