Improved file naming & structure for UI components

tools/server/webui/src/lib/components/app/chat/ChatAttachments/ChatAttachmentPreview.svelte

@@ -0,0 +1,273 @@
+<script lang="ts">
+	import { FileText, Image, Music, FileIcon, Eye } from '@lucide/svelte';
+	import { FileTypeCategory, MimeTypeApplication } from '$lib/enums/files';
+	import { convertPDFToImage } from '$lib/utils/pdf-processing';
+	import { Button } from '$lib/components/ui/button';
+	import { getFileTypeCategory } from '$lib/utils/file-type';
+
+	interface Props {
+		// Either an uploaded file or a stored attachment
+		uploadedFile?: ChatUploadedFile;
+		attachment?: DatabaseMessageExtra;
+		// For uploaded files
+		preview?: string;
+		name?: string;
+		type?: string;
+		textContent?: string;
+	}
+
+	let { uploadedFile, attachment, preview, name, type, textContent }: Props = $props();
+
+	let displayName = $derived(uploadedFile?.name || attachment?.name || name || 'Unknown File');
+
+	let displayPreview = $derived(
+		uploadedFile?.preview || (attachment?.type === 'imageFile' ? attachment.base64Url : preview)
+	);
+
+	let displayType = $derived(
+		uploadedFile?.type ||
+			(attachment?.type === 'imageFile'
+				? 'image'
+				: attachment?.type === 'textFile'
+					? 'text'
+					: attachment?.type === 'audioFile'
+						? attachment.mimeType || 'audio'
+						: attachment?.type === 'pdfFile'
+							? MimeTypeApplication.PDF
+							: type || 'unknown')
+	);
+
+	let displayTextContent = $derived(
+		uploadedFile?.textContent ||
+			(attachment?.type === 'textFile'
+				? attachment.content
+				: attachment?.type === 'pdfFile'
+					? attachment.content
+					: textContent)
+	);
+
+	let isAudio = $derived(
+		getFileTypeCategory(displayType) === FileTypeCategory.AUDIO || displayType === 'audio'
+	);
+
+	let isImage = $derived(
+		getFileTypeCategory(displayType) === FileTypeCategory.IMAGE || displayType === 'image'
+	);
+
+	let isPdf = $derived(displayType === MimeTypeApplication.PDF);
+
+	let isText = $derived(
+		getFileTypeCategory(displayType) === FileTypeCategory.TEXT || displayType === 'text'
+	);
+
+	let IconComponent = $derived(() => {
+		if (isImage) return Image;
+		if (isText || isPdf) return FileText;
+		if (isAudio) return Music;
+
+		return FileIcon;
+	});
+
+	let pdfViewMode = $state<'text' | 'pages'>('pages');
+
+	let pdfImages = $state<string[]>([]);
+
+	let pdfImagesLoading = $state(false);
+
+	let pdfImagesError = $state<string | null>(null);
+
+	async function loadPdfImages() {
+		if (!isPdf || pdfImages.length > 0 || pdfImagesLoading) return;
+
+		pdfImagesLoading = true;
+		pdfImagesError = null;
+
+		try {
+			let file: File | null = null;
+
+			if (uploadedFile?.file) {
+				file = uploadedFile.file;
+			} else if (attachment?.type === 'pdfFile') {
+				// Check if we have pre-processed images
+				if (attachment.images && Array.isArray(attachment.images)) {
+					pdfImages = attachment.images;
+					return;
+				}
+
+				// Convert base64 back to File for processing
+				if (attachment.base64Data) {
+					const base64Data = attachment.base64Data;
+					const byteCharacters = atob(base64Data);
+					const byteNumbers = new Array(byteCharacters.length);
+					for (let i = 0; i < byteCharacters.length; i++) {
+						byteNumbers[i] = byteCharacters.charCodeAt(i);
+					}
+					const byteArray = new Uint8Array(byteNumbers);
+					file = new File([byteArray], displayName, { type: MimeTypeApplication.PDF });
+				}
+			}
+
+			if (file) {
+				pdfImages = await convertPDFToImage(file);
+			} else {
+				throw new Error('No PDF file available for conversion');
+			}
+		} catch (error) {
+			pdfImagesError = error instanceof Error ? error.message : 'Failed to load PDF images';
+		} finally {
+			pdfImagesLoading = false;
+		}
+	}
+
+	export function reset() {
+		pdfImages = [];
+		pdfImagesLoading = false;
+		pdfImagesError = null;
+		pdfViewMode = 'pages';
+	}
+
+	$effect(() => {
+		if (isPdf && pdfViewMode === 'pages') {
+			loadPdfImages();
+		}
+	});
+</script>
+
+<div class="space-y-4">
+	<div class="flex items-center justify-end gap-6">
+		{#if isPdf}
+			<div class="flex items-center gap-2">
+				<Button
+					variant={pdfViewMode === 'text' ? 'default' : 'outline'}
+					size="sm"
+					onclick={() => (pdfViewMode = 'text')}
+					disabled={pdfImagesLoading}
+				>
+					<FileText class="mr-1 h-4 w-4" />
+
+					Text
+				</Button>
+
+				<Button
+					variant={pdfViewMode === 'pages' ? 'default' : 'outline'}
+					size="sm"
+					onclick={() => {
+						pdfViewMode = 'pages';
+						loadPdfImages();
+					}}
+					disabled={pdfImagesLoading}
+				>
+					{#if pdfImagesLoading}
+						<div
+							class="mr-1 h-4 w-4 animate-spin rounded-full border-2 border-current border-t-transparent"
+						></div>
+					{:else}
+						<Eye class="mr-1 h-4 w-4" />
+					{/if}
+
+					Pages
+				</Button>
+			</div>
+		{/if}
+	</div>
+
+	<div class="flex-1 overflow-auto">
+		{#if isImage && displayPreview}
+			<div class="flex items-center justify-center">
+				<img
+					src={displayPreview}
+					alt={displayName}
+					class="max-h-full rounded-lg object-contain shadow-lg"
+				/>
+			</div>
+		{:else if isPdf && pdfViewMode === 'pages'}
+			{#if pdfImagesLoading}
+				<div class="flex items-center justify-center p-8">
+					<div class="text-center">
+						<div
+							class="mx-auto mb-4 h-8 w-8 animate-spin rounded-full border-4 border-primary border-t-transparent"
+						></div>
+
+						<p class="text-muted-foreground">Converting PDF to images...</p>
+					</div>
+				</div>
+			{:else if pdfImagesError}
+				<div class="flex items-center justify-center p-8">
+					<div class="text-center">
+						<FileText class="mx-auto mb-4 h-16 w-16 text-muted-foreground" />
+
+						<p class="mb-4 text-muted-foreground">Failed to load PDF images</p>
+
+						<p class="text-sm text-muted-foreground">{pdfImagesError}</p>
+
+						<Button class="mt-4" onclick={() => (pdfViewMode = 'text')}>View as Text</Button>
+					</div>
+				</div>
+			{:else if pdfImages.length > 0}
+				<div class="max-h-[70vh] space-y-4 overflow-auto">
+					{#each pdfImages as image, index (image)}
+						<div class="text-center">
+							<p class="mb-2 text-sm text-muted-foreground">Page {index + 1}</p>
+
+							<img
+								src={image}
+								alt="PDF Page {index + 1}"
+								class="mx-auto max-w-full rounded-lg shadow-lg"
+							/>
+						</div>
+					{/each}
+				</div>
+			{:else}
+				<div class="flex items-center justify-center p-8">
+					<div class="text-center">
+						<FileText class="mx-auto mb-4 h-16 w-16 text-muted-foreground" />
+
+						<p class="mb-4 text-muted-foreground">No PDF pages available</p>
+					</div>
+				</div>
+			{/if}
+		{:else if (isText || (isPdf && pdfViewMode === 'text')) && displayTextContent}
+			<div
+				class="max-h-[60vh] overflow-auto rounded-lg bg-muted p-4 font-mono text-sm break-words whitespace-pre-wrap"
+			>
+				{displayTextContent}
+			</div>
+		{:else if isAudio}
+			<div class="flex items-center justify-center p-8">
+				<div class="w-full max-w-md text-center">
+					<Music class="mx-auto mb-4 h-16 w-16 text-muted-foreground" />
+
+					{#if attachment?.type === 'audioFile'}
+						<audio
+							controls
+							class="mb-4 w-full"
+							src="data:{attachment.mimeType};base64,{attachment.base64Data}"
+						>
+							Your browser does not support the audio element.
+						</audio>
+					{:else if uploadedFile?.preview}
+						<audio controls class="mb-4 w-full" src={uploadedFile.preview}>
+							Your browser does not support the audio element.
+						</audio>
+					{:else}
+						<p class="mb-4 text-muted-foreground">Audio preview not available</p>
+					{/if}
+
+					<p class="text-sm text-muted-foreground">
+						{displayName}
+					</p>
+				</div>
+			</div>
+		{:else}
+			<div class="flex items-center justify-center p-8">
+				<div class="text-center">
+					{#if IconComponent}
+						<IconComponent class="mx-auto mb-4 h-16 w-16 text-muted-foreground" />
+					{/if}
+
+					<p class="mb-4 text-muted-foreground">Preview not available for this file type</p>
+				</div>
+			</div>
+		{/if}
+	</div>
+</div>