47 lines
4.2 KiB
Markdown
47 lines
4.2 KiB
Markdown
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---
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source_files:
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- Common/DTS.CommonCore/Interface/CustomerDetails/ICustomerDetailsView.cs
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- Common/DTS.CommonCore/Interface/CustomerDetails/ICustomerDetailsViewModel.cs
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generated_at: "2026-04-16T02:25:10.730477+00:00"
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model: "Qwen/Qwen3-Coder-Next-FP8"
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schema_version: 1
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sha256: "b07af412c78e07b1"
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---
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# CustomerDetails
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## 1. Purpose
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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.
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## 2. Public Interface
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- **`ICustomerDetailsView`**
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```csharp
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public interface ICustomerDetailsView : IBaseView
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```
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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.
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- **`ICustomerDetailsViewModel`**
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```csharp
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public interface ICustomerDetailsViewModel : IBaseViewModel
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```
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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.
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## 3. Invariants
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- Both interfaces are *marker interfaces*—they carry no explicit members and serve only to categorize types within the type hierarchy.
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- `ICustomerDetailsView` must be implemented by types that serve as the *view* for customer details functionality.
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- `ICustomerDetailsViewModel` must be implemented by types that serve as the *view model* for customer details functionality.
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- 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.
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## 4. Dependencies
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- **Internal dependencies**:
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- `DTS.Common.Base` namespace (specifically `IBaseView` and `IBaseViewModel`), implying a shared base layer for UI abstractions.
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- **Consumers (inferred)**:
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- Any UI module or platform-specific project (e.g., WPF, MAUI, or Blazor) implementing or consuming customer details UI components.
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- Dependency injection containers or navigation frameworks that rely on these interfaces to resolve or bind view/view model pairs.
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- **No external dependencies** (e.g., no third-party libraries, database, or service references) are declared in this source.
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## 5. Gotchas
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- **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.
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- **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.
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- **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.
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- **None identified from source alone** regarding behavioral quirks, deprecations, or anti-patterns—only structural observations.
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