Remove recipe from local db when deleted

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

@@ -20,5 +20,5 @@ interface RecipeRepo {
 
     suspend fun updateIsRecipeFavorite(recipeSlug: String, isFavorite: Boolean): Result<Unit>
 
-    suspend fun deleteRecipe(recipeSlug: String): Result<Unit>
+    suspend fun deleteRecipe(entity: RecipeSummaryEntity): Result<Unit>
 }

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

@@ -19,4 +19,6 @@ interface RecipeStorage {
     suspend fun queryRecipeInfo(recipeId: String): FullRecipeEntity?
 
     suspend fun updateFavoriteRecipes(favorites: List<String>)
+
+    suspend fun deleteRecipe(entity: RecipeSummaryEntity)
 }

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

@@ -80,4 +80,9 @@ class RecipeStorageImpl @Inject constructor(
             recipeDao.setNonFavorite(favorites)
         }
     }
+
+    override suspend fun deleteRecipe(entity: RecipeSummaryEntity) {
+        logger.v { "deleteRecipeBySlug() called with: entity = $entity" }
+        recipeDao.deleteRecipe(entity)
+    }
 }

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

@@ -78,15 +78,20 @@ class RecipeRepoImpl @Inject constructor(
     ): Result<Unit> = runCatchingExceptCancel {
         logger.v { "updateIsRecipeFavorite() called with: recipeSlug = $recipeSlug, isFavorite = $isFavorite" }
         dataSource.updateIsRecipeFavorite(recipeSlug, isFavorite)
-        mediator.onFavoritesChange()
+        val favorites = dataSource.getFavoriteRecipes()
+        storage.updateFavoriteRecipes(favorites)
+        pagingSourceFactory.invalidate()
     }.onFailure {
         logger.e(it) { "Can't update recipe's is favorite status" }
     }
 
-    override suspend fun deleteRecipe(recipeSlug: String): Result<Unit> = runCatchingExceptCancel {
-        logger.v { "deleteRecipe() called with: recipeSlug = $recipeSlug" }
-        dataSource.deleteRecipe(recipeSlug)
-        // TODO update local db
+    override suspend fun deleteRecipe(
+        entity: RecipeSummaryEntity
+    ): Result<Unit> = runCatchingExceptCancel {
+        logger.v { "deleteRecipe() called with: entity = $entity" }
+        dataSource.deleteRecipe(entity.slug)
+        storage.deleteRecipe(entity)
+        pagingSourceFactory.invalidate()
     }.onFailure {
         logger.e(it) { "Can't delete recipe" }
     }

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

@@ -83,10 +83,4 @@ class RecipesRemoteMediator @Inject constructor(
         recipes.size
     }
 
-    suspend fun onFavoritesChange() {
-        logger.v { "onFavoritesChange() called" }
-        val favorites = network.getFavoriteRecipes()
-        storage.updateFavoriteRecipes(favorites)
-        pagingSourceFactory.invalidate()
-    }
 }

app/src/main/java/gq/kirmanak/mealient/ui/recipes/RecipesListViewModel.kt

@@ -71,7 +71,7 @@ class RecipesListViewModel @Inject constructor(
     fun onDeleteConfirm(recipeSummaryEntity: RecipeSummaryEntity) {
         logger.v { "onDeleteConfirm() called with: recipeSummaryEntity = $recipeSummaryEntity" }
         viewModelScope.launch {
-            val result = recipeRepo.deleteRecipe(recipeSummaryEntity.slug)
+            val result = recipeRepo.deleteRecipe(recipeSummaryEntity)
             _deleteRecipeResult.emit(result)
         }
     }

app/src/test/java/gq/kirmanak/mealient/data/recipes/impl/RecipeRepoTest.kt

@@ -70,19 +70,25 @@ class RecipeRepoTest : BaseUnitTest() {
 
     @Test
     fun `when remove favorite recipe expect correct sequence`() = runTest {
+        coEvery { dataSource.getFavoriteRecipes() } returns listOf("porridge")
         subject.updateIsRecipeFavorite("cake", false)
         coVerify {
             dataSource.updateIsRecipeFavorite(eq("cake"), eq(false))
-            remoteMediator.onFavoritesChange()
+            dataSource.getFavoriteRecipes()
+            storage.updateFavoriteRecipes(eq(listOf("porridge")))
+            pagingSourceFactory.invalidate()
         }
     }
 
     @Test
     fun `when add favorite recipe expect correct sequence`() = runTest {
+        coEvery { dataSource.getFavoriteRecipes() } returns listOf("porridge", "cake")
         subject.updateIsRecipeFavorite("porridge", true)
         coVerify {
             dataSource.updateIsRecipeFavorite(eq("porridge"), eq(true))
-            remoteMediator.onFavoritesChange()
+            dataSource.getFavoriteRecipes()
+            storage.updateFavoriteRecipes(eq(listOf("porridge", "cake")))
+            pagingSourceFactory.invalidate()
         }
     }
 
@@ -92,7 +98,7 @@ class RecipeRepoTest : BaseUnitTest() {
             dataSource.updateIsRecipeFavorite(any(), any())
         } throws Unauthorized(IOException())
         subject.updateIsRecipeFavorite("porridge", true)
-        coVerify(inverse = true) { remoteMediator.onFavoritesChange() }
+        coVerify(inverse = true) { dataSource.getFavoriteRecipes() }
     }
 
     @Test

app/src/test/java/gq/kirmanak/mealient/data/recipes/impl/RecipesRemoteMediatorTest.kt

@@ -144,27 +144,6 @@ class RecipesRemoteMediatorTest : BaseUnitTest() {
         coVerify { storage.refreshAll(TEST_RECIPE_SUMMARY_ENTITIES) }
     }
 
-    @Test
-    fun `when favorites change expect network call`() = runTest {
-        coEvery { dataSource.getFavoriteRecipes() } returns listOf("cake", "porridge")
-        subject.onFavoritesChange()
-        coVerify { dataSource.getFavoriteRecipes() }
-    }
-
-    @Test
-    fun `when favorites change expect storage update`() = runTest {
-        coEvery { dataSource.getFavoriteRecipes() } returns listOf("cake", "porridge")
-        subject.onFavoritesChange()
-        coVerify { storage.updateFavoriteRecipes(eq(listOf("cake", "porridge"))) }
-    }
-
-    @Test
-    fun `when favorites change expect factory invalidation`() = runTest {
-        coEvery { dataSource.getFavoriteRecipes() } returns listOf("cake", "porridge")
-        subject.onFavoritesChange()
-        coVerify { pagingSourceFactory.invalidate() }
-    }
-
     @Test
     fun `when recipe update requested but favorite fails expect non-zero updates`() = runTest {
         coEvery { dataSource.getFavoriteRecipes() } throws Unauthorized(IOException())

database/src/main/kotlin/gq/kirmanak/mealient/database/recipe/RecipeDao.kt

@@ -46,4 +46,7 @@ interface RecipeDao {
 
     @Query("UPDATE recipe_summaries SET is_favorite = 0 WHERE slug NOT IN (:favorites)")
     suspend fun setNonFavorite(favorites: List<String>)
+
+    @Delete
+    suspend fun deleteRecipe(entity: RecipeSummaryEntity)
 }