Update

internal/contract/analytics_contract.go

@@ -113,6 +113,33 @@ type ProductAnalyticsData struct {
 	OrderCount   int64     `json:"order_count"`
 }
 
+// ProductAnalyticsPerCategoryRequest represents the request for product analytics per category
+type ProductAnalyticsPerCategoryRequest struct {
+	OrganizationID uuid.UUID
+	OutletID       *uuid.UUID `form:"outlet_id,omitempty"`
+	DateFrom       string     `form:"date_from" validate:"required"`
+	DateTo         string     `form:"date_to" validate:"required"`
+}
+
+// ProductAnalyticsPerCategoryResponse represents the response for product analytics per category
+type ProductAnalyticsPerCategoryResponse struct {
+	OrganizationID uuid.UUID                           `json:"organization_id"`
+	OutletID       *uuid.UUID                          `json:"outlet_id,omitempty"`
+	DateFrom       time.Time                           `json:"date_from"`
+	DateTo         time.Time                           `json:"date_to"`
+	Data           []ProductAnalyticsPerCategoryData   `json:"data"`
+}
+
+// ProductAnalyticsPerCategoryData represents individual category analytics data
+type ProductAnalyticsPerCategoryData struct {
+	CategoryID   uuid.UUID `json:"category_id"`
+	CategoryName string    `json:"category_name"`
+	TotalRevenue float64   `json:"total_revenue"`
+	TotalQuantity int64    `json:"total_quantity"`
+	ProductCount int64     `json:"product_count"`
+	OrderCount   int64     `json:"order_count"`
+}
+
 // DashboardAnalyticsRequest represents the request for dashboard analytics
 type DashboardAnalyticsRequest struct {
 	OrganizationID uuid.UUID