Updated Application class and other documentation

app/src/main/java/com/example/jetpack_compose_all_in_one/di/MainApp.kt

@@ -10,30 +10,39 @@ import com.google.android.libraries.places.api.Places
 import com.stripe.android.PaymentConfiguration
 import dagger.hilt.android.HiltAndroidApp
 
+/**
+ * Main application class for the Android application.
+ */
 @HiltAndroidApp
-class MainApp: Application() {
-    companion object{
+class MainApp : Application() {
+    companion object {
+        /**
+         * Notification manager instance.
+         */
         lateinit var notificationManager: NotificationManager
     }
 
     override fun onCreate() {
         super.onCreate()
 
-        // App is always above API 26
+        // Create notification channel
         val notificationChannel = NotificationChannel(
             "channel_id",
             "channel_name",
             NotificationManager.IMPORTANCE_HIGH
         )
-        notificationChannel.description = "notification channel desc.."
+        notificationChannel.description = "Notification channel description"
         notificationChannel.enableVibration(true)
         notificationChannel.enableLights(true)
-        notificationChannel.vibrationPattern = longArrayOf(100,200,300,400,300,200,100)
+        notificationChannel.vibrationPattern = longArrayOf(100, 200, 300, 400, 300, 200, 100)
 
         notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
         notificationManager.createNotificationChannel(notificationChannel)
 
+        // Initialize Google Places SDK
         Places.initialize(applicationContext, resources.getString(R.string.GOOGLE_MAPS_API_KEY))
+
+        // Initialize Stripe SDK
         PaymentConfiguration.init(applicationContext, STRIPE_PUBLISHABLE_KEY)
     }
-}
+}

app/src/main/java/com/example/jetpack_compose_all_in_one/di/RoomModules.kt

@@ -12,9 +12,17 @@ import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
 import javax.inject.Singleton
 
+/**
+ * Dagger Hilt module for providing dependencies related to Room database.
+ */
 @Module
 @InstallIn(SingletonComponent::class)
 class RoomModules {
+    /**
+     * Provides an instance of the Room database.
+     * @param context Application context.
+     * @return Instance of the Room database.
+     */
     @Provides
     @Singleton
     fun provideAppDatabase(@ApplicationContext context: Context) = Room.databaseBuilder(
@@ -26,11 +34,21 @@ class RoomModules {
         .addMigrations(migration1To2)
         .build()
 
+    /**
+     * Provides an instance of the AlarmDao.
+     * @param db Instance of the Room database.
+     * @return Instance of the AlarmDao.
+     */
     @Provides
     @Singleton
     fun provideAlarmDao(db: AppDatabase) = db.getAlarmDao()
 
+    /**
+     * Provides an instance of the ProfileDao.
+     * @param db Instance of the Room database.
+     * @return Instance of the ProfileDao.
+     */
     @Provides
     @Singleton
     fun provideProfileDao(db: AppDatabase) = db.getProfileDao()
-}
+}

app/src/main/java/com/example/jetpack_compose_all_in_one/di/StateModule.kt

@@ -9,14 +9,22 @@ import dagger.hilt.InstallIn
 import dagger.hilt.components.SingletonComponent
 import javax.inject.Singleton
 
+/**
+ * Dagger Hilt module for providing dependencies related to state management.
+ */
 @Module
 @InstallIn(SingletonComponent::class)
- class StateModule {
+class StateModule {
 
-     @Singleton
-     @Provides
-     @MviNewsAPI
-     fun provideNewsStates(repository: RemoteNewRepository):NewsState{
-         return NewsState(repository)
-     }
-}
+    /**
+     * Provides an instance of NewsState for MVI (Model-View-Intent) architecture.
+     * @param repository RemoteNewRepository instance.
+     * @return Instance of NewsState.
+     */
+    @Singleton
+    @Provides
+    @MviNewsAPI
+    fun provideNewsStates(repository: RemoteNewRepository): NewsState {
+        return NewsState(repository)
+    }
+}