Feature/dra 166

[rajdeveloper90]

Summary by CodeRabbit

Release Notes

• New Features

  • User profile system with follow/unfollow functionality
  • User details page displaying creator information and social network links
  • Creator profile display in feed items
  • User image caching and preloading

• Database

  • Added user data persistence layer

• UI Updates

  • Updated favorites screen with follow/unfollow button
  • Enhanced feed to show content creator profiles

[coderabbitai]

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Free

Run ID: fe3d5ee3-4cc2-4ddb-8c7c-808f6e1873cb

📥 Commits

Reviewing files that changed from the base of the PR and between d724c58 and 1a58f06.

⛔ Files ignored due to path filters (5)

• app/src/main/res/drawable-hdpi/ic_instagram.png is excluded by !**/*.png
• app/src/main/res/drawable-mdpi/ic_instagram.png is excluded by !**/*.png
• app/src/main/res/drawable-xhdpi/ic_instagram.png is excluded by !**/*.png
• app/src/main/res/drawable-xxhdpi/ic_instagram.png is excluded by !**/*.png
• app/src/main/res/drawable-xxxhdpi/ic_instagram.png is excluded by !**/*.png

📒 Files selected for processing (37)

• app/src/main/java/eu/theappfactory/dailyrecipes/data/UserDataDownloader.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/UserRepository.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/db/AppDatabase.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/db/Converters.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/db/UserDao.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/db/UserEntity.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/userEvent/FirestoreUserDetailParser.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/userEvent/FirestoreUserEventDataSource.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/data/userEvent/UserEventDataSource.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/di/RepositoryModule.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/di/SharedModule.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/domain/home/GetUserDetailsWithUserNameUseCase.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/domain/home/GetUsersUseCase.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/domain/home/UpdateUserFollowersCount.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/domain/preferences/GetUserFoodCategoriesUseCase.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/domain/userdetails/GetUserUseCase.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/media/ImagePreLoader.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/model/FollowItem.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/model/ItemResponse.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/model/UserResponse.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/categories/CategoriesViewModel.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/favorites/FavoritesFragment.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/favorites/FavoritesViewModel.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/home/ItemEventActions.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/home/pager/ItemAdapter.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/home/pager/ItemFragment.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/home/pager/ItemHolder.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/home/pager/ItemViewModel.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/launch/LauncherViewModel.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/ui/register/createuser/CreateUsernameViewModel.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/util/ImageView.kt
• app/src/main/java/eu/theappfactory/dailyrecipes/util/ViewModelFactory.kt
• app/src/main/res/layout/fragment_favorites.xml
• app/src/main/res/layout/list_item_items.xml
• app/src/main/res/navigation/main_navigation.xml
• app/src/main/res/values/colors.xml
• app/src/main/res/values/strings.xml

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📝 Walkthrough

Walkthrough

A feature set is added enabling user profile management: fetching and persisting users to local database, implementing follow/unfollow operations, displaying creator profiles in feeds, and retrieving user details by username. The user authentication flow is updated to support paired string-boolean parameters for determining data retrieval context.

Changes

Cohort / File(s)	Summary
User Data Persistence Layer data/UserDataDownloader, data/db/UserEntity, data/db/UserDao, data/db/Converters, data/db/AppDatabase	New Firestore data downloader class, Room entity and DAO for user storage, JSON type converters for list serialization, and database schema upgrade to version 3 with type converter registration.
Repository & Data Source data/UserRepository, data/userEvent/FirestoreUserEventDataSource, data/userEvent/UserEventDataSource	Extended user repository and Firestore data source with follow/unfollow, username-based user lookup, remote users list retrieval, and food categories by username. Repository now integrates local database caching.
Domain Use Cases domain/home/GetUsersUseCase, domain/home/GetUserDetailsWithUserNameUseCase, domain/home/UpdateUserFollowersCount, domain/userdetails/GetUserUseCase, domain/preferences/GetUserFoodCategoriesUseCase	New use cases for fetching users list, looking up user by username, and updating follow counts. Modified GetUserUseCase to accept Pair<String, Boolean> parameter; updated food categories use case to use new repository method.
Data Models model/UserResponse, model/FollowItem, model/ItemResponse	Extended UserResponse with social network handle and photo URI thumbnail fields. New FollowItem data class for follow/unfollow operations. Minor formatting update to ItemResponse.
Favorites Feature ui/favorites/FavoritesFragment, ui/favorites/FavoritesViewModel, res/layout/fragment_favorites	Fragment and ViewModel now support viewing other users' profiles and follow/unfollow interaction. Layout refactored with new follow button, unfollow button, and social network button.
Feed/Home Feature ui/home/pager/ItemViewModel, ui/home/pager/ItemFragment, ui/home/pager/ItemHolder, ui/home/pager/ItemAdapter, ui/home/ItemEventActions, res/layout/list_item_items	Feed items now display creator profiles and names with image preloading. Replaced social network button click handling with username-based navigation to user profile. Updated adapter to bind creator profile data. Layout restructured with creator avatar and name display.
Categories Feature ui/categories/CategoriesViewModel	Updated to resolve and use username instead of user ID when fetching user food categories.
Authentication Flow ui/launch/LauncherViewModel, ui/register/createuser/CreateUsernameViewModel	Modified to pass Pair<String, Boolean> to GetUserUseCase for context-aware user retrieval.
Utilities & Infrastructure media/ImagePreLoader, util/ImageView, util/ViewModelFactory, di/RepositoryModule, di/SharedModule, res/navigation/main_navigation, res/values/colors, res/values/strings	Added user image preloading support. Extended image loading utility with placeholder parameter. Updated dependency injection and view model factory with new use cases. Added navigation argument for username passing. New color and string resources for follow/unfollow UI.

Sequence Diagram

sequenceDiagram
    participant User as User (UI)
    participant ViewModel as FavoritesViewModel
    participant Repo as UserRepository
    participant DataSource as FirestoreUserEventDataSource
    participant Firestore as Firestore
    participant DB as Room Database

    User->>ViewModel: updateUserFollowers()
    ViewModel->>ViewModel: Create FollowItem(selfUserName, selectedUserName, isFollow)
    ViewModel->>Repo: updateFollowUnFollowCount(FollowItem)
    Repo->>DataSource: updateFollowUnFollowCount(FollowItem)
    DataSource->>Firestore: Query user documents by username
    Firestore-->>DataSource: User document IDs
    DataSource->>DataSource: Update in-memory follower list
    DataSource->>Firestore: Batch write FieldValue.arrayUnion/arrayRemove
    Firestore-->>DataSource: Updated followers list
    DataSource-->>Repo: Result<ArrayList<String>>
    Repo->>DB: Insert updated UserEntity
    DB-->>Repo: Complete
    Repo-->>ViewModel: Result with updated followers
    ViewModel->>ViewModel: Update _onUserLoaded with new followers
    ViewModel-->>User: Emit updated LiveData

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sequenceDiagram
    participant Fragment as ItemFragment
    participant ViewModel as ItemViewModel
    participant UseCase as GetUsersUseCase
    participant Repo as UserRepository
    participant DataSource as FirestoreUserEventDataSource
    participant Downloader as UserDataDownloader
    participant Firestore as Firestore
    participant Preloader as ImagePreLoader

    Fragment->>ViewModel: fetchUsersList()
    ViewModel->>UseCase: execute(Unit)
    UseCase->>Repo: retrieveRemoteUsers()
    Repo->>DataSource: getRemoteUsersList()
    DataSource->>DataSource: Check network connectivity
    alt Network Available
        DataSource->>Downloader: fetch()
        Downloader->>Firestore: get() from users collection
        Firestore-->>Downloader: DocumentSnapshots
        Downloader-->>DataSource: MutableList<UserResponse>
    end
    DataSource-->>Repo: MutableList<UserResponse>
    Repo->>Repo: Map to UserEntity and persist
    Repo-->>UseCase: List<UserResponse>
    UseCase-->>ViewModel: List<UserResponse>
    ViewModel->>ViewModel: Update usersList LiveData
    ViewModel->>Preloader: preloadUserFrames(items)
    Preloader-->>ViewModel: Complete
    Fragment->>Fragment: Update UI with user data

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Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Poem

🐰 A warren of users now hops through our app,
Following friends fills the social-network map,
With profiles and pictures in beautiful arrays,
Room persists their details through all of our days,
From Firestore to database, data does flow—
Hoppy refactoring! Watch the features grow! 🌟

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