/* 
    This file is a part of the SteamWar software.
    
    Copyright (C) 2020  SteamWar.de-Serverteam

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

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 de.steamwar.fightsystem.states.StateDependent;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.scheduler.BukkitTask;

import java.util.*;

public class WinconditionRelativePercent extends Wincondition implements PrintableWincondition, PercentWincondition {

    private static final World world = Bukkit.getWorlds().get(0);
    private static final Set<Material> ignoredBlocks;

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

    private final Map<FightTeam, TeamPercent> teamMap = new HashMap<>();

    public WinconditionRelativePercent(){
        super("RelativePercent", null);
        teamMap.put(Fight.getBlueTeam(), new TeamPercent(Fight.getBlueTeam()));
        teamMap.put(Fight.getRedTeam(), new TeamPercent(Fight.getRedTeam()));

        if(Config.ActiveWinconditions.contains(Winconditions.RELATIVE_PERCENT)){
            printableWinconditions.add(this);
            percentWincondition = this;
        }
    }

    @Override
    public double getPercent(FightTeam team) {
        return teamMap.get(team).getPercent();
    }

    @Override
    public String getDisplay(FightTeam team) {
        return team.getPrefix() + "Schaden: " + (Math.round(100.0 * getPercent(team)) / 100.0) + "%";
    }

    public static class TeamPercent extends StateDependent {
        private final FightTeam team;

        private int blockCount;
        private BukkitTask task;
        private int currentBlocks;

        public TeamPercent(FightTeam team){
            super(Winconditions.RELATIVE_PERCENT, FightState.Running);
            this.team = team;
            this.currentBlocks = 1;
            register();
        }

        @Override
        public void enable(){
            blockCount = currentBlocks();
            task = Bukkit.getScheduler().runTaskTimer(FightSystem.getPlugin(), this::check, 400, 400);
        }

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

        private void check(){
            currentBlocks();

            if(!Config.ActiveWinconditions.contains(Winconditions.RELATIVE_PERCENT))
                return;

            if(getPercent() >= Config.PercentWin){
                Bukkit.broadcastMessage(FightSystem.PREFIX + "§cDer Schiff von " + team.getColoredName() + " §cwurde zu stark beschädigt!");
                FightSystem.setSpectateState(Fight.getOpposite(team), "RelativePercent");
            }
        }

        public double getPercent(){
            if(currentBlocks > blockCount)
                return 0;
            return (blockCount - currentBlocks) * 100 / (double) blockCount;
        }

        public int getBlockCount(){
            return blockCount;
        }

        private int currentBlocks(){
            // Entern active
            if(!Config.EnterStages.isEmpty() && Config.EnterStages.get(0) >= Wincondition.getTimeOverCountdown().getTimeLeft())
                return currentBlocks;

            currentBlocks = 0;
            team.getSchemRegion().forEach((x, y, z) -> {
                if(!ignoredBlocks.contains(world.getBlockAt(x,y,z).getType()))
                    currentBlocks++;
            });
            return currentBlocks;
        }
    }
}