From 3537bd1f3a8f0e3ada90175a41b69814e11e431b Mon Sep 17 00:00:00 2001
From: smanylov <bio29s@mail.ru>
Date: Fri, 2 Jan 2026 12:52:01 +0700
Subject: [PATCH] add file download

---
 src/app/actions/fileEntity.ts       |  3 +-
 src/app/api/download/[id]/route.ts  | 51 +++++++++++++++++++++++++++++
 src/app/components/tanstakTable.tsx | 30 +++++++++++++++--
 3 files changed, 81 insertions(+), 3 deletions(-)
 create mode 100644 src/app/api/download/[id]/route.ts

diff --git a/src/app/actions/fileEntity.ts b/src/app/actions/fileEntity.ts
index 92ea466..cbe9b3c 100644
--- a/src/app/actions/fileEntity.ts
+++ b/src/app/actions/fileEntity.ts
@@ -1,5 +1,6 @@
 'use server'
 
+import { NextRequest, NextResponse } from 'next/server';
 import { getSessionData } from '@/app/actions/session';
 import { API_BASE_URL } from '@/app/actions/definitions';
 
@@ -42,7 +43,7 @@ export async function getUserFilesData() {
 	}
 }
 
-export async function removeUserFile(fileId : string) {
+export async function removeUserFile(fileId: string) {
 	const token = await getSessionData('token');
 
 	try {
diff --git a/src/app/api/download/[id]/route.ts b/src/app/api/download/[id]/route.ts
new file mode 100644
index 0000000..f302580
--- /dev/null
+++ b/src/app/api/download/[id]/route.ts
@@ -0,0 +1,51 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getSessionData } from '@/app/actions/session';
+import { API_BASE_URL } from '@/app/actions/definitions';
+
+export async function GET(
+	request: NextRequest,
+	{ params }: { params: Promise<{ id: string }> }
+) {
+	try {
+		const token = await getSessionData('token');
+
+		if (!token) {
+			return NextResponse.json(
+				{ error: 'need authorization' },
+				{ status: 401 }
+			);
+		}
+
+		const { id } = await params;
+
+		const response = await fetch(`${API_BASE_URL}/api/v1/files/download/${id}`, {
+			method: 'GET',
+			headers: {
+				"Authorization": token
+			}
+		});
+
+		if (!response.ok) {
+			throw new Error(`backend error: ${response.status}`);
+		}
+
+		const fileBlob = await response.blob();
+		const headers = new Headers(response.headers);
+
+		return new NextResponse(fileBlob, {
+			status: 200,
+			headers: {
+				'Content-Type': headers.get('content-type') || 'application/octet-stream',
+				'Content-Disposition': headers.get('content-disposition') || `attachment; filename="file-${id}"`,
+				'Content-Length': headers.get('content-length') || String(fileBlob.size),
+			},
+		});
+
+	} catch (error) {
+		console.error('download error:', error);
+		return NextResponse.json(
+			{ error: 'download file error' },
+			{ status: 500 }
+		);
+	}
+}
\ No newline at end of file
diff --git a/src/app/components/tanstakTable.tsx b/src/app/components/tanstakTable.tsx
index a31301e..9c2c5c1 100644
--- a/src/app/components/tanstakTable.tsx
+++ b/src/app/components/tanstakTable.tsx
@@ -128,6 +128,8 @@ export default function TanstakFilesTable({ fileType }: { fileType: string }) {
 	const [openWindow, setOpenWindow] = useState<boolean>(false);
 	const [openWindowChildren, setOpenWindowChildren] = useState<ReactNode>(null);
 
+	const [isFileLoading, setIsFileLoading] = useState(false);
+
 	const t = useTranslations("Global");
 
 	// Определение колонок
@@ -343,6 +345,7 @@ export default function TanstakFilesTable({ fileType }: { fileType: string }) {
 						</button>
 						<button
 							onClick={() => handleDownload(row.original)}
+							disabled={isFileLoading}
 							className="px-3 py-1 bg-green-500 text-white rounded hover:bg-green-600 text-sm"
 						>
 							<IconFileOpen />
@@ -373,8 +376,31 @@ export default function TanstakFilesTable({ fileType }: { fileType: string }) {
 		console.log(`Просмотр файла: ${file.fileName}`);
 	};
 
-	const handleDownload = (file: FileItem) => {
-		console.log(`Скачать: ${file.fileName}`);
+	const handleDownload = async (file: FileItem) => {
+		setIsFileLoading(true);
+		console.log(`download: ${file.id}`);
+		try {
+			const response = await fetch(`/api/download/${file.id}`);
+
+			if (!response.ok) {
+				throw new Error(`error: ${response.status}`);
+			}
+
+			const blob = await response.blob();
+			const url = window.URL.createObjectURL(blob);
+			const a = document.createElement('a');
+			a.href = url;
+			a.download = file.fileName || `file-${file.id}`;
+			document.body.appendChild(a);
+			a.click();
+			window.URL.revokeObjectURL(url);
+			document.body.removeChild(a);
+
+		} catch (error) {
+			toast.error('Не удалось скачать файл')
+		} finally {
+			setIsFileLoading(false);
+		}
 	};
 
 	const handleProtect = (file: FileItem) => {