feat(admin): Rapporten screen with filters, totals, breakdowns + CSV export

apps/admin/src/lib/date-range.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from 'vitest';
+import { dayStartISO, dayEndISO, thisWeek, thisMonth } from './date-range';
+
+describe('date-range helpers', () => {
+  it('dayStartISO/dayEndISO bound a local day', () => {
+    const start = new Date(dayStartISO('2026-06-17'));
+    const end = new Date(dayEndISO('2026-06-17'));
+    expect(start.getHours()).toBe(0);
+    expect(start.getMinutes()).toBe(0);
+    expect(end.getHours()).toBe(23);
+    expect(end.getMinutes()).toBe(59);
+    expect(end.getTime()).toBeGreaterThan(start.getTime());
+  });
+
+  it('thisWeek returns Monday..today (from/to are YYYY-MM-DD)', () => {
+    const ref = new Date('2026-06-17T12:00:00'); // a Wednesday
+    const { from, to } = thisWeek(ref);
+    expect(from).toBe('2026-06-15'); // Monday
+    expect(to).toBe('2026-06-17');
+  });
+
+  it('thisMonth returns the 1st..today', () => {
+    const ref = new Date('2026-06-17T12:00:00');
+    const { from, to } = thisMonth(ref);
+    expect(from).toBe('2026-06-01');
+    expect(to).toBe('2026-06-17');
+  });
+});

apps/admin/src/lib/date-range.ts

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+// Helpers for the report filter bar. Dates are 'YYYY-MM-DD' (what <input type="date"> uses);
+// the *ISO instants* sent to the API are derived in the admin's local timezone so a picked
+// day means that whole local day.
+
+function pad(n: number): string {
+  return String(n).padStart(2, '0');
+}
+
+export function toDateStr(d: Date): string {
+  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`;
+}
+
+// Start of the given local day, as an ISO instant.
+export function dayStartISO(dateStr: string): string {
+  const [y, m, d] = dateStr.split('-').map(Number);
+  return new Date(y, m - 1, d, 0, 0, 0, 0).toISOString();
+}
+
+// End of the given local day, as an ISO instant.
+export function dayEndISO(dateStr: string): string {
+  const [y, m, d] = dateStr.split('-').map(Number);
+  return new Date(y, m - 1, d, 23, 59, 59, 999).toISOString();
+}
+
+export function thisWeek(ref: Date): { from: string; to: string } {
+  const day = ref.getDay(); // 0=Sun..6=Sat
+  const diffToMonday = (day + 6) % 7;
+  const monday = new Date(ref.getFullYear(), ref.getMonth(), ref.getDate() - diffToMonday);
+  return { from: toDateStr(monday), to: toDateStr(ref) };
+}
+
+export function thisMonth(ref: Date): { from: string; to: string } {
+  const first = new Date(ref.getFullYear(), ref.getMonth(), 1);
+  return { from: toDateStr(first), to: toDateStr(ref) };
+}
+
+// 'Alles' — a wide window from epoch-ish to today.
+export function allTime(ref: Date): { from: string; to: string } {
+  return { from: '2000-01-01', to: toDateStr(ref) };
+}