feat: add shadcn admin workspace

admin/src/lib/api.ts

@@ -0,0 +1,87 @@
+import type {
+  AdminAiReindexResponse,
+  AdminDashboardResponse,
+  AdminSessionResponse,
+  AdminSiteSettingsResponse,
+  SiteSettingsPayload,
+} from '@/lib/types'
+
+const API_BASE = import.meta.env.VITE_API_BASE?.trim() || ''
+
+export class ApiError extends Error {
+  status: number
+
+  constructor(message: string, status: number) {
+    super(message)
+    this.name = 'ApiError'
+    this.status = status
+  }
+}
+
+async function readErrorMessage(response: Response) {
+  const text = await response.text().catch(() => '')
+
+  if (!text) {
+    return `Request failed with status ${response.status}.`
+  }
+
+  try {
+    const parsed = JSON.parse(text) as { description?: string; error?: string; message?: string }
+    return parsed.description || parsed.error || parsed.message || text
+  } catch {
+    return text
+  }
+}
+
+async function request<T>(path: string, init?: RequestInit): Promise<T> {
+  const headers = new Headers(init?.headers)
+
+  if (init?.body && !(init.body instanceof FormData) && !headers.has('Content-Type')) {
+    headers.set('Content-Type', 'application/json')
+  }
+
+  const response = await fetch(`${API_BASE}${path}`, {
+    ...init,
+    headers,
+  })
+
+  if (!response.ok) {
+    throw new ApiError(await readErrorMessage(response), response.status)
+  }
+
+  if (response.status === 204) {
+    return undefined as T
+  }
+
+  const contentType = response.headers.get('content-type') || ''
+
+  if (contentType.includes('application/json')) {
+    return (await response.json()) as T
+  }
+
+  return (await response.text()) as T
+}
+
+export const adminApi = {
+  sessionStatus: () => request<AdminSessionResponse>('/api/admin/session'),
+  login: (payload: { username: string; password: string }) =>
+    request<AdminSessionResponse>('/api/admin/session/login', {
+      method: 'POST',
+      body: JSON.stringify(payload),
+    }),
+  logout: () =>
+    request<AdminSessionResponse>('/api/admin/session', {
+      method: 'DELETE',
+    }),
+  dashboard: () => request<AdminDashboardResponse>('/api/admin/dashboard'),
+  getSiteSettings: () => request<AdminSiteSettingsResponse>('/api/admin/site-settings'),
+  updateSiteSettings: (payload: SiteSettingsPayload) =>
+    request<AdminSiteSettingsResponse>('/api/admin/site-settings', {
+      method: 'PATCH',
+      body: JSON.stringify(payload),
+    }),
+  reindexAi: () =>
+    request<AdminAiReindexResponse>('/api/admin/ai/reindex', {
+      method: 'POST',
+    }),
+}