package dev.efnilite.vilib;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import dev.efnilite.vilib.command.ViCommand;
import dev.efnilite.vilib.util.Version;
import org.bukkit.Bukkit;
import org.bukkit.event.HandlerList;
import org.bukkit.event.Listener;
import org.bukkit.plugin.java.JavaPlugin;

/**
 * Main class which plugins may inherit to reduce the amount of setup required.
 * Classes inheriting this may want to create static methods to inherit the logging and ViPlugin vars.
 * Made by Efnilite, 2021-2023
 *
 * @since 1.0.0
 */
public abstract class ViPlugin extends JavaPlugin {

    protected static Gson gson;
    protected static Version version;

    /**
     * @return a Gson instance which has already been set up.
     */
    public static Gson getGson() {
        return gson;
    }

    /**
     * @return The version.
     */
    public static Version getVersion() {
        return version;
    }

    @Override
    public void onEnable() {
        version = Version.getVersion();

        gson = new GsonBuilder().excludeFieldsWithoutExposeAnnotation().disableHtmlEscaping().create();

        enable();
    }

    @Override
    public void onDisable() {
        disable();

        HandlerList.unregisterAll(this);
        Bukkit.getScheduler().cancelTasks(this);
    }

    /**
     * What happens on enable of the plugin inheriting this library.
     */
    public abstract void enable();

    /**
     * What happens on disable of the plugin inheriting this library.
     * Disabling will automatically cancel all active tasks and unregister all EventWatchers.
     */
    public abstract void disable();

    /**
     * Register a command to this plugin.
     *
     * @param name    The name of the command in plugin.yml
     * @param command The command class
     */
    public void registerCommand(String name, ViCommand command) {
        var cmd = getCommand(name);

        if (cmd == null) return;

        cmd.setExecutor(command);
        cmd.setTabCompleter(command);
    }

    /**
     * Registers a Listener, with this plugin as its owner.
     *
     * @param listener The listener to register.
     * @see dev.efnilite.vilib.event.EventWatcher
     */
    public void registerListener(Listener listener) {
        getServer().getPluginManager().registerEvents(listener, this);
    }
}