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use net_sdk::deck::{
DaemonHealthSnapshot, DaemonLifecycleSnapshot, MaintenanceStateSnapshot, MeshOsSnapshot,
PeerHealthSnapshot, PeerSnapshot,
};
use ratatui::{
layout::{Alignment, Constraint, Direction, Layout, Rect},
text::{Line, Span},
widgets::Paragraph,
Frame,
};
use crate::{app::App, theme};
pub fn render(frame: &mut Frame<'_>, area: Rect, app: &App) {
// Right column carries codename + version + help. The
// codename ("ATOMIC PLAYBOYS" today, ~25 cols including
// the label) pushes the budget past the prior 28-col
// reservation; 44 fits the row without squeezing the
// left chips at 80-col widths.
let cols = Layout::default()
.direction(Direction::Horizontal)
.constraints([Constraint::Min(0), Constraint::Length(44)])
.split(area);
let uptime = app.started.elapsed().as_secs();
let mode_text = if cfg!(feature = "demo") {
"LIVE +demo"
} else {
"LIVE"
};
// Pass the synthesized local PeerSnapshot so peer_summary
// reads its actual `health` field instead of hardcoding
// "local is Healthy". The synth stamps Healthy today, but
// a future contract change that lets the local node self-
// report Degraded / Unreachable propagates here without
// silently disagreeing with NODES / NET.MAP.
let local_peer = app.local_peer_snapshot();
let peers = peer_summary(&app.snapshot, &local_peer);
let daemons = daemon_summary(&app.snapshot);
// Substrate's `recently_emitted` is a ring of the last N
// reconcile-emitted actions (capped by
// `action_queue_capacity`); the executor doesn't signal
// completion, so this is NOT a live "in flight" count.
// Label the chip honestly so operators read it as "recent
// reconcile work," not "currently pending tasks."
let recent = app.snapshot.recently_emitted.len();
let (maint_style, maint_text) = local_maint_summary(&app.snapshot);
// Single-character separator (` · `) compresses spacing vs
// the prior triple-space gutters so the whole row fits at
// 100 cols even with the cluster chip + version on the
// right. Each chip stays self-describing via its label.
let sep = || Span::styled(" · ", theme::chrome());
let mut left = vec![
Span::styled("● ", theme::green()),
Span::styled(mode_text, theme::green_hi()),
sep(),
];
// Remote bookmarks get their cluster name in the header so
// an operator pivoting between clusters always sees which
// one they're on; the default `"local"` is implicit and
// gets omitted to keep the chrome quiet.
if app.active_cluster != "local" {
left.push(Span::styled(app.active_cluster.clone(), theme::amber()));
left.push(sep());
}
// peers: 17p 14H/2D/0U
left.push(Span::styled(format!("{}p ", peers.total), theme::text()));
left.push(Span::styled(format!("{}H", peers.healthy), theme::green()));
left.push(Span::styled("/", theme::chrome()));
left.push(Span::styled(format!("{}D", peers.degraded), theme::amber()));
left.push(Span::styled("/", theme::chrome()));
left.push(Span::styled(
format!("{}U", peers.unreachable),
theme::red(),
));
left.push(sep());
// daemons: 11d 11R/0B/0X
left.push(Span::styled(format!("{}d ", daemons.total), theme::text()));
left.push(Span::styled(
format!("{}R", daemons.running),
theme::green(),
));
left.push(Span::styled("/", theme::chrome()));
left.push(Span::styled(
format!("{}B", daemons.backing_off),
theme::amber(),
));
left.push(Span::styled("/", theme::chrome()));
left.push(Span::styled(
format!("{}X", daemons.crash_looping),
theme::red(),
));
left.push(sep());
// recently emitted: 0 recent — kept dim regardless of
// count. The substrate's `recently_emitted` ring is a
// diagnostic counter (last N emitted; executor doesn't
// signal completion back), not a live-pressure signal
// worth amber-pulsing in the operator's peripheral view.
left.push(Span::styled(format!("{recent} recent"), theme::dim()));
left.push(sep());
// local maintenance state
left.push(Span::styled(maint_text, maint_style));
left.push(sep());
left.push(Span::styled(format!("{uptime}s"), theme::dim()));
// Version comes from Cargo at compile time and is always
// accurate. Codename is the substrate's release milestone
// (v0.17 → "Atomic Playboys"); kept inline rather than
// env-injected because the deck ships from the same
// workspace and tracks the same release cadence.
let version = concat!("v", env!("CARGO_PKG_VERSION"));
let codename = "RADAR LOVE";
let right = Line::from(vec![
Span::styled("CODENAME: ", theme::chrome()),
Span::styled(codename, theme::text()),
Span::styled(" ", theme::chrome()),
Span::styled(format!("{version} "), theme::chrome()),
Span::styled("?", theme::green_hi()),
Span::styled(" help", theme::dim()),
]);
frame.render_widget(Paragraph::new(Line::from(left)), cols[0]);
frame.render_widget(Paragraph::new(right).alignment(Alignment::Right), cols[1]);
}
struct PeerSummary {
total: usize,
healthy: usize,
degraded: usize,
unreachable: usize,
}
fn peer_summary(snap: &MeshOsSnapshot, local: &PeerSnapshot) -> PeerSummary {
// Local node counts too: NODES + NET.MAP render it
// alongside remote peers, so the status-bar chip needs
// to match (17 peers + self = 18). The local PeerSnapshot
// is synthesized by the App (the substrate fold doesn't
// insert self into `snap.peers`), and its `health` field
// is what NODES + NET.MAP read — so this summary stays in
// lockstep with them.
let mut healthy = 0;
let mut degraded = 0;
let mut unreachable = 0;
// Pre-pass: classify the local peer.
match local.health {
Some(PeerHealthSnapshot::Healthy) => healthy += 1,
Some(PeerHealthSnapshot::Degraded) => degraded += 1,
Some(PeerHealthSnapshot::Unreachable) => unreachable += 1,
_ => {}
}
for p in snap.peers.values() {
match p.health {
Some(PeerHealthSnapshot::Healthy) => healthy += 1,
Some(PeerHealthSnapshot::Degraded) => degraded += 1,
Some(PeerHealthSnapshot::Unreachable) => unreachable += 1,
_ => {}
}
}
PeerSummary {
total: snap.peers.len() + 1,
healthy,
degraded,
unreachable,
}
}
struct DaemonSummary {
total: usize,
running: usize,
backing_off: usize,
crash_looping: usize,
}
fn daemon_summary(snap: &MeshOsSnapshot) -> DaemonSummary {
use net_sdk::deck::RestartStateSnapshot;
let mut running = 0;
let mut backing_off = 0;
let mut crash_looping = 0;
for d in snap.daemons.values() {
// Restart-state buckets dominate so crash-loop /
// backoff aren't double-counted as "running" even
// when the lifecycle still reads Running.
match d.restart_state {
RestartStateSnapshot::CrashLooping { .. } => crash_looping += 1,
RestartStateSnapshot::BackingOff { .. } => backing_off += 1,
_ => {
let healthy = matches!(d.health, Some(DaemonHealthSnapshot::Healthy));
let alive = matches!(d.lifecycle, DaemonLifecycleSnapshot::Running);
if healthy && alive {
running += 1;
}
}
}
}
DaemonSummary {
total: snap.daemons.len(),
running,
backing_off,
crash_looping,
}
}
fn local_maint_summary(snap: &MeshOsSnapshot) -> (ratatui::style::Style, &'static str) {
// `MaintenanceStateSnapshot` is `#[non_exhaustive]` so a
// wildcard is unavoidable — but every *shipped* variant
// must have an explicit arm above. A future variant
// surfacing here as the `unknown-maint` fallback is the
// signal to extend the match; the explicit fallback label
// beats the prior `"?"` for operator legibility and trips
// a debug-build assertion so CI catches the gap.
match snap.local_maintenance {
MaintenanceStateSnapshot::Active => (theme::green(), "active"),
MaintenanceStateSnapshot::EnteringMaintenance { .. } => (theme::cyan(), "draining"),
MaintenanceStateSnapshot::Maintenance { .. } => (theme::cyan(), "maint"),
MaintenanceStateSnapshot::ExitingMaintenance { .. } => (theme::cyan(), "exiting"),
MaintenanceStateSnapshot::DrainFailed { .. } => (theme::red(), "DRAIN-FAILED"),
MaintenanceStateSnapshot::Recovery { .. } => (theme::cyan(), "recovery"),
ref other => {
debug_assert!(
false,
"local_maint_summary: unrecognised MaintenanceStateSnapshot variant {other:?} — add an explicit arm",
);
(theme::amber(), "unknown-maint")
}
}
}