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fix(coding-agent): polish border status editor example

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closes #3674
This commit is contained in:
Mario Zechner
2026-04-24 23:24:38 +02:00
parent 6580dae400
commit 0b271a2c4f
1 changed files with 31 additions and 29 deletions
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60
packages/coding-agent/examples/extensions/border-status-editor.ts
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@@ -7,30 +7,36 @@ import {
import type { Component, EditorTheme, TUI } from "@mariozechner/pi-tui";
import { truncateToWidth, visibleWidth } from "@mariozechner/pi-tui";
function fitBorder(left: string, right: string, width: number, fill: (text: string) => string): string {
function fitBorder(
left: string,
right: string,
width: number,
border: (text: string) => string,
fill: (text: string) => string = border,
): string {
if (width <= 0) return "";
if (width === 1) return fill("─");
if (width === 1) return border("─");
let leftText = left;
let rightText = right;
const edgeWidth = 1;
const minimumGap = 1;
const fixedWidth = 2;
const minimumGap = 3;
while (
edgeWidth * 2 + visibleWidth(leftText) + visibleWidth(rightText) + minimumGap > width &&
fixedWidth + visibleWidth(leftText) + visibleWidth(rightText) + minimumGap > width &&
visibleWidth(rightText) > 0
) {
rightText = truncateToWidth(rightText, Math.max(0, visibleWidth(rightText) - 1), "");
}
while (
edgeWidth * 2 + visibleWidth(leftText) + visibleWidth(rightText) + minimumGap > width &&
fixedWidth + visibleWidth(leftText) + visibleWidth(rightText) + minimumGap > width &&
visibleWidth(leftText) > 0
) {
leftText = truncateToWidth(leftText, Math.max(0, visibleWidth(leftText) - 1), "");
}
const gapWidth = Math.max(0, width - edgeWidth * 2 - visibleWidth(leftText) - visibleWidth(rightText));
return `${fill("─")}${leftText}${fill("─".repeat(gapWidth))}${rightText}${fill("─")}`;
const gapWidth = Math.max(0, width - fixedWidth - visibleWidth(leftText) - visibleWidth(rightText));
return `${border("─")}${leftText}${fill("─".repeat(gapWidth))}${rightText}${border("─")}`;
}
function formatCwd(cwd: string): string {
@@ -43,20 +49,15 @@ function formatCwd(cwd: string): string {
function formatContext(ctx: ExtensionContext): string {
const usage = ctx.getContextUsage();
if (!usage || usage.tokens === null || usage.percent === null) {
return "context unknown";
const contextWindow = usage?.contextWindow ?? ctx.model?.contextWindow;
if (!contextWindow || !usage || usage.percent === null) {
return "ctx ?";
}
return `${Math.round(usage.percent)}% of ${(usage.contextWindow / 1000).toFixed(1)}k`;
return `ctx ${Math.round(usage.percent)}%/${(contextWindow / 1000).toFixed(0)}k`;
}
function formatSessionCost(ctx: ExtensionContext): string {
let totalCost = 0;
for (const entry of ctx.sessionManager.getEntries()) {
if (entry.type === "message" && entry.message.role === "assistant") {
totalCost += entry.message.usage.cost.total;
}
}
return `$${totalCost.toFixed(3)}`;
function formatThinking(level: string): string {
return level === "off" ? "off" : level;
}
class EmptyFooter implements Component {
@@ -127,18 +128,19 @@ export default function (pi: ExtensionAPI) {
if (lines.length < 2) return lines;
const thm = ctx.ui.theme;
const model = ctx.model ? `(${ctx.model.provider}) ${ctx.model.id}` : "no model";
const model = ctx.model ? `${ctx.model.provider}/${ctx.model.id}` : "no model";
const thinking = pi.getThinkingLevel();
const workingText = isWorking ? `${spinnerFrames[spinnerIndex]} working` : "idle";
const topLeft = thm.fg("muted", ` ${formatContext(ctx)} · ${formatSessionCost(ctx)} `);
const topRight = thm.fg("muted", ` ${model} · ${thinking} `);
const bottomLeft = isWorking ? thm.fg("accent", ` ${workingText} `) : thm.fg("muted", ` ${workingText} `);
const bottomRight = thm.fg("muted", ` ${formatCwd(ctx.cwd)}${branch ? ` (${branch})` : ""} `);
lines[0] = fitBorder(topLeft, topRight, width, (text) => this.borderColor(text.replace(/ /g, "─")));
lines[lines.length - 1] = fitBorder(bottomLeft, bottomRight, width, (text) =>
this.borderColor(text.replace(/ /g, "─")),
const topLeft = isWorking ? thm.fg("accent", ` ${spinnerFrames[spinnerIndex]} `) : "";
const topRight = "";
const bottomLeft = thm.fg("muted", ` ${model} · ${formatThinking(thinking)} `);
const bottomRight = thm.fg(
"muted",
` ${formatContext(ctx)} · ${formatCwd(ctx.cwd)}${branch ? ` (${branch})` : ""} `,
);
const borderColor = (text: string) => this.borderColor(text);
lines[0] = fitBorder(topLeft, topRight, width, borderColor);
lines[lines.length - 1] = fitBorder(bottomLeft, bottomRight, width, borderColor);
return lines;
}
}