package com.Acrobot.ChestShop.Listeners;

import com.Acrobot.ChestShop.Permission;
import com.Acrobot.ChestShop.Utils.uBlock;
import com.Acrobot.ChestShop.Utils.uLongName;
import com.Acrobot.ChestShop.Utils.uSign;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.block.Sign;
import org.bukkit.entity.Player;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.event.block.BlockListener;
import org.bukkit.event.block.BlockPistonExtendEvent;
import org.bukkit.event.block.BlockPistonRetractEvent;
import org.bukkit.material.PistonBaseMaterial;

/**
 * @author Acrobot
 */
public class blockBreak extends BlockListener {
    public static boolean cancellingBlockBreak(Block block, Player player) {
        if (block == null || (player != null && (Permission.has(player, Permission.ADMIN) || Permission.has(player, Permission.MOD)))) return false;
        if (uSign.isSign(block)) block.getState().update();

        Sign sign = uBlock.findRestrictedSign(block);
        if (isCorrectSign(sign, block)) return true;

        sign = uBlock.findSign(block);
        return isCorrectSign(sign, block) && playerIsNotOwner(player, sign);
    }

    public void onBlockBreak(BlockBreakEvent event) {
        if (cancellingBlockBreak(event.getBlock(), event.getPlayer())) event.setCancelled(true);
    }

    private static boolean isCorrectSign(Sign sign, Block block) {
        return sign != null && (sign.getBlock() == block || getAttachedFace(sign) == block);
    }

    private static Block getAttachedFace(Sign sign) {
        return sign.getBlock().getRelative(((org.bukkit.material.Sign) sign.getData()).getAttachedFace());
    }

    private static boolean playerIsNotOwner(Player player, Sign sign) {
        return player == null || !uLongName.stripName(player.getName()).equals(sign.getLine(0));
    }

    public void onBlockPistonExtend(BlockPistonExtendEvent event) {
        for (Block b : event.getBlocks()) {
            if (cancellingBlockBreak(b, null)) {
                event.setCancelled(true);
                return;
            }
        }
    }

    public void onBlockPistonRetract(BlockPistonRetractEvent event) {
        if (cancellingBlockBreak(getRetractBlock(event), null)) event.setCancelled(true);
    }

    private static Block getRetractBlock(BlockPistonRetractEvent event) {
        Block block = getRetractLocationBlock(event);
        return (block != null && !uSign.isSign(block) ? block : null);
    }

    //Those are fixes for CraftBukkit's piston bug, where piston appears not to be a piston.
    private static BlockFace getPistonDirection(Block block) {
        return block.getState().getData() instanceof PistonBaseMaterial ? ((PistonBaseMaterial) block.getState().getData()).getFacing() : null;
    }

    private static Block getRetractLocationBlock(BlockPistonRetractEvent event) {
        BlockFace pistonDirection = getPistonDirection(event.getBlock());
        return pistonDirection != null ? event.getBlock().getRelative((pistonDirection), 2).getLocation().getBlock() : null;
    }
}