PlayerShops/src/main/java/com/alttd/playershops/PlayerShops.java

package com.alttd.playershops;

import com.alttd.playershops.commands.PlayerShopCommands;
import com.alttd.playershops.config.Config;
import com.alttd.playershops.config.DatabaseConfig;
import com.alttd.playershops.config.MessageConfig;
import com.alttd.playershops.gui.GuiIcon;
import com.alttd.playershops.handler.ShopHandler;
import com.alttd.playershops.listener.*;
import com.alttd.playershops.shop.ShopType;
import com.alttd.playershops.storage.database.DatabaseManager;
import com.alttd.playershops.storage.database.DatabaseHelper;
import lombok.Getter;
import net.milkbowl.vault.economy.Economy;
import org.bukkit.Bukkit;
import org.bukkit.plugin.RegisteredServiceProvider;
import org.bukkit.plugin.java.JavaPlugin;

public class PlayerShops extends JavaPlugin {

    @Getter
    private static PlayerShops instance;
    @Getter
    private Economy econ = null;
    @Getter
    private ShopHandler shopHandler;
    @Getter
    private DatabaseManager databaseManager;
    @Getter
    private DatabaseHelper databaseHelper;
    private ShopListener shopListener;
    private PlayerListener playerListener;
    private TransactionListener transactionListener;
    private InventoryListener inventoryListener;
    private GriefPreventionListener griefPreventionListener;

    public void onEnable() {
        instance = this;
        if(!setupEconomy()) {
            Bukkit.getLogger().warning("Error loading Vault and economy.\n Disabling plugin");
            this.setEnabled(false);
            return;
        }
        Bukkit.getLogger().info("Hooked into Vault economy provided by " + econ.getName());
        reloadConfigs();
        if(!setupDatabase()) {
            Bukkit.getLogger().warning("Error setting up database connection.\n Disabling plugin");
            this.setEnabled(false);
            return;
        }

        shopHandler = new ShopHandler(instance);

        registerListeners();
        registerCommands();
    }

    public void onDisable() {
        shopHandler.unloadShops();
        unRegisterListeners();
        Bukkit.getScheduler().cancelTasks(this);

        databaseManager.unload();
    }

    private boolean setupEconomy() {
        if (getServer().getPluginManager().getPlugin("Vault") == null) {
            return false;
        }
        RegisteredServiceProvider<Economy> rsp = getServer().getServicesManager().getRegistration(Economy.class);
        if (rsp == null) {
            return false;
        }
        econ = rsp.getProvider();
        return true;
    }

    private boolean setupDatabase() {
        this.databaseManager = new DatabaseManager(this);
        this.databaseHelper = new DatabaseHelper(this, this.databaseManager);
        this.databaseHelper.init();
        return true;
    }

    public Economy getEconomy() {
        if(econ == null)
            setupEconomy();
        return econ;
    }

    private void registerListeners() {
        shopListener = new ShopListener(this);
        playerListener = new PlayerListener(this);
        transactionListener = new TransactionListener(this);
        inventoryListener = new InventoryListener(this);
        griefPreventionListener = new GriefPreventionListener(this); // TODO hook into GP
    }

    private void unRegisterListeners() {
        shopListener.unregister();
        playerListener.unregister();
        transactionListener.unregister();
        inventoryListener.unregister();
    }

    private void registerCommands() {
        PlayerShopCommands.registerCommands();
    }

    public void reloadConfigs() {
        Config.reload();
        MessageConfig.reload();
        DatabaseConfig.reload();

        for (ShopType shopType : ShopType.values()) {
            // preload ShopType to get the configs active
        }
        for (GuiIcon guiIcon : GuiIcon.values()) {
            // preload to get config values generated
        }
    }

}