Files
notedeck/crates/notedeck_clndash/src/channels.rs
William Casarin 35e9354217 clndash: reorganize
Signed-off-by: William Casarin <jb55@jb55.com>
2025-08-11 10:36:44 -07:00

125 lines
3.9 KiB
Rust

use crate::event::LoadingState;
use crate::ui;
use egui::Color32;
use serde::{Deserialize, Serialize};
#[derive(Deserialize, Serialize)]
pub struct ListPeerChannel {
pub short_channel_id: String,
pub our_reserve_msat: i64,
pub to_us_msat: i64,
pub total_msat: i64,
pub their_reserve_msat: i64,
}
pub struct Channel {
pub to_us: i64,
pub to_them: i64,
pub original: ListPeerChannel,
}
pub struct Channels {
pub max_total_msat: i64,
pub avail_in: i64,
pub avail_out: i64,
pub channels: Vec<Channel>,
}
pub fn channels_ui(ui: &mut egui::Ui, channels: &LoadingState<Channels, lnsocket::Error>) {
match channels {
LoadingState::Loaded(channels) => {
if channels.channels.is_empty() {
ui.label("no channels yet...");
return;
}
for channel in &channels.channels {
channel_ui(ui, channel, channels.max_total_msat);
}
ui.label(format!(
"available out {}",
ui::human_sat(channels.avail_out)
));
ui.label(format!("available in {}", ui::human_sat(channels.avail_in)));
}
LoadingState::Failed(err) => {
ui.label(format!("error fetching channels: {err}"));
}
LoadingState::Loading => {
ui.label("fetching channels...");
}
}
}
pub fn channel_ui(ui: &mut egui::Ui, c: &Channel, max_total_msat: i64) {
// ---------- numbers ----------
let short_channel_id = &c.original.short_channel_id;
let cap_ratio = (c.original.total_msat as f32 / max_total_msat.max(1) as f32).clamp(0.0, 1.0);
// Feel free to switch to log scaling if you have whales:
//let cap_ratio = ((c.original.total_msat as f32 + 1.0).log10() / (max_total_msat as f32 + 1.0).log10()).clamp(0.0, 1.0);
// ---------- colors & style ----------
let out_color = Color32::from_rgb(84, 69, 201); // blue
let in_color = Color32::from_rgb(158, 56, 180); // purple
// Thickness scales with capacity, but keeps a nice minimum
let thickness = 10.0 + cap_ratio * 22.0; // 10 → 32 px
let row_h = thickness + 14.0;
// ---------- layout ----------
let (rect, response) = ui.allocate_exact_size(
egui::vec2(ui.available_width(), row_h),
egui::Sense::hover(),
);
let painter = ui.painter_at(rect);
let bar_rect = egui::Rect::from_min_max(
egui::pos2(rect.left(), rect.center().y - thickness * 0.5),
egui::pos2(rect.right(), rect.center().y + thickness * 0.5),
);
let corner_radius = (thickness * 0.5) as u8;
let out_radius = egui::CornerRadius {
ne: 0,
nw: corner_radius,
sw: corner_radius,
se: 0,
};
let in_radius = egui::CornerRadius {
ne: corner_radius,
nw: 0,
sw: 0,
se: corner_radius,
};
/*
painter.rect_filled(bar_rect, rounding, track_color);
painter.rect_stroke(bar_rect, rounding, track_stroke, egui::StrokeKind::Middle);
*/
// Split widths
let usable = (c.to_us + c.to_them).max(1) as f32;
let out_w = (bar_rect.width() * (c.to_us as f32 / usable)).round();
let split_x = bar_rect.left() + out_w;
// Outbound fill (left)
let out_rect = egui::Rect::from_min_max(bar_rect.min, egui::pos2(split_x, bar_rect.max.y));
if out_rect.width() > 0.5 {
painter.rect_filled(out_rect, out_radius, out_color);
}
// Inbound fill (right)
let in_rect = egui::Rect::from_min_max(egui::pos2(split_x, bar_rect.min.y), bar_rect.max);
if in_rect.width() > 0.5 {
painter.rect_filled(in_rect, in_radius, in_color);
}
// Tooltip
response.on_hover_text_at_pointer(format!(
"Channel ID {short_channel_id}\nOutbound (ours): {} sats\nInbound (theirs): {} sats\nCapacity: {} sats",
ui::human_sat(c.to_us),
ui::human_sat(c.to_them),
ui::human_sat(c.original.total_msat),
));
}