package net.dipselmedia.WorldProtect;

import java.util.LinkedList;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.BlockState;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.event.block.BlockPlaceEvent;

public class BlockListener implements Listener {

    /** Main instance */
    private Main plugin;
    /** LinkedList that saves every block placed by the user */
    private LinkedList<BlockState> placedBlocks;

    /**
     * Simple constructor
     * @param plugin Instance of main class
     */
    public BlockListener (Main plugin){
        this.plugin = plugin;
        Bukkit.getServer().getPluginManager().registerEvents(this, plugin);
        // Create the list
        placedBlocks = new LinkedList<BlockState>();
    }

    /**
     * Called when a player places a block
     * @param e The event
     */
    @EventHandler
    public void onBlockPlace(BlockPlaceEvent e) {
        // Apply the placed block to the list
        placedBlocks.add(e.getBlock().getState());
    }

    /**
     * Called when a block is being broken
     * @param e The event
     */
    @EventHandler
    public void onBlockBreak(BlockBreakEvent e) {
        // Check whether protection is on or off
        if(plugin.getState()) {
            Player p = e.getPlayer();
            // Get the broken block
            BlockState  bs = e.getBlock().getState();

            // Check if the list contains the block
            // (i.e. the block has been paced by the user)
            if(placedBlocks.contains(bs)){
                placedBlocks.remove(bs);
            } else {
                // Get the destroyed block's material
                Material oldMaterial = bs.getBlock().getType();
                // Send the user a message
                p.sendMessage(ChatColor.GOLD
                        + "Sorry, you aren't allowed to destroy this "
                        + ChatColor.YELLOW
                        + oldMaterial.toString()
                        + ChatColor.GOLD
                        + " block!");
                // Create a new Location where the old block was
                int x = bs.getX();
                int y = bs.getY();
                int z = bs.getZ();
                World world = bs.getWorld();
                Location loc = new Location(world, x, y, z);


                // Get the new block that is at this Location
                // (should be air, as this block has just been broken)
                bs = loc.getBlock().getState();

                // Print some debug info to server console
                System.out.println("[WorldProtect] Material before: " + bs.getType().toString());

                // Set the block's Material
                bs.setType(oldMaterial);

                // Print some debug info to server console
                System.out.println("[WorldProtect] Material afterwards: " + bs.getType().toString());
            }
        }
    }

}