Fas 2 steg 3: Household Trust Score (admin + i18n status i appen)

packages/inventory-engine/test/trust.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { applyDecay, computeTrust, worstTrustState } from "../src/trust.js";
+import { applyDecay, computeTrust, householdTrustScore, worstTrustState } from "../src/trust.js";
 
 const PINNED = new Date("2026-08-06T12:00:00.000Z");
 
@@ -96,6 +96,62 @@ describe("computeTrust", () => {
   });
 });
 
+describe("householdTrustScore", () => {
+  it("returns 100 / up_to_date for empty inventory", () => {
+    const result = householdTrustScore({ items: [], correctionCount30d: 0, transactionCount30d: 0 }, PINNED);
+    expect(result.score).toBe(100);
+    expect(result.status).toBe("up_to_date");
+  });
+
+  it("scores high when all items are verified and recent", () => {
+    const result = householdTrustScore(
+      {
+        items: [
+          { confidence: 1, verifiedByUser: true, lastVerifiedAt: PINNED, quantity: 2, updatedAt: PINNED },
+          { confidence: 1, verifiedByUser: true, lastVerifiedAt: PINNED, quantity: 3, updatedAt: PINNED },
+        ],
+        correctionCount30d: 0,
+        transactionCount30d: 0,
+      },
+      PINNED,
+    );
+    expect(result.score).toBeGreaterThanOrEqual(80);
+    expect(result.status).toBe("up_to_date");
+  });
+
+  it("drops to uncertain when items are old and unverified", () => {
+    const old = new Date(PINNED.getTime() - 60 * 86_400_000);
+    const result = householdTrustScore(
+      {
+        items: [
+          { confidence: 0.3, verifiedByUser: false, lastVerifiedAt: null, quantity: 0.1, updatedAt: old },
+        ],
+        correctionCount30d: 5,
+        transactionCount30d: 10,
+      },
+      PINNED,
+    );
+    expect(result.status).toBe("uncertain");
+    expect(result.score).toBeLessThan(50);
+  });
+
+  it("flags needs_check for partly verified household", () => {
+    const weekAgo = new Date(PINNED.getTime() - 7 * 86_400_000);
+    const result = householdTrustScore(
+      {
+        items: [
+          { confidence: 0.8, verifiedByUser: true, lastVerifiedAt: weekAgo, quantity: 1, updatedAt: weekAgo },
+          { confidence: 0.5, verifiedByUser: false, lastVerifiedAt: null, quantity: 1, updatedAt: weekAgo },
+        ],
+        correctionCount30d: 1,
+        transactionCount30d: 5,
+      },
+      PINNED,
+    );
+    expect(result.status).toBe("needs_check");
+  });
+});
+
 describe("worstTrustState", () => {
   it("returns stale if present", () => {
     expect(worstTrustState(["trusted", "stale", "decaying"])).toBe("stale");