NucleusBank.java

/*
 * This file is part of NucleusFramework for Bukkit, licensed under the MIT License (MIT).
 *
 * Copyright (c) JCThePants (www.jcwhatever.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.jcwhatever.nucleus.internal.providers.economy;

import com.jcwhatever.nucleus.providers.economy.IAccount;
import com.jcwhatever.nucleus.providers.economy.IBank;
import com.jcwhatever.nucleus.providers.economy.ICurrency;
import com.jcwhatever.nucleus.storage.IDataNode;
import com.jcwhatever.nucleus.utils.PreCon;
import com.jcwhatever.nucleus.utils.observer.future.FutureAgent;
import com.jcwhatever.nucleus.utils.observer.future.IFuture;
import com.jcwhatever.nucleus.utils.text.TextUtils;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import javax.annotation.Nullable;

/**
 * NucleusFramework bank
 */
class NucleusBank implements IBank {

    private final String _name;
    private final UUID _ownerId;
    private final IDataNode _dataNode;
    private final Map<UUID, IAccount> _accounts = new HashMap<>(5);
    private final NucleusEconomyProvider _provider;

    private double _balance;

    NucleusBank(NucleusEconomyProvider provider, String name,
                @Nullable UUID ownerId, IDataNode dataNode) {
        _name = name;
        _ownerId = ownerId;
        _dataNode = dataNode;
        _provider = provider;
    }

    public IDataNode getDataNode() {
        return _dataNode;
    }

    public NucleusEconomyProvider getProvider() {
        return _provider;
    }

    @Override
    public String getName() {
        return _name;
    }

    @Nullable
    @Override
    public UUID getOwnerId() {
        return _ownerId;
    }

    @Override
    public synchronized double getBalance() {
        return _balance;
    }

    @Override
    public double getBalance(ICurrency currency) {
        return currency.getConversionFactor() * _balance;
    }

    synchronized void incrementBalance(double amount) {
        _balance += amount;
    }

    @Override
    public synchronized boolean hasAccount(UUID playerId) {
        PreCon.notNull(playerId);

        return _accounts.containsKey(playerId);
    }

    @Nullable
    @Override
    public synchronized IAccount getAccount(UUID playerId) {
        PreCon.notNull(playerId);

        return _accounts.get(playerId);
    }

    @Nullable
    @Override
    public synchronized IAccount createAccount(UUID playerId) {
        PreCon.notNull(playerId);

        if (hasAccount(playerId))
            return null;

        NucleusAccount account = new NucleusAccount(
                _provider, playerId, this, _dataNode.getNode(playerId.toString()));

        _accounts.put(playerId, account);

        return account;
    }

    @Override
    public synchronized IFuture deleteAccount(UUID playerId) {
        PreCon.notNull(playerId);

        IAccount account = _accounts.remove(playerId);
        if (account == null)
            return new FutureAgent().error("Account not found");

        _balance -= account.getBalance();

        IDataNode node = _dataNode.getNode(playerId.toString());
        node.remove();
        node.save();

        return new FutureAgent().success("Account deleted.");
    }

    @Override
    public Object getHandle() {
        return this;
    }

    private void loadAccounts() {
        for (IDataNode dataNode : _dataNode) {

            UUID playerId = TextUtils.parseUUID(dataNode.getName());
            if (playerId == null)
                continue;

            NucleusAccount account = new NucleusAccount(
                    _provider, playerId, this, dataNode);

            _balance += account.getBalance();

            _accounts.put(playerId, account);
        }
    }

    @Override
    public int hashCode() {
        return _name.hashCode();
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof NucleusBank) {
            NucleusBank bank = (NucleusBank)obj;

            return bank._name.equals(_name);
        }
        return false;
    }
}