feat(38-02): admin tag hooks + list page with tree view and quick-add

- Create useAdminTags.ts with 5 hooks (useAdminTags, useAdminTag, useCreateAdminTag, useUpdateAdminTag, useDeleteAdminTag)
- Dual query key invalidation on all mutations (admin-tags + tags)
- Create admin/tags.tsx with collapsible tree view, search/filter, quick-add form
- buildTree, flattenTree, filterTree utilities for hierarchy rendering
- Chevron expand/collapse with LucideIcon, depth-based indent
This commit is contained in:
2026-04-19 22:31:06 +02:00
parent 0de809d8cb
commit 1f8b85dc62
2 changed files with 379 additions and 0 deletions

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import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
import { ApiError, apiDelete, apiGet, apiPost, apiPut } from "../lib/api";
// ── Types ──────────────────────────────────────────────────────────
export interface AdminTag {
id: number;
name: string;
parentId: number | null;
itemCount: number;
}
export interface CreateTagPayload {
name: string;
parentId?: number | null;
}
export interface UpdateTagPayload {
name?: string;
parentId?: number | null;
}
// ── Hooks ──────────────────────────────────────────────────────────
export function useAdminTags() {
return useQuery({
queryKey: ["admin-tags"],
queryFn: () => apiGet<AdminTag[]>("/api/admin/tags"),
});
}
export function useAdminTag(id: number | null) {
return useQuery({
queryKey: ["admin-tag", id],
queryFn: () => apiGet<AdminTag>(`/api/admin/tags/${id}`),
enabled: id != null,
retry: (count, error) =>
error instanceof ApiError && error.status === 404 ? false : count < 3,
});
}
export function useCreateAdminTag() {
const queryClient = useQueryClient();
return useMutation({
mutationFn: (data: CreateTagPayload) =>
apiPost<AdminTag>("/api/admin/tags", data),
onSuccess: () => {
queryClient.invalidateQueries({ queryKey: ["admin-tags"] });
queryClient.invalidateQueries({ queryKey: ["tags"] });
},
});
}
export function useUpdateAdminTag() {
const queryClient = useQueryClient();
return useMutation({
mutationFn: ({ id, data }: { id: number; data: UpdateTagPayload }) =>
apiPut<AdminTag>(`/api/admin/tags/${id}`, data),
onSuccess: (_result, { id }) => {
queryClient.invalidateQueries({ queryKey: ["admin-tags"] });
queryClient.invalidateQueries({ queryKey: ["admin-tag", id] });
queryClient.invalidateQueries({ queryKey: ["tags"] });
},
});
}
export function useDeleteAdminTag() {
const queryClient = useQueryClient();
return useMutation({
mutationFn: (id: number) =>
apiDelete<{ success: boolean }>(`/api/admin/tags/${id}`),
onSuccess: () => {
queryClient.invalidateQueries({ queryKey: ["admin-tags"] });
queryClient.invalidateQueries({ queryKey: ["tags"] });
},
});
}

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import { createFileRoute, useNavigate } from "@tanstack/react-router";
import { useEffect, useState } from "react";
import {
useAdminTags,
useCreateAdminTag,
type AdminTag,
} from "../../hooks/useAdminTags";
import { LucideIcon } from "../../lib/iconData";
export const Route = createFileRoute("/admin/tags")({
component: AdminTagsPage,
});
// ── Tree utilities ─────────────────────────────────────────────────
interface TreeNode extends AdminTag {
children: TreeNode[];
depth: number;
}
function buildTree(tags: AdminTag[]): TreeNode[] {
const map = new Map<number, TreeNode>();
for (const tag of tags) {
map.set(tag.id, { ...tag, children: [], depth: 0 });
}
const roots: TreeNode[] = [];
for (const node of map.values()) {
if (node.parentId == null || !map.has(node.parentId)) {
node.depth = 0;
roots.push(node);
} else {
const parent = map.get(node.parentId)!;
node.depth = parent.depth + 1;
parent.children.push(node);
}
}
// Fix depths after assignment (parents may not have been processed yet)
function fixDepths(nodes: TreeNode[], depth: number) {
for (const node of nodes) {
node.depth = depth;
fixDepths(node.children, depth + 1);
}
}
fixDepths(roots, 0);
// Sort children alphabetically
function sortChildren(nodes: TreeNode[]) {
nodes.sort((a, b) => a.name.localeCompare(b.name));
for (const node of nodes) sortChildren(node.children);
}
sortChildren(roots);
return roots;
}
function flattenTree(nodes: TreeNode[], expanded: Set<number>): TreeNode[] {
const result: TreeNode[] = [];
for (const node of nodes) {
result.push(node);
if (node.children.length > 0 && expanded.has(node.id)) {
result.push(...flattenTree(node.children, expanded));
}
}
return result;
}
function filterTree(nodes: TreeNode[], query: string): TreeNode[] {
const q = query.toLowerCase();
const result: TreeNode[] = [];
for (const node of nodes) {
const filteredChildren = filterTree(node.children, query);
const nameMatches = node.name.toLowerCase().includes(q);
if (nameMatches || filteredChildren.length > 0) {
result.push({ ...node, children: filteredChildren });
}
}
return result;
}
// ── Page component ─────────────────────────────────────────────────
function AdminTagsPage() {
const navigate = useNavigate();
const { data, isLoading, isError } = useAdminTags();
const createMutation = useCreateAdminTag();
const [searchQuery, setSearchQuery] = useState("");
const [newName, setNewName] = useState("");
const [newParentId, setNewParentId] = useState<number | null>(null);
const [expanded, setExpanded] = useState<Set<number>>(new Set());
const [createError, setCreateError] = useState<string | null>(null);
// Initialize expanded to all parent IDs when data loads
useEffect(() => {
if (data) {
const parentIds = new Set(
data
.filter((tag) => data.some((t) => t.parentId === tag.id))
.map((tag) => tag.id),
);
setExpanded(parentIds);
}
}, [data]);
function toggleExpand(id: number) {
setExpanded((prev) => {
const next = new Set(prev);
if (next.has(id)) next.delete(id);
else next.add(id);
return next;
});
}
async function handleCreate(e: React.FormEvent) {
e.preventDefault();
if (!newName.trim()) return;
setCreateError(null);
try {
await createMutation.mutateAsync({
name: newName.trim(),
parentId: newParentId,
});
setNewName("");
setNewParentId(null);
} catch {
setCreateError("Failed to create tag. Please try again.");
}
}
const tree = data ? buildTree(data) : [];
const filtered = searchQuery ? filterTree(tree, searchQuery) : tree;
const rows = flattenTree(filtered, expanded);
const inputClass =
"w-full rounded-lg border border-gray-200 px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-300";
return (
<div>
{/* Header */}
<div className="flex items-center justify-between mb-4">
<div>
<h1 className="text-lg font-semibold text-gray-900">Tags</h1>
{!isLoading && data && (
<p className="text-sm text-gray-400 mt-0.5">{data.length} tags</p>
)}
</div>
<input
type="text"
placeholder="Search tags..."
value={searchQuery}
onChange={(e) => setSearchQuery(e.target.value)}
className="w-64 rounded-lg border border-gray-200 px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-300"
/>
</div>
{/* Quick-add form */}
<form onSubmit={handleCreate} className="flex items-center gap-3 mb-4">
<input
type="text"
value={newName}
onChange={(e) => setNewName(e.target.value)}
placeholder="Tag name..."
className={`flex-1 ${inputClass}`}
/>
<select
value={newParentId ?? ""}
onChange={(e) =>
setNewParentId(e.target.value ? Number(e.target.value) : null)
}
className="rounded-lg border border-gray-200 px-3 py-2 text-sm focus:outline-none bg-white appearance-none w-48"
>
<option value="">No parent (top-level)</option>
{data?.map((t) => (
<option key={t.id} value={t.id}>
{t.name}
</option>
))}
</select>
<button
type="submit"
disabled={createMutation.isPending || !newName.trim()}
className="px-4 py-2 rounded-lg bg-blue-600 hover:bg-blue-700 text-white text-sm font-medium transition-colors disabled:opacity-50"
>
{createMutation.isPending ? "Adding..." : "Add Tag"}
</button>
</form>
{createError && (
<p className="text-sm text-red-500 mt-1 mb-4">{createError}</p>
)}
{/* Error state */}
{isError && (
<div className="py-12 text-center text-sm text-red-500">
Failed to load tags. Please try again.
</div>
)}
{/* Tree table */}
{!isError && (
<div className="w-full overflow-hidden rounded-xl border border-gray-100 bg-white">
<table className="w-full text-sm">
<thead className="bg-gray-50 border-b border-gray-100">
<tr>
<th className="px-4 py-3 text-left text-xs font-semibold text-gray-400 uppercase tracking-wide">
Tag
</th>
<th className="px-4 py-3 text-left text-xs font-semibold text-gray-400 uppercase tracking-wide">
Items
</th>
<th className="px-4 py-3 text-right text-xs font-semibold text-gray-400 uppercase tracking-wide">
Actions
</th>
</tr>
</thead>
<tbody>
{isLoading
? Array.from({ length: 6 }).map((_, i) => (
<tr key={i} className="border-b border-gray-50">
{Array.from({ length: 3 }).map((_, j) => (
<td key={j} className="px-4 py-3">
<div className="h-4 bg-gray-100 rounded animate-pulse" />
</td>
))}
</tr>
))
: rows.map((node) => (
<tr
key={node.id}
className="border-b border-gray-50 hover:bg-gray-50 cursor-pointer transition-colors"
onClick={() =>
navigate({
to: "/admin/tags/$tagId",
params: { tagId: String(node.id) },
})
}
>
<td className="px-4 py-2.5">
<div
className="flex items-center gap-1"
style={{ paddingLeft: `${node.depth * 20}px` }}
>
{node.children.length > 0 ? (
<button
type="button"
onClick={(e) => {
e.stopPropagation();
toggleExpand(node.id);
}}
className="text-gray-400 hover:text-gray-600 w-5 h-5 flex items-center justify-center rounded hover:bg-gray-100 p-0.5"
>
<LucideIcon
name={
expanded.has(node.id)
? "chevron-down"
: "chevron-right"
}
size={14}
/>
</button>
) : (
<span className="w-5" />
)}
<span className="font-medium text-gray-900">
{node.name}
</span>
</div>
</td>
<td className="px-4 py-2.5 text-sm text-gray-400">
{node.itemCount} items
</td>
<td className="px-4 py-2.5 text-right">
<span className="text-xs text-gray-400">Edit</span>
</td>
</tr>
))}
</tbody>
</table>
{/* Empty state */}
{!isLoading && rows.length === 0 && !isError && (
<div className="py-12 text-center">
{searchQuery ? (
<p className="text-sm text-gray-900 font-medium">
No tags match your search.
</p>
) : (
<>
<p className="text-sm font-medium text-gray-900">No tags yet</p>
<p className="text-sm text-gray-400 mt-1">
Add your first tag using the form above.
</p>
</>
)}
</div>
)}
</div>
)}
</div>
);
}