package com.alttd.hunger_games.config;

import com.alttd.hunger_games.data_objects.GameStage;
import lombok.extern.slf4j.Slf4j;
import org.bukkit.Location;
import org.bukkit.configuration.ConfigurationSection;

import java.io.File;
import java.time.Duration;
import java.util.*;

@Slf4j
public class Config extends AbstractConfig {

    static Config config;

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

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

    public static class SETTINGS {
        private static final String prefix = "settings.";

        @SuppressWarnings("unused")
        private static void load() {
        }
    }

    public static class ROUND {
        private static final String prefix = "round.";

        public static Duration COUNTDOWN = Duration.ofSeconds(10);
        public static Duration SAFE_PHASE = Duration.ofSeconds(30);
        public static Duration TIME_TO_FINALE = Duration.ofMinutes(5);
        public static int INITIAL_BORDER_SIZE = 5000;
        public static List<GameStage> STAGES = List.of(
                GameStage.builder().duration(Duration.ofMinutes(5)).worldBorderSize(1000).build(),
                GameStage.builder().duration(Duration.ofMinutes(5)).worldBorderSize(750).build(),
                GameStage.builder().duration(Duration.ofMinutes(5)).worldBorderSize(500).build()
                                                       );

        @SuppressWarnings("unused")
        private static void load() {
            int countdownSeconds = config.getInt(prefix, "countdown-seconds", Math.toIntExact(COUNTDOWN.toSeconds()));
            COUNTDOWN = Duration.ofSeconds(countdownSeconds);
            int safePhaseSeconds = config.getInt(prefix, "safe-phase-seconds", Math.toIntExact(SAFE_PHASE.toSeconds()));
            SAFE_PHASE = Duration.ofSeconds(safePhaseSeconds);
            int killPhaseSeconds = config.getInt(prefix, "time-to-finale-seconds", Math.toIntExact(TIME_TO_FINALE.toSeconds()));
            TIME_TO_FINALE = Duration.ofSeconds(killPhaseSeconds);
            INITIAL_BORDER_SIZE = config.getInt(prefix, "initial-border-size", INITIAL_BORDER_SIZE);

            ConfigurationSection configurationSection = config.getConfigurationSection(prefix + "stages");
            if (configurationSection == null) {
                configurationSection = config.createSection(prefix + "stages");
            }
            Set<String> keys = configurationSection.getKeys(false);
            STAGES = getGameStages(keys, configurationSection);
        }

        private static List<GameStage> getGameStages(Set<String> keys, ConfigurationSection configurationSection) {
            if (keys.isEmpty()) {
                int key = 0;
                for (GameStage stage : STAGES) {
                    ConfigurationSection section = configurationSection.createSection(String.valueOf(key++));
                    section.set("duration-seconds", stage.getDuration().toSeconds());
                    section.set("world-border-size", stage.getWorldBorderSize());
                }
                return STAGES;
            }
            List<GameStage> gameStageList = new ArrayList<>();

            for (String key : keys) {
                ConfigurationSection section = configurationSection.getConfigurationSection(key);
                if (section == null) {
                    throw new IllegalStateException("Stage section is null for key [" + key + "] but is in the list of retrieved keys");
                }
                if (!section.contains("duration-seconds")) {
                    log.error("Missing duration-seconds in stage {}.", key);
                    continue;
                }
                if (!section.contains("world-border-size")) {
                    log.error("Missing world-border-size in stage {}.", key);
                    continue;
                }
                int durationSeconds = section.getInt("duration-seconds");
                int worldBorderSize = section.getInt("world-border-size");
                gameStageList.add(GameStage.builder()
                        .duration(Duration.ofSeconds(durationSeconds))
                        .worldBorderSize(worldBorderSize)
                        .build());
            }
            return gameStageList;
        }
    }

    public static class DESTINATION {
        private static final String prefix = "destination.";
        public static Location START_CENTER = null;
        public static int START_RADIUS = 15;
        public static Location FINALE_CENTER = null;
        public static int FINALE_RADIUS = 10;
        public static Location SPECTATOR_AREA = null;

        public static int STUCK_MIN_HEIGHT = 64;
        public static int STUCK_FIREWORK_COUNT = 3;
        public static Duration STUCK_COOLDOWN = Duration.ofMinutes(2);
        public static Duration STUCK_WARMUP = Duration.ofSeconds(5);

        @SuppressWarnings("unused")
        private static void load() {
            Config.DESTINATION.START_RADIUS = config.getInt(prefix, "start-radius", START_RADIUS);
            config.getLocation(prefix, "start-center")
                    .ifPresent(location -> DESTINATION.START_CENTER = location);

            config.getLocation(prefix, "spectator-area")
                    .ifPresent(location -> DESTINATION.SPECTATOR_AREA = location);

            DESTINATION.FINALE_RADIUS = config.getInt(prefix, "finale-radius", FINALE_RADIUS);
            config.getLocation(prefix, "finale-center")
                    .ifPresent(location -> DESTINATION.FINALE_CENTER = location);

            STUCK_MIN_HEIGHT = config.getInt(prefix, "stuck-min-height", STUCK_MIN_HEIGHT);
            STUCK_FIREWORK_COUNT = config.getInt(prefix, "stuck-firework-count", STUCK_FIREWORK_COUNT);
            STUCK_COOLDOWN = Duration.ofSeconds(config.getInt(prefix, "stuck-cooldown-seconds", (int) STUCK_COOLDOWN.toSeconds()));
            STUCK_WARMUP = Duration.ofSeconds(config.getInt(prefix, "stuck-warmup-seconds", (int) STUCK_WARMUP.toSeconds()));
        }
    }

    public static class COMMAND_WHITELIST {
        private static final String prefix = "command-whitelist";

        public static final List<String> PREFIXES = new ArrayList<>(List.of("msg", "ac", "gac", "tell", "r", "server", "lobby", "hub", "bayou", "creative", "hg", "lp"));

        @SuppressWarnings("unused")
        private static void load() {
            List<String> stringList = config.getStringList(prefix, "prefix-list", PREFIXES);
            PREFIXES.clear();
            PREFIXES.addAll(stringList);
        }
    }
}