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use ::std::collections::HashMap;
use ::tui::backend::Backend;
use ::tui::Terminal;
use crate::display::UIState;
use crate::network::{Connection, Utilization};
use crate::display::components::{Table, Layout, TotalBandwidth};
use ::std::net::Ipv4Addr;
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 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_ips = Table::create_remote_ips_table(&state, &ip_to_host);
let total_bandwidth = TotalBandwidth { state: &state };
let layout = Layout {
header: total_bandwidth,
children: vec![connections, processes, remote_ips],
};
layout.render(&mut frame, size);
})
.unwrap();
}
pub fn update_state(
&mut self,
connections_to_procs: HashMap<Connection, 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) {
// TODO: destroy?
self.terminal.clear().unwrap();
self.terminal.show_cursor().unwrap();
}
}
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