enhancement: Don't show trackers for uninstalled apps

app/src/main/java/org/eu/exodus_privacy/exodusprivacy/ExodusUpdateService.kt

@@ -64,6 +64,7 @@ class ExodusUpdateService : LifecycleService() {
 
     // Inject required modules
     var applicationList = mutableListOf<Application>()
+    private var applicationListAfterUninstall = mutableListOf<Application>()
 
     @Inject
     lateinit var networkManager: NetworkManager
@@ -138,6 +139,7 @@ class ExodusUpdateService : LifecycleService() {
 
     private fun launchFetch(firstTime: Boolean) {
         // create list of installed packages, that are system apps or launchable
+
         validPackages = exodusPackageRepository.getValidPackageList()
         val numberOfInstalledPackages = validPackages.size
 
@@ -242,6 +244,7 @@ class ExodusUpdateService : LifecycleService() {
             Toast.LENGTH_SHORT
         ).show()
         serviceScope.launch {
+            if (!firstTime) removeUninstalledApps()
             Log.d(TAG, "Refreshing trackers database.")
             fetchTrackers()
         }.invokeOnCompletion { trackerThrow ->
@@ -358,6 +361,27 @@ class ExodusUpdateService : LifecycleService() {
         }
     }
 
+    private suspend fun removeUninstalledApps() {
+        try {
+            applicationListAfterUninstall =
+                exodusPackageRepository.getApplicationList(validPackages)
+            val packageNameListAfterUninstall = mutableListOf<String>()
+            applicationListAfterUninstall.forEach { packageNameListAfterUninstall.add(it.packageName) }
+            val packageNameList = exodusDatabaseRepository.getAllPackageNames().toMutableList()
+            val listOfPackageNameToBeRemove = mutableListOf<String>()
+            if (packageNameList.size > packageNameListAfterUninstall.size) {
+                packageNameList.forEach {
+                    if (!packageNameListAfterUninstall.contains(it)) {
+                        listOfPackageNameToBeRemove.add(it)
+                    }
+                }
+                exodusDatabaseRepository.deleteApps(listOfPackageNameToBeRemove)
+            }
+        } catch (e: Exception) {
+            Log.e(TAG, "Unable to remove apps.", e)
+        }
+    }
+
     fun countAppsHavingTrackers(
         appList: MutableList<ExodusApplication>
     ): Int {

app/src/main/java/org/eu/exodus_privacy/exodusprivacy/manager/database/ExodusDatabaseRepository.kt

@@ -88,4 +88,14 @@ class ExodusDatabaseRepository @Inject constructor(
         Log.d(TAG, "Querying all apps as live data.")
         return exodusApplicationDao.queryAllApps()
     }
+
+    suspend fun deleteApps(listOfPackages: List<String>) {
+        Log.d(TAG, "Deleting all uninstalled apps.")
+        return exodusApplicationDao.deleteApp(listOfPackages)
+    }
+
+    suspend fun getAllPackageNames(): List<String> {
+        Log.d(TAG, "Fetching all ExodusApplication packageName from DB.")
+        return exodusApplicationDao.getPackageNames()
+    }
 }

app/src/main/java/org/eu/exodus_privacy/exodusprivacy/manager/database/app/ExodusApplicationDao.kt

@@ -20,4 +20,10 @@ interface ExodusApplicationDao {
 
     @Query("SELECT * FROM exodusapplication ORDER BY name COLLATE NOCASE")
     fun queryAllApps(): LiveData<List<ExodusApplication>>
+
+    @Query("DELETE FROM exodusapplication WHERE packageName IN (:listOfPackages)")
+    suspend fun deleteApp(listOfPackages: List<String>)
+
+    @Query("SELECT packageName FROM exodusapplication")
+    suspend fun getPackageNames(): List<String>
 }