CustomerOrderController-protocol.swift

class CustomOrderRequest {
    private (set) var products = [Product]()
}

protocol OrderCommand {
    //
}

protocol OrderManagerProtocol {
    func send(command : OrderCommand)
}

class AddCustomerOrderCommand : OrderCommand {
    private var id : UUID
    private var products = [Product]()
    
    init(id: UUID, products: [Product]) {
        self.id = id
        self.products.append(contentsOf: products)
    }
}

class CustomerOrderController {
    private (set) var orderManager : OrderManagerProtocol
    
    init(manager: OrderManagerProtocol) {
        self.orderManager = manager
    }
    
    func addCustomerOrderCommand(customerId : UUID, request: CustomOrderRequest) {
        orderManager.send(command: AddCustomerOrderCommand(id: customerId, products: request.products))
    }
}