fix report doc initial count logic

utils/__tests__/buildInMemoryReport.test.ts

@@ -98,11 +98,82 @@ describe('buildInMemoryReport', () => {
 
     expect(payload.upToDay).toBe(1);
     expect(payload.counting).toHaveLength(2);
+    const day0 = payload.counting.find((row) => row.day === 0);
+    expect(day0?.countBefore).toBe(20000);
+    expect(day0?.countAfter).toBe(20000);
     const day1 = payload.counting.find((row) => row.day === 1);
+    expect(day1?.countBefore).toBe(20000);
     expect(day1?.iotCount).toBe(19800);
     expect(day1?.mortality).toBe(12);
     const feed1 = payload.feedUse.find((row) => row.day === 1);
     expect(feed1?.iotUse).toBe(8);
     expect(payload.fcr.find((row) => row.day === 1)?.iotFcr).toBe(1.2);
   });
+
+  it('uses doc_in_count for day-0 stok awal instead of reverse-calculating from stok akhir', () => {
+    const countings: ChickenCounting[] = [
+      {
+        id: 1,
+        cycle: 1,
+        kandang: 9,
+        flock_id: 1,
+        date: '2026-05-01',
+        total_count: 36900,
+        mortality_count: 42,
+        created_at: '',
+        updated_at: '',
+      },
+    ];
+    const kpis: KPI[] = [
+      {
+        id: 1,
+        cycle: 1,
+        kandang: 9,
+        flock_id: 1,
+        date: '2026-05-01',
+        age: 0,
+        mortality: 42,
+        mortality_total: 42,
+        feed: 0,
+        feed_total: 0,
+        harvest: 0,
+        harvest_total: 0,
+        harvest_weight: 0,
+        harvest_weight_total: 0,
+        chicken_life: 45000,
+        chicken_life_percentage: 100,
+        iot_weight: 0,
+        average_harvest_day: 0,
+        average_harvest_weight: 0,
+        fcr: 0,
+        eef: 0,
+        cc: 1,
+        cw: 1,
+        fs: 1,
+        manual: 1,
+        created_at: '',
+        updated_at: '',
+      },
+    ];
+
+    const payload = buildInMemoryReport({
+      cycle: { ...cycle, doc_in_count: 45000, current_day: 0, start_date: '2026-05-01' },
+      kandangId: 9,
+      kandangName: 'Kandang 1',
+      area: 'Sukawarna',
+      reportType: 'daily',
+      countings,
+      manuals: [],
+      weights: [],
+      karungs: [],
+      kpis,
+    });
+
+    const day0 = payload.counting.find((row) => row.day === 0);
+    expect(day0?.countBefore).toBe(45000);
+    expect(day0?.mortality).toBe(42);
+    expect(day0?.countAfter).toBe(45000);
+    expect(day0?.iotCount).toBe(36900);
+    expect(day0?.accuracy).toBe(82);
+  });
 });