feat: AI assistant (HartBOT), demand filling, budget-per-role, project favorites, and UX improvements

AI Assistant (HartBOT):
- Chat panel with inline layout, session persistence, message history (up-arrow recall)
- OpenAI function calling with 20+ tools (search, navigate, create/cancel allocations, update status)
- RBAC-aware tool filtering, fuzzy search with word-level matching
- Navigation actions (router.push) and data invalidation after mutations
- Country/metro city/org unit/role filtering on resource search

Demand Filling Enhancements:
- Two-phase fill modal: plan multiple resources, then confirm & assign all at once
- Availability preview per resource (available/partial/conflict days, existing bookings)
- Coverage bar showing demand hours distribution across assigned resources
- Fill demand from project detail page (new Assign button per demand)
- Fixed: filled demands no longer shown on timeline, demand bars no longer overlap

Budget per Role:
- DemandRequirement.budgetCents field (schema + API + UI)
- Project wizard step 3: budget input per role with allocation summary bar
- Project detail: allocated vs booked budget per demand
- Fill demand modal: role budget display with cost estimates
- AllocationModal: budget field for demand editing

Project Favorites:
- User.favoriteProjectIds (JSONB) with toggle API
- Star button on projects list and detail page (optimistic updates)
- "My Projects" dashboard widget (favorites + responsible person projects)

Project Management:
- Edit project from detail page (ProjectModal integration)
- Edit demands from detail page (AllocationModal integration)
- Admin-only project deletion (cascades assignments + demands)
- Create user accounts from admin panel

Timeline Fixes:
- Country multi-select filter with backend support
- URL param sync for same-page navigation (AI assistant integration)
- Demand lane stacking (no more overlapping bars)
- Single-day booking resize handles (always visible, min 6px)
- Single-day resize allowed (start === end)
- "All Clients" toggle (select all / deselect all)

Other Fixes:
- crypto.randomUUID fallback for non-secure contexts
- Chat message limit raised (200 max, client sends last 40)
- Status dropdown portal (no longer clipped by table overflow)
- Cents display restored in budget views (2 decimal places)
- Allocations grouped view with project sub-groups (collapsed by default)
- Server-side resource search for project wizard (no 500 limit)

Co-Authored-By: claude-flow <ruv@ruv.net>
This commit is contained in:
2026-03-16 15:31:48 +01:00
parent f5551e33c7
commit b0e55786c3
44 changed files with 4516 additions and 609 deletions
@@ -0,0 +1,181 @@
"use client";
import { useCallback, useEffect, useRef, useState } from "react";
import { usePathname } from "next/navigation";
import { trpc } from "~/lib/trpc/client.js";
import { ChatMessage, TypingIndicator } from "./ChatMessage.js";
/** Map route prefixes to human-readable page context for the AI */
const ROUTE_CONTEXT: Record<string, string> = {
"/dashboard": "Dashboard — Übersicht mit KPIs, aktive Projekte, Ressourcen-Auslastung",
"/timeline": "Timeline — Gantt-artige Ansicht aller Allokationen und Projekte",
"/allocations": "Allokationen — Liste aller Zuweisungen von Ressourcen zu Projekten",
"/staffing": "Staffing — Projektbesetzung und Kapazitätsplanung",
"/resources": "Ressourcen — Liste aller Mitarbeiter mit Details (FTE, LCR, Skills, Chapter)",
"/projects": "Projekte — Liste aller Projekte mit Budget, Status, Zeitraum",
"/roles": "Rollen — Verwaltung der verfügbaren Rollen",
"/estimates": "Estimating — Aufwandsschätzungen für Projekte",
"/vacations/my": "Meine Urlaube — Eigene Urlaubsanträge und Saldo",
"/vacations": "Urlaubsverwaltung — Alle Urlaubsanträge, Genehmigungen, Team-Kalender",
"/analytics/skills": "Skills Analytics — Skill-Verteilung und -Analyse über alle Ressourcen",
"/analytics/computation-graph": "Computation Graph — Berechnungsvisualisierung für Budget/Kosten",
"/reports/chargeability": "Chargeability Report — Auslastungsanalyse pro Ressource",
"/admin/settings": "Admin-Einstellungen — System-Konfiguration, AI-Credentials, SMTP",
"/admin/users": "Benutzerverwaltung — Rollen, Berechtigungen, Zugänge",
};
function resolvePageContext(pathname: string): string {
// Try exact match first, then prefix match (longest first)
const exact = ROUTE_CONTEXT[pathname];
if (exact) return exact;
const sorted = Object.keys(ROUTE_CONTEXT).sort((a, b) => b.length - a.length);
for (const prefix of sorted) {
const ctx = ROUTE_CONTEXT[prefix];
if (pathname.startsWith(prefix) && ctx) return ctx;
}
return pathname;
}
interface Message {
role: "user" | "assistant";
content: string;
}
export function ChatDrawer({ onClose }: { onClose: () => void }) {
const pathname = usePathname();
const [messages, setMessages] = useState<Message[]>([]);
const [input, setInput] = useState("");
const [isLoading, setIsLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const scrollRef = useRef<HTMLDivElement>(null);
const inputRef = useRef<HTMLTextAreaElement>(null);
const chatMutation = trpc.assistant.chat.useMutation();
// Auto-scroll to bottom on new messages
useEffect(() => {
const el = scrollRef.current;
if (el) el.scrollTop = el.scrollHeight;
}, [messages, isLoading]);
// Focus input on mount
useEffect(() => {
inputRef.current?.focus();
}, []);
const sendMessage = useCallback(async () => {
const text = input.trim();
if (!text || isLoading) return;
setInput("");
setError(null);
const userMsg: Message = { role: "user", content: text };
const updated = [...messages, userMsg];
setMessages(updated);
setIsLoading(true);
try {
const reply = await chatMutation.mutateAsync({
messages: updated.map((m) => ({ role: m.role, content: m.content })),
...(pathname ? { pageContext: resolvePageContext(pathname) } : {}),
});
setMessages((prev) => [...prev, { role: "assistant", content: reply.content }]);
} catch (err) {
const msg = err instanceof Error ? err.message : "Something went wrong";
setError(msg);
} finally {
setIsLoading(false);
}
}, [input, isLoading, messages, chatMutation]);
const handleKeyDown = (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
if (e.key === "Enter" && !e.shiftKey) {
e.preventDefault();
void sendMessage();
}
};
return (
<>
{/* Backdrop */}
<div className="fixed inset-0 z-40 bg-black/20 backdrop-blur-sm" onClick={onClose} />
{/* Panel */}
<div className="fixed right-0 top-0 z-50 flex h-full w-full max-w-md flex-col border-l border-gray-200 bg-white shadow-2xl dark:border-slate-700 dark:bg-slate-900">
{/* Header */}
<div className="flex items-center justify-between border-b border-gray-200 px-4 py-3 dark:border-slate-700">
<div className="flex items-center gap-2">
<div className="flex h-8 w-8 items-center justify-center rounded-xl bg-brand-600 text-white">
<svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 10h.01M12 10h.01M16 10h.01M9 16H5a2 2 0 01-2-2V6a2 2 0 012-2h14a2 2 0 012 2v8a2 2 0 01-2 2h-5l-5 5v-5z" />
</svg>
</div>
<h2 className="text-sm font-semibold text-gray-900 dark:text-gray-100">Planarchy Assistant</h2>
</div>
<button
type="button"
onClick={onClose}
className="rounded-lg p-1.5 text-gray-400 hover:bg-gray-100 hover:text-gray-600 dark:hover:bg-slate-800 dark:hover:text-gray-300"
>
<svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
</div>
{/* Messages */}
<div ref={scrollRef} className="flex-1 overflow-y-auto px-4 py-4 space-y-3">
{messages.length === 0 && !isLoading && (
<div className="flex flex-col items-center justify-center py-16 text-center text-sm text-gray-400 dark:text-gray-500">
<svg className="mb-3 h-10 w-10" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M8 10h.01M12 10h.01M16 10h.01M9 16H5a2 2 0 01-2-2V6a2 2 0 012-2h14a2 2 0 012 2v8a2 2 0 01-2 2h-5l-5 5v-5z" />
</svg>
<p className="font-medium">Frag mich etwas!</p>
<p className="mt-1 text-xs">z.B. &quot;Welche Ressourcen gibt es?&quot; oder &quot;Budget von Z033T593?&quot;</p>
</div>
)}
{messages.map((msg, i) => (
<ChatMessage key={i} role={msg.role} content={msg.content} />
))}
{isLoading && <TypingIndicator />}
{error && (
<div className="rounded-xl border border-red-200 bg-red-50 px-4 py-2.5 text-sm text-red-700 dark:border-red-900/50 dark:bg-red-950/30 dark:text-red-400">
{error}
</div>
)}
</div>
{/* Input */}
<div className="border-t border-gray-200 px-4 py-3 dark:border-slate-700">
<div className="flex items-end gap-2">
<textarea
ref={inputRef}
value={input}
onChange={(e) => setInput(e.target.value)}
onKeyDown={handleKeyDown}
placeholder="Nachricht eingeben..."
rows={1}
className="flex-1 resize-none rounded-xl border border-gray-300 bg-white px-3 py-2 text-sm text-gray-900 placeholder:text-gray-400 focus:border-brand-500 focus:outline-none focus:ring-1 focus:ring-brand-500 dark:border-slate-600 dark:bg-slate-800 dark:text-gray-100 dark:placeholder:text-gray-500 dark:focus:border-brand-500"
style={{ maxHeight: "120px" }}
onInput={(e) => {
const target = e.target as HTMLTextAreaElement;
target.style.height = "auto";
target.style.height = `${Math.min(target.scrollHeight, 120)}px`;
}}
/>
<button
type="button"
onClick={() => void sendMessage()}
disabled={!input.trim() || isLoading}
className="flex h-9 w-9 shrink-0 items-center justify-center rounded-xl bg-brand-600 text-white transition-colors hover:bg-brand-700 disabled:opacity-40 disabled:cursor-not-allowed"
>
<svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5 12h14M12 5l7 7-7 7" />
</svg>
</button>
</div>
</div>
</div>
</>
);
}
@@ -0,0 +1,142 @@
"use client";
import { useMemo } from "react";
interface ChatMessageProps {
role: "user" | "assistant";
content: string;
}
/**
* Lightweight inline markdown renderer — handles bold, italic, code,
* bullet lists, and numbered lists without a full markdown library.
*/
function renderMarkdown(text: string) {
const lines = text.split("\n");
const elements: React.ReactNode[] = [];
let listItems: React.ReactNode[] = [];
let listType: "ul" | "ol" | null = null;
const flushList = () => {
if (listItems.length > 0 && listType) {
const Tag = listType;
elements.push(
<Tag key={`list-${elements.length}`} className={listType === "ul" ? "list-disc pl-4 my-1 space-y-0.5" : "list-decimal pl-4 my-1 space-y-0.5"}>
{listItems}
</Tag>,
);
listItems = [];
listType = null;
}
};
for (const [i, line] of lines.entries()) {
// Bullet list: "- item" or "* item"
const bulletMatch = line.match(/^[\s]*[-*]\s+(.*)/);
if (bulletMatch?.[1]) {
if (listType !== "ul") flushList();
listType = "ul";
listItems.push(<li key={`li-${i}`}>{inlineFormat(bulletMatch[1])}</li>);
continue;
}
// Numbered list: "1. item"
const numMatch = line.match(/^[\s]*\d+\.\s+(.*)/);
if (numMatch?.[1]) {
if (listType !== "ol") flushList();
listType = "ol";
listItems.push(<li key={`li-${i}`}>{inlineFormat(numMatch[1])}</li>);
continue;
}
// Not a list item — flush any pending list
flushList();
// Empty line → spacing
if (line.trim() === "") {
elements.push(<div key={`br-${i}`} className="h-2" />);
continue;
}
// Regular paragraph
elements.push(<p key={`p-${i}`} className="my-0">{inlineFormat(line)}</p>);
}
flushList();
return elements;
}
/** Parse inline formatting: **bold**, *italic*, `code` */
function inlineFormat(text: string): React.ReactNode {
// Split by inline patterns, preserving delimiters
const parts: React.ReactNode[] = [];
// Regex: **bold**, *italic*, `code`
const regex = /(\*\*(.+?)\*\*|\*(.+?)\*|`(.+?)`)/g;
let lastIndex = 0;
let match: RegExpExecArray | null;
while ((match = regex.exec(text)) !== null) {
// Text before this match
if (match.index > lastIndex) {
parts.push(text.slice(lastIndex, match.index));
}
if (match[2]) {
// **bold**
parts.push(<strong key={`b-${match.index}`} className="font-semibold">{match[2]}</strong>);
} else if (match[3]) {
// *italic*
parts.push(<em key={`i-${match.index}`}>{match[3]}</em>);
} else if (match[4]) {
// `code`
parts.push(
<code key={`c-${match.index}`} className="rounded bg-black/10 px-1 py-0.5 text-xs font-mono dark:bg-white/10">
{match[4]}
</code>,
);
}
lastIndex = match.index + match[0].length;
}
// Remaining text
if (lastIndex < text.length) {
parts.push(text.slice(lastIndex));
}
return parts.length === 1 ? parts[0] : <>{parts}</>;
}
export function ChatMessage({ role, content }: ChatMessageProps) {
const isUser = role === "user";
const rendered = useMemo(() => (isUser ? null : renderMarkdown(content)), [isUser, content]);
return (
<div className={`flex ${isUser ? "justify-end" : "justify-start"}`}>
<div
className={`max-w-[85%] rounded-2xl px-4 py-2.5 text-sm leading-relaxed ${
isUser
? "bg-brand-600 text-white"
: "bg-gray-100 text-gray-800 dark:bg-slate-800 dark:text-gray-200"
}`}
>
{isUser ? (
<span className="whitespace-pre-wrap break-words">{content}</span>
) : (
<div className="space-y-0.5 break-words">{rendered}</div>
)}
</div>
</div>
);
}
export function TypingIndicator() {
return (
<div className="flex justify-start">
<div className="rounded-2xl bg-gray-100 px-4 py-3 dark:bg-slate-800">
<div className="flex gap-1.5">
<span className="h-2 w-2 animate-bounce rounded-full bg-gray-400 dark:bg-gray-500" style={{ animationDelay: "0ms" }} />
<span className="h-2 w-2 animate-bounce rounded-full bg-gray-400 dark:bg-gray-500" style={{ animationDelay: "150ms" }} />
<span className="h-2 w-2 animate-bounce rounded-full bg-gray-400 dark:bg-gray-500" style={{ animationDelay: "300ms" }} />
</div>
</div>
</div>
);
}
@@ -0,0 +1,270 @@
"use client";
import { useCallback, useEffect, useRef, useState } from "react";
import { usePathname, useRouter } from "next/navigation";
import { trpc } from "~/lib/trpc/client.js";
import { ChatMessage, TypingIndicator } from "./ChatMessage.js";
/** Map route prefixes to human-readable page context for the AI */
const ROUTE_CONTEXT: Record<string, string> = {
"/dashboard": "Dashboard — Übersicht mit KPIs, aktive Projekte, Ressourcen-Auslastung",
"/timeline": "Timeline — Gantt-artige Ansicht aller Allokationen und Projekte",
"/allocations": "Allokationen — Liste aller Zuweisungen von Ressourcen zu Projekten",
"/staffing": "Staffing — Projektbesetzung und Kapazitätsplanung",
"/resources": "Ressourcen — Liste aller Mitarbeiter mit Details (FTE, LCR, Skills, Chapter)",
"/projects": "Projekte — Liste aller Projekte mit Budget, Status, Zeitraum",
"/roles": "Rollen — Verwaltung der verfügbaren Rollen",
"/estimates": "Estimating — Aufwandsschätzungen für Projekte",
"/vacations/my": "Meine Urlaube — Eigene Urlaubsanträge und Saldo",
"/vacations": "Urlaubsverwaltung — Alle Urlaubsanträge, Genehmigungen, Team-Kalender",
"/analytics/skills": "Skills Analytics — Skill-Verteilung und -Analyse über alle Ressourcen",
"/analytics/computation-graph": "Computation Graph — Berechnungsvisualisierung für Budget/Kosten",
"/reports/chargeability": "Chargeability Report — Auslastungsanalyse pro Ressource",
"/admin/settings": "Admin-Einstellungen — System-Konfiguration, AI-Credentials, SMTP",
"/admin/users": "Benutzerverwaltung — Rollen, Berechtigungen, Zugänge",
};
function resolvePageContext(pathname: string): string {
const exact = ROUTE_CONTEXT[pathname];
if (exact) return exact;
const sorted = Object.keys(ROUTE_CONTEXT).sort((a, b) => b.length - a.length);
for (const prefix of sorted) {
const ctx = ROUTE_CONTEXT[prefix];
if (pathname.startsWith(prefix) && ctx) return ctx;
}
return pathname;
}
interface Message {
role: "user" | "assistant";
content: string;
}
const STORAGE_KEY = "planarchy-chat-messages";
/** Load messages from sessionStorage (survives page reloads, clears on tab close). */
function loadPersistedMessages(): Message[] {
if (typeof window === "undefined") return [];
try {
const raw = sessionStorage.getItem(STORAGE_KEY);
if (raw) return JSON.parse(raw) as Message[];
} catch { /* ignore corrupt data */ }
return [];
}
/** Module-level cache — avoids re-parsing sessionStorage on every client-side navigation. */
let cachedMessages: Message[] | null = null;
export function ChatPanel({ onClose }: { onClose: () => void }) {
const pathname = usePathname();
const router = useRouter();
const utils = trpc.useUtils();
const [messages, setMessages] = useState<Message[]>(() => cachedMessages ?? loadPersistedMessages());
const [input, setInput] = useState("");
const [isLoading, setIsLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const scrollRef = useRef<HTMLDivElement>(null);
const inputRef = useRef<HTMLTextAreaElement>(null);
const chatMutation = trpc.assistant.chat.useMutation();
// Sync to module-level cache + sessionStorage on every change
useEffect(() => {
cachedMessages = messages;
try { sessionStorage.setItem(STORAGE_KEY, JSON.stringify(messages)); } catch { /* quota exceeded */ }
}, [messages]);
// Auto-scroll to bottom on new messages
useEffect(() => {
const el = scrollRef.current;
if (el) el.scrollTop = el.scrollHeight;
}, [messages, isLoading]);
// Focus input on mount
useEffect(() => {
inputRef.current?.focus();
}, []);
const sendMessage = useCallback(async () => {
const text = input.trim();
if (!text || isLoading) return;
setInput("");
setError(null);
const userMsg: Message = { role: "user", content: text };
const updated = [...messages, userMsg];
setMessages(updated);
setIsLoading(true);
try {
const reply = await chatMutation.mutateAsync({
messages: updated.slice(-40).map((m) => ({ role: m.role, content: m.content })),
...(pathname ? { pageContext: resolvePageContext(pathname) } : {}),
});
setMessages((prev) => [...prev, { role: "assistant", content: reply.content }]);
// Handle actions from the AI (navigation, data invalidation)
const actions = (reply as { actions?: Array<{ type: string; url?: string; scope?: string[] }> }).actions;
if (actions) {
for (const action of actions) {
if (action.type === "navigate" && action.url) {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
router.push(action.url as any);
} else if (action.type === "invalidate" && action.scope) {
// Invalidate relevant tRPC queries so the UI refreshes
for (const scope of action.scope) {
if (scope === "allocation" || scope === "timeline") {
void utils.allocation.invalidate();
void utils.timeline.invalidate();
}
if (scope === "resource") void utils.resource.invalidate();
if (scope === "project") void utils.project.invalidate();
}
}
}
}
} catch (err) {
const msg = err instanceof Error ? err.message : "Something went wrong";
setError(msg);
} finally {
setIsLoading(false);
}
}, [input, isLoading, messages, chatMutation, pathname]);
// Track user message history for up-arrow recall
const userHistory = useRef<string[]>([]);
const historyIndex = useRef(-1);
// Keep userHistory in sync with messages
useEffect(() => {
userHistory.current = messages.filter((m) => m.role === "user").map((m) => m.content);
historyIndex.current = -1;
}, [messages]);
const handleKeyDown = (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
if (e.key === "ArrowUp" && input === "" && userHistory.current.length > 0) {
e.preventDefault();
const nextIdx = historyIndex.current < 0
? userHistory.current.length - 1
: Math.max(0, historyIndex.current - 1);
historyIndex.current = nextIdx;
setInput(userHistory.current[nextIdx] ?? "");
return;
}
if (e.key === "ArrowDown" && historyIndex.current >= 0) {
e.preventDefault();
const nextIdx = historyIndex.current + 1;
if (nextIdx >= userHistory.current.length) {
historyIndex.current = -1;
setInput("");
} else {
historyIndex.current = nextIdx;
setInput(userHistory.current[nextIdx] ?? "");
}
return;
}
if (e.key === "Enter" && !e.shiftKey) {
e.preventDefault();
void sendMessage();
}
};
const clearChat = () => {
setMessages([]);
setError(null);
cachedMessages = null;
try { sessionStorage.removeItem(STORAGE_KEY); } catch { /* noop */ }
};
return (
<div className="w-96 shrink-0 flex flex-col border-l border-gray-200 bg-white dark:border-slate-800 dark:bg-slate-950/75">
{/* Header */}
<div className="flex items-center justify-between border-b border-gray-200 px-4 py-3 dark:border-slate-800">
<div className="flex items-center gap-2">
<div className="flex h-7 w-7 items-center justify-center rounded-lg bg-brand-600 text-white">
<svg className="h-3.5 w-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 10h.01M12 10h.01M16 10h.01M9 16H5a2 2 0 01-2-2V6a2 2 0 012-2h14a2 2 0 012 2v8a2 2 0 01-2 2h-5l-5 5v-5z" />
</svg>
</div>
<h2 className="text-sm font-semibold text-gray-900 dark:text-gray-100">HartBOT</h2>
</div>
<div className="flex items-center gap-1">
{messages.length > 0 && (
<button
type="button"
onClick={clearChat}
className="rounded-lg p-1.5 text-gray-400 hover:bg-gray-100 hover:text-gray-600 dark:hover:bg-slate-800 dark:hover:text-gray-300"
title="Chat leeren"
>
<svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
</svg>
</button>
)}
<button
type="button"
onClick={onClose}
className="rounded-lg p-1.5 text-gray-400 hover:bg-gray-100 hover:text-gray-600 dark:hover:bg-slate-800 dark:hover:text-gray-300"
>
<svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
</div>
</div>
{/* Messages */}
<div ref={scrollRef} className="flex-1 overflow-y-auto px-3 py-3 space-y-3">
{messages.length === 0 && !isLoading && (
<div className="flex flex-col items-center justify-center py-12 text-center text-sm text-gray-400 dark:text-gray-500">
<svg className="mb-2 h-8 w-8" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M8 10h.01M12 10h.01M16 10h.01M9 16H5a2 2 0 01-2-2V6a2 2 0 012-2h14a2 2 0 012 2v8a2 2 0 01-2 2h-5l-5 5v-5z" />
</svg>
<p className="font-medium">Frag mich etwas!</p>
<p className="mt-1 text-xs">z.B. &quot;Welche Ressourcen gibt es?&quot;</p>
</div>
)}
{messages.map((msg, i) => (
<ChatMessage key={i} role={msg.role} content={msg.content} />
))}
{isLoading && <TypingIndicator />}
{error && (
<div className="rounded-xl border border-red-200 bg-red-50 px-3 py-2 text-sm text-red-700 dark:border-red-900/50 dark:bg-red-950/30 dark:text-red-400">
{error}
</div>
)}
</div>
{/* Input */}
<div className="border-t border-gray-200 px-3 py-2.5 dark:border-slate-800">
<div className="flex items-end gap-2">
<textarea
ref={inputRef}
value={input}
onChange={(e) => setInput(e.target.value)}
onKeyDown={handleKeyDown}
placeholder="Nachricht eingeben..."
rows={1}
className="flex-1 resize-none rounded-xl border border-gray-300 bg-white px-3 py-2 text-sm text-gray-900 placeholder:text-gray-400 focus:border-brand-500 focus:outline-none focus:ring-1 focus:ring-brand-500 dark:border-slate-600 dark:bg-slate-800 dark:text-gray-100 dark:placeholder:text-gray-500 dark:focus:border-brand-500"
style={{ maxHeight: "120px" }}
onInput={(e) => {
const target = e.target as HTMLTextAreaElement;
target.style.height = "auto";
target.style.height = `${Math.min(target.scrollHeight, 120)}px`;
}}
/>
<button
type="button"
onClick={() => void sendMessage()}
disabled={!input.trim() || isLoading}
className="flex h-9 w-9 shrink-0 items-center justify-center rounded-xl bg-brand-600 text-white transition-colors hover:bg-brand-700 disabled:opacity-40 disabled:cursor-not-allowed"
>
<svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5 12h14M12 5l7 7-7 7" />
</svg>
</button>
</div>
</div>
</div>
);
}