52: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/3j06ow7w40nxu.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"] 53: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/3j06ow7w40nxu.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"] 54:T25c5,"use client"; import { useCallback, useEffect, useMemo, useRef, useState } from "react"; import { AnimatePresence, animate, motion, useMotionValue, useReducedMotion, useTransform, type MotionValue, } from "motion/react"; const WAVE_MS = 1.25; const SURFACE = { type: "spring", stiffness: 380, damping: 30, mass: 0.8 } as const; const CROSSFADE = { type: "spring", stiffness: 260, damping: 34, mass: 0.8 } as const; const EASE = [0.23, 1, 0.32, 1] as const; const LEAVE = [0.4, 0, 1, 1] as const; const INSTANT = { duration: 0 } as const; const SEND_MS = 340; export type UseTypingPresenceOptions = { timeout?: number; minVisible?: number; }; export type TypingPresence = { typists: string[]; beat: number; sending: boolean; ping: (name: string) => void; send: (name: string) => void; clear: (name: string) => void; reset: () => void; }; export function useTypingPresence({ timeout = 3000, minVisible = 900, }: UseTypingPresenceOptions = {}): TypingPresence { const [presence, setPresence] = useState<{ typists: string[]; beat: number }>({ typists: [], beat: 0, }); const [sending, setSending] = useState(false); const seen = useRef(new Map()); const shown = useRef([]); const shownAt = useRef(0); const sweep = useRef | null>(null); const release = useRef | null>(null); const settle = useRef<(bump: boolean) => void>(() => {}); const commit = useCallback( (bump: boolean) => { const now = Date.now(); for (const [name, at] of seen.current) { if (at + timeout <= now) seen.current.delete(name); } let next = Infinity; for (const at of seen.current.values()) next = Math.min(next, at + timeout); let roster = Array.from(seen.current.keys()); if (roster.length === 0 && shown.current.length > 0) { const until = shownAt.current + minVisible; if (until > now) { roster = shown.current; next = Math.min(next, until); } } const changed = roster.length !== shown.current.length || roster.some((name, i) => name !== shown.current[i]); if (changed) { if (shown.current.length === 0) shownAt.current = now; shown.current = roster; } if (changed || bump) { setPresence((prev) => ({ typists: changed ? roster : prev.typists, beat: changed && roster.length === 0 ? 0 : bump ? prev.beat + 1 : prev.beat, })); } if (sweep.current) clearTimeout(sweep.current); sweep.current = next === Infinity ? null : setTimeout(() => settle.current(false), Math.max(24, next - now)); }, [timeout, minVisible], ); settle.current = commit; const ping = useCallback( (name: string) => { if (release.current) { clearTimeout(release.current); release.current = null; setSending(false); shown.current = []; shownAt.current = 0; } seen.current.set(name, Date.now()); commit(true); }, [commit], ); const clear = useCallback( (name: string) => { if (!seen.current.delete(name)) return; commit(false); }, [commit], ); const send = useCallback((name: string) => { if (!seen.current.has(name) && !shown.current.includes(name)) return; seen.current.delete(name); if (sweep.current) clearTimeout(sweep.current); sweep.current = null; setSending(true); if (release.current) clearTimeout(release.current); release.current = setTimeout(() => { release.current = null; setSending(false); shown.current = []; shownAt.current = 0; setPresence({ typists: [], beat: 0 }); if (seen.current.size > 0) settle.current(false); }, SEND_MS); }, []); const reset = useCallback(() => { if (sweep.current) clearTimeout(sweep.current); if (release.current) clearTimeout(release.current); sweep.current = null; release.current = null; seen.current.clear(); shown.current = []; shownAt.current = 0; setSending(false); setPresence({ typists: [], beat: 0 }); }, []); useEffect(() => { return () => { if (sweep.current) clearTimeout(sweep.current); if (release.current) clearTimeout(release.current); sweep.current = null; release.current = null; }; }, []); return { typists: presence.typists, beat: presence.beat, sending, ping, send, clear, reset, }; } function describe(names: string[], max: number): string { if (names.length === 0) return ""; const head = names.slice(0, Math.max(1, max)); const rest = names.length - head.length; if (rest > 0) { return `${head.join(", ")} and ${rest} ${rest === 1 ? "other" : "others"} are typing`; } if (head.length === 1) return `${head[0]} is typing`; return `${head.slice(0, -1).join(", ")} and ${head[head.length - 1]} are typing`; } function Dot({ index, wave, size, }: { index: number; wave: MotionValue; size: number; }) { const lift = useTransform(wave, (w) => { let distance = (w - index) % 3; if (distance < 0) distance += 3; if (distance > 1.5) distance -= 3; return Math.max(0, 1 - Math.abs(distance)); }); const scale = useTransform(lift, [0, 1], [0.74, 1]); const opacity = useTransform(lift, [0, 1], [0.32, 1]); return ( ); } export type TypingIndicatorProps = { typists: string[]; sending?: boolean; max?: number; size?: number; showLabel?: boolean; announceAfter?: number; className?: string; }; export function TypingIndicator({ typists, sending = false, max = 2, size = 34, showLabel = true, announceAfter = 700, className = "", }: TypingIndicatorProps) { const reduced = useReducedMotion(); const label = useMemo(() => describe(typists, max), [typists, max]); const active = typists.length > 0; const wave = useMotionValue(0); useEffect(() => { if (!active || reduced) { wave.jump(0); return; } const controls = animate(wave, 3, { duration: WAVE_MS, ease: "linear", repeat: Infinity, repeatType: "loop", }); return () => controls.stop(); }, [active, reduced, wave]); const [announced, setAnnounced] = useState(label); useEffect(() => { const timer = setTimeout(() => setAnnounced(label), announceAfter); return () => clearTimeout(timer); }, [label, announceAfter]); const width = Math.round(size * 2); const dot = Math.round(size * 0.23); const gap = Math.round(size * 0.15); const radius = Math.round(size * 0.47); return (

{active ? ( {[0, 1, 2].map((i) => reduced ? ( ) : ( ), )} ) : null}

{showLabel ? ( {label && !sending ? ( {label} ) : null} ) : null} {announced}

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