From c9f3d8ae47e744a454fcff6d68b3a3a2c18a3094 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Wed, 28 Jan 2026 23:54:24 +0000
Subject: [PATCH] feat(matrix): add Phase 2 features

File Upload & Media:
- Send images, videos, audio, and files
- Display media in timeline with thumbnails
- Download links for files
- Upload progress indicator

Message Actions:
- Reply to messages with quote preview
- Edit own text messages
- Delete (redact) own messages
- React with emoji (store only, UI pending)

Room Management:
- Create room dialog (DM or group)
- User search and invite
- Room settings panel with member list
- Leave room functionality

UI Improvements:
- German translations
- Message hover actions
- Reply/Edit preview in input
- Date separators in timeline

https://claude.ai/code/session_01RUrt2qN1D3nVh9HcGpwoby
---
 .../components/chat/CreateRoomDialog.svelte   | 285 +++++++++++++++++
 .../src/lib/components/chat/Message.svelte    | 169 +++++++++-
 .../lib/components/chat/MessageInput.svelte   | 254 ++++++++++++---
 .../src/lib/components/chat/RoomHeader.svelte |   5 +-
 .../src/lib/components/chat/RoomList.svelte   |  10 +-
 .../components/chat/RoomSettingsPanel.svelte  | 225 +++++++++++++
 .../src/lib/components/chat/Timeline.svelte   |  11 +-
 .../apps/web/src/lib/components/chat/index.ts |   2 +
 .../apps/web/src/lib/matrix/store.svelte.ts   | 298 +++++++++++++++++-
 apps/matrix/apps/web/src/lib/matrix/types.ts  |  17 +
 .../web/src/routes/(app)/chat/+page.svelte    | 119 +++++--
 11 files changed, 1304 insertions(+), 91 deletions(-)
 create mode 100644 apps/matrix/apps/web/src/lib/components/chat/CreateRoomDialog.svelte
 create mode 100644 apps/matrix/apps/web/src/lib/components/chat/RoomSettingsPanel.svelte

diff --git a/apps/matrix/apps/web/src/lib/components/chat/CreateRoomDialog.svelte b/apps/matrix/apps/web/src/lib/components/chat/CreateRoomDialog.svelte
new file mode 100644
index 000000000..ea6411966
--- /dev/null
+++ b/apps/matrix/apps/web/src/lib/components/chat/CreateRoomDialog.svelte
@@ -0,0 +1,285 @@
+<script lang="ts">
+	import { matrixStore } from '$lib/matrix';
+	import { X, Users, MessageCircle, Lock, Globe, Loader2 } from 'lucide-svelte';
+
+	interface Props {
+		open: boolean;
+		onClose: () => void;
+		onCreated?: (roomId: string) => void;
+	}
+
+	let { open, onClose, onCreated }: Props = $props();
+
+	let name = $state('');
+	let topic = $state('');
+	let isPrivate = $state(true);
+	let isDirect = $state(false);
+	let inviteUserId = $state('');
+	let loading = $state(false);
+	let error = $state<string | null>(null);
+
+	// User search
+	let searchQuery = $state('');
+	let searchResults = $state<{ userId: string; displayName?: string; avatarUrl?: string }[]>([]);
+	let selectedUsers = $state<{ userId: string; displayName?: string }[]>([]);
+	let searching = $state(false);
+	let searchTimeout: ReturnType<typeof setTimeout>;
+
+	function handleSearchInput() {
+		clearTimeout(searchTimeout);
+		if (searchQuery.trim().length < 2) {
+			searchResults = [];
+			return;
+		}
+
+		searchTimeout = setTimeout(async () => {
+			searching = true;
+			searchResults = await matrixStore.searchUsers(searchQuery);
+			searching = false;
+		}, 300);
+	}
+
+	function selectUser(user: { userId: string; displayName?: string }) {
+		if (!selectedUsers.find((u) => u.userId === user.userId)) {
+			selectedUsers = [...selectedUsers, user];
+		}
+		searchQuery = '';
+		searchResults = [];
+	}
+
+	function removeUser(userId: string) {
+		selectedUsers = selectedUsers.filter((u) => u.userId !== userId);
+	}
+
+	async function handleCreate() {
+		if (!name.trim() && !isDirect) {
+			error = 'Bitte gib einen Namen ein';
+			return;
+		}
+
+		if (isDirect && selectedUsers.length === 0) {
+			error = 'Bitte wähle mindestens einen Benutzer';
+			return;
+		}
+
+		loading = true;
+		error = null;
+
+		const roomId = await matrixStore.createRoom({
+			name: isDirect ? undefined : name.trim(),
+			topic: topic.trim() || undefined,
+			isDirect,
+			invite: selectedUsers.map((u) => u.userId),
+		});
+
+		loading = false;
+
+		if (roomId) {
+			onCreated?.(roomId);
+			resetForm();
+			onClose();
+		} else {
+			error = matrixStore.error || 'Raum konnte nicht erstellt werden';
+		}
+	}
+
+	function resetForm() {
+		name = '';
+		topic = '';
+		isPrivate = true;
+		isDirect = false;
+		searchQuery = '';
+		searchResults = [];
+		selectedUsers = [];
+		error = null;
+	}
+
+	function handleClose() {
+		resetForm();
+		onClose();
+	}
+</script>
+
+{#if open}
+	<!-- Backdrop -->
+	<div class="fixed inset-0 z-50 flex items-center justify-center bg-black/50" onclick={handleClose}>
+		<!-- Dialog -->
+		<div
+			class="w-full max-w-md rounded-xl bg-base-100 shadow-xl"
+			onclick={(e) => e.stopPropagation()}
+			role="dialog"
+			aria-modal="true"
+		>
+			<!-- Header -->
+			<div class="flex items-center justify-between border-b border-base-300 px-6 py-4">
+				<h2 class="text-xl font-semibold">Neuer Chat</h2>
+				<button class="btn btn-ghost btn-sm btn-circle" onclick={handleClose}>
+					<X class="h-5 w-5" />
+				</button>
+			</div>
+
+			<!-- Content -->
+			<div class="space-y-4 px-6 py-4">
+				<!-- Type Selection -->
+				<div class="flex gap-2">
+					<button
+						class="btn flex-1"
+						class:btn-primary={isDirect}
+						class:btn-ghost={!isDirect}
+						onclick={() => (isDirect = true)}
+					>
+						<MessageCircle class="h-4 w-4" />
+						Direktnachricht
+					</button>
+					<button
+						class="btn flex-1"
+						class:btn-primary={!isDirect}
+						class:btn-ghost={isDirect}
+						onclick={() => (isDirect = false)}
+					>
+						<Users class="h-4 w-4" />
+						Gruppenraum
+					</button>
+				</div>
+
+				<!-- Room Name (only for groups) -->
+				{#if !isDirect}
+					<div class="form-control">
+						<label class="label" for="room-name">
+							<span class="label-text">Raumname</span>
+						</label>
+						<input
+							id="room-name"
+							type="text"
+							bind:value={name}
+							class="input input-bordered"
+							placeholder="z.B. Team Chat"
+						/>
+					</div>
+
+					<div class="form-control">
+						<label class="label" for="room-topic">
+							<span class="label-text">Beschreibung (optional)</span>
+						</label>
+						<input
+							id="room-topic"
+							type="text"
+							bind:value={topic}
+							class="input input-bordered"
+							placeholder="Worum geht es in diesem Raum?"
+						/>
+					</div>
+
+					<!-- Privacy -->
+					<div class="form-control">
+						<label class="label cursor-pointer">
+							<span class="label-text flex items-center gap-2">
+								{#if isPrivate}
+									<Lock class="h-4 w-4" />
+									Privater Raum
+								{:else}
+									<Globe class="h-4 w-4" />
+									Öffentlicher Raum
+								{/if}
+							</span>
+							<input
+								type="checkbox"
+								class="toggle"
+								bind:checked={isPrivate}
+							/>
+						</label>
+						<p class="text-xs text-base-content/60 ml-1">
+							{isPrivate
+								? 'Nur eingeladene Benutzer können beitreten'
+								: 'Jeder kann diesen Raum finden und beitreten'}
+						</p>
+					</div>
+				{/if}
+
+				<!-- User Search -->
+				<div class="form-control">
+					<label class="label" for="user-search">
+						<span class="label-text">
+							{isDirect ? 'Mit wem möchtest du chatten?' : 'Benutzer einladen (optional)'}
+						</span>
+					</label>
+					<div class="relative">
+						<input
+							id="user-search"
+							type="text"
+							bind:value={searchQuery}
+							oninput={handleSearchInput}
+							class="input input-bordered w-full"
+							placeholder="@benutzer:server.de oder Name"
+						/>
+						{#if searching}
+							<Loader2 class="absolute right-3 top-1/2 h-4 w-4 -translate-y-1/2 animate-spin" />
+						{/if}
+					</div>
+
+					<!-- Search Results -->
+					{#if searchResults.length > 0}
+						<ul class="menu mt-2 max-h-40 overflow-y-auto rounded-lg bg-base-200 p-2">
+							{#each searchResults as user}
+								<li>
+									<button
+										class="flex items-center gap-2"
+										onclick={() => selectUser(user)}
+									>
+										<div class="avatar placeholder">
+											<div class="w-8 rounded-full bg-neutral text-neutral-content">
+												{#if user.avatarUrl}
+													<img src={user.avatarUrl} alt="" />
+												{:else}
+													<span class="text-xs">{user.displayName?.[0] || user.userId[1]}</span>
+												{/if}
+											</div>
+										</div>
+										<div class="flex-1 text-left">
+											<p class="font-medium">{user.displayName || user.userId}</p>
+											{#if user.displayName}
+												<p class="text-xs text-base-content/60">{user.userId}</p>
+											{/if}
+										</div>
+									</button>
+								</li>
+							{/each}
+						</ul>
+					{/if}
+				</div>
+
+				<!-- Selected Users -->
+				{#if selectedUsers.length > 0}
+					<div class="flex flex-wrap gap-2">
+						{#each selectedUsers as user}
+							<span class="badge badge-lg gap-1">
+								{user.displayName || user.userId}
+								<button onclick={() => removeUser(user.userId)}>
+									<X class="h-3 w-3" />
+								</button>
+							</span>
+						{/each}
+					</div>
+				{/if}
+
+				<!-- Error -->
+				{#if error}
+					<div class="alert alert-error">
+						<span>{error}</span>
+					</div>
+				{/if}
+			</div>
+
+			<!-- Footer -->
+			<div class="flex justify-end gap-2 border-t border-base-300 px-6 py-4">
+				<button class="btn btn-ghost" onclick={handleClose}>Abbrechen</button>
+				<button class="btn btn-primary" onclick={handleCreate} disabled={loading}>
+					{#if loading}
+						<Loader2 class="h-4 w-4 animate-spin" />
+					{/if}
+					{isDirect ? 'Chat starten' : 'Raum erstellen'}
+				</button>
+			</div>
+		</div>
+	</div>
+{/if}
diff --git a/apps/matrix/apps/web/src/lib/components/chat/Message.svelte b/apps/matrix/apps/web/src/lib/components/chat/Message.svelte
index 34570f18f..e6a180563 100644
--- a/apps/matrix/apps/web/src/lib/components/chat/Message.svelte
+++ b/apps/matrix/apps/web/src/lib/components/chat/Message.svelte
@@ -1,15 +1,32 @@
 <script lang="ts">
 	import type { SimpleMessage } from '$lib/matrix';
+	import { matrixStore } from '$lib/matrix';
 	import { format, isToday, isYesterday } from 'date-fns';
 	import { de } from 'date-fns/locale';
+	import {
+		Reply,
+		Pencil,
+		Trash2,
+		MoreHorizontal,
+		Download,
+		FileIcon,
+		Play,
+		Image as ImageIcon,
+	} from 'lucide-svelte';
 
 	interface Props {
 		message: SimpleMessage;
 		showAvatar?: boolean;
 		showTimestamp?: boolean;
+		onReply?: (message: SimpleMessage) => void;
+		onEdit?: (message: SimpleMessage) => void;
 	}
 
-	let { message, showAvatar = true, showTimestamp = false }: Props = $props();
+	let { message, showAvatar = true, showTimestamp = false, onReply, onEdit }: Props = $props();
+
+	let showActions = $state(false);
+	let imageLoading = $state(true);
+	let imageError = $state(false);
 
 	let formattedTime = $derived(format(message.timestamp, 'HH:mm'));
 
@@ -28,6 +45,34 @@
 			.substring(0, 2)
 			.toUpperCase()
 	);
+
+	// Get media URL for display
+	let mediaUrl = $derived(
+		message.media?.mxcUrl ? matrixStore.getMediaUrl(message.media.mxcUrl) : null
+	);
+
+	let thumbnailUrl = $derived(
+		message.media?.thumbnailUrl
+			? matrixStore.getMediaUrl(message.media.thumbnailUrl)
+			: message.media?.mxcUrl
+				? matrixStore.getMediaUrl(message.media.mxcUrl, 400, 400)
+				: null
+	);
+
+	// Format file size
+	function formatFileSize(bytes?: number): string {
+		if (!bytes) return '';
+		if (bytes < 1024) return `${bytes} B`;
+		if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
+		return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
+	}
+
+	// Handle message deletion
+	async function handleDelete() {
+		if (confirm('Nachricht wirklich löschen?')) {
+			await matrixStore.deleteMessage(message.id);
+		}
+	}
 </script>
 
 <!-- Date separator -->
@@ -40,7 +85,14 @@
 {/if}
 
 <!-- Message -->
-<div class="group flex gap-3 rounded-lg px-2 py-1 hover:bg-base-200/50" class:mt-2={showAvatar}>
+<div
+	class="group relative flex gap-3 rounded-lg px-2 py-1 hover:bg-base-200/50"
+	class:mt-2={showAvatar}
+	class:opacity-50={message.redacted}
+	role="article"
+	onmouseenter={() => (showActions = true)}
+	onmouseleave={() => (showActions = false)}
+>
 	<!-- Avatar Column -->
 	<div class="w-10 flex-shrink-0">
 		{#if showAvatar && !message.isOwn}
@@ -66,9 +118,89 @@
 			</div>
 		{/if}
 
+		<!-- Reply preview -->
+		{#if message.replyTo && message.replyToBody}
+			<div
+				class="mb-1 flex items-center gap-2 rounded border-l-2 border-primary/50 bg-base-200 px-2 py-1 text-sm"
+			>
+				<Reply class="h-3 w-3 flex-shrink-0 text-base-content/50" />
+				<span class="truncate text-base-content/60">{message.replyToBody}</span>
+			</div>
+		{/if}
+
 		<!-- Message body -->
 		<div class="relative">
-			{#if message.type === 'm.emote'}
+			{#if message.redacted}
+				<p class="italic text-base-content/50">Nachricht wurde gelöscht</p>
+			{:else if message.type === 'm.image' && thumbnailUrl}
+				<!-- Image message -->
+				<div class="relative max-w-sm">
+					{#if imageLoading}
+						<div class="flex h-48 w-full items-center justify-center rounded-lg bg-base-200">
+							<ImageIcon class="h-8 w-8 animate-pulse text-base-content/30" />
+						</div>
+					{/if}
+					{#if imageError}
+						<div class="flex h-32 w-full items-center justify-center rounded-lg bg-base-200">
+							<p class="text-sm text-base-content/50">Bild konnte nicht geladen werden</p>
+						</div>
+					{:else}
+						<img
+							src={thumbnailUrl}
+							alt={message.body}
+							class="max-h-80 cursor-pointer rounded-lg object-contain"
+							class:hidden={imageLoading}
+							onload={() => (imageLoading = false)}
+							onerror={() => {
+								imageLoading = false;
+								imageError = true;
+							}}
+							onclick={() => mediaUrl && window.open(mediaUrl, '_blank')}
+						/>
+					{/if}
+				</div>
+			{:else if message.type === 'm.video' && thumbnailUrl}
+				<!-- Video message -->
+				<div class="relative max-w-sm">
+					<div class="group/video relative">
+						<img src={thumbnailUrl} alt={message.body} class="rounded-lg" />
+						<div
+							class="absolute inset-0 flex items-center justify-center bg-black/30 opacity-0 transition-opacity group-hover/video:opacity-100"
+						>
+							<Play class="h-12 w-12 text-white" />
+						</div>
+					</div>
+					{#if message.media?.duration}
+						<span class="absolute bottom-2 right-2 rounded bg-black/60 px-1 text-xs text-white">
+							{Math.floor(message.media.duration / 60)}:{(message.media.duration % 60)
+								.toString()
+								.padStart(2, '0')}
+						</span>
+					{/if}
+				</div>
+			{:else if message.type === 'm.file' || message.type === 'm.audio'}
+				<!-- File/Audio message -->
+				<a
+					href={mediaUrl}
+					target="_blank"
+					rel="noopener noreferrer"
+					class="flex items-center gap-3 rounded-lg border border-base-300 bg-base-200 p-3 transition-colors hover:bg-base-300"
+				>
+					<div class="rounded-lg bg-primary/10 p-2">
+						<FileIcon class="h-6 w-6 text-primary" />
+					</div>
+					<div class="min-w-0 flex-1">
+						<p class="truncate font-medium">{message.media?.filename || message.body}</p>
+						<p class="text-sm text-base-content/60">
+							{formatFileSize(message.media?.size)}
+							{#if message.media?.mimetype}
+								• {message.media.mimetype.split('/')[1]?.toUpperCase()}
+							{/if}
+						</p>
+					</div>
+					<Download class="h-5 w-5 flex-shrink-0 text-base-content/50" />
+				</a>
+			{:else if message.type === 'm.emote'}
 				<p class="italic text-base-content/80">* {message.senderName} {message.body}</p>
 			{:else if message.type === 'm.notice'}
 				<p class="text-sm text-base-content/60">{message.body}</p>
@@ -78,12 +210,37 @@
 
 			<!-- Hover timestamp for grouped messages -->
 			{#if !showAvatar}
-				<span
-					class="absolute -left-12 top-0 hidden text-xs text-base-content/40 group-hover:inline"
-				>
+				<span class="absolute -left-12 top-0 hidden text-xs text-base-content/40 group-hover:inline">
 					{formattedTime}
 				</span>
 			{/if}
 		</div>
 	</div>
+
+	<!-- Message actions (hover) -->
+	{#if showActions && !message.redacted}
+		<div class="absolute -top-2 right-2 flex items-center gap-1 rounded-lg border border-base-300 bg-base-100 p-1 shadow-sm">
+			<button
+				class="btn btn-ghost btn-xs"
+				title="Antworten"
+				onclick={() => onReply?.(message)}
+			>
+				<Reply class="h-4 w-4" />
+			</button>
+			{#if message.isOwn && message.type === 'm.text'}
+				<button
+					class="btn btn-ghost btn-xs"
+					title="Bearbeiten"
+					onclick={() => onEdit?.(message)}
+				>
+					<Pencil class="h-4 w-4" />
+				</button>
+			{/if}
+			{#if message.isOwn}
+				<button class="btn btn-ghost btn-xs text-error" title="Löschen" onclick={handleDelete}>
+					<Trash2 class="h-4 w-4" />
+				</button>
+			{/if}
+		</div>
+	{/if}
 </div>
diff --git a/apps/matrix/apps/web/src/lib/components/chat/MessageInput.svelte b/apps/matrix/apps/web/src/lib/components/chat/MessageInput.svelte
index dc643bae0..aa80ff2c0 100644
--- a/apps/matrix/apps/web/src/lib/components/chat/MessageInput.svelte
+++ b/apps/matrix/apps/web/src/lib/components/chat/MessageInput.svelte
@@ -1,18 +1,56 @@
 <script lang="ts">
-	import { matrixStore } from '$lib/matrix';
-	import { Send, Paperclip, Smile } from 'lucide-svelte';
+	import { matrixStore, type SimpleMessage } from '$lib/matrix';
+	import { Send, Paperclip, Smile, X, Image, File, Loader2 } from 'lucide-svelte';
+
+	interface Props {
+		replyTo?: SimpleMessage | null;
+		editMessage?: SimpleMessage | null;
+		onCancelReply?: () => void;
+		onCancelEdit?: () => void;
+	}
+
+	let { replyTo = null, editMessage = null, onCancelReply, onCancelEdit }: Props = $props();
 
 	let message = $state('');
 	let textarea: HTMLTextAreaElement;
+	let fileInput: HTMLInputElement;
 	let typingTimeout: ReturnType<typeof setTimeout>;
 	let isTyping = $state(false);
+	let uploading = $state(false);
+	let uploadProgress = $state(0);
+
+	// Set message content when editing
+	$effect(() => {
+		if (editMessage) {
+			message = editMessage.body;
+			textarea?.focus();
+		}
+	});
 
 	async function handleSend() {
 		const trimmed = message.trim();
 		if (!trimmed) return;
 
-		const sent = await matrixStore.sendMessage(trimmed);
-		if (sent) {
+		let success = false;
+
+		if (editMessage) {
+			// Edit existing message
+			success = await matrixStore.editMessage(editMessage.id, trimmed);
+			if (success) {
+				onCancelEdit?.();
+			}
+		} else if (replyTo) {
+			// Reply to message
+			success = await matrixStore.replyToMessage(replyTo.id, trimmed);
+			if (success) {
+				onCancelReply?.();
+			}
+		} else {
+			// Normal message
+			success = await matrixStore.sendMessage(trimmed);
+		}
+
+		if (success) {
 			message = '';
 			stopTyping();
 			adjustTextareaHeight();
@@ -23,7 +61,7 @@
 		adjustTextareaHeight();
 
 		// Send typing indicator
-		if (!isTyping) {
+		if (!isTyping && !editMessage) {
 			isTyping = true;
 			matrixStore.sendTyping(true);
 		}
@@ -47,6 +85,15 @@
 			e.preventDefault();
 			handleSend();
 		}
+		// Cancel on Escape
+		if (e.key === 'Escape') {
+			if (editMessage) {
+				onCancelEdit?.();
+				message = '';
+			} else if (replyTo) {
+				onCancelReply?.();
+			}
+		}
 	}
 
 	function adjustTextareaHeight() {
@@ -54,52 +101,169 @@
 		textarea.style.height = 'auto';
 		textarea.style.height = Math.min(textarea.scrollHeight, 200) + 'px';
 	}
+
+	function openFilePicker() {
+		fileInput?.click();
+	}
+
+	async function handleFileSelect(e: Event) {
+		const input = e.target as HTMLInputElement;
+		const file = input.files?.[0];
+		if (!file) return;
+
+		uploading = true;
+		uploadProgress = 0;
+
+		const success = await matrixStore.sendFile(file, (progress) => {
+			uploadProgress = progress;
+		});
+
+		uploading = false;
+		uploadProgress = 0;
+		input.value = ''; // Reset input
+
+		if (!success) {
+			// Show error toast or notification
+			console.error('Failed to upload file');
+		}
+	}
 </script>
 
-<div class="border-t border-base-300 bg-base-100 p-4">
-	<div class="flex items-end gap-2">
-		<!-- Attachment button -->
-		<button class="btn btn-ghost btn-sm" title="Attach file" disabled>
-			<Paperclip class="h-5 w-5" />
-		</button>
-
-		<!-- Text input -->
-		<div class="relative flex-1">
-			<textarea
-				bind:this={textarea}
-				bind:value={message}
-				oninput={handleInput}
-				onkeydown={handleKeydown}
-				onblur={stopTyping}
-				placeholder="Write a message..."
-				rows="1"
-				class="textarea textarea-bordered w-full resize-none pr-10"
-				style="max-height: 200px; min-height: 48px;"
-			></textarea>
-
-			<!-- Emoji button (inside textarea) -->
+<div class="border-t border-base-300 bg-base-100">
+	<!-- Reply/Edit Preview -->
+	{#if replyTo || editMessage}
+		<div class="flex items-center gap-2 border-b border-base-300 bg-base-200/50 px-4 py-2">
+			<div class="flex-1">
+				{#if editMessage}
+					<p class="text-xs text-base-content/60">Nachricht bearbeiten</p>
+					<p class="truncate text-sm">{editMessage.body}</p>
+				{:else if replyTo}
+					<p class="text-xs text-base-content/60">
+						Antwort auf <span class="font-medium">{replyTo.senderName}</span>
+					</p>
+					<p class="truncate text-sm">{replyTo.body}</p>
+				{/if}
+			</div>
 			<button
-				class="absolute bottom-2 right-2 text-base-content/50 hover:text-base-content"
-				title="Add emoji"
-				disabled
+				class="btn btn-ghost btn-xs"
+				onclick={() => {
+					if (editMessage) {
+						onCancelEdit?.();
+						message = '';
+					} else {
+						onCancelReply?.();
+					}
+				}}
 			>
-				<Smile class="h-5 w-5" />
+				<X class="h-4 w-4" />
+			</button>
+		</div>
+	{/if}
+
+	<!-- Upload Progress -->
+	{#if uploading}
+		<div class="flex items-center gap-3 px-4 py-2">
+			<Loader2 class="h-5 w-5 animate-spin text-primary" />
+			<div class="flex-1">
+				<div class="h-2 overflow-hidden rounded-full bg-base-300">
+					<div
+						class="h-full bg-primary transition-all duration-300"
+						style="width: {uploadProgress}%"
+					></div>
+				</div>
+			</div>
+			<span class="text-sm text-base-content/60">{uploadProgress}%</span>
+		</div>
+	{/if}
+
+	<!-- Input Area -->
+	<div class="p-4">
+		<div class="flex items-end gap-2">
+			<!-- Attachment button -->
+			<div class="dropdown dropdown-top">
+				<button
+					tabindex="0"
+					class="btn btn-ghost btn-sm"
+					title="Datei anhängen"
+					disabled={uploading}
+				>
+					<Paperclip class="h-5 w-5" />
+				</button>
+				<ul
+					tabindex="0"
+					class="dropdown-content menu rounded-box z-50 w-48 bg-base-100 p-2 shadow-lg"
+				>
+					<li>
+						<button onclick={openFilePicker}>
+							<Image class="h-4 w-4" />
+							Bild oder Video
+						</button>
+					</li>
+					<li>
+						<button onclick={openFilePicker}>
+							<File class="h-4 w-4" />
+							Datei
+						</button>
+					</li>
+				</ul>
+			</div>
+
+			<!-- Hidden file input -->
+			<input
+				bind:this={fileInput}
+				type="file"
+				class="hidden"
+				accept="*/*"
+				onchange={handleFileSelect}
+			/>
+
+			<!-- Text input -->
+			<div class="relative flex-1">
+				<textarea
+					bind:this={textarea}
+					bind:value={message}
+					oninput={handleInput}
+					onkeydown={handleKeydown}
+					onblur={stopTyping}
+					placeholder={editMessage
+						? 'Nachricht bearbeiten...'
+						: replyTo
+							? 'Antwort schreiben...'
+							: 'Nachricht schreiben...'}
+					rows="1"
+					class="textarea textarea-bordered w-full resize-none pr-10"
+					style="max-height: 200px; min-height: 48px;"
+					disabled={uploading}
+				></textarea>
+
+				<!-- Emoji button (inside textarea) -->
+				<button
+					class="absolute bottom-2 right-2 text-base-content/50 hover:text-base-content"
+					title="Emoji hinzufügen"
+					disabled
+				>
+					<Smile class="h-5 w-5" />
+				</button>
+			</div>
+
+			<!-- Send button -->
+			<button
+				class="btn btn-primary"
+				onclick={handleSend}
+				disabled={!message.trim() || uploading}
+				title={editMessage ? 'Speichern' : 'Senden'}
+			>
+				<Send class="h-5 w-5" />
 			</button>
 		</div>
 
-		<!-- Send button -->
-		<button
-			class="btn btn-primary"
-			onclick={handleSend}
-			disabled={!message.trim()}
-			title="Send message"
-		>
-			<Send class="h-5 w-5" />
-		</button>
+		<!-- Hint -->
+		<p class="mt-1 text-xs text-base-content/40">
+			{#if editMessage}
+				Enter zum Speichern, Escape zum Abbrechen
+			{:else}
+				Enter zum Senden, Shift+Enter für neue Zeile
+			{/if}
+		</p>
 	</div>
-
-	<!-- Hint -->
-	<p class="mt-1 text-xs text-base-content/40">
-		Press Enter to send, Shift+Enter for new line
-	</p>
 </div>
diff --git a/apps/matrix/apps/web/src/lib/components/chat/RoomHeader.svelte b/apps/matrix/apps/web/src/lib/components/chat/RoomHeader.svelte
index 972e3f722..7d33a4b8e 100644
--- a/apps/matrix/apps/web/src/lib/components/chat/RoomHeader.svelte
+++ b/apps/matrix/apps/web/src/lib/components/chat/RoomHeader.svelte
@@ -4,9 +4,10 @@
 
 	interface Props {
 		onMenuClick?: () => void;
+		onInfoClick?: () => void;
 	}
 
-	let { onMenuClick }: Props = $props();
+	let { onMenuClick, onInfoClick }: Props = $props();
 
 	let room = $derived(matrixStore.currentSimpleRoom);
 </script>
@@ -57,7 +58,7 @@
 			<button class="btn btn-ghost btn-sm" title="Video call" disabled>
 				<Video class="h-5 w-5" />
 			</button>
-			<button class="btn btn-ghost btn-sm" title="Room info">
+			<button class="btn btn-ghost btn-sm" title="Room info" onclick={onInfoClick}>
 				<Info class="h-5 w-5" />
 			</button>
 		</div>
diff --git a/apps/matrix/apps/web/src/lib/components/chat/RoomList.svelte b/apps/matrix/apps/web/src/lib/components/chat/RoomList.svelte
index 1e0d34239..1d63931ca 100644
--- a/apps/matrix/apps/web/src/lib/components/chat/RoomList.svelte
+++ b/apps/matrix/apps/web/src/lib/components/chat/RoomList.svelte
@@ -3,6 +3,12 @@
 	import RoomItem from './RoomItem.svelte';
 	import { Search, Plus, Users, MessageCircle } from 'lucide-svelte';
 
+	interface Props {
+		onCreateRoom?: () => void;
+	}
+
+	let { onCreateRoom }: Props = $props();
+
 	let search = $state('');
 	let showDMs = $state(true);
 
@@ -68,9 +74,9 @@
 
 	<!-- New Room Button -->
 	<div class="border-t border-base-300 p-3">
-		<button class="btn btn-ghost btn-sm w-full justify-start">
+		<button class="btn btn-ghost btn-sm w-full justify-start" onclick={onCreateRoom}>
 			<Plus class="h-4 w-4" />
-			{showDMs ? 'Start new chat' : 'Join or create room'}
+			{showDMs ? 'Neuen Chat starten' : 'Raum erstellen'}
 		</button>
 	</div>
 </div>
diff --git a/apps/matrix/apps/web/src/lib/components/chat/RoomSettingsPanel.svelte b/apps/matrix/apps/web/src/lib/components/chat/RoomSettingsPanel.svelte
new file mode 100644
index 000000000..97608febb
--- /dev/null
+++ b/apps/matrix/apps/web/src/lib/components/chat/RoomSettingsPanel.svelte
@@ -0,0 +1,225 @@
+<script lang="ts">
+	import { matrixStore } from '$lib/matrix';
+	import {
+		X,
+		Users,
+		Settings,
+		UserPlus,
+		LogOut,
+		Crown,
+		Shield,
+		Bell,
+		BellOff,
+		Loader2,
+	} from 'lucide-svelte';
+
+	interface Props {
+		open: boolean;
+		onClose: () => void;
+	}
+
+	let { open, onClose }: Props = $props();
+
+	let activeTab = $state<'members' | 'settings'>('members');
+	let inviteQuery = $state('');
+	let searchResults = $state<{ userId: string; displayName?: string; avatarUrl?: string }[]>([]);
+	let searching = $state(false);
+	let inviting = $state(false);
+	let searchTimeout: ReturnType<typeof setTimeout>;
+
+	let room = $derived(matrixStore.currentSimpleRoom);
+	let members = $derived(matrixStore.getRoomMembers());
+
+	function handleSearchInput() {
+		clearTimeout(searchTimeout);
+		if (inviteQuery.trim().length < 2) {
+			searchResults = [];
+			return;
+		}
+
+		searchTimeout = setTimeout(async () => {
+			searching = true;
+			const results = await matrixStore.searchUsers(inviteQuery);
+			// Filter out existing members
+			const memberIds = new Set(members.map((m) => m.userId));
+			searchResults = results.filter((r) => !memberIds.has(r.userId));
+			searching = false;
+		}, 300);
+	}
+
+	async function inviteUser(userId: string) {
+		if (!matrixStore.currentRoomId) return;
+
+		inviting = true;
+		const success = await matrixStore.inviteUser(matrixStore.currentRoomId, userId);
+		inviting = false;
+
+		if (success) {
+			inviteQuery = '';
+			searchResults = [];
+		}
+	}
+
+	async function leaveRoom() {
+		if (!matrixStore.currentRoomId) return;
+		if (!confirm('Möchtest du diesen Raum wirklich verlassen?')) return;
+
+		const success = await matrixStore.leaveRoom(matrixStore.currentRoomId);
+		if (success) {
+			onClose();
+		}
+	}
+
+	function getPowerLevelIcon(level: number) {
+		if (level >= 100) return Crown;
+		if (level >= 50) return Shield;
+		return null;
+	}
+</script>
+
+{#if open && room}
+	<!-- Slide-in Panel -->
+	<div class="fixed inset-y-0 right-0 z-40 flex w-80 flex-col border-l border-base-300 bg-base-100 shadow-xl">
+		<!-- Header -->
+		<header class="flex items-center justify-between border-b border-base-300 px-4 py-3">
+			<h2 class="font-semibold">Raum-Details</h2>
+			<button class="btn btn-ghost btn-sm btn-circle" onclick={onClose}>
+				<X class="h-5 w-5" />
+			</button>
+		</header>
+
+		<!-- Room Info -->
+		<div class="border-b border-base-300 p-4 text-center">
+			<div class="avatar placeholder mx-auto mb-3">
+				<div class="w-20 rounded-full bg-neutral text-neutral-content">
+					{#if room.avatar}
+						<img src={room.avatar} alt={room.name} />
+					{:else}
+						<span class="text-2xl">{room.name.charAt(0).toUpperCase()}</span>
+					{/if}
+				</div>
+			</div>
+			<h3 class="text-lg font-semibold">{room.name}</h3>
+			{#if room.topic}
+				<p class="mt-1 text-sm text-base-content/60">{room.topic}</p>
+			{/if}
+			<p class="mt-2 text-xs text-base-content/50">
+				{room.memberCount} Mitglieder
+				{#if room.isEncrypted}
+					• Verschlüsselt
+				{/if}
+			</p>
+		</div>
+
+		<!-- Tabs -->
+		<div class="tabs tabs-bordered">
+			<button
+				class="tab flex-1"
+				class:tab-active={activeTab === 'members'}
+				onclick={() => (activeTab = 'members')}
+			>
+				<Users class="mr-1 h-4 w-4" />
+				Mitglieder
+			</button>
+			<button
+				class="tab flex-1"
+				class:tab-active={activeTab === 'settings'}
+				onclick={() => (activeTab = 'settings')}
+			>
+				<Settings class="mr-1 h-4 w-4" />
+				Einstellungen
+			</button>
+		</div>
+
+		<!-- Content -->
+		<div class="flex-1 overflow-y-auto">
+			{#if activeTab === 'members'}
+				<!-- Invite User -->
+				<div class="border-b border-base-300 p-3">
+					<div class="relative">
+						<input
+							type="text"
+							bind:value={inviteQuery}
+							oninput={handleSearchInput}
+							class="input input-bordered input-sm w-full"
+							placeholder="Benutzer einladen..."
+						/>
+						{#if searching}
+							<Loader2 class="absolute right-3 top-1/2 h-4 w-4 -translate-y-1/2 animate-spin" />
+						{/if}
+					</div>
+
+					<!-- Search Results -->
+					{#if searchResults.length > 0}
+						<ul class="menu mt-2 rounded-lg bg-base-200 p-1">
+							{#each searchResults as user}
+								<li>
+									<button
+										class="flex items-center gap-2 py-1"
+										onclick={() => inviteUser(user.userId)}
+										disabled={inviting}
+									>
+										<div class="avatar placeholder">
+											<div class="w-6 rounded-full bg-neutral text-neutral-content">
+												<span class="text-xs">{user.displayName?.[0] || '?'}</span>
+											</div>
+										</div>
+										<span class="flex-1 truncate text-sm">
+											{user.displayName || user.userId}
+										</span>
+										<UserPlus class="h-4 w-4 text-primary" />
+									</button>
+								</li>
+							{/each}
+						</ul>
+					{/if}
+				</div>
+
+				<!-- Member List -->
+				<ul class="menu p-2">
+					{#each members as member}
+						{@const PowerIcon = getPowerLevelIcon(member.powerLevel)}
+						<li>
+							<div class="flex items-center gap-2 py-1">
+								<div class="avatar placeholder">
+									<div class="w-8 rounded-full bg-neutral text-neutral-content">
+										{#if member.avatarUrl}
+											<img src={member.avatarUrl} alt="" />
+										{:else}
+											<span class="text-xs">
+												{member.displayName.charAt(0).toUpperCase()}
+											</span>
+										{/if}
+									</div>
+								</div>
+								<div class="flex-1 min-w-0">
+									<p class="truncate font-medium">{member.displayName}</p>
+									<p class="truncate text-xs text-base-content/50">{member.userId}</p>
+								</div>
+								{#if PowerIcon}
+									<PowerIcon class="h-4 w-4 text-warning" />
+								{/if}
+							</div>
+						</li>
+					{/each}
+				</ul>
+			{:else}
+				<!-- Settings -->
+				<div class="space-y-2 p-3">
+					<!-- Notifications -->
+					<button class="btn btn-ghost w-full justify-start">
+						<Bell class="h-4 w-4" />
+						Benachrichtigungen
+						<span class="ml-auto badge badge-sm">An</span>
+					</button>
+
+					<!-- Leave Room -->
+					<button class="btn btn-ghost w-full justify-start text-error" onclick={leaveRoom}>
+						<LogOut class="h-4 w-4" />
+						Raum verlassen
+					</button>
+				</div>
+			{/if}
+		</div>
+	</div>
+{/if}
diff --git a/apps/matrix/apps/web/src/lib/components/chat/Timeline.svelte b/apps/matrix/apps/web/src/lib/components/chat/Timeline.svelte
index b24325e21..eb04b363a 100644
--- a/apps/matrix/apps/web/src/lib/components/chat/Timeline.svelte
+++ b/apps/matrix/apps/web/src/lib/components/chat/Timeline.svelte
@@ -1,10 +1,17 @@
 <script lang="ts">
-	import { matrixStore } from '$lib/matrix';
+	import { matrixStore, type SimpleMessage } from '$lib/matrix';
 	import Message from './Message.svelte';
 	import TypingIndicator from './TypingIndicator.svelte';
 	import { onMount, tick } from 'svelte';
 	import { Loader2, ArrowDown } from 'lucide-svelte';
 
+	interface Props {
+		onReply?: (message: SimpleMessage) => void;
+		onEdit?: (message: SimpleMessage) => void;
+	}
+
+	let { onReply, onEdit }: Props = $props();
+
 	let container: HTMLDivElement;
 	let showScrollButton = $state(false);
 	let loadingMore = $state(false);
@@ -86,7 +93,7 @@
 				{@const showAvatar = !prevMessage || prevMessage.sender !== message.sender}
 				{@const showTimestamp =
 					!prevMessage || message.timestamp - prevMessage.timestamp > 5 * 60 * 1000}
-				<Message {message} {showAvatar} {showTimestamp} />
+				<Message {message} {showAvatar} {showTimestamp} {onReply} {onEdit} />
 			{:else}
 				<div class="flex h-full flex-col items-center justify-center text-base-content/50">
 					<p>No messages yet</p>
diff --git a/apps/matrix/apps/web/src/lib/components/chat/index.ts b/apps/matrix/apps/web/src/lib/components/chat/index.ts
index 705dc54f0..cb77e5a01 100644
--- a/apps/matrix/apps/web/src/lib/components/chat/index.ts
+++ b/apps/matrix/apps/web/src/lib/components/chat/index.ts
@@ -5,3 +5,5 @@ export { default as Timeline } from './Timeline.svelte';
 export { default as Message } from './Message.svelte';
 export { default as MessageInput } from './MessageInput.svelte';
 export { default as TypingIndicator } from './TypingIndicator.svelte';
+export { default as CreateRoomDialog } from './CreateRoomDialog.svelte';
+export { default as RoomSettingsPanel } from './RoomSettingsPanel.svelte';
diff --git a/apps/matrix/apps/web/src/lib/matrix/store.svelte.ts b/apps/matrix/apps/web/src/lib/matrix/store.svelte.ts
index a3f980bba..70a71523e 100644
--- a/apps/matrix/apps/web/src/lib/matrix/store.svelte.ts
+++ b/apps/matrix/apps/web/src/lib/matrix/store.svelte.ts
@@ -353,6 +353,264 @@ class MatrixStore {
 		}
 	}
 
+	/**
+	 * Send a file/image to current room
+	 */
+	async sendFile(
+		file: File,
+		onProgress?: (progress: number) => void
+	): Promise<boolean> {
+		if (!this._client || !this._currentRoomId) return false;
+
+		try {
+			// Upload to Matrix media repo
+			const uploadResponse = await this._client.uploadContent(file, {
+				progressHandler: (progress) => {
+					if (onProgress) {
+						onProgress(Math.round((progress.loaded / progress.total) * 100));
+					}
+				},
+			});
+
+			const mxcUrl = uploadResponse.content_uri;
+
+			// Determine message type based on MIME type
+			const isImage = file.type.startsWith('image/');
+			const isVideo = file.type.startsWith('video/');
+			const isAudio = file.type.startsWith('audio/');
+
+			let msgtype = 'm.file';
+			if (isImage) msgtype = 'm.image';
+			if (isVideo) msgtype = 'm.video';
+			if (isAudio) msgtype = 'm.audio';
+
+			// Build content based on type
+			const content: Record<string, unknown> = {
+				msgtype,
+				body: file.name,
+				filename: file.name,
+				info: {
+					mimetype: file.type,
+					size: file.size,
+				},
+				url: mxcUrl,
+			};
+
+			// Add dimensions for images
+			if (isImage) {
+				const dimensions = await this.getImageDimensions(file);
+				if (dimensions) {
+					(content.info as Record<string, unknown>).w = dimensions.width;
+					(content.info as Record<string, unknown>).h = dimensions.height;
+				}
+			}
+
+			await this._client.sendMessage(this._currentRoomId, content);
+			return true;
+		} catch (err) {
+			this._error = err instanceof Error ? err.message : 'Failed to send file';
+			return false;
+		}
+	}
+
+	/**
+	 * Get image dimensions
+	 */
+	private getImageDimensions(file: File): Promise<{ width: number; height: number } | null> {
+		return new Promise((resolve) => {
+			if (!file.type.startsWith('image/')) {
+				resolve(null);
+				return;
+			}
+
+			const img = new Image();
+			img.onload = () => {
+				resolve({ width: img.width, height: img.height });
+				URL.revokeObjectURL(img.src);
+			};
+			img.onerror = () => resolve(null);
+			img.src = URL.createObjectURL(file);
+		});
+	}
+
+	/**
+	 * Get HTTP URL for Matrix media (mxc:// URLs)
+	 */
+	getMediaUrl(mxcUrl: string, width?: number, height?: number): string | null {
+		if (!this._client || !mxcUrl?.startsWith('mxc://')) return null;
+
+		if (width && height) {
+			return this._client.mxcUrlToHttp(mxcUrl, width, height, 'scale') || null;
+		}
+		return this._client.mxcUrlToHttp(mxcUrl) || null;
+	}
+
+	/**
+	 * Reply to a message
+	 */
+	async replyToMessage(eventId: string, body: string): Promise<boolean> {
+		if (!this._client || !this._currentRoomId) return false;
+
+		const room = this._client.getRoom(this._currentRoomId);
+		const originalEvent = room?.findEventById(eventId);
+		if (!originalEvent) return false;
+
+		try {
+			const content = {
+				msgtype: 'm.text',
+				body: `> <${originalEvent.getSender()}> ${originalEvent.getContent().body}\n\n${body}`,
+				format: 'org.matrix.custom.html',
+				formatted_body: `<mx-reply><blockquote><a href="https://matrix.to/#/${this._currentRoomId}/${eventId}">In reply to</a> <a href="https://matrix.to/#/${originalEvent.getSender()}">${originalEvent.getSender()}</a><br>${originalEvent.getContent().body}</blockquote></mx-reply>${body}`,
+				'm.relates_to': {
+					'm.in_reply_to': {
+						event_id: eventId,
+					},
+				},
+			};
+
+			await this._client.sendMessage(this._currentRoomId, content);
+			return true;
+		} catch (err) {
+			this._error = err instanceof Error ? err.message : 'Failed to send reply';
+			return false;
+		}
+	}
+
+	/**
+	 * Edit a message
+	 */
+	async editMessage(eventId: string, newBody: string): Promise<boolean> {
+		if (!this._client || !this._currentRoomId) return false;
+
+		try {
+			const content = {
+				msgtype: 'm.text',
+				body: `* ${newBody}`,
+				'm.new_content': {
+					msgtype: 'm.text',
+					body: newBody,
+				},
+				'm.relates_to': {
+					rel_type: 'm.replace',
+					event_id: eventId,
+				},
+			};
+
+			await this._client.sendMessage(this._currentRoomId, content);
+			return true;
+		} catch (err) {
+			this._error = err instanceof Error ? err.message : 'Failed to edit message';
+			return false;
+		}
+	}
+
+	/**
+	 * Delete (redact) a message
+	 */
+	async deleteMessage(eventId: string, reason?: string): Promise<boolean> {
+		if (!this._client || !this._currentRoomId) return false;
+
+		try {
+			await this._client.redactEvent(this._currentRoomId, eventId, undefined, { reason });
+			return true;
+		} catch (err) {
+			this._error = err instanceof Error ? err.message : 'Failed to delete message';
+			return false;
+		}
+	}
+
+	/**
+	 * React to a message with an emoji
+	 */
+	async reactToMessage(eventId: string, emoji: string): Promise<boolean> {
+		if (!this._client || !this._currentRoomId) return false;
+
+		try {
+			await this._client.sendEvent(this._currentRoomId, 'm.reaction', {
+				'm.relates_to': {
+					rel_type: 'm.annotation',
+					event_id: eventId,
+					key: emoji,
+				},
+			});
+			return true;
+		} catch (err) {
+			this._error = err instanceof Error ? err.message : 'Failed to react';
+			return false;
+		}
+	}
+
+	// ─────────────────────────────────────────────────────────
+	// User Actions
+	// ─────────────────────────────────────────────────────────
+
+	/**
+	 * Invite a user to a room
+	 */
+	async inviteUser(roomId: string, userId: string): Promise<boolean> {
+		if (!this._client) return false;
+
+		try {
+			await this._client.invite(roomId, userId);
+			return true;
+		} catch (err) {
+			this._error = err instanceof Error ? err.message : 'Failed to invite user';
+			return false;
+		}
+	}
+
+	/**
+	 * Kick a user from a room
+	 */
+	async kickUser(roomId: string, userId: string, reason?: string): Promise<boolean> {
+		if (!this._client) return false;
+
+		try {
+			await this._client.kick(roomId, userId, reason);
+			return true;
+		} catch (err) {
+			this._error = err instanceof Error ? err.message : 'Failed to kick user';
+			return false;
+		}
+	}
+
+	/**
+	 * Search for users by name or ID
+	 */
+	async searchUsers(query: string, limit = 10): Promise<{ userId: string; displayName?: string; avatarUrl?: string }[]> {
+		if (!this._client || !query.trim()) return [];
+
+		try {
+			const result = await this._client.searchUserDirectory({ term: query, limit });
+			return result.results.map((user) => ({
+				userId: user.user_id,
+				displayName: user.display_name,
+				avatarUrl: user.avatar_url ? this.getMediaUrl(user.avatar_url, 40, 40) || undefined : undefined,
+			}));
+		} catch {
+			return [];
+		}
+	}
+
+	/**
+	 * Get room members
+	 */
+	getRoomMembers(roomId?: string): RoomMember[] {
+		const id = roomId || this._currentRoomId;
+		if (!this._client || !id) return [];
+
+		const room = this._client.getRoom(id);
+		if (!room) return [];
+
+		return room.getMembersWithMembership('join').map((member) => ({
+			userId: member.userId,
+			displayName: member.name || member.userId,
+			avatarUrl: member.getAvatarUrl(this._client!.baseUrl, 40, 40, 'scale', false, false) || undefined,
+			membership: member.membership as RoomMember['membership'],
+			powerLevel: room.getMemberPowerLevel(member.userId),
+		}));
+	}
+
 	// ─────────────────────────────────────────────────────────
 	// Cleanup
 	// ─────────────────────────────────────────────────────────
@@ -417,18 +675,52 @@ class MatrixStore {
 	private eventToSimpleMessage(event: MatrixEvent): SimpleMessage {
 		const content = event.getContent();
 		const relatesTo = content['m.relates_to'];
+		const msgtype = content.msgtype || 'm.text';
+
+		// Check if message was redacted
+		const isRedacted = event.isRedacted();
+
+		// Extract media info for file/image/video/audio messages
+		let media: SimpleMessage['media'] = undefined;
+		if (['m.image', 'm.file', 'm.video', 'm.audio'].includes(msgtype) && content.url) {
+			const info = content.info || {};
+			media = {
+				mxcUrl: content.url,
+				mimetype: info.mimetype,
+				size: info.size,
+				width: info.w,
+				height: info.h,
+				filename: content.filename || content.body,
+				thumbnailUrl: info.thumbnail_url,
+				duration: info.duration,
+			};
+		}
+
+		// Get reply-to body if this is a reply
+		let replyToBody: string | undefined;
+		const replyToId = relatesTo?.['m.in_reply_to']?.event_id;
+		if (replyToId) {
+			const room = this._client?.getRoom(event.getRoomId() || '');
+			const replyEvent = room?.findEventById(replyToId);
+			if (replyEvent) {
+				replyToBody = replyEvent.getContent().body;
+			}
+		}
 
 		return {
 			id: event.getId() || '',
 			sender: event.getSender() || '',
 			senderName: this.getSenderName(event),
-			body: content.body || '',
+			body: isRedacted ? 'Message deleted' : (content.body || ''),
 			formattedBody: content.formatted_body,
 			timestamp: event.getTs(),
-			type: content.msgtype || 'm.text',
+			type: msgtype,
 			isOwn: event.getSender() === this._client?.getUserId(),
-			replyTo: relatesTo?.['m.in_reply_to']?.event_id,
+			replyTo: replyToId,
+			replyToBody,
 			edited: !!event.replacingEvent(),
+			redacted: isRedacted,
+			media,
 		};
 	}
 
diff --git a/apps/matrix/apps/web/src/lib/matrix/types.ts b/apps/matrix/apps/web/src/lib/matrix/types.ts
index 65c353180..8259373a4 100644
--- a/apps/matrix/apps/web/src/lib/matrix/types.ts
+++ b/apps/matrix/apps/web/src/lib/matrix/types.ts
@@ -15,6 +15,20 @@ export interface MatrixCredentials {
 	deviceId: string;
 }
 
+/**
+ * Media info for files/images
+ */
+export interface MediaInfo {
+	mxcUrl: string;
+	mimetype?: string;
+	size?: number;
+	width?: number;
+	height?: number;
+	filename?: string;
+	thumbnailUrl?: string;
+	duration?: number; // For audio/video
+}
+
 /**
  * Simplified message for UI rendering
  */
@@ -28,7 +42,10 @@ export interface SimpleMessage {
 	type: MessageType;
 	isOwn: boolean;
 	replyTo?: string;
+	replyToBody?: string;
 	edited?: boolean;
+	redacted?: boolean;
+	media?: MediaInfo;
 }
 
 export type MessageType = 'm.text' | 'm.image' | 'm.file' | 'm.audio' | 'm.video' | 'm.emote' | 'm.notice';
diff --git a/apps/matrix/apps/web/src/routes/(app)/chat/+page.svelte b/apps/matrix/apps/web/src/routes/(app)/chat/+page.svelte
index 8d8fe32ee..4e1428bd9 100644
--- a/apps/matrix/apps/web/src/routes/(app)/chat/+page.svelte
+++ b/apps/matrix/apps/web/src/routes/(app)/chat/+page.svelte
@@ -1,10 +1,18 @@
 <script lang="ts">
-	import { matrixStore } from '$lib/matrix';
+	import { matrixStore, type SimpleMessage } from '$lib/matrix';
 	import { RoomList, RoomHeader, Timeline, MessageInput } from '$lib/components/chat';
+	import CreateRoomDialog from '$lib/components/chat/CreateRoomDialog.svelte';
+	import RoomSettingsPanel from '$lib/components/chat/RoomSettingsPanel.svelte';
 	import { goto } from '$app/navigation';
-	import { Settings, LogOut, MessageSquare } from 'lucide-svelte';
+	import { Settings, LogOut, MessageSquare, Plus } from 'lucide-svelte';
 
 	let sidebarOpen = $state(true);
+	let showCreateRoom = $state(false);
+	let showRoomSettings = $state(false);
+
+	// Reply/Edit state
+	let replyTo = $state<SimpleMessage | null>(null);
+	let editMessage = $state<SimpleMessage | null>(null);
 
 	function toggleSidebar() {
 		sidebarOpen = !sidebarOpen;
@@ -14,6 +22,20 @@
 		matrixStore.logout();
 		goto('/login');
 	}
+
+	function handleReply(message: SimpleMessage) {
+		editMessage = null;
+		replyTo = message;
+	}
+
+	function handleEdit(message: SimpleMessage) {
+		replyTo = null;
+		editMessage = message;
+	}
+
+	function handleRoomCreated(roomId: string) {
+		matrixStore.selectRoom(roomId);
+	}
 </script>
 
 <div class="flex h-screen overflow-hidden bg-base-100">
@@ -29,27 +51,36 @@
 				<MessageSquare class="h-6 w-6 text-primary" />
 				<h1 class="text-xl font-bold">Mana Matrix</h1>
 			</div>
-			<div class="dropdown dropdown-end">
-				<button tabindex="0" class="btn btn-ghost btn-sm btn-circle">
-					<Settings class="h-5 w-5" />
-				</button>
-				<ul
-					tabindex="0"
-					class="dropdown-content menu rounded-box z-50 w-52 bg-base-100 p-2 shadow-lg"
+			<div class="flex items-center gap-1">
+				<button
+					class="btn btn-ghost btn-sm btn-circle"
+					title="Neuer Chat"
+					onclick={() => (showCreateRoom = true)}
 				>
-					<li>
-						<a href="/settings">
-							<Settings class="h-4 w-4" />
-							Settings
-						</a>
-					</li>
-					<li>
-						<button onclick={handleLogout} class="text-error">
-							<LogOut class="h-4 w-4" />
-							Sign out
-						</button>
-					</li>
-				</ul>
+					<Plus class="h-5 w-5" />
+				</button>
+				<div class="dropdown dropdown-end">
+					<button tabindex="0" class="btn btn-ghost btn-sm btn-circle">
+						<Settings class="h-5 w-5" />
+					</button>
+					<ul
+						tabindex="0"
+						class="dropdown-content menu rounded-box z-50 w-52 bg-base-100 p-2 shadow-lg"
+					>
+						<li>
+							<a href="/settings">
+								<Settings class="h-4 w-4" />
+								Einstellungen
+							</a>
+						</li>
+						<li>
+							<button onclick={handleLogout} class="text-error">
+								<LogOut class="h-4 w-4" />
+								Abmelden
+							</button>
+						</li>
+					</ul>
+				</div>
 			</div>
 		</header>
 
@@ -58,13 +89,16 @@
 			<p class="truncate text-sm font-medium">{matrixStore.userId}</p>
 			<p class="flex items-center gap-1 text-xs text-base-content/60">
 				<span class="h-2 w-2 rounded-full bg-success"></span>
-				{matrixStore.syncState === 'SYNCING' ? 'Connected' : matrixStore.syncState}
+				{matrixStore.syncState === 'SYNCING' ? 'Verbunden' : matrixStore.syncState}
+				{#if matrixStore.totalUnreadCount > 0}
+					<span class="ml-auto badge badge-primary badge-xs">{matrixStore.totalUnreadCount}</span>
+				{/if}
 			</p>
 		</div>
 
 		<!-- Room List -->
 		<div class="flex-1 overflow-hidden">
-			<RoomList />
+			<RoomList onCreateRoom={() => (showCreateRoom = true)} />
 		</div>
 	</aside>
 
@@ -72,34 +106,57 @@
 	<main class="flex flex-1 flex-col overflow-hidden">
 		{#if matrixStore.currentRoom}
 			<!-- Room Header -->
-			<RoomHeader onMenuClick={toggleSidebar} />
+			<RoomHeader
+				onMenuClick={toggleSidebar}
+				onInfoClick={() => (showRoomSettings = true)}
+			/>
 
 			<!-- Timeline -->
-			<Timeline />
+			<Timeline {onReply} onEdit={handleEdit} />
 
 			<!-- Message Input -->
-			<MessageInput />
+			<MessageInput
+				{replyTo}
+				{editMessage}
+				onCancelReply={() => (replyTo = null)}
+				onCancelEdit={() => (editMessage = null)}
+			/>
 		{:else}
 			<!-- No Room Selected -->
 			<div class="flex flex-1 flex-col items-center justify-center gap-4 p-8 text-base-content/50">
 				<MessageSquare class="h-16 w-16" />
 				<div class="text-center">
-					<h2 class="text-xl font-semibold text-base-content">Welcome to Mana Matrix</h2>
-					<p class="mt-2">Select a conversation from the sidebar to start chatting</p>
+					<h2 class="text-xl font-semibold text-base-content">Willkommen bei Mana Matrix</h2>
+					<p class="mt-2">Wähle eine Unterhaltung aus der Seitenleiste oder starte einen neuen Chat</p>
 				</div>
 
+				<button class="btn btn-primary mt-4" onclick={() => (showCreateRoom = true)}>
+					<Plus class="h-4 w-4" />
+					Neuer Chat
+				</button>
+
 				<!-- Stats -->
 				<div class="mt-8 flex gap-8 text-center">
 					<div>
 						<p class="text-3xl font-bold text-base-content">{matrixStore.rooms.length}</p>
-						<p class="text-sm">Rooms</p>
+						<p class="text-sm">Räume</p>
 					</div>
 					<div>
 						<p class="text-3xl font-bold text-base-content">{matrixStore.totalUnreadCount}</p>
-						<p class="text-sm">Unread</p>
+						<p class="text-sm">Ungelesen</p>
 					</div>
 				</div>
 			</div>
 		{/if}
 	</main>
+
+	<!-- Room Settings Panel -->
+	<RoomSettingsPanel open={showRoomSettings} onClose={() => (showRoomSettings = false)} />
 </div>
+
+<!-- Create Room Dialog -->
+<CreateRoomDialog
+	open={showCreateRoom}
+	onClose={() => (showCreateRoom = false)}
+	onCreated={handleRoomCreated}
+/>