CraftBank/src/main/java/com/craftbank/hooks/CraftBankExpansion.java

package com.craftbank.hooks;

import com.craftbank.CraftBank;
import com.craftbank.model.PlayerAccount;
import me.clip.placeholderapi.expansion.PlaceholderExpansion;
import org.bukkit.OfflinePlayer;
import org.jetbrains.annotations.NotNull;

/**
 * PlaceholderAPI 扩展, 提供:
 * <ul>
 *   <li>%craftbank_cash% —— 现金余额</li>
 *   <li>%craftbank_bank_saving% —— 活期余额</li>
 *   <li>%craftbank_cash_formatted% —— 带货币符号的现金</li>
 *   <li>%craftbank_bank_saving_formatted% —— 带货币符号的活期</li>
 * </ul>
 */
public class CraftBankExpansion extends PlaceholderExpansion {

    private final CraftBank plugin;

    public CraftBankExpansion(CraftBank plugin) {
        this.plugin = plugin;
    }

    @Override
    public @NotNull String getIdentifier() {
        return "craftbank";
    }

    @Override
    public @NotNull String getAuthor() {
        return "CraftBank";
    }

    @Override
    public @NotNull String getVersion() {
        return plugin.getDescription().getVersion();
    }

    @Override
    public boolean persist() {
        return true;
    }

    @Override
    public String onRequest(OfflinePlayer player, @NotNull String params) {
        if (player == null) {
            return "";
        }
        // 占位符在主线程被解析: 仅读取已缓存数据, 不触发阻塞式数据库查询。
        PlayerAccount account = plugin.getEconomyManager().getCached(player.getUniqueId());
        double cash = account != null ? account.getCash() : 0.0;
        double saving = account != null ? account.getBankSaving() : 0.0;

        return switch (params.toLowerCase()) {
            case "cash" -> plugin.getEconomyManager().formatNumber(cash);
            case "cash_formatted" -> plugin.getEconomyManager().format(cash);
            case "bank_saving" -> plugin.getEconomyManager().formatNumber(saving);
            case "bank_saving_formatted" -> plugin.getEconomyManager().format(saving);
            default -> null;
        };
    }
}