Follow Recommended Practices when Using Data classes along with Compose

app/build.gradle

@@ -5,6 +5,7 @@ plugins {
     // Hilt doesn't supports KSP yet
     id 'kotlin-kapt'
     id 'com.google.dagger.hilt.android'
+    id("com.google.devtools.ksp")
 }
 
 android {
@@ -43,7 +44,7 @@ android {
         buildConfig true
     }
     composeOptions {
-        kotlinCompilerExtensionVersion '1.4.6'
+        kotlinCompilerExtensionVersion '1.5.0'
     }
     packagingOptions {
         resources {
@@ -101,7 +102,7 @@ dependencies {
     implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
 
     // Hilt
-    def hilt_version = "2.44"
+    def hilt_version = "2.47"
     def hilt_navigation_compose = "1.0.0"
     implementation "com.google.dagger:hilt-android:$hilt_version"
     kapt "com.google.dagger:hilt-compiler:$hilt_version"
@@ -121,7 +122,7 @@ dependencies {
 
     // Room
     implementation "androidx.room:room-runtime:2.5.1"
-    kapt "androidx.room:room-compiler:2.5.1"
+    ksp "androidx.room:room-compiler:2.5.1"
     implementation "androidx.room:room-ktx:2.5.1"
 
     // WorkManager

app/src/main/java/com/raghav/spacedawnv2/launchesscreen/LaunchesScreenState.kt

@@ -1,9 +1,13 @@
 package com.raghav.spacedawnv2.launchesscreen
 
+import androidx.compose.runtime.Stable
 import com.raghav.spacedawnv2.domain.model.LaunchDetail
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.persistentListOf
 
+@Stable
 data class LaunchesScreenState(
-    val launches: List<LaunchDetail> = emptyList(),
+    val launches: ImmutableList<LaunchDetail> = persistentListOf(),
     val isLoading: Boolean = false,
     val errorMessage: String? = null
 )

app/src/main/java/com/raghav/spacedawnv2/launchesscreen/LaunchesScreenVM.kt

@@ -10,6 +10,8 @@ import com.raghav.spacedawnv2.domain.util.Constants
 import com.raghav.spacedawnv2.domain.util.Resource
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
+import kotlinx.collections.immutable.persistentListOf
+import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableSharedFlow
@@ -49,15 +51,15 @@ class LaunchesScreenVM @Inject constructor(
                                 it.copy(
                                     isLoading = false,
                                     errorMessage = result.errorMessage,
-                                    launches = result.data ?: emptyList()
+                                    launches = result.data?.toImmutableList() ?: persistentListOf()
                                 )
                             }
                         }
 
                         is Resource.Success -> {
                             _uiState.update {
                                 it.copy(
-                                    launches = result.data ?: emptyList(),
+                                    launches = result.data?.toImmutableList() ?: persistentListOf(),
                                     isLoading = false,
                                     errorMessage = null
                                 )

app/src/main/java/com/raghav/spacedawnv2/remindersscreen/RemindersScreenState.kt

@@ -1,9 +1,13 @@
 package com.raghav.spacedawnv2.remindersscreen
 
+import androidx.compose.runtime.Stable
 import com.raghav.spacedawnv2.domain.model.Reminder
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.persistentListOf
 
+@Stable
 data class RemindersScreenState(
-    val reminders: List<Reminder> = emptyList(),
+    val reminders: ImmutableList<Reminder> = persistentListOf(),
     val isLoading: Boolean = false,
     val infoMessage: String? = null
 )

app/src/main/java/com/raghav/spacedawnv2/remindersscreen/RemindersScreenVM.kt

@@ -7,6 +7,7 @@ import com.raghav.spacedawnv2.domain.usecase.GetRemindersUseCase
 import com.raghav.spacedawnv2.domain.util.Resource
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
+import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableSharedFlow
@@ -51,7 +52,7 @@ class RemindersScreenVM @Inject constructor(
                 .collect { reminders ->
                     _uiState.update {
                         it.copy(
-                            reminders = reminders,
+                            reminders = reminders.toImmutableList(),
                             isLoading = false,
                             infoMessage = it.infoMessage
                         )

app/src/test/java/com/raghav/spacedawnv2/launchesscreen/LaunchesScreenVMTest.kt

@@ -13,6 +13,7 @@ import com.raghav.spacedawnv2.util.launchDetailDtoString
 import com.raghav.spacedawnv2.util.launchesResponseDtoString
 import com.squareup.moshi.JsonAdapter
 import com.squareup.moshi.Moshi
+import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.test.TestCoroutineScheduler
@@ -59,7 +60,7 @@ class LaunchesScreenVMTest {
             launchesResponse?.results?.filterNotNull()
                 ?: emptyList()
 
-        val expected = LaunchesScreenState(launches = launches)
+        val expected = LaunchesScreenState(launches = launches.toImmutableList())
 
         assertThat(result).isEqualTo(expected)
     }

build.gradle

@@ -2,8 +2,9 @@
 plugins {
     id 'com.android.application' version '8.1.0' apply false
     id 'com.android.library' version '8.1.0' apply false
-    id 'org.jetbrains.kotlin.android' version '1.7.20' apply false
-    id 'org.jetbrains.kotlin.jvm' version '1.8.20' apply false
+    id 'org.jetbrains.kotlin.android' version '1.9.0' apply false
+    id 'org.jetbrains.kotlin.jvm' version '1.9.0' apply false
     id "org.jlleitschuh.gradle.ktlint" version "11.5.0"
-    id 'com.google.dagger.hilt.android' version '2.44' apply false
+    id 'com.google.dagger.hilt.android' version '2.47' apply false
+    id("com.google.devtools.ksp") version "1.9.0-1.0.13" apply false
 }

data/build.gradle

@@ -2,8 +2,8 @@ plugins {
     id 'com.android.library'
     id 'org.jetbrains.kotlin.android'
     id "org.jlleitschuh.gradle.ktlint"
-    // Hilt doesn't supports KSP yet
-    id 'kotlin-kapt'
+    id("com.google.devtools.ksp")
+    id "kotlin-kapt"
     id 'com.google.dagger.hilt.android'
 }
 
@@ -63,17 +63,17 @@ dependencies {
     implementation 'com.squareup.retrofit2:retrofit:2.9.0'
     implementation("com.squareup.retrofit2:converter-moshi:2.9.0")
     implementation("com.squareup.moshi:moshi:1.14.0")
-    kapt("com.squareup.moshi:moshi-kotlin-codegen:1.14.0")
+    ksp("com.squareup.moshi:moshi-kotlin-codegen:1.14.0")
     implementation "com.squareup.okhttp3:okhttp:5.0.0-alpha.2"
     implementation "com.squareup.okhttp3:logging-interceptor:5.0.0-alpha.2"
 
     // Hilt
-    implementation "com.google.dagger:hilt-android:2.44"
-    kapt "com.google.dagger:hilt-compiler:2.44"
+    implementation "com.google.dagger:hilt-android:2.47"
+    kapt "com.google.dagger:hilt-compiler:2.47"
 
     // Room
     implementation "androidx.room:room-runtime:2.5.1"
-    kapt "androidx.room:room-compiler:2.5.1"
+    ksp "androidx.room:room-compiler:2.5.1"
     implementation "androidx.room:room-ktx:2.5.1"
 
     // For making Assertions in Test cases

data/src/main/java/com/raghav/spacedawnv2/data/remote/dto/LaunchDetailDto.kt

@@ -19,15 +19,15 @@ data class LaunchDetailDto(
     @Json(name = "failreason")
     val failreason: String?,
     @Json(name = "hashtag")
-    val hashtag: Any?,
+    val hashtag: String?,
     @Json(name = "holdreason")
     val holdreason: String?,
     @Json(name = "id")
     val id: String,
     @Json(name = "image")
     val image: String?,
     @Json(name = "infographic")
-    val infographic: Any?,
+    val infographic: String?,
     @Json(name = "last_updated")
     val lastUpdated: String?,
     @Json(name = "launch_service_provider")
@@ -55,9 +55,7 @@ data class LaunchDetailDto(
     @Json(name = "pad_launch_attempt_count_year")
     val padLaunchAttemptCountYear: Int?,
     @Json(name = "probability")
-    val probability: Any?,
-    @Json(name = "program")
-    val program: List<ProgramDto?>?,
+    val probability: String?,
     @Json(name = "rocket")
     val rocketDto: RocketDto?,
     @Json(name = "slug")

data/src/main/java/com/raghav/spacedawnv2/data/remote/dto/LaunchesResponseDto.kt

@@ -3,6 +3,7 @@ package com.raghav.spacedawnv2.data.remote.dto
 import com.raghav.spacedawnv2.domain.model.LaunchesResponse
 import com.squareup.moshi.Json
 import com.squareup.moshi.JsonClass
+import kotlinx.collections.immutable.toImmutableList
 
 // @JsonClass is used to make sure that Moshi uses code-gen instead of Reflection
 // for Serializing and Deserializing data
@@ -13,7 +14,7 @@ data class LaunchesResponseDto(
     @Json(name = "next")
     val next: String?,
     @Json(name = "previous")
-    val previous: Any?,
+    val previous: String?,
     @Json(name = "results")
     val results: List<LaunchDetailDto?>?
 )
@@ -23,6 +24,6 @@ fun LaunchesResponseDto.toDomain(): LaunchesResponse {
         count = count,
         next = next,
         previous = previous,
-        results = results?.map { it?.toLaunchDetail() }
+        results = results?.map { it?.toLaunchDetail() }?.toImmutableList()
     )
 }

data/src/main/java/com/raghav/spacedawnv2/data/remote/dto/MissionDto.kt

@@ -13,7 +13,7 @@ data class MissionDto(
     @Json(name = "id")
     val id: Int?,
     @Json(name = "launch_designator")
-    val launchDesignator: Any?,
+    val launchDesignator: String?,
     @Json(name = "name")
     val name: String?,
     @Json(name = "orbit")

data/src/main/java/com/raghav/spacedawnv2/data/remote/dto/PadDto.kt

@@ -15,7 +15,7 @@ data class PadDto(
     @Json(name = "id")
     val id: Int?,
     @Json(name = "info_url")
-    val infoUrl: Any?,
+    val infoUrl: String?,
     @Json(name = "latitude")
     val latitude: String?,
     @Json(name = "location")

data/src/main/java/com/raghav/spacedawnv2/data/remote/dto/ProgramDto.kt

@@ -1,27 +1,27 @@
 package com.raghav.spacedawnv2.data.remote.dto
 
-import com.raghav.spacedawnv2.domain.model.Program
 import com.squareup.moshi.Json
 import com.squareup.moshi.JsonClass
+import kotlinx.collections.immutable.ImmutableList
 
 // @JsonClass is used to make sure that Moshi uses code-gen instead of Reflection
 // for Serializing and Deserializing data
 @JsonClass(generateAdapter = true)
 data class ProgramDto(
     @Json(name = "agencies")
-    val agencies: List<AgencyDto?>?,
+    val agencies: ImmutableList<AgencyDto?>?,
     @Json(name = "description")
     val description: String?,
     @Json(name = "end_date")
-    val endDate: Any?,
+    val endDate: String?,
     @Json(name = "id")
     val id: Int?,
     @Json(name = "image_url")
     val imageUrl: String?,
     @Json(name = "info_url")
     val infoUrl: String?,
     @Json(name = "mission_patches")
-    val missionPatches: List<Any?>?,
+    val missionPatches: ImmutableList<String?>?,
     @Json(name = "name")
     val name: String?,
     @Json(name = "start_date")
@@ -31,19 +31,3 @@ data class ProgramDto(
     @Json(name = "wiki_url")
     val wikiUrl: String?
 )
-
-fun ProgramDto.toProgram(): Program {
-    return Program(
-        agencies = agencies?.map { it?.toAgency() },
-        description = description,
-        end_date = endDate,
-        id = id,
-        image_url = imageUrl,
-        info_url = infoUrl,
-        mission_patches = missionPatches,
-        name = name,
-        start_date = startDate,
-        url = url,
-        wiki_url = wikiUrl
-    )
-}

domain/build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'java-library'
     id 'org.jetbrains.kotlin.jvm'
-    id("com.google.devtools.ksp") version "1.8.20-1.0.11"
+    id("com.google.devtools.ksp")
     id "org.jlleitschuh.gradle.ktlint"
 }
 
@@ -42,4 +42,7 @@ dependencies {
 
     def okhttp_interceptor = "5.0.0-alpha.2"
     api "com.squareup.okhttp3:logging-interceptor:$okhttp_interceptor"
+
+    // For Making Kotlin Collections Immutable as to be considered stable
+    api("org.jetbrains.kotlinx:kotlinx-collections-immutable:0.3.5")
 }

domain/src/main/java/com/raghav/spacedawnv2/domain/model/LaunchesResponse.kt

@@ -1,11 +1,12 @@
 package com.raghav.spacedawnv2.domain.model
 
 import androidx.annotation.Keep
+import kotlinx.collections.immutable.ImmutableList
 
 @Keep
 data class LaunchesResponse(
     val count: Int?,
     val next: String?,
-    val previous: Any?,
-    val results: List<LaunchDetail?>?
+    val previous: String?,
+    val results: ImmutableList<LaunchDetail?>?
 )

domain/src/main/java/com/raghav/spacedawnv2/domain/model/Mission.kt

@@ -6,7 +6,7 @@ import com.squareup.moshi.JsonClass
 data class Mission(
     val description: String?,
     val id: Int?,
-    val launch_designator: Any?,
+    val launch_designator: String?,
     val name: String?,
     val orbit: Orbit?,
     val type: String?

domain/src/main/java/com/raghav/spacedawnv2/domain/model/Pad.kt

@@ -7,7 +7,7 @@ data class Pad(
     val agency_id: Int?,
     val country_code: String?,
     val id: Int?,
-    val info_url: Any?,
+    val info_url: String?,
     val latitude: String?,
     val location: Location?,
     val longitude: String?,