package jarvisd.railcounter;

import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.block.Sign;
import org.bukkit.event.block.BlockListener;
import org.bukkit.event.block.BlockRedstoneEvent;

public class RCBlockRedstoneListener extends BlockListener {
    public static RailCounter plugin;
    public RCBlockRedstoneListener(RailCounter instance)    {
        plugin = instance;
    }

    public void onBlockRedstoneChange(BlockRedstoneEvent event) {
        Block block = event.getBlock();
        if (event.getOldCurrent() == 0) {
                World world = block.getWorld();
                int X = block.getX();
                int Z = block.getZ();
                int Y = block.getY();
                //lets look for a sign.
                IncreaseSignCount(world,X-1,Y,Z);
                IncreaseSignCount(world,X+1,Y,Z);
                IncreaseSignCount(world,X,Y,Z-1);
                IncreaseSignCount(world,X,Y,Z+1);
        }
    }

    public void IncreaseSignCount(World world, int x, int y, int z) {
        Block block = world.getBlockAt(x,y,z);
        if (block.getTypeId() == 63 || block.getTypeId() == 68) {
            Sign sign = (Sign)block.getState();
            String[] lines = sign.getLines();
             if (lines[0].equalsIgnoreCase("~Counter~")) {
                int count = 0;
                if (!lines[2].isEmpty() || lines[2] != null) {
                    try {
                        count = Integer.parseInt(lines[2]);
                    } catch(NumberFormatException e) {
                        System.out.println("Failed to parse sign, invaild number");
                        count = 0;
                    }
                 }
                count++;
                sign.setLine(2,String.valueOf(count));
                try {
                    sign.update();
                } catch(StackOverflowError e) {
                    System.out.println("fail");
                }
                }
            }
        }


}