Question

You maintain a 900-line `OrderManager` class that handles pricing calculations, database persistence, email notifications, and PDF invoice generation all in one place. You want GitHub Copilot to help you break it apart into smaller, focused classes. Which approach will yield the most reliable and reviewable refactoring result?

Accepted Answer

Use Copilot Chat to first ask it to identify the distinct responsibilities in the class, then extract one responsibility at a time (e.g., notification logic into a `NotificationService`) with targeted requests, reviewing and testing after each step.

Answer

Select the entire class and ask Copilot in one prompt to 'split this into microservices and rewrite it,' then accept the generated files without staged review.

Answer

Delete the class entirely and ask Copilot to regenerate an equivalent implementation from scratch based on a brief description of the domain.

Answer

Rename the class to `OrderService` and rely on inline completions to gradually suggest better structure as you keep typing.