Add download functionality for equipment attachments

- Introduced a new endpoint `GET /equipment/{id}/attachment/download` in the API for downloading equipment attachment files.
- Implemented the `downloadEquipmentAttachmentFile` function in the client to handle file downloads via the API, ensuring proper token management and blob handling.
- Updated the EquipmentAttachmentInput, EquipmentList, and EquipmentShow components to utilize the new download link, enhancing user experience by allowing direct downloads without exposing the MinIO URL.
- Added a new EquipmentAttachmentLink component to encapsulate the download link logic and improve code reusability.

client/src/resources/equipment/EquipmentAttachmentInput.tsx

@@ -3,6 +3,7 @@ import { useNotify, useRecordContext, useRefresh } from 'react-admin';
 import { useCallback, useState, type ChangeEvent } from 'react';
 import { ensureFreshToken, getAccessToken } from '../../auth/keycloak';
 import { resolveApiBaseUrl } from '../../lib/apiBase';
+import { EquipmentAttachmentLink } from './EquipmentAttachmentLink';
 
 export type FileAttachmentValue = {
   objectKey?: string;
@@ -83,11 +84,12 @@ export function EquipmentAttachmentInput() {
       <Typography component="label" variant="body2">
         Вложение (файл в MinIO)
       </Typography>
-      {att?.downloadUrl ? (
-        <Typography variant="body2">
-          <a href={att.downloadUrl} target="_blank" rel="noreferrer">
-            {att.originalFileName || 'Скачать файл'}
-          </a>
+      {att?.objectKey ? (
+        <Typography variant="body2" component="div">
+          <EquipmentAttachmentLink
+            equipmentId={String(record.id)}
+            fileName={att.originalFileName || 'Скачать файл'}
+          />
           {att.sizeBytes != null ? ` (${Math.round(att.sizeBytes / 1024)} КБ)` : null}
         </Typography>
       ) : (

client/src/resources/equipment/EquipmentAttachmentLink.tsx

@@ -0,0 +1,31 @@
+import { Link } from '@mui/material';
+import { useNotify } from 'react-admin';
+import { downloadEquipmentAttachmentFile } from './attachmentDownload';
+
+type Props = {
+  equipmentId: string;
+  /** Текст ссылки и имя при сохранении в браузере */
+  fileName: string;
+};
+
+export function EquipmentAttachmentLink({ equipmentId, fileName }: Props) {
+  const notify = useNotify();
+  const label = fileName.trim() || 'Скачать';
+
+  return (
+    <Link
+      component="button"
+      type="button"
+      onClick={(e) => {
+        e.preventDefault();
+        e.stopPropagation();
+        void downloadEquipmentAttachmentFile(equipmentId, label).catch(() =>
+          notify('Не удалось скачать файл', { type: 'warning' }),
+        );
+      }}
+      sx={{ cursor: 'pointer', textAlign: 'left', verticalAlign: 'inherit' }}
+    >
+      {label}
+    </Link>
+  );
+}

client/src/resources/equipment/EquipmentList.tsx

@@ -11,6 +11,7 @@ import {
   TextInput,
   TopToolbar,
 } from 'react-admin';
+import { EquipmentAttachmentLink } from './EquipmentAttachmentLink';
 import { equipmentStatusChoices } from './shared';
 
 const equipmentFilters = [
@@ -37,7 +38,19 @@ export function EquipmentList() {
         <SelectField source="status" choices={equipmentStatusChoices} />
         <FunctionField
           label="Файл"
-          render={(record: { attachment?: { objectKey?: string } | null }) => (record?.attachment?.objectKey ? '✓' : '—')}
+          render={(record: {
+            id: string;
+            attachment?: { objectKey?: string; originalFileName?: string | null } | null;
+          }) =>
+            record?.attachment?.objectKey ? (
+              <EquipmentAttachmentLink
+                equipmentId={record.id}
+                fileName={record.attachment.originalFileName ?? 'файл'}
+              />
+            ) : (
+              '—'
+            )
+          }
         />
       </Datagrid>
     </List>

client/src/resources/equipment/EquipmentShow.tsx

@@ -1,4 +1,5 @@
 import { DateField, FunctionField, SelectField, Show, SimpleShowLayout, TextField } from 'react-admin';
+import { EquipmentAttachmentLink } from './EquipmentAttachmentLink';
 import { equipmentStatusChoices } from './shared';
 
 export function EquipmentShow() {
@@ -13,11 +14,15 @@ export function EquipmentShow() {
         <SelectField source="status" choices={equipmentStatusChoices} />
         <FunctionField
           label="Вложение"
-          render={(record: { attachment?: { downloadUrl?: string | null; originalFileName?: string | null } | null }) =>
-            record?.attachment?.downloadUrl ? (
-              <a href={record.attachment.downloadUrl} target="_blank" rel="noreferrer">
-                {record.attachment.originalFileName || 'Скачать'}
-              </a>
+          render={(record: {
+            id: string;
+            attachment?: { objectKey?: string | null; originalFileName?: string | null } | null;
+          }) =>
+            record?.attachment?.objectKey ? (
+              <EquipmentAttachmentLink
+                equipmentId={record.id}
+                fileName={record.attachment.originalFileName ?? 'файл'}
+              />
             ) : (
               '—'
             )

client/src/resources/equipment/attachmentDownload.ts

@@ -0,0 +1,26 @@
+import { ensureFreshToken, getAccessToken } from '../../auth/keycloak';
+import { resolveApiBaseUrl } from '../../lib/apiBase';
+
+/** Скачивание через API (JWT + Content-Disposition), без открытия URL MinIO в браузере. */
+export async function downloadEquipmentAttachmentFile(equipmentId: string, suggestedFileName: string): Promise<void> {
+  await ensureFreshToken();
+  const token = getAccessToken();
+  const url = `${resolveApiBaseUrl()}/equipment/${equipmentId}/attachment/download`;
+  const response = await fetch(url, {
+    method: 'GET',
+    headers: token ? { Authorization: `Bearer ${token}`, Accept: '*/*' } : { Accept: '*/*' },
+  });
+  if (!response.ok) {
+    throw new Error(`Download failed: ${response.status}`);
+  }
+  const blob = await response.blob();
+  const objectUrl = URL.createObjectURL(blob);
+  const a = document.createElement('a');
+  a.href = objectUrl;
+  a.download = suggestedFileName || 'download';
+  a.rel = 'noopener';
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+  URL.revokeObjectURL(objectUrl);
+}