feat: add outlet name at analytic response and new overview dashboard

internal/repository/analytics_repository.go

@@ -21,6 +21,7 @@ type AnalyticsRepository interface {
 	GetProfitLossAnalytics(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time, groupBy string) (*entities.ProfitLossAnalytics, error)
 	GetExclusiveSummaryAnalytics(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time) (*entities.ExclusiveSummaryAnalytics, error)
 	GetExclusiveSummaryBankBalances(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID) ([]entities.ExclusiveSummaryBankBalance, error)
+	GetOutletName(ctx context.Context, organizationID uuid.UUID, outletID uuid.UUID) (string, error)
 }
 
 type AnalyticsRepositoryImpl struct {
@@ -40,6 +41,22 @@ func (r *AnalyticsRepositoryImpl) resolveOutletID(query *gorm.DB, outletID *uuid
 	return query
 }
 
+func (r *AnalyticsRepositoryImpl) GetOutletName(ctx context.Context, organizationID uuid.UUID, outletID uuid.UUID) (string, error) {
+	var outlet struct {
+		Name string
+	}
+	result := r.db.WithContext(ctx).
+		Table("outlets").
+		Select("name").
+		Where("id = ? AND organization_id = ?", outletID, organizationID).
+		Limit(1).
+		Scan(&outlet)
+	if result.Error != nil {
+		return "", result.Error
+	}
+	return outlet.Name, nil
+}
+
 func purchaseOrderItemTotalAmountSQL() string {
 	return "CASE WHEN pc.type = '" + string(entities.PurchaseCategoryTypeRawMaterial) + "' THEN COALESCE(poi.quantity, 0) * poi.amount ELSE poi.amount END"
 }
@@ -471,6 +488,41 @@ func (r *AnalyticsRepositoryImpl) GetDashboardOverview(ctx context.Context, orga
 		return nil, err
 	}
 
+	// Total item sold (sum of order_items quantity for completed orders in date range)
+	var totalItemSold int64
+	itemQuery := r.db.WithContext(ctx).
+		Table("order_items oi").
+		Select("COALESCE(SUM(oi.quantity), 0)").
+		Joins("JOIN orders o ON o.id = oi.order_id").
+		Where("o.organization_id = ?", organizationID).
+		Where("o.is_void = false AND o.is_refund = false AND o.payment_status = 'completed'").
+		Where("o.created_at >= ? AND o.created_at <= ?", dateFrom, dateTo)
+	itemQuery = r.resolveOutletID(itemQuery, outletID, "o.outlet_id")
+	itemQuery.Scan(&totalItemSold)
+	result.TotalItemSold = totalItemSold
+
+	// Total low stock (inventory where quantity <= reorder_level)
+	var totalLowStock int64
+	lowStockQuery := r.db.WithContext(ctx).
+		Table("inventory i").
+		Select("COUNT(i.id)").
+		Joins("JOIN products p ON p.id = i.product_id").
+		Where("p.organization_id = ?", organizationID).
+		Where("i.quantity <= i.reorder_level")
+	lowStockQuery = r.resolveOutletID(lowStockQuery, outletID, "i.outlet_id")
+	lowStockQuery.Scan(&totalLowStock)
+	result.TotalLowStock = totalLowStock
+
+	// Total active products
+	var totalProductActive int64
+	productQuery := r.db.WithContext(ctx).
+		Table("products p").
+		Select("COUNT(p.id)").
+		Where("p.organization_id = ?", organizationID).
+		Where("p.is_active = true")
+	productQuery.Scan(&totalProductActive)
+	result.TotalProductActive = totalProductActive
+
 	return &result, nil
 }