/* SPDX-FileCopyrightText: 2026 Project Tick
 * SPDX-FileContributor: Project Tick
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 *   MeshMC - A Custom Launcher for Minecraft
 *   Copyright (C) 2026 Project Tick
 *
 *   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 3 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.
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole
 *   combination.
 *
 *   As a special exception, the copyright holders of this library give
 *   you permission to link this library with independent modules to
 *   produce an executable, regardless of the license terms of these
 *   independent modules, and to copy and distribute the resulting
 *   executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the
 *   license of that module. An independent module is a module which is
 *   not derived from or based on this library. If you modify this
 *   library, you may extend this exception to your version of the
 *   library, but you are not obliged to do so. If you do not wish to do
 *   so, delete this exception statement from your version.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 *  This file incorporates work covered by the following copyright and
 *  permission notice:
 *
 * Copyright 2012-2021 MultiMC Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.projecttick;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class ParamBucket
{
    public void add(String key, String value)
    {
        List<String> coll = null;
        if(!m_params.containsKey(key))
        {
            coll = new ArrayList<String>();
            m_params.put(key, coll);
        }
        else
        {
            coll = m_params.get(key);
        }
        coll.add(value);
    }

    public List<String> all(String key) throws NotFoundException
    {
        if(!m_params.containsKey(key))
            throw new NotFoundException();
        return m_params.get(key);
    }

    public List<String> allSafe(String key, List<String> def)
    {
        if(!m_params.containsKey(key) || m_params.get(key).size() < 1)
        {
            return def;
        }
        return m_params.get(key);
    }

    public List<String> allSafe(String key)
    {
        return allSafe(key, new ArrayList<String>());
    }

    public String first(String key) throws NotFoundException
    {
        List<String> list = all(key);
        if(list.size() < 1)
        {
            throw new NotFoundException();
        }
        return list.get(0);
    }

    public String firstSafe(String key, String def)
    {
        if(!m_params.containsKey(key) || m_params.get(key).size() < 1)
        {
            return def;
        }
        return m_params.get(key).get(0);
    }

    public String firstSafe(String key)
    {
        return firstSafe(key, "");
    }

    private HashMap<String, List<String>> m_params = new HashMap<String, List<String>>();
}