RSSuper/tasks/native-business-logic-migration/04-implement-android-data-models.md

04. Implement Android data models (Kotlin)

meta: id: native-business-logic-migration-04 feature: native-business-logic-migration priority: P0 depends_on: [native-business-logic-migration-02] tags: [implementation, android, data-models]

objective:

• Implement all data models in Kotlin following Android conventions

deliverables:

• FeedItem.kt
• Feed.kt
• FeedSubscription.kt
• SearchResult.kt
• SearchFilters.kt
• NotificationPreferences.kt
• ReadingPreferences.kt
• Supporting data classes and sealed classes

tests:

• Unit: Test serialization/deserialization with Moshi/Gson
• Unit: Test copy() functionality
• Unit: Test toString() output

acceptance_criteria:

• All models are data classes
• All models have proper equals/hashCode
• JSON serialization working with Moshi
• Room Entity annotations ready for database models
• Sealed classes for enum types

validation:

• Run ./gradlew test
• Verify no lint warnings

notes:

• Use data classes for immutable value objects
• Use sealed classes for enum-like types
• Consider using Parcelize for UI passing