1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright (C) 2023 MURENA SAS
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package foundation.e.advancedprivacy.domain.usecases
import foundation.e.advancedprivacy.data.repositories.AppListsRepository
import foundation.e.advancedprivacy.domain.entities.ApplicationDescription
import foundation.e.advancedprivacy.features.trackers.AppWithTrackersCount
import foundation.e.advancedprivacy.features.trackers.TrackerWithAppsCount
import foundation.e.advancedprivacy.trackers.data.StatsDatabase
import foundation.e.advancedprivacy.trackers.data.TrackersRepository
import foundation.e.advancedprivacy.trackers.domain.entities.Tracker
import kotlinx.coroutines.flow.first
class TrackersAndAppsListsUseCase(
private val statsDatabase: StatsDatabase,
private val trackersRepository: TrackersRepository,
private val appListsRepository: AppListsRepository,
) {
suspend fun getAppsAndTrackersCounts(): Pair<List<AppWithTrackersCount>, List<TrackerWithAppsCount>> {
val trackersAndAppsIds = statsDatabase.getDistinctTrackerAndApp()
val trackersAndApps = mapIdsToEntities(trackersAndAppsIds)
val (countByApp, countByTracker) = foldToCountByEntityMaps(trackersAndApps)
val appList = buildAppList(countByApp)
val trackerList = buildTrackerList(countByTracker)
return appList to trackerList
}
private fun buildTrackerList(countByTracker: Map<Tracker, Int>): List<TrackerWithAppsCount> {
return countByTracker.map { (tracker, count) ->
TrackerWithAppsCount(tracker = tracker, appsCount = count)
}.sortedByDescending { it.appsCount }
}
private suspend fun buildAppList(countByApp: Map<ApplicationDescription, Int>): List<AppWithTrackersCount> {
return appListsRepository.apps().first().map { app: ApplicationDescription ->
AppWithTrackersCount(app = app, trackersCount = countByApp[app] ?: 0)
}.sortedByDescending { it.trackersCount }
}
private suspend fun mapIdsToEntities(trackersAndAppsIds: List<Pair<String, String>>): List<Pair<Tracker, ApplicationDescription>> {
return trackersAndAppsIds.mapNotNull { (trackerId, apId) ->
trackersRepository.getTracker(trackerId)?.let { tracker ->
appListsRepository.getDisplayableApp(apId)?.let { app ->
tracker to app
}
}
// appListsRepository.getDisplayableApp() may transform many apId to one
// ApplicationDescription, so the lists is not distinct anymore.
}.distinct()
}
private fun foldToCountByEntityMaps(trackersAndApps: List<Pair<Tracker, ApplicationDescription>>):
Pair<Map<ApplicationDescription, Int>, Map<Tracker, Int>> {
return trackersAndApps.fold(
mutableMapOf<ApplicationDescription, Int>() to mutableMapOf<Tracker, Int>()
) { (countByApp, countByTracker), (tracker, app) ->
countByApp[app] = countByApp.getOrDefault(app, 0) + 1
countByTracker[tracker] = countByTracker.getOrDefault(tracker, 0) + 1
countByApp to countByTracker
}
}
}
|
