claude-desktop/src/lib/components/ChatPanel.svelte

<script lang="ts">
	import { invoke } from '@tauri-apps/api/core';
	import { emit } from '@tauri-apps/api/event';
	import { messages, currentInput, isProcessing, addMessage, currentSessionId, messageToDb, queuedMessage, type Message } from '$lib/stores/app';
	import { marked, type Tokens } from 'marked';
	import { tick, onDestroy, onMount } from 'svelte';
	import { get } from 'svelte/store';
	import CommandPalette from './CommandPalette.svelte';

	// Input-Referenz für Focus-Shortcuts
	let inputTextarea: HTMLTextAreaElement;

	// Custom Renderer für Code-Blöcke mit Wrapper
	const renderer = new marked.Renderer();
	renderer.code = function ({ text, lang }: Tokens.Code): string {
		const language = lang || '';
		const escapedCode = text
			.replace(/&/g, '&amp;')
			.replace(/</g, '&lt;')
			.replace(/>/g, '&gt;');
		return `<div class="code-block-wrapper" data-lang="${language}"><pre><code class="language-${language}">${escapedCode}</code></pre></div>`;
	};

	marked.setOptions({ breaks: true, gfm: true, renderer });

	function renderMarkdown(text: string): string {
		try {
			return marked.parse(text) as string;
		} catch {
			return text;
		}
	}

	// Svelte Action: Copy-Buttons zu Code-Blöcken hinzufügen
	function addCopyButtons(node: HTMLElement) {
		function processCodeBlocks() {
			const wrappers = node.querySelectorAll('.code-block-wrapper:not([data-copy-added])');
			wrappers.forEach((wrapper) => {
				wrapper.setAttribute('data-copy-added', 'true');

				const lang = wrapper.getAttribute('data-lang') || '';
				const codeEl = wrapper.querySelector('code');
				const codeText = codeEl?.textContent || '';

				// Header mit Sprache und Copy-Button erstellen
				const header = document.createElement('div');
				header.className = 'code-header';

				if (lang) {
					const langSpan = document.createElement('span');
					langSpan.className = 'code-lang';
					langSpan.textContent = lang;
					header.appendChild(langSpan);
				}

				const copyBtn = document.createElement('button');
				copyBtn.className = 'copy-btn';
				copyBtn.title = 'Code kopieren';
				copyBtn.innerHTML = '📋';
				copyBtn.onclick = async () => {
					try {
						await navigator.clipboard.writeText(codeText);
						copyBtn.innerHTML = '<span class="copied">✓</span>';
						setTimeout(() => (copyBtn.innerHTML = '📋'), 2000);
					} catch (err) {
						console.error('Kopieren fehlgeschlagen:', err);
					}
				};
				header.appendChild(copyBtn);

				wrapper.insertBefore(header, wrapper.firstChild);
			});
		}

		// Initial verarbeiten
		processCodeBlocks();

		// MutationObserver für dynamische Inhalte (Streaming)
		const observer = new MutationObserver(processCodeBlocks);
		observer.observe(node, { childList: true, subtree: true });

		return {
			destroy() {
				observer.disconnect();
			}
		};
	}

	let messagesContainer: HTMLDivElement;

	// Edit-Modus State
	let editingMessageId: string | null = $state(null);
	let editingContent: string = $state('');

	// Auto-Compacting State
	let lastMessageCount = 0;
	let compactingWarningShown = false;
	let showCompactingDialog = $state(false);
	let estimatedTokens = $state(0);
	const TOKEN_WARNING_THRESHOLD = 40000; // ~40k Token = Warnung zeigen
	const KEEP_LAST_MESSAGES = 30;

	// Voice-Interface State
	let isRecording = $state(false);
	let audioLevel = $state(0);
	let liveTranscript = $state('');
	let mediaRecorder: MediaRecorder | null = null;
	let audioContext: AudioContext | null = null;
	let analyser: AnalyserNode | null = null;
	let audioChunks: Blob[] = [];
	let levelAnimationFrame: number | null = null;

	// Slash-Command Autocomplete State
	let showCommandPalette = $state(false);
	let commandQuery = $state('');
	let commandPaletteRef: CommandPalette | undefined = $state(undefined);

	// Slash-Command Erkennung im Input
	$effect(() => {
		const text = $currentInput;
		if (text.startsWith('/')) {
			showCommandPalette = true;
			commandQuery = text.slice(1);
		} else {
			showCommandPalette = false;
			commandQuery = '';
		}
	});

	// Command auswählen: Text ersetzen
	function handleCommandSelect(cmd: { name: string; description: string; category: string }) {
		if (!cmd.name) {
			// Escape gedrückt — Palette schliessen, Text behalten
			showCommandPalette = false;
			return;
		}
		$currentInput = '/' + cmd.name + ' ';
		showCommandPalette = false;
		// Focus zurück aufs Input
		inputTextarea?.focus();
	}

	// VAD (Voice Activity Detection) — automatisches Stoppen nach Sprechpause
	const VAD_SILENCE_THRESHOLD = 15;     // Pegel unter dem als Stille gilt
	const VAD_SILENCE_DURATION = 1500;    // ms Stille vor Auto-Stopp
	let silenceStartTime: number | null = null;
	let vadEnabled = $state(true);        // VAD ein/aus

	async function scrollToBottom() {
		await tick();
		if (messagesContainer) {
			messagesContainer.scrollTop = messagesContainer.scrollHeight;
		}
	}

	$effect(() => {
		if ($messages.length) scrollToBottom();
	});

	// Bei Session-Wechsel: Compacting-Flag zurücksetzen
	$effect(() => {
		if ($currentSessionId) {
			compactingWarningShown = false;
			showCompactingDialog = false;
		}
	});

	// Token-Schätzung: ~4 Zeichen pro Token
	function estimateTokensForMessages(msgs: Message[]): number {
		return msgs.reduce((total, msg) => total + Math.ceil(msg.content.length / 4), 0);
	}

	// Nachricht in DB speichern
	async function saveMessageToDb(msg: Message) {
		const sessionId = get(currentSessionId);
		if (!sessionId) return;

		try {
			const dbMsg = messageToDb(msg, sessionId);
			await invoke('save_message', { message: dbMsg });
		} catch (err) {
			console.error('Fehler beim Speichern der Nachricht:', err);
		}
	}

	// Neue Nachrichten automatisch speichern + Token-Warnung
	const unsubscribe = messages.subscribe(async (msgs) => {
		if (msgs.length > lastMessageCount && lastMessageCount > 0) {
			// Neue Nachricht(en) hinzugefügt
			const newMessages = msgs.slice(lastMessageCount);
			for (const msg of newMessages) {
				// Nur speichern wenn Nachricht Content hat (nicht die leere Streaming-Nachricht)
				if (msg.content && msg.content.trim()) {
					await saveMessageToDb(msg);
				}
			}
		}

		// Token-Schätzung aktualisieren
		estimatedTokens = estimateTokensForMessages(msgs);

		// Warnung zeigen wenn Token-Schwelle überschritten (einmalig pro Session)
		if (!compactingWarningShown && estimatedTokens > TOKEN_WARNING_THRESHOLD && !$isProcessing) {
			compactingWarningShown = true;
			showCompactingDialog = true;
		}

		lastMessageCount = msgs.length;
	});

	async function performCompacting() {
		const sessionId = get(currentSessionId);
		if (!sessionId) return;

		showCompactingDialog = false;

		try {
			// Zuerst: Kritischen Kontext extrahieren und archivieren
			const currentMessages = get(messages);
			const messagesJson = JSON.stringify(currentMessages.map(m => ({
				role: m.role,
				content: m.content
			})));

			try {
				const extracted = await invoke('extract_context_before_compacting', {
					sessionId,
					messagesJson
				});
				console.log('📦 Kontext extrahiert vor Compacting:', extracted);
			} catch (extractErr) {
				console.warn('Context-Extraction fehlgeschlagen (nicht kritisch):', extractErr);
			}

			// Dann: Compacting durchführen
			const compacted: number = await invoke('compact_session', {
				sessionId,
				keepLast: KEEP_LAST_MESSAGES
			});

			if (compacted > 0) {
				addMessage('system', `📦 Compacting: ${compacted} ältere Nachrichten wurden zusammengefasst. Die letzten ${KEEP_LAST_MESSAGES} bleiben erhalten. Kritischer Kontext wurde archiviert.`);
			}
		} catch (err) {
			console.error('Compacting fehlgeschlagen:', err);
			addMessage('system', `⚠️ Compacting fehlgeschlagen: ${err}`);
		}
	}

	function dismissCompactingDialog() {
		showCompactingDialog = false;
		// Warnung für diese Session nicht erneut zeigen
	}

	// ============ Voice Interface ============

	async function startRecording() {
		try {
			const stream = await navigator.mediaDevices.getUserMedia({ audio: true });

			// Audio-Analyse für Pegel-Anzeige
			audioContext = new AudioContext();
			analyser = audioContext.createAnalyser();
			const source = audioContext.createMediaStreamSource(stream);
			source.connect(analyser);
			analyser.fftSize = 256;

			// Pegel-Animation starten
			updateAudioLevel();

			// MediaRecorder für Aufnahme
			mediaRecorder = new MediaRecorder(stream, { mimeType: 'audio/webm' });
			audioChunks = [];

			mediaRecorder.ondataavailable = (event) => {
				if (event.data.size > 0) {
					audioChunks.push(event.data);
				}
			};

			mediaRecorder.onstop = async () => {
				// Aufnahme beendet — Audio an Whisper senden
				const audioBlob = new Blob(audioChunks, { type: 'audio/webm' });
				await transcribeAudio(audioBlob);

				// Stream stoppen
				stream.getTracks().forEach(track => track.stop());
			};

			mediaRecorder.start(100); // Chunks alle 100ms
			isRecording = true;
			liveTranscript = '';
			silenceStartTime = null; // VAD-Timer zurücksetzen
			console.log('🎤 Aufnahme gestartet' + (vadEnabled ? ' (VAD aktiv)' : ''));
		} catch (err) {
			console.error('Mikrofon-Zugriff fehlgeschlagen:', err);
			addMessage('system', `⚠️ Mikrofon-Zugriff fehlgeschlagen: ${err}`);
		}
	}

	function stopRecording() {
		if (mediaRecorder && mediaRecorder.state !== 'inactive') {
			mediaRecorder.stop();
		}

		// Pegel-Animation stoppen
		if (levelAnimationFrame) {
			cancelAnimationFrame(levelAnimationFrame);
			levelAnimationFrame = null;
		}

		// Audio-Context schließen
		if (audioContext) {
			audioContext.close();
			audioContext = null;
		}

		isRecording = false;
		audioLevel = 0;
		console.log('🎤 Aufnahme gestoppt');
	}

	function updateAudioLevel() {
		if (!analyser || !isRecording) return;

		const dataArray = new Uint8Array(analyser.frequencyBinCount);
		analyser.getByteFrequencyData(dataArray);

		// Durchschnittspegel berechnen
		const average = dataArray.reduce((a, b) => a + b, 0) / dataArray.length;
		audioLevel = Math.min(100, average * 1.5); // Normalisieren auf 0-100

		// VAD: Stille erkennen und nach Pause automatisch stoppen
		if (vadEnabled && audioChunks.length > 0) {
			if (audioLevel < VAD_SILENCE_THRESHOLD) {
				// Stille beginnt oder dauert an
				if (silenceStartTime === null) {
					silenceStartTime = Date.now();
				} else if (Date.now() - silenceStartTime > VAD_SILENCE_DURATION) {
					// Lange genug still — Aufnahme automatisch stoppen
					console.log('🔇 VAD: Stille erkannt, stoppe Aufnahme');
					stopRecording();
					return;
				}
			} else {
				// Sprache erkannt — Stille-Timer zurücksetzen
				silenceStartTime = null;
			}
		}

		levelAnimationFrame = requestAnimationFrame(updateAudioLevel);
	}

	async function transcribeAudio(audioBlob: Blob) {
		liveTranscript = 'Transkribiere...';

		try {
			// Audio als Base64 für Tauri-Command
			const arrayBuffer = await audioBlob.arrayBuffer();
			const base64 = btoa(String.fromCharCode(...new Uint8Array(arrayBuffer)));

			// An Backend senden für Whisper-Transkription
			const transcript: string = await invoke('transcribe_audio', {
				audioBase64: base64,
				format: 'webm'
			});

			if (transcript && transcript.trim()) {
				// Transkript in Input-Feld einfügen
				$currentInput = ($currentInput + ' ' + transcript).trim();
				liveTranscript = '';
				console.log('📝 Transkript:', transcript);
			} else {
				liveTranscript = '';
			}
		} catch (err) {
			console.error('Transkription fehlgeschlagen:', err);
			liveTranscript = `Fehler: ${err}`;
			// Nach 3s ausblenden
			setTimeout(() => { liveTranscript = ''; }, 3000);
		}
	}

	function toggleRecording() {
		if (isRecording) {
			stopRecording();
		} else {
			startRecording();
		}
	}

	onDestroy(() => {
		unsubscribe();
		// Voice-Aufnahme stoppen falls aktiv
		if (isRecording) {
			stopRecording();
		}
	});

	// Globale Keyboard Shortcuts
	function handleGlobalKeydown(event: KeyboardEvent) {
		// Ctrl+K: Focus auf Input
		if (event.ctrlKey && event.key === 'k') {
			event.preventDefault();
			inputTextarea?.focus();
			return;
		}

		// Ctrl+Shift+K: Input leeren und Focus
		if (event.ctrlKey && event.shiftKey && event.key === 'K') {
			event.preventDefault();
			$currentInput = '';
			inputTextarea?.focus();
			return;
		}
	}

	onMount(() => {
		window.addEventListener('keydown', handleGlobalKeydown);

		// Queue-Auto-Dispatch: sobald isProcessing von true auf false wechselt
		// und ein Puffer vorhanden ist, wird er automatisch abgeschickt.
		let lastProcessing = false;
		const unsubProcessing = isProcessing.subscribe((val) => {
			if (lastProcessing && !val) {
				const queued = get(queuedMessage);
				if (queued) {
					$queuedMessage = null;
					dispatchMessage(queued).catch((e) => console.error('Queue-Dispatch fehlgeschlagen:', e));
				}
			}
			lastProcessing = val;
		});

		return () => {
			window.removeEventListener('keydown', handleGlobalKeydown);
			unsubProcessing();
		};
	});

	function cancelQueued() {
		$queuedMessage = null;
	}

	async function sendMessage() {
		const text = $currentInput.trim();
		if (!text) return;

		// Waehrend Claude antwortet: Single-Slot-Puffer statt Doppel-Send.
		// Der Subscriber weiter unten sendet den Puffer automatisch ab, sobald
		// isProcessing von true auf false wechselt.
		if ($isProcessing) {
			$queuedMessage = text;
			$currentInput = '';
			return;
		}

		await dispatchMessage(text);
	}

	// Den eigentlichen Send-Flow ausgelagert, damit er auch fuer die Queue genutzt wird.
	async function dispatchMessage(text: string) {
		// Auto-Session erstellen falls keine aktiv
		let sessionId = get(currentSessionId);
		if (!sessionId) {
			try {
				const title = `Session ${new Date().toLocaleDateString('de-DE')} ${new Date().toLocaleTimeString('de-DE', { hour: '2-digit', minute: '2-digit' })}`;
				const newSession = await invoke<{ id: string }>('create_session', { title });
				sessionId = newSession.id;
				$currentSessionId = sessionId;
				console.log('📂 Auto-Session erstellt:', title);
				// SessionList benachrichtigen
				await emit('session-created', { id: sessionId });
			} catch (err) {
				console.error('Session-Erstellung fehlgeschlagen:', err);
				addMessage('system', `Fehler: Konnte keine Session erstellen - ${err}`);
				return;
			}
		}

		// Nachricht hinzufügen (wird durch den Store-Subscriber gespeichert)
		const msgId = crypto.randomUUID();
		const msg: Message = {
			id: msgId,
			role: 'user',
			content: text,
			timestamp: new Date(),
		};
		messages.update((msgs) => [...msgs, msg]);

		// Sofort speichern (nicht auf Subscriber warten)
		await saveMessageToDb(msg);

		$currentInput = '';
		$isProcessing = true;

		try {
			await invoke('send_message', { message: text });
		} catch (err) {
			console.error('Fehler beim Senden:', err);
			addMessage('system', `Fehler: ${err}`);
			$isProcessing = false;
		}
	}

	function handleKeydown(event: KeyboardEvent) {
		// CommandPalette hat Vorrang bei Tastatur-Events
		if (showCommandPalette && commandPaletteRef) {
			const handled = commandPaletteRef.handleKey(event);
			if (handled) return;
		}

		// Ctrl+Enter: Immer senden (auch bei mehrzeiligem Text)
		if (event.key === 'Enter' && event.ctrlKey) {
			event.preventDefault();
			sendMessage();
			return;
		}
		// Enter (ohne Shift): Senden
		if (event.key === 'Enter' && !event.shiftKey) {
			event.preventDefault();
			sendMessage();
		}
	}

	// Edit-Funktionen
	function startEdit(message: Message) {
		editingMessageId = message.id;
		editingContent = message.content;
	}

	function cancelEdit() {
		editingMessageId = null;
		editingContent = '';
	}

	async function confirmEdit() {
		if (!editingMessageId || !editingContent.trim()) return;

		const msgIndex = $messages.findIndex((m) => m.id === editingMessageId);
		if (msgIndex === -1) return;

		const updatedMessage = {
			...$messages[msgIndex],
			content: editingContent.trim(),
			timestamp: new Date()
		};

		// Nachricht aktualisieren und alle folgenden entfernen
		// (da sie auf der alten Nachricht basieren)
		messages.update((msgs) => {
			const newMsgs = [...msgs.slice(0, msgIndex), updatedMessage];
			return newMsgs;
		});

		// Nachricht in DB aktualisieren
		await saveMessageToDb(updatedMessage);

		// Edit-Modus beenden
		const newContent = editingContent.trim();
		editingMessageId = null;
		editingContent = '';

		// Nachricht neu an Claude senden
		$isProcessing = true;
		try {
			await invoke('send_message', { message: newContent });
		} catch (err) {
			console.error('Fehler beim Senden:', err);
			addMessage('system', `Fehler: ${err}`);
			$isProcessing = false;
		}
	}

	function handleEditKeydown(event: KeyboardEvent) {
		if (event.key === 'Enter' && !event.shiftKey) {
			event.preventDefault();
			confirmEdit();
		} else if (event.key === 'Escape') {
			cancelEdit();
		}
	}

	// Regenerate: Antwort neu generieren
	async function regenerateResponse(assistantMsgIndex: number) {
		if ($isProcessing) return;

		// Vorherige User-Nachricht finden
		let userMsg: Message | null = null;
		for (let i = assistantMsgIndex - 1; i >= 0; i--) {
			if ($messages[i].role === 'user') {
				userMsg = $messages[i];
				break;
			}
		}

		if (!userMsg) {
			console.error('Keine User-Nachricht zum Regenerieren gefunden');
			return;
		}

		// Alle Nachrichten ab der Assistant-Nachricht entfernen
		messages.update((msgs) => msgs.slice(0, assistantMsgIndex));

		// User-Nachricht erneut senden
		$isProcessing = true;
		try {
			await invoke('send_message', { message: userMsg.content });
		} catch (err) {
			console.error('Fehler beim Regenerieren:', err);
			addMessage('system', `Fehler: ${err}`);
			$isProcessing = false;
		}
	}

	// Prüfen ob eine Nachricht die letzte Assistant-Nachricht ist
	function isLastAssistantMessage(index: number): boolean {
		// Finde die letzte Assistant-Nachricht
		for (let i = $messages.length - 1; i >= 0; i--) {
			if ($messages[i].role === 'assistant' && $messages[i].content) {
				return i === index;
			}
		}
		return false;
	}

	// "Das merken" - Speichern in Wissensbasis
	let rememberDialogOpen = $state(false);
	let rememberContent = $state('');
	let rememberEntry = $state({
		category: 'pattern',
		title: '',
		tags: '',
		priority: 2,
	});
	let rememberSaving = $state(false);
	let rememberError = $state('');

	const knowledgeCategories = [
		{ id: 'dolibarr', label: 'Dolibarr' },
		{ id: 'fints', label: 'FinTS/Banking' },
		{ id: 'pattern', label: 'Pattern/Code' },
		{ id: 'projekt', label: 'Projekt' },
		{ id: 'setup', label: 'Setup/Config' },
		{ id: 'ids', label: 'IDs/Referenzen' },
	];

	let copyFeedback = $state<string | null>(null);

	async function copyMessage(message: Message) {
		try {
			await navigator.clipboard.writeText(message.content);
			copyFeedback = message.id;
			setTimeout(() => {
				if (copyFeedback === message.id) copyFeedback = null;
			}, 1500);
		} catch (err) {
			console.error('Kopieren fehlgeschlagen:', err);
		}
	}

	function openRememberDialog(message: Message) {
		rememberContent = message.content;
		rememberEntry = {
			category: 'pattern',
			title: '',
			tags: '',
			priority: 2,
		};
		rememberError = '';
		rememberDialogOpen = true;
	}

	function closeRememberDialog() {
		rememberDialogOpen = false;
		rememberContent = '';
	}

	async function saveToKnowledge() {
		if (!rememberEntry.title.trim() || !rememberContent.trim()) {
			rememberError = 'Titel und Inhalt sind erforderlich';
			return;
		}

		rememberSaving = true;
		rememberError = '';

		try {
			await invoke('save_knowledge', {
				entry: {
					category: rememberEntry.category,
					title: rememberEntry.title.trim(),
					content: rememberContent.trim(),
					tags: rememberEntry.tags.trim() || null,
					priority: rememberEntry.priority,
					status: 'active',
					source: 'chat',
					related_ids: null,
				}
			});
			closeRememberDialog();
		} catch (err) {
			rememberError = `Fehler: ${err}`;
		} finally {
			rememberSaving = false;
		}
	}
</script>

<div class="chat-panel">
	<div class="chat-header">
		<h2>💬 Chat</h2>
		<div class="header-stats">
			<span class="msg-count">{$messages.length} Nachrichten</span>
			<span class="token-count" class:warning={estimatedTokens > 20000} class:danger={estimatedTokens > TOKEN_WARNING_THRESHOLD}>
				~{(estimatedTokens / 1000).toFixed(1)}k Token
			</span>
		</div>
	</div>

	<div class="chat-messages" bind:this={messagesContainer} use:addCopyButtons>
		{#if $messages.length === 0}
			<div class="empty-state">
				<div class="empty-icon">🤖</div>
				<p>Starte eine Konversation mit Claude.</p>
				<p class="hint">Enter/Ctrl+Enter = Senden, Shift+Enter = Neue Zeile, Ctrl+K = Focus, Escape = Stopp</p>
			</div>
		{:else}
			{#each $messages as message, index}
				<div class="message" class:user={message.role === 'user'} class:assistant={message.role === 'assistant'} class:system={message.role === 'system'} class:editing={editingMessageId === message.id}>
					<div class="message-header">
						<span class="message-role">
							{#if message.role === 'user'}
								👤 Du
							{:else if message.role === 'assistant'}
								🤖 {#if message.model}{message.model.replace('claude-', '').replace(/-\d{8}$/, '').replace(/(\D)-(\d)/g, '$1 $2').replace(/(\d)-(\d)/g, '$1.$2').replace(/\b[a-z]/g, c => c.toUpperCase())}{:else}Claude{/if}
							{:else}
								⚙️ System
							{/if}
						</span>
						<div class="message-actions">
							{#if message.role === 'user' && !$isProcessing && editingMessageId !== message.id}
								<button class="action-btn" onclick={() => startEdit(message)} title="Bearbeiten">✏️</button>
							{/if}
							{#if message.role === 'assistant' && !$isProcessing && isLastAssistantMessage(index) && message.content}
								<button class="action-btn" onclick={() => regenerateResponse(index)} title="Antwort neu generieren">🔄</button>
							{/if}
							{#if message.content && message.role !== 'system'}
								<button class="action-btn" onclick={() => copyMessage(message)} title="Nachricht kopieren">
								{copyFeedback === message.id ? '✓' : '📋'}
							</button>
								<button class="action-btn" onclick={() => openRememberDialog(message)} title="Das merken">💡</button>
							{/if}
							<span class="message-time">
								{message.timestamp.toLocaleTimeString('de-DE', { hour: '2-digit', minute: '2-digit' })}
							</span>
						</div>
					</div>
					<div class="message-content">
						{#if editingMessageId === message.id}
							<textarea
								class="edit-textarea"
								bind:value={editingContent}
								onkeydown={handleEditKeydown}
								rows="3"
							></textarea>
							<div class="edit-actions">
								<button class="edit-btn cancel" onclick={cancelEdit}>Abbrechen</button>
								<button class="edit-btn confirm" onclick={confirmEdit} disabled={!editingContent.trim()}>
									Speichern & Senden
								</button>
							</div>
						{:else if message.role === 'assistant'}
							{#if message.content}
								{@html renderMarkdown(message.content)}
							{:else if $isProcessing}
								<span class="typing">
									<span class="dot"></span>
									<span class="dot"></span>
									<span class="dot"></span>
								</span>
							{/if}
						{:else}
							{message.content}
						{/if}
					</div>
				</div>
			{/each}
		{/if}

		{#if $isProcessing}
			{@const lastMsg = $messages.at(-1)}
			{#if !lastMsg || lastMsg.role !== 'assistant'}
				<!-- Nur zeigen wenn noch gar keine assistant-message da ist -->
				<div class="message assistant typing-msg">
					<div class="message-header">
						<span class="message-role">🤖 Claude</span>
					</div>
					<div class="message-content typing">
						<span class="dot"></span>
						<span class="dot"></span>
						<span class="dot"></span>
					</div>
				</div>
			{/if}
		{/if}
	</div>

	<div class="chat-input">
		<CommandPalette
			bind:this={commandPaletteRef}
			query={commandQuery}
			visible={showCommandPalette}
			onSelect={handleCommandSelect}
		/>
		{#if liveTranscript}
			<div class="live-transcript">
				<span class="transcript-icon">🎤</span>
				<span class="transcript-text">{liveTranscript}</span>
			</div>
		{/if}
		{#if $queuedMessage}
			<div class="queued-pill" title="Wird gesendet sobald Claude die aktuelle Antwort fertig hat">
				<span class="queued-icon">📬</span>
				<span class="queued-text">Nachricht wartet: „{$queuedMessage.slice(0, 80)}{$queuedMessage.length > 80 ? '…' : ''}"</span>
				<button class="queued-cancel" onclick={cancelQueued} aria-label="Wartende Nachricht verwerfen">✕</button>
			</div>
		{/if}
		<textarea
			bind:this={inputTextarea}
			bind:value={$currentInput}
			onkeydown={handleKeydown}
			placeholder={$isProcessing ? 'Nachricht wird nach aktueller Antwort gesendet...' : 'Nachricht eingeben... (Ctrl+K = Focus, Ctrl+Enter = Senden)'}
			disabled={isRecording}
			rows="3"
		></textarea>
		<div class="input-buttons">
			<button
				class="mic-button"
				class:recording={isRecording}
				onclick={toggleRecording}
				disabled={$isProcessing}
				title={isRecording ? 'Aufnahme stoppen' : 'Spracheingabe starten'}
			>
				{#if isRecording}
					<span class="mic-icon recording">⏹</span>
					<div class="audio-level" style="height: {audioLevel}%"></div>
				{:else}
					<span class="mic-icon">🎤</span>
				{/if}
			</button>
			<button
				class="send-button"
				onclick={sendMessage}
				disabled={!$currentInput.trim() || isRecording}
			>
				{#if $isProcessing}
					⏳
				{:else}
					➤
				{/if}
			</button>
		</div>
	</div>
</div>

<!-- "Das merken" Dialog -->
{#if rememberDialogOpen}
	<div class="modal-backdrop" onclick={closeRememberDialog}>
		<div class="modal-dialog" onclick={(e) => e.stopPropagation()}>
			<div class="modal-header">
				<h3>💡 Das merken</h3>
				<button class="close-btn" onclick={closeRememberDialog}>✕</button>
			</div>
			<div class="modal-body">
				<div class="form-group">
					<label for="rem-title">Titel *</label>
					<input
						type="text"
						id="rem-title"
						bind:value={rememberEntry.title}
						placeholder="Kurze Beschreibung der Erkenntnis"
					/>
				</div>

				<div class="form-row">
					<div class="form-group">
						<label for="rem-category">Kategorie</label>
						<select id="rem-category" bind:value={rememberEntry.category}>
							{#each knowledgeCategories as cat}
								<option value={cat.id}>{cat.label}</option>
							{/each}
						</select>
					</div>
					<div class="form-group">
						<label for="rem-priority">Priorität</label>
						<select id="rem-priority" bind:value={rememberEntry.priority}>
							<option value={1}>1 - Kritisch</option>
							<option value={2}>2 - Wichtig</option>
							<option value={3}>3 - Normal</option>
							<option value={4}>4 - Niedrig</option>
						</select>
					</div>
				</div>

				<div class="form-group">
					<label for="rem-tags">Tags (kommagetrennt)</label>
					<input
						type="text"
						id="rem-tags"
						bind:value={rememberEntry.tags}
						placeholder="z.B. rust, tauri, async"
					/>
				</div>

				<div class="form-group">
					<label for="rem-content">Inhalt *</label>
					<textarea
						id="rem-content"
						bind:value={rememberContent}
						rows="8"
						placeholder="Der zu merkende Inhalt..."
					></textarea>
				</div>

				{#if rememberError}
					<div class="form-error">{rememberError}</div>
				{/if}
			</div>
			<div class="modal-footer">
				<button class="btn-secondary" onclick={closeRememberDialog}>Abbrechen</button>
				<button
					class="btn-primary"
					onclick={saveToKnowledge}
					disabled={rememberSaving || !rememberEntry.title.trim()}
				>
					{rememberSaving ? 'Speichern...' : 'In Wissensbasis speichern'}
				</button>
			</div>
		</div>
	</div>
{/if}

<!-- Compacting-Warnung Dialog -->
{#if showCompactingDialog}
	<div class="modal-backdrop" onclick={dismissCompactingDialog}>
		<div class="modal-dialog compact-dialog" onclick={(e) => e.stopPropagation()}>
			<div class="modal-header warning">
				<h3>⚠️ Hohe Token-Anzahl</h3>
				<button class="close-btn" onclick={dismissCompactingDialog}>✕</button>
			</div>
			<div class="modal-body">
				<p class="warning-text">
					Diese Konversation hat bereits <strong>~{(estimatedTokens / 1000).toFixed(0)}k Token</strong>.
				</p>
				<p>
					Um Kosten zu sparen und das Context-Limit nicht zu überschreiten, kannst du ältere Nachrichten zusammenfassen lassen.
				</p>
				<div class="compact-info">
					<div class="info-row">
						<span>Aktuelle Nachrichten:</span>
						<strong>{$messages.length}</strong>
					</div>
					<div class="info-row">
						<span>Nach Compacting behalten:</span>
						<strong>{KEEP_LAST_MESSAGES} neueste</strong>
					</div>
					<div class="info-row">
						<span>Geschätzte Token danach:</span>
						<strong>~{Math.ceil(estimatedTokens * (KEEP_LAST_MESSAGES / $messages.length) / 1000)}k</strong>
					</div>
				</div>
				<p class="hint">
					Die älteren Nachrichten werden zu einer Zusammenfassung komprimiert, bleiben aber in der Datenbank erhalten.
				</p>
			</div>
			<div class="modal-footer">
				<button class="btn-secondary" onclick={dismissCompactingDialog}>Später</button>
				<button class="btn-primary" onclick={performCompacting}>
					📦 Jetzt kompaktieren
				</button>
			</div>
		</div>
	</div>
{/if}

<style>
	.chat-panel {
		display: flex;
		flex-direction: column;
		height: 100%;
	}

	.chat-header {
		display: flex;
		justify-content: space-between;
		align-items: center;
		padding: var(--spacing-sm) var(--spacing-md);
		background: var(--bg-secondary);
		border-bottom: 1px solid var(--bg-tertiary);
	}

	.chat-header h2 {
		font-size: 0.875rem;
		font-weight: 600;
	}

	.header-stats {
		display: flex;
		gap: var(--spacing-sm);
		align-items: center;
	}

	.msg-count {
		font-size: 0.625rem;
		color: var(--text-secondary);
	}

	.token-count {
		font-size: 0.625rem;
		padding: 0.15rem 0.4rem;
		border-radius: var(--radius-sm);
		background: var(--bg-tertiary);
		color: var(--success);
		font-weight: 500;
	}

	.token-count.warning {
		background: rgba(234, 179, 8, 0.15);
		color: #eab308;
	}

	.token-count.danger {
		background: rgba(239, 68, 68, 0.15);
		color: var(--error);
	}

	.chat-messages {
		flex: 1;
		overflow-y: auto;
		padding: var(--spacing-md);
		display: flex;
		flex-direction: column;
		gap: var(--spacing-md);
	}

	.empty-state {
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		height: 100%;
		color: var(--text-secondary);
		text-align: center;
	}

	.empty-icon {
		font-size: 3rem;
		margin-bottom: var(--spacing-md);
		opacity: 0.5;
	}

	.empty-state .hint {
		font-size: 0.75rem;
		margin-top: var(--spacing-sm);
		color: var(--text-secondary);
		opacity: 0.7;
	}

	.message {
		padding: var(--spacing-sm) var(--spacing-md);
		border-radius: var(--radius-md);
		background: var(--bg-secondary);
		max-width: 85%;
	}

	.message.user {
		background: var(--bg-tertiary);
		margin-left: auto;
	}

	.message.assistant {
		margin-right: auto;
	}

	.message.system {
		background: rgba(233, 69, 96, 0.1);
		border-left: 3px solid var(--accent);
		max-width: 100%;
	}

	.message-header {
		display: flex;
		justify-content: space-between;
		align-items: center;
		margin-bottom: var(--spacing-xs);
	}

	.message-role {
		font-size: 0.7rem;
		font-weight: 600;
	}

	.message-actions {
		display: flex;
		align-items: center;
		gap: var(--spacing-xs);
	}

	.action-btn {
		padding: 0.15rem 0.3rem;
		background: transparent;
		border: none;
		border-radius: var(--radius-sm);
		cursor: pointer;
		opacity: 0;
		transition: all 0.15s ease;
		font-size: 0.7rem;
	}

	.message:hover .action-btn {
		opacity: 0.6;
	}

	.action-btn:hover {
		opacity: 1 !important;
		background: var(--bg-tertiary);
	}

	.message-time {
		font-size: 0.6rem;
		color: var(--text-secondary);
	}

	/* Edit-Modus */
	.message.editing {
		border: 1px solid var(--accent);
	}

	.edit-textarea {
		width: 100%;
		min-height: 60px;
		padding: var(--spacing-sm);
		font-size: 0.85rem;
		line-height: 1.5;
		background: var(--bg-primary);
		border: 1px solid var(--border);
		border-radius: var(--radius-sm);
		resize: vertical;
		font-family: inherit;
	}

	.edit-textarea:focus {
		outline: none;
		border-color: var(--accent);
	}

	.edit-actions {
		display: flex;
		justify-content: flex-end;
		gap: var(--spacing-sm);
		margin-top: var(--spacing-xs);
	}

	.edit-btn {
		padding: 0.3rem 0.75rem;
		font-size: 0.75rem;
		border-radius: var(--radius-sm);
		cursor: pointer;
		transition: all 0.15s ease;
	}

	.edit-btn.cancel {
		background: transparent;
		border: 1px solid var(--border);
		color: var(--text-secondary);
	}

	.edit-btn.cancel:hover {
		background: var(--bg-tertiary);
		color: var(--text-primary);
	}

	.edit-btn.confirm {
		background: var(--accent);
		border: 1px solid var(--accent);
		color: white;
	}

	.edit-btn.confirm:hover:not(:disabled) {
		background: var(--accent-hover);
	}

	.edit-btn.confirm:disabled {
		opacity: 0.5;
		cursor: not-allowed;
	}

	.message-content {
		font-size: 0.85rem;
		line-height: 1.6;
	}

	/* Markdown-Styles innerhalb von Nachrichten */
	.message-content :global(p) {
		margin: 0.3em 0;
	}

	.message-content :global(p:first-child) {
		margin-top: 0;
	}

	.message-content :global(p:last-child) {
		margin-bottom: 0;
	}

	.message-content :global(code) {
		font-family: var(--font-mono);
		font-size: 0.8rem;
		padding: 0.1em 0.35em;
		background: var(--bg-tertiary);
		border-radius: var(--radius-sm);
	}

	/* Code-Block mit Header und Copy-Button */
	.message-content :global(.code-block-wrapper) {
		margin: 0.5em 0;
		border-radius: var(--radius-md);
		background: var(--bg-tertiary);
		overflow: hidden;
	}

	.message-content :global(.code-header) {
		display: flex;
		justify-content: space-between;
		align-items: center;
		padding: 0.3rem 0.75rem;
		background: rgba(0, 0, 0, 0.15);
		font-size: 0.65rem;
		gap: 0.5rem;
	}

	.message-content :global(.code-lang) {
		color: var(--text-secondary);
		font-family: var(--font-mono);
		text-transform: uppercase;
		letter-spacing: 0.5px;
	}

	.message-content :global(.copy-btn) {
		margin-left: auto;
		padding: 0.2rem 0.5rem;
		background: transparent;
		border: 1px solid var(--border);
		border-radius: var(--radius-sm);
		color: var(--text-secondary);
		font-size: 0.7rem;
		cursor: pointer;
		transition: all 0.15s ease;
	}

	.message-content :global(.copy-btn:hover) {
		background: var(--bg-secondary);
		color: var(--text-primary);
		border-color: var(--text-secondary);
	}

	.message-content :global(.copy-btn .copied) {
		color: var(--success);
	}

	.message-content :global(.code-block-wrapper pre) {
		margin: 0;
		padding: var(--spacing-sm) var(--spacing-md);
		overflow-x: auto;
		font-size: 0.75rem;
		line-height: 1.5;
	}

	.message-content :global(.code-block-wrapper pre code) {
		padding: 0;
		background: none;
	}

	/* Fallback für inline pre (ohne wrapper) */
	.message-content :global(pre:not(.code-block-wrapper pre)) {
		margin: 0.5em 0;
		padding: var(--spacing-sm) var(--spacing-md);
		background: var(--bg-tertiary);
		border-radius: var(--radius-md);
		overflow-x: auto;
		font-size: 0.75rem;
		line-height: 1.4;
	}

	.message-content :global(pre:not(.code-block-wrapper pre) code) {
		padding: 0;
		background: none;
	}

	.message-content :global(ul), .message-content :global(ol) {
		margin: 0.3em 0;
		padding-left: 1.5em;
	}

	.message-content :global(li) {
		margin: 0.15em 0;
	}

	.message-content :global(strong) {
		color: var(--text-primary);
	}

	.message-content :global(a) {
		color: var(--accent);
		text-decoration: none;
	}

	.message-content :global(a:hover) {
		text-decoration: underline;
	}

	.message-content :global(blockquote) {
		border-left: 3px solid var(--bg-tertiary);
		padding-left: var(--spacing-sm);
		margin: 0.3em 0;
		color: var(--text-secondary);
	}

	.message-content :global(h1), .message-content :global(h2), .message-content :global(h3) {
		margin: 0.5em 0 0.2em;
		font-size: 0.9rem;
	}

	.message-content :global(table) {
		border-collapse: collapse;
		margin: 0.3em 0;
		font-size: 0.75rem;
		width: 100%;
	}

	.message-content :global(th), .message-content :global(td) {
		border: 1px solid var(--bg-tertiary);
		padding: 0.3em 0.5em;
	}

	.message-content :global(th) {
		background: var(--bg-secondary);
		font-weight: 600;
	}

	/* Typing-Animation */
	.typing {
		display: flex;
		gap: 4px;
	}

	.dot {
		width: 8px;
		height: 8px;
		background: var(--text-secondary);
		border-radius: 50%;
		animation: bounce 1.4s infinite ease-in-out;
	}

	.dot:nth-child(1) { animation-delay: -0.32s; }
	.dot:nth-child(2) { animation-delay: -0.16s; }

	@keyframes bounce {
		0%, 80%, 100% { transform: scale(0); }
		40% { transform: scale(1); }
	}

	/* Input-Bereich */
	.chat-input {
		display: flex;
		gap: var(--spacing-sm);
		padding: var(--spacing-sm) var(--spacing-md);
		background: var(--bg-secondary);
		border-top: 1px solid var(--bg-tertiary);
		position: relative;
	}

	.chat-input textarea {
		flex: 1;
		resize: none;
		font-size: 0.85rem;
		line-height: 1.4;
	}

	.send-button {
		width: 48px;
		height: 48px;
		display: flex;
		align-items: center;
		justify-content: center;
		background: var(--accent);
		color: white;
		font-size: 1.2rem;
		font-weight: 600;
		border-radius: var(--radius-md);
		transition: all 0.2s ease;
		align-self: flex-end;
	}

	.send-button:hover:not(:disabled) {
		background: var(--accent-hover);
		transform: scale(1.05);
	}

	.send-button:disabled {
		background: var(--bg-tertiary);
		color: var(--text-secondary);
		cursor: not-allowed;
		transform: none;
	}

	/* Voice Interface */
	.input-buttons {
		display: flex;
		flex-direction: column;
		gap: var(--spacing-xs);
	}

	.mic-button {
		width: 48px;
		height: 48px;
		display: flex;
		align-items: center;
		justify-content: center;
		background: var(--bg-secondary);
		border: 1px solid var(--border);
		border-radius: var(--radius-md);
		font-size: 1.25rem;
		cursor: pointer;
		transition: all 0.2s ease;
		position: relative;
		overflow: hidden;
	}

	.mic-button:hover:not(:disabled) {
		background: var(--bg-tertiary);
		border-color: var(--accent);
	}

	.mic-button.recording {
		background: rgba(239, 68, 68, 0.15);
		border-color: #ef4444;
		animation: pulse-recording 1.5s ease-in-out infinite;
	}

	@keyframes pulse-recording {
		0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
		50% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
	}

	.mic-icon {
		z-index: 1;
	}

	.mic-icon.recording {
		color: #ef4444;
	}

	.audio-level {
		position: absolute;
		bottom: 0;
		left: 0;
		right: 0;
		background: linear-gradient(to top, rgba(239, 68, 68, 0.4), rgba(239, 68, 68, 0.1));
		transition: height 0.05s ease-out;
		pointer-events: none;
	}

	.mic-button:disabled {
		opacity: 0.5;
		cursor: not-allowed;
	}

	.live-transcript {
		position: absolute;
		top: -32px;
		left: 0;
		right: 0;
		display: flex;
		align-items: center;
		gap: var(--spacing-xs);
		padding: var(--spacing-xs) var(--spacing-sm);
		background: rgba(239, 68, 68, 0.1);
		border: 1px solid rgba(239, 68, 68, 0.3);
		border-radius: var(--radius-sm);
		font-size: 0.75rem;
		color: #ef4444;
	}

	.queued-pill {
		display: flex;
		align-items: center;
		gap: var(--spacing-xs);
		padding: var(--spacing-xs) var(--spacing-sm);
		margin-bottom: var(--spacing-xs);
		background: rgba(96, 165, 250, 0.08);
		border: 1px solid rgba(96, 165, 250, 0.25);
		border-radius: var(--radius-sm);
		font-size: 0.75rem;
		color: #93c5fd;
	}

	.queued-icon {
		flex-shrink: 0;
	}

	.queued-text {
		flex: 1;
		overflow: hidden;
		text-overflow: ellipsis;
		white-space: nowrap;
	}

	.queued-cancel {
		background: none;
		border: none;
		color: inherit;
		cursor: pointer;
		font-size: 0.9rem;
		padding: 0 4px;
		opacity: 0.7;
	}

	.queued-cancel:hover {
		opacity: 1;
	}

	.transcript-icon {
		animation: pulse 1s ease-in-out infinite;
	}

	@keyframes pulse {
		0%, 100% { opacity: 1; }
		50% { opacity: 0.5; }
	}

	.transcript-text {
		flex: 1;
		overflow: hidden;
		text-overflow: ellipsis;
		white-space: nowrap;
	}

	/* Modal Styles */
	.modal-backdrop {
		position: fixed;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
		background: rgba(0, 0, 0, 0.6);
		display: flex;
		align-items: center;
		justify-content: center;
		z-index: 1000;
	}

	.modal-dialog {
		background: var(--bg-primary);
		border-radius: var(--radius-md);
		width: 90%;
		max-width: 500px;
		max-height: 85vh;
		overflow: hidden;
		display: flex;
		flex-direction: column;
		box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
	}

	.modal-header {
		display: flex;
		justify-content: space-between;
		align-items: center;
		padding: var(--spacing-md);
		background: var(--bg-secondary);
		border-bottom: 1px solid var(--border);
	}

	.modal-header h3 {
		margin: 0;
		font-size: 0.9rem;
	}

	.close-btn {
		width: 28px;
		height: 28px;
		display: flex;
		align-items: center;
		justify-content: center;
		background: transparent;
		border: none;
		border-radius: var(--radius-sm);
		cursor: pointer;
		color: var(--text-secondary);
		font-size: 1rem;
	}

	.close-btn:hover {
		background: var(--bg-tertiary);
		color: var(--text-primary);
	}

	.modal-body {
		padding: var(--spacing-md);
		overflow-y: auto;
		flex: 1;
	}

	.form-group {
		margin-bottom: var(--spacing-sm);
	}

	.form-group label {
		display: block;
		font-size: 0.75rem;
		font-weight: 500;
		color: var(--text-secondary);
		margin-bottom: 0.25rem;
	}

	.form-group input,
	.form-group select,
	.form-group textarea {
		width: 100%;
		padding: 0.5rem;
		font-size: 0.85rem;
		background: var(--bg-secondary);
		border: 1px solid var(--border);
		border-radius: var(--radius-sm);
		color: var(--text-primary);
	}

	.form-group textarea {
		resize: vertical;
		font-family: var(--font-mono);
		font-size: 0.75rem;
		line-height: 1.5;
	}

	.form-group input:focus,
	.form-group select:focus,
	.form-group textarea:focus {
		outline: none;
		border-color: var(--accent);
	}

	.form-row {
		display: grid;
		grid-template-columns: 1fr 1fr;
		gap: var(--spacing-sm);
	}

	.form-error {
		padding: 0.5rem;
		background: rgba(239, 68, 68, 0.1);
		border: 1px solid var(--error);
		border-radius: var(--radius-sm);
		color: var(--error);
		font-size: 0.75rem;
		margin-top: var(--spacing-sm);
	}

	.modal-footer {
		display: flex;
		justify-content: flex-end;
		gap: var(--spacing-sm);
		padding: var(--spacing-md);
		background: var(--bg-secondary);
		border-top: 1px solid var(--border);
	}

	.btn-secondary {
		padding: 0.5rem 1rem;
		font-size: 0.8rem;
		background: transparent;
		border: 1px solid var(--border);
		border-radius: var(--radius-sm);
		color: var(--text-secondary);
		cursor: pointer;
	}

	.btn-secondary:hover {
		background: var(--bg-tertiary);
		color: var(--text-primary);
	}

	.btn-primary {
		padding: 0.5rem 1rem;
		font-size: 0.8rem;
		background: var(--accent);
		border: 1px solid var(--accent);
		border-radius: var(--radius-sm);
		color: white;
		cursor: pointer;
	}

	.btn-primary:hover:not(:disabled) {
		background: var(--accent-hover);
	}

	.btn-primary:disabled {
		opacity: 0.5;
		cursor: not-allowed;
	}

	/* Compacting Dialog */
	.compact-dialog {
		max-width: 420px;
	}

	.modal-header.warning {
		background: rgba(234, 179, 8, 0.15);
		border-bottom-color: rgba(234, 179, 8, 0.3);
	}

	.modal-header.warning h3 {
		color: #eab308;
	}

	.warning-text {
		font-size: 1rem;
		margin-bottom: var(--spacing-sm);
	}

	.compact-info {
		background: var(--bg-secondary);
		border-radius: var(--radius-sm);
		padding: var(--spacing-sm);
		margin: var(--spacing-sm) 0;
	}

	.info-row {
		display: flex;
		justify-content: space-between;
		padding: 0.25rem 0;
		font-size: 0.8rem;
	}

	.info-row span {
		color: var(--text-secondary);
	}

	.modal-body .hint {
		font-size: 0.75rem;
		color: var(--text-secondary);
		margin-top: var(--spacing-sm);
	}
</style>