/
inject.kt
70 lines (66 loc) · 2.56 KB
/
inject.kt
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/*
* Copyright 2020 Google LLC
*
* 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 app.tivi.data.repositories.popularshows
import app.tivi.data.daos.PopularDao
import app.tivi.data.daos.TiviShowDao
import app.tivi.data.entities.PopularShowEntry
import app.tivi.data.entities.Success
import app.tivi.inject.ForStore
import com.dropbox.android.external.store4.Store
import com.dropbox.android.external.store4.StoreBuilder
import dagger.Module
import dagger.Provides
import javax.inject.Singleton
import kotlinx.coroutines.CoroutineScope
typealias PopularShowsStore = Store<Int, List<PopularShowEntry>>
@Module
internal class PopularShowsModule {
@Provides
@Singleton
fun providePopularShowsStore(
traktPopularShows: TraktPopularShowsDataSource,
popularShowsDao: PopularDao,
showDao: TiviShowDao,
lastRequestStore: PopularShowsLastRequestStore,
@ForStore scope: CoroutineScope
): PopularShowsStore {
return StoreBuilder.fromNonFlow { page: Int ->
val response = traktPopularShows(page, 20)
if (page == 0 && response is Success) {
lastRequestStore.updateLastRequest()
}
response.getOrThrow()
}.persister(
reader = popularShowsDao::entriesObservable,
writer = { page, response ->
popularShowsDao.withTransaction {
val entries = response.map { (show, entry) ->
entry.copy(showId = showDao.getIdOrSavePlaceholder(show), page = page)
}
if (page == 0) {
// If we've requested page 0, remove any existing entries first
popularShowsDao.deleteAll()
popularShowsDao.insertAll(entries)
} else {
popularShowsDao.updatePage(page, entries)
}
}
},
delete = popularShowsDao::deletePage,
deleteAll = popularShowsDao::deleteAll
).scope(scope).build()
}
}