/*
 * WorldEdit, a Minecraft world manipulation toolkit
 * Copyright (C) sk89q <http://www.sk89q.com>
 * Copyright (C) WorldEdit team and contributors
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package com.sk89q.worldedit.extent.clipboard.io.legacycompat;

import com.sk89q.jnbt.ByteTag;
import com.sk89q.jnbt.Tag;
import com.sk89q.worldedit.registry.state.IntegerProperty;
import com.sk89q.worldedit.registry.state.Property;
import com.sk89q.worldedit.world.block.BlockStateHolder;
import com.sk89q.worldedit.world.block.BlockTypes;

import java.util.Map;

public class NoteBlockCompatibilityHandler implements NBTCompatibilityHandler {

    private static final IntegerProperty NoteProperty;

    static {
        IntegerProperty temp;
        try {
            temp = (IntegerProperty) (Property<?>) BlockTypes.NOTE_BLOCK.getProperty("note");
        } catch (NullPointerException | IllegalArgumentException | ClassCastException e) {
            temp = null;
        }
        NoteProperty = temp;
    }

    @Override
    public <B extends BlockStateHolder<B>> boolean isAffectedBlock(B block) {
        return NoteProperty != null && block.getBlockType() == BlockTypes.NOTE_BLOCK;
    }

    @Override
    public <B extends BlockStateHolder<B>> BlockStateHolder<?> updateNBT(B block, Map<String, Tag> values) {
        // note that instrument was not stored (in state or nbt) previously.
        // it will be updated to the block below when it gets set into the world for the first time
        Tag noteTag = values.get("note");
        if (noteTag instanceof ByteTag) {
            Byte note = ((ByteTag) noteTag).getValue();
            if (note != null) {
                values.clear();
                return block.with(NoteProperty, (int) note).toImmutableState();
            }
        }
        return block;
    }

}
