Files
stack/apps/web/src/spa/chat/session-panel.tsx
T

69 lines
2.3 KiB
TypeScript

import type { ReactElement } from 'react';
import type { SessionInfoPayload } from '@/lib/chat-contract';
import { MAX_MANIFEST_ITEMS } from './limits';
import { asString, asStringArray } from './runtime-guards';
interface SessionPanelProps {
sessionInfo: SessionInfoPayload | null;
onSetThinking: (level: string) => void;
}
const THINKING_LEVEL_UNAVAILABLE = '';
export function SessionPanel({
sessionInfo,
onSetThinking,
}: SessionPanelProps): ReactElement | null {
if (!sessionInfo) return null;
// The reducer already caps this before storing it, but the render site
// defends independently — a hostile payload must never be able to force
// this <select> to lay out an unbounded number of options.
const availableThinkingLevels = asStringArray(sessionInfo.availableThinkingLevels).slice(
0,
MAX_MANIFEST_ITEMS,
);
const hasThinkingLevels = availableThinkingLevels.length > 0;
return (
<section
aria-label="Session info"
className="flex flex-wrap items-center gap-3 border-b px-4 py-2 text-xs"
>
<span>{asString(sessionInfo.provider, 'unknown')}</span>
<span>{asString(sessionInfo.modelId, 'unknown')}</span>
<label className="flex items-center gap-2">
<span>Thinking level</span>
<select
aria-label="Thinking level"
value={
hasThinkingLevels ? asString(sessionInfo.thinkingLevel) : THINKING_LEVEL_UNAVAILABLE
}
onChange={(event) => {
// The placeholder option is not a real, settable level — a
// malformed availableThinkingLevels list must never let the
// client emit set:thinking for it.
if (!hasThinkingLevels) return;
onSetThinking(event.target.value);
}}
>
{hasThinkingLevels ? (
availableThinkingLevels.map((level) => (
<option key={level} value={level}>
{level}
</option>
))
) : (
<option value={THINKING_LEVEL_UNAVAILABLE}>Thinking level unavailable</option>
)}
</select>
</label>
{sessionInfo.routingDecision ? (
<span title={asString(sessionInfo.routingDecision.ruleName)}>
{asString(sessionInfo.routingDecision.reason)}
</span>
) : null}
</section>
);
}