1 /* <lambda>null2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.wallpaper.picker.category.domain.interactor.implementations 18 19 import com.android.wallpaper.picker.category.data.repository.WallpaperCategoryRepository 20 import com.android.wallpaper.picker.category.domain.interactor.CategoryInteractor 21 import com.android.wallpaper.picker.data.category.CategoryModel 22 import com.android.wallpaper.picker.di.modules.BackgroundDispatcher 23 import javax.inject.Inject 24 import javax.inject.Singleton 25 import kotlinx.coroutines.CoroutineScope 26 import kotlinx.coroutines.flow.Flow 27 import kotlinx.coroutines.flow.combine 28 import kotlinx.coroutines.flow.emptyFlow 29 import kotlinx.coroutines.flow.filter 30 import kotlinx.coroutines.flow.flatMapLatest 31 import kotlinx.coroutines.launch 32 33 /** This class implements the business logic in assembling ungrouped category models */ 34 @Singleton 35 class CategoryInteractorImpl 36 @Inject 37 constructor( 38 private val defaultWallpaperCategoryRepository: WallpaperCategoryRepository, 39 @BackgroundDispatcher private val backgroundScope: CoroutineScope, 40 ) : CategoryInteractor { 41 42 override val categories: Flow<List<CategoryModel>> = 43 defaultWallpaperCategoryRepository.isDefaultCategoriesFetched 44 .filter { it } 45 .flatMapLatest { 46 combine( 47 defaultWallpaperCategoryRepository.onDeviceCategory, 48 defaultWallpaperCategoryRepository.systemCategories, 49 defaultWallpaperCategoryRepository.thirdPartyLiveWallpaperCategory, 50 ) { onDeviceCategory, systemCategories, thirdPartyLiveWallpaperCategory -> 51 val combinedList = (systemCategories + thirdPartyLiveWallpaperCategory) 52 val finalList = onDeviceCategory?.let { combinedList + it } ?: combinedList 53 // Sort the categories based on their priority value 54 finalList.sortedBy { it.commonCategoryData.priority } 55 } 56 } 57 58 override val isNetworkCategoriesNotEmpty: Flow<Boolean> = emptyFlow() 59 60 override fun refreshNetworkCategories() {} 61 62 override fun refreshThirdPartyLiveWallpaperCategories() { 63 backgroundScope.launch { 64 defaultWallpaperCategoryRepository.refreshThirdPartyLiveWallpaperCategories() 65 } 66 } 67 } 68