update window range

apps/edr-freight-api/src/modules/train-scheduling/batch-window.util.spec.ts

@@ -3,6 +3,9 @@ import {
   listBatchWindowsForDate,
   listBatchWindowsForBookings,
   BATCH_WINDOW_START_HOURS,
+  boardWindowForTimestamp,
+  listBoardWindowsForRange,
+  groupBookingsIntoBoardWindows,
 } from './batch-window.util';
 
 describe('batch-window.util', () => {
@@ -50,3 +53,84 @@ describe('batch-window.util', () => {
     expect(getBatchWindowForTimestamp(fullyExecutedAt).key).toBe(overnight!.key);
   });
 });
+
+describe('batch-window board windows (midnight-based 3h slots)', () => {
+  it('maps 04:00 EAT to the 03:00–06:00 slot', () => {
+    // 01:00 UTC = 04:00 EAT on 11 Jun
+    const w = boardWindowForTimestamp(new Date('2026-06-11T01:00:00.000Z'));
+    expect(w.label).toContain('03:00');
+    expect(w.label).toContain('06:00');
+    expect(w.date).toBe('2026-06-11');
+    expect(w.dateLabel).toContain('11 Jun');
+  });
+
+  it('maps 00:30 EAT to the 00:00–03:00 slot of that EAT day', () => {
+    // 21:30 UTC on 10 Jun = 00:30 EAT on 11 Jun
+    const w = boardWindowForTimestamp(new Date('2026-06-10T21:30:00.000Z'));
+    expect(w.label).toContain('00:00');
+    expect(w.label).toContain('03:00');
+    expect(w.date).toBe('2026-06-11');
+  });
+
+  it('maps 23:00 EAT to the final 21:00–24:00 slot', () => {
+    // 20:00 UTC = 23:00 EAT on 11 Jun
+    const w = boardWindowForTimestamp(new Date('2026-06-11T20:00:00.000Z'));
+    expect(w.label).toContain('21:00');
+    expect(w.label).toContain('24:00');
+    expect(w.date).toBe('2026-06-11');
+  });
+
+  it('lists a continuous range open→departure clamped at both ends', () => {
+    // open 05 Jun 08:00 EAT (05:00 UTC) → departs 08 Jun 14:00 EAT (11:00 UTC)
+    const open = new Date('2026-06-05T05:00:00.000Z');
+    const departure = new Date('2026-06-08T11:00:00.000Z');
+    const windows = listBoardWindowsForRange(open, departure);
+
+    // Day 5: 06,09,12,15,18,21 = 6 ; Days 6,7: 8 each ; Day 8: 00,03,06,09,12 = 5
+    expect(windows).toHaveLength(6 + 8 + 8 + 5);
+    expect(windows[0].date).toBe('2026-06-05');
+    expect(windows[0].label).toContain('06:00');
+    expect(windows[0].label).toContain('09:00');
+    const last = windows[windows.length - 1];
+    expect(last.date).toBe('2026-06-08');
+    expect(last.label).toContain('12:00');
+    expect(last.label).toContain('15:00');
+    // chronological + unique keys
+    const keys = windows.map((w) => w.key);
+    expect(new Set(keys).size).toBe(keys.length);
+  });
+
+  it('handles a same-day open→departure range', () => {
+    const open = new Date('2026-06-05T05:00:00.000Z'); // 08:00 EAT (06–09 slot)
+    const departure = new Date('2026-06-05T11:00:00.000Z'); // 14:00 EAT (12–15 slot)
+    const windows = listBoardWindowsForRange(open, departure);
+    // 06,09,12 = 3 slots
+    expect(windows).toHaveLength(3);
+    expect(windows.every((w) => w.date === '2026-06-05')).toBe(true);
+  });
+
+  it('buckets bookings by fullyExecutedAt and keeps empty + pending windows', () => {
+    const open = new Date('2026-06-05T05:00:00.000Z');
+    const departure = new Date('2026-06-06T11:00:00.000Z');
+    const items = [
+      { id: 'a', ts: new Date('2026-06-05T05:30:00.000Z') }, // 08:30 EAT → 06–09 on 5th
+      { id: 'b', ts: null }, // pending
+    ];
+    const map = groupBookingsIntoBoardWindows(
+      items,
+      (i) => i.ts,
+      open,
+      departure,
+      'pending-contract',
+    );
+    const pending = map.get('pending-contract');
+    expect(pending?.items.map((i) => i.id)).toEqual(['b']);
+    const withA = [...map.values()].find((b) => b.items.some((i) => i.id === 'a'));
+    expect(withA?.window?.date).toBe('2026-06-05');
+    // empty slots are retained for the UI
+    const emptyCount = [...map.values()].filter(
+      (b) => b.window && b.items.length === 0,
+    ).length;
+    expect(emptyCount).toBeGreaterThan(0);
+  });
+});