package com.eu.habbo.habbohotel.items.interactions.wired.effects;

import com.eu.habbo.Emulator;
import com.eu.habbo.habbohotel.gameclients.GameClient;
import com.eu.habbo.habbohotel.items.Item;
import com.eu.habbo.habbohotel.items.interactions.InteractionWiredEffect;
import com.eu.habbo.habbohotel.rooms.*;
import com.eu.habbo.habbohotel.users.Habbo;
import com.eu.habbo.habbohotel.users.HabboItem;
import com.eu.habbo.habbohotel.wired.WiredEffectType;
import com.eu.habbo.habbohotel.wired.WiredHandler;
import com.eu.habbo.habbohotel.wired.WiredTriggerType;
import com.eu.habbo.messages.ClientMessage;
import com.eu.habbo.messages.ServerMessage;
import com.eu.habbo.messages.incoming.wired.WiredSaveException;
import com.eu.habbo.messages.outgoing.rooms.items.FloorItemOnRollerComposer;
import gnu.trove.set.hash.THashSet;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.stream.Collectors;

public class WiredEffectMoveFurniAway extends InteractionWiredEffect {
    public static final WiredEffectType type = WiredEffectType.FLEE;

    private THashSet<HabboItem> items = new THashSet<>();

    public WiredEffectMoveFurniAway(ResultSet set, Item baseItem) throws SQLException {
        super(set, baseItem);
    }

    public WiredEffectMoveFurniAway(int id, int userId, Item item, String extradata, int limitedStack, int limitedSells) {
        super(id, userId, item, extradata, limitedStack, limitedSells);
    }

    @Override
    public boolean execute(RoomUnit roomUnit, Room room, Object[] stuff) {
        THashSet<HabboItem> items = new THashSet<>();

        for (HabboItem item : this.items) {
            if (item.getRoomId() == 0)
                items.add(item);
        }

        this.items.removeAll(items);

        for (HabboItem item : this.items) {
            RoomTile t = room.getLayout().getTile(item.getX(), item.getY());

            RoomUnit target = room.getRoomUnits().stream().min(Comparator.comparingDouble(a -> a.getCurrentLocation().distance(t))).orElse(null);

            if (target != null) {
                if (target.getCurrentLocation().distance(t) <= 1) {
                    Emulator.getThreading().run(() -> WiredHandler.handle(WiredTriggerType.COLLISION, target, room, new Object[]{item}), 500);
                    continue;
                }

                int x = 0;
                int y = 0;

                if (target.getX() == item.getX()) {
                    if (item.getY() < target.getY())
                        y--;
                    else
                        y++;
                } else if (target.getY() == item.getY()) {
                    if (item.getX() < target.getX())
                        x--;
                    else
                        x++;
                } else if (target.getX() - item.getX() > target.getY() - item.getY()) {
                    if (target.getX() - item.getX() > 0)
                        x--;
                    else
                        x++;
                } else {
                    if (target.getY() - item.getY() > 0)
                        y--;
                    else
                        y++;
                }

                RoomTile newLocation = room.getLayout().getTile((short) (item.getX() + x), (short) (item.getY() + y));
                RoomTile oldLocation = room.getLayout().getTile(item.getX(), item.getY());
                double oldZ = item.getZ();

                if(newLocation != null && newLocation.state != RoomTileState.INVALID && newLocation != oldLocation && room.furnitureFitsAt(newLocation, item, item.getRotation(), true) == FurnitureMovementError.NONE) {
                    if(room.moveFurniTo(item, newLocation, item.getRotation(), null, false) == FurnitureMovementError.NONE) {
                        room.sendComposer(new FloorItemOnRollerComposer(item, null, oldLocation, oldZ, newLocation, item.getZ(), 0, room).compose());
                    }
                }
            }
        }
        return true;
    }

    @Override
    public String getWiredData() {
        return WiredHandler.getGsonBuilder().create().toJson(new JsonData(
                this.getDelay(),
                this.items.stream().map(HabboItem::getId).collect(Collectors.toList()))
        );
    }

    @Override
    public void loadWiredData(ResultSet set, Room room) throws SQLException {
        this.items = new THashSet<>();
        String wiredData = set.getString("wired_data");

        if (wiredData.startsWith("{")) {
            JsonData data = WiredHandler.getGsonBuilder().create().fromJson(wiredData, JsonData.class);
            this.setDelay(data.delay);
            for (Integer id: data.itemIds) {
                HabboItem item = room.getHabboItem(id);
                if (item != null) {
                    this.items.add(item);
                }
            }
        } else {
            String[] wiredDataOld = wiredData.split("\t");

            if (wiredDataOld.length >= 1) {
                this.setDelay(Integer.parseInt(wiredDataOld[0]));
            }
            if (wiredDataOld.length == 2) {
                if (wiredDataOld[1].contains(";")) {
                    for (String s : wiredDataOld[1].split(";")) {
                        HabboItem item = room.getHabboItem(Integer.parseInt(s));

                        if (item != null)
                            this.items.add(item);
                    }
                }
            }
        }
    }

    @Override
    public void onPickUp() {
        this.items.clear();
        this.setDelay(0);
    }

    @Override
    public WiredEffectType getType() {
        return type;
    }

    @Override
    public void serializeWiredData(ServerMessage message, Room room) {
        THashSet<HabboItem> items = new THashSet<>();

        for (HabboItem item : this.items) {
            if (item.getRoomId() != this.getRoomId() || Emulator.getGameEnvironment().getRoomManager().getRoom(this.getRoomId()).getHabboItem(item.getId()) == null)
                items.add(item);
        }

        for (HabboItem item : items) {
            this.items.remove(item);
        }
        message.appendBoolean(false);
        message.appendInt(WiredHandler.MAXIMUM_FURNI_SELECTION);
        message.appendInt(this.items.size());
        for (HabboItem item : this.items)
            message.appendInt(item.getId());

        message.appendInt(this.getBaseItem().getSpriteId());
        message.appendInt(this.getId());
        message.appendString("");
        message.appendInt(0);
        message.appendInt(0);
        message.appendInt(this.getType().code);
        message.appendInt(this.getDelay());
        message.appendInt(0);
    }

    @Override
    public boolean saveData(ClientMessage packet, GameClient gameClient) throws WiredSaveException {
        packet.readInt();
        packet.readString();
        int itemsCount = packet.readInt();

        if(itemsCount > Emulator.getConfig().getInt("hotel.wired.furni.selection.count")) {
            throw new WiredSaveException("Too many furni selected");
        }

        List<HabboItem> newItems = new ArrayList<>();

        for (int i = 0; i < itemsCount; i++) {
            int itemId = packet.readInt();
            HabboItem it = Emulator.getGameEnvironment().getRoomManager().getRoom(this.getRoomId()).getHabboItem(itemId);

            if(it == null)
                throw new WiredSaveException(String.format("Item %s not found", itemId));

            newItems.add(it);
        }

        int delay = packet.readInt();

        if(delay > Emulator.getConfig().getInt("hotel.wired.max_delay", 20))
            throw new WiredSaveException("Delay too long");

        this.items.clear();
        this.items.addAll(newItems);
        this.setDelay(delay);

        return true;
    }

    @Override
    protected long requiredCooldown() {
        return 495;
    }

    static class JsonData {
        int delay;
        List<Integer> itemIds;

        public JsonData(int delay, List<Integer> itemIds) {
            this.delay = delay;
            this.itemIds = itemIds;
        }
    }
}