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1 /*
<lambda>null2  * Copyright (C) 2023 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.packageinstaller.v2.viewmodel
18 
19 import android.app.Application
20 import android.content.Intent
21 import androidx.lifecycle.AndroidViewModel
22 import androidx.lifecycle.LiveData
23 import androidx.lifecycle.MediatorLiveData
24 import androidx.lifecycle.MutableLiveData
25 import androidx.lifecycle.distinctUntilChanged
26 import com.android.packageinstaller.v2.model.InstallRepository
27 import com.android.packageinstaller.v2.model.InstallStage
28 import com.android.packageinstaller.v2.model.InstallStaging
29 
30 class InstallViewModel(application: Application, val repository: InstallRepository) :
31     AndroidViewModel(application) {
32 
33     companion object {
34         private val LOG_TAG = InstallViewModel::class.java.simpleName
35     }
36 
37     private val _currentInstallStage = MediatorLiveData<InstallStage>(InstallStaging())
38     val currentInstallStage: MutableLiveData<InstallStage>
39         get() = _currentInstallStage
40 
41     init {
42         // Since installing is an async operation, we may get the install result later in time.
43         // Result of the installation will be set in InstallRepository#installResult.
44         // As such, currentInstallStage will need to add another MutableLiveData as a data source
45         _currentInstallStage.addSource(
46             repository.installResult.distinctUntilChanged()
47         ) { installStage: InstallStage? ->
48             if (installStage != null) {
49                 _currentInstallStage.value = installStage
50             }
51         }
52     }
53 
54     fun preprocessIntent(intent: Intent, callerInfo: InstallRepository.CallerInfo) {
55         val stage = repository.performPreInstallChecks(intent, callerInfo)
56         if (stage.stageCode == InstallStage.STAGE_ABORTED) {
57             _currentInstallStage.value = stage
58         } else {
59             // Since staging is an async operation, we will get the staging result later in time.
60             // Result of the file staging will be set in InstallRepository#mStagingResult.
61             // As such, mCurrentInstallStage will need to add another MutableLiveData
62             // as a data source
63             repository.stageForInstall()
64             _currentInstallStage.addSource(repository.stagingResult) { installStage: InstallStage ->
65                 if (installStage.stageCode != InstallStage.STAGE_READY) {
66                     _currentInstallStage.value = installStage
67                 } else {
68                     checkIfAllowedAndInitiateInstall()
69                 }
70             }
71         }
72     }
73 
74     val stagingProgress: LiveData<Int>
75         get() = repository.stagingProgress
76 
77     private fun checkIfAllowedAndInitiateInstall() {
78         val stage = repository.requestUserConfirmation()
79         if (stage != null) {
80             _currentInstallStage.value = stage
81         }
82     }
83 
84     fun forcedSkipSourceCheck() {
85         val stage = repository.forcedSkipSourceCheck()
86         if (stage != null) {
87             _currentInstallStage.value = stage
88         }
89     }
90 
91     fun cleanupInstall() {
92         repository.cleanupInstall()
93     }
94 
95     fun reattemptInstall() {
96         val stage = repository.reattemptInstall()
97         _currentInstallStage.value = stage
98     }
99 
100     fun initiateInstall() {
101         repository.initiateInstall()
102     }
103 
104     val stagedSessionId: Int
105         get() = repository.stagedSessionId
106 }
107