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

source_files, generated_at, model, schema_version, sha256

source_files	generated_at	model	schema_version	sha256
Common/DTS.CommonCore/Interface/SystemSettings/ISOSettings/IisoSettingsView.cs Common/DTS.CommonCore/Interface/SystemSettings/ISOSettings/IISOSettingsModel.cs Common/DTS.CommonCore/Interface/SystemSettings/ISOSettings/IISOSettingsViewModel.cs Common/DTS.CommonCore/Interface/SystemSettings/ISOSettings/IISOSettingsData.cs	2026-04-16T02:31:37.120937+00:00	Qwen/Qwen3-Coder-Next-FP8	1	7b8cfe6060429ed5

ISOSettings

Documentation Page: ISO Settings Module

1. Purpose

This module defines the core interfaces for managing ISO (International Organization for Standardization) code settings within the system’s settings infrastructure. It implements a standard Model-View-ViewModel (MVVM) pattern to decouple configuration data (IISOSettingsData), business logic/data persistence (IISOSettingsModel), and UI presentation (IISOSettingsView and IISOSettingsViewModel). Its role is to provide a structured, testable abstraction layer for storing, loading, and exposing user-configurable ISO-related display and validation preferences—such as whether ISO codes must be unique, which view modes are active, and which helper UI elements (e.g., code builder, channel lookup) are visible.

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2. Public Interface

IISOSettingsView

• Signature: interface IISOSettingsView : IBaseView
• Behavior: Represents the view layer contract for ISO settings UI. Inherits from IBaseView, implying standard view lifecycle/interaction capabilities (e.g., data binding, initialization hooks). No additional members defined—implementation responsibility lies in concrete view classes.

IISOSettingsModel

• Signature: interface IISOSettingsModel : IBaseModel
• Behavior: Manages persistence of ISO settings.
  • void SaveData(IISOSettingsData data): Persists the provided IISOSettingsData instance.
  • IISOSettingsData LoadData(): Retrieves and returns the current persisted ISO settings data.
    Inherits from IBaseModel, implying standard model responsibilities (e.g., state management, validation hooks).

IISOSettingsViewModel

• Signature: interface IISOSettingsViewModel : IBaseViewModel
• Behavior: Orchestrates interaction between view, model, and data.
  • IISOSettingsView View { get; set; }: Gets or sets the associated view instance.
  • IISOSettingsData ISOData { get; set; }: Gets or sets the current ISO settings data model.
  • IISOSettingsModel Model { get; set; }: Gets or sets the associated data persistence model.
    Inherits from IBaseViewModel, implying standard MVVM behaviors (e.g., command binding, property change notification).

IISOSettingsData

• Signature: interface IISOSettingsData : IBaseClass
• Behavior: Encapsulates configurable ISO settings properties.
  • bool UniqueISOCodesRequired { get; set; }: Controls whether duplicate ISO codes are disallowed.
  • IsoViewMode ISOViewMode { get; set; }: Sets the current display mode for ISO codes (enum value from DTS.Common.Enums).
  • bool ShowISOStringBuilder { get; set; }: Toggles visibility of the ISO code builder UI helper.
  • bool ShowChannelCodeLookupHelper { get; set; }: Toggles visibility of the channel code lookup helper.
  • bool UseISOCodeFilterMapping { get; set; }: Enables/disables filtering logic based on ISO code mappings.
  • bool ShowISOCodes { get; }: Read-only flag indicating whether ISO codes should be displayed.
  • bool ShowUserCodes { get; }: Read-only flag indicating whether user-defined codes should be displayed.
  • bool ChannelNamesOnly { get; }: Read-only flag indicating whether only channel names (not codes) should be shown.
    Inherits from IBaseClass, implying base functionality (e.g., equality, cloning—exact behavior depends on IBaseClass implementation).

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3. Invariants

• Data Integrity: SaveData and LoadData must ensure data consistency—LoadData() should return a valid IISOSettingsData instance (non-null) representing the persisted state.
• Read-Only Properties: ShowISOCodes, ShowUserCodes, and ChannelNamesOnly are read-only; their values must be determined internally (e.g., derived from ISOViewMode or other settings) and not settable directly.
• MVVM Coupling: IISOSettingsViewModel requires all three dependencies (View, Model, ISOData) to be non-null for correct operation (enforced by implementation, not interface).
• Enum Dependency: ISOViewMode is defined in DTS.Common.Enums; its valid values and semantics must be consistent with the behavior of ShowISOCodes, ShowUserCodes, and ChannelNamesOnly.

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4. Dependencies

Dependencies of this module:

• DTS.Common.Base: Provides base contracts (IBaseView, IBaseModel, IBaseViewModel, IBaseClass).
• DTS.Common.Enums: Defines the IsoViewMode enum used in IISOSettingsData.

Dependencies on this module:

• Any module implementing or consuming ISO settings (e.g., UI components, persistence layers, configuration services) must depend on these interfaces.
• Concrete implementations of IISOSettingsView, IISOSettingsModel, IISOSettingsViewModel, and IISOSettingsData are expected elsewhere in the codebase (not specified here).

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5. Gotchas

• Read-Only Properties: ShowISOCodes, ShowUserCodes, and ChannelNamesOnly are read-only but may be computed from ISOViewMode or other settings. Modifying ISOViewMode could indirectly change these values.
• No Validation Logic: The interfaces define what data is stored and how it’s persisted but contain no validation rules (e.g., UniqueISOCodesRequired is a flag, but enforcement logic must reside in implementation).
• Null Safety: The ViewModel interface allows setting View, Model, or ISOData to null; implementations must handle null references gracefully (e.g., via guards or default instances).
• No Explicit Error Handling: SaveData/LoadData signatures do not declare exceptions—implementation may throw (e.g., on I/O failure), but callers must infer error paths.
• Namespace Overlap: All interfaces reside in DTS.Common.Interface, suggesting this is part of a shared core library; changes may impact multiple consumers.

None identified beyond the above.