Branches

• Main: All in one, That's consider to be the main branch which holds the base modules, No modularization as everything in the same project.
• Modularization-Caching-Testing: Recommended to use this branch which contains the complete app with modularization, Testing for movie details module and applying the caching logic on movies module.

Demo

DarkMode + Pagination	Search + Details

Genres Filter	LightMode + OfflineState

Requirements:

Functional

• Fetching and parsing data from API.
• Listing Data.
• Navigation to Details view.
• Search
• Fetching Genres
• Filter by Genre
• Dark mode

Non-Functional:

• Scalability:
  • Modularity.
• Performance:
  • Caching.
  • Pagination
  • Handling offline state
• Reliability:
  • Unit tests.

Diagrams

• High-Level Diagram

• Low-Level Diagram - MVVM with clean architecture

Decisions

• IDE & Deployment target:

  • XCode 15.3
  • Minimum Target: iOS(15)

• UI:

  • SwiftUI
  • UIKit - Used in Navigation
  • MVVM with Clean Architecture (UseCase & Coordinator)

• Principals and Patterns:

  • SOLID conformance:
    • Features are separated into modules.
    • Factory pattern to create each module.
    • Repository for formatting backend data.
    • Coordinator to manage navigation & communication among modules.
    • UseCases for business logic.

• Dependency Manager:

  • Swift Package Manager

• Dependencies:

  Kingfisher: Downloading and caching images from the web.

  Realm: for chaching the list.

What could be improved

• Be more secure and include the API keys in keychain or external tool.
• Pass the parameters in the parameters not the URL
• Implement the needed UI formatting in the viewModel not in the View.
• Spliting the logic more in the usecase.
• Unit testing for the MoviesList.
• Caching for MovieDetails.
• CI/CD