feat(douyu): 支持批量导出用户名

web/frontend/src/api/douyuCollab.ts

@@ -130,6 +130,28 @@ export interface DouyuCollabCkExportResult {
   items: DouyuCollabCkExportItem[];
 }
 
+export interface DouyuCollabUsernameExportItem {
+  id: number;
+  order_no: string;
+  account_username: string;
+}
+
+export interface DouyuCollabUsernameExportSkipped {
+  id: number;
+  order_no: string;
+  reason: string;
+}
+
+export interface DouyuCollabUsernameExportResult {
+  total: number;
+  exported: number;
+  unique: number;
+  skipped: DouyuCollabUsernameExportSkipped[];
+  items: DouyuCollabUsernameExportItem[];
+  usernames: string[];
+}
+
+
 
 export interface DouyuCollabSummary {
   total: number;
@@ -301,6 +323,11 @@ export const douyuCollabApi = {
     api.post<DouyuCollabCkExportResult, DouyuCollabCkExportResult>(
       `/douyu/external-orders/${id}/ck/copy`,
     ),
+  exportUsernames: (ids: number[]) =>
+    api.post<DouyuCollabUsernameExportResult, DouyuCollabUsernameExportResult>(
+      '/douyu/external-orders/usernames/export',
+      { ids },
+    ),
   getOrder: (id: number) =>
     api.get<DouyuCollabOrder, DouyuCollabOrder>(`/douyu/external-orders/${id}`),
   updateOrder: (id: number, data: DouyuCollabOrderUpdate) =>

web/frontend/src/pages/DouyuCollabPage.tsx

@@ -43,6 +43,7 @@ import {
   SyncOutlined,
   TagOutlined,
   UndoOutlined,
+  UserOutlined,
 } from '@ant-design/icons';
 import HuyaCollabHomeImageUploader from '../components/HuyaCollabHomeImageUploader';
 import DouyuCollabShopModal from '../components/DouyuCollabShopModal';
@@ -58,6 +59,7 @@ import type {
   DouyuCollabStatus,
   DouyuCollabSummary,
   DouyuCollabTimeline,
+  DouyuCollabUsernameExportResult,
 } from '../api/douyuCollab';
 import { usePermissions } from '../hooks/usePermissions';
 import { useCollabRealtime, type CollabRealtimeEvent } from '../hooks/useCollabRealtime';
@@ -258,6 +260,12 @@ export default function DouyuCollabPage() {
   const [ckExport, setCkExport] = useState<DouyuCollabCkExportResult | null>(null);
   const [ckExportFormat, setCkExportFormat] = useState<'plain' | 'with_order'>('plain');
 
+  // 批量导出斗鱼用户名：只读列表数据，不含 CK
+  const [usernameExportOpen, setUsernameExportOpen] = useState(false);
+  const [usernameExporting, setUsernameExporting] = useState(false);
+  const [usernameExport, setUsernameExport] =
+    useState<DouyuCollabUsernameExportResult | null>(null);
+
   const loadOrders = useCallback(async (options?: { silent?: boolean }) => {
     const silent = options?.silent === true;
     if (!silent) setLoading(true);
@@ -337,7 +345,8 @@ export default function DouyuCollabPage() {
       shopModalOpen ||
       batchStatusOpen ||
       statusTarget ||
-      ckExportOpen,
+      ckExportOpen ||
+      usernameExportOpen,
   );
   // 暂停后连 WebSocket 也不建：既不自动重拉，也不做断线兜底轮询。
   const realtimeSyncEnabled = canView && !realtimePaused;
@@ -440,6 +449,11 @@ export default function DouyuCollabPage() {
     [ckExport],
   );
 
+  const usernameExportText = useMemo(
+    () => (usernameExport?.usernames ?? []).join('\n'),
+    [usernameExport],
+  );
+
 
   const refreshAll = () => {
     void loadOrders();
@@ -796,6 +810,38 @@ export default function DouyuCollabPage() {
     }
   };
 
+  const openUsernameExport = async () => {
+    if (selectedIds.length === 0) {
+      message.warning('请先勾选协作单');
+      return;
+    }
+    setUsernameExporting(true);
+    try {
+      const result = await douyuCollabApi.exportUsernames(selectedIds);
+      setUsernameExport(result);
+      setUsernameExportOpen(true);
+    } catch (error) {
+      message.error(getErrorMessage(error));
+    } finally {
+      setUsernameExporting(false);
+    }
+  };
+
+  const closeUsernameExport = () => {
+    setUsernameExportOpen(false);
+    setUsernameExport(null);
+  };
+
+  const copyUsernameExport = async () => {
+    if (!usernameExport?.unique) return;
+    try {
+      await copyTextToClipboard(usernameExportText);
+      message.success(`已复制 ${usernameExport.unique} 个斗鱼用户名到剪贴板`);
+    } catch (error) {
+      message.error(`复制失败：${getErrorMessage(error)}（可以在下面的框里手动选中复制）`);
+    }
+  };
+
   const archiveOrders = async (order: DouyuCollabOrder) => {
     try {
       const result = await douyuCollabApi.archive([order.id], '');
@@ -1421,6 +1467,18 @@ export default function DouyuCollabPage() {
             </Button>
             {realtimePending && <Tag color="processing">有更新待同步</Tag>}
             <Text type="secondary">已选 {selectedCount} 单</Text>
+            {canView && (
+              <Tooltip title="导出勾选订单关联的斗鱼用户名，一行一个并自动去重">
+                <Button
+                  icon={<UserOutlined />}
+                  disabled={selectedCount === 0 || loading || usernameExporting}
+                  loading={usernameExporting}
+                  onClick={() => void openUsernameExport()}
+                >
+                  批量导出用户名{selectedCount > 0 ? `（${selectedCount}）` : ''}
+                </Button>
+              </Tooltip>
+            )}
             {canExportCk && archiveScope !== 'archived' && (
               <Tooltip title="勾选几行就复制几份关联账号的 CK；明文只在弹窗里出现">
                 <Button
@@ -1740,6 +1798,61 @@ export default function DouyuCollabPage() {
         </Space>
       </Modal>
 
+      <Modal
+        title={`导出斗鱼用户名（勾选 ${usernameExport?.total ?? 0} 条，共 ${usernameExport?.unique ?? 0} 个）`}
+        open={usernameExportOpen}
+        onCancel={closeUsernameExport}
+        width={680}
+        footer={[
+          <Button key="close" onClick={closeUsernameExport}>
+            关闭
+          </Button>,
+          <Button
+            key="copy"
+            type="primary"
+            icon={<CopyOutlined />}
+            disabled={!usernameExport?.unique}
+            onClick={() => void copyUsernameExport()}
+          >
+            复制到剪贴板
+          </Button>,
+        ]}
+        destroyOnHidden
+      >
+        <Space direction="vertical" size={8} style={{ width: '100%' }}>
+          <Alert
+            type="info"
+            showIcon
+            message="只导出斗鱼用户名，不包含 CK"
+            description="每行一个用户名，同名账号会自动去重；关闭弹窗后内容即清空。"
+          />
+          {usernameExport && usernameExport.skipped.length > 0 && (
+            <Text type="warning" style={{ fontSize: 12 }}>
+              跳过 {usernameExport.skipped.length} 条：
+              {usernameExport.skipped
+                .map((item) =>
+                  item.order_no ? `${item.order_no}（${item.reason}）` : item.reason,
+                )
+                .join('；')}
+            </Text>
+          )}
+          <Input.TextArea
+            rows={10}
+            value={usernameExportText}
+            readOnly
+            placeholder="没有可导出的斗鱼用户名"
+            style={{
+              fontFamily: 'ui-monospace, SFMono-Regular, Menlo, monospace',
+              fontSize: 12,
+            }}
+          />
+          <Text type="secondary" style={{ fontSize: 12 }}>
+            共 {usernameExport?.unique ?? 0} 个用户名 · {usernameExportText.length} 字符；
+            按勾选订单导出，重复用户名只保留一次。
+          </Text>
+        </Space>
+      </Modal>
+
       <Modal
         title={`导出 CK（勾选 ${ckExport?.total ?? 0} 条，可导出 ${ckExport?.exported ?? 0} 条）`}
         open={ckExportOpen}