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

import com.google.android.gms.maps.model.LatLng;

import android.annotation.SuppressLint;
import android.app.Fragment;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.style.ForegroundColorSpan;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ExpandableListView;
import android.widget.ImageButton;
import android.widget.PopupMenu;
import android.widget.PopupMenu.OnMenuItemClickListener;
import android.widget.Toast;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.Random;

import de.tudarmstadt.informatik.hostage.R;
import de.tudarmstadt.informatik.hostage.logging.Record;
import de.tudarmstadt.informatik.hostage.logging.Record.TYPE;
import de.tudarmstadt.informatik.hostage.logging.UglyDbHelper;
import de.tudarmstadt.informatik.hostage.ui.LogFilter;
import de.tudarmstadt.informatik.hostage.ui.LogFilter.SortType;
import de.tudarmstadt.informatik.hostage.ui2.adapter.RecordListAdapter;
import de.tudarmstadt.informatik.hostage.ui2.dialog.ChecklistDialog;
import de.tudarmstadt.informatik.hostage.ui2.dialog.DateTimeDialogFragment;
import de.tudarmstadt.informatik.hostage.ui2.model.ExpandableListItem;

public class RecordOverviewFragment extends Fragment implements ChecklistDialog.ChecklistDialogListener, DateTimeDialogFragment.DateTimeDialogFragmentListener {
	static final String SELECTED_KEY = "Selected";
	static final String OTHERS_KEY = "Other";

	static final String FILTER_MENU_TITLE_BSSID = "BSSID";
	static final String FILTER_MENU_TITLE_ESSID = "ESSID";
	static final String FILTER_MENU_TITLE_PROTOCOLS = "Protocols";
	static final String FILTER_MENU_TITLE_TIMESTAMP_BELOW = "To Date";
	static final String FILTER_MENU_TITLE_TIMESTAMP_ABOVE = "From Date";
	static final String FILTER_MENU_TITLE_SORTING = "Sort by";
	static final String FILTER_MENU_TITLE_REMOVE = "Reset Filter";
    static final String FILTER_MENU_TITLE_GROUP = "Group by";

    private boolean wasBelowTimePicker;

	private LogFilter filter;
	private boolean showFilterButton;

    public String groupingKey;

    private ExpandableListView expListView;

	UglyDbHelper dbh;


    public RecordOverviewFragment(){}


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
    }

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

		dbh = new UglyDbHelper(this.getActivity().getBaseContext());

	    // Get the message from the intent

        if (this.filter == null){
            Intent intent = this.getActivity().getIntent();
            LogFilter filter = intent.getParcelableExtra(LogFilter.LOG_FILTER_INTENT_KEY);

            if(filter == null){
                this.clearFilter();
            } else {
                this.filter = filter;
            }
        }

        if (this.groupingKey == null) this.groupingKey = this.groupingTitles().get(0);

	    this.setShowFilterButton(!this.filter.isNotEditable());
	    this.addRecordToDB();

		View rootView = inflater.inflate(R.layout.fragment_record_list, container, false);
		ExpandableListView mylist = (ExpandableListView) rootView.findViewById(R.id.loglistview);
		this.expListView = mylist;
		populateListViewFromDB(mylist);

		registerListClickCallback(mylist);

        ImageButton filterButton = (ImageButton) rootView.findViewById(R.id.FilterButton);
        filterButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
            	RecordOverviewFragment.this.openFilterPopupMenuOnView(v);
            }
        });
        filterButton.setVisibility(this.showFilterButton? View.VISIBLE : View.INVISIBLE);

        ImageButton sortButton = (ImageButton) rootView.findViewById(R.id.SortButton);
        sortButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Open SortMenu
                RecordOverviewFragment.this.openSortingDialog();
            }
        });

        ImageButton groupButton = (ImageButton) rootView.findViewById(R.id.GroupButton);
        groupButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Open SortMenu
                RecordOverviewFragment.this.openGroupingDialog();
            }
        });

		return rootView;
	 }



	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
		super.onCreateOptionsMenu(menu, inflater);
	}

	public boolean onFilterMenuItemSelected(MenuItem item) {
		String title = item.getTitle().toString();

		if(title.equals(FILTER_MENU_TITLE_BSSID)){
			this.openBSSIDFilterDialog();
		}
		if(title.equals(FILTER_MENU_TITLE_ESSID)){
			this.openESSIDFilterDialog();
		}
		if(title.equals(FILTER_MENU_TITLE_PROTOCOLS)){
			this.openProtocolsFilterDialog();
		}
		if(title.equals(FILTER_MENU_TITLE_SORTING)){
			this.openSortingDialog();
		}
		if(title.equals(FILTER_MENU_TITLE_REMOVE)){
			this.clearFilter();
            this.populateListViewFromDB(this.expListView);
		}
		if(title.equals(FILTER_MENU_TITLE_TIMESTAMP_BELOW)){
			this.openTimestampToFilterDialog();
		}
		if(title.equals(FILTER_MENU_TITLE_TIMESTAMP_ABOVE)){
			this.openTimestampFromFilterDialog();
		}
		return super.onOptionsItemSelected(item);
	}



	/*****************************
	 *
	 *          ListView Stuff
	 *
	 * ***************************/

	private void populateListViewFromDB(ExpandableListView mylist) {

		HashMap<String, ArrayList<ExpandableListItem>> sectionData = new HashMap<String, ArrayList<ExpandableListItem>>();

		ArrayList<Record> data = dbh.getRecordsForFilter(this.filter);

        // Adding Items to ListView
        String keys[] = new String[] { this.getString(R.string.RecordBSSID), this.getString(R.string.RecordSSID), this.getString(R.string.RecordProtocol), this.getString(R.string.RecordTimestamp)};
        int ids[] = new int[] {R.id.RecordTextFieldBSSID, R.id.RecordTextFieldSSID, R.id.RecordTextFieldProtocol, R.id.RecordTextFieldTimestamp };

        HashMap<String, Integer> mapping = new HashMap<String, Integer>();
        int i = 0;
        for(String key : keys){
            mapping.put(key, ids[i]);
            i++;
        }

        ArrayList<String>groupTitle = new ArrayList<String>();

		for (Record val : data) {
            // DO GROUPING IN HERE
			HashMap<String, String> map = new HashMap<String, String>();
			map.put(this.getString(R.string.RecordBSSID), val.getBssid());
			map.put(this.getString(R.string.RecordSSID), val.getSsid());
			map.put(this.getString(R.string.RecordProtocol), val.getProtocol());
			map.put(this.getString(R.string.RecordTimestamp),
					this.getDateAsString(val.getTimestamp()));

            ExpandableListItem item = new ExpandableListItem();
            item.setData(map);
            item.setId_Mapping(mapping);

            String groupID = this.getGroupValue(val);

            ArrayList<ExpandableListItem> items = sectionData.get(groupID);
            if (items == null) {
                items = new ArrayList<ExpandableListItem>();
                sectionData.put(groupID, items);
                groupTitle.add(groupID);
            }
			items.add(item);
		}

        Collections.sort(groupTitle, new Comparator<String>() {
            @Override
            public int compare(String s1, String s2) {
                return s1.compareToIgnoreCase(s2);
            }
        });
        RecordListAdapter adapter = new RecordListAdapter(this.getApplicationContext(), groupTitle, sectionData);

        mylist.setAdapter(adapter);
	}

	private Context getBaseContext(){
		return this.getActivity().getBaseContext();
	}

	private Context getApplicationContext(){
		return this.getActivity().getApplicationContext();
	}

	private void registerListClickCallback(ExpandableListView mylist) {

		mylist.setOnItemClickListener(new AdapterView.OnItemClickListener() {
			public void onItemClick(AdapterView<?> parent, View viewClicked,
					int position, long idInDB) {
				UglyDbHelper dbh = new UglyDbHelper(getBaseContext());
				Record rec = dbh.getRecord((int) idInDB);
				String message = createInformationStringFromRecord(rec);
				Toast.makeText(getApplicationContext(), message,
						Toast.LENGTH_LONG).show();
			}

			private String createInformationStringFromRecord(Record rec) {
				String message = "id: " + rec.getId() + "\n" + "attack_id: "
						+ rec.getAttack_id() + "\n" + "protocol: "
						+ rec.getProtocol() + "\n" + "type: " + rec.getType()
						+ "\n" + "externalIP: " + rec.getExternalIP() + "\n"
						+ "localIP: " + rec.getLocalIP() + "\n"
						+ "local port: " + rec.getLocalPort() + "\n"
						+ "remoteIP: " + rec.getRemoteIP() + "\n" + "BSSID: "
						+ rec.getBssid() + "\n" + "SSID: " + rec.getSsid()
						+ "\n" + "latitude: " + rec.getLatitude() + "\n"
						+ "longitude: " + rec.getLongitude() + "\n"
						+ "accuracy: " + rec.getAccuracy() + "\n" + "packet: "
						+ rec.getPacket() + "\n"
						+ getDateAsString(rec.getTimestamp()) + "";
				return message;
			}

		});
	}



	/*****************************
	 *
	 *          Date Transform
	 *
	 * ***************************/


	@SuppressLint("SimpleDateFormat")
	private String getDateAsString(long timeStamp) {

		try {
			DateFormat sdf = new SimpleDateFormat("H:mm  dd/MM/yyyy");
			Date netDate = (new Date(timeStamp));
			return sdf.format(netDate);
		} catch (Exception ex) {
			return "xx";
		}
	}


	/*****************************
	 *
	 *          Getter / Setter
	 *
	 * ***************************/

	public boolean isShowFilterButton() {
		return showFilterButton;
	}

	public void setShowFilterButton(boolean showFilterButton) {
		this.showFilterButton = showFilterButton;
	}




	/*****************************
	 *
	 *          Open Dialog Methods
	 *
	 * ***************************/

    private void openGroupingDialog(){
        ChecklistDialog newFragment = new ChecklistDialog(FILTER_MENU_TITLE_GROUP, this.groupingTitles(), this.selectedGroup(), false , this);
        newFragment.show(this.getActivity().getFragmentManager(), FILTER_MENU_TITLE_GROUP);
    }

	private void openBSSIDFilterDialog(){
		ChecklistDialog newFragment = new ChecklistDialog(FILTER_MENU_TITLE_BSSID,this.bssids(), this.selectedBSSIDs(), true , this);
	    newFragment.show(this.getActivity().getFragmentManager(), FILTER_MENU_TITLE_BSSID);
	}

	private void openESSIDFilterDialog(){
		ChecklistDialog newFragment = new ChecklistDialog(FILTER_MENU_TITLE_ESSID,this.essids(), this.selectedESSIDs(), true , this);
	    newFragment.show(this.getActivity().getFragmentManager(), FILTER_MENU_TITLE_ESSID);
	}

	private void openProtocolsFilterDialog(){
		ChecklistDialog newFragment = new ChecklistDialog(FILTER_MENU_TITLE_PROTOCOLS,this.protocolTitles(), this.selectedProtocols(), true , this);
	    newFragment.show(this.getActivity().getFragmentManager(), FILTER_MENU_TITLE_PROTOCOLS);
	}

	private void openTimestampFromFilterDialog(){
		this.wasBelowTimePicker = false;
		DateTimeDialogFragment newFragment = new DateTimeDialogFragment(this.getActivity());
	    newFragment.show(this.getActivity().getFragmentManager(), FILTER_MENU_TITLE_SORTING);
        if (this.filter.aboveTimestamp != Long.MIN_VALUE)newFragment.setDate(this.filter.aboveTimestamp);
	}

	private void openTimestampToFilterDialog(){
		this.wasBelowTimePicker = true;
		DateTimeDialogFragment newFragment = new DateTimeDialogFragment(this.getActivity());
	    newFragment.show(this.getActivity().getFragmentManager(), FILTER_MENU_TITLE_SORTING);
        if (this.filter.belowTimestamp != Long.MAX_VALUE) newFragment.setDate(this.filter.belowTimestamp);
    }

	private void openSortingDialog(){
		ChecklistDialog newFragment = new ChecklistDialog(FILTER_MENU_TITLE_SORTING,this.sortTypeTtiles(), this.selectedSorttype(), false , this);
	    newFragment.show(this.getActivity().getFragmentManager(), FILTER_MENU_TITLE_SORTING);
	}

    /*****************************
     *
     *          Grouping Stuff
     *
     * ***************************/

    public String getGroupValue(Record rec){
        int index = this.groupingTitles().indexOf(this.groupingKey);
        switch (index){
            case 0:
                return rec.getProtocol();
            case 1:
                return rec.getBssid();
            case 2:
                return rec.getSsid();
            default:
                return rec.getProtocol();
        }
    }

    public ArrayList<String> getGroupTitle(){
        int index = this.groupingTitles().indexOf(this.groupingKey);
        switch (index){
            case 0:
                return this.protocolTitles();
            case 1:
                return this.bssids();
            case 2:
                return this.essids();
            default:
                return this.protocolTitles();
        }
    }


	/*****************************
	 *
	 *          Filter Stuff
	 *
	 * ***************************/

	private void openFilterPopupMenuOnView(View v){
        // Open FilterMenu
        PopupMenu filterMenu = new PopupMenu(getBaseContext(), v);
		for(String title : RecordOverviewFragment.this.filterMenuTitles()){
			// Set a white Title
			SpannableString styledMenuTitle = new SpannableString(title);
				styledMenuTitle.setSpan(new ForegroundColorSpan(Color.parseColor("#FFFFFF")), 0, title.length(), 0);
				filterMenu.getMenu().add(styledMenuTitle);
		}
		filterMenu.setOnMenuItemClickListener(new OnMenuItemClickListener() {
            public boolean onMenuItemClick(MenuItem item) {
                RecordOverviewFragment.this.onFilterMenuItemSelected(item);
                return true;
            }
        });
			filterMenu.show();
	}


	private void clearFilter(){
    	if(filter == null) this.filter = new LogFilter();
    	this.filter.clear();
	}

    public ArrayList<String> groupingTitles(){
        ArrayList<String> titles = new ArrayList<String>();
        for (String groupTitle : this.getResources().getStringArray(
                R.array.Grouping)) {
            titles.add(groupTitle);
        }
        return titles;
    }
    public boolean[] selectedGroup(){
        ArrayList<String> groups = this.groupingTitles();
        boolean[] selected = new boolean[groups.size()];
        int i = 0;
        for(String group : groups){
            selected[i] =(group.equals(this.groupingKey));
            i++;
        }
        return selected;
    }

	public ArrayList<String> protocolTitles(){
		ArrayList<String> titles = new ArrayList<String>();
		for (String protocol : this.getResources().getStringArray(
				R.array.protocols)) {
			titles.add(protocol);
		}
		return titles;
	}
	public boolean[] selectedProtocols(){
		ArrayList<String> protocols = this.protocolTitles();
		boolean[] selected = new boolean[protocols.size()];

		int i = 0;
		for(String protocol : protocols){
			selected[i] =(this.filter.protocols.contains(protocol));
			i++;
		}
		return selected;
	}

	public ArrayList<String> sortTypeTtiles(){
		ArrayList<String> titles = new ArrayList<String>();
		titles.add("Time");
		titles.add("Protocol");
		titles.add("BSSID");
		titles.add("ESSID");
		//titles.add("Remote Host Name");
		//titles.add("Local Host Name");
		//titles.add("Attack ID");
		//titles.add("ID");
		return titles;
	}
	public boolean[] selectedSorttype(){
		ArrayList<String> types = this.sortTypeTtiles();
		boolean[] selected = new boolean[types.size()];
		int i = 0;
		for(String sorttype : types){
			selected[i] =(this.filter.sorttype.toString() == sorttype);
			i++;
		}
		return selected;
	}

	public ArrayList<String> bssids(){
		ArrayList<String> records = dbh.getUniqueBSSIDRecords();
		return records;
	}
	public boolean[] selectedBSSIDs(){
		ArrayList<String> bssids = this.bssids();
		boolean[] selected = new boolean[bssids.size()];

		int i = 0;
		for(String bssid : bssids){
			selected[i] =(this.filter.BSSIDs.contains(bssid));
			i++;
		}
		return selected;
	}


	public ArrayList<String> essids(){
		ArrayList<String> records = dbh.getUniqueESSIDRecords();
		return records;
	}
	public boolean[] selectedESSIDs(){
		ArrayList<String> essids = this.essids();
		boolean[] selected = new boolean[essids.size()];

		int i = 0;
		for(String essid : essids){
			selected[i] =(this.filter.ESSIDs.contains(essid));
			i++;
		}
		return selected;
	}


	private ArrayList<String> filterMenuTitles(){
		ArrayList<String> titles = new ArrayList<String>();
		titles.add(FILTER_MENU_TITLE_BSSID);
		titles.add(FILTER_MENU_TITLE_ESSID);
		titles.add(FILTER_MENU_TITLE_PROTOCOLS);
		titles.add(FILTER_MENU_TITLE_TIMESTAMP_ABOVE);
		titles.add(FILTER_MENU_TITLE_TIMESTAMP_BELOW);
        if (this.filter.isSet())titles.add(FILTER_MENU_TITLE_REMOVE);
		return titles;
	}


	/*****************************
	 *
	 *          Listener Actions
	 *
	 * ***************************/

	public void onDateTimePickerPositiveClick(DateTimeDialogFragment dialog) {
		if(this.wasBelowTimePicker){
			this.filter.setBelowTimestamp(dialog.getDate());
		} else {
			this.filter.setAboveTimestamp(dialog.getDate());
		}
		this.populateListViewFromDB(this.expListView);
	}

	public void onDateTimePickerNegativeClick(DateTimeDialogFragment dialog) {
		if(this.wasBelowTimePicker){
			this.filter.setBelowTimestamp(Long.MAX_VALUE);
		} else {
			this.filter.setAboveTimestamp(Long.MIN_VALUE);
		}
	}

	public void onDialogPositiveClick(ChecklistDialog dialog) {
		String title = dialog.getTitle();
		if(title.equals(FILTER_MENU_TITLE_BSSID)){
            ArrayList<String> titles =dialog.getSelectedItemTitles();
            if (titles.size() == this.bssids().size()){
                this.filter.setBSSIDs(new ArrayList<String>());
            } else {
                this.filter.setBSSIDs(titles);
            }
		}
		if(title.equals(FILTER_MENU_TITLE_ESSID)){
            ArrayList<String> titles =dialog.getSelectedItemTitles();
            if (titles.size() == this.essids().size()){
                this.filter.setESSIDs(new ArrayList<String>());
            } else {
                this.filter.setESSIDs(titles);
            }
		}
		if(title.equals(FILTER_MENU_TITLE_PROTOCOLS)){
            ArrayList<String> protocols = dialog.getSelectedItemTitles();
            if (protocols.size() == this.protocolTitles().size()){
                this.filter.setProtocols(new ArrayList<String>());
            } else {
			    this.filter.setProtocols(dialog.getSelectedItemTitles());
            }
		}
		if(title.equals(FILTER_MENU_TITLE_SORTING)){
			ArrayList<String> titles = dialog.getSelectedItemTitles();
			String t = titles.get(0);
			int sortType = this.sortTypeTtiles().indexOf(t);
			this.filter.setSorttype(SortType.values()[sortType]);
		}
        if (title.equals(FILTER_MENU_TITLE_GROUP)){
            ArrayList<String> titles = dialog.getSelectedItemTitles();
            this.groupingKey =  titles.get(0);
        }
		this.populateListViewFromDB(this.expListView);
	}

	public void onDialogNegativeClick(ChecklistDialog dialog) {

	}


	/*****************************
	 *
	 *          TEST
	 *
	 * ***************************/

	private void addRecordToDB() {

        if ((dbh.getRecordCount() > 0)) return;

		Calendar cal = Calendar.getInstance();

		int maxProtocolsIndex = this.getResources().getStringArray(
				R.array.protocols).length;

		Random random = new Random();

		LatLng tudarmstadtLoc = new LatLng(49.86923, 8.6632768);
		int numberofRecords = (int) (Math.random() * (50 - 10));
		for (int i = 0; i < numberofRecords; i++) {
			Record record = new Record();
            record.setId(i);
            record.setAttack_id(i);
			record.setBssid("BSSID: " + i);
			record.setSsid("SSID: w" + i);
			record.setTimestamp(cal.getTimeInMillis()
					+ ((i * 60 * 60 * 60 * 24) * 1000));

			int index = i % maxProtocolsIndex;
			String protocolName = this.getResources().getStringArray(
					R.array.protocols)[index];

			record.setProtocol(protocolName);

			record.setLocalIP("127.0.0.1");
			record.setType(TYPE.SEND);

			record.setLatitude(tudarmstadtLoc.latitude + -0.01 + 0.02 * random.nextDouble());
			record.setLongitude(tudarmstadtLoc.longitude + -0.01 + 0.02 * random.nextDouble());

			dbh.addRecord(record);
		}

        int countAllLogs = dbh.getAllRecords().size();
        int countRecords = dbh.getRecordCount();
        int countAttacks = dbh.getAttackCount();

        if ((countRecords == 0)) {
            Record rec = dbh.getRecordOfAttackId(0);
            Record rec2 = dbh.getRecord(0);


            System.out.println("" + "Could not create logs!");
        }

    }


}