/*
 * 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 <http://www.gnu.org/licenses/>.
 */
package fr.neatmonster.nocheatplus.compat.bukkit;

import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.entity.Entity;
import org.bukkit.entity.EntityType;

import fr.neatmonster.nocheatplus.utilities.map.BlockCache;

public class BlockCacheBukkit extends BlockCache {

    protected World world;

    /** Temporary use. Use LocUtil.clone before passing on. Call setWorld(null) after use. */
    protected final Location useLoc = new Location(null, 0, 0, 0);

    public BlockCacheBukkit(World world) {
        setAccess(world);
    }

    @Override
    public BlockCache setAccess(World world) {
        this.world = world;
        if (world != null) {
            this.maxBlockY = world.getMaxHeight() - 1;
        }
        return this;
    }

    @Override
    public Material fetchTypeId(final int x, final int y, final int z) {
        // TODO: consider setting type id and data at once.
        return world.getBlockAt(x, y, z).getType();
    }

    @SuppressWarnings("deprecation")
    @Override
    public int fetchData(final int x, final int y, final int z) {
        // TODO: consider setting type id and data at once.
        return world.getBlockAt(x, y, z).getData();
    }

    @Override
    public double[] fetchBounds(final int x, final int y, final int z){
        // minX, minY, minZ, maxX, maxY, maxZ

        // TODO: Want to maintain a list with manual entries or at least half / full blocks ?
        // Always return full bounds, needs extra adaption to BlockProperties (!).
        return new double[]{0D, 0D, 0D, 1D, 1D, 1D};
    }

    @Override
    public boolean standsOnEntity(final Entity entity, final double minX, final double minY, final double minZ, final double maxX, final double maxY, final double maxZ){
        try{
            // TODO: Probably check other ids too before doing this ?
            for (final Entity other : entity.getNearbyEntities(2.0, 2.0, 2.0)){
                final EntityType type = other.getType();
                if (type != EntityType.BOAT){ //  && !(other instanceof Minecart)) 
                    continue; 
                }
                final double locY = entity.getLocation(useLoc).getY();
                useLoc.setWorld(null);
                if (Math.abs(locY - minY) < 0.7){
                    // TODO: A "better" estimate is possible, though some more tolerance would be good. 
                    return true; 
                }
                else return false;
            }		
        }
        catch (Throwable t){
            // Ignore exceptions (Context: DisguiseCraft).
        }
        return false;
    }

    /* (non-Javadoc)
     * @see fr.neatmonster.nocheatplus.utilities.BlockCache#cleanup()
     */
    @Override
    public void cleanup() {
        super.cleanup();
        world = null;
    }

}