Aggregate RFM period buyers by prior tag

backend/test/analyticsService.test.js

@@ -5,6 +5,7 @@ const {
     buildRfmClients,
     buildRfmSegments,
     buildDateFilter,
+    getPreviousDate,
     getRfmAnalytics,
     getRfmSegment,
     normalizeDateParam,
@@ -82,6 +83,12 @@ test('buildDateFilter ignores invalid bounds', () => {
     );
 });
 
+test('getPreviousDate returns the calendar day before an ISO date', () => {
+    assert.equal(getPreviousDate('2026-06-15'), '2026-06-14');
+    assert.equal(getPreviousDate('2026-03-01'), '2026-02-28');
+    assert.equal(getPreviousDate('invalid'), null);
+});
+
 test('scoreTertile scores higher values higher by default', () => {
     const values = [10, 20, 30, 40, 50];
 
@@ -184,7 +191,7 @@ test('buildRfmClients scores segments from RFM history when period totals are sm
     assert.equal(yesterdayBuyer.monetaryScore, 3);
 });
 
-test('getRfmAnalytics calculates recency against selected range end date', async () => {
+test('getRfmAnalytics groups period buyers by their RFM tag before the selected period', async () => {
     const originalQuery = pool.query;
     const calls = [];
 
@@ -203,7 +210,7 @@ test('getRfmAnalytics calculates recency against selected range end date', async
                         frequency: 20,
                         quantity_purchased: 20,
                         last_purchase_date: '2026-06-14',
-                        recency_days: endDate === '2026-06-14' ? 0 : 1
+                        recency_days: endDate === '2026-06-13' ? 0 : 1
                     },
                     {
                         name: 'Cliente Antigo',
@@ -236,6 +243,14 @@ test('getRfmAnalytics calculates recency against selected range end date', async
                     frequency: 1,
                     quantity_purchased: 1,
                     last_purchase_date: '2026-06-14'
+                },
+                {
+                    name: 'Cliente Novo no Periodo',
+                    phone: '4',
+                    monetary: 25,
+                    frequency: 1,
+                    quantity_purchased: 1,
+                    last_purchase_date: '2026-06-14'
                 }
             ]
         };
@@ -248,17 +263,16 @@ test('getRfmAnalytics calculates recency against selected range end date', async
         assert.deepEqual(calls[0].params, ['2026-06-09', '2026-06-15']);
         assert.match(calls[1].sql, /\(\$1::date - MAX\(data_pedido_date\)\)::int/);
         assert.match(calls[1].sql, /data_pedido_date <= \$1::date/);
-        assert.deepEqual(calls[1].params, ['2026-06-15']);
+        assert.deepEqual(calls[1].params, ['2026-06-08']);
         assert.deepEqual(calls[2].params, ['2026-06-14', '2026-06-14']);
-        assert.deepEqual(calls[3].params, ['2026-06-14']);
+        assert.deepEqual(calls[3].params, ['2026-06-13']);
         assert.equal(sevenDays.clients[0].segmentKey, 'champions');
         assert.equal(yesterday.clients[0].segmentKey, 'champions');
-        assert.equal(yesterday.clients[0].recencyDays, 0);
         assert.equal(yesterday.clients[0].frequency, 1);
         assert.equal(yesterday.clients[0].monetary, 100);
-        assert.equal(yesterday.clients.length, 3);
-        assert.ok(yesterday.clients.some(client => client.recencyScore === 1));
-        assert.ok(yesterday.clients.some(client => client.phone === '2' && client.monetary === 0 && client.frequency === 0));
+        assert.equal(yesterday.clients.length, 2);
+        assert.ok(!yesterday.clients.some(client => client.phone === '2'));
+        assert.ok(yesterday.clients.some(client => client.phone === '4' && client.segmentKey === 'new_customers'));
     } finally {
         pool.query = originalQuery;
     }