Files
learnharness/components/home.tsx
T
Amos 0baa00e418 UI iteration 2: toggleable sidebar, floating composer blob, pending-question morph
Sidebar (replaces the modal drawer):
- Inline, toggleable, no backdrop/focus theft — can stay open while working
- Open state persists across pages (provider in root layout) and reloads
  (localStorage; starts closed server-side to avoid hydration mismatch,
  stored value applied post-mount; default open on first run)
- Hamburger in page headers only when closed; close button in sidebar header

Floating composer blob (per reference screenshot):
- Floats over the transcript (absolute overlay), persists at bottom while
  scrolling, content fades behind it (gradient mask); pb-44 scroll clearance
- Concentric corner radii: blob rounded-2xl(16px) − p-1.5(6px) = send
  rounded-[10px] = 25% of the 40px button; CornerDownLeft icon per reference
- Stop moved from header into the blob (busy → square icon)
- prompt-input.tsx + 7 orphan ui files pruned (attachments/command palette
  unused); hand-rolled Composer is ~100 lines and render-tested

Pending-question morph (one text field on screen, never two):
- Quiz/ask-select pending → blob becomes the note field (send hidden, hint
  line above); card's internal note input removed; Submit consumes it
- Ask free-text pending → blob becomes the answer field; its send submits
  via the card's registered submit api (ref bridge); Enter works
- Chat owns the single text state; card clears it on submit
- canSend for answer mode mirrors the card predicate directly — reading the
  ref during render lagged one commit (found in browser testing)

Widths: one shared column (max-w-3xl + px-4) for transcript, cards, and
composer — all three measured pixel-identical (left 416, width 736).
Assistant Message max-w-full/MessageContent w-full (was max-w-[95%]/w-fit —
the 'cards are a bit shorter' bug).

User messages render plain text again — no math pipeline on learner-authored
text (currency hazard accepted for the model only, guarded by the prompt).

Tests: 58 pass (5 new composer pins; card tests updated to controlled
props). Verified live: note flow, answer flow, sidebar persistence, float,
fade, zero console errors — plus the live model spontaneously honoring the
$ currency escape contract in a continuation.
2026-08-22 04:28:13 +03:00

91 lines
2.8 KiB
TypeScript

"use client";
import { useState } from "react";
import { useRouter } from "next/navigation";
import { CornerDownLeftIcon, WaypointsIcon } from "lucide-react";
import { SidebarToggle } from "@/components/sidebar";
/**
* Home — the knowledge graph is the main view (placeholder until the graph
* pipeline lands), with the new-session blob docked below it. Sessions live
* in the toggleable sidebar.
*/
export function Home() {
const router = useRouter();
const [topic, setTopic] = useState("");
const [busy, setBusy] = useState(false);
const start = async () => {
const t = topic.trim();
if (!t || busy) return;
setBusy(true);
try {
const res = await fetch("/api/chats", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ title: t }),
});
const { id } = (await res.json()) as { id: string };
router.push(`/chat/${id}?prompt=${encodeURIComponent(t)}`);
} catch {
setBusy(false);
}
};
return (
<div className="flex h-dvh flex-col">
<header className="flex items-center gap-2 px-3 py-2">
<SidebarToggle />
</header>
{/* Graph — the main view. Placeholder until the knowledge graph lands. */}
<main className="flex flex-1 items-center justify-center px-4">
<div className="flex flex-col items-center gap-3 text-center text-muted-foreground">
<WaypointsIcon className="size-10 opacity-40" strokeWidth={1.25} />
<div className="text-lg font-medium text-foreground">Knowledge graph</div>
<p className="max-w-sm text-sm">
Every session you complete will map what you know — and where the edge of your
understanding is — right here.
</p>
</div>
</main>
{/* New session — same floating blob as the chat composer. */}
<div className="pb-4">
<div className="mx-auto w-full max-w-3xl px-4">
<form
className="flex items-end gap-1.5 rounded-2xl border bg-card p-1.5 shadow-lg"
onSubmit={(e) => {
e.preventDefault();
void start();
}}
>
<textarea
value={topic}
onChange={(e) => setTopic(e.target.value)}
onKeyDown={(e) => {
if (e.key === "Enter" && !e.shiftKey) {
e.preventDefault();
void start();
}
}}
placeholder="What do you want to learn?"
autoFocus
rows={1}
className="field-sizing-content max-h-48 min-h-10 flex-1 resize-none bg-transparent px-2.5 py-2 text-sm outline-none placeholder:text-muted-foreground"
/>
<button
type="submit"
aria-label="Start session"
disabled={!topic.trim() || busy}
className="flex size-10 shrink-0 items-center justify-center rounded-[10px] bg-primary text-primary-foreground transition-colors hover:opacity-90 disabled:opacity-40"
>
<CornerDownLeftIcon className="size-5" />
</button>
</form>
</div>
</div>
</div>
);
}