/*

 * Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game

 * Copyright (c) 2011-2012 Richard Deurwaarder <xeli@xelification.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 */

package org.hedgewars.hedgeroid;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import org.hedgewars.hedgeroid.Datastructures.FrontendDataUtils;

import org.hedgewars.hedgeroid.Datastructures.Team;

import org.hedgewars.hedgeroid.Datastructures.TeamInGame;

import org.hedgewars.hedgeroid.Datastructures.TeamIngameAttributes;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.ContextMenu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.AdapterView;

import android.widget.AdapterView.AdapterContextMenuInfo;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ImageButton;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import android.widget.SimpleAdapter.ViewBinder;

import android.widget.TextView;

public class TeamSelectionActivity extends Activity implements Runnable{

	private static final int ACTIVITY_TEAMCREATION = 0;

	public static volatile List<TeamInGame> activityParams;

	public static volatile List<TeamInGame> activityReturn;

	private ImageButton addTeam;

	private ListView availableTeams, selectedTeams;

	private List<HashMap<String, Object>> availableTeamsList, selectedTeamsList;

	private TextView txtInfo;

	public void onCreate(Bundle savedInstanceState){

		super.onCreate(savedInstanceState);

		setContentView(R.layout.team_selector);

		addTeam = (ImageButton) findViewById(R.id.btnAdd);

		txtInfo = (TextView) findViewById(R.id.txtInfo);

		selectedTeams = (ListView) findViewById(R.id.selectedTeams);

		availableTeams = (ListView) findViewById(R.id.availableTeams);

		addTeam.setOnClickListener(addTeamClicker);

		availableTeamsList = new ArrayList<HashMap<String, Object>>();

		SimpleAdapter adapter = new SimpleAdapter(this, availableTeamsList, R.layout.team_selection_entry_simple, new String[]{"txt", "img"}, new int[]{R.id.txtName, R.id.imgDifficulty});

		availableTeams.setAdapter(adapter);

		availableTeams.setOnItemClickListener(availableClicker);

		registerForContextMenu(availableTeams);

		selectedTeamsList = new ArrayList<HashMap<String, Object>>();

		adapter = new SimpleAdapter(this, selectedTeamsList, R.layout.team_selection_entry, new String[]{"txt", "img", "color", "count"}, new int[]{R.id.txtName, R.id.imgDifficulty, R.id.teamColor, R.id.teamCount});

		adapter.setViewBinder(viewBinder);

		selectedTeams.setAdapter(adapter);

		selectedTeams.setOnItemClickListener(selectedClicker);

		txtInfo.setText(String.format(getResources().getString(R.string.teams_info_template), selectedTeams.getChildCount()));

		new Thread(this).start();//load the teams from xml async

	}

	public void run(){

		List<Team> teams = FrontendDataUtils.getTeams(this);

		List<TeamInGame> existingTeams = activityParams;

		final List<TeamInGame> newSelectedList = new ArrayList<TeamInGame>();

		final List<Team> newAvailableList = new ArrayList<Team>();

		for(Team team : teams){

			boolean added = false;

			for(TeamInGame existingTeam : existingTeams){

				if(team.name.equals(existingTeam.team.name)){ // add to available or add to selected

					newSelectedList.add(new TeamInGame(team, existingTeam.ingameAttribs));

					added = true;

					break;

				}

			}

			if(!added) newAvailableList.add(team);

		}

		this.runOnUiThread(new Runnable(){

			public void run() {

				availableTeamsList.clear();

				selectedTeamsList.clear();

				for(TeamInGame t : newSelectedList) {

					selectedTeamsList.add(toMap(t));

				}

				for(Team t : newAvailableList) {

					availableTeamsList.add(toMap(t));

				}

				((SimpleAdapter)selectedTeams.getAdapter()).notifyDataSetChanged();

				((SimpleAdapter)availableTeams.getAdapter()).notifyDataSetChanged();		

			}

		});

	}

	private ViewBinder viewBinder = new ViewBinder(){

		public boolean setViewValue(View view, Object data,	String textRepresentation) {

			switch(view.getId()){

			case R.id.teamColor:

				setTeamColor(view, (Integer)data);

				return true;

			case R.id.teamCount:

				((ImageView)view).getDrawable().setLevel((Integer)data);

				return true;

			default:

				return false;

			}

		}

	};

	public void onActivityResult(int requestCode, int resultCode, Intent data){

		if(requestCode == ACTIVITY_TEAMCREATION){

			if(resultCode == Activity.RESULT_OK){

				updateListViews();

			}

		}else{

			super.onActivityResult(requestCode, resultCode, data);

		}

	}

	/*

	 * Updates the list view when TeamCreationActivity is shutdown and the user returns to this point

	 */

	private void updateListViews(){

		List<Team> teams = FrontendDataUtils.getTeams(this);

		availableTeamsList.clear();

		for(Team team : teams) {

			availableTeamsList.add(toMap(team));

		}

		ArrayList<HashMap<String, Object>> toBeRemoved = new ArrayList<HashMap<String, Object>>();

		ArrayList<HashMap<String, Object>> toBeRemovedFromSelected = new ArrayList<HashMap<String, Object>>();

		for(HashMap<String, Object> hashmap : selectedTeamsList){

			String name = (String)hashmap.get("txt");

			boolean exists = false;

			for(HashMap<String, Object> hash : availableTeamsList){

				if(name.equals((String)hash.get("txt"))){

					toBeRemoved.add(hash);

					exists = true;

					break;

				}

			}

			if(!exists) {

				toBeRemovedFromSelected.add(hashmap);

			}

		}

		for(HashMap<String, Object> hash: toBeRemoved) availableTeamsList.remove(hash);

		for(HashMap<String, Object> hash: toBeRemovedFromSelected) selectedTeamsList.remove(hash);

		((SimpleAdapter)selectedTeams.getAdapter()).notifyDataSetChanged();

		((SimpleAdapter)availableTeams.getAdapter()).notifyDataSetChanged();

	}

	private void setTeamColor(View iv, int colorIndex){

		iv.setBackgroundColor(0xFF000000 + TeamIngameAttributes.TEAM_COLORS[colorIndex]);

	}

	public void onBackPressed(){

		returnTeams();

		super.onBackPressed();

	}

	private OnClickListener addTeamClicker = new OnClickListener(){

		public void onClick(View v) {

			startActivityForResult(new Intent(TeamSelectionActivity.this, TeamCreatorActivity.class), ACTIVITY_TEAMCREATION);

		}

	};

	private OnItemClickListener availableClicker = new OnItemClickListener(){

		public void onItemClick(AdapterView<?> arg0, View arg1, int position,long arg3) {

			selectAvailableTeamsItem(position);

		}

	};

	private OnItemClickListener selectedClicker = new OnItemClickListener(){

		public void onItemClick(AdapterView<?> arg0, View arg1, int position,long arg3) {

			availableTeamsList.add((HashMap<String, Object>) selectedTeamsList.get(position));

			selectedTeamsList.remove(position);

			((SimpleAdapter)availableTeams.getAdapter()).notifyDataSetChanged();

			((SimpleAdapter)selectedTeams.getAdapter()).notifyDataSetChanged();

			txtInfo.setText(String.format(getResources().getString(R.string.teams_info_template), selectedTeamsList.size()));

		}

	};

	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuinfo){

		menu.add(ContextMenu.NONE, 0, ContextMenu.NONE, R.string.select);

		menu.add(ContextMenu.NONE, 2, ContextMenu.NONE, R.string.edit);

		menu.add(ContextMenu.NONE, 1, ContextMenu.NONE, R.string.delete);

	}

	public boolean onContextItemSelected(MenuItem item){

		AdapterView.AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item.getMenuInfo();

		int position = menuInfo.position;

		Team team = (Team)availableTeamsList.get(position).get("team");

		switch(item.getItemId()){

		case 0://select

			selectAvailableTeamsItem(position);

			return true;

		case 1://delete

			Team.getTeamfileByName(getApplicationContext(), team.name).delete();

			availableTeamsList.remove(position);

			((SimpleAdapter)availableTeams.getAdapter()).notifyDataSetChanged();

			return true;

		case 2://edit

			Intent i = new Intent(TeamSelectionActivity.this, TeamCreatorActivity.class);

			i.putExtra(TeamCreatorActivity.PARAMETER_EXISTING_TEAMNAME, team.name);

			startActivityForResult(i, ACTIVITY_TEAMCREATION);

			return true;

		}

		return false;

	}

	private void selectAvailableTeamsItem(int position){

		HashMap<String, Object> hash = (HashMap<String, Object>) availableTeamsList.get(position);

		int[] illegalcolors = new int[selectedTeamsList.size()];

		for(int i = 0; i < selectedTeamsList.size(); i++){

			illegalcolors[i] = (Integer)selectedTeamsList.get(i).get("color");

		}

		hash.put("color", TeamIngameAttributes.randomColorIndex(illegalcolors));

		hash.put("count", TeamIngameAttributes.DEFAULT_HOG_COUNT);

		selectedTeamsList.add(hash);

		availableTeamsList.remove(position);

		((SimpleAdapter)availableTeams.getAdapter()).notifyDataSetChanged();

		((SimpleAdapter)selectedTeams.getAdapter()).notifyDataSetChanged();

		txtInfo.setText(String.format(getResources().getString(R.string.teams_info_template), selectedTeamsList.size()));

	}

	private void returnTeams() {

		List<TeamInGame> result = new ArrayList<TeamInGame>();

		for(HashMap<String, Object> item : selectedTeamsList) {

			result.add(new TeamInGame((Team)item.get("team"), new TeamIngameAttributes("Player", (Integer)item.get("color"), (Integer)item.get("count"), false)));

		}

		activityReturn = result;

		setResult(Activity.RESULT_OK);

	}

	private static final int[] botlevelDrawables = new int[] {

		R.drawable.human, R.drawable.bot5, R.drawable.bot4, R.drawable.bot3, R.drawable.bot2, R.drawable.bot1

	};

	private static HashMap<String, Object> toMap(Team t) {

		HashMap<String, Object> map = new HashMap<String, Object>();

		map.put("team", t);

		map.put("txt", t.name);

		int botlevel = t.hogs.get(0).level;

		if(botlevel<0 || botlevel>=botlevelDrawables.length) {

			map.put("img", R.drawable.bot1);

		} else {

			map.put("img", botlevelDrawables[botlevel]);

		}	

		return map;

	}

	private static HashMap<String, Object> toMap(TeamInGame t) {

		HashMap<String, Object> map = toMap(t.team);

		map.put("color", t.ingameAttribs.colorIndex);

		map.put("count", t.ingameAttribs.hogCount);

		return map;

	}

}