🐛(sw) keep incremental versioning for IndexedDB

IndexDB need a integer versioning when upgrading
the database, it has to be incremental.
Before the fix, version 4.0.0 would give 400, when
3.10.0 would give 3100. That would cause an error
and the database would be destroyed then recreated.
We improve the way we compute the version number
to ensure it is always incremental, avoiding such
issues.

src/frontend/apps/impress/src/features/service-worker/DocsDB.ts

@@ -33,12 +33,21 @@ interface IDocsDB extends DBSchema {
 type TableName = 'doc-list' | 'doc-item' | 'doc-mutation';
 
 /**
- * IndexDB version must be a integer
+ * IndexDB prefers incremental versioning when upgrading the database,
- * @returns
+ * otherwise it may throw an error, and we need to destroy the database
+ * and recreate it.
+ * To calculate the version number, we use the following formula,
+ * assuring incremental versioning:
+ *   version = major * 1000000 + minor * 1000 + patch
+ * ex:
+ *  - version 1.2.3 => 1002003
+ *  - version 0.10.15 => 10015
+ *  - version 2.0.0 => 2000000
+ * @returns number
  */
-const getCurrentVersion = () => {
+export const getCurrentVersion = () => {
-  const [major, minor, patch] = pkg.version.split('.');
+  const [major, minor, patch] = pkg.version.split('.').map(Number);
-  return parseFloat(`${major}${minor}${patch}`);
+  return major * 1000000 + minor * 1000 + patch;
 };
 
 /**

src/frontend/apps/impress/src/features/service-worker/__tests__/DocsDB.test.tsx

@@ -0,0 +1,36 @@
+import { afterEach, describe, expect, it, vi } from 'vitest';
+
+vi.mock('@/../package.json', () => ({
+  default: { version: '0.0.0' },
+}));
+
+describe('DocsDB', () => {
+  afterEach(() => {
+    vi.clearAllMocks();
+    vi.resetModules();
+  });
+
+  let previousExpected = 0;
+
+  [
+    { version: '0.0.1', expected: 1 },
+    { version: '0.10.15', expected: 10015 },
+    { version: '1.0.0', expected: 1000000 },
+    { version: '2.105.3', expected: 2105003 },
+    { version: '3.0.0', expected: 3000000 },
+    { version: '10.20.30', expected: 10020030 },
+  ].forEach(({ version, expected }) => {
+    it(`correctly computes version for ${version}`, () => {
+      vi.doMock('@/../package.json', () => ({
+        default: { version },
+      }));
+
+      return vi.importActual('../DocsDB').then((module: any) => {
+        const result = module.getCurrentVersion();
+        expect(result).toBe(expected);
+        expect(result).toBeGreaterThan(previousExpected);
+        previousExpected = result;
+      });
+    });
+  });
+});