Reapply "feat(loyalty): EnakPoint & EnakCoin" (#32)

This reverts commit 4e24f9bbb0.

internal/processor/analytics_processor.go

@@ -63,27 +63,37 @@ func (p *AnalyticsProcessorImpl) GetPaymentMethodAnalytics(ctx context.Context,
 		return nil, fmt.Errorf("failed to get payment method analytics: %w", err)
 	}
 
-	var totalAmount float64
+	// EnakPoint is not money in (docs/prd-point-coin.md F9, K7): it is listed as its own
+	// method but left out of the money received and of the shares. How it is booked
+	// waits on note N2.
+	var cashAmount, pointAmount float64
+	var pointsUsed int64
 	var totalOrders int64
 	var totalPayments int64
 
 	for _, data := range analyticsData {
-		totalAmount += data.TotalAmount
+		if data.PaymentMethodType == string(constants.PaymentMethodTypePoint) {
+			pointAmount += data.TotalAmount
+			pointsUsed += data.PointsUsed
+		} else {
+			cashAmount += data.TotalAmount
+		}
 		totalOrders += data.OrderCount
 		totalPayments += data.PaymentCount
 	}
 
+	// The value of an order includes what EnakPoint paid, so the average does too.
 	var averageOrderValue float64
 	if totalOrders > 0 {
-		averageOrderValue = totalAmount / float64(totalOrders)
+		averageOrderValue = (cashAmount + pointAmount) / float64(totalOrders)
 	}
 
-	// Calculate percentages
 	var resultData []models.PaymentMethodAnalyticsData
 	for _, data := range analyticsData {
+		cashIn := data.PaymentMethodType != string(constants.PaymentMethodTypePoint)
 		var percentage float64
-		if totalAmount > 0 {
-			percentage = (data.TotalAmount / totalAmount) * 100
+		if cashIn && cashAmount > 0 {
+			percentage = (data.TotalAmount / cashAmount) * 100
 		}
 
 		resultData = append(resultData, models.PaymentMethodAnalyticsData{
@@ -94,11 +104,16 @@ func (p *AnalyticsProcessorImpl) GetPaymentMethodAnalytics(ctx context.Context,
 			OrderCount:        data.OrderCount,
 			PaymentCount:      data.PaymentCount,
 			Percentage:        percentage,
+			PointsUsed:        data.PointsUsed,
+			CountsAsCashIn:    cashIn,
 		})
 	}
 
 	summary := models.PaymentMethodSummary{
-		TotalAmount:       totalAmount,
+		TotalAmount:       cashAmount,
+		PointAmount:       pointAmount,
+		PointsUsed:        pointsUsed,
+		TotalWithPoints:   cashAmount + pointAmount,
 		TotalOrders:       totalOrders,
 		TotalPayments:     totalPayments,
 		AverageOrderValue: averageOrderValue,