freezmo/components/UploadScreen.tsx
Martin Dvorak 9e4ecd3ee0 Deck chrome: neutral surfaces, borders and text (no navy leftovers)
- The study feed's progress header and bottom pager no longer use the old
  navy glass: new .study-chrome class uses the neutral surface token
  (same gray as the cards, #2f2f2f in dark), the neutral border
  (8% white in dark, #e5e5e5 in light) and a neutral shadow.
- Close tile, streak pill and XP pill now use --surface-sunken /
  --text-muted, matching the app's other buttons and chips; the close
  glyph is the shared XIcon.
- Bottom pager: counter in --text, arrows in --text-muted.
- .glass (mobile header) no longer has the hardcoded #101720 navy; it is
  now color-mix of the surface token. Removed the unused --color-night-*
  tokens and the last night- usage (create screen sticky bar).
- Hidden the 'Swipe up' hint on desktop, where it collided with the
  bottom pager.

New deck-chrome suite: 15/15 (computed surfaces/borders/text in both
themes, no navy); pwa 16/16, final-ux 12/12, security 8/8, contrast 20/20.
2026-10-07 09:06:18 +00:00

802 lines
34 KiB
TypeScript

"use client";
import { motion } from "framer-motion";
import { useRouter } from "next/navigation";
import { useCallback, useEffect, useMemo, useRef, useState, useSyncExternalStore } from "react";
import { ApiError, generateDeck, type GenerateProgress } from "@/lib/client-api";
import {
DOCUMENT_ACCEPT_ATTR,
KIND_LABELS,
describeDocumentError,
documentKindOf,
documentsToText,
extractDocument,
isDocumentFile,
type DocumentKind,
type ExtractedDocument,
} from "@/lib/documents";
import {
ACCEPTED_TYPES,
MAX_IMAGES,
describeFileError,
formatBytes,
imageFilesFromDataTransfer,
isImageFile,
prepareImage,
type PreparedImage,
} from "@/lib/image";
import { createFolder, folderStore } from "@/lib/folders";
import { UNORGANIZED_ID, type Difficulty } from "@/lib/schemas";
import { upsertDeck } from "@/lib/storage";
import { openSettings } from "@/lib/ui-events";
import { cn, uid } from "@/lib/utils";
import { CameraIcon, FolderIcon, IceCubeIcon, PlusIcon, SnowflakeIcon, SunIcon } from "@/components/icons";
import { Button, ProgressBar } from "@/components/ui";
type Phase = "idle" | "preparing" | "loading" | "error";
/** A document the user added, with its client-side extraction state. */
type DocItem = {
id: string;
name: string;
kind: DocumentKind;
status: "extracting" | "ready" | "error";
progress?: string;
extracted?: ExtractedDocument;
error?: string;
};
const MAX_DOCUMENTS = 6;
/** Photos + rendered PDF pages + images embedded in documents. */
const MAX_IMAGES_TO_SEND = 12;
/** Cap for the merged text sent to the API. */
const MAX_TEXT_TO_SEND = 100_000;
function describeExtraction(document: ExtractedDocument): string {
const parts = [
`${document.words.toLocaleString()} word${document.words === 1 ? "" : "s"}`,
document.pages ? `${document.pages} page${document.pages === 1 ? "" : "s"}` : "",
document.images.length
? `${document.images.length} page image${document.images.length === 1 ? "" : "s"}`
: "",
document.truncated ? "truncated" : "",
];
return parts.filter(Boolean).join(" · ");
}
const DIFFICULTIES: Array<{ value: Difficulty; label: string; icon: React.ReactNode; blurb: string }> = [
{
value: "easy",
label: "Easy",
icon: <SunIcon className="size-5" />,
blurb: "Recall & recognition",
},
{ value: "medium", label: "Medium", icon: <SnowflakeIcon className="size-5" />, blurb: "Understanding & application" },
{ value: "hard", label: "Hard", icon: <IceCubeIcon className="size-5" />, blurb: "Analysis & tricky edges" },
];
const COUNT_OPTIONS = [8, 10, 12, 15];
const GENERATION_TIPS = [
"Tip: swipe up and down through your deck like a feed.",
"Tip: matching questions only give full XP for a perfect match.",
"Tip: your decks are saved in this browser — no account needed.",
"Tip: export a deck as JSON to share it with a friend.",
];
export function UploadScreen() {
const router = useRouter();
const [images, setImages] = useState<PreparedImage[]>([]);
const [documents, setDocuments] = useState<DocItem[]>([]);
const [text, setText] = useState("");
const [focus, setFocus] = useState("");
const [difficulty, setDifficulty] = useState<Difficulty>("medium");
const [folderId, setFolderId] = useState<string>(UNORGANIZED_ID);
const [creatingFolder, setCreatingFolder] = useState(false);
const [folderDraft, setFolderDraft] = useState("");
const [count, setCount] = useState(10);
const [phase, setPhase] = useState<Phase>("idle");
const [error, setError] = useState<{ message: string; kind?: string } | null>(null);
const [fileError, setFileError] = useState<string | null>(null);
const [dragging, setDragging] = useState(false);
const [progress, setProgress] = useState<GenerateProgress>({ stage: "vision", message: "Warming up…" });
const folders = useSyncExternalStore(
folderStore.subscribe,
folderStore.getSnapshot,
folderStore.getServerSnapshot,
);
const sortedFolders = useMemo(
() => [...folders].sort((a, b) => a.name.localeCompare(b.name, undefined, { sensitivity: "base" })),
[folders],
);
const targetFolder = folderId === UNORGANIZED_ID ? undefined : folderId;
const fileInputRef = useRef<HTMLInputElement>(null);
const cameraInputRef = useRef<HTMLInputElement>(null);
const abortRef = useRef<AbortController | null>(null);
/**
* Mirrors of the current lists. React defers state updaters, so reading the
* count from inside `setState` would silently skip work — always read these.
*/
const imagesRef = useRef<PreparedImage[]>([]);
const documentsRef = useRef<DocItem[]>([]);
useEffect(() => {
imagesRef.current = images;
}, [images]);
useEffect(() => {
documentsRef.current = documents;
}, [documents]);
const addFiles = useCallback(async (files: File[]) => {
if (files.length === 0) return;
setFileError(null);
setPhase("preparing");
const problems: string[] = [];
const imageFiles: File[] = [];
const documentFiles: File[] = [];
for (const file of files) {
if (isImageFile(file)) {
const problem = describeFileError(file);
if (problem) problems.push(problem);
else imageFiles.push(file);
} else if (isDocumentFile(file)) {
const problem = describeDocumentError(file);
if (problem) problems.push(problem);
else documentFiles.push(file);
} else {
problems.push(
`"${file.name}" is not a supported format. Add photos or a PDF, DOCX, PPTX, ODT/ODP, TXT or MD file.`,
);
}
}
const documentRoom = Math.max(0, MAX_DOCUMENTS - documentsRef.current.length);
const acceptedDocuments = documentFiles.slice(0, documentRoom);
if (documentFiles.length > documentRoom) problems.push(`Up to ${MAX_DOCUMENTS} documents per deck.`);
// Documents are read asynchronously (pdf.js can take a while for scans).
if (acceptedDocuments.length > 0) {
for (const file of acceptedDocuments) {
const kind = documentKindOf(file);
if (!kind) continue;
const item: DocItem = { id: uid("doc"), name: file.name, kind, status: "extracting" };
documentsRef.current = [...documentsRef.current, item];
setDocuments((current) => (current.some((entry) => entry.id === item.id) ? current : [...current, item]));
const update = (patch: Partial<DocItem>) =>
setDocuments((current) =>
current.map((entry) => (entry.id === item.id ? { ...entry, ...patch } : entry)),
);
try {
const extracted = await extractDocument(file, (progress) => update({ progress: progress.message }));
update({ status: "ready", extracted, progress: undefined });
} catch (error) {
update({
status: "error",
error: error instanceof Error ? error.message : "Could not read this file.",
});
}
}
}
const photoRoom = Math.max(0, MAX_IMAGES - imagesRef.current.length);
const acceptedImages = imageFiles.slice(0, photoRoom);
if (imageFiles.length > photoRoom) problems.push(`Up to ${MAX_IMAGES} photos per deck.`);
const prepared: PreparedImage[] = [];
for (const file of acceptedImages) {
try {
prepared.push(await prepareImage(file));
} catch {
problems.push(`Could not read "${file.name}".`);
}
}
if (prepared.length > 0) {
imagesRef.current = [...imagesRef.current, ...prepared];
setImages((current) => [...current, ...prepared]);
}
if (problems.length) setFileError(problems.slice(0, 3).join(" "));
setPhase("idle");
}, []);
// Clipboard paste (Ctrl/⌘ + V) of screenshots or copied photos.
useEffect(() => {
const onPaste = (event: ClipboardEvent) => {
if (phase === "loading") return;
const target = event.target as HTMLElement | null;
const isTextField = target && /^(INPUT|TEXTAREA)$/.test(target.tagName);
const files = imageFilesFromDataTransfer(event.clipboardData);
if (files.length > 0) {
event.preventDefault();
void addFiles(files);
return;
}
if (!isTextField) {
const pasted = event.clipboardData?.getData("text/plain")?.trim();
if (pasted && pasted.length > 40) {
event.preventDefault();
setText((current) => (current ? `${current}\n${pasted}` : pasted));
}
}
};
window.addEventListener("paste", onPaste);
return () => window.removeEventListener("paste", onPaste);
}, [addFiles, phase]);
const removeImage = (id: string) => {
imagesRef.current = imagesRef.current.filter((image) => image.id !== id);
setImages((current) => current.filter((image) => image.id !== id));
};
const removeDocument = (id: string) => {
documentsRef.current = documentsRef.current.filter((entry) => entry.id !== id);
setDocuments((current) => current.filter((entry) => entry.id !== id));
};
const readyDocuments = documents.filter((entry) => entry.status === "ready" && entry.extracted);
const documentsBusy = documents.some((entry) => entry.status === "extracting");
const documentImages = readyDocuments.flatMap((entry) => entry.extracted!.images);
const documentText = documentsToText(readyDocuments.map((entry) => entry.extracted!));
const totalBytes = images.reduce((sum, image) => sum + image.bytes, 0);
const hasContent =
images.length > 0 || documentImages.length > 0 || text.trim().length > 0 || documentText.trim().length > 0;
const canGenerate = hasContent && !documentsBusy && phase !== "preparing";
const imagesToSend = [...images.map((image) => image.dataUrl), ...documentImages.map((image) => image.dataUrl)].slice(
0,
MAX_IMAGES_TO_SEND,
);
const imagesSkipped =
images.length + documentImages.length - imagesToSend.length;
const generate = async () => {
if (!canGenerate) return;
setError(null);
setPhase("loading");
setProgress({
stage: imagesToSend.length ? "vision" : "generation",
message: imagesToSend.length ? "Reading your notes…" : "Finding the key ideas…",
});
const controller = new AbortController();
abortRef.current = controller;
const mergedText = [text.trim(), documentText.trim()].filter(Boolean).join("\n\n").slice(0, MAX_TEXT_TO_SEND);
try {
const { deck } = await generateDeck(
{
images: imagesToSend.length ? imagesToSend : undefined,
text: mergedText || undefined,
focus: focus.trim() || undefined,
difficulty,
count,
},
{ onProgress: setProgress, signal: controller.signal },
);
const now = Date.now();
const stored = {
...deck,
id: uid("deck"),
folderId: targetFolder,
createdAt: now,
updatedAt: now,
attempts: 0,
};
upsertDeck(stored);
router.push(`/deck/${stored.id}`);
} catch (generateError) {
setError({
message:
generateError instanceof ApiError
? generateError.message
: "Something went wrong while generating your deck. Check your Ollama settings and try again.",
kind: generateError instanceof ApiError ? generateError.kind : undefined,
});
setPhase("error");
} finally {
abortRef.current = null;
}
};
if (phase === "loading") {
return <LoadingState progress={progress} onCancel={() => abortRef.current?.abort()} />;
}
return (
<div className="relative">
<div className="relative space-y-5">
<section className="space-y-2">
<h1 className="flex flex-wrap items-center gap-x-3 gap-y-1 text-[28px] font-semibold leading-tight tracking-[-0.02em] text-[var(--text)] text-balance sm:text-[32px]">
<SnowflakeIcon className="size-8 shrink-0 text-frost-500 dark:text-frost-200" />
<span>Turn your notes into a study feed</span>
</h1>
<p className="max-w-xl text-[15px] text-frost-600 dark:text-frost-300">
Snap or drop photos of your notes. Freezmo reads them with your own Ollama vision model
and builds a swipeable deck of mini study games.
</p>
</section>
{error ? (
<div
role="alert"
className="animate-rise rounded-3xl border-2 border-rose-300 bg-rose-50/95 p-4 text-sm text-rose-900 dark:border-rose-400/40 dark:bg-rose-400/10 dark:text-rose-100"
>
<p className="font-bold">
{error.kind === "needs_key"
? "API key required"
: error.kind === "rate_limited"
? "Slow down a moment"
: error.kind === "auth"
? "Ollama rejected your key"
: "Generation failed"}
</p>
<p className="mt-1">{error.message}</p>
<div className="mt-3 flex flex-wrap gap-2">
{error.kind === "needs_key" || error.kind === "auth" ? (
<Button size="sm" onClick={openSettings}>
Open settings
</Button>
) : null}
<Button size="sm" variant={error.kind === "needs_key" || error.kind === "auth" ? "secondary" : "primary"} onClick={() => void generate()}>
Retry
</Button>
</div>
</div>
) : null}
{/* ---------------------------------------------------------- */}
<section
aria-label="Add photos of your notes"
onDragOver={(event) => {
event.preventDefault();
setDragging(true);
}}
onDragLeave={() => setDragging(false)}
onDrop={(event) => {
event.preventDefault();
setDragging(false);
void addFiles(imageFilesFromDataTransfer(event.dataTransfer));
}}
className={cn(
"card relative overflow-hidden p-4 transition-all sm:p-5",
dragging && "border-frost-400 bg-frost-50 ring-4 ring-frost-200 dark:bg-frost-500/10 dark:ring-frost-500/30",
)}
>
<div className="flex flex-wrap items-center justify-between gap-3">
<div>
<h2 className="text-[15px] font-semibold tracking-[-0.01em] text-[var(--text)]">1. Add your notes</h2>
<p className="text-[12.5px] text-[var(--text-subtle)]">
Drag &amp; drop, paste a screenshot (Ctrl/⌘+V), or use the camera. Photos, PDF, Word,
PowerPoint, OpenDocument and text files. Up to {MAX_IMAGES} photos and {MAX_DOCUMENTS}{" "}
documents.
</p>
</div>
<div className="flex flex-wrap gap-2">
<Button variant="secondary" size="sm" onClick={() => fileInputRef.current?.click()}>
<FolderIcon className="size-4" /> Choose files
</Button>
<Button variant="secondary" size="sm" onClick={() => cameraInputRef.current?.click()}>
<CameraIcon className="size-4" /> Camera
</Button>
</div>
</div>
<input
ref={fileInputRef}
type="file"
accept={`${ACCEPTED_TYPES.join(",")},${DOCUMENT_ACCEPT_ATTR}`}
multiple
className="sr-only"
onChange={(event) => {
void addFiles(Array.from(event.target.files ?? []));
event.target.value = "";
}}
/>
<input
ref={cameraInputRef}
type="file"
accept="image/*"
capture="environment"
className="sr-only"
onChange={(event) => {
void addFiles(Array.from(event.target.files ?? []));
event.target.value = "";
}}
/>
{images.length === 0 ? (
<button
type="button"
onClick={() => fileInputRef.current?.click()}
className="mt-4 flex w-full flex-col items-center gap-2 rounded-2xl border-2 border-dashed border-white/70 bg-white/40 px-4 py-10 text-center backdrop-blur-xl transition hover:border-accent-300 hover:bg-white/65 dark:border-white/15 dark:bg-white/[0.05] dark:hover:bg-white/[0.09]"
>
<span aria-hidden className="animate-float text-frost-500 dark:text-frost-200">
<SnowflakeIcon className="size-12" />
</span>
<span className="text-[14px] font-medium text-[var(--text)]">
Drop your notes here
</span>
<span className="text-[12.5px] text-[var(--text-subtle)]">
Photos, PDF, DOCX, PPTX, ODT/ODP, TXT, MD · images resized to 1600px before sending
</span>
</button>
) : (
<ul className="mt-4 grid grid-cols-3 gap-2 sm:grid-cols-4">
{images.map((image) => (
<li key={image.id} className="group relative overflow-hidden rounded-2xl border border-frost-200 dark:border-white/15">
{/* eslint-disable-next-line @next/next/no-img-element */}
<img
src={image.dataUrl}
alt={image.name}
className="aspect-square w-full object-cover"
/>
<button
type="button"
onClick={() => removeImage(image.id)}
aria-label={`Remove ${image.name}`}
className="absolute right-1 top-1 grid size-7 place-items-center rounded-full bg-frost-950/70 text-xs font-bold text-white transition hover:bg-rose-600"
>
✕
</button>
<span className="absolute inset-x-0 bottom-0 bg-frost-950/60 px-2 py-1 text-[10px] font-semibold text-white">
{formatBytes(image.bytes)}
</span>
</li>
))}
{images.length < MAX_IMAGES ? (
<li>
<button
type="button"
onClick={() => fileInputRef.current?.click()}
className="grid aspect-square w-full place-items-center rounded-2xl border-2 border-dashed border-white/70 text-2xl text-accent-500 backdrop-blur-xl transition hover:border-accent-300 hover:bg-white/60 dark:border-white/15 dark:text-accent-200"
aria-label="Add more photos"
>
+
</button>
</li>
) : null}
</ul>
)}
{documents.length > 0 ? (
<ul className="mt-3 space-y-2">
{documents.map((entry) => (
<li
key={entry.id}
className="flex items-start gap-3 rounded-2xl border border-white/60 bg-white/50 p-3 backdrop-blur-xl dark:border-white/12 dark:bg-white/[0.06]"
>
<span className="grid size-10 shrink-0 place-items-center rounded-xl bg-frost-100 text-[10px] font-extrabold uppercase tracking-wide text-frost-700 dark:bg-white/10 dark:text-frost-100">
{KIND_LABELS[entry.kind]}
</span>
<div className="min-w-0 flex-1">
<p className="truncate text-sm font-semibold text-[var(--text)]" title={entry.name}>
{entry.name}
</p>
{entry.status === "extracting" ? (
<p className="text-xs font-medium text-frost-700 dark:text-frost-200">
{entry.progress ?? "Reading…"}
</p>
) : null}
{entry.status === "error" ? (
<p className="text-xs font-medium text-rose-600 dark:text-rose-300">{entry.error}</p>
) : null}
{entry.status === "ready" && entry.extracted ? (
<>
<p className="text-[12.5px] text-[var(--text-subtle)]">
{describeExtraction(entry.extracted)}
</p>
{entry.extracted.words === 0 && entry.extracted.images.length === 0 ? (
<p className="text-xs font-medium text-amber-700 dark:text-amber-300">
No readable text — is this a scan without a text layer?
</p>
) : null}
{entry.extracted.warnings.map((warning) => (
<p key={warning} className="text-[12.5px] text-[var(--text-subtle)]">
ⓘ {warning}
</p>
))}
</>
) : null}
</div>
<button
type="button"
onClick={() => removeDocument(entry.id)}
aria-label={`Remove ${entry.name}`}
className="grid size-7 shrink-0 place-items-center rounded-full bg-frost-950/10 text-xs font-bold text-frost-900 transition hover:bg-rose-500 hover:text-white dark:bg-white/10 dark:text-frost-50"
>
✕
</button>
</li>
))}
</ul>
) : null}
{images.length > 0 || documents.length > 0 ? (
<p className="mt-2 text-[12.5px] text-[var(--text-subtle)]">
{images.length > 0
? `${images.length} photo${images.length === 1 ? "" : "s"} · ${formatBytes(totalBytes)} after compression`
: ""}
{images.length > 0 && documents.length > 0 ? " · " : ""}
{documents.length > 0
? `${documents.length} document${documents.length === 1 ? "" : "s"}${
documentImages.length ? ` (${documentImages.length} page image${documentImages.length === 1 ? "" : "s"})` : ""
}`
: ""}
{imagesSkipped > 0
? ` · ${imagesSkipped} image${imagesSkipped === 1 ? "" : "s"} will be skipped (max ${MAX_IMAGES_TO_SEND} per deck)`
: ""}
</p>
) : null}
{phase === "preparing" ? (
<p className="mt-2 text-[12.5px] font-medium text-[var(--text-muted)]">Compressing photos…</p>
) : null}
{fileError ? (
<p role="alert" className="mt-2 text-xs font-semibold text-rose-600 dark:text-rose-300">
{fileError}
</p>
) : null}
</section>
{/* ---------------------------------------------------------- */}
<section className="card space-y-4 p-4 sm:p-5">
<div>
<h2 className="text-[15px] font-semibold tracking-[-0.01em] text-[var(--text)]">2. Optional extras</h2>
<p className="text-[12.5px] text-[var(--text-subtle)]">
Paste extra notes or give the AI a hint about what to focus on.
</p>
</div>
<div className="space-y-1.5">
<label htmlFor="notes-text" className="text-[11px] font-semibold uppercase tracking-wide text-[var(--text-subtle)]">
Pasted notes or text
</label>
<textarea
id="notes-text"
value={text}
onChange={(event) => setText(event.target.value)}
rows={4}
placeholder="Paste lecture text, a summary, or any extra facts here…"
className="w-full resize-y rounded-2xl border border-white/60 bg-white/55 px-4 py-3 text-sm text-frost-950 outline-none backdrop-blur-xl transition placeholder:text-frost-400 focus:border-accent-400 dark:border-white/12 dark:bg-white/[0.07] dark:text-frost-50"
/>
</div>
<div className="space-y-1.5">
<label htmlFor="focus" className="text-[11px] font-semibold uppercase tracking-wide text-[var(--text-subtle)]">
Topic hint (optional)
</label>
<input
id="focus"
value={focus}
onChange={(event) => setFocus(event.target.value)}
placeholder="e.g. focus on the formulas, or on dates"
className="w-full rounded-2xl border border-white/60 bg-white/55 px-4 py-3 text-sm text-frost-950 outline-none backdrop-blur-xl transition placeholder:text-frost-400 focus:border-accent-400 dark:border-white/12 dark:bg-white/[0.07] dark:text-frost-50"
/>
</div>
</section>
{/* ---------------------------------------------------------- */}
<section className="card space-y-4 p-4 sm:p-5">
<h2 className="text-[15px] font-semibold tracking-[-0.01em] text-[var(--text)]">3. Difficulty &amp; size</h2>
<div className="space-y-2">
<span className="text-[11px] font-semibold uppercase tracking-wide text-[var(--text-subtle)]">
Freeze into folder
</span>
<div className="flex flex-wrap items-center gap-2">
{[{ id: UNORGANIZED_ID, name: "Unorganized" }, ...sortedFolders].map((folder) => {
const active = folderId === folder.id;
return (
<button
key={folder.id}
type="button"
aria-pressed={active}
onClick={() => setFolderId(folder.id)}
className={cn(
"inline-flex items-center gap-1.5 rounded-full border px-3.5 py-1.5 text-[13px] font-medium transition",
active
? "border-accent-500 bg-accent-50 text-accent-800 dark:bg-accent-500/20 dark:text-accent-100"
: "border-[var(--hairline)] text-frost-600 hover:text-frost-900 dark:text-frost-300 dark:hover:text-white",
)}
>
<FolderIcon className="size-4" />
{folder.name}
</button>
);
})}
{creatingFolder ? (
<span className="inline-flex items-center gap-1">
<input
autoFocus
value={folderDraft}
onChange={(event) => setFolderDraft(event.target.value)}
onKeyDown={(event) => {
event.stopPropagation();
if (event.key === "Escape") {
setCreatingFolder(false);
setFolderDraft("");
}
if (event.key === "Enter") {
const created = createFolder(folderDraft);
if ("folder" in created) {
setFolderId(created.folder.id);
setFolderDraft("");
setCreatingFolder(false);
} else {
setFileError(created.error);
}
}
}}
aria-label="New folder name"
placeholder="e.g. History"
maxLength={60}
className="w-32 rounded-xl border border-[var(--hairline)] bg-[var(--surface-strong)] px-3 py-1.5 text-sm outline-none"
/>
<Button
size="sm"
onClick={() => {
const created = createFolder(folderDraft);
if ("folder" in created) {
setFolderId(created.folder.id);
setFolderDraft("");
setCreatingFolder(false);
} else {
setFileError(created.error);
}
}}
>
Add
</Button>
</span>
) : (
<button
type="button"
onClick={() => setCreatingFolder(true)}
className="inline-flex items-center gap-1.5 rounded-xl border border-dashed border-[var(--hairline)] px-3 py-1.5 text-sm font-semibold text-frost-500 transition-colors hover:text-accent-700 dark:text-frost-400 dark:hover:text-accent-200"
>
<PlusIcon className="size-4" /> New folder
</button>
)}
</div>
</div>
<div role="radiogroup" aria-label="Difficulty" className="grid grid-cols-3 gap-2">
{DIFFICULTIES.map((option) => {
const selected = difficulty === option.value;
return (
<button
key={option.value}
type="button"
role="radio"
aria-checked={selected}
onClick={() => setDifficulty(option.value)}
className={cn(
"flex flex-col items-center gap-1 rounded-2xl border px-2 py-3 text-center backdrop-blur-xl transition-colors",
selected
? "border-accent-400 bg-accent-50/80 shadow-lift dark:bg-accent-500/20"
: "border-white/60 bg-white/45 backdrop-blur-xl hover:bg-white/70 dark:border-white/12 dark:bg-white/[0.05]",
)}
>
<span aria-hidden className="text-frost-600 dark:text-frost-200">
{option.icon}
</span>
<span className="text-sm font-bold text-[var(--text)]">{option.label}</span>
<span className="hidden text-[11px] text-slate-500 sm:block dark:text-slate-400">{option.blurb}</span>
</button>
);
})}
</div>
<div className="flex flex-wrap items-center gap-2">
<span className="text-[11px] font-semibold uppercase tracking-wide text-[var(--text-subtle)]">
Activities
</span>
{COUNT_OPTIONS.map((option) => (
<button
key={option}
type="button"
aria-pressed={count === option}
onClick={() => setCount(option)}
className={cn(
"min-w-12 rounded-xl border-2 px-3 py-1.5 text-sm font-bold transition",
count === option
? "border-transparent bg-[var(--text)] text-white dark:bg-white dark:text-[#0d0d0d]"
: "border-[var(--hairline)] text-[var(--text-muted)] hover:bg-[var(--hover)]",
)}
>
{option}
</button>
))}
</div>
</section>
<div className="sticky bottom-[calc(env(safe-area-inset-bottom,0px)+4.6rem)] z-20 -mx-4 border-t border-[var(--hairline)] bg-white/65 px-4 py-3 backdrop-blur-2xl dark:bg-[color-mix(in_oklab,var(--surface)_70%,transparent)] sm:bottom-0 sm:mx-0 sm:rounded-[1.35rem] sm:border sm:px-5">
<div className="flex flex-wrap items-center justify-between gap-3">
<p className="text-[12.5px] text-[var(--text-subtle)]">
{documentsBusy
? "Reading your documents…"
: hasContent
? "Ready when you are — generation can take a minute."
: "Add a photo or a document (or some text) to start."}
</p>
<div className="flex flex-wrap gap-2">
<Button size="lg" onClick={() => void generate()} disabled={!canGenerate}>
<SnowflakeIcon className="size-5" /> Freeze my deck
</Button>
</div>
</div>
</div>
</div>
</div>
);
}
/* ------------------------------------------------------------------ */
/* Loading state */
/* ------------------------------------------------------------------ */
const STAGE_STEPS: Array<{ stage: GenerateProgress["stage"]; messages: string[] }> = [
{ stage: "vision", messages: ["Reading your notes…", "Transcribing handwriting…", "Spotting definitions…"] },
{ stage: "generation", messages: ["Finding the key ideas…", "Writing good questions…", "Building your activities…"] },
];
function LoadingState({ progress, onCancel }: { progress: GenerateProgress; onCancel: () => void }) {
const [tick, setTick] = useState(0);
const [tip, setTip] = useState(0);
useEffect(() => {
const timer = window.setInterval(() => setTick((value) => value + 1), 3200);
return () => window.clearInterval(timer);
}, []);
useEffect(() => {
setTip(Math.floor(Math.random() * GENERATION_TIPS.length));
}, []);
const activeIndex = progress.stage === "vision" ? 0 : 1;
const messages = STAGE_STEPS[activeIndex].messages;
const message = progress.message && tick === 0 ? progress.message : messages[tick % messages.length];
return (
<div className="relative flex min-h-[70dvh] flex-col items-center justify-center gap-6 text-center">
<motion.div
aria-hidden
animate={{ rotate: [0, 8, -8, 0], scale: [1, 1.08, 1] }}
transition={{ duration: 3.2, repeat: Infinity, ease: "easeInOut" }}
className="relative grid size-28 place-items-center rounded-[1.75rem] bg-accent-600 text-white shadow-lift"
>
<SnowflakeIcon className="size-16" />
</motion.div>
<div className="relative w-full max-w-md space-y-3">
<p className="text-xl font-extrabold text-[var(--text)]" aria-live="polite">
{message}
</p>
<ProgressBar value={activeIndex + 1} max={2} label="Generation progress" />
<ol className="space-y-1 text-left text-[14.5px] leading-relaxed text-[var(--text-muted)]">
{STAGE_STEPS.map((step, index) => (
<li key={step.stage} className="flex items-center gap-2">
<span aria-hidden>
{index < activeIndex ? "✅" : index === activeIndex ? "🌀" : "⬜"}
</span>
{step.messages[0]}
</li>
))}
</ol>
<p className="pt-2 text-[12.5px] text-[var(--text-subtle)]">{GENERATION_TIPS[tip]}</p>
<Button variant="ghost" size="sm" onClick={onCancel}>
Cancel
</Button>
</div>
</div>
);
}