/*
 * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
 * Copyright (C) 2023 ViaVersion and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.viaversion.viaversion.api.data;

public class IdentityMappings implements Mappings {

    private final int size;
    private final int mappedSize;

    public IdentityMappings(final int size, final int mappedSize) {
        this.size = size;
        this.mappedSize = mappedSize;
    }

    @Override
    public int getNewId(final int id) {
        return id >= 0 && id < size ? id : -1;
    }

    @Override
    public void setNewId(final int id, final int mappedId) {
        throw new UnsupportedOperationException();
    }

    @Override
    public int size() {
        return size;
    }

    @Override
    public int mappedSize() {
        return mappedSize;
    }

    @Override
    public Mappings inverse() {
        return new IdentityMappings(mappedSize, size);
    }
}
