1 /*
2  * Copyright (C) 2022 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.systemui.security.data.repository
18 
19 import com.android.systemui.common.coroutine.ChannelExt.trySendWithFailureLogging
20 import com.android.systemui.common.coroutine.ConflatedCallbackFlow.conflatedCallbackFlow
21 import com.android.systemui.dagger.SysUISingleton
22 import com.android.systemui.dagger.qualifiers.Background
23 import com.android.systemui.security.data.model.SecurityModel
24 import com.android.systemui.statusbar.policy.SecurityController
25 import javax.inject.Inject
26 import kotlinx.coroutines.CoroutineDispatcher
27 import kotlinx.coroutines.channels.awaitClose
28 import kotlinx.coroutines.flow.Flow
29 import kotlinx.coroutines.launch
30 
31 interface SecurityRepository {
32     /** The current [SecurityModel]. */
33     val security: Flow<SecurityModel>
34 }
35 
36 @SysUISingleton
37 class SecurityRepositoryImpl
38 @Inject
39 constructor(
40     private val securityController: SecurityController,
41     @Background private val bgDispatcher: CoroutineDispatcher,
42 ) : SecurityRepository {
<lambda>null43     override val security: Flow<SecurityModel> = conflatedCallbackFlow {
44         suspend fun updateState() {
45             trySendWithFailureLogging(SecurityModel.create(securityController, bgDispatcher), TAG)
46         }
47 
48         val callback = SecurityController.SecurityControllerCallback { launch { updateState() } }
49 
50         securityController.addCallback(callback)
51         updateState()
52         awaitClose { securityController.removeCallback(callback) }
53     }
54 
55     companion object {
56         private const val TAG = "SecurityRepositoryImpl"
57     }
58 }
59