feat: add CASL authorization and AI configuration

apps/admin/src/pages/AiConfig/helpers.ts

@@ -0,0 +1,89 @@
+// ---------------------------------------------------------------------------
+// AiConfig helpers — pure functions, no React / DOM dependencies
+// ---------------------------------------------------------------------------
+
+export type AiProvider = 'OPENAI' | 'DEEPSEEK' | 'OPENAI_COMPATIBLE';
+
+export const PROVIDER_OPTIONS: { value: AiProvider; label: string }[] = [
+  { value: 'OPENAI', label: 'OpenAI' },
+  { value: 'DEEPSEEK', label: 'DeepSeek' },
+  { value: 'OPENAI_COMPATIBLE', label: 'OpenAI 兼容' },
+];
+
+export const PROVIDER_DEFAULTS: Record<AiProvider, string> = {
+  OPENAI: 'https://api.openai.com/v1',
+  DEEPSEEK: 'https://api.deepseek.com',
+  OPENAI_COMPATIBLE: '',
+} as const;
+
+export const FIXED_PROVIDERS: AiProvider[] = ['OPENAI', 'DEEPSEEK'];
+
+export function formatDateTime(iso: string | null): string {
+  if (!iso) return '-';
+  return new Date(iso).toLocaleString('zh-CN');
+}
+
+export function sourceLabel(source: string): string {
+  switch (source) {
+    case 'database':
+      return '数据库';
+    case 'environment':
+      return '环境变量';
+    default:
+      return '未配置';
+  }
+}
+
+export function sourceColor(source: string): 'green' | 'blue' | 'default' {
+  switch (source) {
+    case 'database':
+      return 'green';
+    case 'environment':
+      return 'blue';
+    default:
+      return 'default';
+  }
+}
+
+export function shouldAutoSwapBaseUrl(
+  provider: AiProvider,
+  currentBaseUrl: string,
+  lastProvider: AiProvider | null,
+): { baseUrl: string; shouldSwap: boolean } {
+  if (!lastProvider) {
+    return { baseUrl: PROVIDER_DEFAULTS[provider], shouldSwap: true };
+  }
+  const prevDefault = PROVIDER_DEFAULTS[lastProvider];
+  if (!currentBaseUrl || currentBaseUrl === prevDefault) {
+    return { baseUrl: PROVIDER_DEFAULTS[provider], shouldSwap: true };
+  }
+  return { baseUrl: currentBaseUrl, shouldSwap: false };
+}
+
+/** Extract a safe user-facing error message from any caught value */
+export function extractErrorMessage(err: unknown, fallback: string = '操作失败'): string {
+  let msg = '';
+
+  // axios-style error: { response: { data: { message: string } } }
+  if (err && typeof err === 'object' && 'response' in err) {
+    const resp: unknown = err.response;
+    if (resp && typeof resp === 'object' && 'data' in resp) {
+      const data: unknown = resp.data;
+      if (data && typeof data === 'object' && 'message' in data && typeof data.message === 'string') {
+        msg = data.message;
+      }
+    }
+  }
+
+  // standard Error or any object with a string message property
+  if (!msg && err && typeof err === 'object' && 'message' in err && typeof err.message === 'string') {
+    msg = err.message;
+  }
+
+  // sanitize: trim, collapse whitespace, strip newlines, truncate
+  const trimmed = msg.trim();
+  if (!trimmed) return fallback;
+
+  const singleLine = trimmed.replace(/[\n\r]+/g, ' ').replace(/ {2,}/g, ' ');
+  return singleLine.length > 120 ? singleLine.slice(0, 120) + '\u2026' : singleLine;
+}