adding backup/restore ability

test/backup/backupRestoreService.test.js

@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2025 by Christian Kellner.
+ * Licensed under Apache-2.0 with Commons Clause and Attribution/Naming Clause
+ */
+
+import { expect } from 'chai';
+import esmock from 'esmock';
+
+describe('services/storage/backupRestoreService.js - precheck & filename', () => {
+  let svc;
+  let admZipMock;
+  let calls;
+
+  beforeEach(async () => {
+    calls = { logger: { info: [], warn: [], error: [] } };
+
+    // Mock AdmZip with configurable state
+    let state = { hasDb: false, meta: null };
+    class MockAdmZip {
+      constructor() {}
+      getEntry(name) {
+        if (name === 'listings.db') {
+          if (state.hasDb) return { getData: () => Buffer.from('db') };
+          return null;
+        }
+        if (name === 'fredy-backup.json') {
+          if (state.meta) return { getData: () => Buffer.from(JSON.stringify(state.meta)) };
+          return null;
+        }
+        return null;
+      }
+      getEntries() {
+        const arr = [];
+        if (state.hasDb) arr.push({ entryName: 'listings.db', getData: () => Buffer.from('db') });
+        return arr;
+      }
+    }
+    admZipMock = { default: MockAdmZip, __set: (s) => (state = { ...state, ...s }) };
+
+    const path = await import('node:path');
+    const ROOT = path.resolve('.');
+
+    // Mocks for dependencies
+    const migratePath = path.join(ROOT, 'lib', 'services', 'storage', 'migrations', 'migrate.js');
+    const sqlitePath = path.join(ROOT, 'lib', 'services', 'storage', 'SqliteConnection.js');
+    const loggerPath = path.join(ROOT, 'lib', 'services', 'logger.js');
+    const utilsPath = path.join(ROOT, 'lib', 'utils.js');
+
+    const migrateMock = {
+      listMigrationFiles: () => [{ id: 10 }],
+      runMigrations: async () => {},
+    };
+
+    const sqliteMock = {
+      default: {
+        getConnection: () => ({ backup: async () => {} }),
+        close: () => {},
+        tableExists: () => false,
+        query: () => [],
+        withTransaction: (cb) => cb({ prepare: () => ({ run: () => {} }) }),
+      },
+      computeDbPath: async () => ({ dir: '/tmp', dbPath: '/tmp/listings.db' }),
+    };
+
+    const loggerMock = {
+      info: (...a) => calls.logger.info.push(a),
+      warn: (...a) => calls.logger.warn.push(a),
+      error: (...a) => calls.logger.error.push(a),
+    };
+
+    const utilsMock = { getPackageVersion: async () => '16.2.0' };
+
+    const mod = await esmock(
+      path.join(ROOT, 'lib', 'services', 'storage', 'backupRestoreService.js'),
+      {},
+      {
+        'adm-zip': admZipMock,
+        [migratePath]: migrateMock,
+        [sqlitePath]: sqliteMock,
+        [loggerPath]: loggerMock,
+        [utilsPath]: utilsMock,
+      },
+    );
+
+    svc = mod;
+  });
+
+  it('precheck: empty upload yields danger', async () => {
+    const res = await svc.precheckRestore(Buffer.alloc(0));
+    expect(res.compatible).to.equal(false);
+    expect(res.severity).to.equal('danger');
+    expect(res.message).to.contain('Empty upload');
+    expect(res.requiredMigration).to.equal(10);
+  });
+
+  it('precheck: missing listings.db yields danger', async () => {
+    admZipMock.__set({ hasDb: false, meta: { dbMigration: 9 } });
+    const res = await svc.precheckRestore(Buffer.from('dummy'));
+    expect(res.compatible).to.equal(false);
+    expect(res.severity).to.equal('danger');
+    expect(res.message).to.match(/missing the database file/i);
+  });
+
+  it('precheck: older backup is compatible with warning', async () => {
+    admZipMock.__set({ hasDb: true, meta: { dbMigration: 5, fredyVersion: '16.0.0' } });
+    const res = await svc.precheckRestore(Buffer.from('zip'));
+    expect(res.compatible).to.equal(true);
+    expect(res.severity).to.equal('warning');
+    expect(res.message).to.match(/automatic migrations/i);
+    expect(res.backupMigration).to.equal(5);
+    expect(res.requiredMigration).to.equal(10);
+  });
+
+  it('precheck: equal backup is compatible with info', async () => {
+    admZipMock.__set({ hasDb: true, meta: { dbMigration: 10 } });
+    const res = await svc.precheckRestore(Buffer.from('zip'));
+    expect(res.compatible).to.equal(true);
+    expect(res.severity).to.equal('info');
+  });
+
+  it('precheck: newer backup yields danger', async () => {
+    admZipMock.__set({ hasDb: true, meta: { dbMigration: 11 } });
+    const res = await svc.precheckRestore(Buffer.from('zip'));
+    expect(res.compatible).to.equal(false);
+    expect(res.severity).to.equal('danger');
+  });
+
+  it('buildBackupFileName: matches pattern and includes version', async () => {
+    const name = await svc.buildBackupFileName();
+    expect(name).to.match(/^\d{4}-\d{2}-\d{2}-FredyBackup-/);
+    expect(name).to.include('16.2.0');
+    expect(name).to.match(/\.zip$/);
+  });
+});