package com.vinlanx.explosionoverhaul;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.reflect.TypeToken;
import com.mojang.logging.LogUtils;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.Reader;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.minecraft.core.particles.BlockParticleOption;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundSource;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.phys.Vec3;
import net.neoforged.bus.api.IEventBus;
import net.neoforged.fml.ModContainer;
import net.neoforged.fml.common.Mod;
import net.neoforged.fml.config.ModConfig;
import net.neoforged.fml.event.lifecycle.FMLCommonSetupEvent;
import org.slf4j.Logger;

@Mod(ExplosionOverhaul.MODID)
public class ExplosionOverhaul {
    public static final String MODID = "explosionoverhaul";
    public static final Logger LOGGER = LogUtils.getLogger();

    private static final Map<String, ExplosionSourceMode> SOURCE_MODES = new HashMap<>();
    private static final List<String> EXPLOSION_BLACKLIST = new ArrayList<>();
    private static final List<String> DEFAULT_BLACKLIST = List.of(
            "ancient_elements:block_of_raw_infernal_ore",
            "ancient_elements:celestium_ore",
            "ancient_elements:deepslate_frost_ore",
            "ancient_elements:deepslate_jungle_steel_ore",
            "ancient_elements:deepslate_lead_ore",
            "ancient_elements:deepslate_steel_ore",
            "ancient_elements:deepslate_tin_ore",
            "ancient_elements:deepslate_titanium_ore",
            "ancient_elements:ender_steel_ore",
            "ancient_elements:endrium_ore",
            "ancient_elements:frost_ore",
            "ancient_elements:infernal_ore",
            "ancient_elements:jungle_steel_ore",
            "ancient_elements:lead_ore",
            "ancient_elements:meteorite_ore",
            "ancient_elements:nether_steel_ore",
            "ancient_elements:palladium_ore",
            "ancient_elements:spectrillium_ore",
            "ancient_elements:steel_ore",
            "ancient_elements:tin_ore",
            "ancient_elements:titanium_ore",
            "ancient_elements:void_steel_ore",
            "mofus_better_end_:void_portal_block",
            "mofus_better_end_:void_portal_igniter",
            "mofus_better_end_:star_portal");
    private static final Path CONFIG_DIR = Paths.get("config", "explosionoverhaul");
    private static final Path BLACKLIST_JSON = CONFIG_DIR.resolve("DestroyingBlacklist.json");
    private static final Path SOURCE_MODES_JSON = CONFIG_DIR.resolve("ExplosionSourceBlacklist.json");

    public ExplosionOverhaul(IEventBus modEventBus, ModContainer modContainer) {
        modContainer.registerConfig(ModConfig.Type.COMMON, Config.COMMON_SPEC, "explosionoverhaul/explosionoverhaul-common.toml");
        modContainer.registerConfig(ModConfig.Type.CLIENT, Config.CLIENT_SPEC, "explosionoverhaul/explosionoverhaul-client.toml");
        ModSounds.register(modEventBus);
        ModParticles.register(modEventBus);
        ModBlocks.register(modEventBus);
        ModItems.register(modEventBus);
        ModBlockEntities.register(modEventBus);
        ModCreativeTabs.register(modEventBus);
        modEventBus.addListener(this::commonSetup);
    }

    private void commonSetup(FMLCommonSetupEvent event) {
        event.enqueueWork(() -> {
            ensureConfigDirectory();
            loadBlacklistFromJson();
            loadSourceModesFromJson();
            PacketHandler.register();
        });
    }

    private static void ensureConfigDirectory() {
        try {
            Files.createDirectories(CONFIG_DIR);
        } catch (Exception e) {
            LOGGER.warn("Failed to create config/explosionoverhaul directory", e);
        }
    }

    private static void loadBlacklistFromJson() {
        ensureConfigDirectory();
        Gson gson = new GsonBuilder().setPrettyPrinting().create();
        try {
            if (!Files.exists(BLACKLIST_JSON)) {
                try (BufferedWriter writer = Files.newBufferedWriter(BLACKLIST_JSON)) {
                    gson.toJson(DEFAULT_BLACKLIST, writer);
                }
                EXPLOSION_BLACKLIST.clear();
                EXPLOSION_BLACKLIST.addAll(DEFAULT_BLACKLIST);
                return;
            }
            try (BufferedReader reader = Files.newBufferedReader(BLACKLIST_JSON)) {
                List<String> list = gson.fromJson((Reader) reader, new TypeToken<List<String>>() {}.getType());
                EXPLOSION_BLACKLIST.clear();
                EXPLOSION_BLACKLIST.addAll(list == null ? DEFAULT_BLACKLIST : list);
            }
        } catch (Exception e) {
            LOGGER.warn("Failed to load DestroyingBlacklist.json, falling back to defaults", e);
            EXPLOSION_BLACKLIST.clear();
            EXPLOSION_BLACKLIST.addAll(DEFAULT_BLACKLIST);
        }
    }

    private static void loadSourceModesFromJson() {
        ensureConfigDirectory();
        Gson gson = new GsonBuilder().setPrettyPrinting().create();
        try {
            if (!Files.exists(SOURCE_MODES_JSON)) {
                try (BufferedWriter writer = Files.newBufferedWriter(SOURCE_MODES_JSON)) {
                    gson.toJson(SOURCE_MODES, writer);
                }
                return;
            }
            try (BufferedReader reader = Files.newBufferedReader(SOURCE_MODES_JSON)) {
                Map<String, ExplosionSourceMode> modes =
                        gson.fromJson((Reader) reader, new TypeToken<Map<String, ExplosionSourceMode>>() {}.getType());
                SOURCE_MODES.clear();
                if (modes != null) {
                    SOURCE_MODES.putAll(modes);
                }
            }
        } catch (Exception e) {
            LOGGER.warn("Failed to load ExplosionSourceBlacklist.json", e);
        }
    }

    public static ExplosionSourceMode getSourceMode(String id) {
        return SOURCE_MODES.getOrDefault(id, ExplosionSourceMode.DEFAULT);
    }

    public static Map<String, ExplosionSourceMode> getSourceModes() {
        return new HashMap<>(SOURCE_MODES);
    }

    public static void setSourceModes(Map<String, ExplosionSourceMode> modes) {
        SOURCE_MODES.clear();
        SOURCE_MODES.putAll(modes);
        writeJson(SOURCE_MODES_JSON, SOURCE_MODES);
    }

    public static List<String> getExplosionBlacklistList() {
        return new ArrayList<>(EXPLOSION_BLACKLIST);
    }

    public static List<String> getDefaultExplosionBlacklist() {
        return new ArrayList<>(DEFAULT_BLACKLIST);
    }

    public static void setExplosionBlacklistFromList(List<String> list) {
        EXPLOSION_BLACKLIST.clear();
        for (String entry : list) {
            if (entry != null && !entry.isBlank()) {
                EXPLOSION_BLACKLIST.add(entry.trim());
            }
        }
        writeJson(BLACKLIST_JSON, EXPLOSION_BLACKLIST);
    }

    private static void writeJson(Path path, Object value) {
        ensureConfigDirectory();
        try (BufferedWriter writer = Files.newBufferedWriter(path)) {
            new GsonBuilder().setPrettyPrinting().create().toJson(value, writer);
        } catch (Exception e) {
            LOGGER.warn("Failed to save {}", path, e);
        }
    }

    public static boolean isBlockBlacklisted(Block block) {
        ResourceLocation blockId = BuiltInRegistries.BLOCK.getKey(block);
        return blockId != null && EXPLOSION_BLACKLIST.contains(blockId.toString());
    }

    public static boolean isBlockStateBlacklisted(BlockState state) {
        return isBlockBlacklisted(state.getBlock());
    }

    public static void addDelayedSound(ServerPlayer player, SoundEvent sound, SoundSource source, float x, float y, float z, float volume, float pitch, long seed, long delayTicks) {
    }

    public static void addDelayedParticle(ServerLevel level, BlockParticleOption particleOption, double x, double y, double z, int count, double dx, double dy, double dz, double speed, long delayTicks, long durationTicks) {
    }

    public enum ExplosionSourceMode {
        DEFAULT,
        VANILLA,
        NO_DESTRUCTION,
        NO_DESTRUCTION_GLASSWORKS
    }

    public static class CaveEffects {
        public static void spawnFallingBlocksAndDust(ServerLevel level, Vec3 explosionPos, ServerPlayer player, float power, long initialDelayTicks) {
        }
    }
}