From ceee9adead94c437785ede7053e4563a7cbf5054 Mon Sep 17 00:00:00 2001
From: Ku6epXBOCTuK <Ku6epXBOCTuK@gmail.com>
Date: Sat, 12 Sep 2026 14:46:01 +0500
Subject: [PATCH] feat: add download zip with result files

---
 web/src/lib/zip.ts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 web/src/lib/zip.ts

diff --git a/web/src/lib/zip.ts b/web/src/lib/zip.ts
new file mode 100644
index 0000000..4b5b8f6
--- /dev/null
+++ b/web/src/lib/zip.ts
@@ -0,0 +1,21 @@
+import { zipSync } from "fflate";
+import { downloadBlob, encode } from "./core/io";
+import type { ToolImageFile } from "./registry";
+
+/**
+ * Собирает набор картинок (1 → many) в zip-архив и скачивает его.
+ * Картинки кодируются как PNG; кодирование требует DOM — вызов из UI-слоя.
+ */
+export async function downloadZip(
+	files: ToolImageFile[],
+	zipName: string,
+): Promise<void> {
+	if (files.length === 0) return;
+	const entries: Record<string, Uint8Array> = {};
+	for (const file of files) {
+		const blob = await encode(file.image, "image/png");
+		entries[file.name] = new Uint8Array(await blob.arrayBuffer());
+	}
+	const zipped = zipSync(entries);
+	downloadBlob(new Blob([zipped], { type: "application/zip" }), zipName);
+}