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use crate::connect_to_coordinator;
use communication_layer_request_reply::TcpRequestReplyConnection;
use dora_core::topics::{ControlRequest, ControlRequestReply};
use eyre::{bail, Context};
use std::{
io::{IsTerminal, Write},
net::SocketAddr,
};
use termcolor::{Color, ColorChoice, ColorSpec, WriteColor};
pub fn check_environment(coordinator_addr: SocketAddr) -> eyre::Result<()> {
let mut error_occurred = false;
let color_choice = if std::io::stdout().is_terminal() {
ColorChoice::Auto
} else {
ColorChoice::Never
};
let mut stdout = termcolor::StandardStream::stdout(color_choice);
// check whether coordinator is running
write!(stdout, "Dora Coordinator: ")?;
let mut session = match connect_to_coordinator(coordinator_addr) {
Ok(session) => {
let _ = stdout.set_color(ColorSpec::new().set_fg(Some(Color::Green)));
writeln!(stdout, "ok")?;
Some(session)
}
Err(_) => {
let _ = stdout.set_color(ColorSpec::new().set_fg(Some(Color::Red)));
writeln!(stdout, "not running")?;
error_occurred = true;
None
}
};
let _ = stdout.reset();
// check whether daemon is running
write!(stdout, "Dora Daemon: ")?;
if session
.as_deref_mut()
.map(daemon_running)
.transpose()?
.unwrap_or(false)
{
let _ = stdout.set_color(ColorSpec::new().set_fg(Some(Color::Green)));
writeln!(stdout, "ok")?;
} else {
let _ = stdout.set_color(ColorSpec::new().set_fg(Some(Color::Red)));
writeln!(stdout, "not running")?;
error_occurred = true;
}
let _ = stdout.reset();
writeln!(stdout)?;
if error_occurred {
bail!("Environment check failed.");
}
Ok(())
}
pub fn daemon_running(session: &mut TcpRequestReplyConnection) -> Result<bool, eyre::ErrReport> {
let reply_raw = session
.request(&serde_json::to_vec(&ControlRequest::DaemonConnected).unwrap())
.wrap_err("failed to send DaemonConnected message")?;
let reply = serde_json::from_slice(&reply_raw).wrap_err("failed to parse reply")?;
let running = match reply {
ControlRequestReply::DaemonConnected(running) => running,
other => bail!("unexpected reply to daemon connection check: {other:?}"),
};
Ok(running)
}
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