Add dashboard report snapshots feature with CRUD operations. Implemented new database migrations for dashboard_report_snapshots, including report type handling. Updated backend routes and models to support snapshot retrieval and upsert functionality. Enhanced frontend components to integrate report snapshot management, including UI for daily and end-cycle reports. Added tests for new functionality to ensure reliability.

utils/__tests__/pdfExport.test.ts

@@ -0,0 +1,90 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { choosePdfSliceHeight, pdfBlockBreakOffsets } from '../pdfExport.ts';
+
+const mocks = vi.hoisted(() => ({
+  addImage: vi.fn(),
+  save: vi.fn(),
+  jsPDF: vi.fn(),
+  html2canvas: vi.fn(),
+}));
+
+vi.mock('jspdf', () => ({
+  jsPDF: mocks.jsPDF,
+}));
+
+vi.mock('html2canvas', () => ({
+  default: mocks.html2canvas,
+}));
+
+describe('exportCardToPdf compression', () => {
+  beforeEach(() => {
+    mocks.addImage.mockReset();
+    mocks.save.mockReset();
+    mocks.jsPDF.mockReset();
+    mocks.html2canvas.mockReset();
+    mocks.jsPDF.mockImplementation(function JsPDF() {
+      return {
+        internal: { pageSize: { getWidth: () => 210, getHeight: () => 297 } },
+        addPage: vi.fn(),
+        addImage: mocks.addImage,
+        save: mocks.save,
+      };
+    });
+    mocks.html2canvas.mockImplementation(async () => {
+      const canvas = document.createElement('canvas');
+      canvas.width = 800;
+      canvas.height = 400;
+      return canvas;
+    });
+  });
+
+  it('embeds JPEG pages in a compressed jsPDF document', async () => {
+    vi.spyOn(HTMLCanvasElement.prototype, 'getContext').mockReturnValue({
+      fillStyle: '',
+      fillRect: vi.fn(),
+      drawImage: vi.fn(),
+    } as unknown as CanvasRenderingContext2D);
+    const toDataURL = vi
+      .spyOn(HTMLCanvasElement.prototype, 'toDataURL')
+      .mockReturnValue('data:image/jpeg;base64,xx');
+
+    const { exportCardToPdf } = await import('../pdfExport.ts');
+    await exportCardToPdf(document.createElement('div'), 'Laporan.pdf');
+
+    expect(mocks.jsPDF).toHaveBeenCalledWith(expect.objectContaining({ compress: true }));
+    expect(toDataURL).toHaveBeenCalledWith('image/jpeg', expect.any(Number));
+    const quality = toDataURL.mock.calls.find((call) => call[0] === 'image/jpeg')?.[1] as number;
+    expect(quality).toBeGreaterThan(0);
+    expect(quality).toBeLessThan(1);
+    expect(mocks.addImage).toHaveBeenCalledWith(
+      expect.any(String),
+      'JPEG',
+      expect.any(Number),
+      expect.any(Number),
+      expect.any(Number),
+      expect.any(Number)
+    );
+    expect(mocks.save).toHaveBeenCalledWith('Laporan.pdf');
+
+    toDataURL.mockRestore();
+    vi.restoreAllMocks();
+  });
+});
+
+describe('pdf page breaks', () => {
+  it('does not defer an oversized table past the header', () => {
+    const usableHeight = 1200;
+    const breaks = pdfBlockBreakOffsets([{ top: 80, bottom: 5000 }], usableHeight);
+    expect(breaks).not.toContain(80);
+    expect(breaks).toContain(5000);
+    expect(choosePdfSliceHeight(0, 5000, usableHeight, breaks)).toBe(usableHeight);
+  });
+
+  it('keeps a small chart whole by breaking before it when it no longer fits', () => {
+    const usableHeight = 400;
+    const breaks = pdfBlockBreakOffsets([{ top: 350, bottom: 500 }], usableHeight);
+    expect(breaks).toEqual(expect.arrayContaining([350, 500]));
+    expect(choosePdfSliceHeight(0, 900, usableHeight, breaks)).toBe(350);
+  });
+});
+