Arakne / Araknemu

 * This file is part of Araknemu.

 *

 * Araknemu is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * Araknemu is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with Araknemu.  If not, see <https://www.gnu.org/licenses/>.

 *

 * Copyright (c) 2017-2019 Vincent Quatrevieux

 */

package fr.quatrevieux.araknemu.game.exploration.npc.dialog.action.exchange;

import fr.quatrevieux.araknemu.data.world.entity.environment.npc.ResponseAction;

import fr.quatrevieux.araknemu.game.account.bank.Bank;

import fr.quatrevieux.araknemu.game.account.bank.BankService;

import fr.quatrevieux.araknemu.game.exploration.ExplorationPlayer;

import fr.quatrevieux.araknemu.game.exploration.npc.dialog.action.Action;

import fr.quatrevieux.araknemu.game.exploration.npc.dialog.action.ActionFactory;

import fr.quatrevieux.araknemu.network.game.out.info.Information;

import fr.quatrevieux.araknemu.network.out.ServerMessage;

import fr.quatrevieux.araknemu.util.Asserter;

/**

 * Action for open the bank

 */

public final class OpenBank implements Action {

    private final BankService service;

    public OpenBank(BankService service) {

        this.service = service;

    }

    @Override

    public boolean check(ExplorationPlayer player) {

        // Always true ?

        return true;

    }

    @Override

    public void apply(ExplorationPlayer player) {

        final Bank bank = service.load(player.account());

        if (payBankTax(player, bank)) {

            player.interactions().start(bank.exchange(player).dialog());

        }

    }

    /**

     * Try to pay the bank tax

     *

     * Check, in order, if has enough kamas :

     * - The player

     * - The bank

     * - The bank + player kamas

     *

     * Send information message when payed

     *

     * @return True on success, or false if there not enough kamas

     */

    private boolean payBankTax(ExplorationPlayer player, Bank bank) {

        final long cost = bank.cost();

        if (cost == 0) {

            return true;

        }

        if (player.inventory().kamas() >= cost) {

            player.inventory().removeKamas(cost);

            player.send(Information.bankTaxPayed(cost));

            return true;

        }

        if (bank.kamas() >= cost) {

            bank.removeKamas(cost);

            return true;

        }

        if (player.inventory().kamas() + bank.kamas() < cost) {

            player.send(ServerMessage.notEnoughKamasForBank(cost));

            return false;

        }

        final long payedByPlayer = cost - bank.kamas();

        bank.removeKamas(Asserter.castPositive(bank.kamas()));

        player.inventory().removeKamas(payedByPlayer);

        player.send(Information.bankTaxPayed(payedByPlayer));

        return true;

    }

    }

}