package de.nexuslobby.modules.gadgets;

import de.nexuslobby.NexusLobby;
import de.nexuslobby.api.Module;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.Particle;
import org.bukkit.Sound;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.entity.PlayerLeashEntityEvent;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.event.player.PlayerFishEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.event.player.PlayerUnleashEntityEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemFlag;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;

public class GadgetModule implements Module, Listener {

    private final Map<UUID, Balloon>         activeBalloons = new HashMap<>();
    private final Map<UUID, ParticleEffect>  activeEffects  = new HashMap<>();
    private final Set<UUID>                  activeShields  = new HashSet<>();

    // ── Cooldowns ─────────────────────────────────────────────────────────────
    /** Letzter Einsatz-Zeitstempel pro Spieler */
    private final Map<UUID, Long> meteorCooldowns    = new HashMap<>();
    private final Map<UUID, Long> freezeCooldowns    = new HashMap<>();
    private final Map<UUID, Long> grapplingCooldowns = new HashMap<>();

    /** Cooldown-Dauer in Millisekunden */
    private static final long METEOR_CD_MS    = 15_000L; // 15 Sekunden
    private static final long FREEZE_CD_MS    = 10_000L; // 10 Sekunden
    private static final long GRAPPLING_CD_MS =  3_000L; //  3 Sekunden
    // ──────────────────────────────────────────────────────────────────────────

    private final String MAIN_TITLE     = "§b§lGadgets §8- §7Menü";
    private final String BALLOON_TITLE  = "§b§lGadgets §8- §eBallons";
    private final String PARTICLE_TITLE = "§b§lGadgets §8- §dPartikel";
    private final String FUN_TITLE      = "§b§lGadgets §8- §6Lustiges";
    private final String HAT_TITLE      = "§b§lGadgets §8- §aHüte & Köpfe";
    private final String PET_TITLE      = "§b§lGadgets §8- §dBegleiter";

    @Override
    public String getName() { return "Gadgets"; }

    @Override
    public void onEnable() {
        Bukkit.getPluginManager().registerEvents(this, NexusLobby.getInstance());
        PetManager.register();

        Bukkit.getScheduler().runTaskTimer(NexusLobby.getInstance(), () -> {
            PetManager.updatePets();
            activeBalloons.values().forEach(Balloon::update);
            for (Player p : Bukkit.getOnlinePlayers()) {
                UUID uuid = p.getUniqueId();
                handleSpecialHatEffects(p);
                if (activeEffects.containsKey(uuid)) activeEffects.get(uuid).update(p);
                if (activeShields.contains(uuid)) ShieldTask.handleShield(p);
            }
        }, 1L, 1L);
    }

    // ─────────────────────────────────────────────────────────────────────────
    //  Cooldown-Hilfsmethoden
    // ─────────────────────────────────────────────────────────────────────────

    /**
     * Prüft ob der Spieler noch im Cooldown ist.
     * @return true  → Gadget darf benutzt werden (Cooldown abgelaufen / nicht gesetzt)
     *         false → Cooldown noch aktiv, Nachricht wird gesendet
     */
    private boolean checkAndSetCooldown(Player player, Map<UUID, Long> cdMap, long durationMs, String gadgetName) {
        long now  = System.currentTimeMillis();
        long last = cdMap.getOrDefault(player.getUniqueId(), 0L);
        long remaining = durationMs - (now - last);
        if (remaining > 0) {
            long secLeft = (long) Math.ceil(remaining / 1000.0);
            player.sendMessage("§8[§6Nexus§8] §c" + gadgetName + " §7hat noch §e" + secLeft + "s §7Cooldown.");
            player.playSound(player.getLocation(), Sound.BLOCK_NOTE_BLOCK_BASS, 0.5f, 0.8f);
            return false;
        }
        cdMap.put(player.getUniqueId(), now);
        return true;
    }

    // ─────────────────────────────────────────────────────────────────────────
    //  Event Handler
    // ─────────────────────────────────────────────────────────────────────────

    /**
     * Verhindert Rechtsklick auf den unsichtbaren Ballon-Pig
     * (verhindert Leine lösen, Inventar-Öffnen, etc.).
     */
    @EventHandler
    public void onInteractAtEntity(org.bukkit.event.player.PlayerInteractAtEntityEvent event) {
        if (event.getRightClicked().getScoreboardTags().contains("nexus_balloon")) {
            event.setCancelled(true);
        }
    }

    /**
     * Verhindert das Ablösen der Leine vom Ballon-Pig durch Rechtsklick.
     * Ohne diesen Handler wird die Leine gedroppt und der Ballon verschwindet.
     */
    @EventHandler
    public void onUnleash(PlayerUnleashEntityEvent event) {
        if (event.getEntity().getScoreboardTags().contains("nexus_balloon")) {
            event.setCancelled(true);
        }
    }

    @EventHandler
    public void onInteract(PlayerInteractEvent event) {
        ItemStack item = event.getItem();
        if (item == null || !item.hasItemMeta() || !item.getItemMeta().hasDisplayName()) return;
        String name = item.getItemMeta().getDisplayName();

        if (event.getAction() != Action.RIGHT_CLICK_AIR && event.getAction() != Action.RIGHT_CLICK_BLOCK) return;

        Player player = event.getPlayer();

        // Wenn der Schütze selbst geschützt ist (Parkour oder Admin-Schutz) → kampfbezogene Gadgets sperren
        if (GadgetShield.isProtected(player)) {
            if (name.equals("§b§lFreeze-Ray") || name.equals("§c§lMeteorit")) {
                player.sendMessage("§8[§6Parkour§8] §cGadgets können während des Parkours nicht benutzt werden.");
                event.setCancelled(true);
                return;
            }
        }

        if (name.equals("§b§lFreeze-Ray")) {
            event.setCancelled(true);
            if (checkAndSetCooldown(player, freezeCooldowns, FREEZE_CD_MS, "§b§lFreeze-Ray")) {
                FreezeRay.shoot(player);
            }

        } else if (name.equals("§6§lPaintball-Gun")) {
            PaintballGun.shoot(player);
            event.setCancelled(true);

        } else if (name.equals("§c§lMeteorit")) {
            event.setCancelled(true);
            if (checkAndSetCooldown(player, meteorCooldowns, METEOR_CD_MS, "§c§lMeteorit")) {
                MeteorStrike.launch(player);
            }
        }
    }

    @EventHandler
    public void onFish(PlayerFishEvent event) {
        Player player = event.getPlayer();
        ItemStack item = player.getInventory().getItemInMainHand();
        if (item.getType() != Material.FISHING_ROD || !item.hasItemMeta() || !item.getItemMeta().hasDisplayName()) return;
        if (!item.getItemMeta().getDisplayName().equals("§b§lEnterhaken")) return;

        if (event.getState() == PlayerFishEvent.State.IN_GROUND
                || event.getState() == PlayerFishEvent.State.REEL_IN
                || event.getState() == PlayerFishEvent.State.CAUGHT_ENTITY) {

            if (event.getHook() == null) return;

            // Parkour-Check: Schütze im Parkour oder Admin-Schutz → nicht benutzen
            if (GadgetShield.isProtected(player)) {
                player.sendMessage("§8[§6Nexus§8] §cDer Enterhaken ist gerade nicht verfügbar.");
                return;
            }

            if (!checkAndSetCooldown(player, grapplingCooldowns, GRAPPLING_CD_MS, "§b§lEnterhaken")) return;

            GrapplingHook.pullPlayer(player, event.getHook().getLocation());
        }
    }

    @EventHandler
    public void onPlayerMove(PlayerMoveEvent event) {
        if (FreezeRay.isFrozen(event.getPlayer().getUniqueId())) {
            if (event.getFrom().getX() != event.getTo().getX() || event.getFrom().getZ() != event.getTo().getZ()) {
                event.setTo(event.getFrom().setDirection(event.getTo().getDirection()));
            }
        }
    }

    // ─────────────────────────────────────────────────────────────────────────
    //  GUI
    // ─────────────────────────────────────────────────────────────────────────

    private void handleSpecialHatEffects(Player p) {
        ItemStack hat = p.getInventory().getHelmet();
        if (hat == null || hat.getType() == Material.AIR) return;

        switch (hat.getType()) {
            case CAMPFIRE    -> p.getWorld().spawnParticle(Particle.CAMPFIRE_COSY_SMOKE, p.getLocation().add(0, 2.2, 0), 1, 0.05, 0.05, 0.05, 0.02);
            case SPAWNER     -> p.getWorld().spawnParticle(Particle.FLAME,  p.getLocation().add(0, 2.1, 0), 1, 0.12, 0.12, 0.12, 0.02);
            case SEA_LANTERN, BEACON -> p.getWorld().spawnParticle(Particle.END_ROD, p.getLocation().add(0, 2.1, 0), 1, 0.1, 0.1, 0.1, 0.03);
            case ENCHANTING_TABLE    -> p.getWorld().spawnParticle(Particle.ENCHANT, p.getLocation().add(0, 2.3, 0), 1, 0.2, 0.2, 0.2, 0.5);
            default -> {}
        }
    }

    public void openGUI(Player player) {
        Inventory gui = Bukkit.createInventory(null, 27, MAIN_TITLE);
        fillEdges(gui);
        gui.setItem(10, createItem(Material.LEAD,           "§e§lBallons",  "§7Wähle einen fliegenden Begleiter"));
        gui.setItem(11, createItem(Material.GOLDEN_HELMET,  "§a§lHüte",     "§7Setze dir etwas auf den Kopf"));
        gui.setItem(13, createItem(Material.BONE,           "§d§lBegleiter", "§7Echte Tiere, die dir folgen"));
        gui.setItem(15, createItem(Material.FIREWORK_ROCKET,"§6§lLustiges", "§7Witzige Effekte"));
        gui.setItem(16, createItem(Material.NETHER_STAR,    "§d§lPartikel", "§7Magische Auren & Effekte"));
        gui.setItem(22, createItem(Material.BARRIER,        "§c§lStopp",    "§7Alle Gadgets entfernen"));
        player.openInventory(gui);
    }

    private void openHatGUI(Player player) {
        Inventory gui = Bukkit.createInventory(null, 45, HAT_TITLE);
        fillEdges(gui);
        gui.setItem(10, createItem(Material.JACK_O_LANTERN,  "§6Kürbis-Hut",     "§7Es ist immer Halloween!"));
        gui.setItem(11, createItem(Material.SEA_LANTERN,     "§bMeeres-Leuchten", "§7§oEffekt: Glitzern"));
        gui.setItem(12, createItem(Material.GLOWSTONE,       "§eGlowstone-Kopf",  "§7Werde zur Lampe"));
        gui.setItem(13, createItem(Material.TNT,             "§cExplosiv-Hut",    "§7Vorsicht, heiß!"));
        gui.setItem(14, createItem(Material.GLASS,           "§fAstronaut",       "§7Bereit für den Mond?"));
        gui.setItem(15, createItem(Material.DRAGON_HEAD,     "§5Enderdrache",     "§7Der König der Lüfte"));
        gui.setItem(16, createItem(Material.CAKE,            "§dKuchen-Kopf",     "§7Jeder mag Kuchen!"));
        gui.setItem(19, createItem(Material.SLIME_BLOCK,     "§aGlibber-Block",   "§7Ziemlich klebrig..."));
        gui.setItem(20, createItem(Material.MELON,           "§aMelonen-Helm",    "§7Frisch und saftig"));
        gui.setItem(21, createItem(Material.HAY_BLOCK,       "§eStrohhut",        "§7Sommer auf dem Land"));
        gui.setItem(22, createItem(Material.SPAWNER,         "§8Monster-Käfig",   "§7§oEffekt: Flammen"));
        gui.setItem(23, createItem(Material.CRAFTING_TABLE,  "§6Werkbank",        "§7Immer am Basteln"));
        gui.setItem(24, createItem(Material.BOOKSHELF,       "§fBücherregal",     "§7Ein wahrer Schlaukopf"));
        gui.setItem(25, createItem(Material.HONEY_BLOCK,     "§6Honig-Hut",       "§7Süß und klebrig"));
        gui.setItem(28, createItem(Material.GOLD_BLOCK,      "§6Gold-Bonze",      "§7Zeig was du hast"));
        gui.setItem(29, createItem(Material.DIAMOND_ORE,     "§bDiamant-Erz",     "§7Bau mich bloß nicht ab!"));
        gui.setItem(30, createItem(Material.BEACON,          "§fLeuchtfeuer",     "§7§oEffekt: Glitzern"));
        gui.setItem(31, createItem(Material.CONDUIT,         "§3Auge des Meeres", "§7Die Macht von Atlantis"));
        gui.setItem(32, createItem(Material.ENCHANTING_TABLE,"§dMagier",          "§7§oEffekt: Runen"));
        gui.setItem(33, createItem(Material.CAMPFIRE,        "§cHeißer Kopf",     "§7§oEffekt: Rauch"));
        gui.setItem(34, createItem(Material.SKELETON_SKULL,  "§7Skelett",         "§7Ein wenig gruselig"));
        gui.setItem(40, createItem(Material.ARROW,           "§7Zurück",          "§8Zum Hauptmenü"));
        player.openInventory(gui);
    }

    private void openPetGUI(Player player) {
        Inventory gui = Bukkit.createInventory(null, 27, PET_TITLE);
        fillEdges(gui);
        gui.setItem(11, createItem(Material.BONE,          "§fWolf",   "§7Ein treuer Begleiter"));
        gui.setItem(13, createItem(Material.CAT_SPAWN_EGG, "§6Katze",  "§7Ein verschmuster Freund"));
        gui.setItem(15, createItem(Material.PANDA_SPAWN_EGG,"§aPanda", "§7Ein gemütlicher Zeitgenosse"));
        gui.setItem(22, createItem(Material.ARROW,         "§7Zurück", "§8Zum Hauptmenü"));
        player.openInventory(gui);
    }

    private void openBalloonGUI(Player player) {
        Inventory gui = Bukkit.createInventory(null, 36, BALLOON_TITLE);
        fillEdges(gui);
        Material[] wools = {Material.WHITE_WOOL, Material.ORANGE_WOOL, Material.MAGENTA_WOOL,
                Material.LIGHT_BLUE_WOOL, Material.YELLOW_WOOL, Material.LIME_WOOL, Material.PINK_WOOL,
                Material.GRAY_WOOL, Material.CYAN_WOOL, Material.PURPLE_WOOL, Material.BLUE_WOOL,
                Material.BROWN_WOOL, Material.GREEN_WOOL, Material.RED_WOOL};
        int slot = 10;
        for (Material m : wools) {
            if (slot == 17) slot = 19;
            gui.setItem(slot++, createItem(m, "§fBallon: " + m.name().replace("_WOOL",""), "§7Klicke zum Ausrüsten"));
        }
        gui.setItem(31, createItem(Material.ARROW, "§7Zurück", "§8Zum Hauptmenü"));
        player.openInventory(gui);
    }

    private void openParticleGUI(Player player) {
        Inventory gui = Bukkit.createInventory(null, 27, PARTICLE_TITLE);
        fillEdges(gui);
        gui.setItem(11, createItem(Material.POPPY,        "§cHerzchen-Aura",  "§7Verbreite Liebe in der Lobby"));
        gui.setItem(13, createItem(Material.BLAZE_POWDER, "§6Flammen-Ring",   "§7Lass es brennen!"));
        gui.setItem(15, createItem(Material.WATER_BUCKET, "§bRegenwolke",     "§7Deine persönliche Abkühlung"));
        gui.setItem(22, createItem(Material.ARROW,        "§7Zurück",         "§8Zum Hauptmenü"));
        player.openInventory(gui);
    }

    private void openFunGUI(Player player) {
        Inventory gui = Bukkit.createInventory(null, 27, FUN_TITLE);
        fillEdges(gui);
        gui.setItem(10, createItem(Material.FISHING_ROD,  "§b§lEnterhaken",  "§7Zieh dich durch die Luft! §8(3s CD)"));
        gui.setItem(11, createItem(Material.PACKED_ICE,   "§b§lFreeze-Ray",  "§7Friere andere ein! §8(10s CD)"));
        gui.setItem(12, createItem(Material.GOLDEN_HOE,   "§6§lPaintball-Gun","§7Male die Lobby bunt aus!"));
        gui.setItem(14, createItem(Material.FIRE_CHARGE,  "§c§lMeteorit",    "§7Lass es krachen! §8(15s CD)"));
        gui.setItem(15, createItem(Material.SHIELD,       "§5§lSchutzzone",  "§7Halte andere auf Distanz"));
        gui.setItem(16, createItem(Material.EGG,          "§f§lChicken-Rain","§7Gack-Gack! Hühner überall!"));
        gui.setItem(22, createItem(Material.ARROW,        "§7Zurück",        "§8Zum Hauptmenü"));
        player.openInventory(gui);
    }

    @EventHandler
    public void onInventoryClick(InventoryClickEvent event) {
        String title = event.getView().getTitle();
        if (!title.startsWith("§b§lGadgets")) return;
        event.setCancelled(true);
        Player player = (Player) event.getWhoClicked();
        ItemStack item = event.getCurrentItem();
        if (item == null || item.getType() == Material.AIR) return;

        if (item.getType() == Material.ARROW) { openGUI(player); return; }

        if (title.equals(MAIN_TITLE)) {
            if      (item.getType() == Material.LEAD)            openBalloonGUI(player);
            else if (item.getType() == Material.GOLDEN_HELMET)   openHatGUI(player);
            else if (item.getType() == Material.BONE)            openPetGUI(player);
            else if (item.getType() == Material.NETHER_STAR)     openParticleGUI(player);
            else if (item.getType() == Material.FIREWORK_ROCKET) openFunGUI(player);
            else if (item.getType() == Material.BARRIER)         { removeGadgets(player); player.closeInventory(); }
        } else if (title.equals(HAT_TITLE)) {
            if (item.getType() != Material.GRAY_STAINED_GLASS_PANE) {
                String hatName = item.hasItemMeta() && item.getItemMeta().hasDisplayName()
                        ? item.getItemMeta().getDisplayName() : item.getType().name();
                HatManager.setHat(player, item.getType(), hatName);
                player.playSound(player.getLocation(), Sound.ITEM_ARMOR_EQUIP_GENERIC, 1, 1);
                player.closeInventory();
            }
        } else if (title.equals(PET_TITLE)) {
            if      (item.getType() == Material.BONE)           PetManager.spawnEntityPet(player, "WOLF");
            else if (item.getType() == Material.CAT_SPAWN_EGG)  PetManager.spawnEntityPet(player, "CAT");
            else if (item.getType() == Material.PANDA_SPAWN_EGG) PetManager.spawnEntityPet(player, "PANDA");
            player.sendMessage("§8[§6Nexus§8] §dDein Pet wurde gerufen!");
            player.closeInventory();
        } else if (title.equals(BALLOON_TITLE)) {
            if (item.getType().toString().endsWith("_WOOL")) {
                if (activeBalloons.containsKey(player.getUniqueId())) activeBalloons.get(player.getUniqueId()).remove();
                activeBalloons.put(player.getUniqueId(), new Balloon(player, item.getType()));
                player.sendMessage("§8[§6Nexus§8] §aBallon aktiviert!");
                player.closeInventory();
            }
        } else if (title.equals(PARTICLE_TITLE)) {
            if      (item.getType() == Material.POPPY)        activeEffects.put(player.getUniqueId(), new ParticleEffect("hearts"));
            else if (item.getType() == Material.BLAZE_POWDER) activeEffects.put(player.getUniqueId(), new ParticleEffect("flames"));
            else if (item.getType() == Material.WATER_BUCKET) activeEffects.put(player.getUniqueId(), new ParticleEffect("cloud"));
            player.sendMessage("§8[§6Nexus§8] §aPartikel aktiviert!");
            player.closeInventory();
        } else if (title.equals(FUN_TITLE)) {
            if (item.getType() == Material.EGG) {
                ChickenRain.start(player);
                player.sendMessage("§8[§6Nexus§8] §fHühnerregen gestartet!");
                player.closeInventory();
            } else if (item.getType() == Material.FISHING_ROD) {
                player.getInventory().addItem(createItem(Material.FISHING_ROD, "§b§lEnterhaken", "§7Rechtsklick zum Katapultieren §8(3s CD)"));
                player.closeInventory();
            } else if (item.getType() == Material.PACKED_ICE) {
                player.getInventory().addItem(createItem(Material.PACKED_ICE, "§b§lFreeze-Ray", "§7Rechtsklick zum Einfrieren §8(10s CD)"));
                player.closeInventory();
            } else if (item.getType() == Material.GOLDEN_HOE) {
                player.getInventory().addItem(createItem(Material.GOLDEN_HOE, "§6§lPaintball-Gun", "§7Rechtsklick zum Schießen"));
                player.closeInventory();
            } else if (item.getType() == Material.FIRE_CHARGE) {
                player.getInventory().addItem(createItem(Material.FIRE_CHARGE, "§c§lMeteorit", "§7Rechtsklick zum Markieren §8(15s CD)"));
                player.closeInventory();
            } else if (item.getType() == Material.SHIELD) {
                if (activeShields.contains(player.getUniqueId())) {
                    activeShields.remove(player.getUniqueId());
                    player.sendMessage("§8[§6Nexus§8] §cSchutzzone deaktiviert.");
                } else {
                    activeShields.add(player.getUniqueId());
                    player.sendMessage("§8[§6Nexus§8] §5Schutzzone aktiviert!");
                }
                player.closeInventory();
            }
        }
    }

    private void removeGadgets(Player player) {
        if (activeBalloons.containsKey(player.getUniqueId())) {
            activeBalloons.get(player.getUniqueId()).remove();
            activeBalloons.remove(player.getUniqueId());
        }
        activeEffects.remove(player.getUniqueId());
        activeShields.remove(player.getUniqueId());
        PetManager.removePet(player);
        FreezeRay.unfreeze(player.getUniqueId());
        HatManager.removeHat(player);
        player.getInventory().remove(Material.FISHING_ROD);
        player.getInventory().remove(Material.PACKED_ICE);
        player.getInventory().remove(Material.GOLDEN_HOE);
        player.getInventory().remove(Material.FIRE_CHARGE);
        player.sendMessage("§8[§6Nexus§8] §cAlle Gadgets abgelegt.");
    }

    private void fillEdges(Inventory inv) {
        ItemStack glass = createItem(Material.GRAY_STAINED_GLASS_PANE, " ", null);
        for (int i = 0; i < inv.getSize(); i++) {
            if (i < 9 || i >= inv.getSize() - 9 || i % 9 == 0 || (i + 1) % 9 == 0) inv.setItem(i, glass);
        }
    }

    private ItemStack createItem(Material mat, String name, String lore) {
        ItemStack item = new ItemStack(mat);
        ItemMeta meta = item.getItemMeta();
        if (meta != null) {
            meta.setDisplayName(name);
            List<String> l = new ArrayList<>();
            if (lore != null && !lore.isEmpty()) {
                l.add(ChatColor.translateAlternateColorCodes('&', lore));
                meta.setLore(l);
            }
            meta.addItemFlags(ItemFlag.HIDE_ATTRIBUTES);
            meta.addItemFlags(ItemFlag.HIDE_UNBREAKABLE);
            meta.addItemFlags(ItemFlag.HIDE_ENCHANTS);
            item.setItemMeta(meta);
        }
        return item;
    }

    @Override
    public void onDisable() {
        org.bukkit.event.HandlerList.unregisterAll(this);
        PetManager.unregister();
        PetManager.clearAll();
        activeBalloons.values().forEach(Balloon::remove);
        activeBalloons.clear();
        activeEffects.clear();
        activeShields.clear();
        GadgetShield.clear();
    }
}