/*
 * Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game
 * Copyright (c) 2011-2012 Richard Deurwaarder <xeli@xelification.com>
 * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.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; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package org.hedgewars.hedgeroid;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;

import org.hedgewars.hedgeroid.Datastructures.FrontendDataUtils;
import org.hedgewars.hedgeroid.Datastructures.Hog;
import org.hedgewars.hedgeroid.Datastructures.Team;
import org.hedgewars.hedgeroid.util.FileUtils;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.ScrollView;
import android.widget.SimpleAdapter;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.widget.TextView;
import android.widget.Toast;

/**
 * Edit or create a team. If a team should be edited, it is supplied in the extras
 * as parameter oldTeamName.
 */
public class TeamCreatorActivity extends Activity implements Runnable {
	public static final String PARAMETER_EXISTING_TEAMNAME = "existingTeamName";
	private static final String TAG = TeamCreatorActivity.class.getSimpleName();
	
	private TextView name;
	private Spinner difficulty, grave, flag, voice, fort;
	private ImageView imgFort;
	private ArrayList<ImageButton> hogDice = new ArrayList<ImageButton>();
	private ArrayList<Spinner> hogHat = new ArrayList<Spinner>();
	private ArrayList<EditText> hogName = new ArrayList<EditText>();
	private ImageButton voiceButton;
	private ScrollView scroller;
	private MediaPlayer mp = null;
	private boolean initComplete = false;
	
	private String existingTeamName = null;

	private final List<Map<String, ?>> flagsData = new ArrayList<Map<String, ?>>();
	private final List<Map<String, ?>> typesData = new ArrayList<Map<String, ?>>();
	private final List<Map<String, ?>> gravesData = new ArrayList<Map<String, ?>>();
	private final List<Map<String, ?>> hatsData = new ArrayList<Map<String, ?>>();
	private final List<String> voicesData = new ArrayList<String>();
	private final List<String> fortsData = new ArrayList<String>();

	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		initComplete = false;
		
		// Restore state and read parameters 
		if(savedInstanceState != null) {
			existingTeamName = savedInstanceState.getString(PARAMETER_EXISTING_TEAMNAME);
		} else {
			existingTeamName = getIntent().getStringExtra(PARAMETER_EXISTING_TEAMNAME);
		}
		
		// Set up view
		setContentView(R.layout.team_creation);

		name = (TextView) findViewById(R.id.txtName);
		difficulty = (Spinner) findViewById(R.id.spinType);
		grave = (Spinner) findViewById(R.id.spinGrave);
		flag = (Spinner) findViewById(R.id.spinFlag);
		voice = (Spinner) findViewById(R.id.spinVoice);
		fort = (Spinner) findViewById(R.id.spinFort);

		imgFort = (ImageView) findViewById(R.id.imgFort);

		voiceButton = (ImageButton) findViewById(R.id.btnPlay);

		scroller = (ScrollView) findViewById(R.id.scroller);

		// Wire view elements
		LinearLayout ll = (LinearLayout) findViewById(R.id.HogsContainer);
		for (int i = 0; i < ll.getChildCount(); i++) {
			RelativeLayout team_creation_entry = (RelativeLayout) ll.getChildAt(i);

			hogHat.add((Spinner) team_creation_entry
					.findViewById(R.id.spinTeam1));
			hogDice.add((ImageButton) team_creation_entry
					.findViewById(R.id.btnTeam1));
			hogName.add((EditText) team_creation_entry
					.findViewById(R.id.txtTeam1));
		}

		grave.setAdapter(createMapSpinnerAdapter(gravesData));
		flag.setAdapter(createMapSpinnerAdapter(flagsData));
		difficulty.setAdapter(createMapSpinnerAdapter(typesData));
		SpinnerAdapter hatAdapter = createMapSpinnerAdapter(hatsData);
		for (Spinner spin : hogHat) {
			spin.setAdapter(hatAdapter);
		}


		voice.setAdapter(createListSpinnerAdapter(voicesData));
		voiceButton.setOnClickListener(voiceClicker);

		fort.setAdapter(createListSpinnerAdapter(fortsData));
		fort.setOnItemSelectedListener(fortSelector);

		new Thread(this).start();
	}

	private SpinnerAdapter createMapSpinnerAdapter(List<? extends Map<String, ?>> data) {
		SimpleAdapter sa = new SimpleAdapter(this, data,
				R.layout.spinner_textimg_entry, new String[] { "txt", "img" },
				new int[] { R.id.spinner_txt, R.id.spinner_img });
		sa.setDropDownViewResource(R.layout.spinner_textimg_dropdown_entry);
		sa.setViewBinder(viewBinder);
		return sa;
	}
	
	private SpinnerAdapter createListSpinnerAdapter(List<String> data) {
		ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.listview_item, data);
		adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
		return adapter;
	}
	
	public void run(){
		try {
			final List<Map<String, ?>> gravesDataNew = FrontendDataUtils.getGraves(this);
			runOnUiThread(new Runnable(){
				public void run() {
					gravesData.addAll(gravesDataNew);
					((SimpleAdapter)grave.getAdapter()).notifyDataSetChanged();
				}
			});
			
			final List<Map<String, ?>> flagsDataNew = FrontendDataUtils.getFlags(this);
			runOnUiThread(new Runnable(){
				public void run() {
					flagsData.addAll(flagsDataNew);
					((SimpleAdapter)flag.getAdapter()).notifyDataSetChanged();
				}
			});
			
			final List<Map<String, ?>> typesDataNew = FrontendDataUtils.getTypes(this);
			runOnUiThread(new Runnable(){
				public void run() {
					typesData.addAll(typesDataNew);
					((SimpleAdapter)difficulty.getAdapter()).notifyDataSetChanged();
				}
			});
			
			final List<Map<String, ?>> hatsDataNew = FrontendDataUtils.getHats(this);
			runOnUiThread(new Runnable(){
				public void run() {
					hatsData.addAll(hatsDataNew);
					((SimpleAdapter)hogHat.get(0).getAdapter()).notifyDataSetChanged();
				}
			});
			
			final List<String> voicesDataNew = FrontendDataUtils.getVoices(this);
			runOnUiThread(new Runnable(){
				public void run() {
					voicesData.addAll(voicesDataNew);
					((ArrayAdapter<?>)voice.getAdapter()).notifyDataSetChanged();
				}
			});
			
			final List<String> fortsDataNew = FrontendDataUtils.getForts(this);
			runOnUiThread(new Runnable(){
				public void run() {
					fortsData.addAll(fortsDataNew);
					((ArrayAdapter<?>)fort.getAdapter()).notifyDataSetChanged();
				}
			});
			
			if(existingTeamName!=null) {
				final Team loadedTeam = Team.load(Team.getTeamfileByName(getApplicationContext(), existingTeamName));
				if(loadedTeam==null) {
					existingTeamName = null;
				} else {
					runOnUiThread(new Runnable(){
						public void run() {
							setTeamValues(loadedTeam);
						}
					});
				}
			}
			runOnUiThread(new Runnable(){
				public void run() {
					initComplete = true;
				}
			});
		} catch(FileNotFoundException e) {
			this.runOnUiThread(new Runnable(){
				public void run() {
					Toast.makeText(getApplicationContext(), R.string.error_missing_sdcard_or_files, Toast.LENGTH_LONG).show();
					finish();
				}
			});
		}
	}
	
	public void onDestroy() {
		super.onDestroy();
		if (mp != null) {
			mp.release();
			mp = null;
		}
	}

	@Override
	protected void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);
		outState.putString(PARAMETER_EXISTING_TEAMNAME, existingTeamName);
	}

	public void onBackPressed() {
		if(initComplete) {
			saveTeam();
		}
		setResult(RESULT_OK);
		super.onBackPressed();
	}

	private void saveTeam() {
		String teamName = name.getText().toString();
		String teamFlag = (String)((Map<String, Object>) flag.getSelectedItem()).get("txt");
		String teamFort = fort.getSelectedItem().toString();
		String teamGrave = (String)((Map<String, Object>) grave.getSelectedItem()).get("txt");
		String teamVoice = voice.getSelectedItem().toString();
		int levelInt = (Integer)((Map<String, Object>) difficulty.getSelectedItem()).get("level");
		
		List<Hog> hogs = new ArrayList<Hog>();
		for (int i = 0; i < hogName.size(); i++) {
			String name = hogName.get(i).getText().toString();
			String hat = ((Map<String, Object>) hogHat.get(i).getSelectedItem()).get("txt").toString();
			hogs.add(new Hog(name, hat, levelInt));
		}
		
		Team team = new Team(teamName, teamGrave, teamFlag, teamVoice, teamFort, hogs);
		File teamsDir = new File(getFilesDir(), Team.DIRECTORY_TEAMS);
		if (!teamsDir.exists()) teamsDir.mkdir();
		
		File newFile = Team.getTeamfileByName(this, teamName);
		File oldFile = null;
		if(existingTeamName != null) {
			oldFile = Team.getTeamfileByName(this, existingTeamName);
		}
		try {
			team.save(newFile);
			// If the team was renamed, delete the old file.
			if(oldFile != null && oldFile.isFile() && !oldFile.equals(newFile)) {
				oldFile.delete();
			}
			existingTeamName = teamName;
		} catch(IOException e) {
			Toast.makeText(getApplicationContext(), R.string.error_save_failed, Toast.LENGTH_SHORT).show();
		}
	};

	private OnItemSelectedListener fortSelector = new OnItemSelectedListener() {
		public void onItemSelected(AdapterView<?> arg0, View arg1,
				int position, long arg3) {
			String fortName = (String) arg0.getAdapter().getItem(position);
			try {
				File fortImage = FileUtils.getDataPathFile(TeamCreatorActivity.this, "Forts", fortName, "L.png");
				Drawable fortIconDrawable = Drawable.createFromPath(fortImage.getAbsolutePath());
				imgFort.setImageDrawable(fortIconDrawable);
			} catch(IOException e) {
				Log.e(TAG, "Unable to show fort image", e);
			}
			scroller.fullScroll(ScrollView.FOCUS_DOWN);// Scroll the scrollview
			// to the bottom, work
			// around for scrollview
			// invalidation (scrolls
			// back to top)
		}

		public void onNothingSelected(AdapterView<?> arg0) {
		}

	};

	private OnClickListener voiceClicker = new OnClickListener() {
		public void onClick(View v) {
			try {
				File dir = FileUtils.getDataPathFile(TeamCreatorActivity.this, "Sounds", "voices", (String)voice.getSelectedItem());
				String file = "";
				File[] dirs = dir.listFiles();
				File f = dirs[(int) Math.round(Math.random() * dirs.length)];
				if (f.getName().endsWith(".ogg"))
					file = f.getAbsolutePath();

				if (mp == null)
					mp = new MediaPlayer();
				else
					mp.reset();
				mp.setDataSource(file);
				mp.prepare();
				mp.start();
			} catch (IllegalArgumentException e) {
				Log.e(TAG, "Unable to play voice sample", e);
			} catch (IllegalStateException e) {
				Log.e(TAG, "Unable to play voice sample", e);
			} catch (IOException e) {
				Log.e(TAG, "Unable to play voice sample", e);
			}
		}
	};

	@SuppressWarnings("unchecked")
	private void setTeamValues(Team t){
		if (t == null) {
			return;
		}
		
		try {
			name.setText(t.name);
			voice.setSelection(findPosition((ArrayAdapter<String>) voice.getAdapter(), t.voice));
			fort.setSelection(findPosition((ArrayAdapter<String>) fort.getAdapter(), t.fort));
			difficulty.setSelection(findPosition(typesData, "level", Integer.valueOf(t.hogs.get(0).level)));
			grave.setSelection(findPosition(gravesData, "txt", t.grave));
			flag.setSelection(findPosition(flagsData, "txt", t.flag));
	
			for (int i = 0; i < Team.HEDGEHOGS_PER_TEAM; i++) {
				hogHat.get(i).setSelection(findPosition(hatsData, "txt", t.hogs.get(i).hat));
				hogName.get(i).setText(t.hogs.get(i).name);
			}
		} catch(NoSuchElementException e) {
			Toast.makeText(getApplicationContext(), R.string.error_team_attribute_not_found, Toast.LENGTH_LONG).show();
			finish();
		}
	}

	int findPosition(ArrayAdapter<String> adapter, String value) throws NoSuchElementException {
		int position = adapter.getPosition(value);
		if(position<0) {
			throw new NoSuchElementException();
		}
		return position;
	}
	
	int findPosition(List<? extends Map<String, ?>> data, String key, Object value) throws NoSuchElementException {
		int position = 0;
		for (Map<String, ?> map : data) {
			if (map.get(key).equals(value)) {
				return position;
			}
			position++;
		}
		throw new NoSuchElementException();
	}

	private SimpleAdapter.ViewBinder viewBinder = new SimpleAdapter.ViewBinder() {

		public boolean setViewValue(View view, Object data,
				String textRepresentation) {
			if (view instanceof ImageView && data instanceof Bitmap) {
				ImageView v = (ImageView) view;
				v.setImageBitmap((Bitmap) data);
				return true;
			} else {
				return false;
			}
		}
	};
}