StockList

Architecture

The app uses a Redux-like approach for managing screen state and handling user actions.
The main flow is:
The View sends an Action to the ViewModel → The ViewModel fetches/updates data, generates internal events, and sends them to the Reducer → The Reducer applies changes to the state → The View renders the UI based on the updated state.

The project also follows key Clean Architecture principles, with clear separation between Domain, UseCases, and View layers. This helps prevent higher-level modules from depending on lower-level ones and keeps business logic, data, and presentation separate and maintainable.

Main benefits of this approach

• State is changed only in one place — the reduce function.
• ViewModel.send() is the entry point for business and presentation logic.
• The View is a pure function that receives State and renders the UI.
• Easy to test, mock, and use in previews.
• The codebase is simple to read, maintain, and scale.
• Multiple developers can work on the same feature in parallel without blocking each other.

What I would improve in a production project

1. Localization
   Move all strings to separate localizable files to support multiple languages and make translations easier.

2. Tuist or XcodeGen
   Use Tuist or XcodeGen for centralized project configuration, faster creation of new targets, and better CI integration.

3. CI/CD
   Set up a CI/CD pipeline (for example, GitHub Actions) to automate builds, run tests, and check code quality on every commit.

4. SwiftLint / SwiftFormat
   Introduce linters and auto-formatting to enforce consistent code style and catch potential issues early during pull requests.

5. App Monitoring / Crashlytics
   Integrate monitoring tools like Crashlytics or Sentry to quickly track crashes and bugs in production.