/*
 * 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.command.tool;

import com.fastasyncworldedit.core.configuration.Caption;
import com.sk89q.worldedit.LocalConfiguration;
import com.sk89q.worldedit.LocalSession;
import com.sk89q.worldedit.entity.Player;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extension.platform.permission.ActorSelectorLimits;
import com.sk89q.worldedit.function.mask.Mask;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.RegionSelector;
import com.sk89q.worldedit.util.Location;

/**
 * A wand that can be used at a distance.
 */
public class DistanceWand extends BrushTool implements DoubleActionTraceTool {

    public DistanceWand() {
        super("worldedit.selection.pos");
    }

    @Override
    public boolean actSecondary(Platform server, LocalConfiguration config, Player player, LocalSession session) {
        Location target = getTarget(player);
        if (target == null) {
            return true;
        }

        RegionSelector selector = session.getRegionSelector(player.getWorld());
        BlockVector3 blockPoint = target.toVector().toBlockPoint();
        if (selector.selectPrimary(blockPoint, ActorSelectorLimits.forActor(player))) {
            selector.explainPrimarySelection(player, session, blockPoint);
        }
        return true;
    }

    @Override
    public boolean actPrimary(Platform server, LocalConfiguration config, Player player, LocalSession session) {
        Location target = getTarget(player);
        if (target == null) {
            return true;
        }

        RegionSelector selector = session.getRegionSelector(player.getWorld());
        BlockVector3 blockPoint = target.toVector().toBlockPoint();
        if (selector.selectSecondary(blockPoint, ActorSelectorLimits.forActor(player))) {
            selector.explainSecondarySelection(player, session, blockPoint);
        }
        return true;
    }

    private Location getTarget(Player player) {
        Location target;
        Mask mask = getTraceMask();
        if (this.range > -1) {
            target = player.getBlockTrace(getRange(), true, mask);
        } else {
            target = player.getBlockTrace(MAX_RANGE, false, mask);
        }

        if (target == null) {
            player.print(Caption.of("worldedit.tool.no-block"));
            return null;
        }

        return target;
    }

}
