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

<script lang="ts">
	import { onMount, onDestroy } from 'svelte';
	import { invoke } from '@tauri-apps/api/core';
	import { listen, type UnlistenFn } from '@tauri-apps/api/event';

	interface UpdateStatus {
		available: boolean;
		current_version: string;
		latest_version: string | null;
		release_notes: string | null;
		download_url: string | null;
		download_size: number | null;
	}

	interface DownloadProgress {
		downloaded: number;
		total: number;
		percent: number;
	}

	let showDialog = false;
	let updateInfo: UpdateStatus | null = null;
	let downloading = false;
	let progress: DownloadProgress | null = null;
	let error: string | null = null;
	let downloadedPath: string | null = null;

	let progressListener: UnlistenFn | null = null;

	onMount(async () => {
		// Update-Check beim Start (mit kurzer Verzögerung)
		setTimeout(checkForUpdate, 3000);

		// Progress-Events vom Backend
		progressListener = await listen<DownloadProgress>('update-progress', (event) => {
			progress = event.payload;
		});
	});

	onDestroy(() => {
		progressListener?.();
	});

	async function checkForUpdate() {
		try {
			const status: UpdateStatus = await invoke('check_for_update');
			if (status.available) {
				updateInfo = status;
				showDialog = true;
				console.log('🔄 Update verfügbar:', status.latest_version);
			}
		} catch (err) {
			console.debug('Update-Check fehlgeschlagen:', err);
		}
	}

	async function startDownload() {
		if (!updateInfo?.download_url) return;

		downloading = true;
		error = null;
		progress = { downloaded: 0, total: updateInfo.download_size || 0, percent: 0 };

		try {
			downloadedPath = await invoke('download_update', {
				downloadUrl: updateInfo.download_url,
			});
			console.log('✅ Download abgeschlossen:', downloadedPath);
		} catch (err) {
			error = String(err);
			downloading = false;
		}
	}

	async function applyUpdate() {
		if (!downloadedPath) return;

		try {
			await invoke('apply_update', { updatePath: downloadedPath });
			// App wird neugestartet, kein weiterer Code erreicht
		} catch (err) {
			error = String(err);
		}
	}

	function closeDialog() {
		showDialog = false;
		downloading = false;
		progress = null;
		error = null;
		downloadedPath = null;
	}

	function formatSize(bytes: number): string {
		if (bytes < 1024) return `${bytes} B`;
		if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
		return `${(bytes / 1024 / 1024).toFixed(1)} MB`;
	}
</script>

{#if showDialog && updateInfo}
	<!-- svelte-ignore a11y_click_events_have_key_events -->
	<!-- svelte-ignore a11y_no_static_element_interactions -->
	<div class="modal-overlay" on:click={closeDialog}>
		<div class="modal" on:click|stopPropagation>
			<div class="modal-header">
				<h2>🔄 Update verfügbar</h2>
				<button class="close-btn" on:click={closeDialog}>✕</button>
			</div>

			<div class="modal-body">
				<div class="version-info">
					<span class="current">v{updateInfo.current_version}</span>
					<span class="arrow">→</span>
					<span class="new">v{updateInfo.latest_version}</span>
				</div>

				{#if updateInfo.release_notes}
					<div class="release-notes">
						<h3>Änderungen:</h3>
						<div class="notes-content">
							{@html updateInfo.release_notes.replace(/\n/g, '<br>')}
						</div>
					</div>
				{/if}

				{#if updateInfo.download_size}
					<p class="download-size">
						Download: {formatSize(updateInfo.download_size)}
					</p>
				{/if}

				{#if downloading && progress}
					<div class="progress-container">
						<div class="progress-bar">
							<div class="progress-fill" style="width: {progress.percent}%"></div>
						</div>
						<span class="progress-text">
							{formatSize(progress.downloaded)} / {formatSize(progress.total)}
							({progress.percent.toFixed(0)}%)
						</span>
					</div>
				{/if}

				{#if error}
					<div class="error">
						{error}
					</div>
				{/if}
			</div>

			<div class="modal-footer">
				{#if downloadedPath}
					<button class="btn btn-primary" on:click={applyUpdate}>
						Jetzt installieren & neustarten
					</button>
				{:else if downloading}
					<button class="btn btn-disabled" disabled>
						Wird heruntergeladen...
					</button>
				{:else}
					<button class="btn btn-secondary" on:click={closeDialog}>
						Später
					</button>
					<button class="btn btn-primary" on:click={startDownload}>
						Jetzt aktualisieren
					</button>
				{/if}
			</div>
		</div>
	</div>
{/if}

<style>
	.modal-overlay {
		position: fixed;
		inset: 0;
		background: rgba(0, 0, 0, 0.6);
		display: flex;
		align-items: center;
		justify-content: center;
		z-index: 1000;
	}

	.modal {
		background: var(--bg-primary);
		border: 1px solid var(--border);
		border-radius: var(--radius-lg);
		width: 90%;
		max-width: 450px;
		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);
		border-bottom: 1px solid var(--border);
	}

	.modal-header h2 {
		font-size: 1rem;
		margin: 0;
	}

	.close-btn {
		background: none;
		border: none;
		font-size: 1.2rem;
		cursor: pointer;
		color: var(--text-secondary);
		padding: 4px;
	}

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

	.modal-body {
		padding: var(--spacing-md);
	}

	.version-info {
		display: flex;
		align-items: center;
		justify-content: center;
		gap: var(--spacing-md);
		font-size: 1.1rem;
		margin-bottom: var(--spacing-md);
	}

	.version-info .current {
		color: var(--text-secondary);
	}

	.version-info .arrow {
		color: var(--accent);
	}

	.version-info .new {
		color: var(--success);
		font-weight: 600;
	}

	.release-notes {
		background: var(--bg-secondary);
		border-radius: var(--radius-md);
		padding: var(--spacing-sm);
		margin-bottom: var(--spacing-md);
		max-height: 150px;
		overflow-y: auto;
	}

	.release-notes h3 {
		font-size: 0.8rem;
		color: var(--text-secondary);
		margin: 0 0 var(--spacing-xs) 0;
	}

	.notes-content {
		font-size: 0.85rem;
		line-height: 1.5;
	}

	.download-size {
		font-size: 0.8rem;
		color: var(--text-secondary);
		margin-bottom: var(--spacing-md);
	}

	.progress-container {
		margin: var(--spacing-md) 0;
	}

	.progress-bar {
		height: 8px;
		background: var(--bg-tertiary);
		border-radius: 4px;
		overflow: hidden;
	}

	.progress-fill {
		height: 100%;
		background: var(--accent);
		transition: width 0.2s ease;
	}

	.progress-text {
		display: block;
		text-align: center;
		font-size: 0.75rem;
		color: var(--text-secondary);
		margin-top: var(--spacing-xs);
	}

	.error {
		background: rgba(239, 68, 68, 0.1);
		border: 1px solid rgba(239, 68, 68, 0.3);
		color: #ef4444;
		padding: var(--spacing-sm);
		border-radius: var(--radius-md);
		font-size: 0.85rem;
		margin-top: var(--spacing-md);
	}

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

	.btn {
		padding: var(--spacing-sm) var(--spacing-md);
		border-radius: var(--radius-md);
		font-size: 0.85rem;
		font-weight: 500;
		cursor: pointer;
		transition: all 0.15s ease;
	}

	.btn-primary {
		background: var(--accent);
		color: white;
		border: none;
	}

	.btn-primary:hover {
		background: var(--accent-hover);
	}

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

	.btn-secondary:hover {
		background: var(--bg-hover);
	}

	.btn-disabled {
		background: var(--bg-tertiary);
		color: var(--text-secondary);
		border: none;
		cursor: not-allowed;
	}
</style>