package de.tudarmstadt.informatik.hostage.ui2.fragment;

import java.util.ArrayList;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.Switch;
import android.widget.TextView;
import de.tudarmstadt.informatik.hostage.R;
import de.tudarmstadt.informatik.hostage.commons.HelperUtils;
import de.tudarmstadt.informatik.hostage.dao.ProfileManager;
import de.tudarmstadt.informatik.hostage.model.Profile;
import de.tudarmstadt.informatik.hostage.persistence.HostageDBOpenHelper;
import de.tudarmstadt.informatik.hostage.sync.tracing.TracingSyncActivity;
import de.tudarmstadt.informatik.hostage.ui.LogFilter;
import de.tudarmstadt.informatik.hostage.ui2.activity.MainActivity;
import de.tudarmstadt.informatik.hostage.ui2.fragment.opengl.ThreatIndicatorGLRenderer;

/**
 * @author Alexander Brakowski
 * @created 13.01.14 19:06
 */

public class HomeFragment extends Fragment {
	private Switch mHomeSwitchConnection;
	private TextView mHomeTextName;
	private TextView mHomeTextSecurity;
	private TextView mHomeTextAttacks;
	private TextView mHomeTextProfile;
	private TextView mHomeTextProfileHeader;
	private ImageView mHomeProfileImage;
	private ImageView mHomeConnectionInfoButton;

	private View rootView;
	private BroadcastReceiver mReceiver;

	private CompoundButton.OnCheckedChangeListener switchChangeListener = null;

	private int defaultTextColor;
	private ProfileManager mProfileManager;

	private SharedPreferences mConnectionInfo;
	private HostageDBOpenHelper dbh;

	private static ThreatIndicatorGLRenderer.ThreatLevel THREAT_LEVEL = ThreatIndicatorGLRenderer.ThreatLevel.NO_THREAT;
	private boolean mReceiverRegistered;

	private void assignViews() {
		mHomeSwitchConnection = (Switch) rootView.findViewById(R.id.home_switch_connection);
		mHomeTextName = (TextView) rootView.findViewById(R.id.home_text_name);
		mHomeTextSecurity = (TextView) rootView.findViewById(R.id.home_text_security);
		mHomeTextAttacks = (TextView) rootView.findViewById(R.id.home_text_attacks);
		mHomeTextProfile = (TextView) rootView.findViewById(R.id.home_text_profile);
		mHomeTextProfileHeader = (TextView) rootView.findViewById(R.id.home_text_profile_header);
		mHomeProfileImage = (ImageView) rootView.findViewById(R.id.home_image_profile);
		mHomeConnectionInfoButton = (ImageView) rootView.findViewById(R.id.home_button_connection_info);
	}

	private void registerBroadcastReceiver() {
		if (!mReceiverRegistered) {
			LocalBroadcastManager.getInstance(getActivity()).registerReceiver(mReceiver, new IntentFilter(getString(R.string.broadcast)));
			this.mReceiverRegistered = true;
		}
	}

	private void unregisterBroadcastReceiver() {
		if (mReceiverRegistered) {
			LocalBroadcastManager.getInstance(getActivity()).unregisterReceiver(mReceiver);
			this.mReceiverRegistered = false;
		}
	}

	public HomeFragment() {
	}

	public void setStateNotActive(boolean initial) {
		mHomeTextName.setTextColor(getResources().getColor(R.color.light_grey));
		mHomeTextSecurity.setTextColor(getResources().getColor(R.color.light_grey));
		mHomeTextAttacks.setTextColor(getResources().getColor(R.color.light_grey));
		mHomeTextProfile.setTextColor(getResources().getColor(R.color.light_grey));
		mHomeTextProfileHeader.setTextColor(getResources().getColor(R.color.light_grey));

		if (!initial) {
			ThreatIndicatorGLRenderer.setThreatLevel(ThreatIndicatorGLRenderer.ThreatLevel.NOT_MONITORING);
		}

		mHomeSwitchConnection.setChecked(false);
	}

	public void setStateNotActive() {
		setStateNotActive(false);
	}

	public void setStateActive() {
		setStateActive(false);
	}

	public void setStateActive(boolean initial) {
		mHomeTextAttacks.setVisibility(View.VISIBLE);
		mHomeTextSecurity.setVisibility(View.VISIBLE);

		mHomeTextName.setTextColor(defaultTextColor);
		mHomeTextProfile.setTextColor(defaultTextColor);
		mHomeTextProfileHeader.setTextColor(defaultTextColor);

		if (!initial) {
			ThreatIndicatorGLRenderer.setThreatLevel(ThreatIndicatorGLRenderer.ThreatLevel.NO_THREAT);
		}

		mHomeSwitchConnection.setChecked(true);
	}

	public void setStateNotConnected() {
		mHomeTextSecurity.setVisibility(View.INVISIBLE);
		mHomeTextAttacks.setVisibility(View.INVISIBLE);
		mHomeTextProfile.setVisibility(View.INVISIBLE);
		mHomeTextProfileHeader.setVisibility(View.INVISIBLE);
		mHomeProfileImage.setVisibility(View.INVISIBLE);
		mHomeConnectionInfoButton.setVisibility(View.INVISIBLE);

		mHomeTextName.setText(R.string.not_connected);
	}

	public void setStateConnected() {
		mHomeTextProfile.setVisibility(View.VISIBLE);
		mHomeTextProfileHeader.setVisibility(View.VISIBLE);
		mHomeProfileImage.setVisibility(View.VISIBLE);
		mHomeConnectionInfoButton.setVisibility(View.VISIBLE);
	}

	public void updateUI() {
		Profile profile = mProfileManager.getCurrentActivatedProfile();
		if (profile != null) {
			mHomeTextProfile.setText(profile.mLabel);
			mHomeProfileImage.setImageBitmap(profile.getIconBitmap());
		}

		if (HelperUtils.isWifiConnected(getActivity())) {
			setStateConnected();
			mHomeTextName.setText(mConnectionInfo.getString(getString(R.string.connection_info_ssid), ""));
		}

		boolean hasActiveListeners = false;
		int totalAttacks = dbh.numBssidSeen(mConnectionInfo.getString(getString(R.string.connection_info_bssid), null));
		ThreatIndicatorGLRenderer.ThreatLevel threatLevel = ThreatIndicatorGLRenderer.ThreatLevel.NOT_MONITORING;

		if (MainActivity.getInstance().getHostageService() != null) {
			if (MainActivity.getInstance().getHostageService().hasRunningListeners()) {
				hasActiveListeners = true;

				if (MainActivity.getInstance().getHostageService().hasActiveAttacks() && totalAttacks > 0) {
					threatLevel = ThreatIndicatorGLRenderer.ThreatLevel.LIVE_THREAT;
				} else if (totalAttacks > 0) {
					threatLevel = ThreatIndicatorGLRenderer.ThreatLevel.PAST_THREAT;
				} else {
					threatLevel = ThreatIndicatorGLRenderer.ThreatLevel.NO_THREAT;
				}
			}
		}

		if (hasActiveListeners) {
			setStateActive(true);

			switch (threatLevel) {
			case NO_THREAT:
				mHomeTextAttacks.setText(R.string.zero_attacks);
				mHomeTextSecurity.setText(R.string.secure);
				mHomeTextAttacks.setTextColor(getResources().getColor(R.color.holo_dark_green));
				mHomeTextSecurity.setTextColor(getResources().getColor(R.color.holo_dark_green));
				break;
			case PAST_THREAT:
				mHomeTextAttacks.setText(totalAttacks
						+ (totalAttacks == 1 ? getResources().getString(R.string.attack) : getResources().getString(R.string.attacks))
						+ getResources().getString(R.string.recorded));
				mHomeTextSecurity.setText(R.string.insecure);
				mHomeTextAttacks.setTextColor(getResources().getColor(R.color.holo_yellow));
				mHomeTextSecurity.setTextColor(getResources().getColor(R.color.holo_yellow));
				break;
			case LIVE_THREAT:
				mHomeTextAttacks.setText(totalAttacks
						+ (totalAttacks == 1 ? getResources().getString(R.string.attack) : getResources().getString(R.string.attacks))
						+ getResources().getString(R.string.recorded));
				mHomeTextSecurity.setText(R.string.insecure);
				mHomeTextAttacks.setTextColor(getResources().getColor(R.color.holo_red));
				mHomeTextSecurity.setTextColor(getResources().getColor(R.color.holo_red));
				break;
			}

			ThreatIndicatorGLRenderer.setThreatLevel(threatLevel);
		} else {
			setStateNotActive();

			if (!HelperUtils.isWifiConnected(getActivity())) {
				setStateNotConnected();
			}
		}
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

		super.onCreateView(inflater, container, savedInstanceState);

		final Activity activity = getActivity();
		if (activity != null) {
			activity.setTitle(getResources().getString(R.string.drawer_overview));
		}

		dbh = new HostageDBOpenHelper(getActivity());

		mProfileManager = ProfileManager.getInstance();
		mConnectionInfo = getActivity().getSharedPreferences(getString(R.string.connection_info), Context.MODE_PRIVATE);

		rootView = inflater.inflate(R.layout.fragment_home, container, false);
		assignViews();

		// hook up the connection info button
		mHomeConnectionInfoButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				final FragmentManager fragmentManager = getFragmentManager();
				if (fragmentManager != null) {
					ConnectionInfoDialogFragment connectionInfoDialogFragment = new ConnectionInfoDialogFragment();
					connectionInfoDialogFragment.show(fragmentManager.beginTransaction(), connectionInfoDialogFragment.getTag());
				}
			}
		});

		defaultTextColor = mHomeTextName.getCurrentTextColor();

		setStateNotActive(true);
		setStateNotConnected();

		mReceiver = new BroadcastReceiver() {
			@SuppressLint("NewApi")
			@Override
			public void onReceive(Context context, Intent intent) {
				if (getUserVisibleHint())
					updateUI();
			}
		};
		registerBroadcastReceiver();

		updateUI();

		mHomeSwitchConnection = (Switch) rootView.findViewById(R.id.home_switch_connection);

		if (switchChangeListener == null) {
			switchChangeListener = new CompoundButton.OnCheckedChangeListener() {
				public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
					startActivity(new Intent(getActivity(), TracingSyncActivity.class));
					// if (!HelperUtils.isWifiConnected(getActivity())) {
					// new
					// AlertDialog.Builder(getActivity()).setTitle(R.string.information).setMessage(R.string.wifi_not_connected_msg)
					// .setPositiveButton(android.R.string.ok, new
					// DialogInterface.OnClickListener() {
					// public void onClick(DialogInterface dialog, int which) {
					//
					// }
					// }).setIcon(android.R.drawable.ic_dialog_info).show();
					//
					// setStateNotActive();
					// setStateNotConnected();
					// } else {
					// if (isChecked) {
					// boolean protocolActivated = false;
					// if
					// (ProfileManager.getInstance().getCurrentActivatedProfile()
					// == null) {
					// for (String protocol :
					// getResources().getStringArray(R.array.protocols)) {
					// if
					// (!MainActivity.getInstance().getHostageService().isRunning(protocol))
					// {
					// MainActivity.getInstance().getHostageService().startListener(protocol);
					// protocolActivated = true;
					// }
					// }
					// } else {
					// ProfileManager profileManager =
					// ProfileManager.getInstance();
					//
					// if (profileManager.isRandomActive()) {
					// profileManager.randomizeProtocols(profileManager.getRandomProfile());
					// }
					//
					// for (String protocol :
					// profileManager.getCurrentActivatedProfile().getActiveProtocols())
					// {
					// if (protocol.equals("GHOST"))
					// continue;
					//
					// if
					// (!MainActivity.getInstance().getHostageService().isRunning(protocol))
					// {
					// MainActivity.getInstance().getHostageService().startListener(protocol);
					// protocolActivated = true;
					// }
					// }
					//
					// Profile currentProfile =
					// profileManager.getCurrentActivatedProfile();
					//
					// if (currentProfile.mGhostActive) {
					// for (int port : currentProfile.getGhostPorts()) {
					// MainActivity.getInstance().getHostageService().startListener("GHOST",
					// port);
					// protocolActivated = true;
					// }
					// }
					// }
					//
					// if (protocolActivated) {
					// setStateActive();
					// } else {
					// new
					// AlertDialog.Builder(getActivity()).setTitle(R.string.information).setMessage(R.string.profile_no_services_msg)
					// .setPositiveButton(android.R.string.ok, new
					// DialogInterface.OnClickListener() {
					// public void onClick(DialogInterface dialog, int which) {
					//
					// }
					// }).setIcon(android.R.drawable.ic_dialog_info).show();
					//
					// setStateNotActive();
					// }
					// } else {
					// if (MainActivity.getInstance().getHostageService() !=
					// null) {
					// MainActivity.getInstance().getHostageService().stopListeners();
					// MainActivity.getInstance().stopAndUnbind();
					// }
					// setStateNotActive();
					// }
					// }
				}
			};
		}
		mHomeSwitchConnection.setOnCheckedChangeListener(switchChangeListener);

		rootView.findViewById(R.id.home_profile_details).setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				Fragment fragment = new ProfileManagerFragment();
				MainActivity.getInstance().injectFragment(fragment, false);
			}
		});

		View.OnClickListener attackClickListener = new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				String ssid = mConnectionInfo.getString(getString(R.string.connection_info_ssid), "");
				if (!ssid.isEmpty()) {
					ArrayList<String> ssids = new ArrayList<String>();
					ssids.add(ssid);

					LogFilter filter = new LogFilter();
					filter.setESSIDs(ssids);

					RecordOverviewFragment recordOverviewFragment = new RecordOverviewFragment();
					recordOverviewFragment.setFilter(filter);
					recordOverviewFragment.setGroupKey("ESSID");

					MainActivity.getInstance().injectFragment(recordOverviewFragment);
				}
			}
		};

		mHomeTextAttacks.setOnClickListener(attackClickListener);
		mHomeTextSecurity.setOnClickListener(attackClickListener);

		return rootView;
	}

	@Override
	public void onStop() {
		unregisterBroadcastReceiver();
		// mHomeSwitchConnection.setOnCheckedChangeListener(null);
		super.onStop();
	}

	@Override
	public void onStart() {
		super.onStart();
		registerBroadcastReceiver();
		updateUI();
		// mHomeSwitchConnection.setOnCheckedChangeListener(switchChangeListener);
	}

	@Override
	public void onDestroy() {
		super.onDestroy();
		unregisterBroadcastReceiver();
	}
}