{title}

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/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"] 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/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"] 52:T482e,"use client"; // karaui.kamisama-v0.my.id/components/agents/conversation-history import { MessageSquare, Pencil, Pin, PinOff, Plus, Search, Trash2 } from "lucide-react"; import { AnimatePresence, LayoutGroup, motion, useReducedMotion, } from "motion/react"; import { type CSSProperties, type KeyboardEvent, type ReactNode, useCallback, useEffect, useId, useMemo, useRef, useState, } from "react"; import { EmptyState } from "@/components/motion/empty-state"; import { InlineEdit } from "@/components/motion/inline-edit"; import { ScrollArea } from "@/components/motion/scroll-area"; import { Skeleton } from "@/components/motion/skeleton"; import { EASE_OUT, SPRING_LAYOUT, SPRING_SWAP } from "@/lib/ease"; import { cn } from "@/lib/utils"; export interface Conversation { id: string; title: string; /** Last activity. ISO string, epoch ms or Date. */ updatedAt: string | number | Date; pinned?: boolean; /** The title is still being generated: shows a blinking caret after it. */ streaming?: boolean; } export type ConversationGroup = "pinned" | "today" | "yesterday" | "week" | "older"; export interface ConversationHistoryProps { conversations?: Conversation[]; defaultConversations?: Conversation[]; onConversationsChange?: (conversations: Conversation[]) => void; activeId?: string | null; defaultActiveId?: string | null; onActiveIdChange?: (id: string) => void; /** Called after a rename commits; return a promise to keep the editor's spinner until it settles. */ onRename?: (id: string, title: string) => unknown; onPinChange?: (id: string, pinned: boolean) => void; onDelete?: (id: string) => void; /** Renders the "New chat" button. The parent inserts the conversation (usually `streaming`). */ onNewChat?: () => void; /** Override "today" (otherwise read after mount so server and client markup match). */ now?: Date; searchable?: boolean; labels?: Partial>; /** Max height of the scrolling list. Default 320. */ maxHeight?: number; emptyState?: ReactNode; className?: string; } const GROUP_LABELS: Record = { pinned: "Pinned", today: "Today", yesterday: "Yesterday", week: "Previous 7 days", older: "Older", }; const GROUP_ORDER: ConversationGroup[] = ["pinned", "today", "yesterday", "week", "older"]; const DAY_MS = 86_400_000; function toTime(value: Conversation["updatedAt"]) { return value instanceof Date ? value.getTime() : new Date(value).getTime(); } /** Bucket a conversation by calendar day relative to `now` (local time). */ export function groupConversation(conversation: Conversation, now: Date): ConversationGroup { if (conversation.pinned) return "pinned"; const startOfToday = new Date(now.getFullYear(), now.getMonth(), now.getDate()).getTime(); const t = toTime(conversation.updatedAt); if (t >= startOfToday) return "today"; if (t >= startOfToday - DAY_MS) return "yesterday"; if (t >= startOfToday - 7 * DAY_MS) return "week"; return "older"; } function useControllable( value: T | undefined, defaultValue: T, onChange: ((next: T) => void) | undefined, ) { const [internal, setInternal] = useState(defaultValue); const controlled = value !== undefined; const current = controlled ? value : internal; const set = useCallback( (next: T) => { if (!controlled) setInternal(next); onChange?.(next); }, [controlled, onChange], ); return [current, set] as const; } export function ConversationHistory({ conversations: conversationsProp, defaultConversations = [], onConversationsChange, activeId: activeIdProp, defaultActiveId = null, onActiveIdChange, onRename, onPinChange, onDelete, onNewChat, now: nowProp, searchable = true, labels, maxHeight = 320, emptyState, className, }: ConversationHistoryProps) { const uid = useId(); const reduce = useReducedMotion() ?? false; const [conversations, setConversations] = useControllable( conversationsProp, defaultConversations, onConversationsChange, ); const [activeId, setActiveId] = useControllable( activeIdProp, defaultActiveId, onActiveIdChange as ((id: string | null) => void) | undefined, ); const [query, setQuery] = useState(""); const [renamingId, setRenamingId] = useState(null); const listRef = useRef(null); // "Today" is only known on the client; grouping waits for it so the server // render never disagrees with the first client render. const [mountedNow, setMountedNow] = useState(null); useEffect(() => { if (!nowProp) setMountedNow(new Date()); }, [nowProp]); const now = nowProp ?? mountedNow; const groups = useMemo(() => { if (!now) return []; const q = query.trim().toLowerCase(); const buckets = new Map(); const sorted = [...conversations].sort((a, b) => toTime(b.updatedAt) - toTime(a.updatedAt)); for (const c of sorted) { if (q && !c.title.toLowerCase().includes(q)) continue; const g = groupConversation(c, now); const list = buckets.get(g) ?? []; list.push(c); buckets.set(g, list); } return GROUP_ORDER.filter((g) => buckets.has(g)).map((g) => ({ id: g, items: buckets.get(g) ?? [], })); }, [conversations, now, query]); const focusRow = (id: string) => { requestAnimationFrame(() => { listRef.current ?.querySelector(`[data-conversation-id="${CSS.escape(id)}"]`) ?.focus(); }); }; const update = (id: string, patch: Partial) => setConversations(conversations.map((c) => (c.id === id ? { ...c, ...patch } : c))); const remove = (id: string) => { const flat = groups.flatMap((g) => g.items); const index = flat.findIndex((c) => c.id === id); const neighbour = flat[index + 1] ?? flat[index - 1]; setConversations(conversations.filter((c) => c.id !== id)); onDelete?.(id); if (neighbour) focusRow(neighbour.id); }; // Up/Down (and Home/End) move between conversation rows. const onListKeyDown = (event: KeyboardEvent) => { if (!["ArrowDown", "ArrowUp", "Home", "End"].includes(event.key)) return; const target = event.target as HTMLElement; if (!target.dataset.conversationId) return; const rows = Array.from( listRef.current?.querySelectorAll("[data-conversation-id]") ?? [], ); const i = rows.indexOf(target); const next = event.key === "Home" ? rows[0] : event.key === "End" ? rows[rows.length - 1] : rows[i + (event.key === "ArrowDown" ? 1 : -1)]; if (next) { event.preventDefault(); next.focus(); } }; const total = groups.reduce((n, g) => n + g.items.length, 0); return (

{(onNewChat || searchable) && (

{searchable && ( )} {onNewChat && ( )}

)} {/* biome-ignore lint/a11y/noStaticElementInteractions: delegates arrow keys to the row buttons inside */}

{!now ? (

{[72, 58, 80, 64].map((w) => ( ))}

) : total === 0 ? ( (emptyState ?? ( } title={query ? "No matching chats" : "No conversations yet"} description={query ? `Nothing matches “${query}”.` : "Start a new chat to see it here."} /> )) ) : ( {groups.map((group) => (

{group.id === "pinned" &&

{group.items.map((conversation) => ( setActiveId(conversation.id)} onStartRename={() => setRenamingId(conversation.id)} onEndRename={() => { setRenamingId(null); focusRow(conversation.id); }} onRename={(title) => { update(conversation.id, { title }); return onRename?.(conversation.id, title); }} onTogglePin={() => { const pinned = !conversation.pinned; update(conversation.id, { pinned }); onPinChange?.(conversation.id, pinned); focusRow(conversation.id); }} onDelete={() => remove(conversation.id)} /> ))}

))} )}

{query && now ? `${total} conversation${total === 1 ? "" : "s"} found` : ""}

); } interface ConversationRowProps { uid: string; conversation: Conversation; active: boolean; renaming: boolean; reduce: boolean; onSelect: () => void; onStartRename: () => void; onEndRename: () => void; onRename: (title: string) => unknown; onTogglePin: () => void; onDelete: () => void; } function ConversationRow({ uid, conversation, active, renaming, reduce, onSelect, onStartRename, onEndRename, onRename, onTogglePin, onDelete, }: ConversationRowProps) { const editRef = useRef(null); // InlineEdit opens from its own display button; press it once so the // Rename action lands straight in the editor. useEffect(() => { if (renaming) editRef.current?.querySelector("button")?.click(); }, [renaming]); return ( {active && ( )} {renaming ? (

(next.trim() ? null : "Title can't be empty")} onSave={(next) => onRename(next.trim())} onEditingChange={(editing) => { if (!editing) onEndRename(); }} className="mx-0" />

) : ( <>

{conversation.pinned ? : }

)} ); } function RowAction({ label, destructive, onClick, children, }: { label: string; destructive?: boolean; onClick: () => void; children: ReactNode; }) { return ( ); } 53:T2215,"use client"; import { motion, useReducedMotion, type Variants } from "motion/react"; import type { ReactNode } from "react"; import { EASE_IN_OUT, EASE_OUT } from "@/lib/ease"; import { cn } from "@/lib/utils"; export type EmptyStateSize = "sm" | "md" | "lg"; export type EmptyStateIllustrationVariant = "documents" | "search"; /* -------------------------------------------------------------------------- */ /* Illustration */ /* -------------------------------------------------------------------------- */ export interface EmptyStateIllustrationProps { variant?: EmptyStateIllustrationVariant; /** Width in px; height follows the 5:4 viewBox. */ size?: number; className?: string; } const draw = (delay: number, reduce: boolean) => ({ initial: reduce ? { pathLength: 1, opacity: 0 } : { pathLength: 0, opacity: 0 }, whileInView: { pathLength: 1, opacity: 1 }, viewport: { once: true }, transition: reduce ? { duration: 0.2 } : { pathLength: { duration: 0.5, ease: EASE_OUT, delay }, opacity: { duration: 0.1, delay }, }, }); // Idle float: translate only (no rotate/scale), so no SVG transform-origin is // involved. Rotations in the art are static `transform` attributes on an // inner that motion never touches. const float = (reduce: boolean, amplitude: number, duration: number, delay: number) => reduce ? {} : { animate: { y: [0, -amplitude, 0] }, transition: { duration, ease: EASE_IN_OUT, repeat: Infinity, delay }, }; /** Small default empty-state art: a floating document stack or a search lens. */ export function EmptyStateIllustration({ variant = "documents", size = 120, className, }: EmptyStateIllustrationProps) { const reduce = useReducedMotion() ?? false; const lineClass = "stroke-border-strong"; return ( ); } /* -------------------------------------------------------------------------- */ /* EmptyState */ /* -------------------------------------------------------------------------- */ export interface EmptyStateProps { title: ReactNode; description?: ReactNode; /** * Icon or illustration slot. Defaults to ``; * pass `null` for none. */ icon?: ReactNode; /** Primary call to action (e.g. a library `Button`). */ action?: ReactNode; /** Secondary call to action, rendered after the primary. */ secondaryAction?: ReactNode; size?: EmptyStateSize; /** Dashed border container, for empty regions inside a page. */ bordered?: boolean; /** Heading element for the title. Default `h3`. */ titleAs?: "h2" | "h3" | "h4" | "p"; /** Extra content under the actions (links, hints). */ children?: ReactNode; className?: string; } const SIZE: Record< EmptyStateSize, { root: string; title: string; description: string; art: number } > = { sm: { root: "gap-3 px-4 py-6", title: "text-sm", description: "text-xs max-w-[32ch]", art: 88 }, md: { root: "gap-4 px-6 py-10", title: "text-base", description: "text-sm max-w-[38ch]", art: 120 }, lg: { root: "gap-5 px-8 py-14", title: "text-lg", description: "text-base max-w-[44ch]", art: 152 }, }; /** * Empty-state block: illustration, title, description and actions that * stagger in when scrolled into view (opacity + small rise; opacity only under * reduced motion). */ export function EmptyState({ title, description, icon, action, secondaryAction, size = "md", bordered = false, titleAs: Title = "h3", children, className, }: EmptyStateProps) { const reduce = useReducedMotion(); const s = SIZE[size]; const container: Variants = { hidden: {}, show: { transition: { staggerChildren: 0.07, delayChildren: 0.05 } }, }; const item: Variants = { hidden: { opacity: 0, y: reduce ? 0 : 8 }, show: { opacity: 1, y: 0, transition: { duration: 0.32, ease: EASE_OUT } }, }; const art = icon === undefined ? : icon; return ( {art != null ? ( {art} ) : null}

{title} {description != null ? ( {description} ) : null}

{action != null || secondaryAction != null ? ( {action} {secondaryAction} ) : null} {children != null ? {children} : null} ); } 54:T3b2b,"use client"; import { AnimatePresence, animate, motion, useReducedMotion, } from "motion/react"; import { useCallback, useEffect, useId, useRef, useState, type KeyboardEvent, } from "react"; import { Loader } from "@/components/motion/loader"; import { EASE_OUT, SPRING_PRESS, SPRING_SWAP } from "@/lib/ease"; import { cn } from "@/lib/utils"; export type InlineEditClassNames = { root?: string; display?: string; input?: string; placeholder?: string; errorMessage?: string; }; export interface InlineEditProps { /** Accessible name of the field ("Name", "Bio"); also used in the edit hint. */ label: string; value?: string; defaultValue?: string; /** * Commit handler. Return a promise to show a pending spinner; the shown value * rolls back (with a shake and the rejection message) if it rejects. * Controlled callers update `value` here. */ onSave?: (next: string) => unknown; onCancel?: () => void; onEditingChange?: (editing: boolean) => void; /** Return an error message to block the save and keep the editor open. */ validate?: (next: string) => string | null | undefined | false; /** Edit in an auto-growing textarea; Enter saves, Shift+Enter adds a line. */ multiline?: boolean; placeholder?: string; maxLength?: number; /** Select the whole text when the editor opens (default) or put the caret at the end. */ selectOnEdit?: boolean; disabled?: boolean; className?: string; classNames?: InlineEditClassNames; } type Status = "idle" | "pending" | "saved"; const SHAKE = { x: [0, -6, 6, -4, 4, -2, 0] }; const SAVED_FLASH_MS = 1400; function messageOf(reason: unknown) { if (reason instanceof Error && reason.message) return reason.message; if (typeof reason === "string" && reason) return reason; return "Couldn't save. Try again."; } function isThenable(value: unknown): value is PromiseLike { return ( typeof value === "object" && value !== null && typeof (value as PromiseLike).then === "function" ); } export function InlineEdit({ label, value: valueProp, defaultValue, onSave, onCancel, onEditingChange, validate, multiline = false, placeholder = "Empty", maxLength, selectOnEdit = true, disabled, className, classNames, }: InlineEditProps) { const id = useId(); const reduce = useReducedMotion(); const controlled = valueProp !== undefined; const [internal, setInternal] = useState(defaultValue ?? ""); const value = controlled ? (valueProp ?? "") : internal; const [editing, setEditing] = useState(false); const [draft, setDraft] = useState(value); const [status, setStatus] = useState("idle"); const [pendingValue, setPendingValue] = useState(""); const [error, setError] = useState(null); // Refs gate commit/cancel so the blur fired while the editor unmounts can't // save a second time. const editingRef = useRef(false); const restoreFocusRef = useRef(false); const saveIdRef = useRef(0); const flashTimer = useRef | null>(null); const mountedRef = useRef(true); const boxRef = useRef(null); const displayRef = useRef(null); const fieldRef = useRef(null); useEffect(() => { mountedRef.current = true; return () => { mountedRef.current = false; if (flashTimer.current) clearTimeout(flashTimer.current); }; }, []); const shake = useCallback(() => { if (!boxRef.current || reduce) return; animate(boxRef.current, SHAKE, { duration: 0.45 }); }, [reduce]); const setEditingState = (next: boolean) => { editingRef.current = next; setEditing(next); onEditingChange?.(next); }; // Focus the editor as it opens; return focus to the text after a // keyboard commit or cancel (not after blur — that would steal focus). useEffect(() => { if (editing) { const field = fieldRef.current; if (!field) return; field.focus(); if (selectOnEdit) field.select(); else field.setSelectionRange(field.value.length, field.value.length); } else if (restoreFocusRef.current) { restoreFocusRef.current = false; displayRef.current?.focus(); } }, [editing, selectOnEdit]); const startEditing = () => { if (disabled || editingRef.current || status === "pending") return; if (flashTimer.current) clearTimeout(flashTimer.current); setStatus("idle"); setDraft(value); setError(null); setEditingState(true); }; const cancel = () => { if (!editingRef.current) return; restoreFocusRef.current = true; setDraft(value); setError(null); setEditingState(false); onCancel?.(); }; const flashSaved = () => { setStatus("saved"); if (flashTimer.current) clearTimeout(flashTimer.current); flashTimer.current = setTimeout(() => { if (mountedRef.current) setStatus("idle"); }, SAVED_FLASH_MS); }; const commit = (via: "key" | "blur") => { if (!editingRef.current) return; const next = draft; if (next === value) { if (via === "key") restoreFocusRef.current = true; setError(null); setEditingState(false); return; } const invalid = validate?.(next); if (invalid) { setError(invalid); shake(); return; } if (via === "key") restoreFocusRef.current = true; setError(null); setEditingState(false); const result = onSave?.(next); if (!isThenable(result)) { if (!controlled) setInternal(next); flashSaved(); return; } const saveId = ++saveIdRef.current; setPendingValue(next); setStatus("pending"); Promise.resolve(result).then( () => { if (!mountedRef.current || saveId !== saveIdRef.current) return; if (!controlled) setInternal(next); flashSaved(); }, (reason: unknown) => { if (!mountedRef.current || saveId !== saveIdRef.current) return; setStatus("idle"); setError(messageOf(reason)); shake(); }, ); }; const onFieldKeyDown = ( event: KeyboardEvent, ) => { if (event.nativeEvent.isComposing) return; if (event.key === "Escape") { event.preventDefault(); event.stopPropagation(); cancel(); } else if (event.key === "Enter" && !(multiline && event.shiftKey)) { event.preventDefault(); commit("key"); } }; const shown = status === "pending" ? pendingValue : value; const errorId = `${id}-error`; // Display and editor share this box model exactly, so swapping them never // moves the text. The -mx-2 hangs the padding outside so text aligns with // surrounding content. const textBox = cn( "w-full rounded-lg px-2 py-1 pr-8 text-left", multiline ? "whitespace-pre-wrap break-words" : "", ); const iconSlot = cn( "pointer-events-none absolute right-2 z-10 flex size-4 items-center justify-center", multiline ? "top-[calc(0.25rem+0.5lh)] -translate-y-1/2" : "top-1/2 -translate-y-1/2", ); const motionIn = reduce ? { opacity: 1 } : { opacity: 1, scale: 1 }; const motionOut = reduce ? { opacity: 0 } : { opacity: 0, scale: 0.6 }; return (

{/* Field surface: fades and settles in under the text while editing. */} {editing ? ( multiline ? (

{
                  setDraft(e.target.value);
                  if (error) setError(null);
                }}
                onKeyDown={onFieldKeyDown}
                onBlur={() => commit("blur")}
                className={cn(
                  textBox,
                  "relative resize-none overflow-hidden bg-transparent text-foreground caret-foreground outline-none [grid-area:1/1] placeholder:text-muted-foreground/60",
                  classNames?.input,
                )}
              />
            </div>
          ) : (
            <input
              ref={fieldRef}
              aria-label={label}
              aria-invalid={error ? true : undefined}
              aria-describedby={error ? errorId : undefined}
              value={draft}
              maxLength={maxLength}
              placeholder={placeholder}
              onChange={(e) => {
                setDraft(e.target.value);
                if (error) setError(null);
              }}
              onKeyDown={onFieldKeyDown}
              onBlur={() => commit("blur")}
              className={cn(
                textBox,
                "relative block bg-transparent text-foreground caret-foreground outline-none placeholder:text-muted-foreground/60",
                classNames?.input,
              )}
            />
          )
        ) : (
          <button
            ref={displayRef}
            type="button"
            disabled={disabled}
            aria-describedby={error ? errorId : undefined}
            onClick={startEditing}
            onKeyDown={(event) => {
              if (event.key === "F2") {
                event.preventDefault();
                startEditing();
              }
            }}
            className={cn(
              textBox,
              "relative block cursor-text transition-[background-color,opacity] duration-150",
              "outline-none hover:bg-muted/70 focus-visible:ring-2 focus-visible:ring-ring/50",
              !multiline && "truncate",
              status === "pending" && "opacity-70",
              disabled && "cursor-not-allowed hover:bg-transparent",
              classNames?.display,
            )}
          >
            {shown ? (
              shown
            ) : (
              <span
                className={cn(
                  "text-muted-foreground/70 italic",
                  classNames?.placeholder,
                )}
              >
                {placeholder}
              </span>
            )}
            <span className="sr-only">, edit {label}</span>
          </button>
        )}

<span className={iconSlot}>
          <AnimatePresence initial={false} mode="popLayout">
            {status === "pending" ? (
              <motion.span
                key="pending"
                className="flex"
                initial={motionOut}
                animate={motionIn}
                exit={motionOut}
                transition={SPRING_SWAP}
              >
                <Loader
                  variant="spinner"
                  size={14}
                  label="Saving"
                  className="text-muted-foreground"
                />
              </motion.span>
            ) : status === "saved" ? (
              <motion.span
                key="saved"
                className="flex size-4 items-center justify-center rounded-full bg-success text-background"
                initial={motionOut}
                animate={motionIn}
                exit={{ opacity: 0 }}
                transition={SPRING_PRESS}
              >
                <svg viewBox="0 0 24 24" fill="none" className="size-3" aria-hidden="true">
                  <motion.path
                    d="M5 12.5l4.5 4.5L19 7.5"
                    stroke="currentColor"
                    strokeWidth={3}
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    initial={reduce ? { pathLength: 1 } : { pathLength: 0 }}
                    animate={{ pathLength: 1 }}
                    transition={{ duration: 0.3, ease: EASE_OUT, delay: 0.05 }}
                  />
                </svg>
              </motion.span>
            ) : !editing && !disabled ? (
              <motion.span
                key="pencil"
                className="flex text-muted-foreground"
                initial={{ opacity: 0 }}
                animate={{ opacity: 1 }}
                exit={{ opacity: 0 }}
                transition={{ duration: 0.15 }}
              >
                <span className="flex opacity-0 transition-opacity duration-150 group-hover:opacity-100 group-has-[:focus-visible]:opacity-100">
                  <svg
                    viewBox="0 0 24 24"
                    fill="none"
                    stroke="currentColor"
                    strokeWidth={2}
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    className="size-3.5"
                    aria-hidden="true"
                  >
                    <path d="M12 20h9" />
                    <path d="M16.5 3.5a2.12 2.12 0 0 1 3 3L7 19l-4 1 1-4Z" />
                  </svg>
                </span>
              </motion.span>
            ) : null}
          </AnimatePresence>
        </span>
      </div>

<span className="sr-only" aria-live="polite">
        {status === "pending" ? "Saving" : status === "saved" ? "Saved" : ""}
      </span>

<AnimatePresence initial={false}>
        {error ? (
          <motion.p
            id={errorId}
            role="alert"
            initial={
              reduce
                ? { opacity: 0 }
                : { opacity: 0, y: -4, filter: "blur(4px)" }
            }
            animate={{ opacity: 1, y: 0, filter: "blur(0px)" }}
            exit={
              reduce
                ? { opacity: 0 }
                : { opacity: 0, y: -4, filter: "blur(4px)" }
            }
            transition={{ duration: 0.2 }}
            className={cn(
              "px-2 pt-1 text-xs text-destructive",
              classNames?.errorMessage,
            )}
          >
            {error}
          </motion.p>
        ) : null}
      </AnimatePresence>
    </div>
  );
}
55:T3234,"use client";

import { motion, useReducedMotion } from "motion/react";
import {
  useCallback,
  useEffect,
  useImperativeHandle,
  useRef,
  useState,
  type CSSProperties,
  type HTMLAttributes,
  type PointerEvent as ReactPointerEvent,
  type ReactNode,
  type Ref,
} from "react";
import { EASE_OUT } from "@/lib/ease";
import { cn } from "@/lib/utils";

// ScrollArea keeps the browser's own scrolling (wheel, touch momentum,
// keyboard, scroll anchoring, find-in-page) and only replaces the *painted*
// scrollbar: the native bar is hidden and an overlay thumb is drawn on top.
// The thumb is a visual affordance (aria-hidden); keyboard and assistive tech
// scroll the focusable viewport itself.

export type ScrollAreaOrientation = "vertical" | "horizontal" | "both";
/** `hover`: visible while hovered or scrolling. `scroll`: only while scrolling. `always`: whenever content overflows. */
export type ScrollAreaType = "hover" | "scroll" | "always";

export interface ScrollAreaProps extends Omit<HTMLAttributes<HTMLDivElement>, "dir"> {
  children?: ReactNode;
  orientation?: ScrollAreaOrientation;
  type?: ScrollAreaType;
  /** Milliseconds of idle before the thumb fades out. */
  scrollHideDelay?: number;
  /** Fade the content out at edges that have more content beyond them. */
  fadeEdges?: boolean;
  /** Maximum fade length in px; it grows with the distance from the edge. */
  fadeSize?: number;
  /** Class for the scrolling viewport (padding usually belongs here). */
  viewportClassName?: string;
  /** Ref to the native scroll container, for `scrollTo` or virtualizers. */
  viewportRef?: Ref<HTMLElement | null>;
  /** Accessible name for the focusable scroll region. */
  "aria-label"?: string;
}

const MIN_THUMB = 24;
const TRACK_INSET = 2;
/** Fraction of the visible size a track click pages by (keeps a little context). */
const PAGE_FACTOR = 0.9;

type Axis = "x" | "y";

export function ScrollArea({
  children,
  orientation = "vertical",
  type = "hover",
  scrollHideDelay = 700,
  fadeEdges = true,
  fadeSize = 28,
  className,
  viewportClassName,
  viewportRef,
  "aria-label": ariaLabel,
  onPointerEnter,
  onPointerLeave,
  ...rest
}: ScrollAreaProps) {
  const reduce = useReducedMotion();
  const viewport = useRef<HTMLElement>(null);
  const content = useRef<HTMLDivElement>(null);
  const thumbs = useRef<Record<Axis, HTMLDivElement | null>>({ x: null, y: null });
  const tracks = useRef<Record<Axis, HTMLDivElement | null>>({ x: null, y: null });
  const hideTimer = useRef<ReturnType<typeof setTimeout> | undefined>(undefined);
  const hovering = useRef(false);
  const dragging = useRef<{
    axis: Axis;
    pointer: number;
    scroll: number;
    ratio: number;
  } | null>(null);

const [overflow, setOverflow] = useState({ x: false, y: false });
  const [visible, setVisible] = useState(false);

useImperativeHandle(viewportRef, () => viewport.current as HTMLElement, []);

const allowX = orientation !== "vertical";
  const allowY = orientation !== "horizontal";

// Geometry is written straight to the DOM on every scroll frame so a long
  // list never re-renders React while scrolling.
  const update = useCallback(() => {
    const el = viewport.current;
    if (!el) return;
    const { scrollTop, scrollLeft, scrollHeight, scrollWidth, clientHeight, clientWidth } = el;
    const hasY = allowY && scrollHeight - clientHeight > 1;
    const hasX = allowX && scrollWidth - clientWidth > 1;
    setOverflow((prev) => (prev.x === hasX && prev.y === hasY ? prev : { x: hasX, y: hasY }));

if (fadeEdges) {
      // Fade length tracks the distance to each edge, so the mask eases in
      // and out as you leave or reach an end instead of popping.
      const top = hasY ? Math.min(fadeSize, scrollTop) : 0;
      const bottom = hasY ? Math.min(fadeSize, scrollHeight - clientHeight - scrollTop) : 0;
      const left = hasX ? Math.min(fadeSize, scrollLeft) : 0;
      const right = hasX ? Math.min(fadeSize, scrollWidth - clientWidth - scrollLeft) : 0;
      el.style.setProperty("--sa-top", `${Math.max(0, top)}px`);
      el.style.setProperty("--sa-bottom", `${Math.max(0, bottom)}px`);
      el.style.setProperty("--sa-left", `${Math.max(0, left)}px`);
      el.style.setProperty("--sa-right", `${Math.max(0, right)}px`);
    }
  }, [allowX, allowY, fadeEdges, fadeSize]);

const scheduleHide = useCallback(() => {
    clearTimeout(hideTimer.current);
    hideTimer.current = setTimeout(() => {
      if (dragging.current) return;
      if (type === "hover" && hovering.current) return;
      setVisible(false);
    }, scrollHideDelay);
  }, [scrollHideDelay, type]);

const reveal = useCallback(() => {
    setVisible(true);
    scheduleHide();
  }, [scheduleHide]);

useEffect(() => {
    const el = viewport.current;
    const inner = content.current;
    if (!el || !inner) return;
    update();
    const observer = new ResizeObserver(() => update());
    observer.observe(el);
    observer.observe(inner);
    return () => observer.disconnect();
  }, [update]);

// Bars mount only once overflow is known; place their thumbs right after.
  useEffect(() => {
    if (overflow.x || overflow.y) update();
  }, [overflow.x, overflow.y, update]);

useEffect(() => () => clearTimeout(hideTimer.current), []);

const onScroll = () => {
    update();
    if (type !== "always") reveal();
  };

const startDrag = (axis: Axis) => (event: ReactPointerEvent<HTMLDivElement>) => {
    const el = viewport.current;
    const track = tracks.current[axis];
    const thumb = thumbs.current[axis];
    if (!el || !track || !thumb || event.button !== 0) return;
    event.preventDefault();
    event.stopPropagation();
    const trackLen = axis === "y" ? track.clientHeight : track.clientWidth;
    const thumbLen = axis === "y" ? thumb.offsetHeight : thumb.offsetWidth;
    const max = axis === "y" ? el.scrollHeight - el.clientHeight : el.scrollWidth - el.clientWidth;
    dragging.current = {
      axis,
      pointer: axis === "y" ? event.clientY : event.clientX,
      scroll: axis === "y" ? el.scrollTop : el.scrollLeft,
      ratio: trackLen - thumbLen > 0 ? max / (trackLen - thumbLen) : 0,
    };
    event.currentTarget.setPointerCapture(event.pointerId);
    setVisible(true);
    clearTimeout(hideTimer.current);
  };

const onDragMove = (event: ReactPointerEvent<HTMLDivElement>) => {
    const drag = dragging.current;
    const el = viewport.current;
    if (!drag || !el) return;
    const delta = (drag.axis === "y" ? event.clientY : event.clientX) - drag.pointer;
    if (drag.axis === "y") el.scrollTop = drag.scroll + delta * drag.ratio;
    else el.scrollLeft = drag.scroll + delta * drag.ratio;
  };

const endDrag = (event: ReactPointerEvent<HTMLDivElement>) => {
    if (!dragging.current) return;
    dragging.current = null;
    if (event.currentTarget.hasPointerCapture(event.pointerId)) {
      event.currentTarget.releasePointerCapture(event.pointerId);
    }
    if (type !== "always") scheduleHide();
  };

// Clicking the empty track pages one viewport toward the click, like a
  // native scrollbar track.
  const pageTrack = (axis: Axis) => (event: ReactPointerEvent<HTMLDivElement>) => {
    const el = viewport.current;
    const thumb = thumbs.current[axis];
    if (!el || !thumb || event.button !== 0 || event.target !== event.currentTarget) return;
    event.preventDefault();
    const rect = thumb.getBoundingClientRect();
    const before = axis === "y" ? event.clientY < rect.top : event.clientX < rect.left;
    const page = (axis === "y" ? el.clientHeight : el.clientWidth) * PAGE_FACTOR;
    const amount = before ? -page : page;
    el.scrollBy({
      top: axis === "y" ? amount : 0,
      left: axis === "x" ? amount : 0,
      behavior: reduce ? "auto" : "smooth",
    });
  };

const shown = type === "always" || visible;
  const both = overflow.x && overflow.y;

return (
    <div
      className={cn("relative overflow-hidden", className)}
      onPointerEnter={(event) => {
        onPointerEnter?.(event);
        hovering.current = true;
        if (type === "hover") {
          setVisible(true);
          clearTimeout(hideTimer.current);
        }
      }}
      onPointerLeave={(event) => {
        onPointerLeave?.(event);
        hovering.current = false;
        if (type === "hover") scheduleHide();
      }}
      {...rest}
    >
      {/* The viewport is focusable (tabIndex 0) so keyboard users can scroll
          it (WCAG 2.1.1); pass `aria-label` to name the region. */}
      <section
        ref={viewport}
        aria-label={ariaLabel}
        // biome-ignore lint/a11y/noNoninteractiveTabindex: a scroll container must be focusable for keyboard scrolling (WCAG 2.1.1).
        tabIndex={0}
        onScroll={onScroll}
        style={viewportStyle}
        className={cn(
          "size-full outline-none [scrollbar-width:none] [&::-webkit-scrollbar]:hidden",
          "focus-visible:ring-2 focus-visible:ring-ring/50 focus-visible:ring-inset",
          allowY ? "overflow-y-auto" : "overflow-y-hidden",
          allowX ? "overflow-x-auto" : "overflow-x-hidden",
          viewportClassName,
        )}
      >
        {/* Horizontal content is laid out at its own width so the observer
            sees it grow; vertical content keeps the viewport's width. */}
        <div ref={content} className={cn(allowX ? "w-max min-w-full" : "min-w-full")}>
          {children}
        </div>
      </section>
      {overflow.y ? renderBar("y") : null}
      {overflow.x ? renderBar("x") : null}
    </div>
  );
}
56:T18c8,"use client";

import { AnimatePresence, motion, useReducedMotion } from "motion/react";
import {
  type CSSProperties,
  type ReactNode,
  useEffect,
  useRef,
  useState,
} from "react";
import { EASE_IN_OUT, EASE_OUT } from "@/lib/ease";
import { cn } from "@/lib/utils";

export type SkeletonShape = "rect" | "circle" | "text";

export interface SkeletonProps {
  shape?: SkeletonShape;
  /** CSS width (number = px). Text defaults to 100%, circles to 40px. */
  width?: number | string;
  /** CSS height (number = px). Circles default to their width. */
  height?: number | string;
  /** Sweep a highlight across the block. Reduced motion swaps it for a pulse. */
  shimmer?: boolean;
  className?: string;
  style?: CSSProperties;
}

const SHAPE_CLASS: Record<SkeletonShape, string> = {
  rect: "rounded-lg",
  circle: "rounded-full shrink-0",
  text: "h-3.5 rounded-md",
};

// Reduced motion: no sweep; the block breathes in opacity only.
const PULSE = {
  animate: { opacity: [1, 0.55, 1] },
  transition: { duration: 1.6, ease: EASE_IN_OUT, repeat: Infinity },
};

/**
 * A placeholder block. The shimmer is a gradient strip translated across the
 * block (transform only), clipped by the block's own overflow.
 */
export function Skeleton({
  shape = "rect",
  width,
  height,
  shimmer = true,
  className,
  style,
}: SkeletonProps) {
  const reduce = useReducedMotion();
  const resolvedWidth = width ?? (shape === "circle" ? 40 : undefined);
  const resolvedHeight = height ?? (shape === "circle" ? resolvedWidth : undefined);

return (
    <motion.div
      aria-hidden="true"
      className={cn(
        "relative overflow-hidden bg-muted",
        SHAPE_CLASS[shape],
        shape === "text" && "w-full",
        className,
      )}
      style={{ width: resolvedWidth, height: resolvedHeight, ...style }}
      animate={reduce && shimmer ? PULSE.animate : undefined}
      transition={reduce && shimmer ? PULSE.transition : undefined}
    >
      {shimmer && !reduce ? (
        <motion.span
          className="absolute inset-y-0 left-0 w-full bg-[linear-gradient(90deg,transparent,color-mix(in_oklab,var(--foreground)_9%,transparent),transparent)]"
          initial={{ x: "-100%" }}
          animate={{ x: "100%" }}
          transition={{
            duration: 1.5,
            ease: EASE_IN_OUT,
            repeat: Infinity,
            repeatDelay: 0.3,
          }}
        />
      ) : null}
    </motion.div>
  );
}

export interface SkeletonTextProps {
  /** Number of lines. */
  lines?: number;
  /** Width of the final line, so the block reads like a real paragraph. */
  lastLineWidth?: number | string;
  /** Gap between lines (Tailwind class). */
  gapClassName?: string;
  lineClassName?: string;
  shimmer?: boolean;
  className?: string;
}

/** A paragraph of text lines with a shorter, natural-looking last line. */
export function SkeletonText({
  lines = 3,
  lastLineWidth = "62%",
  gapClassName = "gap-2",
  lineClassName,
  shimmer = true,
  className,
}: SkeletonTextProps) {
  const count = Math.max(1, lines);
  return (
    <div aria-hidden="true" className={cn("flex w-full flex-col", gapClassName, className)}>
      {Array.from({ length: count }, (_, i) => (
        <Skeleton
          // biome-ignore lint/suspicious/noArrayIndexKey: lines are positional and never reorder
          key={i}
          shape="text"
          shimmer={shimmer}
          className={lineClassName}
          width={count > 1 && i === count - 1 ? lastLineWidth : "100%"}
        />
      ))}
    </div>
  );
}

export interface SkeletonSwapProps {
  /** While true the skeleton shows; flip to false to cross-fade to children. */
  loading: boolean;
  /** Placeholder rendered while loading — mirror the real content's shape. */
  skeleton: ReactNode;
  /** Real content. May be absent while loading. */
  children?: ReactNode;
  /**
   * Keep the last measured content height while reloading, so a reload never
   * collapses the box to the skeleton's height. Default true.
   */
  keepHeight?: boolean;
  /** Announced to screen readers while loading. */
  loadingLabel?: string;
  className?: string;
}

/**
 * Cross-fades from a skeleton to real content without layout shift: both
 * layers share one grid cell during the fade (the box takes the taller of the
 * two), and the last measured content height is held as a min-height while a
 * reload shows the skeleton again.
 */
export function SkeletonSwap({
  loading,
  skeleton,
  children,
  keepHeight = true,
  loadingLabel = "Loading",
  className,
}: SkeletonSwapProps) {
  const reduce = useReducedMotion();
  const contentRef = useRef<HTMLDivElement>(null);
  const [measured, setMeasured] = useState<number | null>(null);

useEffect(() => {
    const node = contentRef.current;
    if (loading || !node || typeof ResizeObserver === "undefined") return;
    const ro = new ResizeObserver(([entry]) => {
      if (entry) setMeasured(entry.borderBoxSize?.[0]?.blockSize ?? node.offsetHeight);
    });
    ro.observe(node);
    return () => ro.disconnect();
  }, [loading]);

return (
    <div
      aria-busy={loading}
      className={cn("relative grid", className)}
      style={keepHeight && loading && measured != null ? { minHeight: measured } : undefined}
    >
      <span className="sr-only" aria-live="polite">
        {loading ? loadingLabel : ""}
      </span>
      <AnimatePresence initial={false}>
        {loading ? (
          <motion.div
            key="skeleton"
            className="[grid-area:1/1]"
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            exit={{ opacity: 0, transition: { duration: 0.18, ease: EASE_OUT } }}
            transition={{ duration: 0.2, ease: EASE_OUT }}
          >
            {skeleton}
          </motion.div>
        ) : (
          <motion.div
            key="content"
            ref={contentRef}
            className="[grid-area:1/1]"
            initial={reduce ? { opacity: 0 } : { opacity: 0, y: 4, filter: "blur(4px)" }}
            animate={{ opacity: 1, y: 0, filter: "blur(0px)" }}
            exit={{ opacity: 0, transition: { duration: 0.12, ease: EASE_OUT } }}
            transition={{ duration: 0.28, ease: EASE_OUT }}
          >
            {children}
          </motion.div>
        )}
      </AnimatePresence>
    </div>
  );
}
57:T686,// Shared motion tokens. Easing curves mirror the CSS custom properties in
// globals.css; springs are the canonical physics used across components.
// Strong custom variants — defaults like `ease-in`/`ease-out` feel weak.

export const EASE_OUT = [0.16, 1, 0.3, 1] as const;
export const EASE_IN_OUT = [0.77, 0, 0.175, 1] as const;
export const EASE_DRAWER = [0.32, 0.72, 0, 1] as const;

/** CSS string form of EASE_OUT for inline style transitions. */
export const EASE_OUT_CSS = "cubic-bezier(0.16, 1, 0.3, 1)";

/** Press feedback on buttons and other tappable surfaces. */
export const SPRING_PRESS = {
  type: "spring",
  stiffness: 500,
  damping: 30,
  mass: 0.6,
} as const;

/** Content swaps — label/icon slots trading places inside a control. */
export const SPRING_SWAP = {
  type: "spring",
  stiffness: 460,
  damping: 30,
  mass: 0.55,
} as const;

/** Overlay panel entrances — modals and sheets summoned by pointer. */
export const SPRING_PANEL = {
  type: "spring",
  stiffness: 420,
  damping: 40,
  mass: 0.5,
} as const;

/** Shared-layout glides — pills, indicators and panels morphing between positions. */
export const SPRING_LAYOUT = {
  type: "spring",
  stiffness: 360,
  damping: 32,
  mass: 0.6,
} as const;

/** Cursor-follow physics for decorative mouse tracking (magnetic, tilt, dock). */
export const SPRING_MOUSE = {
  stiffness: 200,
  damping: 15,
  mass: 0.3,
} as const;

/** Dragged handles and fills (sliders) — critically damped `useSpring` config,
 * so the value follows the pointer butterily and never rebounds off an end. */
export const SPRING_GLIDE = {
  stiffness: 700,
  damping: 50,
  mass: 0.5,
} as const;
58:T475a,"use client";

import { motion, useReducedMotion } from "motion/react";
import { useEffect, useId, useState } from "react";
import { EASE_IN_OUT } from "@/lib/ease";
import { cn } from "@/lib/utils";

// Terminal-style frame sets — the loaders CLI AI agents cycle through.
const ASCII_SETS: Record<string, string[]> = {
  ascii: ["⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"],
  "ascii-line": ["|", "/", "-", "\\"],
  "ascii-braille": ["⣾", "⣽", "⣻", "⢿", "⡿", "⣟", "⣯", "⣷"],
  "ascii-blocks": ["▁", "▂", "▃", "▄", "▅", "▆", "▇", "█", "▇", "▆", "▅", "▄", "▃", "▂"],
  "ascii-bounce": ["⠁", "⠂", "⠄", "⡀", "⢀", "⠠", "⠐", "⠈"],
};

export interface LoaderProps {
  /** Which animation to render. */
  variant?: LoaderVariant;
  /** Base square size in px. Everything scales from this. */
  size?: number;
  /** Seconds per animation cycle. */
  speed?: number;
  /** Accessible label announced to screen readers. */
  label?: string;
  className?: string;
}

// Reduced motion keeps a calm opacity pulse and drops every transform.
const REDUCED = {
  animate: { opacity: [1, 0.4, 1] },
  transition: { duration: 1.4, ease: EASE_IN_OUT, repeat: Infinity },
};

export function Loader({
  variant = "spinner",
  size = 32,
  speed = 1,
  label = "Loading",
  className,
}: LoaderProps) {
  const reduce = useReducedMotion() ?? false;

return (
    <span
      role="status"
      aria-label={label}
      className={cn(
        "inline-flex items-center justify-center text-foreground",
        className,
      )}
    >
      {variant === "spinner" && <Spinner size={size} speed={speed} reduce={reduce} />}
      {variant === "dots" && <Dots size={size} speed={speed} reduce={reduce} />}
      {variant === "bars" && <Bars size={size} speed={speed} reduce={reduce} />}
      {variant === "dot-matrix" && (
        <DotMatrix size={size} speed={speed} reduce={reduce} />
      )}
      {variant === "dither" && <Dither size={size} speed={speed} reduce={reduce} />}
      {ASCII_SETS[variant] && (
        <Ascii frames={ASCII_SETS[variant]} size={size} speed={speed} reduce={reduce} />
      )}
      {variant === "morph" && <Morph size={size} speed={speed} reduce={reduce} />}
      {variant === "comet" && <Comet size={size} speed={speed} reduce={reduce} />}
      {variant === "scramble" && (
        <Scramble size={size} speed={speed} reduce={reduce} />
      )}
      {variant === "metaballs" && (
        <Metaballs size={size} speed={speed} reduce={reduce} />
      )}
      {variant === "newton" && <Newton size={size} speed={speed} reduce={reduce} />}
      {variant === "helix" && <Helix size={size} speed={speed} reduce={reduce} />}
      {variant === "percent" && (
        <Percent size={size} speed={speed} reduce={reduce} />
      )}
      <span className="sr-only">{label}</span>
    </span>
  );
}

interface PartProps {
  size: number;
  speed: number;
  reduce: boolean;
}

function Dots({ size, speed, reduce }: PartProps) {
  const dot = size * 0.24;
  return (
    <span className="flex items-center" style={{ gap: size * 0.14 }}>
      {[0, 1, 2].map((i) => (
        <motion.span
          key={i}
          className="rounded-full bg-current"
          style={{ width: dot, height: dot }}
          animate={
            reduce
              ? { opacity: [0.4, 1, 0.4] }
              : { y: [0, -size * 0.3, 0], opacity: [0.5, 1, 0.5] }
          }
          transition={{
            duration: speed,
            ease: EASE_IN_OUT,
            repeat: Infinity,
            delay: i * speed * 0.16,
          }}
        />
      ))}
    </span>
  );
}

return (
    <span
      className="font-mono leading-none tabular-nums"
      style={{ fontSize: size, lineHeight: 1 }}
    >
      {frames[frame % frames.length]}
    </span>
  );
}

// Each shape is sampled at the same number of points and emitted as an SVG
// path with identical command structure, so framer tweens the `d` attribute
// point-to-point — a real morph, not a snap. (clip-path polygon strings don't
// interpolate reliably in framer, which left the shapes broken.)
const MORPH_POINTS = 24;

function ngonRadius(ang: number, n: number, phase = 0) {
  const seg = (2 * Math.PI) / n;
  const a = ang - phase;
  const local = (((a % seg) + seg) % seg) - seg / 2;
  return Math.cos(Math.PI / n) / Math.cos(local);
}

const MORPH_PATHS = [
  morphPath(() => 1), // circle
  morphPath((a) => ngonRadius(a, 4, Math.PI / 4)), // square
  morphPath((a) => ngonRadius(a, 3)), // triangle
  morphPath((a) => ngonRadius(a, 6)), // hexagon
  morphPath((a) => ngonRadius(a, 4)), // diamond
];

// Each shape appears twice in a row so it fully forms and HOLDS before the
// next morph. Even keyframe spacing then alternates hold / morph segments.
const MORPH_SEQ = [...MORPH_PATHS.flatMap((p) => [p, p]), MORPH_PATHS[0]];
// Rotation and scale only change across the morph segments, staying put on the
// holds, so a settled shape sits still.
const MORPH_ROT = [0, 0, 72, 72, 144, 144, 216, 216, 288, 288, 360];
const MORPH_SCALE = [1, 1, 0.88, 0.88, 1, 1, 0.88, 0.88, 1, 1, 1];

function Morph({ size, speed, reduce }: PartProps) {
  return (
    <motion.svg
      width={size}
      height={size}
      viewBox="0 0 100 100"
      role="img"
      animate={
        reduce
          ? { opacity: [1, 0.4, 1] }
          : { rotate: MORPH_ROT, scale: MORPH_SCALE }
      }
      transition={
        reduce
          ? { duration: 1.4, ease: EASE_IN_OUT, repeat: Infinity }
          : { duration: speed * 5, ease: EASE_IN_OUT, repeat: Infinity }
      }
    >
      <title>Loading</title>
      <motion.path
        fill="currentColor"
        d={MORPH_PATHS[0]}
        animate={reduce ? undefined : { d: MORPH_SEQ }}
        transition={
          reduce
            ? undefined
            : { duration: speed * 5, ease: EASE_IN_OUT, repeat: Infinity }
        }
      />
    </motion.svg>
  );
}

const COMET_TRAIL = [0, 1, 2, 3, 4, 5];

const SCRAMBLE_TARGET = "LOADING";
const SCRAMBLE_GLYPHS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789<>/*#@";

return (
    <span
      className="font-mono font-medium tracking-[0.2em] tabular-nums"
      style={{ fontSize: size * 0.42 }}
    >
      {text}
    </span>
  );
}

function Metaballs({ size, speed, reduce }: PartProps) {
  const id = useId().replace(/:/g, "");
  return (
    <svg width={size} height={size} viewBox="0 0 100 100" role="img">
      <title>Loading</title>
      <defs>
        <filter id={id}>
          <feGaussianBlur in="SourceGraphic" stdDeviation="5" result="b" />
          <feColorMatrix
            in="b"
            values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 20 -8"
          />
        </filter>
      </defs>
      <g filter={`url(#${id})`} fill="currentColor">
        <motion.circle
          cy="50"
          r="15"
          animate={reduce ? { opacity: [0.4, 1, 0.4] } : { cx: [30, 70, 30] }}
          transition={{ duration: speed * 1.6, ease: EASE_IN_OUT, repeat: Infinity }}
          cx={reduce ? 40 : 30}
        />
        <motion.circle
          cy="50"
          r="15"
          animate={reduce ? { opacity: [0.4, 1, 0.4] } : { cx: [70, 30, 70] }}
          transition={{ duration: speed * 1.6, ease: EASE_IN_OUT, repeat: Infinity }}
          cx={reduce ? 60 : 70}
        />
      </g>
    </svg>
  );
}

const NEWTON_BALLS = [0, 1, 2, 3, 4];

return (
    <span className="flex items-center justify-center" style={{ height: d }}>
      {NEWTON_BALLS.map((i) => {
        const move = moves[i];
        return (
          <motion.span
            key={i}
            className="rounded-full bg-current"
            style={{ width: d, height: d }}
            animate={reduce || !move ? undefined : { x: move.x }}
            transition={
              reduce || !move
                ? undefined
                : {
                    duration: speed * 1.5,
                    ease: EASE_IN_OUT,
                    repeat: Infinity,
                    times: move.times,
                  }
            }
          />
        );
      })}
    </span>
  );
}

return (
    <span
      className="flex flex-col items-center"
      style={{ gap: size * 0.14, width: size * 1.4 }}
    >
      <span
        className="font-mono font-medium tabular-nums"
        style={{ fontSize: size * 0.42, lineHeight: 1 }}
      >
        {p}%
      </span>
      <span
        className="w-full overflow-hidden rounded-full bg-current/15"
        style={{ height: Math.max(3, size * 0.1) }}
      >
        <span
          className="block h-full rounded-full bg-current"
          style={{ width: `${p}%` }}
        />
      </span>
    </span>
  );
}

function Bars({ size, speed, reduce }: PartProps) {
  const bar = size * 0.16;
  return (
    <span className="flex items-center" style={{ gap: size * 0.1, height: size }}>
      {[0, 1, 2, 3].map((i) => (
        <motion.span
          key={i}
          className="rounded-full bg-current"
          style={{ width: bar, height: size, originY: 1 }}
          animate={
            reduce ? { opacity: [0.4, 1, 0.4] } : { scaleY: [0.3, 1, 0.3] }
          }
          transition={{
            duration: speed,
            ease: EASE_IN_OUT,
            repeat: Infinity,
            delay: i * speed * 0.12,
          }}
        />
      ))}
    </span>
  );
}

// Ordered Bayer 4x4 matrix — the classic dithering threshold pattern. Cells
// light in this order, so the fill shimmers like a dissolving halftone.
const BAYER_4 = [
  0, 8, 2, 10, 12, 4, 14, 6, 3, 11, 1, 9, 15, 7, 13, 5,
];