package games.coob.v1_19;

import games.coob.nmsinterface.NMSHologramI;
import lombok.Getter;
import net.minecraft.network.protocol.game.ClientboundAddEntityPacket;
import net.minecraft.network.protocol.game.ClientboundRemoveEntitiesPacket;
import net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.entity.decoration.ArmorStand;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.entity.Player;
import org.bukkit.metadata.FixedMetadataValue;
import org.mineacademy.fo.Messenger;
import org.mineacademy.fo.ReflectionUtil;
import org.mineacademy.fo.collection.SerializedMap;
import org.mineacademy.fo.plugin.SimplePlugin;
import org.mineacademy.fo.remain.Remain;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;

public class NMSHologram_v1_19 implements NMSHologramI {

    /**
     * The spawned NMS entity
     */
    @Getter
    private ArmorStand entityArmorStand;

    private List<ArmorStand> entityLinesList = new ArrayList<>();

    private List<String> lines;

    public ArmorStand createEntity(final Object nmsWorld, final Location location) {
        entityArmorStand = new ArmorStand((ServerLevel) nmsWorld, location.getX(), location.getY(), location.getZ());

        this.entityArmorStand.setInvisible(true);

        return entityArmorStand;
    }

    @Override
    public UUID getUniqueId() {
        return this.entityArmorStand.getBukkitEntity().getUniqueId();
    }

    /**
     * Convenience method to return the location of this NPC.
     *
     * @return
     */
    @Override
    public Location getLocation() {
        //Valid.checkBoolean(this.isShown(), "Cannot call getLocation when " + this + " is not created");

        return this.entityArmorStand.getBukkitEntity().getLocation();
    }

    @Override
    public void sendPackets(final Player player, final Object nmsArmorStand) {
        final ArmorStand nmsStand = (ArmorStand) nmsArmorStand;

        System.out.println("sending packet");

        Remain.sendPacket(player, new ClientboundAddEntityPacket(nmsStand));
        Remain.sendPacket(player, new ClientboundSetEntityDataPacket(nmsStand.getId(), nmsStand.getEntityData().packDirty()));
        player.setMetadata(getUniqueId().toString(), new FixedMetadataValue(SimplePlugin.getInstance(), ""));
    }

    @Override
    public void setLines(final List<String> lines) {
        this.lines = lines;
    }

    public void setEntityList(final List<ArmorStand> armorStandList) {
        this.entityLinesList = armorStandList;
    }

    public void setEntity(final ArmorStand armorStand) {
        this.entityArmorStand = armorStand;
    }

    @Override
    public List<String> getLines() {
        return this.lines;
    }

    @Override
    public void remove(final Player player) {
        for (final ArmorStand armorStand : this.entityLinesList)
            Remain.sendPacket(player, new ClientboundRemoveEntitiesPacket(armorStand.getId()));

        HologramRegistry_v1_19.getInstance().unregister(this);
        player.removeMetadata(getUniqueId().toString(), SimplePlugin.getInstance());
        System.out.println("removed");
    }

    @Override
    public void hide(final Player player) {
        for (final ArmorStand armorStand : this.entityLinesList)
            Remain.sendPacket(player, new ClientboundRemoveEntitiesPacket(armorStand.getId()));

        player.removeMetadata(getUniqueId().toString(), SimplePlugin.getInstance());
        System.out.println("hiding");
    }

    @Override
    public void show(final Location location, final Player player, final String... linesOfText) {
        System.out.println("showing");

        for (final ArmorStand nmsArmorStand : this.entityLinesList) { // TODO
            final String line = nmsArmorStand.getName().getString();
            final org.bukkit.entity.ArmorStand armorStand = ReflectionUtil.invoke("getBukkitEntity", nmsArmorStand);

            System.out.println("Name: " + line);
            System.out.println("Stand: " + nmsArmorStand);

            Remain.setCustomName(armorStand, line);
            this.sendPackets(player, nmsArmorStand);
        }

        /*for (int i = 0; i < this.lines.size(); i++) {
            System.out.println("count: " + i);
            final String line = this.lines.get(i);
            final ArmorStand nmsArmorStand = this.entityLinesList.get(i);

            System.out.println("Line: " + line);
            System.out.println("Hologram: " + nmsArmorStand);

            final org.bukkit.entity.ArmorStand armorStand = ReflectionUtil.invoke("getBukkitEntity", nmsArmorStand);

            Remain.setCustomName(armorStand, line);
            this.sendPackets(player, nmsArmorStand);
        }*/

        player.setMetadata(getUniqueId().toString(), new FixedMetadataValue(SimplePlugin.getInstance(), ""));
    }

    @Override
    public void createHologram(Location location, final Player player, final String... linesOfText) {
        if (!this.entityLinesList.isEmpty()) {
            Messenger.error(player, "Hologram cannot be created.");
            return;
        }

        final World world = location.getWorld();

        if (world == null)
            return;

        System.out.println("creating");

        final Object nmsWorld = Remain.getHandleWorld(location.getWorld());

        setLines(Arrays.asList(linesOfText));

        for (final String line : linesOfText) {
            final ArmorStand nmsArmorStand = this.createEntity(nmsWorld, location);
            final org.bukkit.entity.ArmorStand armorStand = ReflectionUtil.invoke("getBukkitEntity", nmsArmorStand);

            //armorStand.setVisible(false);
            Remain.setCustomName(armorStand, line);
            this.sendPackets(player, nmsArmorStand);
            location = location.subtract(0, 0.26, 0);

            this.entityLinesList.add(nmsArmorStand);
        }

        player.setMetadata(getUniqueId().toString(), new FixedMetadataValue(SimplePlugin.getInstance(), ""));
        HologramRegistry_v1_19.getInstance().register(this);
    }

    /**
     * Return if this hologram is spawned
     *
     * @return
     */
    /*private boolean isCreated() { // TODO test this
        System.out.println("Valid: " + this.entityArmorStand.valid);
        System.out.println("Removed: " + this.entityArmorStand.isRemoved());
        System.out.println("is Dead or dying:" + this.entityArmorStand.isDeadOrDying());
        System.out.println("isNull: " + (this.entityArmorStand == null));

        return this.entityArmorStand.isRemoved();//entityArmorStand != null;
    }*/
    @Override
    public boolean isShown() { // TODO check if it works
        System.out.println("Valid: " + this.entityArmorStand.valid);
        System.out.println("Removed: " + this.entityArmorStand.isRemoved());
        System.out.println("is Dead or dying:" + this.entityArmorStand.isDeadOrDying());
        System.out.println("isNull: " + (this.entityArmorStand == null));
        System.out.println("Bukkit: " + (entityArmorStand.getBukkitEntity() != null));
        System.out.println("Bukkit valid: " + (entityArmorStand.getBukkitEntity().isValid()));

        return this.entityArmorStand.getBukkitEntity().isValid();
    }

    @Override
    public SerializedMap serialize() {
        //Valid.checkBoolean(this.isShown(), "Cannot save non-created holograms");

        return SerializedMap.ofArray(
                "Lines", this.lines,
                "Last_Location", this.getLocation());
    }

    public static NMSHologram_v1_19 deserialize(final SerializedMap map) { // TODO
        final List<String> lines = map.getStringList("Lines");
        Location lastLocation = map.getLocation("Last_Location");

        final Object nmsWorld = Remain.getHandleWorld(lastLocation.getWorld());
        final NMSHologram_v1_19 hologram = new NMSHologram_v1_19();
        final List<ArmorStand> armorStandList = new ArrayList<>();

        hologram.setLines(lines);
        hologram.setEntity(hologram.createEntity(nmsWorld, lastLocation));

        for (int i = 0; i < lines.size(); i++) {
            System.out.println(i);
            armorStandList.add(hologram.createEntity(nmsWorld, lastLocation));
            lastLocation = lastLocation.subtract(0, 0.26, 0);
        }

        hologram.setEntityList(armorStandList);

        return hologram;
    }
}