50:I[707087,["/_next/static/immutable/chunks/3arlv5bvukoo2.js","/_next/static/immutable/chunks/39v64hmfyo-sr.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/04j_o97cgxn2x.js","/_next/static/immutable/chunks/3upr08c9vtj8w.js","/_next/static/immutable/chunks/1ww0328si-u8x.js","/_next/static/immutable/chunks/11mfl5ymqld9-.js","/_next/static/immutable/chunks/2xxcqy6ppds3l.js","/_next/static/immutable/chunks/2ntfcxrkfxczh.js","/_next/static/immutable/chunks/31nn7jwsjvqii.js","/_next/static/immutable/chunks/43_s7jweyypoh.js","/_next/static/immutable/chunks/0p6vao205o1jc.js","/_next/static/immutable/chunks/1_kyvgkyokw92.js","/_next/static/immutable/chunks/1lo-zn37dolb5.js","/_next/static/immutable/chunks/1v8k6yxw1rg0u.js"],"RegistryDependencies"] 51:I[314491,["/_next/static/immutable/chunks/3arlv5bvukoo2.js","/_next/static/immutable/chunks/39v64hmfyo-sr.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/04j_o97cgxn2x.js","/_next/static/immutable/chunks/3upr08c9vtj8w.js","/_next/static/immutable/chunks/1ww0328si-u8x.js","/_next/static/immutable/chunks/11mfl5ymqld9-.js","/_next/static/immutable/chunks/2xxcqy6ppds3l.js","/_next/static/immutable/chunks/2ntfcxrkfxczh.js","/_next/static/immutable/chunks/31nn7jwsjvqii.js","/_next/static/immutable/chunks/43_s7jweyypoh.js","/_next/static/immutable/chunks/0p6vao205o1jc.js","/_next/static/immutable/chunks/1_kyvgkyokw92.js","/_next/static/immutable/chunks/1lo-zn37dolb5.js","/_next/static/immutable/chunks/1v8k6yxw1rg0u.js"],"FilesView"] 52:T4408,"use client"; /** * @author: @kokonutui * @description: AI Loading State * @version: 2.0.0 * @date: 2026-10-14 * @license: MIT * @website: https://kokonutui.com * @github: https://github.com/kokonut-labs/kokonutui */ import { ChevronDown } from "lucide-react"; import { AnimatePresence, MotionConfig, motion } from "motion/react"; import { useEffect, useId, useRef, useState } from "react"; import { cn } from "@/lib/utils"; export type AgentStepStatus = "pending" | "running" | "done" | "error"; export interface AgentStep { id: string; label: string; status: AgentStepStatus; /** Log lines for the step. The running step shows the latest ones. */ detail?: string[]; } interface AILoadingStateProps { /** * The agent's steps, in order. Update them as work progresses. When * omitted, a demo run plays on a loop. */ steps?: AgentStep[]; /** Collapse the list once every step is done. Defaults to true. */ collapseWhenDone?: boolean; className?: string; } const EASE_OUT = [0.23, 1, 0.32, 1] as const; const LINE_HEIGHT = 24; const VISIBLE_LINES = 3; const DEMO_STEPS: Omit[] = [ { id: "search", label: "Searching the web", detail: [ "query: loading states in agent UIs", "visiting 5 websites", "reading emilkowal.ski/ui/great-animations", "reading developer.apple.com/design", ], }, { id: "read", label: "Reading 4 sources", detail: [ "extracting key passages", "dropping 1 duplicate source", "ranking by relevance", ], }, { id: "compare", label: "Comparing approaches", detail: [ "spinners vs. step lists", "progress you can verify", "checking motion preferences", ], }, { id: "write", label: "Writing the summary", detail: ["drafting 3 sections"], }, ]; const DEMO_TICK_MS = 750; const DEMO_REST_MS = 3200; interface DemoPosition { step: number; line: number; } const advanceDemo = ({ step, line }: DemoPosition): DemoPosition => { if (step >= DEMO_STEPS.length) { return { step: 0, line: 0 }; } const lineCount = DEMO_STEPS[step].detail?.length ?? 0; return line < lineCount ? { step, line: line + 1 } : { step: step + 1, line: 0 }; }; /** Advances through DEMO_STEPS one log line per tick, pausing offscreen. */ function useDemoRun( enabled: boolean, rootRef: React.RefObject ) { const [position, setPosition] = useState({ step: 0, line: 0, }); const [isVisible, setIsVisible] = useState(true); useEffect(() => { const element = rootRef.current; if (!(enabled && element)) { return; } const observer = new IntersectionObserver(([entry]) => setIsVisible(entry.isIntersecting) ); observer.observe(element); return () => observer.disconnect(); }, [enabled, rootRef]); const positionRef = useRef(position); useEffect(() => { if (!(enabled && isVisible)) { return; } let id: ReturnType; const schedule = () => { const finished = positionRef.current.step >= DEMO_STEPS.length; id = setTimeout( () => { positionRef.current = advanceDemo(positionRef.current); setPosition(positionRef.current); schedule(); }, finished ? DEMO_REST_MS : DEMO_TICK_MS ); }; schedule(); return () => clearTimeout(id); }, [enabled, isVisible]); return DEMO_STEPS.map((step, i): AgentStep => { if (i < position.step) { return { ...step, status: "done" }; } if (i === position.step) { return { ...step, status: "running", detail: step.detail?.slice(0, position.line), }; } return { ...step, status: "pending" }; }); } function StepIcon({ status }: { status: AgentStepStatus }) { return ( {status === "pending" && ( )} {status === "running" && ( )} {status === "done" && ( )} {status === "error" && ( )} ); } /** The running step's latest log lines, scrolling up as new ones arrive. */ function StepLog({ lines }: { lines: string[] }) { const offset = Math.max(0, lines.length - VISIBLE_LINES); return (

VISIBLE_LINES - 1 ? "linear-gradient(to bottom, rgb(0 0 0 / 0.25), black 70%)" : undefined, WebkitMaskImage: lines.length > VISIBLE_LINES - 1 ? "linear-gradient(to bottom, rgb(0 0 0 / 0.25), black 70%)" : undefined, transition: "height 240ms cubic-bezier(0.23, 1, 0.32, 1)", }} >

{lines.map((line, index) => ( {index + 1} {line} ))}

); } const formatDuration = (seconds: number) => seconds < 60 ? `${seconds}s` : `${Math.floor(seconds / 60)}m ${(seconds % 60).toString().padStart(2, "0")}s`; /** * Seconds since the run started. Freezes while nothing runs, and restarts * when a step runs again after the whole list was done. */ function useElapsed(active: boolean, done: boolean) { const [seconds, setSeconds] = useState(0); const startRef = useRef(null); const finishedRef = useRef(false); useEffect(() => { if (done) { finishedRef.current = true; } }, [done]); useEffect(() => { if (!active) { return; } if (finishedRef.current) { finishedRef.current = false; startRef.current = null; } const start = startRef.current ?? Date.now(); startRef.current = start; const tick = () => setSeconds(Math.floor((Date.now() - start) / 1000)); tick(); const id = setInterval(tick, 500); return () => clearInterval(id); }, [active]); return seconds; } // Same stylesheet as AI Text Loading, so the two share one copy on a page. const WAVE_CSS = ` @keyframes kokonut-ai-wave { 50% { opacity: 0.3; } } .kokonut-ai-wave { animation: kokonut-ai-wave 1.6s ease-in-out infinite both; } @media (prefers-reduced-motion: reduce) { .kokonut-ai-wave { animation: none; } } `; /** A soft brightness wave through the running step's letters. */ function WaveText({ text }: { text: string }) { return ( <> {Array.from(text).map((char, i) => ( {char} ))} ); } const formatStepTime = (ms: number) => ms < 10_000 ? `${(ms / 1000).toFixed(1)}s` : `${Math.round(ms / 1000)}s`; /** * Times each step from when it starts running to when it ends, so callers * only pass statuses. A step back to pending clears its time. */ function useStepTimes(steps: AgentStep[]) { const [times, setTimes] = useState>({}); const startsRef = useRef>({}); useEffect(() => { const now = Date.now(); const starts = startsRef.current; const finished: Record = {}; let changed = false; for (const step of steps) { if (step.status === "pending") { delete starts[step.id]; changed ||= step.id in times; continue; } // Running again after it had ended: a new run, so time it afresh. if (step.status === "running" && step.id in times) { starts[step.id] = now; changed = true; } starts[step.id] ??= now; if (step.status === "done" || step.status === "error") { finished[step.id] = times[step.id] ?? now - starts[step.id]; changed ||= !(step.id in times); } } if (changed) { setTimes(finished); } }, [steps, times]); return times; } const LABEL_COLORS: Record = { pending: "text-zinc-400 dark:text-zinc-500", running: "text-zinc-900 dark:text-zinc-100", done: "text-zinc-500 dark:text-zinc-400", error: "text-red-600 dark:text-red-400", }; function StepRow({ step, time, isLast, }: { step: AgentStep; time: number | undefined; isLast: boolean; }) { return (

{/* The rail between icons fills in as each step completes. */} {!isLast && ( )}

{step.status === "running" ? ( <> {step.label} ) : ( step.label )}

{time !== undefined && ( {formatStepTime(time)} )}

{step.status === "running" && step.detail?.length ? (

) : null}

); } export default function AILoadingState({ steps: stepsProp, collapseWhenDone = true, className, }: AILoadingStateProps) { const rootRef = useRef(null); const demoSteps = useDemoRun(stepsProp === undefined, rootRef); const steps = stepsProp ?? demoSteps; const listId = useId(); const running = steps.find((step) => step.status === "running"); const failed = steps.find((step) => step.status === "error"); const isDone = steps.length > 0 && steps.every((step) => step.status === "done"); const isActive = Boolean(running); const seconds = useElapsed(isActive, isDone); const times = useStepTimes(steps); // Open while working; folds away once everything is done, until the user // opens it again. // Synced during render rather than in an effect, so a list that mounts // already done starts folded instead of playing a collapse. const shouldCollapse = isDone && collapseWhenDone; const [isOpen, setIsOpen] = useState(!shouldCollapse); const [wasCollapsed, setWasCollapsed] = useState(shouldCollapse); if (wasCollapsed !== shouldCollapse) { setWasCollapsed(shouldCollapse); setIsOpen(!shouldCollapse); } let title = "Getting ready"; if (failed) { title = `Stopped at: ${failed.label}`; } else if (isDone) { // A run that was already done when it mounted (an older message) was // never timed here, so it doesn't claim "Worked for 0s". title = seconds > 0 ? `Worked for ${formatDuration(seconds)}` : "Done"; } else if (running) { title = running.label; } return (

{isOpen && ( {steps.map((step, i) => ( ))} )}

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