Add frontend session management with localStorage persistence, deduplicate shared code

This commit is contained in:
Yiorgis Gozadinos 2026-02-12 15:14:27 +02:00
parent abfee49d13
commit 467bcff94d
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14 changed files with 2598 additions and 1827 deletions

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@ -21,6 +21,11 @@
- **AG-UI state sync**: `ask` tool now emits `StateSnapshotEvent` instead of `StateDeltaEvent`, ensuring background summarization results are reliably delivered to clients
- **TUI simplified**: Chat TUI reads directly from `ToolContext` namespace states instead of maintaining a separate `ChatSessionState` and manually syncing via AG-UI state events
- **AG-UI web app**: Uses `ToolContextCache` to maintain per-thread state across requests
- **Frontend session management**: Persistent chat sessions with localStorage, wired to backend `ToolContextCache` via CopilotKit `threadId`
- Session manager dropdown: create, switch, delete, and export sessions to markdown
- Messages, chat state, and citations restored on session switch
- Session title derived from first user message
- Inline citation blocks injected after assistant responses via `qa_history` correlation
### Removed

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@ -1,4 +1,5 @@
import type { Metadata } from "next";
import "@copilotkit/react-core/v2/styles.css";
import "./globals.css";
export const metadata: Metadata = {

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@ -1,60 +1,51 @@
"use client";
import {
CopilotKit,
useCoAgent,
useCoAgentStateRender,
useCopilotAction,
} from "@copilotkit/react-core";
import { CopilotChat } from "@copilotkit/react-ui";
import { useState } from "react";
import "@copilotkit/react-ui/styles.css";
CopilotChatMessageView,
CopilotChatView,
CopilotKitProvider,
defineToolCallRenderer,
UseAgentUpdate,
useAgent,
useCopilotKit,
} from "@copilotkit/react-core/v2";
import {
createContext,
useCallback,
useContext,
useEffect,
useMemo,
useRef,
useState,
} from "react";
import { BrainIcon, FilterIcon } from "../lib/icons";
import type { ChatSessionState } from "../lib/sessionStorage";
import {
createSession,
getActiveSessionId,
getSession,
normalizeChatState,
updateSessionMessages,
} from "../lib/sessionStorage";
import CitationBlock from "./CitationBlock";
import ContextPanel from "./ContextPanel";
import DbInfo from "./DbInfo";
import DocumentFilter from "./DocumentFilter";
import SessionManager from "./SessionManager";
// Must match AGUI_STATE_KEY from haiku.rag.agents.chat
const AGUI_STATE_KEY = "haiku.rag.chat";
interface Citation {
index: number;
document_id: string;
chunk_id: string;
document_uri: string;
document_title: string | null;
page_numbers: number[];
headings: string[] | null;
content: string;
}
interface QAResponse {
question: string;
answer: string;
confidence: number;
citations: Citation[];
}
interface SessionContext {
summary: string;
last_updated: string | null;
}
interface ChatSessionState {
session_id: string;
initial_context: string | null;
citations: Citation[];
qa_history: QAResponse[];
session_context: SessionContext | null;
document_filter: string[];
citation_registry: Record<string, number>;
}
// AG-UI state is namespaced under AGUI_STATE_KEY
interface AgentState {
[AGUI_STATE_KEY]?: ChatSessionState;
}
// biome-ignore lint/suspicious/noExplicitAny: CopilotKit message objects vary at runtime
function serializeMessages(messages: any[]): any[] {
return JSON.parse(JSON.stringify(messages));
}
function SpinnerIcon() {
return (
<svg
@ -143,31 +134,6 @@ function FileIcon() {
);
}
function BrainIcon() {
return (
<svg
width="18"
height="18"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M12 5a3 3 0 1 0-5.997.125 4 4 0 0 0-2.526 5.77 4 4 0 0 0 .556 6.588A4 4 0 1 0 12 18Z" />
<path d="M12 5a3 3 0 1 1 5.997.125 4 4 0 0 1 2.526 5.77 4 4 0 0 1-.556 6.588A4 4 0 1 1 12 18Z" />
<path d="M15 13a4.5 4.5 0 0 1-3-4 4.5 4.5 0 0 1-3 4" />
<path d="M17.599 6.5a3 3 0 0 0 .399-1.375" />
<path d="M6.003 5.125A3 3 0 0 0 6.401 6.5" />
<path d="M3.477 10.896a4 4 0 0 1 .585-.396" />
<path d="M19.938 10.5a4 4 0 0 1 .585.396" />
<path d="M6 18a4 4 0 0 1-1.967-.516" />
<path d="M19.967 17.484A4 4 0 0 1 18 18" />
</svg>
);
}
function ToolCallIndicator({
toolName,
status,
@ -246,114 +212,6 @@ function ToolCallIndicator({
return (
<div className={`tool-call-card ${isComplete ? "complete" : "loading"}`}>
<style>{`
@keyframes spin {
from { transform: rotate(0deg); }
to { transform: rotate(360deg); }
}
@keyframes fadeIn {
from { opacity: 0; transform: translateY(-4px); }
to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
0%, 100% { opacity: 1; }
50% { opacity: 0.6; }
}
.tool-call-card {
display: flex;
align-items: flex-start;
gap: 12px;
padding: 12px 14px;
margin: 8px 0;
background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
border-radius: 10px;
font-size: 13px;
color: #475569;
border: 1px solid #e2e8f0;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
animation: fadeIn 0.2s ease-out;
transition: all 0.2s ease;
}
.tool-call-card.loading {
border-color: #bfdbfe;
background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.tool-call-card.complete {
border-color: #bbf7d0;
background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}
.tool-status-icon {
display: flex;
align-items: center;
justify-content: center;
width: 28px;
height: 28px;
border-radius: 8px;
flex-shrink: 0;
}
.tool-call-card.loading .tool-status-icon {
background: #dbeafe;
color: #2563eb;
}
.tool-call-card.complete .tool-status-icon {
background: #bbf7d0;
color: #16a34a;
}
.tool-spinner {
animation: spin 1s linear infinite;
}
.tool-content {
flex: 1;
min-width: 0;
}
.tool-header {
display: flex;
align-items: center;
gap: 6px;
margin-bottom: 4px;
}
.tool-badge {
display: inline-flex;
align-items: center;
gap: 4px;
padding: 2px 8px;
background: rgba(59, 130, 246, 0.1);
color: #2563eb;
border-radius: 4px;
font-size: 11px;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.025em;
}
.tool-call-card.complete .tool-badge {
background: rgba(22, 163, 74, 0.1);
color: #16a34a;
}
.tool-status-text {
font-size: 11px;
color: #94a3b8;
}
.tool-call-card.loading .tool-status-text {
animation: pulse 1.5s ease-in-out infinite;
}
.tool-description {
color: #334155;
line-height: 1.5;
word-break: break-word;
}
.tool-query {
color: #0f172a;
font-weight: 500;
}
.tool-context {
color: #64748b;
}
.tool-context em {
color: #475569;
font-style: normal;
font-weight: 500;
}
`}</style>
<div className="tool-status-icon">
{isComplete ? <CheckIcon /> : <SpinnerIcon />}
</div>
@ -373,60 +231,164 @@ function ToolCallIndicator({
);
}
function FilterIcon() {
// Context for sharing chat state with the message view
const ChatStateContext = createContext<ChatSessionState | null>(null);
// Wildcard tool call renderer for all server-side tools
const toolCallRenderers = [
defineToolCallRenderer({
name: "*",
render: ({ name, args, result }) => (
<ToolCallIndicator
toolName={name}
status={result !== undefined ? "complete" : "loading"}
args={(args ?? {}) as Record<string, unknown>}
/>
),
}),
];
// Custom message view that injects CitationBlocks after assistant responses.
// Uses CopilotChatMessageView's children render prop to post-process the
// rendered message elements and inject citations at the right positions.
function MessageViewWithCitations({
messages,
isRunning,
}: {
// biome-ignore lint/suspicious/noExplicitAny: AG-UI Message type is a broad union
messages: any[];
isRunning: boolean;
}) {
const chatState = useContext(ChatStateContext);
const cursor = isRunning ? (
<div key="cursor" className="streaming-cursor">
<span className="dot" />
<span className="dot" />
<span className="dot" />
</div>
) : null;
return (
<svg
width="18"
height="18"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<polygon points="22 3 2 3 10 12.46 10 19 14 21 14 12.46 22 3" />
</svg>
<CopilotChatMessageView messages={messages} isRunning={isRunning}>
{({ messageElements }) => {
if (!chatState?.qa_history?.length) {
return (
<>
{messageElements}
{cursor}
</>
);
}
// CopilotChatMessageView renders one element per user/assistant/activity
// message (tool messages produce nothing). We correlate elements with
// messages to inject CitationBlocks after the right assistant responses.
//
// Tool call objects on messages only carry `id` (no `name`), so we
// can't identify which tool was called from the message alone. Instead
// we rely on the fact that qa_history only grows when the `ask` tool
// runs: after each assistant text response that followed tool calls,
// we inject any new qa_history citations.
const result: React.ReactNode[] = [];
let qaIdx = 0;
let seenToolCalls = false;
let elemIdx = 0;
for (const msg of messages) {
if (msg.role === "user") {
seenToolCalls = false;
}
if (
msg.role === "assistant" &&
Array.isArray(msg.toolCalls) &&
msg.toolCalls.length > 0
) {
seenToolCalls = true;
}
const isRendered =
msg.role === "user" ||
msg.role === "assistant" ||
msg.role === "activity";
if (!isRendered) continue;
if (elemIdx < messageElements.length) {
result.push(messageElements[elemIdx]);
elemIdx++;
}
// After an assistant text response that followed tool calls,
// inject the next qa_history entry's citations (one per turn)
if (msg.role === "assistant" && msg.content && seenToolCalls) {
if (qaIdx < chatState.qa_history.length) {
const qa = chatState.qa_history[qaIdx];
if (qa.citations?.length) {
result.push(
<CitationBlock
key={`citations-${qaIdx}`}
citations={qa.citations}
/>,
);
}
qaIdx++;
}
seenToolCalls = false;
}
}
while (elemIdx < messageElements.length) {
result.push(messageElements[elemIdx]);
elemIdx++;
}
return (
<>
{result}
{cursor}
</>
);
}}
</CopilotChatMessageView>
);
}
function ChatContentInner() {
function ChatContentInner({
sessionId,
onSessionChange,
}: {
sessionId: string;
onSessionChange: (id: string) => void;
}) {
const [contextOpen, setContextOpen] = useState(false);
const [filterOpen, setFilterOpen] = useState(false);
const { state: agentState, setState: setAgentState } = useCoAgent<AgentState>(
{
name: "chat_agent",
initialState: {
[AGUI_STATE_KEY]: {
session_id: "",
initial_context: null,
citations: [],
qa_history: [],
session_context: null,
document_filter: [],
citation_registry: {},
},
},
},
const { agent } = useAgent({
agentId: "chat_agent",
updates: [
UseAgentUpdate.OnMessagesChanged,
UseAgentUpdate.OnStateChanged,
UseAgentUpdate.OnRunStatusChanged,
],
});
const { copilotkit: ck } = useCopilotKit();
// Set threadId (CopilotChat normally does this in its connect effect)
useEffect(() => {
agent.threadId = sessionId;
}, [agent, sessionId]);
const chatState = normalizeChatState(
(agent.state as AgentState)?.[AGUI_STATE_KEY],
);
const normalizeChatState = (
state: ChatSessionState | undefined,
): ChatSessionState => ({
session_id: state?.session_id ?? "",
initial_context: state?.initial_context ?? null,
citations: state?.citations ?? [],
qa_history: state?.qa_history ?? [],
session_context: state?.session_context ?? null,
document_filter: state?.document_filter ?? [],
citation_registry: state?.citation_registry ?? {},
});
const mergeChatState = (partial: Partial<ChatSessionState>) => {
const current = normalizeChatState(agentState?.[AGUI_STATE_KEY]);
setAgentState({
...agentState,
const current = normalizeChatState(
(agent.state as AgentState)?.[AGUI_STATE_KEY],
);
agent.setState({
...agent.state,
[AGUI_STATE_KEY]: {
...current,
...partial,
@ -434,14 +396,105 @@ function ChatContentInner() {
});
};
// Extract session context, document filter, and initial context from agent state
const sessionContext = agentState?.[AGUI_STATE_KEY]?.session_context ?? null;
const documentFilter = agentState?.[AGUI_STATE_KEY]?.document_filter ?? [];
const initialContext = agentState?.[AGUI_STATE_KEY]?.initial_context ?? "";
// Restore session from localStorage when agent reference changes.
// useAgent returns a provisional agent initially, then the real agent
// after runtime connects — re-run restore each time so messages stick.
useEffect(() => {
if (agent.messages.length > 0) return;
const session = getSession(sessionId);
if (!session) return;
if (session.chatState) {
agent.setState({
[AGUI_STATE_KEY]: normalizeChatState(session.chatState),
});
}
if (session.messages.length > 0) {
// biome-ignore lint/suspicious/noExplicitAny: AG-UI Message type is a broad union
agent.setMessages(session.messages as any[]);
}
}, [agent, sessionId]);
// Persist messages and state to localStorage.
// Read chatState from agent.state at effect time (not render time) so that
// restore and persist effects in the same commit see consistent state.
// biome-ignore lint/correctness/useExhaustiveDependencies: JSON.stringify tracks content changes
useEffect(() => {
if (sessionId && agent.messages.length > 0) {
const currentChatState = normalizeChatState(
(agent.state as AgentState)?.[AGUI_STATE_KEY],
);
updateSessionMessages(
sessionId,
serializeMessages(agent.messages),
currentChatState,
);
}
}, [JSON.stringify(agent.messages), chatState, sessionId]);
// biome-ignore lint/correctness/useExhaustiveDependencies: stable identity via agent ref
const messages = useMemo(
() => [...agent.messages],
[JSON.stringify(agent.messages)],
);
const onSubmitMessage = useCallback(
async (text: string) => {
agent.addMessage({
id: crypto.randomUUID(),
role: "user",
content: text,
});
try {
await ck.runAgent({ agent });
} catch (error) {
console.error("runAgent failed", error);
}
},
[agent, ck],
);
const onStop = useCallback(() => {
try {
ck.stopAgent({ agent });
} catch {
agent.abortRun();
}
}, [agent, ck]);
// Strip the scroll view's internal paddingBottom (inline style set by
// CopilotChatView to reserve space for its absolutely-positioned input
// container, which we've overridden to flow in a flex layout).
// Uses a ref callback so it runs when the element actually mounts.
const paddingObserver = useRef<MutationObserver | null>(null);
const scrollAreaCallbackRef = useCallback((node: HTMLDivElement | null) => {
if (paddingObserver.current) {
paddingObserver.current.disconnect();
paddingObserver.current = null;
}
if (!node) return;
const strip = () => {
for (const div of node.querySelectorAll<HTMLElement>("div")) {
if (div.style.paddingBottom && div.style.paddingBottom !== "1rem") {
div.style.paddingBottom = "1rem";
}
}
};
strip();
const observer = new MutationObserver(strip);
observer.observe(node, {
subtree: true,
attributes: true,
attributeFilter: ["style"],
});
paddingObserver.current = observer;
}, []);
const sessionContext = chatState.session_context;
const documentFilter = chatState.document_filter;
const initialContext = chatState.initial_context ?? "";
// Context is locked after first message (qa_history has entries)
const isContextLocked =
(agentState?.[AGUI_STATE_KEY]?.qa_history?.length ?? 0) > 0;
const isContextLocked = (chatState.qa_history?.length ?? 0) > 0;
const handleFilterApply = (selected: string[]) => {
mergeChatState({ document_filter: selected });
@ -452,132 +505,15 @@ function ChatContentInner() {
mergeChatState({ initial_context: value || null });
};
useCoAgentStateRender<AgentState>({
name: "chat_agent",
render: ({ state }) => {
const chatState = state[AGUI_STATE_KEY];
if (chatState?.citations.length) {
return <CitationBlock citations={chatState.citations} />;
}
return null;
},
});
useCopilotAction({
name: "search",
available: "disabled",
parameters: [
{ name: "query", type: "string" },
{ name: "document_name", type: "string" },
],
render: ({ status, args }) => (
<ToolCallIndicator
toolName="search"
status={status}
args={args as Record<string, unknown>}
/>
),
});
useCopilotAction({
name: "ask",
available: "disabled",
parameters: [
{ name: "question", type: "string" },
{ name: "document_name", type: "string" },
],
render: ({ status, args }) => (
<ToolCallIndicator
toolName="ask"
status={status}
args={args as Record<string, unknown>}
/>
),
});
useCopilotAction({
name: "get_document",
available: "disabled",
parameters: [{ name: "query", type: "string" }],
render: ({ status, args }) => (
<ToolCallIndicator
toolName="get_document"
status={status}
args={args as Record<string, unknown>}
/>
),
});
return (
<>
<style>{`
.chat-wrapper {
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
padding: 1rem;
}
.chat-container {
width: calc(100% - 2rem);
max-width: 1400px;
height: 90vh;
border-radius: 12px;
overflow: hidden;
box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
background: white;
display: flex;
flex-direction: column;
}
.chat-header {
display: flex;
justify-content: flex-end;
gap: 0.5rem;
padding: 0.5rem 0.75rem;
border-bottom: 1px solid #e2e8f0;
background: #f8fafc;
}
.header-btn {
display: flex;
align-items: center;
gap: 0.375rem;
padding: 0.375rem 0.625rem;
background: white;
border: 1px solid #e2e8f0;
border-radius: 6px;
cursor: pointer;
color: #64748b;
font-size: 0.8125rem;
transition: all 0.15s;
}
.header-btn:hover {
background: #f1f5f9;
border-color: #cbd5e1;
color: #475569;
}
.header-btn.has-content {
background: #eff6ff;
border-color: #bfdbfe;
color: #2563eb;
}
.header-btn.has-content:hover {
background: #dbeafe;
border-color: #93c5fd;
}
.chat-content {
flex: 1;
min-height: 0;
display: flex;
flex-direction: column;
}
.chat-content > * {
flex: 1;
min-height: 0;
}
`}</style>
<ChatStateContext.Provider value={chatState}>
<div className="chat-wrapper">
<div className="chat-container">
<div className="chat-header">
<SessionManager
activeSessionId={sessionId}
onSessionChange={onSessionChange}
/>
<button
type="button"
className={`header-btn ${documentFilter.length > 0 ? "has-content" : ""}`}
@ -612,13 +548,25 @@ function ChatContentInner() {
</button>
</div>
<div className="chat-content">
<CopilotChat
labels={{
title: "haiku.rag Chat",
initial:
"Hello! I can help you search and answer questions from your knowledge base. Ask me anything!",
<CopilotChatView
messageView={MessageViewWithCitations}
messages={messages}
isRunning={agent.isRunning}
inputProps={{
onSubmitMessage,
onStop,
}}
/>
>
{({ scrollView, feather, inputContainer }) => (
<div className="chat-layout">
<div ref={scrollAreaCallbackRef} className="chat-scroll-area">
{scrollView}
{feather}
</div>
<div className="chat-input-area">{inputContainer}</div>
</div>
)}
</CopilotChatView>
</div>
<DbInfo />
</div>
@ -637,18 +585,34 @@ function ChatContentInner() {
selected={documentFilter}
onApply={handleFilterApply}
/>
</>
</ChatStateContext.Provider>
);
}
function ChatContent() {
return <ChatContentInner />;
}
export default function Chat() {
const [activeSessionId, setActiveSessionId] = useState<string | null>(null);
useEffect(() => {
let id = getActiveSessionId();
if (!id) {
id = createSession().id;
}
setActiveSessionId(id);
}, []);
if (!activeSessionId) return null;
return (
<CopilotKit runtimeUrl="/api/copilotkit" agent="chat_agent">
<ChatContent />
</CopilotKit>
<CopilotKitProvider
key={activeSessionId}
runtimeUrl="/api/copilotkit"
useSingleEndpoint
renderToolCalls={toolCallRenderers}
>
<ChatContentInner
sessionId={activeSessionId}
onSessionChange={setActiveSessionId}
/>
</CopilotKitProvider>
);
}

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@ -1,17 +1,7 @@
"use client";
import { useCallback, useState } from "react";
interface Citation {
index: number;
document_id: string;
chunk_id: string;
document_uri: string;
document_title: string | null;
page_numbers: number[];
headings: string[] | null;
content: string;
}
import type { Citation } from "../lib/sessionStorage";
interface CitationBlockProps {
citations: Citation[];
@ -133,172 +123,6 @@ export default function CitationBlock({ citations }: CitationBlockProps) {
return (
<>
<style>{`
.citation-block {
margin-top: 0.75rem;
border: 1px solid #e2e8f0;
border-radius: 8px;
overflow: hidden;
font-size: 0.875rem;
}
.citation-block-header {
background: #f8fafc;
padding: 0.5rem 0.75rem;
font-weight: 500;
color: #475569;
border-bottom: 1px solid #e2e8f0;
}
.citation-item {
border-bottom: 1px solid #f1f5f9;
}
.citation-item:last-child {
border-bottom: none;
}
.citation-header {
display: flex;
align-items: center;
gap: 0.5rem;
width: 100%;
padding: 0.5rem 0.75rem;
background: none;
border: none;
cursor: pointer;
text-align: left;
transition: background 0.15s;
}
.citation-header:hover {
background: #f8fafc;
}
.citation-index {
font-weight: 600;
color: #3b82f6;
flex-shrink: 0;
}
.citation-title {
flex: 1;
color: #334155;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.citation-page {
color: #94a3b8;
font-size: 0.75rem;
flex-shrink: 0;
}
.citation-chevron {
color: #94a3b8;
font-size: 0.625rem;
flex-shrink: 0;
transition: transform 0.15s;
}
.citation-chevron.expanded {
transform: rotate(0deg);
}
.citation-content {
padding: 0.75rem;
background: #fafafa;
border-top: 1px solid #f1f5f9;
}
.citation-headings {
font-size: 0.75rem;
color: #64748b;
margin-bottom: 0.5rem;
font-style: italic;
}
.citation-text {
color: #475569;
line-height: 1.5;
white-space: pre-wrap;
max-height: 200px;
overflow-y: auto;
}
.citation-view-btn {
margin-top: 0.5rem;
padding: 0.25rem 0.5rem;
font-size: 0.75rem;
background: #3b82f6;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
transition: background 0.15s;
}
.citation-view-btn:hover {
background: #2563eb;
}
.visual-modal-overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.75);
display: flex;
align-items: center;
justify-content: center;
z-index: 1000;
}
.visual-modal {
background: white;
border-radius: 8px;
padding: 1.5rem;
max-width: 90vw;
max-height: 90vh;
overflow: auto;
position: relative;
}
.visual-modal-close {
position: absolute;
top: 0.5rem;
right: 0.5rem;
background: #ef4444;
color: white;
border: none;
border-radius: 50%;
width: 2rem;
height: 2rem;
cursor: pointer;
font-size: 1rem;
display: flex;
align-items: center;
justify-content: center;
}
.visual-modal-close:hover {
background: #dc2626;
}
.visual-modal-title {
margin: 0 0 1rem 0;
font-size: 1.125rem;
color: #1e293b;
}
.visual-modal-loading {
padding: 2rem;
text-align: center;
color: #64748b;
}
.visual-modal-error {
padding: 1rem;
background: #fef2f2;
color: #dc2626;
border-radius: 4px;
}
.visual-modal-images {
display: flex;
flex-direction: column;
gap: 1rem;
}
.visual-modal-page-label {
font-size: 0.75rem;
color: #64748b;
margin-bottom: 0.5rem;
}
.visual-modal-image {
max-width: 100%;
border: 1px solid #e2e8f0;
border-radius: 4px;
}
`}</style>
<div className="citation-block">
<div className="citation-block-header">
Sources ({citations.length})

View file

@ -1,11 +1,9 @@
"use client";
import { useCallback, useEffect, useId, useState } from "react";
interface SessionContext {
summary: string;
last_updated: string | null;
}
import { formatRelativeTime } from "../lib/format";
import { BrainIcon } from "../lib/icons";
import type { SessionContext } from "../lib/sessionStorage";
interface ContextPanelProps {
isOpen: boolean;
@ -16,51 +14,6 @@ interface ContextPanelProps {
isLocked?: boolean;
}
function formatRelativeTime(isoString: string): string {
const date = new Date(isoString);
const now = new Date();
const diffMs = now.getTime() - date.getTime();
const diffSec = Math.floor(diffMs / 1000);
const diffMin = Math.floor(diffSec / 60);
const diffHour = Math.floor(diffMin / 60);
if (diffSec < 60) {
return "just now";
}
if (diffMin < 60) {
return `${diffMin} minute${diffMin === 1 ? "" : "s"} ago`;
}
if (diffHour < 24) {
return `${diffHour} hour${diffHour === 1 ? "" : "s"} ago`;
}
return date.toLocaleDateString();
}
function BrainIcon() {
return (
<svg
width="24"
height="24"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="1.5"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M12 5a3 3 0 1 0-5.997.125 4 4 0 0 0-2.526 5.77 4 4 0 0 0 .556 6.588A4 4 0 1 0 12 18Z" />
<path d="M12 5a3 3 0 1 1 5.997.125 4 4 0 0 1 2.526 5.77 4 4 0 0 1-.556 6.588A4 4 0 1 1 12 18Z" />
<path d="M15 13a4.5 4.5 0 0 1-3-4 4.5 4.5 0 0 1-3 4" />
<path d="M17.599 6.5a3 3 0 0 0 .399-1.375" />
<path d="M6.003 5.125A3 3 0 0 0 6.401 6.5" />
<path d="M3.477 10.896a4 4 0 0 1 .585-.396" />
<path d="M19.938 10.5a4 4 0 0 1 .585.396" />
<path d="M6 18a4 4 0 0 1-1.967-.516" />
<path d="M19.967 17.484A4 4 0 0 1 18 18" />
</svg>
);
}
export default function ContextPanel({
isOpen,
onClose,
@ -101,223 +54,78 @@ export default function ContextPanel({
const isEditMode = !isLocked && !hasSessionContext;
return (
<>
<style>{`
.context-modal-overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.5);
display: flex;
align-items: center;
justify-content: center;
z-index: 1000;
}
.context-modal {
background: white;
border-radius: 12px;
padding: 1.5rem;
width: 90%;
max-width: 600px;
max-height: 80vh;
overflow: auto;
position: relative;
box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}
.context-modal-header {
display: flex;
align-items: center;
gap: 0.75rem;
margin-bottom: 0.5rem;
}
.context-modal-icon {
display: flex;
align-items: center;
justify-content: center;
width: 40px;
height: 40px;
border-radius: 10px;
background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
color: #3b82f6;
}
.context-modal-title {
margin: 0;
font-size: 1.25rem;
font-weight: 600;
color: #1e293b;
}
.context-modal-description {
margin: 0 0 1rem 0;
font-size: 0.875rem;
color: #64748b;
line-height: 1.5;
}
.context-content {
background: #f8fafc;
border: 1px solid #e2e8f0;
border-radius: 8px;
padding: 1rem;
font-size: 0.875rem;
line-height: 1.6;
color: #334155;
white-space: pre-wrap;
max-height: 400px;
overflow-y: auto;
}
.context-textarea {
width: 100%;
min-height: 200px;
padding: 1rem;
font-size: 0.875rem;
line-height: 1.6;
color: #334155;
background: white;
border: 1px solid #e2e8f0;
border-radius: 8px;
resize: vertical;
font-family: inherit;
}
.context-textarea:focus {
outline: none;
border-color: #3b82f6;
box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.context-empty {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
padding: 2rem 1rem;
text-align: center;
color: #94a3b8;
}
.context-empty-icon {
margin-bottom: 0.75rem;
opacity: 0.5;
}
.context-empty-text {
font-size: 0.875rem;
line-height: 1.5;
}
.context-footer {
display: flex;
justify-content: space-between;
align-items: center;
margin-top: 1rem;
padding-top: 1rem;
border-top: 1px solid #e2e8f0;
}
.context-timestamp {
font-size: 0.75rem;
color: #94a3b8;
}
.context-btn {
padding: 0.5rem 1rem;
font-size: 0.875rem;
font-weight: 500;
border-radius: 6px;
cursor: pointer;
transition: all 0.15s;
}
.context-btn-close {
background: white;
color: #475569;
border: 1px solid #e2e8f0;
}
.context-btn-close:hover {
background: #f8fafc;
border-color: #cbd5e1;
}
.context-btn-save {
background: #3b82f6;
color: white;
border: 1px solid #3b82f6;
margin-left: 0.5rem;
}
.context-btn-save:hover {
background: #2563eb;
border-color: #2563eb;
}
.context-footer-buttons {
display: flex;
gap: 0.5rem;
}
`}</style>
<div
className="context-modal-overlay"
onClick={onClose}
onKeyDown={handleKeyDown}
role="dialog"
aria-modal="true"
aria-labelledby={titleId}
>
{/* biome-ignore lint/a11y/noStaticElementInteractions: modal content wrapper */}
<div
className="context-modal-overlay"
onClick={onClose}
onKeyDown={handleKeyDown}
role="dialog"
aria-modal="true"
aria-labelledby={titleId}
className="context-modal"
onClick={(e) => e.stopPropagation()}
onKeyDown={(e) => e.stopPropagation()}
>
{/* biome-ignore lint/a11y/noStaticElementInteractions: modal content wrapper */}
<div
className="context-modal"
onClick={(e) => e.stopPropagation()}
onKeyDown={(e) => e.stopPropagation()}
>
<div className="context-modal-header">
<div className="context-modal-icon">
<BrainIcon />
</div>
<h2 id={titleId} className="context-modal-title">
{isEditMode ? "Initial Context" : "Session Context"}
</h2>
<div className="context-modal-header">
<div className="context-modal-icon">
<BrainIcon size={24} strokeWidth={1.5} />
</div>
<p className="context-modal-description">
{isEditMode
? "Set background context to guide the conversation. This will be locked after you send your first message."
: "This is what the assistant has learned from your conversation so far. It uses this context to provide more relevant answers."}
</p>
{isEditMode ? (
<textarea
className="context-textarea"
placeholder="Enter any background context or instructions for the assistant..."
value={localValue}
onChange={(e) => setLocalValue(e.target.value)}
/>
) : hasSessionContext ? (
<div className="context-content">{sessionContext.summary}</div>
) : (
<div className="context-empty">
<div className="context-empty-icon">
<BrainIcon />
</div>
<div className="context-empty-text">
No context yet. Ask some questions to build context.
</div>
<h2 id={titleId} className="context-modal-title">
{isEditMode ? "Initial Context" : "Session Context"}
</h2>
</div>
<p className="context-modal-description">
{isEditMode
? "Set background context to guide the conversation. This will be locked after you send your first message."
: "This is what the assistant has learned from your conversation so far. It uses this context to provide more relevant answers."}
</p>
{isEditMode ? (
<textarea
className="context-textarea"
placeholder="Enter any background context or instructions for the assistant..."
value={localValue}
onChange={(e) => setLocalValue(e.target.value)}
/>
) : hasSessionContext ? (
<div className="context-content">{sessionContext.summary}</div>
) : (
<div className="context-empty">
<div className="context-empty-icon">
<BrainIcon size={24} strokeWidth={1.5} />
</div>
)}
<div className="context-footer">
<span className="context-timestamp">
{sessionContext?.last_updated
? `Last updated: ${formatRelativeTime(sessionContext.last_updated)}`
: ""}
</span>
<div className="context-footer-buttons">
<div className="context-empty-text">
No context yet. Ask some questions to build context.
</div>
</div>
)}
<div className="context-footer">
<span className="context-timestamp">
{sessionContext?.last_updated
? `Last updated: ${formatRelativeTime(sessionContext.last_updated)}`
: ""}
</span>
<div className="context-footer-buttons">
<button
type="button"
className="context-btn context-btn-close"
onClick={onClose}
>
{isEditMode ? "Cancel" : "Close"}
</button>
{isEditMode && (
<button
type="button"
className="context-btn context-btn-close"
onClick={onClose}
className="context-btn context-btn-save"
onClick={handleSave}
>
{isEditMode ? "Cancel" : "Close"}
Save
</button>
{isEditMode && (
<button
type="button"
className="context-btn context-btn-save"
onClick={handleSave}
>
Save
</button>
)}
</div>
)}
</div>
</div>
</div>
</>
</div>
);
}

View file

@ -57,79 +57,28 @@ export default function DbInfo() {
}
return (
<>
<style>{`
.db-info {
display: flex;
gap: 1.5rem;
padding: 0.5rem 1rem;
font-size: 0.75rem;
color: #64748b;
background: #f8fafc;
border-top: 1px solid #e2e8f0;
justify-content: center;
}
.db-info-error {
color: #dc2626;
background: #fef2f2;
}
.db-info-loading {
color: #64748b;
}
.db-info-empty {
color: #f59e0b;
background: #fffbeb;
}
.db-stat {
display: flex;
align-items: center;
gap: 0.375rem;
}
.db-stat-value {
font-weight: 600;
color: #334155;
}
.db-stat-label {
color: #94a3b8;
}
.db-index-badge {
padding: 0.125rem 0.375rem;
border-radius: 9999px;
font-size: 0.625rem;
font-weight: 500;
}
.db-index-badge.indexed {
background: #dcfce7;
color: #166534;
}
.db-index-badge.not-indexed {
background: #fef3c7;
color: #92400e;
}
`}</style>
<div className="db-info">
<div className="db-stat">
<span className="db-stat-value">{info.documents}</span>
<span className="db-stat-label">documents</span>
</div>
<div className="db-stat">
<span className="db-stat-value">{info.chunks}</span>
<span className="db-stat-label">chunks</span>
</div>
<div className="db-stat">
<span className="db-stat-value">
{formatBytes(info.documents_bytes + info.chunks_bytes)}
</span>
<span className="db-stat-label">total</span>
</div>
<div className="db-stat">
<span
className={`db-index-badge ${info.has_vector_index ? "indexed" : "not-indexed"}`}
>
{info.has_vector_index ? "indexed" : "no index"}
</span>
</div>
<div className="db-info">
<div className="db-stat">
<span className="db-stat-value">{info.documents}</span>
<span className="db-stat-label">documents</span>
</div>
</>
<div className="db-stat">
<span className="db-stat-value">{info.chunks}</span>
<span className="db-stat-label">chunks</span>
</div>
<div className="db-stat">
<span className="db-stat-value">
{formatBytes(info.documents_bytes + info.chunks_bytes)}
</span>
<span className="db-stat-label">total</span>
</div>
<div className="db-stat">
<span
className={`db-index-badge ${info.has_vector_index ? "indexed" : "not-indexed"}`}
>
{info.has_vector_index ? "indexed" : "no index"}
</span>
</div>
</div>
);
}

View file

@ -1,6 +1,7 @@
"use client";
import { useCallback, useEffect, useId, useState } from "react";
import { FilterIcon } from "../lib/icons";
interface Document {
id: string;
@ -15,23 +16,6 @@ interface DocumentFilterProps {
onApply: (selected: string[]) => void;
}
function FilterIcon() {
return (
<svg
width="24"
height="24"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="1.5"
strokeLinecap="round"
strokeLinejoin="round"
>
<polygon points="22 3 2 3 10 12.46 10 19 14 21 14 12.46 22 3" />
</svg>
);
}
export default function DocumentFilter({
isOpen,
onClose,
@ -113,269 +97,98 @@ export default function DocumentFilter({
}
return (
<>
<style>{`
.filter-modal-overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.5);
display: flex;
align-items: center;
justify-content: center;
z-index: 1000;
}
.filter-modal {
background: white;
border-radius: 12px;
padding: 1.5rem;
width: 90%;
max-width: 500px;
max-height: 80vh;
display: flex;
flex-direction: column;
position: relative;
box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}
.filter-modal-header {
display: flex;
align-items: center;
gap: 0.75rem;
margin-bottom: 0.5rem;
}
.filter-modal-icon {
display: flex;
align-items: center;
justify-content: center;
width: 40px;
height: 40px;
border-radius: 10px;
background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
color: #d97706;
}
.filter-modal-title {
margin: 0;
font-size: 1.25rem;
font-weight: 600;
color: #1e293b;
}
.filter-modal-description {
margin: 0 0 1rem 0;
font-size: 0.875rem;
color: #64748b;
line-height: 1.5;
}
.filter-search {
width: 100%;
padding: 0.625rem 0.875rem;
font-size: 0.875rem;
border: 1px solid #e2e8f0;
border-radius: 8px;
margin-bottom: 0.75rem;
outline: none;
transition: border-color 0.15s;
}
.filter-search:focus {
border-color: #3b82f6;
box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.filter-list {
flex: 1;
min-height: 200px;
max-height: 300px;
overflow-y: auto;
border: 1px solid #e2e8f0;
border-radius: 8px;
background: #f8fafc;
}
.filter-item {
display: flex;
align-items: center;
gap: 0.75rem;
padding: 0.625rem 0.875rem;
cursor: pointer;
transition: background 0.1s;
border-bottom: 1px solid #e2e8f0;
}
.filter-item:last-child {
border-bottom: none;
}
.filter-item:hover {
background: #f1f5f9;
}
.filter-item input[type="checkbox"] {
width: 16px;
height: 16px;
cursor: pointer;
accent-color: #3b82f6;
}
.filter-item-label {
flex: 1;
font-size: 0.875rem;
color: #334155;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.filter-loading, .filter-empty {
display: flex;
align-items: center;
justify-content: center;
height: 100px;
color: #94a3b8;
font-size: 0.875rem;
}
.filter-footer {
display: flex;
justify-content: space-between;
align-items: center;
margin-top: 1rem;
padding-top: 1rem;
border-top: 1px solid #e2e8f0;
}
.filter-count {
font-size: 0.75rem;
color: #64748b;
}
.filter-count strong {
color: #3b82f6;
}
.filter-buttons {
display: flex;
gap: 0.5rem;
}
.filter-btn {
padding: 0.5rem 1rem;
font-size: 0.875rem;
font-weight: 500;
border-radius: 6px;
cursor: pointer;
transition: all 0.15s;
}
.filter-btn-secondary {
background: white;
color: #475569;
border: 1px solid #e2e8f0;
}
.filter-btn-secondary:hover {
background: #f8fafc;
border-color: #cbd5e1;
}
.filter-btn-primary {
background: #3b82f6;
color: white;
border: 1px solid #3b82f6;
}
.filter-btn-primary:hover {
background: #2563eb;
border-color: #2563eb;
}
.filter-btn-clear {
background: transparent;
color: #ef4444;
border: none;
padding: 0.5rem;
font-size: 0.75rem;
}
.filter-btn-clear:hover {
text-decoration: underline;
}
`}</style>
<div
className="filter-modal-overlay"
onClick={onClose}
onKeyDown={handleKeyDown}
role="dialog"
aria-modal="true"
aria-labelledby={titleId}
>
{/* biome-ignore lint/a11y/noStaticElementInteractions: modal content wrapper */}
<div
className="filter-modal-overlay"
onClick={onClose}
onKeyDown={handleKeyDown}
role="dialog"
aria-modal="true"
aria-labelledby={titleId}
className="filter-modal"
onClick={(e) => e.stopPropagation()}
onKeyDown={(e) => e.stopPropagation()}
>
{/* biome-ignore lint/a11y/noStaticElementInteractions: modal content wrapper */}
<div
className="filter-modal"
onClick={(e) => e.stopPropagation()}
onKeyDown={(e) => e.stopPropagation()}
>
<div className="filter-modal-header">
<div className="filter-modal-icon">
<FilterIcon />
</div>
<h2 id={titleId} className="filter-modal-title">
Filter Documents
</h2>
<div className="filter-modal-header">
<div className="filter-modal-icon">
<FilterIcon size={24} strokeWidth={1.5} />
</div>
<p className="filter-modal-description">
Select documents to restrict searches. When active, only selected
documents will be searched.
</p>
<input
type="text"
className="filter-search"
placeholder="Search documents..."
value={searchTerm}
onChange={(e) => setSearchTerm(e.target.value)}
/>
<div className="filter-list">
{loading ? (
<div className="filter-loading">Loading documents...</div>
) : filteredDocuments.length === 0 ? (
<div className="filter-empty">
{searchTerm ? "No matching documents" : "No documents found"}
</div>
<h2 id={titleId} className="filter-modal-title">
Filter Documents
</h2>
</div>
<p className="filter-modal-description">
Select documents to restrict searches. When active, only selected
documents will be searched.
</p>
<input
type="text"
className="filter-search"
placeholder="Search documents..."
value={searchTerm}
onChange={(e) => setSearchTerm(e.target.value)}
/>
<div className="filter-list">
{loading ? (
<div className="filter-loading">Loading documents...</div>
) : filteredDocuments.length === 0 ? (
<div className="filter-empty">
{searchTerm ? "No matching documents" : "No documents found"}
</div>
) : (
filteredDocuments.map((doc) => {
const displayName = getDisplayName(doc);
return (
<label key={doc.id} className="filter-item">
<input
type="checkbox"
checked={localSelected.has(displayName)}
onChange={() => toggleDocument(displayName)}
/>
<span className="filter-item-label">{displayName}</span>
</label>
);
})
)}
</div>
<div className="filter-footer">
<div className="filter-count">
{localSelected.size > 0 ? (
<>
<strong>{localSelected.size}</strong> document
{localSelected.size === 1 ? "" : "s"} selected
<button
type="button"
className="filter-btn filter-btn-clear"
onClick={handleClearAll}
>
Clear all
</button>
</>
) : (
filteredDocuments.map((doc) => {
const displayName = getDisplayName(doc);
return (
<label key={doc.id} className="filter-item">
<input
type="checkbox"
checked={localSelected.has(displayName)}
onChange={() => toggleDocument(displayName)}
/>
<span className="filter-item-label">{displayName}</span>
</label>
);
})
"No filter (all documents)"
)}
</div>
<div className="filter-footer">
<div className="filter-count">
{localSelected.size > 0 ? (
<>
<strong>{localSelected.size}</strong> document
{localSelected.size === 1 ? "" : "s"} selected
<button
type="button"
className="filter-btn filter-btn-clear"
onClick={handleClearAll}
>
Clear all
</button>
</>
) : (
"No filter (all documents)"
)}
</div>
<div className="filter-buttons">
<button
type="button"
className="filter-btn filter-btn-secondary"
onClick={onClose}
>
Cancel
</button>
<button
type="button"
className="filter-btn filter-btn-primary"
onClick={handleApply}
>
Apply
</button>
</div>
<div className="filter-buttons">
<button
type="button"
className="filter-btn filter-btn-secondary"
onClick={onClose}
>
Cancel
</button>
<button
type="button"
className="filter-btn filter-btn-primary"
onClick={handleApply}
>
Apply
</button>
</div>
</div>
</div>
</>
</div>
);
}

View file

@ -0,0 +1,268 @@
"use client";
import { useEffect, useRef, useState } from "react";
import { formatRelativeTime } from "../lib/format";
import {
createSession,
deleteSession,
exportSessionToMarkdown,
getAllSessions,
type StoredSession,
setActiveSessionId,
} from "../lib/sessionStorage";
interface SessionManagerProps {
activeSessionId: string | null;
onSessionChange: (sessionId: string) => void;
}
function HistoryIcon() {
return (
<svg
width="18"
height="18"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M3 12a9 9 0 1 0 9-9 9.75 9.75 0 0 0-6.74 2.74L3 8" />
<path d="M3 3v5h5" />
<path d="M12 7v5l4 2" />
</svg>
);
}
function PlusIcon() {
return (
<svg
width="14"
height="14"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2.5"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M12 5v14" />
<path d="M5 12h14" />
</svg>
);
}
function DownloadIcon() {
return (
<svg
width="14"
height="14"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4" />
<polyline points="7 10 12 15 17 10" />
<line x1="12" y1="15" x2="12" y2="3" />
</svg>
);
}
function TrashIcon() {
return (
<svg
width="14"
height="14"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M3 6h18" />
<path d="M19 6v14c0 1-1 2-2 2H7c-1 0-2-1-2-2V6" />
<path d="M8 6V4c0-1 1-2 2-2h4c1 0 2 1 2 2v2" />
</svg>
);
}
export default function SessionManager({
activeSessionId,
onSessionChange,
}: SessionManagerProps) {
const [isOpen, setIsOpen] = useState(false);
const [sessions, setSessions] = useState<StoredSession[]>([]);
const [confirmDelete, setConfirmDelete] = useState<string | null>(null);
const dropdownRef = useRef<HTMLDivElement>(null);
useEffect(() => {
if (isOpen) setSessions(getAllSessions());
}, [isOpen]);
useEffect(() => {
function handleClickOutside(e: MouseEvent) {
if (
dropdownRef.current &&
!dropdownRef.current.contains(e.target as Node)
) {
setIsOpen(false);
setConfirmDelete(null);
}
}
if (isOpen) document.addEventListener("mousedown", handleClickOutside);
return () => document.removeEventListener("mousedown", handleClickOutside);
}, [isOpen]);
const handleNewSession = () => {
const session = createSession();
setSessions(getAllSessions());
setIsOpen(false);
onSessionChange(session.id);
};
const handleSelectSession = (id: string) => {
setActiveSessionId(id);
setIsOpen(false);
onSessionChange(id);
};
const handleDelete = (id: string) => {
deleteSession(id);
const remaining = getAllSessions();
setSessions(remaining);
setConfirmDelete(null);
if (id === activeSessionId) {
if (remaining.length > 0) {
setActiveSessionId(remaining[0].id);
onSessionChange(remaining[0].id);
} else {
const session = createSession();
setSessions(getAllSessions());
onSessionChange(session.id);
}
}
};
const handleExport = (session: StoredSession) => {
exportSessionToMarkdown(session);
};
const activeTitle =
sessions.find((s) => s.id === activeSessionId)?.title ?? "Sessions";
return (
<div ref={dropdownRef} style={{ position: "relative" }}>
<button
type="button"
className="header-btn"
onClick={() => setIsOpen(!isOpen)}
title="Session history"
>
<HistoryIcon />
<span
style={{
maxWidth: 120,
overflow: "hidden",
textOverflow: "ellipsis",
whiteSpace: "nowrap",
}}
>
{activeTitle}
</span>
</button>
{isOpen && (
<div className="session-dropdown">
<div className="session-dropdown-header">
<span>Sessions</span>
<button
type="button"
className="new-session-btn"
onClick={handleNewSession}
>
<PlusIcon />
New
</button>
</div>
<div className="session-list">
{sessions.length === 0 && (
<div
style={{
padding: "16px",
textAlign: "center",
color: "#94a3b8",
fontSize: "13px",
}}
>
No sessions yet
</div>
)}
{sessions.map((session) => (
<div
key={session.id}
className={`session-item ${session.id === activeSessionId ? "active" : ""}`}
>
<button
type="button"
className="session-item-content"
onClick={() => handleSelectSession(session.id)}
onKeyDown={(e) => {
if (e.key === "Enter") handleSelectSession(session.id);
}}
>
<div className="session-item-title">{session.title}</div>
<div className="session-item-meta">
<span>{session.messages.length} messages</span>
<span>{formatRelativeTime(session.updatedAt, true)}</span>
</div>
</button>
{confirmDelete === session.id ? (
<div className="confirm-delete">
<button
type="button"
className="confirm-yes"
onClick={() => handleDelete(session.id)}
>
Delete
</button>
<button
type="button"
className="confirm-no"
onClick={() => setConfirmDelete(null)}
>
Cancel
</button>
</div>
) : (
<div className="session-actions">
<button
type="button"
className="session-action-btn"
onClick={() => handleExport(session)}
title="Export to markdown"
>
<DownloadIcon />
</button>
<button
type="button"
className="session-action-btn danger"
onClick={() => setConfirmDelete(session.id)}
title="Delete session"
>
<TrashIcon />
</button>
</div>
)}
</div>
))}
</div>
</div>
)}
</div>
);
}

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@ -0,0 +1,18 @@
export function formatRelativeTime(dateStr: string, compact = false): string {
const now = Date.now();
const then = new Date(dateStr).getTime();
const seconds = Math.floor((now - then) / 1000);
if (seconds < 60) return "just now";
const minutes = Math.floor(seconds / 60);
if (minutes < 60)
return compact
? `${minutes}m ago`
: `${minutes} minute${minutes === 1 ? "" : "s"} ago`;
const hours = Math.floor(minutes / 60);
if (hours < 24)
return compact
? `${hours}h ago`
: `${hours} hour${hours === 1 ? "" : "s"} ago`;
const days = Math.floor(hours / 24);
return compact ? `${days}d ago` : new Date(dateStr).toLocaleDateString();
}

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@ -0,0 +1,46 @@
interface IconProps {
size?: number;
strokeWidth?: number;
}
export function BrainIcon({ size = 18, strokeWidth = 2 }: IconProps) {
return (
<svg
width={size}
height={size}
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth={strokeWidth}
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M12 5a3 3 0 1 0-5.997.125 4 4 0 0 0-2.526 5.77 4 4 0 0 0 .556 6.588A4 4 0 1 0 12 18Z" />
<path d="M12 5a3 3 0 1 1 5.997.125 4 4 0 0 1 2.526 5.77 4 4 0 0 1-.556 6.588A4 4 0 1 1 12 18Z" />
<path d="M15 13a4.5 4.5 0 0 1-3-4 4.5 4.5 0 0 1-3 4" />
<path d="M17.599 6.5a3 3 0 0 0 .399-1.375" />
<path d="M6.003 5.125A3 3 0 0 0 6.401 6.5" />
<path d="M3.477 10.896a4 4 0 0 1 .585-.396" />
<path d="M19.938 10.5a4 4 0 0 1 .585.396" />
<path d="M6 18a4 4 0 0 1-1.967-.516" />
<path d="M19.967 17.484A4 4 0 0 1 18 18" />
</svg>
);
}
export function FilterIcon({ size = 18, strokeWidth = 2 }: IconProps) {
return (
<svg
width={size}
height={size}
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth={strokeWidth}
strokeLinecap="round"
strokeLinejoin="round"
>
<polygon points="22 3 2 3 10 12.46 10 19 14 21 14 12.46 22 3" />
</svg>
);
}

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@ -0,0 +1,172 @@
export interface Citation {
index: number;
document_id: string;
chunk_id: string;
document_uri: string;
document_title: string | null;
page_numbers: number[];
headings: string[] | null;
content: string;
}
export interface QAResponse {
question: string;
answer: string;
confidence: number;
citations: Citation[];
}
export interface SessionContext {
summary: string;
last_updated: string | null;
}
export interface ChatSessionState {
initial_context: string | null;
citations: Citation[];
qa_history: QAResponse[];
session_context: SessionContext | null;
document_filter: string[];
citation_registry: Record<string, number>;
}
export interface StoredMessage {
id: string;
role?: string;
content?: string;
[key: string]: unknown;
}
export interface StoredSession {
id: string;
title: string;
messages: StoredMessage[];
chatState: ChatSessionState;
createdAt: string;
updatedAt: string;
}
const SESSIONS_KEY = "haiku.rag.sessions";
const ACTIVE_SESSION_KEY = "haiku.rag.activeSession";
export function normalizeChatState(state?: ChatSessionState): ChatSessionState {
return {
initial_context: state?.initial_context ?? null,
citations: state?.citations ?? [],
qa_history: state?.qa_history ?? [],
session_context: state?.session_context ?? null,
document_filter: state?.document_filter ?? [],
citation_registry: state?.citation_registry ?? {},
};
}
export function getAllSessions(): StoredSession[] {
const raw = localStorage.getItem(SESSIONS_KEY);
if (!raw) return [];
try {
return JSON.parse(raw) as StoredSession[];
} catch {
return [];
}
}
export function getSession(id: string): StoredSession | null {
return getAllSessions().find((s) => s.id === id) ?? null;
}
export function getActiveSessionId(): string | null {
return localStorage.getItem(ACTIVE_SESSION_KEY);
}
export function setActiveSessionId(id: string): void {
localStorage.setItem(ACTIVE_SESSION_KEY, id);
}
export function createSession(): StoredSession {
const now = new Date().toISOString();
const session: StoredSession = {
id: crypto.randomUUID(),
title: "New Session",
messages: [],
chatState: normalizeChatState(),
createdAt: now,
updatedAt: now,
};
const sessions = getAllSessions();
sessions.unshift(session);
localStorage.setItem(SESSIONS_KEY, JSON.stringify(sessions));
setActiveSessionId(session.id);
return session;
}
export function saveSession(session: StoredSession): void {
const sessions = getAllSessions();
const idx = sessions.findIndex((s) => s.id === session.id);
if (idx >= 0) {
sessions[idx] = session;
} else {
sessions.unshift(session);
}
localStorage.setItem(SESSIONS_KEY, JSON.stringify(sessions));
}
export function updateSessionMessages(
id: string,
messages: StoredMessage[],
chatState: ChatSessionState,
): void {
const sessions = getAllSessions();
const idx = sessions.findIndex((s) => s.id === id);
if (idx < 0) return;
const session = sessions[idx];
session.messages = messages;
session.chatState = chatState;
session.updatedAt = new Date().toISOString();
// Derive title from first user message
if (session.title === "New Session") {
const firstUserMsg = messages.find(
(m) =>
m.content &&
typeof m.role === "string" &&
m.role.toLowerCase() === "user",
);
if (firstUserMsg?.content) {
session.title =
firstUserMsg.content.length > 60
? `${firstUserMsg.content.slice(0, 57)}...`
: firstUserMsg.content;
}
}
sessions[idx] = session;
localStorage.setItem(SESSIONS_KEY, JSON.stringify(sessions));
}
export function deleteSession(id: string): void {
const sessions = getAllSessions().filter((s) => s.id !== id);
localStorage.setItem(SESSIONS_KEY, JSON.stringify(sessions));
if (getActiveSessionId() === id) {
localStorage.removeItem(ACTIVE_SESSION_KEY);
}
}
export function exportSessionToMarkdown(session: StoredSession): void {
const lines: string[] = [`# ${session.title}`, ""];
for (const msg of session.messages) {
const role = typeof msg.role === "string" ? msg.role.toLowerCase() : "";
if (role === "user" && msg.content) {
lines.push(`**User:** ${msg.content}`, "");
} else if (role === "assistant" && msg.content) {
lines.push(`**Assistant:** ${msg.content}`, "");
}
}
const blob = new Blob([lines.join("\n")], { type: "text/markdown" });
const url = URL.createObjectURL(blob);
const a = document.createElement("a");
a.href = url;
a.download = `${session.title.replace(/[^a-zA-Z0-9]/g, "_")}.md`;
a.click();
URL.revokeObjectURL(url);
}

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@ -7,14 +7,13 @@
"build": "next build",
"start": "next start",
"lint": "next lint",
"check": "biome check app components",
"format": "biome check --write app components"
"check": "biome check app components lib",
"format": "biome check --write app components lib"
},
"dependencies": {
"@ag-ui/client": "^0.0.42",
"@copilotkit/react-core": "^1.50.0",
"@copilotkit/react-ui": "^1.50.0",
"@copilotkit/runtime": "^1.50.0",
"@copilotkit/react-core": "^1.51.3",
"@copilotkit/runtime": "^1.51.3",
"next": "^16.1.1",
"react": "^19.0.0",
"react-dom": "^19.0.0"

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