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package se.leap.bitmaskclient;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.annotation.IntDef;
import android.support.annotation.Nullable;
import android.util.Log;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import de.blinkt.openvpn.core.VpnStatus;
import se.leap.bitmaskclient.userstatus.User;
/**
* Activity shown at startup. Evaluates if App is started for the first time or has been upgraded
* and acts and calls another activity accordingly.
*
*/
public class StartActivity extends Activity {
public static final String TAG = Dashboard.class.getSimpleName();
@Retention(RetentionPolicy.SOURCE)
@IntDef({FIRST, NORMAL, UPGRADE, DOWNGRADE})
private @interface StartupMode {}
private static final int FIRST = 0;
private static final int NORMAL = 1;
private static final int UPGRADE = 2;
private static final int DOWNGRADE = 3;
private int versionCode;
private int previousVersionCode;
private SharedPreferences preferences;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
preferences = getSharedPreferences(Constants.SHARED_PREFERENCES, MODE_PRIVATE);
Log.d(TAG, "Started");
switch (checkAppStart()) {
case NORMAL:
break;
case FIRST:
// TODO start ProfileCreation & replace below code
break;
case UPGRADE:
executeUpgrade();
// TODO show donation dialog
break;
case DOWNGRADE:
// TODO think how and why this should happen and what todo
break;
}
// initialize app necessities
ProviderAPICommand.initialize(this);
VpnStatus.initLogCache(getApplicationContext().getCacheDir());
User.init(getString(R.string.default_username));
// go to Dashboard
Intent intent = new Intent(this, Dashboard.class);
startActivity(intent);
}
/**
* check if normal start, first run, up or downgrade
* @return @StartupMode
*/
@StartupMode
private int checkAppStart() {
try {
versionCode = getPackageManager().getPackageInfo(getPackageName(), 0).versionCode;
previousVersionCode = preferences.getInt(Constants.PREFERENCES_APP_VERSION, -1);
// versions do match -> normal start
if (versionCode == previousVersionCode) {
Log.d(TAG, "App start was: NORMAL START");
return NORMAL;
}
// no previous app version -> first start
if (previousVersionCode == -1 ) {
Log.d(TAG, "FIRST START");
return FIRST;
}
// version has increased -> upgrade
if (versionCode > previousVersionCode) {
Log.d(TAG, "UPGRADE");
return UPGRADE;
}
// version has decreased -> downgrade
if (versionCode < previousVersionCode) {
Log.d(TAG, "DOWNGRADE");
return DOWNGRADE;
}
} catch (PackageManager.NameNotFoundException e) {
Log.d(TAG, "Splash screen didn't find any " + getPackageName() + " package");
}
return NORMAL;
}
/**
* execute necessary upgrades for version change
*/
private void executeUpgrade() {
if (hasNewFeature(FeatureVersionCode.MULTIPLE_PROFILES)) {
// TODO prepare usage of multiple profiles
}
// ensure all upgrades have passed before storing new information
preferences.edit().putInt(Constants.PREFERENCES_APP_VERSION, versionCode).apply();
}
/**
* check if an upgrade passed or moved to given milestone
* @param featureVersionCode Version code of the Milestone FeatureVersionCode.MILE_STONE
* @return true if milestone is reached - false otherwise
*/
private boolean hasNewFeature(int featureVersionCode) {
return previousVersionCode < featureVersionCode && versionCode >= featureVersionCode;
}
}
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