feat: add workspace companion console MVP

This commit is contained in:
2026-06-26 17:01:30 +09:00
parent f39036032b
commit f3ad9c96b3
9 changed files with 1309 additions and 1 deletions
@@ -0,0 +1,281 @@
<script lang="ts">
import WorkspaceSidebar from '$lib/workspace-sidebar/WorkspaceSidebar.svelte';
import type {
CompanionMessageResponse,
CompanionState,
CompanionStatusResponse,
CompanionTranscriptItem,
CompanionTranscriptProjection,
Diagnostic,
WorkspaceResponse
} from '$lib/workspace-sidebar/types';
let workspace = $state<WorkspaceResponse | null>(null);
let workspaceError = $state<string | null>(null);
let status = $state<CompanionStatusResponse | null>(null);
let transcript = $state<CompanionTranscriptProjection | null>(null);
let draft = $state('');
let operationState = $state<CompanionState>('ready');
let error = $state<string | null>(null);
let timeoutNotice = $state<string | null>(null);
let requestId = 0;
const currentPath = '/console';
const messages = $derived(transcript?.items ?? []);
const diagnostics = $derived(mergeDiagnostics(status?.diagnostics ?? [], transcript?.diagnostics ?? []));
const sending = $derived(operationState === 'busy');
const canSend = $derived(draft.trim().length > 0 && !sending);
async function getJson<T>(path: string): Promise<T> {
const response = await fetch(path);
if (!response.ok) {
throw new Error(`GET ${path} failed: ${response.status}`);
}
return response.json() as Promise<T>;
}
async function postJson<T>(path: string, body: unknown, timeoutMs = 45_000): Promise<T> {
const controller = new AbortController();
const timeout = window.setTimeout(() => controller.abort(), timeoutMs);
try {
const response = await fetch(path, {
method: 'POST',
headers: { 'content-type': 'application/json' },
body: JSON.stringify(body),
signal: controller.signal
});
if (!response.ok) {
let detail = '';
try {
detail = await response.text();
} catch {
detail = '';
}
throw new Error(`POST ${path} failed: ${response.status}${detail ? ` ${detail}` : ''}`);
}
return response.json() as Promise<T>;
} catch (requestError) {
if (requestError instanceof DOMException && requestError.name === 'AbortError') {
operationState = 'timeout';
timeoutNotice = 'Workspace server request timed out before a Companion response arrived.';
}
throw requestError;
} finally {
window.clearTimeout(timeout);
}
}
async function loadWorkspace() {
workspaceError = null;
try {
workspace = await getJson<WorkspaceResponse>('/api/workspace');
} catch (loadError) {
workspaceError = loadError instanceof Error ? loadError.message : String(loadError);
workspace = null;
}
}
async function loadCompanion() {
error = null;
timeoutNotice = null;
try {
const [nextStatus, nextTranscript] = await Promise.all([
getJson<CompanionStatusResponse>('/api/companion/status'),
getJson<CompanionTranscriptProjection>('/api/companion/transcript?limit=200')
]);
status = nextStatus;
transcript = nextTranscript;
operationState = nextStatus.state === 'error' ? 'error' : 'ready';
} catch (loadError) {
error = loadError instanceof Error ? loadError.message : String(loadError);
operationState = 'error';
}
}
async function sendMessage(event: SubmitEvent) {
event.preventDefault();
const content = draft.trim();
if (!content || sending) {
return;
}
const currentRequest = ++requestId;
error = null;
timeoutNotice = null;
operationState = 'busy';
try {
const response = await postJson<CompanionMessageResponse>('/api/companion/messages', { content });
if (currentRequest !== requestId) {
return;
}
operationState = response.state;
transcript = response.transcript;
if (response.worker || status) {
status = {
state: response.state === 'accepted' ? 'ready' : response.state,
worker: response.worker ?? status?.worker ?? null,
transport: status?.transport ?? {
kind: 'providerless_backend_internal',
completion: 'synchronous_request_response',
limitation: 'Companion transport metadata was not available during this response.'
},
diagnostics: response.diagnostics
};
}
if (response.state === 'accepted') {
draft = '';
operationState = 'ready';
} else if (response.state === 'busy') {
error = 'Companion is busy with another message.';
} else if (response.state === 'rejected') {
error = diagnosticsToText(response.diagnostics) || 'Companion rejected the message.';
} else if (response.state === 'error') {
error = diagnosticsToText(response.diagnostics) || 'Companion returned an error.';
}
} catch (sendError) {
if (currentRequest !== requestId) {
return;
}
if (operationState !== 'timeout') {
operationState = 'error';
}
error = sendError instanceof Error ? sendError.message : String(sendError);
}
}
async function cancelMessage() {
++requestId;
operationState = 'cancelled';
try {
const response = await postJson<CompanionMessageResponse>('/api/companion/cancel', { reason: 'browser_cancel' }, 10_000);
transcript = response.transcript;
status = status
? { ...status, state: response.state, diagnostics: response.diagnostics }
: status;
} catch (cancelError) {
error = cancelError instanceof Error ? cancelError.message : String(cancelError);
operationState = 'error';
}
}
function mergeDiagnostics(...groups: Diagnostic[][]): Diagnostic[] {
return groups.flat();
}
function diagnosticsToText(items: Diagnostic[]): string {
return items.map((item) => `${item.severity}: ${item.message}`).join('\n');
}
function itemClass(item: CompanionTranscriptItem): string {
if (item.role === 'assistant') {
return 'assistant';
}
if (item.role === 'user') {
return 'user';
}
return 'system';
}
$effect(() => {
void loadWorkspace();
void loadCompanion();
});
</script>
<svelte:head>
<title>Companion Console · Yoi Workspace</title>
<meta name="description" content="Workspace Companion Web Console MVP" />
</svelte:head>
<div class="workspace-layout">
<WorkspaceSidebar {workspace} {workspaceError} {currentPath} />
<main class="shell console-shell">
<section class="console-header card">
<div>
<p class="eyebrow">Backend-internal Companion</p>
<h2>Companion Console</h2>
<p class="section-note">
Browser traffic stays behind Workspace API projections. No Worker socket, session path,
runtime credential, or local session file is exposed to the frontend.
</p>
</div>
<div class="console-status" data-state={operationState}>
<span>{operationState}</span>
{#if status?.worker}
<small>{status.worker.label}</small>
{:else}
<small>worker pending</small>
{/if}
</div>
</section>
{#if status?.transport}
<section class="card console-transport" aria-label="Companion transport">
<div>
<dt>Transport</dt>
<dd>{status.transport.kind}</dd>
</div>
<div>
<dt>Completion</dt>
<dd>{status.transport.completion}</dd>
</div>
<p>{status.transport.limitation}</p>
</section>
{/if}
{#if error || timeoutNotice || diagnostics.length > 0}
<section class="card console-diagnostics" aria-label="Companion diagnostics">
{#if timeoutNotice}
<p class="diagnostic warning">{timeoutNotice}</p>
{/if}
{#if error}
<p class="diagnostic error">{error}</p>
{/if}
{#each diagnostics as diagnostic}
<p class={`diagnostic ${diagnostic.severity}`}>{diagnostic.code}: {diagnostic.message}</p>
{/each}
</section>
{/if}
<section class="card transcript-card" aria-label="Companion transcript">
<div class="runtime-heading">
<h3>Transcript</h3>
<span>{transcript?.total_items ?? 0} items</span>
</div>
{#if messages.length === 0}
<p class="empty-state">No Companion messages yet. Send a message to exercise the backend boundary.</p>
{:else}
<ol class="transcript-list">
{#each messages as message (message.sequence)}
<li class={`transcript-item ${itemClass(message)}`}>
<div class="message-meta">
<strong>{message.role}</strong>
<span>{message.status}</span>
<time datetime={message.created_at}>{message.created_at}</time>
</div>
<p>{message.content}</p>
</li>
{/each}
</ol>
{/if}
</section>
<form class="card composer-card" onsubmit={sendMessage}>
<label for="companion-message">Message Companion</label>
<textarea
id="companion-message"
bind:value={draft}
rows="4"
maxlength="8000"
placeholder="Ask or note something for the backend Companion boundary…"
disabled={sending}
></textarea>
<div class="composer-actions">
<span>{draft.trim().length}/8000</span>
<button type="button" class="secondary" onclick={loadCompanion} disabled={sending}>Refresh</button>
<button type="button" class="secondary" onclick={cancelMessage} disabled={!sending}>Cancel</button>
<button type="submit" disabled={!canSend}>Send</button>
</div>
</form>
</main>
</div>