Implement MovieRepository and getUpcomingMovies (#69)

* Add MovieRepository

* Add MovieRepositoryImpl

* Implement getUpcomingMovies

data/data-local/src/main/kotlin/com/maximillianleonov/cinemax/data/local/repository/MovieRepositoryImpl.kt

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Maximillian Leonov
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.maximillianleonov.cinemax.data.local.repository
+
+import com.maximillianleonov.cinemax.core.data.remote.common.networkBoundResource
+import com.maximillianleonov.cinemax.core.domain.result.Result
+import com.maximillianleonov.cinemax.data.local.entity.upcoming.UpcomingMovieEntity
+import com.maximillianleonov.cinemax.data.local.mapper.listMap
+import com.maximillianleonov.cinemax.data.local.mapper.toMovieModel
+import com.maximillianleonov.cinemax.data.local.mapper.toUpcomingMovieEntity
+import com.maximillianleonov.cinemax.data.local.source.MovieLocalDataSource
+import com.maximillianleonov.cinemax.data.remote.dto.movie.MovieDto
+import com.maximillianleonov.cinemax.data.remote.source.MovieRemoteDataSource
+import com.maximillianleonov.cinemax.domain.model.MovieModel
+import com.maximillianleonov.cinemax.domain.repository.MovieRepository
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+
+class MovieRepositoryImpl @Inject constructor(
+    private val localDataSource: MovieLocalDataSource,
+    private val remoteDataSource: MovieRemoteDataSource
+) : MovieRepository {
+    override fun getUpcomingMovies(): Flow<Result<List<MovieModel>>> = networkBoundResource(
+        query = { localDataSource.getUpcomingMovies().listMap(UpcomingMovieEntity::toMovieModel) },
+        fetch = { remoteDataSource.getUpcomingMovies() },
+        saveFetchResult = { response ->
+            localDataSource.deleteAndInsertUpcomingMovies(
+                response.results.map(MovieDto::toUpcomingMovieEntity)
+            )
+        }
+    )
+}

domain/src/main/kotlin/com/maximillianleonov/cinemax/domain/repository/MovieRepository.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2022 Maximillian Leonov
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.maximillianleonov.cinemax.domain.repository
+
+import com.maximillianleonov.cinemax.core.domain.result.Result
+import com.maximillianleonov.cinemax.domain.model.MovieModel
+import kotlinx.coroutines.flow.Flow
+
+interface MovieRepository {
+    fun getUpcomingMovies(): Flow<Result<List<MovieModel>>>
+}