@Provides
@Singleton
@JvmStatic
internal fun provideHuntPersister(application: Application): Persister<BufferedSource, BarCode> =
        FileSystemPersisterFactory.create(application.cacheDir,
                { barCode: BarCode -> barCode.type + "/" + barCode.key })


@Provides
@Singleton
@JvmStatic
internal fun provideHuntStore(api: HuntAPI, moshi: Moshi,
                              persister: Persister<BufferedSource, BarCode>):
Store<Hunt, BarCode> = StoreBuilder.parsedWithKey<Barcode, BufferedSource, Data>()
        .fetcher {api.getData(it.key) }
        .parsers(MoshiParserFactory.createSourceParser<Data>(moshi, Data::class.java))
        .persister(persister)
        .open()