fix(admin): city-scoped district pick and clearer overlap errors

Region partners only select districts under the chosen city; overlap errors name the occupying partner.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/admin-web/src/pages/CityPartnersPage.tsx

@@ -3,7 +3,6 @@ import { Link } from 'react-router-dom';
 import {
   Alert,
   Button,
-  Cascader,
   Checkbox,
   Descriptions,
   Drawer,
@@ -32,9 +31,10 @@ import {
   type PartnerPermissionKey,
 } from '@dukang/shared-types';
 import { request, type Paginated } from '../lib/api';
-import { CHINA_REGION_OPTIONS } from '../lib/china-region';
+import { districtCodeLabel } from '../lib/china-region';
 import { ADMIN_OPTIONS_PAGE_SIZE, fmtTime } from '../lib/constants';
 import { useAdminList } from '../lib/useAdminList';
+import CityDistrictMultiSelect from '../components/CityDistrictMultiSelect';
 import PartnerSubAccountList, { type PartnerSubAccountRow } from '../components/PartnerSubAccountList';
 
 type SubRow = PartnerSubAccountRow;
@@ -108,6 +108,15 @@ function commissionSumError(orderPercent: number, redeemPercent: number, maxRate
   return null;
 }
 
+function formatApiError(err: unknown): string | null {
+  if (err && typeof err === 'object' && 'errorFields' in err) return null;
+  if (!(err instanceof Error)) return '操作失败';
+  return err.message.replace(/\b(\d{6})\b/g, (code) => {
+    const label = districtCodeLabel(code);
+    return label !== code ? `${label}(${code})` : code;
+  });
+}
+
 export default function CityPartnersPage() {
   const [filterForm] = Form.useForm();
   const [editForm] = Form.useForm();
@@ -138,6 +147,7 @@ export default function CityPartnersPage() {
   const [editScopeType, setEditScopeType] = useState<CityPartnerScopeType>(CityPartnerScopeType.CITY_WIDE);
   const [maxCommissionRate, setMaxCommissionRate] = useState(0.05);
   const [createMaxRate, setCreateMaxRate] = useState(0.05);
+  const [createCityCode, setCreateCityCode] = useState<string | undefined>();
 
   const loadCities = useCallback(async () => {
     const res = await request<Paginated<CityOption>>(`/admin/cities?pageSize=${ADMIN_OPTIONS_PAGE_SIZE}`);
@@ -148,6 +158,10 @@ export default function CityPartnersPage() {
     void loadCities();
   }, [loadCities]);
 
+  const editCityCode = detail?.cityId
+    ? cities.find((c) => c.id === detail.cityId)?.code
+    : undefined;
+
   async function openPartner(id: string) {
     const d = await request<PartnerDetail>(`/admin/partners/${id}`);
     setDetail(d);
@@ -174,28 +188,33 @@ export default function CityPartnersPage() {
 
   async function savePartner() {
     if (!detail) return;
-    const v = await editForm.validateFields();
-    const err = commissionSumError(
-      Number(v.orderCommissionRate ?? 0),
-      Number(v.redeemCommissionRate ?? 0),
-      maxCommissionRate,
-    );
-    if (err) {
-      message.error(err);
-      return;
+    try {
+      const v = await editForm.validateFields();
+      const err = commissionSumError(
+        Number(v.orderCommissionRate ?? 0),
+        Number(v.redeemCommissionRate ?? 0),
+        maxCommissionRate,
+      );
+      if (err) {
+        message.error(err);
+        return;
+      }
+      await request(`/admin/partners/${detail.id}`, {
+        method: 'PUT',
+        body: JSON.stringify({
+          ...v,
+          orderCommissionRate: Number(v.orderCommissionRate ?? 0) / 100,
+          redeemCommissionRate: Number(v.redeemCommissionRate ?? 3) / 100,
+          districtCodes: editScopeType === CityPartnerScopeType.DISTRICT ? flattenDistrictCodes(v.districtCodes) : undefined,
+        }),
+      });
+      message.success('已保存');
+      setDrawerOpen(false);
+      void reload();
+    } catch (e) {
+      const msg = formatApiError(e);
+      if (msg) message.error(msg);
     }
-    await request(`/admin/partners/${detail.id}`, {
-      method: 'PUT',
-      body: JSON.stringify({
-        ...v,
-        orderCommissionRate: Number(v.orderCommissionRate ?? 0) / 100,
-        redeemCommissionRate: Number(v.redeemCommissionRate ?? 3) / 100,
-        districtCodes: editScopeType === CityPartnerScopeType.DISTRICT ? flattenDistrictCodes(v.districtCodes) : undefined,
-      }),
-    });
-    message.success('已保存');
-    setDrawerOpen(false);
-    void reload();
   }
 
   async function refreshPartnerContext(parentId: string) {
@@ -232,6 +251,9 @@ export default function CityPartnersPage() {
   }
 
   async function onCreateCityChange(cityId: string) {
+    createForm.setFieldsValue({ districtCodes: undefined });
+    const matched = cities.find((c) => c.id === cityId);
+    setCreateCityCode(matched?.code);
     const cityRes = await request<{ maxPartnerCommissionRate?: number }>(`/admin/cities/${cityId}`);
     setCreateMaxRate(Number(cityRes.maxPartnerCommissionRate ?? 0.05));
   }
@@ -302,6 +324,7 @@ export default function CityPartnersPage() {
             });
             setCreateScopeType(CityPartnerScopeType.CITY_WIDE);
             setCreateMaxRate(0.05);
+            setCreateCityCode(undefined);
             setCreateOpen(true);
           }}
         >
@@ -450,8 +473,12 @@ export default function CityPartnersPage() {
                         <Select options={SCOPE_OPTIONS} onChange={(v) => setEditScopeType(v)} />
                       </Form.Item>
                       {editScopeType === CityPartnerScopeType.DISTRICT && (
-                        <Form.Item name="districtCodes" label="区县">
-                          <Cascader options={CHINA_REGION_OPTIONS} multiple changeOnSelect />
+                        <Form.Item
+                          name="districtCodes"
+                          label="区县"
+                          extra="仅可选当前开城城市下的区县；不可与其他区域合伙人重合"
+                        >
+                          <CityDistrictMultiSelect cityCode={editCityCode} />
                         </Form.Item>
                       )}
                       <Space style={{ width: '100%' }} size="large">
@@ -505,29 +532,34 @@ export default function CityPartnersPage() {
         width={560}
         onCancel={() => setCreateOpen(false)}
         onOk={async () => {
-          const v = await createForm.validateFields();
-          const err = commissionSumError(
-            Number(v.orderCommissionRate ?? 0),
-            Number(v.redeemCommissionRate ?? 3),
-            createMaxRate,
-          );
-          if (err) {
-            message.error(err);
-            return;
+          try {
+            const v = await createForm.validateFields();
+            const err = commissionSumError(
+              Number(v.orderCommissionRate ?? 0),
+              Number(v.redeemCommissionRate ?? 3),
+              createMaxRate,
+            );
+            if (err) {
+              message.error(err);
+              return;
+            }
+            await request('/admin/partners', {
+              method: 'POST',
+              body: JSON.stringify({
+                ...v,
+                orderCommissionRate: Number(v.orderCommissionRate ?? 0) / 100,
+                redeemCommissionRate: Number(v.redeemCommissionRate ?? 3) / 100,
+                districtCodes:
+                  createScopeType === CityPartnerScopeType.DISTRICT ? flattenDistrictCodes(v.districtCodes) : undefined,
+              }),
+            });
+            message.success('已创建');
+            setCreateOpen(false);
+            void reload();
+          } catch (e) {
+            const msg = formatApiError(e);
+            if (msg) message.error(msg);
           }
-          await request('/admin/partners', {
-            method: 'POST',
-            body: JSON.stringify({
-              ...v,
-              orderCommissionRate: Number(v.orderCommissionRate ?? 0) / 100,
-              redeemCommissionRate: Number(v.redeemCommissionRate ?? 3) / 100,
-              districtCodes:
-                createScopeType === CityPartnerScopeType.DISTRICT ? flattenDistrictCodes(v.districtCodes) : undefined,
-            }),
-          });
-          message.success('已创建');
-          setCreateOpen(false);
-          void reload();
         }}
       >
         <Form form={createForm} layout="vertical">
@@ -555,8 +587,13 @@ export default function CityPartnersPage() {
             <Select options={SCOPE_OPTIONS} onChange={(v) => setCreateScopeType(v)} />
           </Form.Item>
           {createScopeType === CityPartnerScopeType.DISTRICT && (
-            <Form.Item name="districtCodes" label="区县" rules={[{ required: true }]}>
-              <Cascader options={CHINA_REGION_OPTIONS} multiple changeOnSelect />
+            <Form.Item
+              name="districtCodes"
+              label="区县"
+              rules={[{ required: true, message: '请选择至少一个区县' }]}
+              extra="仅可选当前开城城市下的区县；不可与其他区域合伙人重合"
+            >
+              <CityDistrictMultiSelect cityCode={createCityCode} />
             </Form.Item>
           )}
           <Space style={{ width: '100%' }} size="large">