/*

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

 * 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.Collections;

import java.util.List;

import java.util.Map;

import org.hedgewars.hedgeroid.R;

import org.hedgewars.hedgeroid.Datastructures.FrontendDataUtils;

import org.hedgewars.hedgeroid.Datastructures.MapRecipe;

import org.hedgewars.hedgeroid.Datastructures.Scheme;

import org.hedgewars.hedgeroid.Datastructures.Schemes;

import org.hedgewars.hedgeroid.Datastructures.TeamInGame;

import org.hedgewars.hedgeroid.Datastructures.Weaponset;

import org.hedgewars.hedgeroid.Datastructures.Weaponsets;

import org.hedgewars.hedgeroid.util.FileUtils;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemSelectedListener;

import android.widget.ArrayAdapter;

import android.widget.ImageView;

import android.widget.Spinner;

import android.widget.Toast;

public class SettingsFragment extends Fragment {

    private Spinner styleSpinner, schemeSpinner, weaponsetSpinner, themeSpinner;

    private ImageView themeIcon;

    private List<String> styles;

    private List<Scheme> schemes;

    private List<Weaponset> weaponsets;

    private List<String> themes;

    private RoomStateManager stateManager;

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        View v = inflater.inflate(R.layout.fragment_settings, container, false);

        themeIcon = (ImageView)v.findViewById(R.id.imgTheme);

        try {

            styles = FrontendDataUtils.getGameStyles(getActivity());

            schemes = Schemes.loadAllSchemes(getActivity());

            weaponsets = Weaponsets.loadAllWeaponsets(getActivity());

            themes = FrontendDataUtils.getThemes(getActivity());

        } catch (IOException e) {

            Toast.makeText(getActivity().getApplicationContext(), R.string.error_missing_sdcard_or_files, Toast.LENGTH_LONG).show();

            getActivity().finish();

            return null;

        }

        Collections.sort(styles, String.CASE_INSENSITIVE_ORDER);

        Collections.sort(schemes, Scheme.NAME_ORDER);

        Collections.sort(weaponsets, Weaponset.NAME_ORDER);

        Collections.sort(themes, String.CASE_INSENSITIVE_ORDER);

        styleSpinner = prepareSpinner(v, R.id.spinGameplay, styles, styleSelectedListener);

        schemeSpinner = prepareSpinner(v, R.id.spinGamescheme, Schemes.toNameList(schemes), schemeSelectedListener);

        weaponsetSpinner = prepareSpinner(v, R.id.spinweapons, Weaponsets.toNameList(weaponsets), weaponsetSelectedListener);

        themeSpinner = prepareSpinner(v, R.id.spinTheme, themes, themeSelectedListener);

        stateManager.addListener(roomStateChangeListener);

        if(stateManager.getGameStyle() != null) {

            styleSpinner.setSelection(styles.indexOf(stateManager.getGameStyle()), false);

        }

        if(stateManager.getScheme() != null) {

            schemeSpinner.setSelection(getSchemePosition(schemes, stateManager.getScheme().name), false);

        }

        if(stateManager.getWeaponset() != null) {

            weaponsetSpinner.setSelection(getWeaponsetPosition(weaponsets, stateManager.getWeaponset().name), false);

        }

        if(stateManager.getMapRecipe() != null) {

            themeSpinner.setSelection(themes.indexOf(stateManager.getMapRecipe().theme), false);

        }

        setChiefState(stateManager.getChiefStatus());

        return v;

    }

    private static Spinner prepareSpinner(View v, int id, List<String> items, OnItemSelectedListener itemSelectedListener) {

        Spinner spinner = (Spinner)v.findViewById(id);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(v.getContext(), R.layout.listview_item, items);

        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        spinner.setAdapter(adapter);

        spinner.setOnItemSelectedListener(itemSelectedListener);

        return spinner;

    }

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        try {

            stateManager = ((RoomStateManager.Provider)getActivity()).getRoomStateManager();

        } catch(ClassCastException e) {

            throw new RuntimeException("Hosting activity must implement RoomStateManager.Provider.", e);

        }

    }

    @Override

    public void onDestroy() {

        super.onDestroy();

        stateManager.removeListener(roomStateChangeListener);

    }

    private static int getSchemePosition(List<Scheme> schemes, String scheme) {

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

            if(schemes.get(i).name.equals(scheme)) {

                return i;

            }

        }

        return -1;

    }

    private static int getWeaponsetPosition(List<Weaponset> weaponsets, String weaponset) {

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

            if(weaponsets.get(i).name.equals(weaponset)) {

                return i;

            }

        }

        return -1;

    }

    private void setChiefState(boolean chiefState) {

        styleSpinner.setEnabled(chiefState);

        schemeSpinner.setEnabled(chiefState);

        weaponsetSpinner.setEnabled(chiefState);

        themeSpinner.setEnabled(chiefState);

        if(chiefState) {

            stateManager.changeGameStyle(styles.get(styleSpinner.getSelectedItemPosition()));

            stateManager.changeScheme(schemes.get(schemeSpinner.getSelectedItemPosition()));

            stateManager.changeWeaponset(weaponsets.get(weaponsetSpinner.getSelectedItemPosition()));

            stateManager.changeMapTheme(themes.get(themeSpinner.getSelectedItemPosition()));

        }

    }

    private final OnItemSelectedListener styleSelectedListener = new OnItemSelectedListener() {

        public void onItemSelected(AdapterView<?> adapter, View v, int position, long arg3) {

            stateManager.changeGameStyle(styles.get(position));

        }

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

    };

    private final OnItemSelectedListener schemeSelectedListener = new OnItemSelectedListener() {

        public void onItemSelected(AdapterView<?> adapter, View v, int position, long arg3) {

            stateManager.changeScheme(schemes.get(position));

        }

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

    };

    private final OnItemSelectedListener weaponsetSelectedListener = new OnItemSelectedListener() {

        public void onItemSelected(AdapterView<?> adapter, View v, int position, long arg3) {

            stateManager.changeWeaponset(weaponsets.get(position));

        }

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

    };

    private final OnItemSelectedListener themeSelectedListener = new OnItemSelectedListener() {

        public void onItemSelected(AdapterView<?> adapter, View v, int position, long arg3) {

            stateManager.changeMapTheme(themes.get(position));

            String theme = themes.get(position);

            try {

                File iconFile = FileUtils.getDataPathFile(getActivity(), "Themes", theme, "icon@2X.png");

                Drawable themeIconDrawable = Drawable.createFromPath(iconFile.getAbsolutePath());

                themeIcon.setImageDrawable(themeIconDrawable);

            } catch (FileNotFoundException e) {

                Log.e("SettingsFragment", "Unable to find preview for theme "+theme, e);

            }

        };

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

    };

    private final RoomStateManager.Listener roomStateChangeListener = new RoomStateManager.Listener() {

        public void onWeaponsetChanged(Weaponset weaponset) {

            weaponsetSpinner.setSelection(getWeaponsetPosition(weaponsets, weaponset.name));

        }

        public void onTeamsChanged(Map<String, TeamInGame> teams) {}

        public void onSchemeChanged(Scheme scheme) {

            schemeSpinner.setSelection(getSchemePosition(schemes, scheme.name));

        }

        public void onMapChanged(MapRecipe recipe) {

            themeSpinner.setSelection(themes.indexOf(recipe.theme));

        }

        public void onGameStyleChanged(String gameStyle) {

            styleSpinner.setSelection(styles.indexOf(gameStyle));

        }

        public void onChiefStatusChanged(boolean isChief) {

            setChiefState(isChief);

        }

    };

}