/*
 * This file is part of LanternServer, licensed under the MIT License (MIT).
 *
 * Copyright (c) LanternPowered <https://www.lanternpowered.org>
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) 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 org.lanternpowered.server.data.property.block;

import org.lanternpowered.server.data.property.common.AbstractBlockPropertyStore;
import org.lanternpowered.server.world.chunk.LanternChunk;
import org.spongepowered.api.block.BlockState;
import org.spongepowered.api.data.property.block.SkyLuminanceProperty;
import org.spongepowered.api.util.Direction;
import org.spongepowered.api.world.Chunk;
import org.spongepowered.api.world.Location;
import org.spongepowered.api.world.World;

import java.util.Optional;

import javax.annotation.Nullable;

public final class SkyLuminancePropertyStore extends AbstractBlockPropertyStore<SkyLuminanceProperty> {

    // We will be using a cache since it can only be 16 different values
    private final Optional<SkyLuminanceProperty>[] lookup = new Optional[16];

    public SkyLuminancePropertyStore() {
        for (int i = 0; i < this.lookup.length; i++) {
            this.lookup[i] = Optional.of(new SkyLuminanceProperty((float) i / (float) this.lookup.length));
        }
    }

    @Override
    protected Optional<SkyLuminanceProperty> getFor(BlockState blockState, @Nullable Location<World> location, @Nullable Direction direction) {
        if (location == null) {
            return Optional.empty();
        }
        final Optional<Chunk> chunk = location.getExtent().getChunk(location.getChunkPosition());
        return chunk.isPresent() ? this.lookup[((LanternChunk) chunk.get()).getSkyLight(
                location.getBlockX(), location.getBlockY(), location.getBlockZ())] : Optional.empty();
    }
    
}