package me.viper.survivalmechanics.mechanics;

import me.viper.survivalmechanics.SurvivalMechanics;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitTask;
import org.bukkit.scheduler.BukkitRunnable;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;
import org.bukkit.ChatColor;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

public class FatigueManager implements Listener {
    private final JavaPlugin plugin;
    private final Map<UUID, Integer> fatigueLevels = new HashMap<>();
    private final Map<UUID, BukkitTask> deathTimers = new HashMap<>();
    private final int maxFatigue;
    private final double decreaseRate;
    private final double activityMultiplier;
    private final double nightMultiplier;
    private final double climbingMultiplier;
    private final int climbingHeightThreshold;
    private final double climbingHeightScaling;
    private final int slownessDuration;
    private final int slownessAmplifier;
    private final int blurDuration;
    private final int blurAmplifier;
    private final double staminaPenalty;
    private final int criticalThreshold;
    private final boolean deathEnabled;
    private final int deathDelay;
    private final int messageCooldown;
    private final boolean criticalMessageOnly;

    public FatigueManager(JavaPlugin plugin) {
        this.plugin = plugin;
        this.maxFatigue = plugin.getConfig().getInt("fatigue.max", 100);
        this.decreaseRate = plugin.getConfig().getDouble("fatigue.decrease-rate", 0.5);
        this.activityMultiplier = plugin.getConfig().getDouble("fatigue.activity-multiplier", 2);
        this.nightMultiplier = plugin.getConfig().getDouble("fatigue.night-multiplier", 2);
        this.climbingMultiplier = plugin.getConfig().getDouble("fatigue.climbing-multiplier", 2);
        this.climbingHeightThreshold = plugin.getConfig().getInt("fatigue.climbing-height-threshold", 100);
        this.climbingHeightScaling = plugin.getConfig().getDouble("fatigue.climbing-height-scaling", 0.01);
        this.slownessDuration = plugin.getConfig().getInt("fatigue.slowness-duration", 200);
        this.slownessAmplifier = plugin.getConfig().getInt("fatigue.slowness-amplifier", 1);
        this.blurDuration = plugin.getConfig().getInt("fatigue.blur-duration", 100);
        this.blurAmplifier = plugin.getConfig().getInt("fatigue.blur-amplifier", 1);
        this.staminaPenalty = plugin.getConfig().getDouble("fatigue.stamina-penalty", 1.5);
        this.criticalThreshold = plugin.getConfig().getInt("fatigue.critical-threshold", 20);
        this.deathEnabled = plugin.getConfig().getBoolean("fatigue.death-enabled", true);
        this.deathDelay = plugin.getConfig().getInt("fatigue.death-delay", 60);
        this.messageCooldown = plugin.getConfig().getInt("fatigue.message-cooldown", 60);
        this.criticalMessageOnly = plugin.getConfig().getBoolean("fatigue.critical-message-only", true);
        plugin.getServer().getPluginManager().registerEvents(this, plugin);
    }

    public void startFatigueTask() {
        new BukkitRunnable() {
            @Override
            public void run() {
                for (Player player : plugin.getServer().getOnlinePlayers()) {
                    UUID playerId = player.getUniqueId();
                    int fatigue = fatigueLevels.getOrDefault(playerId, maxFatigue);
                    double decrease = decreaseRate;
                    long time = player.getWorld().getTime();
                    boolean isNight = time >= 12000 && time < 24000;
                    if (isNight) {
                        decrease *= nightMultiplier;
                    }
                    if (player.isSprinting() || player.isSwimming()) {
                        decrease *= activityMultiplier;
                    }
                    fatigue = Math.max(0, fatigue - (int) decrease);
                    fatigueLevels.put(playerId, fatigue);

                    if (fatigue <= criticalThreshold && fatigue > 0) {
                        player.addPotionEffect(new PotionEffect(PotionEffectType.SLOWNESS, slownessDuration, slownessAmplifier));
                        player.addPotionEffect(new PotionEffect(PotionEffectType.BLINDNESS, blurDuration, blurAmplifier));
                        if (canSendMessage(playerId)) {
                            player.sendMessage(ChatColor.translateAlternateColorCodes('&', ((SurvivalMechanics) plugin).getLangConfig().getString("fatigue.critical", "§7Du kannst dich kaum wach halten!")));
                            player.getWorld().playSound(player.getLocation(), "entity.player.hurt", 1.0f, 1.0f);
                            setLastMessageTime(playerId);
                        }
                    } else if (fatigue == 0 && deathEnabled && !deathTimers.containsKey(playerId)) {
                        player.sendMessage(ChatColor.translateAlternateColorCodes('&', ((SurvivalMechanics) plugin).getLangConfig().getString("fatigue.warning", "§4Deine Erschöpfung wird dich umbringen!")));
                        player.getWorld().playSound(player.getLocation(), "entity.player.hurt", 1.0f, 1.0f);
                        deathTimers.put(playerId, new BukkitRunnable() {
                            @Override
                            public void run() {
                                if (fatigueLevels.getOrDefault(playerId, maxFatigue) == 0) {
                                    player.setHealth(0);
                                }
                                deathTimers.remove(playerId);
                            }
                        }.runTaskLater(plugin, 20L * deathDelay));
                    } else if (fatigue >= maxFatigue && canSendMessage(playerId) && !criticalMessageOnly) {
                        player.sendMessage(ChatColor.translateAlternateColorCodes('&', ((SurvivalMechanics) plugin).getLangConfig().getString("fatigue.rested", "§aDu erwachst erholt und voller Kraft!")));
                        player.getWorld().playSound(player.getLocation(), "entity.player.levelup", 1.0f, 1.0f);
                        setLastMessageTime(playerId);
                    }
                }
            }
        }.runTaskTimer(plugin, 0L, 20L * 60); // Alle 60 Sekunden
    }

    @EventHandler
    public void onPlayerMove(PlayerMoveEvent event) {
        Player player = event.getPlayer();
        UUID playerId = player.getUniqueId();
        int fatigue = fatigueLevels.getOrDefault(playerId, maxFatigue);
        if (player.isClimbing() && player.getLocation().getY() > climbingHeightThreshold) {
            double heightFactor = 1 + ((player.getLocation().getY() - climbingHeightThreshold) * climbingHeightScaling);
            fatigue = Math.max(0, fatigue - (int) (decreaseRate * climbingMultiplier * heightFactor));
            fatigueLevels.put(playerId, fatigue);
            if (fatigue <= criticalThreshold && fatigue > 0 && canSendMessage(playerId)) {
                player.addPotionEffect(new PotionEffect(PotionEffectType.SLOWNESS, slownessDuration, slownessAmplifier));
                player.addPotionEffect(new PotionEffect(PotionEffectType.BLINDNESS, blurDuration, blurAmplifier));
                player.sendMessage(ChatColor.translateAlternateColorCodes('&', ((SurvivalMechanics) plugin).getLangConfig().getString("fatigue.critical", "§7Du kannst dich kaum wach halten!")));
                player.getWorld().playSound(player.getLocation(), "entity.player.hurt", 1.0f, 1.0f);
                setLastMessageTime(playerId);
            }
        }
        ((SurvivalMechanics) plugin).getStaminaManager().applyFatiguePenalty(playerId, staminaPenalty);
    }

    private boolean canSendMessage(UUID playerId) {
        return ((SurvivalMechanics) plugin).canSendMessage(playerId, "fatigue");
    }

    private void setLastMessageTime(UUID playerId) {
        ((SurvivalMechanics) plugin).setLastMessageTime(playerId, "fatigue");
    }

    public int getFatigue(UUID playerId) {
        return fatigueLevels.getOrDefault(playerId, maxFatigue);
    }

    public void loadFatigue(UUID playerId, int fatigue) {
        fatigueLevels.put(playerId, fatigue);
    }
}