feat: extract complete multi-cabinet sets

src/onenote/onepkg/package.ts

@@ -7,10 +7,13 @@ import type {
 import type { ParserDiagnostic } from '../model/diagnostics.js';
 import { checkCancellation } from './cancellation.js';
 import { extractCabinet } from './cabinet.js';
+import { extractCabinetSet } from './cabinet-set.js';
 import { diagnosticFromUnknown, OnePkgError, warning } from './errors.js';
 import { buildOneNotePackageTree } from './toc-hierarchy.js';
 import type {
   CabOpenOptions,
+  CabExtractionResult,
+  CabSetPart,
   ExtractedCabFile,
   OnePkgCancellation,
 } from './types.js';
@@ -84,6 +87,34 @@ export async function openOneNotePackage(
 ): Promise<OneNotePackageOpenResult> {
   const sourceName = options.sourceName ?? 'notebook.onepkg';
   const extraction = await extractCabinet(bytes, options);
+  return buildOpenedPackage(extraction, sourceName, bytes.byteLength, options);
+}
+
+export async function openOneNotePackageSet(
+  parts: CabSetPart[],
+  options: OneNotePackageOpenOptions = {}
+): Promise<OneNotePackageOpenResult> {
+  const extraction = await extractCabinetSet(parts, options);
+  const sourceName =
+    options.sourceName ??
+    parts.find((part) => part.fileName.toLowerCase().endsWith('.onepkg'))
+      ?.fileName ??
+    extraction.parts[0]?.fileName ??
+    'notebook.onepkg';
+  return buildOpenedPackage(
+    extraction,
+    sourceName,
+    parts.reduce((sum, part) => sum + part.bytes.byteLength, 0),
+    options
+  );
+}
+
+async function buildOpenedPackage(
+  extraction: CabExtractionResult,
+  sourceName: string,
+  sourceSize: number,
+  options: OneNotePackageOpenOptions
+): Promise<OneNotePackageOpenResult> {
   const diagnostics = [...extraction.diagnostics];
   const packageEntries: OneNotePackageEntryDto[] =
     extraction.extractedEntries.map((entry) => ({
@@ -173,7 +204,7 @@ export async function openOneNotePackage(
     package: {
       format: 'onepkg',
       sourceName,
-      sourceSize: bytes.byteLength,
+      sourceSize,
       entries: packageEntries,
       sections: packagedSections,
       tree: treeResult.tree,