llama.cpp/tools/server/webui/src/lib/components/app/mcp/McpResourceBrowser.svelte

403 lines
12 KiB
Svelte

<script lang="ts">
import {
FileText,
FolderOpen,
ChevronDown,
ChevronRight,
RefreshCw,
Loader2,
Database,
File,
Image,
Code
} from '@lucide/svelte';
import { Checkbox } from '$lib/components/ui/checkbox';
import * as Collapsible from '$lib/components/ui/collapsible';
import { Button } from '$lib/components/ui/button';
import { cn } from '$lib/components/ui/utils';
import { mcpStore } from '$lib/stores/mcp.svelte';
import {
mcpResources,
mcpTotalResourceCount,
mcpResourcesLoading
} from '$lib/stores/mcp-resources.svelte';
import { getFaviconUrl } from '$lib/utils';
import { TruncatedText } from '$lib/components/app';
import * as Tooltip from '$lib/components/ui/tooltip';
import type { MCPResource, MCPResourceInfo, MCPServerResources } from '$lib/types';
interface Props {
onSelect?: (resource: MCPResourceInfo, shiftKey?: boolean) => void;
onToggle?: (resource: MCPResourceInfo, checked: boolean) => void;
onAttach?: (resource: MCPResourceInfo) => void;
selectedUris?: Set<string>;
expandToUri?: string;
class?: string;
}
let {
onSelect,
onToggle,
onAttach,
selectedUris = new Set(),
expandToUri,
class: className
}: Props = $props();
let expandedServers = $state<Set<string>>(new Set());
let expandedFolders = $state<Set<string>>(new Set());
let hasAutoExpanded = $state(false);
const resources = $derived(mcpResources());
const isLoading = $derived(mcpResourcesLoading());
$effect(() => {
if (expandToUri && resources.size > 0 && !hasAutoExpanded) {
autoExpandToResource(expandToUri);
hasAutoExpanded = true;
}
});
function autoExpandToResource(uri: string) {
for (const [serverName, serverRes] of resources.entries()) {
const resource = serverRes.resources.find((r) => r.uri === uri);
if (resource) {
const newExpandedServers = new Set(expandedServers);
newExpandedServers.add(serverName);
expandedServers = newExpandedServers;
const pathParts = parseResourcePath(uri);
if (pathParts.length > 1) {
const newExpandedFolders = new Set(expandedFolders);
let currentPath = '';
for (let i = 0; i < pathParts.length - 1; i++) {
currentPath = `${currentPath}/${pathParts[i]}`;
const folderId = `${serverName}:${currentPath}`;
newExpandedFolders.add(folderId);
}
expandedFolders = newExpandedFolders;
}
break;
}
}
}
function toggleServer(serverName: string) {
const newSet = new Set(expandedServers);
if (newSet.has(serverName)) {
newSet.delete(serverName);
} else {
newSet.add(serverName);
}
expandedServers = newSet;
}
function toggleFolder(folderId: string) {
const newSet = new Set(expandedFolders);
if (newSet.has(folderId)) {
newSet.delete(folderId);
} else {
newSet.add(folderId);
}
expandedFolders = newSet;
}
interface ResourceTreeNode {
name: string;
resource?: MCPResourceInfo;
children: Map<string, ResourceTreeNode>;
}
function parseResourcePath(uri: string): string[] {
// Parse URI like "svelte://cli/overview.md" -> ["cli", "overview.md"]
try {
// Remove protocol (e.g., "svelte://")
const withoutProtocol = uri.replace(/^[a-z]+:\/\//, '');
// Split by / and filter empty parts
return withoutProtocol.split('/').filter((p) => p.length > 0);
} catch {
return [uri];
}
}
function getDisplayName(pathPart: string): string {
// Convert filename to display name: "overview.md" -> "Overview"
const withoutExt = pathPart.replace(/\.[^.]+$/, '');
// Convert kebab-case or snake_case to Title Case
return withoutExt
.split(/[-_]/)
.map((word) => word.charAt(0).toUpperCase() + word.slice(1))
.join(' ');
}
function buildResourceTree(resourceList: MCPResource[], serverName: string): ResourceTreeNode {
const root: ResourceTreeNode = { name: 'root', children: new Map() };
for (const resource of resourceList) {
const pathParts = parseResourcePath(resource.uri);
let current = root;
// Navigate/create folders for all but the last part
for (let i = 0; i < pathParts.length - 1; i++) {
const part = pathParts[i];
if (!current.children.has(part)) {
current.children.set(part, { name: part, children: new Map() });
}
current = current.children.get(part)!;
}
// Add the resource at the leaf
const fileName = pathParts[pathParts.length - 1] || resource.name;
current.children.set(resource.uri, {
name: fileName,
resource: { ...resource, serverName },
children: new Map()
});
}
return root;
}
function countTreeResources(node: ResourceTreeNode): number {
if (node.resource) return 1;
let count = 0;
for (const child of node.children.values()) {
count += countTreeResources(child);
}
return count;
}
function handleRefresh() {
mcpStore.fetchAllResources();
}
function handleResourceClick(resource: MCPResourceInfo, event: MouseEvent) {
onSelect?.(resource, event.shiftKey);
}
function handleCheckboxChange(resource: MCPResourceInfo, checked: boolean) {
onToggle?.(resource, checked);
}
function handleAttachClick(e: Event, resource: MCPResourceInfo) {
e.stopPropagation();
onAttach?.(resource);
}
function getResourceIcon(resource: MCPResourceInfo) {
const mimeType = resource.mimeType?.toLowerCase() || '';
const uri = resource.uri.toLowerCase();
if (mimeType.startsWith('image/') || /\.(png|jpg|jpeg|gif|svg|webp)$/.test(uri)) {
return Image;
}
if (
mimeType.includes('json') ||
mimeType.includes('javascript') ||
mimeType.includes('typescript') ||
/\.(js|ts|json|yaml|yml|xml|html|css)$/.test(uri)
) {
return Code;
}
if (mimeType.includes('text') || /\.(txt|md|log)$/.test(uri)) {
return FileText;
}
if (uri.includes('database') || uri.includes('db://')) {
return Database;
}
return File;
}
function isResourceSelected(resource: MCPResourceInfo): boolean {
return selectedUris.has(resource.uri);
}
function getServerDisplayName(serverId: string): string {
const server = mcpStore.getServerById(serverId);
return server ? mcpStore.getServerLabel(server) : serverId;
}
function getServerFavicon(serverId: string): string | null {
const server = mcpStore.getServerById(serverId);
return server ? getFaviconUrl(server.url) : null;
}
</script>
{#snippet renderTreeNode(
node: ResourceTreeNode,
serverName: string,
depth: number,
parentPath: string
)}
{@const isFolder = !node.resource && node.children.size > 0}
{@const folderId = `${serverName}:${parentPath}/${node.name}`}
{@const isFolderExpanded = expandedFolders.has(folderId)}
{#if isFolder}
{@const folderCount = countTreeResources(node)}
<Collapsible.Root open={isFolderExpanded} onOpenChange={() => toggleFolder(folderId)}>
<Collapsible.Trigger
class="flex w-full items-center gap-2 rounded px-2 py-1 text-sm hover:bg-muted/50"
>
{#if isFolderExpanded}
<ChevronDown class="h-3 w-3" />
{:else}
<ChevronRight class="h-3 w-3" />
{/if}
<FolderOpen class="h-3.5 w-3.5 text-muted-foreground" />
<span class="font-medium">{node.name}</span>
<span class="text-xs text-muted-foreground">({folderCount})</span>
</Collapsible.Trigger>
<Collapsible.Content>
<div class="ml-4 flex flex-col gap-0.5 border-l border-border/50 pl-2">
{#each [...node.children.values()].sort((a, b) => {
// Folders first, then files
const aIsFolder = !a.resource && a.children.size > 0;
const bIsFolder = !b.resource && b.children.size > 0;
if (aIsFolder && !bIsFolder) return -1;
if (!aIsFolder && bIsFolder) return 1;
return a.name.localeCompare(b.name);
}) as child}
{@render renderTreeNode(child, serverName, depth + 1, `${parentPath}/${node.name}`)}
{/each}
</div>
</Collapsible.Content>
</Collapsible.Root>
{:else if node.resource}
{@const resource = node.resource}
{@const ResourceIcon = getResourceIcon(resource)}
{@const isSelected = isResourceSelected(resource)}
{@const displayName = resource.title || getDisplayName(node.name)}
<div class="group flex w-full items-center gap-2">
{#if onToggle}
<Checkbox
checked={isSelected}
onCheckedChange={(checked) => handleCheckboxChange(resource, checked === true)}
class="h-4 w-4"
/>
{/if}
<button
class={cn(
'flex flex-1 items-center gap-2 rounded px-2 py-1 text-left text-sm transition-colors',
'hover:bg-muted/50',
isSelected && 'bg-muted'
)}
onclick={(e) => handleResourceClick(resource, e)}
>
<ResourceIcon class="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
<Tooltip.Root>
<Tooltip.Trigger class="min-w-0 flex-1 text-left">
<TruncatedText text={displayName} />
</Tooltip.Trigger>
<Tooltip.Content class="z-[9999]">
<p>{displayName}</p>
</Tooltip.Content>
</Tooltip.Root>
{#if onAttach}
<Button
variant="ghost"
size="sm"
class="h-5 px-1.5 text-xs opacity-0 transition-opacity group-hover:opacity-100 hover:opacity-100"
onclick={(e) => handleAttachClick(e, resource)}
>
Attach
</Button>
{/if}
</button>
</div>
{/if}
{/snippet}
<div class={cn('flex flex-col gap-2', className)}>
<div class="flex items-center justify-between">
<h3 class="text-sm font-medium">Available resources</h3>
<Button
variant="ghost"
size="sm"
class="h-7 w-7 p-0"
onclick={handleRefresh}
disabled={isLoading}
title="Refresh resources"
>
{#if isLoading}
<Loader2 class="h-3.5 w-3.5 animate-spin" />
{:else}
<RefreshCw class="h-3.5 w-3.5" />
{/if}
</Button>
</div>
<div class="flex flex-col gap-1">
{#if resources.size === 0}
<div class="py-4 text-center text-sm text-muted-foreground">
{#if isLoading}
Loading resources...
{:else}
No resources available
{/if}
</div>
{:else}
{#each [...resources.entries()] as [serverName, serverRes]}
{@const isExpanded = expandedServers.has(serverName)}
{@const hasResources = serverRes.resources.length > 0}
{@const displayName = getServerDisplayName(serverName)}
{@const favicon = getServerFavicon(serverName)}
{@const resourceTree = buildResourceTree(serverRes.resources, serverName)}
<Collapsible.Root open={isExpanded} onOpenChange={() => toggleServer(serverName)}>
<Collapsible.Trigger
class="flex w-full items-center gap-2 rounded px-2 py-1.5 text-sm hover:bg-muted/50"
>
{#if isExpanded}
<ChevronDown class="h-3.5 w-3.5" />
{:else}
<ChevronRight class="h-3.5 w-3.5" />
{/if}
{#if favicon}
<img
src={favicon}
alt=""
class="h-4 w-4 shrink-0 rounded-sm"
onerror={(e) => {
(e.currentTarget as HTMLImageElement).style.display = 'none';
}}
/>
{/if}
<span class="font-medium">{displayName}</span>
<span class="text-xs text-muted-foreground">
({serverRes.resources.length})
</span>
{#if serverRes.loading}
<Loader2 class="ml-auto h-3 w-3 animate-spin text-muted-foreground" />
{/if}
</Collapsible.Trigger>
<Collapsible.Content>
<div class="ml-4 flex flex-col gap-0.5 border-l border-border/50 pl-2">
{#if serverRes.error}
<div class="py-1 text-xs text-red-500">
Error: {serverRes.error}
</div>
{:else if !hasResources}
<div class="py-1 text-xs text-muted-foreground">No resources</div>
{:else}
{#each [...resourceTree.children.values()].sort((a, b) => {
const aIsFolder = !a.resource && a.children.size > 0;
const bIsFolder = !b.resource && b.children.size > 0;
if (aIsFolder && !bIsFolder) return -1;
if (!aIsFolder && bIsFolder) return 1;
return a.name.localeCompare(b.name);
}) as child}
{@render renderTreeNode(child, serverName, 1, '')}
{/each}
{/if}
</div>
</Collapsible.Content>
</Collapsible.Root>
{/each}
{/if}
</div>
</div>