package com.alttd.easter.config;

import lombok.extern.slf4j.Slf4j;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.inventory.ItemStack;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

@Slf4j
public class Config extends AbstractConfig {

    static Config config;

    Config() {
        super(
                new File(File.separator
                         + "mnt" + File.separator
                         + "configs" + File.separator
                         + "Easter"),
                "config.yml");
    }

    public static void reload() {
        log.info("Reloading config");
        config = new Config();
        config.readConfig(Config.class, null);
    }

    public static class EGGS {
        private static final String prefix = "eggs.";
        public static double SPAWN_CHANCE = 0.02; // ~2 per night per player

        @SuppressWarnings("unused")
        private static void load() {
            SPAWN_CHANCE = config.getDouble(prefix, "spawn-chance", SPAWN_CHANCE);
        }
    }

    public static class RABBIT {
        private static final String prefix = "rabbit.";
        public static String WORLD = "world";
        public static double X = 0, Y = 64, Z = 0;
        public static float YAW = 0, PITCH = 0;
        public static double INTERACT_RADIUS = 2.5;

        @SuppressWarnings("unused")
        private static void load() {
            WORLD = config.getString(prefix, "world", WORLD);
            X = config.getDouble(prefix, "x", X);
            Y = config.getDouble(prefix, "y", Y);
            Z = config.getDouble(prefix, "z", Z);
            YAW = (float) config.getDouble(prefix, "yaw", YAW);
            PITCH = (float) config.getDouble(prefix, "pitch", PITCH);
            INTERACT_RADIUS = config.getDouble(prefix, "interact-radius", INTERACT_RADIUS);
        }

        public static Location getLocation(org.bukkit.Server server) {
            World world = server.getWorld(WORLD);
            if (world == null) {
                return null;
            }
            return new Location(world, X, Y, Z, YAW, PITCH);
        }
    }

    public static class PRIZES {
        private static final String prefix = "prizes.";
        public static List<ItemStack> LIST = new ArrayList<>();
        private static int NEXT_INDEX = 0;

        @SuppressWarnings("unused")
        private static void load() {
            List<?> raw = config.yaml.getList(prefix + "list");
            LIST = new ArrayList<>();
            if (raw != null) {
                for (Object o : raw) {
                    if (o instanceof ItemStack item) {
                        LIST.add(item);
                    }
                }
            }
            // ensure path exists
            config.yaml.addDefault(prefix + "list", LIST);
            // load next index and clamp to range
            NEXT_INDEX = config.getInt(prefix, "next-index", 0);
            if (LIST.isEmpty()) {
                NEXT_INDEX = 0;
            } else if (NEXT_INDEX < 0 || NEXT_INDEX >= LIST.size()) {
                NEXT_INDEX = NEXT_INDEX % LIST.size();
                if (NEXT_INDEX < 0) NEXT_INDEX += LIST.size();
            }
            config.yaml.addDefault(prefix + "next-index", NEXT_INDEX);
        }

        public static void addPrize(ItemStack item) {
            LIST.add(item);
            config.set(prefix, "list", LIST);
            // keep NEXT_INDEX valid
            if (NEXT_INDEX < 0 || NEXT_INDEX >= LIST.size()) {
                NEXT_INDEX = 0;
            }
            config.set(prefix, "next-index", NEXT_INDEX);
        }

        public static void setPrizeAt(int index, ItemStack item) {
            if (index < 0 || index > LIST.size()) {
                throw new IndexOutOfBoundsException("Index must be between 0 and " + LIST.size());
            }
            if (index == LIST.size()) {
                LIST.add(item);
            } else {
                LIST.set(index, item);
            }
            config.set(prefix, "list", LIST);
            // adjust NEXT_INDEX if necessary
            if (LIST.isEmpty()) {
                NEXT_INDEX = 0;
            } else if (NEXT_INDEX >= LIST.size()) {
                NEXT_INDEX = NEXT_INDEX % LIST.size();
            }
            config.set(prefix, "next-index", NEXT_INDEX);
        }

        public static ItemStack getNextPrize() {
            if (LIST.isEmpty()) {
                log.warn("[Easter] No prizes configured. Staff should configure prizes using /easter setprize.");
                return null;
            }
            if (NEXT_INDEX < 0 || NEXT_INDEX >= LIST.size()) {
                NEXT_INDEX = 0;
            }
            ItemStack prize = LIST.get(NEXT_INDEX).clone();
            NEXT_INDEX = (NEXT_INDEX + 1) % LIST.size();
            config.set(prefix, "next-index", NEXT_INDEX);
            return prize;
        }
    }
}