Added check ad free status option

app/src/main/java/com/a494studios/koreanconjugator/settings/AdFreeCheckListener.java

@@ -0,0 +1,64 @@
+package com.a494studios.koreanconjugator.settings;
+
+import android.app.Activity;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import android.preference.Preference;
+
+import com.a494studios.koreanconjugator.utils.Utils;
+import com.android.billingclient.api.BillingClient;
+import com.android.billingclient.api.BillingResult;
+import com.android.billingclient.api.PurchaseHistoryRecord;
+import com.android.billingclient.api.PurchaseHistoryResponseListener;
+
+import java.util.List;
+
+public class AdFreeCheckListener implements PurchaseHistoryResponseListener {
+    Activity activity;
+    Preference preference;
+
+    public AdFreeCheckListener(Activity activity, Preference preference) {
+        this.activity = activity;
+        this.preference = preference;
+    }
+
+    @Override
+    public void onPurchaseHistoryResponse(@NonNull BillingResult result, @Nullable List<PurchaseHistoryRecord> list) {
+        String msg;
+        int responseCode = result.getResponseCode();
+        switch (responseCode) {
+            case BillingClient.BillingResponseCode.ITEM_ALREADY_OWNED:
+            case BillingClient.BillingResponseCode.OK:
+                boolean isAdFree = list.get(0).getSkus().get(0).equals(Utils.SKU_AD_FREE);
+                Utils.setAdFree(activity, isAdFree);
+                if (isAdFree) {
+                    msg = "Ad-free purchase activated, thank you for supporting Hanji!";
+                } else {
+                    msg = "Ad-free purchase not found";
+                }
+                break;
+            case BillingClient.BillingResponseCode.BILLING_UNAVAILABLE:
+            case BillingClient.BillingResponseCode.FEATURE_NOT_SUPPORTED:
+                msg = "You're device is not compatible. If you purchased an upgrade please contact support for a refund";
+                break;
+            case BillingClient.BillingResponseCode.ITEM_NOT_OWNED:
+                msg = "Ad-free purchase not found";
+                break;
+            case BillingClient.BillingResponseCode.SERVICE_DISCONNECTED:
+            case BillingClient.BillingResponseCode.SERVICE_TIMEOUT:
+            case BillingClient.BillingResponseCode.SERVICE_UNAVAILABLE:
+                msg = "Unable to connect to Google Play store. Please try again later";
+                break;
+            default:
+                msg = "An error occurred. Please try again later";
+                break;
+        }
+
+        activity.runOnUiThread(() -> {
+            Toast.makeText(activity, msg, Toast.LENGTH_LONG).show();
+            preference.setSummary("Click here to check your ad-free status");
+        });
+    }
+}

app/src/main/java/com/a494studios/koreanconjugator/settings/SettingsFragment.java

@@ -1,28 +1,43 @@
 package com.a494studios.koreanconjugator.settings;
 
 
+import android.app.Activity;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.preference.Preference;
 import android.preference.PreferenceFragment;
 
+import com.a494studios.koreanconjugator.CustomApplication;
 import com.a494studios.koreanconjugator.R;
 import com.a494studios.koreanconjugator.utils.Utils;
+import com.android.billingclient.api.BillingClient;
 
 /**
  * A simple {@link PreferenceFragment} subclass.
- *
  */
 public class SettingsFragment extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener {
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         addPreferencesFromResource(R.xml.preferences);
+
+        Activity activity = getActivity();
+        Preference adFreeCheck = findPreference("adFreeCheck");
+        adFreeCheck.setOnPreferenceClickListener(preference -> {
+            adFreeCheck.setSummary("Checking ad-free status...");
+
+            AdFreeCheckListener listener = new AdFreeCheckListener(activity, adFreeCheck);
+            BillingClient client = CustomApplication.getBillingClient();
+            client.queryPurchaseHistoryAsync(BillingClient.SkuType.INAPP, listener);
+
+            return true;
+        });
     }
 
     @Override
     public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
-       // Empty on purpose
+        // Empty on purpose
     }
 
     @Override

app/src/main/res/xml/preferences.xml

@@ -10,6 +10,11 @@
             <intent android:targetClass="com.a494studios.koreanconjugator.settings.FavoritesActivity"
                 android:targetPackage="com.a494studios.koreanconjugator"/>
         </Preference>
+        <Preference
+            android:persistent="false"
+            android:key="adFreeCheck"
+            android:title="Check Ad-free Status"
+            android:summary="Click here to check your ad-free status"/>
     </PreferenceCategory>
     <PreferenceCategory android:title="Legal Information">
         <Preference

app/src/test/java/com/a494studios/koreanconjugator/settings/AdFreeCheckListenerTest.java

@@ -0,0 +1,121 @@
+package com.a494studios.koreanconjugator.settings;
+
+
+import android.preference.Preference;
+
+import androidx.fragment.app.FragmentActivity;
+
+import com.a494studios.koreanconjugator.utils.Utils;
+import com.android.billingclient.api.BillingClient;
+import com.android.billingclient.api.BillingResult;
+import com.android.billingclient.api.PurchaseHistoryRecord;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadows.ShadowToast;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@RunWith(RobolectricTestRunner.class)
+public class AdFreeCheckListenerTest {
+    private FragmentActivity activity;
+    private Preference preference;
+    AdFreeCheckListener listener;
+
+    @Before
+    public void init() {
+        activity = Robolectric.buildActivity(FragmentActivity.class)
+                .create()
+                .start()
+                .resume()
+                .get();
+
+        preference = mock(Preference.class);
+        listener = new AdFreeCheckListener(activity, preference);
+    }
+
+    @Test
+    public void enablesAdFreeWhenOK() {
+        // Setup mock
+        PurchaseHistoryRecord record = mock(PurchaseHistoryRecord.class);
+        ArrayList<String> skus = new ArrayList<>(Collections.singletonList(Utils.SKU_AD_FREE));
+        when(record.getSkus()).thenReturn(skus);
+
+        String msg = "Ad-free purchase activated, thank you for supporting Hanji!";
+        testListener(BillingClient.BillingResponseCode.OK, msg, record);
+        assertTrue(Utils.isAdFree(activity));
+    }
+
+    @Test
+    public void disableWhenNotOwned() {
+        // Setup mock
+        PurchaseHistoryRecord record = mock(PurchaseHistoryRecord.class);
+        ArrayList<String> skus = new ArrayList<>(Collections.singletonList("foobar"));
+        when(record.getSkus()).thenReturn(skus);
+
+        String msg = "Ad-free purchase not found";
+        testListener(BillingClient.BillingResponseCode.OK, msg, record);
+        assertFalse(Utils.isAdFree(activity));
+    }
+
+    @Test
+    public void handlesNotOwned() {
+        String msg = "Ad-free purchase not found";
+        testListener(BillingClient.BillingResponseCode.ITEM_NOT_OWNED, msg);
+        assertNull(Utils.isAdFree(activity));
+    }
+
+    @Test
+    public void handlesIncompatableDevice() {
+        String msg = "You're device is not compatible. If you purchased an upgrade please contact support for a refund";
+        testListener(BillingClient.BillingResponseCode.FEATURE_NOT_SUPPORTED, msg);
+        assertNull(Utils.isAdFree(activity));
+    }
+
+    @Test
+    public void handlesDisconnect() {
+        String msg = "Unable to connect to Google Play store. Please try again later";
+        testListener(BillingClient.BillingResponseCode.SERVICE_DISCONNECTED, msg);
+        assertNull(Utils.isAdFree(activity));
+    }
+
+    @Test
+    public void handlesError() {
+        String msg = "An error occurred. Please try again later";
+        testListener(BillingClient.BillingResponseCode.ERROR, msg);
+        assertNull(Utils.isAdFree(activity));
+    }
+
+    private void testListener(int code, String message) {
+        testListener(code, message, null);
+    }
+
+    private void testListener(int code, String message, PurchaseHistoryRecord record) {
+        // Setup mocks
+        BillingResult result = BillingResult
+                .newBuilder()
+                .setResponseCode(code)
+                .build();
+        if(record == null) {
+            record = mock(PurchaseHistoryRecord.class);
+        }
+        assertNull(Utils.isAdFree(activity));
+
+        listener.onPurchaseHistoryResponse(result, Collections.singletonList(record));
+
+        verify(preference, times(1)).setSummary("Click here to check your ad-free status");
+        assertTrue(ShadowToast.showedToast(message));
+    }
+}