/* 
    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.misslewars;

import org.bukkit.ChatColor;
import org.bukkit.GameMode;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.scoreboard.Objective;
import org.bukkit.scoreboard.Team;

import java.util.HashSet;
import java.util.LinkedList;
import java.util.Objects;
import java.util.Set;

public class MWTeam {
	private static final ItemStack bow = new ItemStack(Material.BOW);

	static {
		ItemMeta bowMeta = Objects.requireNonNull(bow.getItemMeta());
		bowMeta.addEnchant(Enchantment.ARROW_FIRE, 1, true);
		bowMeta.addEnchant(Enchantment.ARROW_KNOCKBACK, 1, true);
		bowMeta.addEnchant(Enchantment.KNOCKBACK, 1, true);
		bowMeta.addEnchant(Enchantment.DAMAGE_ALL, 2, true);
		bowMeta.setUnbreakable(true);
		bow.setItemMeta(bowMeta);
	}

	private final ChatColor color;
	private final String teamName;
	private final Team sbteam; //scoreboard-Team
	private final Location spawn;
	private final int portalZ;

	private final LinkedList<Player> players =  new LinkedList<>();
	private final Set<Player> openInvitations = new HashSet<>();
	
	MWTeam(ChatColor color, Location spawn, String teamName, int portalZ) {
		this.teamName = teamName;
		this.color = color;
		this.spawn = spawn;
		this.portalZ = portalZ;
		if(FightScoreboard.getScoreboard().getTeam(teamName) == null)
            sbteam = FightScoreboard.getScoreboard().registerNewTeam(teamName);
        else
            sbteam = FightScoreboard.getScoreboard().getTeam(teamName);
        assert sbteam != null;
        sbteam.setAllowFriendlyFire(false);
        sbteam.setColor(color);
	}

	public void givePlayerItem(ItemStack item) {
		Player p = players.removeFirst();
		players.addLast(p);

		Inventory inventory = p.getInventory();
		for (int i = 0; i <= 35; i++) { //35 is the last normal inventory slot
			ItemStack itemStack = inventory.getItem(i);
			if (itemStack != null && itemStack.isSimilar(item) && itemStack.getAmount() != itemStack.getMaxStackSize()) {
				itemStack.setAmount(itemStack.getAmount() + item.getAmount());
				inventory.setItem(i, itemStack);
				p.updateInventory();
				return;
			}
		}

		for (int i = 0; i <= 35; i++) { //35 is the last normal inventory slot
			ItemStack itemStack = inventory.getItem(i);
			if (itemStack == null || itemStack.getType().equals(Material.AIR)) {
				inventory.setItem(i, item);
				p.updateInventory();
				return;
			}
		}
	}

	public void teamScoreboard(Objective objective) {
		players.forEach(p -> objective.getScore(getColorCode() + p.getName()).setScore(1));
	}

	public int size() {
		return players.size();
	}

	public int getPortalZ() {
		return portalZ;
	}

	public Location getSpawn(){
		return spawn;
	}

	public void join(Player p) {
		players.add(p);
		p.teleport(spawn);
		p.setGameMode(GameMode.SURVIVAL);
		p.getInventory().setItem(0, bow);
		sbteam.addPlayer(p);
		p.setDisplayName(color + p.getName());
		if (MissileWars.getFightState() == FightState.WAITING && !enemy().players.isEmpty())
			MissileWars.startRound();
	}
	
	public void leave(Player p) {
		if (!players.contains(p)) return;

		players.remove(p);
		sbteam.removePlayer(p);
		if (players.isEmpty() && MissileWars.getFightState() == FightState.FIGHTING)
			MissileWars.end(WinReasons.NO_ENEMY, enemy());
	}

	public void invitePlayer(Player p) {
		if (enemy().openInvitations.contains(p)) return;

		openInvitations.add(p);
	}

	public void acceptInvite(Player p) {
		removeInvitations(p);
		join(p);
	}
	
	private MWTeam enemy() {
		if (this == MissileWars.getRedTeam())
			return MissileWars.getBlueTeam();

		return MissileWars.getRedTeam();
	}
	
	public String getColorCode(){
		return "§" + color.getChar();
	}
	
	public boolean hasPlayer(Player p) {
		return players.contains(p);
	}

	public boolean hasInvite(Player p) {
		return openInvitations.contains(p);
	}

	public String getColoredName() {
		return color.toString() + teamName;
	}

	public static void removeInvitations(Player p) {
		MissileWars.getRedTeam().openInvitations.remove(p);
		MissileWars.getBlueTeam().openInvitations.remove(p);
	}

}