Acknowledge subscriptions

app/src/androidTestGoogleplay/java/org/tasks/billing/InventoryTest.kt

@@ -2,6 +2,7 @@ package org.tasks.billing
 
 import dagger.hilt.android.testing.HiltAndroidTest
 import dagger.hilt.android.testing.UninstallModules
+import org.json.JSONObject
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertTrue
 import org.junit.Test
@@ -28,6 +29,7 @@ class InventoryTest : InjectingTestCase() {
         withPurchases(monthly01)
 
         assertTrue(inventory.hasPro)
+        assertEquals(1, inventory.subscription.value?.subscriptionPrice)
     }
 
     @Test
@@ -59,7 +61,17 @@ class InventoryTest : InjectingTestCase() {
     }
 
     private fun withPurchases(vararg purchases: String) {
-        preferences.setPurchases(purchases.toHashSet())
+        val asPurchases =
+            purchases
+                .map(::JSONObject)
+                .map {
+                    com.android.billingclient.api.Purchase(
+                        it.getString("zza"),
+                        it.getString("zzb")
+                    )
+                }
+                .map(::Purchase)
+        preferences.setPurchases(asPurchases)
         runOnMainSync {
             inventory = Inventory(
                     context,
@@ -72,9 +84,9 @@ class InventoryTest : InjectingTestCase() {
     }
 
     companion object {
-        private const val annual03 = """{"mOriginalJson":"{\"orderId\":\"GPA.3372-3222-8630-38485\",\"packageName\":\"org.tasks\",\"productId\":\"annual_03\",\"purchaseTime\":1603917413542,\"purchaseState\":0,\"purchaseToken\":\"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg\",\"autoRenewing\":true}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3372-3222-8630-38485","packageName":"org.tasks","productId":"annual_03","purchaseTime":1603917413542,"purchaseState":0,"purchaseToken":"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg","autoRenewing":true}},"mSignature":"Od2ulMjFethYNdA1rTm7AvNMyfFgefCaZhtBeYuTHlMB/XbEd/m9noRlKWMnShFthnQyw97CfrB86aaB52OSWm9pGkPzaRtOJPyL8BJHP9LEjXHOQIQ2Nx9zRF30+EWgV4O0IyeL/o5eUvTQRNnfyUXFdJQRLiKTblQojO6mTCX2fA6lTAntjJpbTbYGuYZjg782gX5HvmwQN5CJu7ZVZCH9AmsnAqZgb7h+MXhquQjv0L4pDVDp3dyDDwgpCAvSRy3550ZANPfNGsQpPr9Iv9IGoK0/INZRrq63VEEAz2mBGkzJgyQUYVtT6AylvNrqdo0w17hs0MLfsj6dwvSlYw\u003d\u003d"}"""
-        private const val monthly01 = """{"mOriginalJson":"{\"orderId\":\"GPA.3369-0544-4429-52590\",\"packageName\":\"org.tasks\",\"productId\":\"monthly_01\",\"purchaseTime\":1603912474316,\"purchaseState\":0,\"purchaseToken\":\"iibbhlkglfjcgdebphiklajb.AO-J1OyJd2kCytLMfT8Vszibf_E99ffLha5cHgOM8o3gYPKy1kD8nIZh0hcEEyOPe7fsdFJrR1-gtvg8WKLFNJoCdqrerJ2Z6Q\",\"autoRenewing\":true}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3369-0544-4429-52590","packageName":"org.tasks","productId":"monthly_01","purchaseTime":1603912474316,"purchaseState":0,"purchaseToken":"iibbhlkglfjcgdebphiklajb.AO-J1OyJd2kCytLMfT8Vszibf_E99ffLha5cHgOM8o3gYPKy1kD8nIZh0hcEEyOPe7fsdFJrR1-gtvg8WKLFNJoCdqrerJ2Z6Q","autoRenewing":true}},"mSignature":"UK7fdCY61QownZW8jDLB1myUKf1llFh9rj5I7P8V03AgdA6LGpEUiCvMvCqHfMGpY3VewmawezqiCUdGWGr+UgS+6QHEuFjpO8L+E36JUDqlU9uoGrTsXLI1gXQNQElGJ71DrKlFBbyyBHSeGWnzijcq4DyyHQzpmsqijxfs0KGjkta2TiOCtyxS+YA569xaGi6lcLGTyMEe7wS5bcjdfwFir0uVtCP+iqjoEd3kt4/03l9BEJYgf8eBxI0vrm4O+jYDJu8gGMTSQZiSqb0wN4sq8D9ksV+BcI4az6LVa1d6nuD+ob0Woe0/P2uoXG8nTEZJnrAZjkG6q8736HP6rw\u003d\u003d"}"""
-        private const val monthly03 = """{"mOriginalJson":"{\"orderId\":\"GPA.3348-6247-8527-38213\",\"packageName\":\"org.tasks\",\"productId\":\"monthly_03\",\"purchaseTime\":1603912730414,\"purchaseState\":0,\"purchaseToken\":\"cmomnojdllomadpoinoabbkd.AO-J1OypdY4iXbMrF21L6Evn3wZSccwiBq-d55G1BVcrkwuH69zOuqb35yZnVynEb9KEvnQvgYQsUpv1AD5749iU-eDo4TRV5A\",\"autoRenewing\":true}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3348-6247-8527-38213","packageName":"org.tasks","productId":"monthly_03","purchaseTime":1603912730414,"purchaseState":0,"purchaseToken":"cmomnojdllomadpoinoabbkd.AO-J1OypdY4iXbMrF21L6Evn3wZSccwiBq-d55G1BVcrkwuH69zOuqb35yZnVynEb9KEvnQvgYQsUpv1AD5749iU-eDo4TRV5A","autoRenewing":true}},"mSignature":"FkkW5FPw2elWnenIoQT7U5BnL2prcuK0GJEaHKtObPujSGRfJWFfThe3yuQ0w9AuTO0EDbm7LbJI44AiVJmpva3Iz3U2np2eNBuUAJIw9eECvQjEvuYk6Vq7LIgJwEsTyA8xRwjLJm+R1mmMWOxURmvDVBgDTHCOJsdUI9s52CSTQf2Ek+XABHugrMJudO43LzDuV2sP9mCqXUnSLbBXe3zZKyhhuz7gD+/5yavkRsPOVcZnsJetdxEmnrip8JEvgtHAvciPkvSD/fYeXdAlY2HiQWK/S0/I+yRaCEK8V+Um78ibbYc4Ng5NcXDm44nTv3F6jQEzYy4qRv/ohmwEQg\u003d\u003d"}"""
-        private const val annual03Cancelled = """{"mOriginalJson":"{\"orderId\":\"GPA.3372-3222-8630-38485\",\"packageName\":\"org.tasks\",\"productId\":\"annual_03\",\"purchaseTime\":1603917413542,\"purchaseState\":0,\"purchaseToken\":\"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg\",\"autoRenewing\":false}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3372-3222-8630-38485","packageName":"org.tasks","productId":"annual_03","purchaseTime":1603917413542,"purchaseState":0,"purchaseToken":"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg","autoRenewing":false}},"mSignature":"jL+2qRv0LtCutoJ86NWaInbx/9/kIWbxXRKYkou74TBjwu9KZ89EpJY632ImEy2xfLd8DHuVuWOcZY646I29Ny2E4HYNAsQEg2du4NRXEHZvu+py4Mi212KF8S2EPNdZCor1wiOJ0zRVBiRAtiCfqxHjQdfKn7FpDiHFrUhMu1huEAxJ0Xrnvxcmkouizw3wzKnAvI+O75LIWWZHCy+1o7s285cSKtQoztVY/nHInJLxV6dk93lAivOlEox+VCLU978lUvv45Rue50fMzS2CRsVFmRt9/yTP8RCiQKzGC/pyHtqNj/ceCrDi4VV8JPhsPd4NUaKk82Oq1xmGXtzEcQ\u003d\u003d"}"""
+        private const val annual03 = """{"zza":"{\"orderId\":\"GPA.3372-3222-8630-38485\",\"packageName\":\"org.tasks\",\"productId\":\"annual_03\",\"purchaseTime\":1603917413542,\"purchaseState\":0,\"purchaseToken\":\"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg\",\"autoRenewing\":true}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3372-3222-8630-38485","packageName":"org.tasks","productId":"annual_03","purchaseTime":1603917413542,"purchaseState":0,"purchaseToken":"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg","autoRenewing":true}},"zzb":"Od2ulMjFethYNdA1rTm7AvNMyfFgefCaZhtBeYuTHlMB/XbEd/m9noRlKWMnShFthnQyw97CfrB86aaB52OSWm9pGkPzaRtOJPyL8BJHP9LEjXHOQIQ2Nx9zRF30+EWgV4O0IyeL/o5eUvTQRNnfyUXFdJQRLiKTblQojO6mTCX2fA6lTAntjJpbTbYGuYZjg782gX5HvmwQN5CJu7ZVZCH9AmsnAqZgb7h+MXhquQjv0L4pDVDp3dyDDwgpCAvSRy3550ZANPfNGsQpPr9Iv9IGoK0/INZRrq63VEEAz2mBGkzJgyQUYVtT6AylvNrqdo0w17hs0MLfsj6dwvSlYw\u003d\u003d"}"""
+        private const val monthly01 = """{"zza":"{\"orderId\":\"GPA.3369-0544-4429-52590\",\"packageName\":\"org.tasks\",\"productId\":\"monthly_01\",\"purchaseTime\":1603912474316,\"purchaseState\":0,\"purchaseToken\":\"iibbhlkglfjcgdebphiklajb.AO-J1OyJd2kCytLMfT8Vszibf_E99ffLha5cHgOM8o3gYPKy1kD8nIZh0hcEEyOPe7fsdFJrR1-gtvg8WKLFNJoCdqrerJ2Z6Q\",\"autoRenewing\":true}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3369-0544-4429-52590","packageName":"org.tasks","productId":"monthly_01","purchaseTime":1603912474316,"purchaseState":0,"purchaseToken":"iibbhlkglfjcgdebphiklajb.AO-J1OyJd2kCytLMfT8Vszibf_E99ffLha5cHgOM8o3gYPKy1kD8nIZh0hcEEyOPe7fsdFJrR1-gtvg8WKLFNJoCdqrerJ2Z6Q","autoRenewing":true}},"zzb":"UK7fdCY61QownZW8jDLB1myUKf1llFh9rj5I7P8V03AgdA6LGpEUiCvMvCqHfMGpY3VewmawezqiCUdGWGr+UgS+6QHEuFjpO8L+E36JUDqlU9uoGrTsXLI1gXQNQElGJ71DrKlFBbyyBHSeGWnzijcq4DyyHQzpmsqijxfs0KGjkta2TiOCtyxS+YA569xaGi6lcLGTyMEe7wS5bcjdfwFir0uVtCP+iqjoEd3kt4/03l9BEJYgf8eBxI0vrm4O+jYDJu8gGMTSQZiSqb0wN4sq8D9ksV+BcI4az6LVa1d6nuD+ob0Woe0/P2uoXG8nTEZJnrAZjkG6q8736HP6rw\u003d\u003d"}"""
+        private const val monthly03 = """{"zza":"{\"orderId\":\"GPA.3348-6247-8527-38213\",\"packageName\":\"org.tasks\",\"productId\":\"monthly_03\",\"purchaseTime\":1603912730414,\"purchaseState\":0,\"purchaseToken\":\"cmomnojdllomadpoinoabbkd.AO-J1OypdY4iXbMrF21L6Evn3wZSccwiBq-d55G1BVcrkwuH69zOuqb35yZnVynEb9KEvnQvgYQsUpv1AD5749iU-eDo4TRV5A\",\"autoRenewing\":true}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3348-6247-8527-38213","packageName":"org.tasks","productId":"monthly_03","purchaseTime":1603912730414,"purchaseState":0,"purchaseToken":"cmomnojdllomadpoinoabbkd.AO-J1OypdY4iXbMrF21L6Evn3wZSccwiBq-d55G1BVcrkwuH69zOuqb35yZnVynEb9KEvnQvgYQsUpv1AD5749iU-eDo4TRV5A","autoRenewing":true}},"zzb":"FkkW5FPw2elWnenIoQT7U5BnL2prcuK0GJEaHKtObPujSGRfJWFfThe3yuQ0w9AuTO0EDbm7LbJI44AiVJmpva3Iz3U2np2eNBuUAJIw9eECvQjEvuYk6Vq7LIgJwEsTyA8xRwjLJm+R1mmMWOxURmvDVBgDTHCOJsdUI9s52CSTQf2Ek+XABHugrMJudO43LzDuV2sP9mCqXUnSLbBXe3zZKyhhuz7gD+/5yavkRsPOVcZnsJetdxEmnrip8JEvgtHAvciPkvSD/fYeXdAlY2HiQWK/S0/I+yRaCEK8V+Um78ibbYc4Ng5NcXDm44nTv3F6jQEzYy4qRv/ohmwEQg\u003d\u003d"}"""
+        private const val annual03Cancelled = """{"zza":"{\"orderId\":\"GPA.3372-3222-8630-38485\",\"packageName\":\"org.tasks\",\"productId\":\"annual_03\",\"purchaseTime\":1603917413542,\"purchaseState\":0,\"purchaseToken\":\"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg\",\"autoRenewing\":false}","mParsedJson":{"nameValuePairs":{"orderId":"GPA.3372-3222-8630-38485","packageName":"org.tasks","productId":"annual_03","purchaseTime":1603917413542,"purchaseState":0,"purchaseToken":"ciogggalpbohflhmjamciehl.AO-J1OyjBpBOnwKCOBSN0Cil7yM65ZYnkn9nGqZO1n3nsHIF_LHv0ZuQqNnThB_JuCt-s9wBij1PyOCoP8axqVILXSiavcyPmg","autoRenewing":false}},"zzb":"jL+2qRv0LtCutoJ86NWaInbx/9/kIWbxXRKYkou74TBjwu9KZ89EpJY632ImEy2xfLd8DHuVuWOcZY646I29Ny2E4HYNAsQEg2du4NRXEHZvu+py4Mi212KF8S2EPNdZCor1wiOJ0zRVBiRAtiCfqxHjQdfKn7FpDiHFrUhMu1huEAxJ0Xrnvxcmkouizw3wzKnAvI+O75LIWWZHCy+1o7s285cSKtQoztVY/nHInJLxV6dk93lAivOlEox+VCLU978lUvv45Rue50fMzS2CRsVFmRt9/yTP8RCiQKzGC/pyHtqNj/ceCrDi4VV8JPhsPd4NUaKk82Oq1xmGXtzEcQ\u003d\u003d"}"""
     }
 }

app/src/generic/java/org/tasks/billing/BillingClientImpl.kt

@@ -3,10 +3,16 @@ package org.tasks.billing
 import android.app.Activity
 import android.content.Context
 import org.tasks.analytics.Firebase
+import org.tasks.jobs.WorkManager
 
 @Suppress("UNUSED_PARAMETER")
-class BillingClientImpl(context: Context, inventory: Inventory, firebase: Firebase) : BillingClient {
-    override suspend fun queryPurchases() {}
+class BillingClientImpl(
+    context: Context,
+    inventory: Inventory,
+    firebase: Firebase,
+    workManager: WorkManager
+) : BillingClient {
+    override suspend fun queryPurchases(throwError: Boolean) {}
     override suspend fun initiatePurchaseFlow(
             activity: Activity,
             sku: String,
@@ -14,6 +20,8 @@ class BillingClientImpl(context: Context, inventory: Inventory, firebase: Fireba
             oldPurchase: Purchase?
     ) {}
 
+    override suspend fun acknowledge(purchase: Purchase) {}
+
     override suspend fun consume(sku: String) {}
 
     companion object {

app/src/generic/java/org/tasks/billing/Purchase.kt

@@ -17,4 +17,8 @@ class Purchase(json: String?) {
     val isTasksSubscription = false
 
     val purchaseToken = ""
+
+    val needsAcknowledgement = false
+
+    val isPurchased = true
 }

app/src/googleplay/java/org/tasks/analytics/Firebase.kt

@@ -3,14 +3,12 @@ package org.tasks.analytics
 import android.content.Context
 import android.os.Bundle
 import androidx.annotation.StringRes
-import com.android.billingclient.api.BillingResult
 import com.google.firebase.analytics.FirebaseAnalytics
 import com.google.firebase.crashlytics.FirebaseCrashlytics
 import com.google.firebase.remoteconfig.FirebaseRemoteConfig
 import com.google.firebase.remoteconfig.ktx.remoteConfigSettings
 import dagger.hilt.android.qualifiers.ApplicationContext
 import org.tasks.R
-import org.tasks.billing.BillingClientImpl.Companion.responseCodeString
 import org.tasks.jobs.WorkManager
 import org.tasks.preferences.Preferences
 import timber.log.Timber
@@ -33,11 +31,13 @@ class Firebase @Inject constructor(
         crashlytics?.recordException(t)
     }
 
-    fun reportIabResult(response: BillingResult, sku: String?) {
-        analytics?.logEvent(FirebaseAnalytics.Event.ECOMMERCE_PURCHASE, Bundle().apply {
-            putString(FirebaseAnalytics.Param.ITEM_ID, sku)
-            putString(FirebaseAnalytics.Param.SUCCESS, response.responseCodeString)
-        })
+    fun reportIabResult(result: String, sku: String, state: String) {
+        logEvent(
+            R.string.event_purchase_result,
+            R.string.param_sku to sku,
+            R.string.param_result to result,
+            R.string.param_state to state,
+        )
     }
 
     fun updateRemoteConfig() {

app/src/googleplay/java/org/tasks/billing/BillingClientImpl.kt

@@ -2,12 +2,14 @@ package org.tasks.billing
 
 import android.app.Activity
 import android.content.Context
+import com.android.billingclient.api.AcknowledgePurchaseParams
 import com.android.billingclient.api.BillingClient.*
 import com.android.billingclient.api.BillingClientStateListener
 import com.android.billingclient.api.BillingFlowParams
 import com.android.billingclient.api.BillingFlowParams.ProrationMode
 import com.android.billingclient.api.BillingResult
 import com.android.billingclient.api.ConsumeParams
+import com.android.billingclient.api.Purchase.PurchaseState
 import com.android.billingclient.api.Purchase.PurchasesResult
 import com.android.billingclient.api.PurchasesUpdatedListener
 import com.android.billingclient.api.SkuDetailsParams
@@ -19,14 +21,19 @@ import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.withContext
 import org.tasks.BuildConfig
 import org.tasks.analytics.Firebase
+import org.tasks.billing.Purchase.Companion.isPurchased
+import org.tasks.billing.Purchase.Companion.needsAcknowledgement
+import org.tasks.jobs.WorkManager
 import timber.log.Timber
+import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 import kotlin.coroutines.suspendCoroutine
 
 class BillingClientImpl(
     @ApplicationContext context: Context?,
     private val inventory: Inventory,
-    private val firebase: Firebase
+    private val firebase: Firebase,
+    private val workManager: WorkManager
 ) : BillingClient, PurchasesUpdatedListener {
     private val billingClient =
         newBuilder(context!!)
@@ -36,7 +43,7 @@ class BillingClientImpl(
     private var connected = false
     private var onPurchasesUpdated: OnPurchasesUpdated? = null
 
-    override suspend fun queryPurchases() = try {
+    override suspend fun queryPurchases(throwError: Boolean) = try {
         executeServiceRequest {
             withContext(Dispatchers.IO + NonCancellable) {
                 val subs = billingClient.queryPurchases(SkuType.SUBS)
@@ -52,7 +59,11 @@ class BillingClientImpl(
             }
         }
     } catch (e: IllegalStateException) {
-        Timber.e(e.message)
+        if (throwError) {
+            throw e
+        } else {
+            Timber.e(e.message)
+        }
     }
 
     override fun onPurchasesUpdated(
@@ -62,10 +73,15 @@ class BillingClientImpl(
         if (success) {
             add(purchases ?: emptyList())
         }
+        workManager.updatePurchases()
         onPurchasesUpdated?.onPurchasesUpdated(success)
-        val skus = purchases?.joinToString(";") { it.sku } ?: "null"
-        Timber.i("onPurchasesUpdated(${result.responseCodeString}, $skus)")
-        firebase.reportIabResult(result, skus)
+        purchases?.forEach {
+            firebase.reportIabResult(
+                result.responseCodeString,
+                it.sku,
+                it.purchaseState.purchaseStateString
+            )
+        }
     }
 
     private fun add(purchases: List<com.android.billingclient.api.Purchase>) {
@@ -93,7 +109,6 @@ class BillingClientImpl(
             val skuDetails =
                 skuDetailsResult
                     .skuDetailsList
-                    ?.takeIf { it.isNotEmpty() }
                     ?.firstOrNull()
                     ?: throw IllegalStateException("Sku $sku not found")
             val params = BillingFlowParams.newBuilder().setSkuDetails(skuDetails)
@@ -109,6 +124,22 @@ class BillingClientImpl(
         }
     }
 
+    override suspend fun acknowledge(purchase: Purchase) {
+        if (purchase.needsAcknowledgement) {
+            val params = AcknowledgePurchaseParams.newBuilder()
+                .setPurchaseToken(purchase.purchaseToken)
+                .build()
+            withContext(Dispatchers.IO) {
+                suspendCoroutine<BillingResult> { cont ->
+                    billingClient.acknowledgePurchase(params) {
+                        Timber.d("acknowledge: ${it.responseCodeString} $purchase")
+                        cont.resume(it)
+                    }
+                }
+            }
+        }
+    }
+
     private suspend fun connect(): BillingResult =
         suspendCoroutine { cont ->
             billingClient.startConnection(
@@ -154,6 +185,7 @@ class BillingClientImpl(
 
     companion object {
         const val TYPE_SUBS = SkuType.SUBS
+        const val STATE_PURCHASED = PurchaseState.PURCHASED
 
         private val PurchasesResult.success: Boolean
             get() = responseCode == BillingResponseCode.OK
@@ -177,6 +209,14 @@ class BillingClientImpl(
                 else -> "UNKNOWN"
             }
 
+        val Int.purchaseStateString: String
+            get() = when (this) {
+                PurchaseState.UNSPECIFIED_STATE -> "UNSPECIFIED_STATE"
+                PurchaseState.PURCHASED -> "PURCHASED"
+                PurchaseState.PENDING -> "PENDING"
+                else -> this.toString()
+            }
+
         private val PurchasesResult.responseCodeString: String
             get() = billingResult.responseCodeString
 

app/src/googleplay/java/org/tasks/billing/Purchase.kt

@@ -2,6 +2,7 @@ package org.tasks.billing
 
 import com.android.billingclient.api.Purchase
 import com.google.gson.GsonBuilder
+import org.tasks.billing.BillingClientImpl.Companion.STATE_PURCHASED
 import java.util.regex.Pattern
 
 class Purchase(private val purchase: Purchase) {
@@ -37,6 +38,12 @@ class Purchase(private val purchase: Purchase) {
     val isCanceled: Boolean
         get() = !purchase.isAutoRenewing
 
+    val needsAcknowledgement: Boolean
+        get() = purchase.needsAcknowledgement
+
+    val isPurchased: Boolean
+        get() = purchase.isPurchased
+
     val subscriptionPrice: Int?
         get() {
             val matcher = PATTERN.matcher(sku)
@@ -62,5 +69,11 @@ class Purchase(private val purchase: Purchase) {
 
     companion object {
         private val PATTERN = Pattern.compile("^(annual|monthly)_([0-3][0-9]|499)$")
+
+        val Purchase.isPurchased: Boolean
+            get() = purchaseState == STATE_PURCHASED
+
+        val Purchase.needsAcknowledgement: Boolean
+            get() = isPurchased && !isAcknowledged
     }
 }

app/src/main/java/org/tasks/Tasks.kt

@@ -15,7 +15,6 @@ import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
-import org.tasks.billing.BillingClient
 import org.tasks.billing.Inventory
 import org.tasks.caldav.CaldavSynchronizer
 import org.tasks.files.FileHelper
@@ -46,7 +45,6 @@ class Tasks : Application(), Configuration.Provider {
     @Inject lateinit var workManager: Lazy<WorkManager>
     @Inject lateinit var refreshScheduler: Lazy<RefreshScheduler>
     @Inject lateinit var geofenceApi: Lazy<GeofenceApi>
-    @Inject lateinit var billingClient: Lazy<BillingClient>
     @Inject lateinit var appWidgetManager: Lazy<AppWidgetManager>
     @Inject lateinit var workerFactory: HiltWorkerFactory
     @Inject lateinit var contentObserver: Lazy<OpenTaskContentObserver>
@@ -86,10 +84,10 @@ class Tasks : Application(), Configuration.Provider {
             scheduleBackup()
             scheduleConfigRefresh()
             OpenTaskContentObserver.registerObserver(context, contentObserver.get())
+            updatePurchases()
         }
         geofenceApi.get().registerAll()
         FileHelper.delete(context, preferences.cacheDirectory)
-        billingClient.get().queryPurchases()
         appWidgetManager.get().reconfigureWidgets()
         CaldavSynchronizer.registerFactories()
     }

app/src/main/java/org/tasks/billing/BillingClient.kt

@@ -3,7 +3,7 @@ package org.tasks.billing
 import android.app.Activity
 
 interface BillingClient {
-    suspend fun queryPurchases()
+    suspend fun queryPurchases(throwError: Boolean = false)
     suspend fun consume(sku: String)
     suspend fun initiatePurchaseFlow(
         activity: Activity,
@@ -11,4 +11,5 @@ interface BillingClient {
         skuType: String,
         oldPurchase: Purchase? = null
     )
+    suspend fun acknowledge(purchase: Purchase)
 }

app/src/main/java/org/tasks/billing/Inventory.kt

@@ -24,7 +24,7 @@ class Inventory @Inject constructor(
         private val localBroadcastManager: LocalBroadcastManager,
         private val caldavDao: CaldavDao
 ) {
-    private val purchases: MutableMap<String, Purchase> = HashMap()
+    val purchases: MutableMap<String, Purchase> = HashMap()
     val subscription = MutableLiveData<Purchase?>()
 
     var hasTasksAccount = false

app/src/main/java/org/tasks/billing/PurchaseActivity.kt

@@ -66,7 +66,11 @@ class PurchaseActivity : InjectingAppCompatActivity(), OnPurchasesUpdated {
 
         localBroadcastManager.registerPurchaseReceiver(purchaseReceiver)
         lifecycleScope.launch {
-            billingClient.queryPurchases()
+            try {
+                billingClient.queryPurchases(throwError = true)
+            } catch (e: Exception) {
+                toast(e.message)
+            }
         }
     }
 

app/src/main/java/org/tasks/injection/ApplicationModule.kt

@@ -12,6 +12,7 @@ import org.tasks.billing.BillingClient
 import org.tasks.billing.BillingClientImpl
 import org.tasks.billing.Inventory
 import org.tasks.data.*
+import org.tasks.jobs.WorkManager
 import org.tasks.locale.Locale
 import org.tasks.notifications.NotificationDao
 import javax.inject.Singleton
@@ -96,6 +97,10 @@ class ApplicationModule {
     fun getPrincipalDao(db: Database) = db.principalDao
 
     @Provides
-    fun getBillingClient(@ApplicationContext context: Context, inventory: Inventory, firebase: Firebase): BillingClient
-            = BillingClientImpl(context, inventory, firebase)
+    fun getBillingClient(
+        @ApplicationContext context: Context,
+        inventory: Inventory,
+        firebase: Firebase,
+        workManager: WorkManager,
+    ): BillingClient = BillingClientImpl(context, inventory, firebase, workManager)
 }

app/src/main/java/org/tasks/jobs/UpdatePurchaseWork.kt

@@ -0,0 +1,40 @@
+package org.tasks.jobs
+
+import android.content.Context
+import androidx.hilt.work.HiltWorker
+import androidx.work.WorkerParameters
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedInject
+import org.tasks.analytics.Firebase
+import org.tasks.billing.BillingClient
+import org.tasks.billing.Inventory
+import org.tasks.injection.BaseWorker
+
+@HiltWorker
+class UpdatePurchaseWork @AssistedInject constructor(
+    @Assisted context: Context,
+    @Assisted workerParams: WorkerParameters,
+    firebase: Firebase,
+    private val inventory: Inventory,
+    private val billingClient: BillingClient,
+) : BaseWorker(context, workerParams, firebase) {
+    override suspend fun run(): Result {
+        try {
+            billingClient.queryPurchases(throwError = true)
+        } catch (e: Exception) {
+            return Result.retry()
+        }
+        inventory.purchases.values
+            .filter { it.needsAcknowledgement }
+            .takeIf { it.isNotEmpty() }
+            ?.forEach { billingClient.acknowledge(it) }
+            ?.apply { billingClient.queryPurchases() }
+        return with(inventory.purchases.values) {
+            when {
+                any { it.needsAcknowledgement } -> Result.retry()
+                all { it.isPurchased } -> Result.success()
+                else -> Result.retry()
+            }
+        }
+    }
+}

app/src/main/java/org/tasks/jobs/WorkManager.kt

@@ -45,6 +45,8 @@ interface WorkManager {
 
     fun cancelNotifications()
 
+    fun updatePurchases()
+
     companion object {
         val REMOTE_CONFIG_INTERVAL_HOURS = if (BuildConfig.DEBUG) 1 else 12.toLong()
         const val MAX_CLEANUP_LENGTH = 500
@@ -63,5 +65,6 @@ interface WorkManager {
         const val TAG_BACKGROUND_SYNC_OPENTASKS = "tag_background_sync_opentasks"
         const val TAG_REMOTE_CONFIG = "tag_remote_config"
         const val TAG_MIGRATE_LOCAL = "tag_migrate_local"
+        const val TAG_UPDATE_PURCHASES = "tag_update_purchases"
     }
 }

app/src/main/java/org/tasks/jobs/WorkManagerImpl.kt

@@ -44,6 +44,7 @@ import org.tasks.jobs.WorkManager.Companion.TAG_SYNC_ETEBASE
 import org.tasks.jobs.WorkManager.Companion.TAG_SYNC_ETESYNC
 import org.tasks.jobs.WorkManager.Companion.TAG_SYNC_GOOGLE_TASKS
 import org.tasks.jobs.WorkManager.Companion.TAG_SYNC_OPENTASK
+import org.tasks.jobs.WorkManager.Companion.TAG_UPDATE_PURCHASES
 import org.tasks.notifications.Throttle
 import org.tasks.preferences.Preferences
 import org.tasks.time.DateTimeUtils
@@ -254,6 +255,9 @@ class WorkManagerImpl constructor(
         alarmManager.cancel(notificationPendingIntent)
     }
 
+    override fun updatePurchases() =
+        enqueueUnique(TAG_UPDATE_PURCHASES, UpdatePurchaseWork::class.java)
+
     @SuppressLint("EnqueueWork")
     private fun enqueueUnique(key: String, c: Class<out Worker?>, time: Long = 0) {
         val delay = time - DateUtilities.now()

app/src/main/java/org/tasks/preferences/fragments/MainSettingsFragment.kt

@@ -19,6 +19,7 @@ import org.tasks.billing.PurchaseActivity
 import org.tasks.caldav.BaseCaldavAccountSettingsActivity
 import org.tasks.data.CaldavAccount
 import org.tasks.data.GoogleTaskAccount
+import org.tasks.extensions.Context.toast
 import org.tasks.injection.InjectingPreferenceFragment
 import org.tasks.preferences.IconPreference
 import org.tasks.preferences.MainPreferences
@@ -59,7 +60,14 @@ class MainSettingsFragment : InjectingPreferenceFragment() {
 
         findPreference(R.string.refresh_purchases).setOnPreferenceClickListener {
             lifecycleScope.launch {
-                billingClient.queryPurchases()
+                try {
+                    billingClient.queryPurchases(throwError = true)
+                    if (inventory.subscription.value == null) {
+                        activity?.toast(R.string.no_google_play_subscription)
+                    }
+                } catch (e: Exception) {
+                    activity?.toast(e.message)
+                }
             }
             false
         }

app/src/main/res/values/keys.xml

@@ -431,6 +431,10 @@
   <string name="param_user_no_churn">user_no_churn</string>
   <string name="param_user_pro">user_pro</string>
   <string name="param_click">click</string>
+  <string name="event_purchase_result">billing_flow_result</string>
+  <string name="param_sku">sku</string>
+  <string name="param_result">result</string>
+  <string name="param_state">state</string>
   <string name="event_todoagenda">cp_todoagenda</string>
   <string name="event_astrid2taskprovider">cp_astrid2taskprovider</string>
   <string name="event_sync_add_account">sync_add_account</string>