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.filter
29 import kotlinx.coroutines.flow.flatMapLatest
30 import kotlinx.coroutines.launch
31 
32 /** This class implements the business logic in assembling ungrouped category models */
33 @Singleton
34 class CategoryInteractorImpl
35 @Inject
36 constructor(
37     private val defaultWallpaperCategoryRepository: WallpaperCategoryRepository,
38     @BackgroundDispatcher private val backgroundScope: CoroutineScope,
39 ) : CategoryInteractor {
40 
41     override val categories: Flow<List<CategoryModel>> =
42         defaultWallpaperCategoryRepository.isDefaultCategoriesFetched
43             .filter { it }
44             .flatMapLatest {
45                 combine(
46                     defaultWallpaperCategoryRepository.onDeviceCategory,
47                     defaultWallpaperCategoryRepository.systemCategories,
48                     defaultWallpaperCategoryRepository.thirdPartyLiveWallpaperCategory,
49                 ) { onDeviceCategory, systemCategories, thirdPartyLiveWallpaperCategory ->
50                     val combinedList = (systemCategories + thirdPartyLiveWallpaperCategory)
51                     val finalList = onDeviceCategory?.let { combinedList + it } ?: combinedList
52                     // Sort the categories based on their priority value
53                     finalList.sortedBy { it.commonCategoryData.priority }
54                 }
55             }
56 
57     override fun refreshNetworkCategories() {}
58 
59     override fun refreshThirdPartyLiveWallpaperCategories() {
60         backgroundScope.launch {
61             defaultWallpaperCategoryRepository.refreshThirdPartyLiveWallpaperCategories()
62         }
63     }
64 }
65