package schemas type AddToCartRequest struct { ProductID uint `json:"product_id" binding:"required"` Quantity int `json:"quantity" binding:"required,min=1"` } type UpdateCartRequest struct { Quantity int `json:"quantity" binding:"required,min=1"` } type CreateOrderRequest struct { ShippingAddressID uint `json:"shipping_address_id" binding:"required"` PaymentMethod string `json:"payment_method"` CartItemIDs []uint `json:"cart_item_ids"` } type RefundRequest struct { Reason string `json:"reason" binding:"required"` } type ShipOrderRequest struct { TrackingNumber string `json:"tracking_number" binding:"required"` ShippingPhoto string `json:"shipping_photo"` ExpressPhoto string `json:"express_photo"` CustomsPhoto string `json:"customs_photo"` } type ProcessRefundRequest struct { Status string `json:"status" binding:"required,oneof=approved rejected"` }