DP44/enriched-qwen3-coder-next/Common/DTS.CommonCore/Interface/CustomerDetails.md

source_files, generated_at, model, schema_version, sha256

source_files	generated_at	model	schema_version	sha256
Common/DTS.CommonCore/Interface/CustomerDetails/ICustomerDetailsView.cs Common/DTS.CommonCore/Interface/CustomerDetails/ICustomerDetailsViewModel.cs	2026-04-16T02:25:10.730477+00:00	Qwen/Qwen3-Coder-Next-FP8	1	b07af412c78e07b1

CustomerDetails

1. Purpose

This module defines the foundational interfaces for the customer details view layer within the DTS Common Core library. Specifically, it establishes ICustomerDetailsView and ICustomerDetailsViewModel as contract interfaces that enable separation of concerns between UI presentation (view) and business logic/data binding (view model) in a MVVM (Model-View-ViewModel) architecture. These interfaces extend base abstractions (IBaseView and IBaseViewModel) to provide type-safe, extensible hooks for customer-specific UI components without prescribing implementation details—allowing platform-specific or feature-specific consumers to implement or consume them consistently.

2. Public Interface

• ICustomerDetailsView

  public interface ICustomerDetailsView : IBaseView
  

  Represents the view layer for customer details UI. It inherits from IBaseView, implying it adheres to a common base contract for all views (e.g., lifecycle events, navigation participation, or platform-specific view behaviors), though the exact members of IBaseView are not visible in this source. No additional members are declared here.

• ICustomerDetailsViewModel

  public interface ICustomerDetailsViewModel : IBaseViewModel
  

  Represents the view model layer for customer details. It inherits from IBaseViewModel, implying it conforms to a shared base contract for view models (e.g., property change notification, command handling, or state management), though the concrete members of IBaseViewModel are not visible here. No additional members are declared here.

3. Invariants

• Both interfaces are marker interfaces—they carry no explicit members and serve only to categorize types within the type hierarchy.
• ICustomerDetailsView must be implemented by types that serve as the view for customer details functionality.
• ICustomerDetailsViewModel must be implemented by types that serve as the view model for customer details functionality.
• Neither interface defines runtime guarantees beyond those inherited from IBaseView/IBaseViewModel. Any invariants (e.g., thread-safety, initialization order, data validity) are assumed to be defined in the base interfaces or by consumers of these interfaces.

4. Dependencies

• Internal dependencies:
  • DTS.Common.Base namespace (specifically IBaseView and IBaseViewModel), implying a shared base layer for UI abstractions.
• Consumers (inferred):
  • Any UI module or platform-specific project (e.g., WPF, MAUI, or Blazor) implementing or consuming customer details UI components.
  • Dependency injection containers or navigation frameworks that rely on these interfaces to resolve or bind view/view model pairs.
• No external dependencies (e.g., no third-party libraries, database, or service references) are declared in this source.

5. Gotchas

• Ambiguity in base contracts: Since IBaseView and IBaseViewModel are not defined in this source, their exact contract (methods, events, properties) is unknown. This may lead to confusion if consumers assume behaviors not present in the base interfaces.
• No explicit data contract: Neither interface exposes properties (e.g., Customer, IsLoading) or commands (e.g., SaveCommand), so consumers must rely on implementation details or additional interfaces to define customer-specific data. This could indicate incomplete design or intentional minimalism for extensibility.
• Namespace co-location: Both interfaces reside in DTS.Common.Interface, but the lack of a dedicated CustomerDetails sub-namespace for implementations (e.g., DTS.Common.Interface.CustomerDetails) may cause naming collisions or unclear ownership if more view/view model pairs are added later.
• None identified from source alone regarding behavioral quirks, deprecations, or anti-patterns—only structural observations.