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use ::std::collections::HashMap;
use ::tui::backend::Backend;
use ::tui::Terminal;
use crate::display::components::{Layout, Table, TotalBandwidth};
use crate::display::UIState;
use crate::network::{display_connection_string, display_ip_or_host, LocalSocket, Utilization};
use ::std::net::Ipv4Addr;
use chrono::prelude::*;
pub struct Ui<B>
where
B: Backend,
{
terminal: Terminal<B>,
state: UIState,
ip_to_host: HashMap<Ipv4Addr, String>,
}
impl<B> Ui<B>
where
B: Backend,
{
pub fn new(terminal_backend: B) -> Self {
let mut terminal = Terminal::new(terminal_backend).unwrap();
terminal.clear().unwrap();
terminal.hide_cursor().unwrap();
Ui {
terminal,
state: Default::default(),
ip_to_host: Default::default(),
}
}
pub fn output_text(&mut self, write_to_stdout: &mut (dyn FnMut(String) + Send)) {
let state = &self.state;
let ip_to_host = &self.ip_to_host;
let local_time: DateTime<Local> = Local::now();
let timestamp = local_time.timestamp();
for (process, process_network_data) in &state.processes {
write_to_stdout(format!(
"process: <{}> \"{}\" up/down Bps: {}/{} connections: {}",
timestamp,
process,
process_network_data.total_bytes_uploaded,
process_network_data.total_bytes_downloaded,
process_network_data.connection_count
));
}
for (connection, connection_network_data) in &state.connections {
write_to_stdout(format!(
"connection: <{}> {} up/down Bps: {}/{} process: \"{}\"",
timestamp,
display_connection_string(
connection,
ip_to_host,
&connection_network_data.interface_name
),
connection_network_data.total_bytes_uploaded,
connection_network_data.total_bytes_downloaded,
connection_network_data.process_name
));
}
for (remote_address, remote_address_network_data) in &state.remote_addresses {
write_to_stdout(format!(
"remote_address: <{}> {} up/down Bps: {}/{} connections: {}",
timestamp,
display_ip_or_host(*remote_address, ip_to_host),
remote_address_network_data.total_bytes_uploaded,
remote_address_network_data.total_bytes_downloaded,
remote_address_network_data.connection_count
));
}
}
pub fn draw(&mut self) {
let state = &self.state;
let ip_to_host = &self.ip_to_host;
self.terminal
.draw(|mut frame| {
let size = frame.size();
let connections = Table::create_connections_table(&state, &ip_to_host);
let processes = Table::create_processes_table(&state);
let remote_addresses = Table::create_remote_addresses_table(&state, &ip_to_host);
let total_bandwidth = TotalBandwidth { state: &state };
let layout = Layout {
header: total_bandwidth,
children: vec![processes, connections, remote_addresses],
};
layout.render(&mut frame, size);
})
.unwrap();
}
pub fn update_state(
&mut self,
connections_to_procs: HashMap<LocalSocket, String>,
utilization: Utilization,
ip_to_host: HashMap<Ipv4Addr, String>,
) {
self.state = UIState::new(connections_to_procs, utilization);
self.ip_to_host = ip_to_host;
}
pub fn end(&mut self) {
self.terminal.clear().unwrap();
self.terminal.show_cursor().unwrap();
}
}
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