/*

 * 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.Datastructures;

import java.io.File;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import org.hedgewars.hedgeroid.frontlib.Flib;

import org.hedgewars.hedgeroid.frontlib.Frontlib.WeaponsetListPtr;

import android.content.Context;

public final class Weaponsets {

	private Weaponsets() {

		throw new AssertionError("This class is not meant to be instantiated");

	}

	public static File getUserWeaponsetsFile(Context c) {

		return new File(c.getFilesDir(), "weapons_user.ini");

	}

	public static File getBuiltinWeaponsetsFile(Context c) {

		return new File(c.getFilesDir(), "weapons_builtin.ini");

	}

	public static List<Weaponset> loadAllWeaponsets(Context c) throws IOException {

		List<Weaponset> result = loadBuiltinWeaponsets(c);

		result.addAll(loadUserWeaponsets(c));

		return result;

	}

	public static List<Weaponset> loadUserWeaponsets(Context c) throws IOException {

		return loadWeaponsets(c, getUserWeaponsetsFile(c));

	}

	public static List<Weaponset> loadBuiltinWeaponsets(Context c) throws IOException {

		return loadWeaponsets(c, getBuiltinWeaponsetsFile(c));

	}

	public static List<Weaponset> loadWeaponsets(Context c, File weaponsetFile) throws IOException {

		if(!weaponsetFile.isFile()) {

			// No file == no weaponsets, no error

			return new ArrayList<Weaponset>();

		}

		WeaponsetListPtr weaponsetListPtr = null;

		try {

			weaponsetListPtr = Flib.INSTANCE.flib_weaponsetlist_from_ini(weaponsetFile.getAbsolutePath());

			if(weaponsetListPtr == null) {

				throw new IOException("Unable to read weaponsets from "+weaponsetFile);

			}

			return weaponsetListPtr.deref();

		} finally {

			if(weaponsetListPtr != null) {

				Flib.INSTANCE.flib_weaponsetlist_destroy(weaponsetListPtr);

			}

		}

	}

	public static void saveUserWeaponsets(Context c, List<Weaponset> weaponsets) throws IOException {

		WeaponsetListPtr ptr = WeaponsetListPtr.createJavaOwned(weaponsets);

		Flib.INSTANCE.flib_weaponsetlist_to_ini(getUserWeaponsetsFile(c).getAbsolutePath(), ptr);

	}

	public static void deleteUserWeaponset(Context c, String setToDelete) throws IOException {

		List<Weaponset> userWeaponsets = loadUserWeaponsets(c);

		for(Iterator<Weaponset> iter = userWeaponsets.iterator(); iter.hasNext();) {

			Weaponset set = iter.next();

			if(set.name.equals(setToDelete)) {

				iter.remove();

				break;

			}

		}

		saveUserWeaponsets(c, userWeaponsets);

	}

	public static List<String> toNameList(List<Weaponset> weaponsets) {

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

		for(Weaponset weaponset : weaponsets) {

			result.add(weaponset.name);

		}

		return result;

	}

}