Enhance AI Insight with new state management and PDF export functionality. Added selectedArea state to App for better context in reports. Introduced new markdown files for documentation on AI Insight improvements and setup instructions. Updated package dependencies and fixed TypeScript errors for improved stability.

utils/__tests__/insightScopeAggregate.test.ts

@@ -0,0 +1,57 @@
+import { describe, it, expect } from 'vitest';
+import { scopeScalarsToTimeframe, UNAVAILABLE } from '../insightScope.ts';
+
+/**
+ * Real shape of the FCR page's 7-day history for this cycle: the IoT scale
+ * stopped reporting at day 38 and has written 0 ever since, and the flock was
+ * fully harvested on day 48 so `ayam` ends at 0 too.
+ */
+const ROWS = [
+  { day: 42, fcr: 1.8, pakan: 1064, bobot_kg: 0, ayam: 1424 },
+  { day: 44, fcr: 1.81, pakan: 1067, bobot_kg: 0, ayam: 1314 },
+  { day: 46, fcr: 1.82, pakan: 1072, bobot_kg: 0, ayam: 1253 },
+  { day: 47, fcr: 1.78, pakan: 1073, bobot_kg: 1.38, ayam: 822 },
+  { day: 48, fcr: 1.7, pakan: 1073, bobot_kg: 0, ayam: 0 },
+];
+
+const spec = (agg: 'last' | 'lastValid') => ({
+  historyKey: 'tren',
+  derive: {
+    bobot_kg_out: { field: 'bobot_kg', agg },
+    ayam_out: { field: 'ayam', agg },
+  },
+});
+
+describe('lastValid aggregation', () => {
+  it('last takes the trailing zero — the reported bug', () => {
+    const out = scopeScalarsToTimeframe({ tren: ROWS }, 'mingguan', spec('last'));
+    expect(out.bobot_kg_out).toBe(0);
+    expect(out.ayam_out).toBe(0);
+  });
+
+  it('lastValid walks back past the zeros', () => {
+    const out = scopeScalarsToTimeframe({ tren: ROWS }, 'mingguan', spec('lastValid'));
+    expect(out.bobot_kg_out).toBe(1.38);
+    expect(out.ayam_out).toBe(822);
+  });
+
+  it('reports unavailable when every reading in the window is zero', () => {
+    const allZero = [
+      { day: 47, bobot_kg: 0, ayam: 0 },
+      { day: 48, bobot_kg: 0, ayam: 0 },
+    ];
+    const out = scopeScalarsToTimeframe({ tren: allZero }, 'mingguan', spec('lastValid'));
+    expect(out.bobot_kg_out).toBe(UNAVAILABLE);
+    expect(out.ayam_out).toBe(UNAVAILABLE);
+  });
+
+  it('leaves a genuine non-zero final reading alone', () => {
+    const rows = [
+      { day: 47, bobot_kg: 1.3, ayam: 900 },
+      { day: 48, bobot_kg: 1.45, ayam: 850 },
+    ];
+    const out = scopeScalarsToTimeframe({ tren: rows }, 'mingguan', spec('lastValid'));
+    expect(out.bobot_kg_out).toBe(1.45);
+    expect(out.ayam_out).toBe(850);
+  });
+});