Installation

Run pod install to fetch the latests libraries. If it doesn't work try to delete themoviedb.xcworkspace and run pod install again.

Architecture brief

According to the task a simple and clean architectural solution was chosen. Application module consists of Presenter responsible for module business login, View->ViewController responsible only for presentation, ViewModel responsible for data and actions handlins, Router (for some module) to easily navigate to another screen. Each module use dependency services for easily accessing common services of the application and for easily replacing them with mocked services. Communication between Presenter and View->ViewController layers happens by ViewHandler. It's a super light and easy to read structure with closures which are accessible from view layers (instead of typical protocol conformance which needs a lot of code and makes readability and tests implementing a bit harder).

What to improve

1. Add TestStorageService and TestNetworkService which conform to base protocols (StorageService, NetworkService) for implementing tests.
2. Create general lightweight TableViewController which takes ViewModel as parameter and draw table view as childViewController in some container to avoid spreading the same UITableView dependencies.
3. Implement tests for existing presenters (is not finished due to the lack of time, examples available here or on request).
4. Make Router as initialiser of module when more layers come instead of initialiing controller with direct presenter passing.
5. Add errors handlers.

Short example