Martin Dvorak
374752c59e
Mobile only (<=639px / coarse pointers); desktop keeps its behaviour. Foundation - lib/motion.ts owns the spring presets (snappy/gentle/sheet), durations, easings and variants (screens, tabs, wizard steps, list stagger). - Native-feel CSS: press feedback scales every button, card, chip, tab, row and summary to 0.96 with a spring-like cubic-bezier on transform (scoped to phones/coarse pointers), tap-highlight off, touch-action manipulation, chrome text non-selectable, reduced motion drops it. - App shell fades in once on launch; the study feed fades in on phones. Applied - Tab bar: sliding active pill (shared layoutId) + icon bounce. - Study Decks/Homework, language toggle, difficulty and size pickers: the same gliding highlight, gated so desktop keeps the old styling. - Route content enters direction-aware (deeper = from the right, back = from the left, same-depth = crossfade) via RouteTransition on the library/create/homework content columns; library tab switches crossfade; wizard steps slide forward/backward (reduced motion safe). - Library: cards fade up in a capped stagger on first load, glide with layout animations and shrink away on delete (AnimatePresence). - Study feed: correct feedback pulses, wrong shakes, the progress bar settles with a spring curve, score and XP count up on the results. - Settings sheet uses the sheet spring; the drawer now follows the finger and closes on release velocity, like the sheet. - Generation progress: the stage message fades/slides between stages; the icon keeps its gentle wobble; the feed fades in on hand-off. Skipped, on purpose: LazyMotion (the sliding highlights need layout animations = domMax, same features the current import already has); route exit animations (the App Router unmounts the outgoing page — exits are handled by in-page AnimatePresence); replacing the study feed's native scroll-snap with finger-follow drag (would fight the platform scroller); finger-follow height animation for native <details> expanders. Verified: animation suite 8/8 (reduced motion + 4x-CPU-throttled trace: no long tasks, CLS 0.0000), regression 74/74, mobile 52/52, declutter 116/116, i18n 25/25. Lint + build clean. SW freezmo-v21.
402 lines
17 KiB
TypeScript
402 lines
17 KiB
TypeScript
"use client";
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import { AnimatePresence, motion } from "framer-motion";
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import Link from "next/link";
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import { useMemo, useRef, useState, useSyncExternalStore } from "react";
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import { DeckCard } from "@/components/DeckCard";
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import { FolderBar } from "@/components/FolderBar";
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import { HomeworkCard } from "@/components/HomeworkCard";
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import { FolderIcon, UploadIcon } from "@/components/icons";
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import { SegmentedPill } from "@/components/SegmentedPill";
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import { Button, EmptyState } from "@/components/ui";
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import { folderStore, renameFolder } from "@/lib/folders";
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import { deleteHomework, homeworkStore, sortHomework } from "@/lib/homework";
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import { useI18n } from "@/lib/i18n";
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import { ALL_FOLDERS, folderSelection, useSelectedFolder } from "@/lib/nav";
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import { springGentle } from "@/lib/motion";
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import { UNORGANIZED_ID, type Deck } from "@/lib/schemas";
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import { deckStore, deleteFolder, importDeck, sortDecks, upsertDeck } from "@/lib/storage";
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import { useIsPhone } from "@/lib/use-phone";
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import { cn } from "@/lib/utils";
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/**
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* Dashboard with two separate pools: study decks (folders + card grid) and
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* saved homework (solutions and step-by-step guides). The tab bar picks one,
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* so the two never mix in a single list.
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*/
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export function LibraryScreen({ initialTab = "decks" }: { initialTab?: "decks" | "homework" }) {
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const tab = initialTab;
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const decks = useSyncExternalStore(deckStore.subscribe, deckStore.getSnapshot, deckStore.getServerSnapshot);
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const homeworkRecords = useSyncExternalStore(
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homeworkStore.subscribe,
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homeworkStore.getSnapshot,
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homeworkStore.getServerSnapshot,
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);
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const homework = useMemo(() => sortHomework(homeworkRecords), [homeworkRecords]);
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const folders = useSyncExternalStore(
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folderStore.subscribe,
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folderStore.getSnapshot,
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folderStore.getServerSnapshot,
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);
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const selected = useSelectedFolder();
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const setSelected = folderSelection.set;
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const { t, plural } = useI18n();
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const isPhone = useIsPhone();
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const [message, setMessage] = useState<{ tone: "ok" | "error"; text: string } | null>(null);
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const [editingFolder, setEditingFolder] = useState<{ id: string; name: string } | null>(null);
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const [confirmDelete, setConfirmDelete] = useState<string | null>(null);
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const importRef = useRef<HTMLInputElement>(null);
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const sorted = useMemo(() => sortDecks(decks), [decks]);
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const folderList = useMemo(
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() => [...folders].sort((a, b) => a.name.localeCompare(b.name, undefined, { sensitivity: "base" })),
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[folders],
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);
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const counts = useMemo(() => {
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const map: Record<string, number> = {};
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for (const folder of folderList) map[folder.id] = 0;
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for (const deck of decks) {
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const key = deck.folderId && map[deck.folderId] !== undefined ? deck.folderId : UNORGANIZED_ID;
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map[key] = (map[key] ?? 0) + 1;
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}
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return map;
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}, [decks, folderList]);
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const groups = useMemo(() => {
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const unorganized: { id: string; name: string; decks: Deck[]; virtual: boolean } = {
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id: UNORGANIZED_ID,
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name: t("common.unorganized"),
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decks: sorted.filter((deck) => !deck.folderId),
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virtual: true,
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};
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if (selected === UNORGANIZED_ID) return [unorganized];
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if (selected !== ALL_FOLDERS) {
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const folder = folderList.find((entry) => entry.id === selected);
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if (!folder) return [unorganized];
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return [
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{ id: folder.id, name: folder.name, decks: sorted.filter((deck) => deck.folderId === folder.id), virtual: false },
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];
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}
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const named = folderList.map((folder) => ({
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id: folder.id,
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name: folder.name,
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decks: sorted.filter((deck) => deck.folderId === folder.id),
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virtual: false,
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}));
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return [...named, unorganized];
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}, [folderList, selected, sorted, t]);
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const handleImport = async (file: File | undefined) => {
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if (!file) return;
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try {
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const text = await file.text();
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const result = importDeck(text);
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if ("error" in result) setMessage({ tone: "error", text: result.error });
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else setMessage({ tone: "ok", text: t("library.imported", { title: result.deck.title }) });
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} catch {
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setMessage({ tone: "error", text: t("library.couldNotRead") });
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}
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};
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const removeFolderEverywhere = (folderId: string) => {
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deleteFolder(folderId);
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setConfirmDelete(null);
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setSelected(ALL_FOLDERS);
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setMessage({ tone: "ok", text: t("library.folderDeleted") });
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};
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const isEmpty = sorted.length === 0 && folderList.length === 0;
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// Group headings only earn their keep once real folders exist; with none,
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// desktop shows a single quiet “All decks” label instead of “Unorganized”.
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const hasFolders = folderList.length > 0;
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return (
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<div className="relative">
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{/* page header ---------------------------------------------------- */}
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<section className="mb-6 space-y-5">
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<div>
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<h1 className="text-[24px] font-semibold leading-tight tracking-[-0.02em] text-[var(--text)] sm:text-[26px]">
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{t("library.title")}
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</h1>
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<p className="mt-1.5 text-[13.5px] text-[var(--text-subtle)]">
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{t("library.subtitle")}
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</p>
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</div>
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{/* Desktop keeps Import above the tabs; phones get a small icon
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button in the tab row instead. */}
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<div className="hidden flex-wrap items-center gap-2 sm:flex">
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<Button
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variant="secondary"
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size="md"
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className="touch-target"
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onClick={() => importRef.current?.click()}
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>
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<UploadIcon className="size-4" />
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{t("library.import")}
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</Button>
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</div>
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<input
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ref={importRef}
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type="file"
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accept="application/json,.json"
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className="sr-only"
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onChange={(event) => {
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void handleImport(event.target.files?.[0]);
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event.target.value = "";
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}}
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/>
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{/* Two pools, never mixed: study decks and saved homework. */}
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<div className="flex items-center gap-2">
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<div className="segmented min-w-0 flex-1 sm:max-w-sm">
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<Link
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href="/"
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aria-current={tab === "decks" ? "page" : undefined}
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className={cn("relative", isPhone && "seg-slide")}
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>
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{isPhone && tab === "decks" ? <SegmentedPill layoutId="library-tabs" /> : null}
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<span className="seg-label relative z-10">{t("tabDecks")}</span>
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</Link>
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<Link
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href="/?tab=homework"
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aria-current={tab === "homework" ? "page" : undefined}
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className={cn("relative", isPhone && "seg-slide")}
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>
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{isPhone && tab === "homework" ? <SegmentedPill layoutId="library-tabs" /> : null}
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<span className="seg-label relative z-10">{t("tabHomework")}</span>
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</Link>
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</div>
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<button
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type="button"
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onClick={() => importRef.current?.click()}
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aria-label={t("library.importAria")}
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title={t("library.import")}
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className="touch-target grid size-11 shrink-0 place-items-center rounded-2xl border border-[var(--glass-border)] bg-[var(--surface-strong)] text-[var(--text-muted)] transition hover:bg-[var(--hover)] hover:text-[var(--text)] sm:hidden"
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>
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<UploadIcon className="size-4" />
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</button>
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</div>
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{/* Mobile folder switcher; the sidebar covers desktop. Hidden while
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there are no folders — the drawer's “New folder” is the way in. */}
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{tab === "decks" && !isEmpty && hasFolders ? (
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<FolderBar
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className="lg:hidden"
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folders={folderList}
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counts={counts}
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selected={selected}
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onSelect={(id) => {
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setSelected(id);
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setConfirmDelete(null);
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}}
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onCreated={(id) => {
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setSelected(id);
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setMessage({
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tone: "ok",
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text: t("library.folderCreated"),
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});
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}}
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/>
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) : null}
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{tab === "decks" && message ? (
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<p
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role="status"
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className={cn(
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"flex items-center gap-2 rounded-xl border border-[var(--hairline)] bg-[var(--surface)] px-3.5 py-2.5 text-[13px] font-medium",
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message.tone === "ok" ? "text-emerald-700 dark:text-emerald-300" : "text-rose-700 dark:text-rose-300",
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)}
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>
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{message.text}
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</p>
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) : null}
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</section>
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{/* Phones: switching pools crossfades the content. */}
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<AnimatePresence mode="wait" initial={false}>
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<motion.div
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key={isPhone ? tab : "static"}
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initial={isPhone ? { opacity: 0, y: 8 } : false}
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animate={isPhone ? { opacity: 1, y: 0 } : undefined}
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exit={isPhone ? { opacity: 0, y: -6, transition: { duration: 0.16 } } : undefined}
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transition={springGentle}
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>
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{/* decks: folders + card grid, or a decks-only empty state --------- */}
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{tab === "decks" && isEmpty ? (
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<EmptyState
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title={t("library.noDecks")}
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action={
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<Link href="/create?mode=deck" className="btn-primary touch-target h-11 px-5 text-sm">
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{t("emptyStateCreateDeck")}
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</Link>
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}
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>
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{t("library.emptyBody")}
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</EmptyState>
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) : null}
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{/* deck grid (the decks tab, once there is something to show) ------- */}
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{tab === "decks" && !isEmpty ? (
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<div className="space-y-8">
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{groups.map((group) => {
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const isEditing = editingFolder?.id === group.id;
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return (
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<section key={group.id} aria-label={group.name}>
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{/* group header -------------------------------------- */}
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<div className={cn("mb-4 flex items-center gap-2", !hasFolders && "hidden")}>
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<FolderIcon className="size-4 shrink-0 text-[var(--text-subtle)]" />
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{isEditing && editingFolder ? (
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<span className="flex flex-1 items-center gap-2">
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<input
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autoFocus
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value={editingFolder.name}
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onChange={(event) => setEditingFolder({ ...editingFolder, name: event.target.value })}
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onKeyDown={(event) => {
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event.stopPropagation();
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if (event.key === "Enter") {
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const result = renameFolder(editingFolder.id, editingFolder.name);
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if ("error" in result) setMessage({ tone: "error", text: result.error });
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else setEditingFolder(null);
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}
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if (event.key === "Escape") setEditingFolder(null);
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}}
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aria-label={t("library.renameFolderAria")}
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maxLength={60}
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className="min-w-32 max-w-xs flex-1 rounded-lg border border-[var(--hairline)] bg-[var(--surface-strong)] px-2.5 py-1.5 text-[15px] font-semibold text-[var(--text)] outline-none focus:border-accent-400"
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/>
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<Button
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size="sm"
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onClick={() => {
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const result = renameFolder(editingFolder.id, editingFolder.name);
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if ("error" in result) setMessage({ tone: "error", text: result.error });
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else setEditingFolder(null);
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}}
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>
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{t("common.save")}
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</Button>
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</span>
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) : (
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<button
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type="button"
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onClick={() => setSelected(group.virtual ? UNORGANIZED_ID : group.id)}
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className="truncate text-[15px] font-semibold tracking-[-0.01em] text-[var(--text)]"
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>
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{group.name}
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<span className="ml-2 text-[13px] font-normal tabular-nums text-[var(--text-subtle)]">
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{group.decks.length}
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</span>
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</button>
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)}
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{!group.virtual && !isEditing ? (
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<div className="flex items-center gap-0.5">
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<button
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type="button"
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onClick={() => setEditingFolder({ id: group.id, name: group.name })}
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className="rounded-lg px-2 py-1 text-[12.5px] font-medium text-[var(--text-subtle)] transition hover:bg-[var(--hover)] hover:text-[var(--text)]"
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>
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{t("common.rename")}
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</button>
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{confirmDelete === group.id ? (
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<>
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<Button size="sm" variant="danger" onClick={() => removeFolderEverywhere(group.id)}>
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{t("common.delete")}
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</Button>
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<Button size="sm" variant="ghost" onClick={() => setConfirmDelete(null)}>
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{t("common.cancel")}
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</Button>
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</>
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) : (
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<button
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type="button"
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onClick={() => setConfirmDelete(group.id)}
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className="rounded-lg px-2 py-1 text-[12.5px] font-medium text-[var(--text-subtle)] transition hover:bg-[var(--hover)] hover:text-rose-600 dark:hover:text-rose-300"
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>
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{t("common.delete")}
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</button>
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)}
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</div>
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) : null}
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</div>
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{/* One quiet label replaces the redundant single-group heading. */}
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{!hasFolders ? (
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<p className="mb-4 hidden text-[12px] font-medium text-[var(--text-subtle)] lg:block">
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{t("common.allDecks")}
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</p>
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) : null}
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{confirmDelete === group.id ? (
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<p className="mb-3 text-[12.5px] text-[var(--text-muted)]">
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{plural(group.decks.length, "library.deleteWarning")}
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</p>
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) : null}
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{group.decks.length === 0 ? (
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<div className="rounded-2xl border border-dashed border-[var(--hairline)] px-5 py-8 text-center text-[13px] text-[var(--text-subtle)]">
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{group.virtual ? t("library.nothingUnfiled") : t("library.emptyFolder")}
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</div>
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) : (
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<ul className="grid list-none grid-cols-[repeat(auto-fill,minmax(280px,1fr))] gap-4 lg:grid-cols-[repeat(auto-fill,minmax(320px,1fr))]">
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<AnimatePresence initial={false}>
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{group.decks.map((deck, index) => (
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<DeckCard
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key={deck.id}
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deck={deck}
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index={index}
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onMove={(folderId) => {
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upsertDeck({ ...deck, folderId });
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setMessage({
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tone: "ok",
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text: folderId ? t("library.deckMoved") : t("library.deckMovedUnorganized"),
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});
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}}
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/>
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))}
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</AnimatePresence>
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</ul>
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)}
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</section>
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);
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})}
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</div>
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) : null}
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{/* homework: saved solutions and guides, or a homework-only empty state */}
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{tab === "homework" && homework.length === 0 ? (
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<EmptyState
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title={t("homework.emptyTitle")}
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action={
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<Link href="/homework?mode=homework" className="btn-primary touch-target h-11 px-5 text-sm">
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{t("emptyStateHomework")}
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</Link>
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}
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>
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{t("homework.emptyBody")}
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</EmptyState>
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) : null}
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{tab === "homework" && homework.length > 0 ? (
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<ul className="grid list-none grid-cols-[repeat(auto-fill,minmax(280px,1fr))] gap-4 lg:grid-cols-[repeat(auto-fill,minmax(320px,1fr))]">
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<AnimatePresence initial={false}>
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{homework.map((record, index) => (
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<HomeworkCard key={record.id} record={record} onDelete={deleteHomework} index={index} />
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))}
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</AnimatePresence>
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</ul>
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) : null}
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</motion.div>
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</AnimatePresence>
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</div>
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);
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}
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