package de.steamwar.fightsystem.winconditions;

import de.steamwar.fightsystem.Config;
import de.steamwar.fightsystem.FightSystem;
import de.steamwar.fightsystem.fight.Fight;
import de.steamwar.fightsystem.fight.FightTeam;
import de.steamwar.fightsystem.states.FightState;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.scheduler.BukkitTask;

import java.util.Collections;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.Set;

public class WinconditionRelativePercent extends Wincondition{

    private static final Set<Material> ignoredBlocks;
    private static TeamPercent blue = null;
    private static TeamPercent red = null;

    static{
        Set<Material> ignored = new HashSet<>();
        for(String s : Config.IgnoredBlocks)
            ignored.add(Material.valueOf(s));
        ignoredBlocks = Collections.unmodifiableSet(ignored);
    }

    public WinconditionRelativePercent(){
        super(Config.RelativePercent || Config.Points, EnumSet.of(FightState.PRE_RUNNING, FightState.RUNNING));
    }

    public static TeamPercent getBlue(){
        if(blue == null)
            blue = new TeamPercent(Fight.getBlueTeam());
        return blue;
    }

    public static TeamPercent getRed(){
        if(red == null)
            red = new TeamPercent(Fight.getRedTeam());
        return red;
    }

    @Override
    public void enable() {
        getBlue();
        getRed();
    }

    @Override
    public void disable() {
        blue.task.cancel();
        red.task.cancel();
    }

    public static class TeamPercent {
        private static final World world = Bukkit.getWorlds().get(0);
        private final FightTeam team;
        private final int blockCount;
        private final BukkitTask task;
        private boolean running = false;

        private int currentBlocks;

        private TeamPercent(FightTeam team){
            this.team = team;
            this.blockCount = currentBlocks();
            this.currentBlocks = blockCount;

            task = Bukkit.getScheduler().runTaskTimerAsynchronously(FightSystem.getPlugin(), () -> {
                if(running)
                    return;
                running = true;
                currentBlocks = currentBlocks();
                checkPercentDefeat();
                running = false;
            }, 400, 400);
        }

        public double getPrintablePercent(){
            return Math.round(10000.0 * getPercent()) / 100.0;
        }

        final int getBlockCount(){
            return blockCount;
        }

        double getPercent(){
            int blocksDestroyed = blockCount - currentBlocks;
            return blocksDestroyed > 0 ? blocksDestroyed / (double) blockCount : 0;
        }

        private int currentBlocks(){
            // Entern active
            if(!Config.EnterStages.isEmpty() && Config.EnterStages.get(0) <= FightSystem.getFightTime())
                return currentBlocks;

            int blocks = 0;
            for(int x = team.getCornerX(); x < team.getCornerX() + Config.SchemsizeX; x++){
                for(int y = team.getCornerY(); y < team.getCornerY() + Config.SchemsizeY; y++){
                    for(int z = team.getCornerZ(); z < team.getCornerZ() + Config.SchemsizeZ; z++){
                        if(!ignoredBlocks.contains(world.getBlockAt(x,y,z).getType()))
                            blocks++;
                    }
                }
            }
            return blocks;
        }

        private void checkPercentDefeat(){
            if(!Config.RelativePercent)
                return;
            if(getPercent() * 100 >= Config.PercentWin){
                Bukkit.broadcastMessage(FightSystem.PREFIX + "§cDer Schiff von " + team.getColoredName() + " §cwurde zu stark beschädigt!");
                Bukkit.getScheduler().runTask(FightSystem.getPlugin(), () -> FightSystem.setSpectateState(Fight.getOpposite(team), "RelativePercent"));
            }
        }
    }
}