Yuri Kuznetsov
143 lines
3.6 KiB
PHP
143 lines
3.6 KiB
PHP
<?php
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/************************************************************************
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* This file is part of EspoCRM.
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*
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* EspoCRM - Open Source CRM application.
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* Copyright (C) 2014-2021 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
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* Website: https://www.espocrm.com
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*
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* EspoCRM is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* EspoCRM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
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************************************************************************/
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namespace Espo\Core\Fields;
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use RuntimeException;
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/**
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* A currency value object. Immutable.
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*/
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class Currency
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{
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private $amount;
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private $code;
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public function __construct(float $amount, string $code)
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{
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if (strlen($code) !== 3) {
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throw new RuntimeException("Bad currency code.");
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}
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$this->amount = $amount;
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$this->code = $code;
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}
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/**
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* Get an amount.
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*/
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public function getAmount(): float
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{
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return $this->amount;
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}
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/**
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* Get a currency code.
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*/
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public function getCode(): string
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{
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return $this->code;
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}
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/**
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* Add a currency value.
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*/
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public function add(self $value): self
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{
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$amount = $this->getAmount();
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if ($this->getCode() !== $value->getCode()) {
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throw new RuntimeException("Can't add a currency value with a different code.");
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}
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$amount += $value->getAmount();
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return new self($amount, $this->getCode());
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}
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/**
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* Subtract a currency value.
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*/
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public function subtract(self $value): self
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{
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$amount = $this->getAmount();
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if ($this->getCode() !== $value->getCode()) {
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throw new RuntimeException("Can't substract a currency value with a different code.");
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}
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$amount -= $value->getAmount();
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return new self($amount, $this->getCode());
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}
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/**
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* Multiply by a multiplier.
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*/
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public function multiply(float $multiplier): self
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{
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$amount = $this->getAmount();
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$amount *= $multiplier;
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return new self($amount, $this->getCode());
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}
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/**
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* Divide by a divider.
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*/
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public function divide(float $divider): self
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{
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$amount = $this->getAmount();
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$amount /= $divider;
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return new self($amount, $this->getCode());
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}
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/**
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* Round with a precision.
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*/
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public function round(int $precision = 0): self
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{
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$amount = round($this->getAmount(), $precision);
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return new self($amount, $this->getCode());
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}
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/**
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* Create from an amount and code.
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*/
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public static function create(float $amount, string $code): self
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{
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return new self($amount, $code);
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}
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}
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