package fr.tobast.bukkit.chainbrewing;

import java.util.logging.Logger;
import org.bukkit.event.Listener;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.material.Diode;
import org.bukkit.Material;
import org.bukkit.event.EventException;

import fr.tobast.bukkit.chainbrewing.BrewingStandBlock;
import fr.tobast.bukkit.chainbrewing.MiscFunc;
import fr.tobast.bukkit.chainbrewing.ScheduleWatcher;

public class PlacementListener implements Listener
{
    Logger log;
    ScheduleWatcher watcher=new ScheduleWatcher();
    public PlacementListener(Logger iLog)
    {
        log=iLog;
    }

    /// handles events to check for a brewing stand interaction
    @EventHandler(priority=EventPriority.MONITOR)
        public void onPlayerInteractEvent(PlayerInteractEvent event)
        {
            Block clicked=event.getClickedBlock();
            if(clicked.getType() == Material.BREWING_STAND) // Brewing stand
            {
                BrewingStandBlock brewingBlock=makeBrewingBlock(clicked);
                if(brewingBlock.hasRepeaters())
                    addBrewingChain(brewingBlock);
            }
        }

    private void addBrewingChain(BrewingStandBlock enterBlock)
    {

    }

    private BrewingStandBlock makeBrewingBlock(Block block)
    {
        BrewingStandBlock stand=new BrewingStandBlock();
        stand.block=block;
        for(int i=0;i<4;i++)
        {
            Block relativeBlock=block.getRelative(MiscFunc.idToFace(i));
            if(relativeBlock.getType() == Material.DIODE_BLOCK_OFF || relativeBlock.getType() == Material.DIODE_BLOCK_ON) // Is a diode
                stand.repeaters[i]=diodeRole(MiscFunc.idToFace(i), relativeBlock.getData());
        }
        return stand;
    }

    private byte diodeRole(BlockFace originFace, byte data)
    {
        BlockFace facing=getDiodeFacing(data);

        if(facing==originFace)
            return 2;
        else if(facing==MiscFunc.opposedFace(originFace))
            return 1;
        return 0;
    }

    private BlockFace getDiodeFacing(int diodeData)
    {
        int delayData = diodeData >> 2;
        int faceData = diodeData-(delayData<<2)+1;

        while(faceData>3) // bug forces that
            faceData-=4;

        return MiscFunc.idToFace(faceData);
    }
}