Settings_stories

US Application Settings Management : Define settings for the application.

• US Application Settings Management : Define settings for the application.
  • classes relations
  • User Stories: Settings Management
    • 1. User Story: Configure Application Settings
    • 2. User Story: Define Job Settings
    • 3. User Story: Validate Settings Structure
    • 4. User Story: Separate Settings from Provider
    • Common Acceptance Criteria
    • Definition of Done (DoD):
  • Code location

---

classes relations

classDiagram
    direction LR

    class Settings {
        <<abstract>>
    }
    Settings --|> pdts.BaseSettings : inherits

    class MainSettings {
        +job: jobs.JobKind
    }
    MainSettings --|> Settings : inherits

    class jobs.JobKind {
        <<external>>
    }

    class pdt.Field {
        <<external>>
        +Field(..., discriminator="KIND")
    }

    class pdts.BaseSettings {
        <<external>>
    }

    MainSettings --> jobs.JobKind : "uses"
    MainSettings --> pdt.Field : "uses"

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User Stories: Settings Management

---

1. User Story: Configure Application Settings

Title:
As an application administrator, I want to configure application settings, so that I can adjust how the application behaves according to different execution contexts.

Description:
The Settings class encapsulates high-level preferences for the application, allowing configurable parameters that influence job execution.

Acceptance Criteria:

• The settings class can be instantiated with various configurations needed for the application.
• Default values are handled correctly, and the settings can be overridden.

---

2. User Story: Define Job Settings

Title:
As a data scientist, I want to specify the job to run within the main settings, so that I can ensure the correct job is executed based on the application's context.

Description:
The MainSettings class holds the configuration for the job to be executed, ensuring that it is readily accessible when the application runs.

Acceptance Criteria:

• The job is specified within the MainSettings and reflects the expected type.
• The job configuration can be validated against the expected structure before execution.

---

3. User Story: Validate Settings Structure

Title:
As a developer, I want to validate the application settings structure, so that I can ensure all required parameters are present and correct before the application runs.

Description:
The settings classes use Pydantic to automatically validate the structure of the settings against predefined schemas.

Acceptance Criteria:

• Validation occurs at instantiation, ensuring required parameters are not missing.
• Clear error messages are raised for any discrepancies in the settings structure.

---

4. User Story: Separate Settings from Provider

Title:
As a developer, I want to keep settings separate from their providers (e.g., command-line interface), so that I can maintain a clean and organized codebase.

Description:
By defining settings as a distinct class, the application can cleanly interface with different configuration sources (e.g., CLI, files) while keeping the settings validation and application separate.

Acceptance Criteria:

• The settings are decoupled from the underlying logic of the application so that changes in one do not directly impact the other.
• The architecture allows for easy swapping of settings providers without extensive code changes.

---

Common Acceptance Criteria

1. Implementation Requirements:

   • The Settings and MainSettings classes must properly inherit from Pydantic's base settings.
   • Required parameters in the settings must be defined with appropriate types.

2. Error Handling:

   • Informative error messages should be provided if settings validation fails.
   • The application should handle missing or invalid settings gracefully, preventing runtime errors.

3. Testing:

   • Unit tests validate settings initialization, validation, and any provided default values.
   • Tests should ensure various scenarios where settings are provided through different sources are handled correctly.

4. Documentation:

   • Each class and method should include detailed docstrings explaining their purpose and usage.
   • Users should have access to examples that demonstrate the integration of settings into the application.

---

Definition of Done (DoD):

• The Settings and MainSettings classes are fully implemented with all respective functionalities.
• All user stories are verified through testing and meet acceptance criteria.
• Comprehensive documentation accompanies the code.

Code location

src/regression_model_template/settings.py