package me.lethunderhawk.fluxapi.npc;

import me.lethunderhawk.fluxapi.FluxService;
import me.lethunderhawk.fluxapi.npc.abstraction.DummyNPC;
import me.lethunderhawk.fluxapi.npc.abstraction.NPCLocation;
import me.lethunderhawk.fluxapi.npc.abstraction.NPCOptions;
import me.lethunderhawk.fluxapi.npc.command.NPCCommand;
import me.lethunderhawk.fluxapi.npc.listener.NPCListener;
import me.lethunderhawk.fluxapi.npc.listener.WorldLoadListener;
import me.lethunderhawk.fluxapi.npc.manager.NPCManager;
import me.lethunderhawk.fluxapi.npc.registry.NPCRegistry;
import me.lethunderhawk.fluxapi.util.config.ConfigLoader;
import me.lethunderhawk.fluxapi.util.interfaces.BazaarFluxModule;
import org.bukkit.Bukkit;
import org.bukkit.configuration.serialization.ConfigurationSerialization;
import org.bukkit.event.HandlerList;
import org.bukkit.plugin.java.JavaPlugin;

public final class NPCModule extends BazaarFluxModule {
    private final String saveLocation = "/npc/npcs.yml";
    private NPCManager npcManager;
    private NPCListener listener;
    private WorldLoadListener worldLoadListener;
    public NPCModule(JavaPlugin plugin) {
        super(plugin);
    }

    public String getPrefix() {
        return "[NPC]";
    }

    @Override
    public void onEnable() {
        FluxService.registerModule(NPCModule.class, this);

        registerBaseNPCSerializables();
        if(NPCRegistry.isRegistered()){
            finalizeRegistration();
        }else{
            printWaitingNotif();
        }
        registerListeners();


        NPCCommand npcCommand = new NPCCommand(this);
        plugin.getCommand("npc").setExecutor(npcCommand);
        plugin.getCommand("npc").setTabCompleter(npcCommand);
    }

    private void registerListeners() {
        this.listener = new NPCListener();
        plugin.getServer().getPluginManager().registerEvents(listener, plugin);
        this.worldLoadListener = new WorldLoadListener();
        plugin.getServer().getPluginManager().registerEvents(worldLoadListener, plugin);
    }

    private void printWaitingNotif() {
        Bukkit.getLogger().info("FluxAPI enabled. Waiting for NPC registration...");
    }

    private void registerBaseNPCSerializables() {
        ConfigurationSerialization.registerClass(NPCOptions.class);
        ConfigurationSerialization.registerClass(NPCManager.class);
        ConfigurationSerialization.registerClass(DummyNPC.class);
        ConfigurationSerialization.registerClass(NPCLocation.class);
    }

    public void finalizeRegistration() {
        this.npcManager = FluxService.get(ConfigLoader.class).loadObject(
                saveLocation,
                "manager",
                NPCManager.class
        );

        if(npcManager == null) {
            npcManager = new NPCManager();
        }

        FluxService.register(NPCManager.class, npcManager);
        npcManager.initializeSpawning();
        plugin.getLogger().info("NPC Extension Enabled and fully registered!");
    }

    @Override
    public void onDisable() {
        if(npcManager != null) {
            npcManager.saveNPCsToFile(saveLocation);
            npcManager.deleteAllNpcEntities();
        }
        unregisterListeners();

        FluxService.unregister(NPCManager.class);

        npcManager = null;
    }

    private void unregisterListeners() {
        HandlerList.unregisterAll(listener);
        listener = null;
        HandlerList.unregisterAll(worldLoadListener);
        worldLoadListener = null;
    }
}