package de.jeisfeld.augendiagnoselib.activities;
import android.Manifest;
import android.app.DialogFragment;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.view.Menu;
import android.view.MenuItem;
import com.android.vending.billing.Purchase;
import com.android.vending.billing.PurchasedSku;
import com.android.vending.billing.SkuDetails;
import java.math.BigInteger;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import de.jeisfeld.augendiagnoselib.Application;
import de.jeisfeld.augendiagnoselib.Application.AuthorizationLevel;
import de.jeisfeld.augendiagnoselib.R;
import de.jeisfeld.augendiagnoselib.util.DialogUtil;
import de.jeisfeld.augendiagnoselib.util.DialogUtil.ConfirmDialogFragment.ConfirmDialogListener;
import de.jeisfeld.augendiagnoselib.util.DialogUtil.DisplayMessageDialogFragment.MessageDialogListener;
import de.jeisfeld.augendiagnoselib.util.EncryptionUtil;
import de.jeisfeld.augendiagnoselib.util.GoogleBillingHelper;
import de.jeisfeld.augendiagnoselib.util.GoogleBillingHelper.OnInventoryFinishedListener;
import de.jeisfeld.augendiagnoselib.util.GoogleBillingHelper.OnPurchaseSuccessListener;
import de.jeisfeld.augendiagnoselib.util.PreferenceUtil;
import de.jeisfeld.augendiagnoselib.util.ReleaseNotesUtil;
import de.jeisfeld.augendiagnoselib.util.TrackingUtil;
import de.jeisfeld.augendiagnoselib.util.TrackingUtil.Category;
/**
* Base activity being the subclass of most application activities. Handles the help menu, and handles startup activities related to authorization.
*/
public abstract class StandardActivity extends AdMarvelActivity {
/**
* The request code for the unlocker app.
*/
private static final int REQUEST_CODE_UNLOCKER = 100;
/**
* The request code for the rating on Google Play.
*/
private static final int REQUEST_CODE_RATING = 101;
/**
* The request code used to query for permission.
*/
protected static final int REQUEST_CODE_PERMISSION = 6;
/**
* The resource key for the authorizaton with the unlocker app.
*/
private static final String STRING_EXTRA_REQUEST_KEY = "de.jeisfeld.augendiagnoseunlocker.REQUEST_KEY";
/**
* The resource key for the response from the unlocker app.
*/
private static final String STRING_RESULT_RESPONSE_KEY = "de.jeisfeld.augendiagnoseunlocker.RESPONSE_KEY";
/**
* The random string used for authorization versus unlocker app.
*/
@Nullable
private String mRandomAuthorizationString = null;
/**
* Flag indicating if the creation of the activity is failed.
*/
private boolean mIsCreationFailed = false;
protected final boolean isCreationFailed() {
return mIsCreationFailed;
}
// OVERRIDABLE
@Override
protected void onCreate(@Nullable final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Application.setLanguage();
DialogUtil.checkOutOfMemoryError(this);
// Check permissions for Android 6
final String[] missingPermissions = checkRequiredPermissions();
if (missingPermissions.length > 0) {
// prevent NonSerializableException when changing orientation while showing confirmation dialog
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);
DialogUtil.displayConfirmationMessage(this, new ConfirmDialogListener() {
/**
* The serial version UID.
*/
private static final long serialVersionUID = 1L;
@Override
public void onDialogPositiveClick(final DialogFragment dialog) {
ActivityCompat.requestPermissions(StandardActivity.this, missingPermissions, REQUEST_CODE_PERMISSION);
}
@Override
public void onDialogNegativeClick(final DialogFragment dialog) {
finish();
}
}, R.string.button_continue, getPermissionInfoResource());
}
if (Intent.ACTION_MAIN.equals(getIntent().getAction())) {
// Check authorization.
if (Application.getAuthorizationLevel() == AuthorizationLevel.NO_ACCESS) {
mIsCreationFailed = true;
// Try authorization via unlocker app.
checkUnlockerApp();
return;
}
else {
if (savedInstanceState == null) {
test();
// Initial tip is triggered first, so that it is hidden behind release notes.
DialogUtil.displayTip(this, R.string.message_tip_firstuse, R.string.key_tip_firstuse);
// When starting from launcher, check if started the first time in this version. If yes, display release
// notes.
int storedVersion = PreferenceUtil.getSharedPreferenceIntString(R.string.key_internal_stored_version, null);
int currentVersion = Application.getVersion();
if (storedVersion < currentVersion) {
ReleaseNotesUtil.displayReleaseNotes(this, storedVersion == 0, storedVersion + 1, currentVersion);
}
// Check unlocker app.
checkUnlockerApp();
// Check in-app purchases
GoogleBillingHelper.initialize(this, new OnInventoryFinishedListener() {
@Override
public void handleProducts(final List<PurchasedSku> purchases, final List<SkuDetails> availableProducts,
final boolean isPremium) {
PreferenceUtil.setSharedPreferenceBoolean(R.string.key_internal_has_premium_pack, isPremium);
if (isPremium) {
invalidateOptionsMenu();
}
GoogleBillingHelper.dispose();
}
});
}
}
}
String[] activitiesWithHomeEnablement = getResources().getStringArray(R.array.activities_with_home_enablement);
if (getActionBar() != null) {
getActionBar().setDisplayHomeAsUpEnabled(Arrays.asList(activitiesWithHomeEnablement).contains(getClass().getName()));
}
}
// OVERRIDABLE
@Override
protected void onResume() {
super.onResume();
TrackingUtil.sendScreen(this);
}
/*
* Inflate options menu.
*/
@Override
public final boolean onCreateOptionsMenu(@NonNull final Menu menu) {
getMenuInflater().inflate(R.menu.menu_default, menu);
String[] activitiesWithActionSettings = getResources().getStringArray(R.array.activities_with_action_settings);
boolean hasActionSettings = Arrays.asList(activitiesWithActionSettings).contains(getClass().getName());
if (hasActionSettings) {
menu.findItem(R.id.action_settings).setVisible(true);
}
String[] activitiesWithActionCamera = getResources().getStringArray(R.array.activities_with_action_camera);
boolean hasActionCamera = Arrays.asList(activitiesWithActionCamera).contains(getClass().getName());
if (hasActionCamera) {
menu.findItem(R.id.action_camera).setVisible(true);
}
String[] activitiesWithActionPurchase = getResources().getStringArray(R.array.activities_with_action_purchase);
boolean hasActionPurchase = Arrays.asList(activitiesWithActionPurchase).contains(getClass().getName());
if (hasActionPurchase) {
if (Application.getAuthorizationLevel() != AuthorizationLevel.FULL_ACCESS) {
menu.findItem(R.id.action_purchase).setVisible(true);
}
else if (PreferenceUtil.getSharedPreferenceBoolean(R.string.key_show_rating_icon)) {
menu.findItem(R.id.action_rating).setVisible(true);
}
}
if (getHelpResource() == 0 || getString(getHelpResource()).length() == 0) {
// Hide help icon if there is no help text
menu.findItem(R.id.action_help).setVisible(false);
}
return super.onCreateOptionsMenu(menu);
}
/*
* Handle menu actions.
*/
@Override
public final boolean onOptionsItemSelected(@NonNull final MenuItem item) {
int itemId = item.getItemId();
if (itemId == R.id.action_help) {
DisplayHtmlActivity.startActivity(this, getHelpResource());
return true;
}
else if (itemId == R.id.action_settings) {
SettingsActivity.startActivity(this, null);
return true;
}
else if (itemId == R.id.action_camera) {
CameraActivity.startActivity(this, null);
finish();
return true;
}
else if (itemId == R.id.action_purchase) {
DialogUtil.displayToast(this, R.string.message_dialog_triggering_purchase);
triggerDefaultPurchase();
return true;
}
else if (itemId == R.id.action_rating) {
triggerRating();
return true;
}
else {
return super.onOptionsItemSelected(item);
}
}
/**
* After all other authorization options have failed, try to authorize via premium pack.
*/
private void checkPremiumPackAfterAuthorizationFailure() {
if (mIsCreationFailed) {
GoogleBillingHelper.initialize(this, new OnInventoryFinishedListener() {
@Override
public void handleProducts(final List<PurchasedSku> purchases, final List<SkuDetails> availableProducts,
final boolean isPremium) {
PreferenceUtil.setSharedPreferenceBoolean(R.string.key_internal_has_premium_pack, isPremium);
GoogleBillingHelper.dispose();
if (isPremium) {
finish();
startActivity(getIntent());
}
else {
DialogUtil.displayAuthorizationError(StandardActivity.this, R.string.message_dialog_trial_time);
}
}
});
}
}
/**
* Check authorization via unlocker app.
*/
private void checkUnlockerApp() {
Intent intent = getPackageManager().getLaunchIntentForPackage("de.jeisfeld.augendiagnoseunlocker");
if (intent == null) {
updateUnlockerAppStatus(false);
checkPremiumPackAfterAuthorizationFailure();
}
else {
SecureRandom random = new SecureRandom();
mRandomAuthorizationString = new BigInteger(130, random).toString(32); // MAGIC_NUMBER
intent.putExtra(STRING_EXTRA_REQUEST_KEY, mRandomAuthorizationString);
intent.setFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
startActivityForResult(intent, REQUEST_CODE_UNLOCKER);
}
}
/**
* Update the status of the unlocker app. Set to "true" if found. Set to false only after some failed retries.
*
* @param isCheckSuccessful flag indicating if the verification with unlocker app was successful.
*/
private void updateUnlockerAppStatus(final boolean isCheckSuccessful) {
if (isCheckSuccessful) {
PreferenceUtil.setSharedPreferenceBoolean(R.string.key_internal_has_unlocker_app, true);
PreferenceUtil.setSharedPreferenceInt(R.string.key_internal_unlocker_app_retries, 0);
}
else {
int retries = PreferenceUtil.incrementCounter(R.string.key_internal_unlocker_app_retries);
if (retries > 10) { // MAGIC_NUMBER
PreferenceUtil.setSharedPreferenceBoolean(R.string.key_internal_has_unlocker_app, false);
}
}
}
/**
* Trigger the purchase of the default premium pack.
*/
private void triggerDefaultPurchase() {
// First dispose, in order to be sure to be able to instantiate the helper.
GoogleBillingHelper.dispose();
GoogleBillingHelper.initialize(this, new OnInventoryFinishedListener() {
@Override
public void handleProducts(final List<PurchasedSku> purchases, final List<SkuDetails> availableProducts, final boolean isPremium) {
GoogleBillingHelper.launchPurchaseFlow(GoogleBillingHelper.PRIMARY_ID, new OnPurchaseSuccessListener() {
@Override
public void handlePurchase(final Purchase purchase, final boolean addedPremiumProduct) {
if (addedPremiumProduct) {
PreferenceUtil.setSharedPreferenceBoolean(R.string.key_internal_has_premium_pack, true);
}
GoogleBillingHelper.dispose();
int messageResource = addedPremiumProduct
? R.string.message_dialog_purchase_thanks_premium : R.string.message_dialog_purchase_thanks;
MessageDialogListener listener = new MessageDialogListener() {
private static final long serialVersionUID = 1L;
@Override
public void onDialogClick(final DialogFragment dialog) {
finish();
Application.startApplication(StandardActivity.this);
}
@Override
public void onDialogCancel(final DialogFragment dialog) {
finish();
Application.startApplication(StandardActivity.this);
}
};
DialogUtil.displayInfo(StandardActivity.this, listener, messageResource);
}
@Override
public void handleFailure() {
GoogleBillingHelper.dispose();
}
});
}
});
}
/**
* Trigger the app rating on Google Play.
*/
private void triggerRating() {
TrackingUtil.sendEvent(Category.EVENT_USER, "Rating", "Pressed icon");
DialogUtil.displayConfirmationMessage(this, new ConfirmDialogListener() {
/**
* The serial version UID.
*/
private static final long serialVersionUID = 1L;
@Override
public void onDialogPositiveClick(final DialogFragment dialog) {
TrackingUtil.sendEvent(Category.EVENT_USER, "Rating", "Go to rating");
startActivityForResult(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + getPackageName())), REQUEST_CODE_RATING);
}
@Override
public void onDialogNegativeClick(final DialogFragment dialog) {
queryRemoveRatingIcon();
}
}, R.string.button_rate, R.string.message_dialog_confirm_rate_app);
}
/**
* Query if rating icon should be removed.
*/
private void queryRemoveRatingIcon() {
DialogUtil.displayConfirmationMessage(StandardActivity.this, new ConfirmDialogListener() {
/**
* The serial version UID.
*/
private static final long serialVersionUID = 1L;
@Override
public void onDialogPositiveClick(final DialogFragment dialog) {
PreferenceUtil.setSharedPreferenceBoolean(R.string.key_show_rating_icon, false);
StandardActivity.this.invalidateOptionsMenu();
}
@Override
public void onDialogNegativeClick(final DialogFragment dialog) {
// do nothing
}
}, R.string.button_remove, R.string.message_dialog_confirm_rate_icon);
}
// OVERRIDABLE
@Override
protected void onActivityResult(final int requestCode, final int resultCode, @Nullable final Intent data) {
if (requestCode == REQUEST_CODE_UNLOCKER && resultCode == RESULT_OK && data != null) {
String responseKey = data.getStringExtra(STRING_RESULT_RESPONSE_KEY);
String expectedResponseKey = EncryptionUtil.createHash(mRandomAuthorizationString + getString(R.string.private_unlock_key));
if (expectedResponseKey != null && expectedResponseKey.equals(responseKey)) {
updateUnlockerAppStatus(true);
if (mIsCreationFailed) {
finish();
startActivity(getIntent());
}
}
else {
updateUnlockerAppStatus(false);
checkPremiumPackAfterAuthorizationFailure();
}
}
else if (requestCode == REQUEST_CODE_RATING) {
queryRemoveRatingIcon();
}
else {
GoogleBillingHelper.handleActivityResult(requestCode, resultCode, data);
updateUnlockerAppStatus(false);
checkPremiumPackAfterAuthorizationFailure();
super.onActivityResult(requestCode, resultCode, data);
}
}
/**
* Get the array of required permissions.
*
* @return The array of required permissions.
*/
// OVERRIDABLE
protected String[] getRequiredPermissions() {
return new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE};
}
/**
* Get the message displayed when asking for permission.
*
* @return The resource id of the message.
*/
// OVERRIDABLE
protected int getPermissionInfoResource() {
return R.string.message_dialog_confirm_need_read_permission;
}
/**
* Check which required permissions are missing.
*
* @return The list of missing required permissions.
*/
private String[] checkRequiredPermissions() {
List<String> missingPermissions = new ArrayList<>();
for (String permission : getRequiredPermissions()) {
if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
missingPermissions.add(permission);
}
}
return missingPermissions.toArray(new String[missingPermissions.size()]);
}
// OVERRIDABLE
@Override
public void onRequestPermissionsResult(final int requestCode, @NonNull final String[] permissions, @NonNull final int[] grantResults) {
if (requestCode == REQUEST_CODE_PERMISSION) {
// If request is cancelled, the result arrays are empty.
if (grantResults.length == 0 || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
finish();
}
}
}
/**
* Factory method to retrieve the resource id of the help page to be shown.
*
* @return the resource id of the help page.
*/
protected abstract int getHelpResource();
/**
* Utility method - here it is possible to place code to be tested on startup.
*/
private void test() {
}
}