package org.briarproject.android;

import static android.view.Gravity.CENTER;
import static android.view.WindowManager.LayoutParams.FLAG_SECURE;
import static java.util.logging.Level.INFO;
import static org.briarproject.android.TestingConstants.DEFAULT_LOG_LEVEL;
import static org.briarproject.android.TestingConstants.PREVENT_SCREENSHOTS;
import static org.briarproject.android.util.CommonLayoutParams.MATCH_MATCH;

import java.io.File;
import java.util.logging.Logger;

import org.briarproject.R;
import org.briarproject.android.util.LayoutUtils;
import org.briarproject.api.db.DatabaseConfig;

import roboguice.RoboGuice;
import roboguice.activity.RoboSplashActivity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.LinearLayout;

import com.google.inject.Injector;

public class SplashScreenActivity extends RoboSplashActivity {

	private static final Logger LOG =
			Logger.getLogger(SplashScreenActivity.class.getName());

	// This build expires on 14 November 2014
	private static final long EXPIRY_DATE = 1415923200 * 1000L;

	private long now = System.currentTimeMillis();

	public SplashScreenActivity() {
		Logger.getLogger("").setLevel(DEFAULT_LOG_LEVEL);
		minDisplayMs = 500;
	}

	@Override
	public void onCreate(Bundle state) {
		super.onCreate(state);

		if(PREVENT_SCREENSHOTS) getWindow().addFlags(FLAG_SECURE);

		LinearLayout layout = new LinearLayout(this);
		layout.setLayoutParams(MATCH_MATCH);
		layout.setGravity(CENTER);
		layout.setBackgroundColor(Color.WHITE);

		int pad = LayoutUtils.getLargeItemPadding(this);

		ImageView logo = new ImageView(this);
		logo.setPadding(pad, pad, pad, pad);
		logo.setImageResource(R.drawable.briar_logo_large);
		layout.addView(logo);

		setContentView(layout);
	}

	@Override
	protected void startNextActivity() {
		long duration = System.currentTimeMillis() - now;
		if(LOG.isLoggable(INFO))
			LOG.info("Guice startup took " + duration + " ms");
		if(System.currentTimeMillis() >= EXPIRY_DATE) {
			LOG.info("Expired");
			startActivity(new Intent(this, ExpiredActivity.class));
		} else {
			SharedPreferences prefs = getSharedPreferences("db", MODE_PRIVATE);
			String hex = prefs.getString("key", null);
			Injector i = RoboGuice.getBaseApplicationInjector(getApplication());
			DatabaseConfig databaseConfig = i.getInstance(DatabaseConfig.class);
			if(hex != null && databaseConfig.databaseExists()) {
				startActivity(new Intent(this, DashboardActivity.class));
			} else {
				prefs.edit().clear().commit();
				delete(databaseConfig.getDatabaseDirectory());
				startActivity(new Intent(this, SetupActivity.class));
			}
		}
	}

	private void delete(File f) {
		if(f.isFile()) f.delete();
		else if(f.isDirectory()) for(File child : f.listFiles()) delete(child);
	}
}