Use @Singleton where possible

app/src/main/java/gq/kirmanak/mealient/data/auth/impl/AuthDataSourceImpl.kt

@@ -12,7 +12,9 @@ import retrofit2.HttpException
 import retrofit2.Response
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class AuthDataSourceImpl @Inject constructor(
     private val authServiceFactory: ServiceFactory<AuthService>,
     private val json: Json,

app/src/main/java/gq/kirmanak/mealient/data/auth/impl/AuthRepoImpl.kt

@@ -11,7 +11,9 @@ import kotlinx.coroutines.flow.map
 import okhttp3.HttpUrl.Companion.toHttpUrl
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class AuthRepoImpl @Inject constructor(
     private val dataSource: AuthDataSource,
     private val storage: AuthStorage,

app/src/main/java/gq/kirmanak/mealient/data/auth/impl/AuthStorageImpl.kt

@@ -9,10 +9,12 @@ import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.map
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
 private const val AUTH_HEADER_KEY = "AUTH_TOKEN"
 private const val BASE_URL_KEY = "BASE_URL"
 
+@Singleton
 class AuthStorageImpl @Inject constructor(
     private val sharedPreferences: SharedPreferences
 ) : AuthStorage {

app/src/main/java/gq/kirmanak/mealient/data/disclaimer/DisclaimerStorageImpl.kt

@@ -4,9 +4,11 @@ import android.content.SharedPreferences
 import gq.kirmanak.mealient.extensions.getBooleanOrFalse
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
 private const val IS_DISCLAIMER_ACCEPTED_KEY = "IS_DISCLAIMER_ACCEPTED"
 
+@Singleton
 class DisclaimerStorageImpl @Inject constructor(
     private val sharedPreferences: SharedPreferences
 ) : DisclaimerStorage {

app/src/main/java/gq/kirmanak/mealient/data/network/RetrofitBuilder.kt

@@ -8,7 +8,9 @@ import okhttp3.OkHttpClient
 import retrofit2.Retrofit
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class RetrofitBuilder @Inject constructor(
     private val okHttpClient: OkHttpClient,
     private val json: Json

app/src/main/java/gq/kirmanak/mealient/data/recipes/db/RecipeStorageImpl.kt

@@ -13,7 +13,9 @@ import gq.kirmanak.mealient.extensions.toRecipeIngredientEntity
 import gq.kirmanak.mealient.extensions.toRecipeInstructionEntity
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class RecipeStorageImpl @Inject constructor(
     private val db: AppDb
 ) : RecipeStorage {

app/src/main/java/gq/kirmanak/mealient/data/recipes/impl/RecipeImageLoaderImpl.kt

@@ -9,7 +9,9 @@ import gq.kirmanak.mealient.ui.ImageLoader
 import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class RecipeImageLoaderImpl @Inject constructor(
     private val imageLoader: ImageLoader,
     private val authRepo: AuthRepo

app/src/main/java/gq/kirmanak/mealient/data/recipes/impl/RecipeRepoImpl.kt

@@ -11,8 +11,10 @@ import gq.kirmanak.mealient.data.recipes.network.RecipeDataSource
 import kotlinx.coroutines.CancellationException
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
 @OptIn(ExperimentalPagingApi::class)
+@Singleton
 class RecipeRepoImpl @Inject constructor(
     private val mediator: RecipesRemoteMediator,
     private val storage: RecipeStorage,

app/src/main/java/gq/kirmanak/mealient/data/recipes/impl/RecipesRemoteMediator.kt

@@ -10,8 +10,10 @@ import gq.kirmanak.mealient.data.recipes.network.RecipeDataSource
 import kotlinx.coroutines.CancellationException
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
 @OptIn(ExperimentalPagingApi::class)
+@Singleton
 class RecipesRemoteMediator @Inject constructor(
     private val storage: RecipeStorage,
     private val network: RecipeDataSource,

app/src/main/java/gq/kirmanak/mealient/data/recipes/network/RecipeDataSourceImpl.kt

@@ -6,7 +6,9 @@ import gq.kirmanak.mealient.data.recipes.network.response.GetRecipeResponse
 import gq.kirmanak.mealient.data.recipes.network.response.GetRecipeSummaryResponse
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class RecipeDataSourceImpl @Inject constructor(
     private val authRepo: AuthRepo,
     private val recipeServiceFactory: ServiceFactory<RecipeService>,

app/src/main/java/gq/kirmanak/mealient/ui/picasso/ImageLoaderPicasso.kt

@@ -5,7 +5,9 @@ import com.squareup.picasso.Picasso
 import gq.kirmanak.mealient.ui.ImageLoader
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class ImageLoaderPicasso @Inject constructor(
     private val picasso: Picasso
 ) : ImageLoader {

app/src/main/java/gq/kirmanak/mealient/ui/picasso/PicassoBuilder.kt

@@ -8,7 +8,9 @@ import gq.kirmanak.mealient.BuildConfig
 import okhttp3.OkHttpClient
 import timber.log.Timber
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class PicassoBuilder @Inject constructor(
     @ApplicationContext private val context: Context,
     private val okHttpClient: OkHttpClient