Add visual workflow builder, fix critical bugs, and add Arabic i18n support

src/js/workflow/nodes/pdf-to-svg-node.ts

@@ -0,0 +1,53 @@
+import { ClassicPreset } from 'rete';
+import { BaseWorkflowNode } from './base-node';
+import { pdfSocket } from '../sockets';
+import type { SocketData } from '../types';
+import { requirePdfInput, extractAllPdfs } from '../types';
+import { downloadFile } from '../../utils/helpers.js';
+import { loadPyMuPDF } from '../../utils/pymupdf-loader.js';
+
+export class PdfToSvgNode extends BaseWorkflowNode {
+  readonly category = 'Output' as const;
+  readonly icon = 'ph-file-code';
+  readonly description = 'Convert PDF pages to SVG';
+
+  constructor() {
+    super('PDF to SVG');
+    this.addInput('pdf', new ClassicPreset.Input(pdfSocket, 'PDF'));
+  }
+
+  async data(
+    inputs: Record<string, SocketData[]>
+  ): Promise<Record<string, SocketData>> {
+    const pdfInputs = requirePdfInput(inputs, 'PDF to SVG');
+    const allPdfs = extractAllPdfs(pdfInputs);
+    const pymupdf = await loadPyMuPDF();
+
+    const JSZip = (await import('jszip')).default;
+    const zip = new JSZip();
+
+    for (const pdf of allPdfs) {
+      const blob = new Blob([new Uint8Array(pdf.bytes)], {
+        type: 'application/pdf',
+      });
+      const doc = await pymupdf.open(blob);
+      try {
+        const pageCount = doc.pageCount;
+        const prefix =
+          allPdfs.length > 1 ? pdf.filename.replace(/\.pdf$/i, '') + '/' : '';
+        for (let i = 0; i < pageCount; i++) {
+          const page = doc.getPage(i);
+          const svg = page.toSvg();
+          zip.file(`${prefix}page_${i + 1}.svg`, svg);
+        }
+      } finally {
+        doc.close();
+      }
+    }
+
+    const zipBlob = await zip.generateAsync({ type: 'blob' });
+    downloadFile(zipBlob, 'svg_pages.zip');
+
+    return {};
+  }
+}