draft age check

Author: UweTrottmann

app/src/main/java/com/battlelancer/seriesguide/SgApp.kt

@@ -166,6 +166,11 @@ class SgApp : Application() {
                 appContainer.billingRepository.startAndConnectToBillingService()
             }
         }
+
+        // If necessary, run age checks. BaseTopActivity will check for the result.
+        coroutineScope.launch {
+            appContainer.ageCheck.run(appContainer.installedBy)
+        }
     }
 
     /**

app/src/main/java/com/battlelancer/seriesguide/SgAppContainer.kt

@@ -7,6 +7,7 @@ import android.content.Context
 import com.battlelancer.seriesguide.billing.BillingRepository
 import com.battlelancer.seriesguide.diagnostics.DebugLogBuffer
 import com.battlelancer.seriesguide.diagnostics.DebugLogDatabase
+import com.battlelancer.seriesguide.util.AgeCheck
 import com.battlelancer.seriesguide.util.PackageTools
 import com.battlelancer.seriesguide.util.PackageTools.isEuropeanEconomicArea
 import com.battlelancer.seriesguide.util.PackageTools.isUnitedStates
@@ -54,6 +55,10 @@ class SgAppContainer(context: Context, coroutineScope: CoroutineScope) {
 //            .let { if (BuildConfig.DEBUG) true else it }
     }
 
+    val ageCheck by lazy {
+        AgeCheck(context)
+    }
+
     val billingRepository by lazy {
         BillingRepository(context, coroutineScope)
     }

app/src/main/java/com/battlelancer/seriesguide/ui/BaseTopActivity.kt

@@ -22,6 +22,7 @@ import com.battlelancer.seriesguide.backend.settings.HexagonSettings
 import com.battlelancer.seriesguide.billing.BillingTools
 import com.battlelancer.seriesguide.dataliberation.BackupSettings
 import com.battlelancer.seriesguide.dataliberation.DataLiberationActivity
+import com.battlelancer.seriesguide.getSgAppContainer
 import com.battlelancer.seriesguide.preferences.MoreOptionsActivity
 import com.battlelancer.seriesguide.stats.StatsActivity
 import com.battlelancer.seriesguide.sync.AccountUtils
@@ -182,6 +183,8 @@ abstract class BaseTopActivity : BaseMessageActivity() {
         // manually check whenever returning to a top-level activity.
         BillingTools.updateUnlockStateAsync(this)
 
+        getSgAppContainer().ageCheck.showDialogIfUserDoesNotPassAgeCheck(this)
+
         // Display important notifications, most important first as others will not display if there
         // already is a notification.
         if (BillingTools.isNotifyUnlockAllExpired()) {

app/src/main/java/com/battlelancer/seriesguide/util/AgeCheck.kt

@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright © 2025 Uwe Trottmann <[email protected]>
+
+package com.battlelancer.seriesguide.util
+
+import android.app.Activity
+import android.content.Context
+import com.battlelancer.seriesguide.R
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import timber.log.Timber
+
+/**
+ *
+ */
+class AgeCheck(context: Context) {
+
+    /**
+     * Whether the user should be prevented from using the app.
+     */
+    private var preventUsingApp: Boolean = false
+
+    suspend fun run(installedBy: PackageTools.InstallingPackage) {
+        withContext(Dispatchers.Default) {
+            when (installedBy) {
+                PackageTools.InstalledByAmazonStore -> {
+                    Timber.i("Age check using Amazon App Store")
+                    // TODO
+                }
+                PackageTools.InstalledByPlayStore -> {
+                    Timber.i("Age check using Google Play Store")
+                    // TODO
+                }
+                else -> {
+                    Timber.i("Age check not necessary")
+                    preventUsingApp = false
+                }
+            }
+        }
+    }
+
+    fun showDialogIfUserDoesNotPassAgeCheck(activity: Activity) {
+        if (!preventUsingApp) return
+
+        Timber.i("User does not pass age check, prevent using app")
+
+        // TODO Add string resources
+        MaterialAlertDialogBuilder(activity)
+            .setCancelable(false)
+            .setTitle("Time to leave")
+            .setMessage("Time to leave")
+            .setPositiveButton(R.string.dismiss) { dialog, which ->
+                // While not perfect (when launching into for ex. the movies screen the app will
+                // create the main activity and show the dialog again) it's a simple, working
+                // solution.
+                activity.finishAndRemoveTask()
+            }
+            .show()
+    }
+
+}