Stabilize RFM segment scoring across date filters

backend/test/analyticsService.test.js

@@ -134,6 +134,52 @@ test('buildRfmClients keeps a yesterday buyer in the same high-recency segment w
     assert.equal(sevenDayClients[0].phone, yesterdayClients[0].phone);
 });
 
+test('buildRfmClients scores segments from RFM history when period totals are smaller', () => {
+    const clients = buildRfmClients([
+        {
+            name: 'Champion que comprou ontem',
+            phone: '1',
+            monetary: 100,
+            frequency: 1,
+            quantityPurchased: 1,
+            lastPurchaseDate: '2026-06-14',
+            recencyDays: 0,
+            rfmFrequency: 20,
+            rfmMonetary: 10000
+        },
+        {
+            name: 'Compra alta no periodo',
+            phone: '2',
+            monetary: 1000,
+            frequency: 5,
+            quantityPurchased: 5,
+            lastPurchaseDate: '2026-06-10',
+            recencyDays: 4,
+            rfmFrequency: 1,
+            rfmMonetary: 100
+        },
+        {
+            name: 'Compra media no periodo',
+            phone: '3',
+            monetary: 900,
+            frequency: 4,
+            quantityPurchased: 4,
+            lastPurchaseDate: '2026-06-05',
+            recencyDays: 9,
+            rfmFrequency: 1,
+            rfmMonetary: 50
+        }
+    ]);
+
+    const yesterdayBuyer = clients.find(client => client.phone === '1');
+
+    assert.equal(yesterdayBuyer.segmentKey, 'champions');
+    assert.equal(yesterdayBuyer.frequency, 1);
+    assert.equal(yesterdayBuyer.monetary, 100);
+    assert.equal(yesterdayBuyer.frequencyScore, 3);
+    assert.equal(yesterdayBuyer.monetaryScore, 3);
+});
+
 test('getRfmAnalytics calculates recency against selected range end date', async () => {
     const originalQuery = pool.query;
     const calls = [];
@@ -160,6 +206,7 @@ test('getRfmAnalytics calculates recency against selected range end date', async
         const yesterday = await getRfmAnalytics({ start: '2026-06-14', end: '2026-06-14' });
 
         assert.match(calls[0].sql, /\(\$3::date - MAX\(data_pedido_date\)\)::int/);
+        assert.match(calls[0].sql, /data_pedido_date <= \$3::date/);
         assert.deepEqual(calls[0].params, ['2026-06-09', '2026-06-15', '2026-06-15']);
         assert.deepEqual(calls[1].params, ['2026-06-14', '2026-06-14', '2026-06-14']);
         assert.equal(sevenDays.clients[0].segmentKey, 'champions');