108 lines
3.4 KiB
TypeScript
108 lines
3.4 KiB
TypeScript
"use client";
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import { memo } from "react";
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import { Tooltip, TooltipContent, TooltipTrigger } from "@kandev/ui/tooltip";
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import { cn } from "@/lib/utils";
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import { useSessionContextWindow } from "@/hooks/domains/session/use-session-context-window";
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type TokenUsageDisplayProps = {
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sessionId: string | null;
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className?: string;
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};
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/**
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* A context-window report is only trustworthy when we have a positive window
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* size and usage that does not exceed it. `used > size` is impossible for a
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* real window, so it means the agent (via the ACP bridge) reported a stale or
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* wrong `size` (e.g. 200K for a model actually running on the 1M beta window).
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* In that case we hide the indicator instead of showing a confusing >100%.
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* `used === size` (exactly full) is valid and still renders.
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*/
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export function isContextWindowReliable(size: number, used: number): boolean {
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return size > 0 && used <= size;
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}
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function formatNumber(num: number): string {
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if (num >= 1_000_000) {
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return `${(num / 1_000_000).toFixed(1)}M`;
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}
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if (num >= 1_000) {
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return `${(num / 1_000).toFixed(1)}K`;
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}
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return num.toLocaleString();
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}
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function getCircleColor(efficiency: number): string {
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if (efficiency >= 90) return "text-yellow-500";
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if (efficiency >= 75) return "text-yellow-300";
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if (efficiency >= 50) return "text-blue-500";
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return "text-blue-300";
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}
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export const TokenUsageDisplay = memo(function TokenUsageDisplay({
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sessionId,
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className,
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}: TokenUsageDisplayProps) {
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const contextWindow = useSessionContextWindow(sessionId);
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if (!contextWindow) return null;
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const { size, used } = contextWindow;
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// Hide when there's no data yet (size 0) or the report is impossible
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// (used > size) — see isContextWindowReliable.
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if (!isContextWindowReliable(size, used)) return null;
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const usagePercent = (used / size) * 100;
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const progress = usagePercent / 100;
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// SVG circle parameters
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const radius = 10;
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const strokeWidth = 2.5;
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const circumference = 2 * Math.PI * radius;
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const strokeDashoffset = circumference * (1 - progress);
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return (
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<Tooltip>
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<TooltipTrigger asChild>
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<div className={cn("flex items-center gap-2 cursor-help", className)}>
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<div className="relative flex items-center justify-center">
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<svg viewBox="0 0 24 24" className="w-5 h-5 -rotate-90" aria-hidden="true">
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{/* Background circle */}
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<circle
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cx="12"
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cy="12"
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r={radius}
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fill="none"
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stroke="currentColor"
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strokeWidth={strokeWidth}
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className="text-muted"
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/>
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{/* Progress circle */}
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<circle
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cx="12"
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cy="12"
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r={radius}
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fill="none"
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stroke="currentColor"
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strokeWidth={strokeWidth}
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strokeLinecap="round"
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strokeDasharray={circumference}
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strokeDashoffset={strokeDashoffset}
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className={cn(getCircleColor(usagePercent), "transition-all duration-300 ease-out")}
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/>
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</svg>
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</div>
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</div>
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</TooltipTrigger>
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<TooltipContent side="top">
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<div className="text-xs space-y-1">
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<div className="font-medium">
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{usagePercent.toFixed(0)}% ({formatNumber(used)} / {formatNumber(size)})
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</div>
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</div>
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</TooltipContent>
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</Tooltip>
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);
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});
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