fix(occupancies): assign room resources during transfers

apps/admin/src/pages/Occupancies/index.tsx

@@ -32,6 +32,7 @@ import { downloadBlob } from '../../utils/download';
 import { maskPhone, maskIdNumber } from '../../utils/sensitive';
 import PermissionButton from '../../components/PermissionButton';
 import { message } from '../../ui/app-message';
+import { buildTransferPayload } from './occupancy-form';
 
 const { RangePicker } = DatePicker;
 
@@ -59,6 +60,8 @@ const OccupanciesPage: React.FC = () => {
   const [batchCheckOutForm] = Form.useForm();
   const [availableBeds, setAvailableBeds] = useState<any[]>([]);
   const [availableLockers, setAvailableLockers] = useState<any[]>([]);
+  const [transferAvailableBeds, setTransferAvailableBeds] = useState<any[]>([]);
+  const [transferAvailableLockers, setTransferAvailableLockers] = useState<any[]>([]);
 
   const fetchData = useCallback(async () => {
     setLoading(true);
@@ -110,6 +113,30 @@ const OccupanciesPage: React.FC = () => {
     } catch (e) { console.error(e); }
   };
 
+  const handleTransferRoomChange = async (roomId: number) => {
+    transferForm.setFieldValue('newBedId', undefined);
+    transferForm.setFieldValue('newLockerId', undefined);
+    if (!roomId) {
+      setTransferAvailableBeds([]);
+      setTransferAvailableLockers([]);
+      return;
+    }
+    try {
+      const [beds, lockers] = await Promise.all([
+        api.get<any[]>(`/rooms/${roomId}/beds/available`),
+        api.get<any[]>(`/rooms/${roomId}/lockers/available`),
+      ]);
+      setTransferAvailableBeds(beds);
+      setTransferAvailableLockers(lockers);
+      if (beds.length === 1) transferForm.setFieldValue('newBedId', beds[0].id);
+    } catch (e) {
+      console.error(e);
+      setTransferAvailableBeds([]);
+      setTransferAvailableLockers([]);
+      message.error('目标宿舍床位和柜子加载失败');
+    }
+  };
+
   const filteredData = useMemo(() => {
     if (!searchText) return data;
     const keyword = searchText.toLowerCase();
@@ -170,13 +197,10 @@ const OccupanciesPage: React.FC = () => {
     const values = await transferForm.validateFields();
     setSaving(true);
     try {
-      await api.put(`/occupancies/${transferModal.id}/transfer`, {
-        newRoomId: values.newRoomId,
-        transferDate: values.transferDate.format('YYYY-MM-DD'),
-        oldBillingEndDate: values.oldBillingEndDate?.format('YYYY-MM-DD'),
-        newBillingStartDate: values.newBillingStartDate?.format('YYYY-MM-DD'),
-        reason: values.reason,
-      });
+      await api.put(
+        `/occupancies/${transferModal.id}/transfer`,
+        buildTransferPayload(values),
+      );
       message.success('换房成功');
       setTransferModal(null);
       transferForm.resetFields();
@@ -261,6 +285,9 @@ const OccupanciesPage: React.FC = () => {
               size="small"
               icon={<SwapOutlined />}
               onClick={() => {
+                setTransferAvailableBeds([]);
+                setTransferAvailableLockers([]);
+                transferForm.resetFields();
                 setTransferModal(record);
                 transferForm.setFieldsValue({ transferDate: dayjs() });
               }}
@@ -708,7 +735,12 @@ const OccupanciesPage: React.FC = () => {
         title={`换房 - ${transferModal?.student?.name}`}
         open={!!transferModal}
         onOk={handleTransfer}
-        onCancel={() => setTransferModal(null)}
+        onCancel={() => {
+          setTransferModal(null);
+          transferForm.resetFields();
+          setTransferAvailableBeds([]);
+          setTransferAvailableLockers([]);
+        }}
         okText="确认换房"
         confirmLoading={saving}
         width={500}
@@ -719,6 +751,7 @@ const OccupanciesPage: React.FC = () => {
               showSearch
               optionFilterProp="label"
               placeholder="选择目标宿舍"
+              onChange={handleTransferRoomChange}
               options={rooms
                 .filter((r: any) => r.id !== transferModal?.roomId)
                 .map((r: any) => ({
@@ -728,6 +761,38 @@ const OccupanciesPage: React.FC = () => {
                 }))}
             />
           </Form.Item>
+          <Form.Item
+            name="newBedId"
+            label="目标床位"
+            rules={[{ required: true, message: '请选择目标床位' }]}
+          >
+            <Select
+              placeholder="请先选择目标宿舍"
+              disabled={transferAvailableBeds.length === 0}
+              options={transferAvailableBeds.map((bed) => ({
+                value: bed.id,
+                label: bed.bedNumber,
+              }))}
+              notFoundContent="目标宿舍暂无可用床位"
+            />
+          </Form.Item>
+          {transferAvailableBeds.length > 0 && (
+            <div style={{ marginTop: -16, marginBottom: 16, color: '#888', fontSize: 12 }}>
+              空闲 {transferAvailableBeds.length} 张床位
+            </div>
+          )}
+          <Form.Item name="newLockerId" label="目标柜子（可选）">
+            <Select
+              allowClear
+              placeholder="可选分配目标宿舍柜子"
+              disabled={transferAvailableLockers.length === 0}
+              options={transferAvailableLockers.map((locker) => ({
+                value: locker.id,
+                label: locker.lockerNumber,
+              }))}
+              notFoundContent="目标宿舍暂无可用柜子"
+            />
+          </Form.Item>
           <Form.Item name="transferDate" label="换房日期" rules={[{ required: true }]}>
             <DatePicker style={{ width: '100%' }} placeholder="选择换房日期" format="YYYY-MM-DD" />
           </Form.Item>

apps/admin/src/pages/Occupancies/occupancy-form.integration.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest';
+import dayjs from 'dayjs';
+import { buildTransferPayload } from './occupancy-form';
+
+describe('occupancy transfer form', () => {
+  it('submits the target room resources with the transfer dates', () => {
+    expect(
+      buildTransferPayload({
+        newRoomId: 5,
+        newBedId: 12,
+        newLockerId: 18,
+        transferDate: dayjs('2026-07-13'),
+        oldBillingEndDate: dayjs('2026-07-13'),
+        newBillingStartDate: dayjs('2026-07-14'),
+        reason: '调整宿舍',
+      }),
+    ).toEqual({
+      newRoomId: 5,
+      newBedId: 12,
+      newLockerId: 18,
+      transferDate: '2026-07-13',
+      oldBillingEndDate: '2026-07-13',
+      newBillingStartDate: '2026-07-14',
+      reason: '调整宿舍',
+    });
+  });
+});

apps/admin/src/pages/Occupancies/occupancy-form.ts

@@ -0,0 +1,21 @@
+import type { Dayjs } from 'dayjs';
+
+export interface TransferFormValues {
+  newRoomId: number;
+  newBedId: number;
+  newLockerId?: number;
+  transferDate: Dayjs;
+  oldBillingEndDate?: Dayjs;
+  newBillingStartDate?: Dayjs;
+  reason?: string;
+}
+
+export const buildTransferPayload = (values: TransferFormValues) => ({
+  newRoomId: values.newRoomId,
+  newBedId: values.newBedId,
+  newLockerId: values.newLockerId || undefined,
+  transferDate: values.transferDate.format('YYYY-MM-DD'),
+  oldBillingEndDate: values.oldBillingEndDate?.format('YYYY-MM-DD'),
+  newBillingStartDate: values.newBillingStartDate?.format('YYYY-MM-DD'),
+  reason: values.reason,
+});