new appraoch

pancake/system/vendor/moneyphp/money/LICENSE

@@ -0,0 +1,21 @@
+Copyright (c) 2011-2016 Mathias Verraes
+Copyright (c) 2016 Márk Sági-Kazár <mark.sagikazar@gmail.com>
+Copyright (c) 2016 Frederik Bosch <f.bosch@genkgo.nl>
+
+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.

pancake/system/vendor/moneyphp/money/composer.json

@@ -0,0 +1,95 @@
+{
+    "name": "moneyphp/money",
+    "description": "PHP implementation of Fowler's Money pattern",
+    "license": "MIT",
+    "keywords": [
+        "money",
+        "vo",
+        "value object"
+    ],
+    "authors": [
+        {
+            "name": "Mathias Verraes",
+            "email": "mathias@verraes.net",
+            "homepage": "http://verraes.net"
+        },
+        {
+            "name": "Márk Sági-Kazár",
+            "email": "mark.sagikazar@gmail.com"
+        },
+        {
+            "name": "Frederik Bosch",
+            "email": "f.bosch@genkgo.nl"
+        }
+    ],
+    "homepage": "http://moneyphp.org",
+    "require": {
+        "php": ">=5.6",
+        "ext-json": "*"
+    },
+    "require-dev": {
+        "ext-bcmath": "*",
+        "ext-gmp": "*",
+        "ext-intl": "*",
+        "cache/taggable-cache": "^0.4.0",
+        "doctrine/instantiator": "^1.0.5",
+        "florianv/exchanger": "^1.0",
+        "florianv/swap": "^3.0",
+        "friends-of-phpspec/phpspec-code-coverage": "^3.1.1 || ^4.3",
+        "moneyphp/iso-currencies": "^3.2.1",
+        "php-http/message": "^1.4",
+        "php-http/mock-client": "^1.0.0",
+        "phpspec/phpspec": "^3.4.3",
+        "phpunit/phpunit": "^5.7.27 || ^6.5.14 || ^7.5.18 || ^8.5",
+        "psr/cache": "^1.0",
+        "symfony/phpunit-bridge": "^4"
+    },
+    "suggest": {
+        "ext-bcmath": "Calculate without integer limits",
+        "ext-gmp": "Calculate without integer limits",
+        "ext-intl": "Format Money objects with intl",
+        "florianv/exchanger": "Exchange rates library for PHP",
+        "florianv/swap": "Exchange rates library for PHP",
+        "psr/cache-implementation": "Used for Currency caching"
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+    "autoload": {
+        "psr-4": {
+            "Money\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Tests\\Money\\": "tests/",
+            "spec\\Money\\": "spec/"
+        }
+    },
+    "config": {
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true,
+            "ergebnis/composer-normalize": true
+        },
+        "sort-packages": true
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.x-dev"
+        }
+    },
+    "scripts": {
+        "clean": "rm -rf build/ vendor/",
+        "test": [
+            "vendor/bin/phpspec run",
+            "vendor/bin/phpunit -v"
+        ],
+        "test-coverage": [
+            "vendor/bin/phpspec run -c phpspec.ci.yml",
+            "vendor/bin/phpunit -v --coverage-text --coverage-clover=build/unit_coverage.xml"
+        ],
+        "update-currencies": [
+            "cp vendor/moneyphp/iso-currencies/resources/current.php resources/currency.php",
+            "php resources/generate-money-factory.php"
+        ]
+    }
+}

pancake/system/vendor/moneyphp/money/resources/generate-money-factory.php

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+<?php
+
+require __DIR__.'/../vendor/autoload.php';
+
+use Money\Currencies;
+
+$buffer = <<<PHP
+<?php
+
+namespace Money;
+
+/**
+ * This is a generated file. Do not edit it manually!
+ *
+PHPDOC
+ */
+trait MoneyFactory
+{
+    /**
+     * Convenience factory method for a Money object.
+     *
+     * <code>
+     * \$fiveDollar = Money::USD(500);
+     * </code>
+     *
+     * @param string \$method
+     * @param array  \$arguments
+     *
+     * @return Money
+     *
+     * @throws \InvalidArgumentException If amount is not integer(ish)
+     */
+    public static function __callStatic(\$method, \$arguments)
+    {
+        return new Money(\$arguments[0], new Currency(\$method));
+    }
+}
+
+PHP;
+
+$methodBuffer = '';
+
+$currencies = new Currencies\AggregateCurrencies([
+    new Currencies\ISOCurrencies(),
+    new Currencies\BitcoinCurrencies(),
+]);
+
+$currencies = iterator_to_array($currencies);
+
+usort($currencies, function (\Money\Currency $a, \Money\Currency $b) {
+    return strcmp($a->getCode(), $b->getCode());
+});
+
+/** @var \Money\Currency[] $currencies */
+foreach ($currencies as $currency) {
+    $methodBuffer .= sprintf(" * @method static Money %s(string|int \$amount)\n", $currency->getCode());
+}
+
+$buffer = str_replace('PHPDOC', rtrim($methodBuffer), $buffer);
+
+file_put_contents(__DIR__.'/../src/MoneyFactory.php', $buffer);

pancake/system/vendor/moneyphp/money/src/Calculator.php

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+<?php
+
+namespace Money;
+
+/**
+ * Money calculations abstracted away from the Money value object.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+interface Calculator
+{
+    /**
+     * Returns whether the calculator is supported in
+     * the current server environment.
+     *
+     * @return bool
+     */
+    public static function supported();
+
+    /**
+     * Compare a to b.
+     *
+     * @param string $a
+     * @param string $b
+     *
+     * @return int
+     */
+    public function compare($a, $b);
+
+    /**
+     * Add added to amount.
+     *
+     * @param string $amount
+     * @param string $addend
+     *
+     * @return string
+     */
+    public function add($amount, $addend);
+
+    /**
+     * Subtract subtrahend from amount.
+     *
+     * @param string $amount
+     * @param string $subtrahend
+     *
+     * @return string
+     */
+    public function subtract($amount, $subtrahend);
+
+    /**
+     * Multiply amount with multiplier.
+     *
+     * @param string           $amount
+     * @param int|float|string $multiplier
+     *
+     * @return string
+     */
+    public function multiply($amount, $multiplier);
+
+    /**
+     * Divide amount with divisor.
+     *
+     * @param string           $amount
+     * @param int|float|string $divisor
+     *
+     * @return string
+     */
+    public function divide($amount, $divisor);
+
+    /**
+     * Round number to following integer.
+     *
+     * @param string $number
+     *
+     * @return string
+     */
+    public function ceil($number);
+
+    /**
+     * Round number to preceding integer.
+     *
+     * @param string $number
+     *
+     * @return string
+     */
+    public function floor($number);
+
+    /**
+     * Returns the absolute value of the number.
+     *
+     * @param string $number
+     *
+     * @return string
+     */
+    public function absolute($number);
+
+    /**
+     * Round number, use rounding mode for tie-breaker.
+     *
+     * @param int|float|string $number
+     * @param int              $roundingMode
+     *
+     * @return string
+     */
+    public function round($number, $roundingMode);
+
+    /**
+     * Share amount among ratio / total portions.
+     *
+     * @param string           $amount
+     * @param int|float|string $ratio
+     * @param int|float|string $total
+     *
+     * @return string
+     */
+    public function share($amount, $ratio, $total);
+
+    /**
+     * Get the modulus of an amount.
+     *
+     * @param string           $amount
+     * @param int|float|string $divisor
+     *
+     * @return string
+     */
+    public function mod($amount, $divisor);
+}

pancake/system/vendor/moneyphp/money/src/Calculator/BcMathCalculator.php

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+<?php
+
+namespace Money\Calculator;
+
+use Money\Calculator;
+use Money\Money;
+use Money\Number;
+
+/**
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class BcMathCalculator implements Calculator
+{
+    /**
+     * @var string
+     */
+    private $scale;
+
+    /**
+     * @param int $scale
+     */
+    public function __construct($scale = 14)
+    {
+        $this->scale = $scale;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function supported()
+    {
+        return extension_loaded('bcmath');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function compare($a, $b)
+    {
+        return bccomp($a, $b, $this->scale);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function add($amount, $addend)
+    {
+        return (string) Number::fromString(bcadd($amount, $addend, $this->scale));
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param $amount
+     * @param $subtrahend
+     *
+     * @return string
+     */
+    public function subtract($amount, $subtrahend)
+    {
+        return (string) Number::fromString(bcsub($amount, $subtrahend, $this->scale));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function multiply($amount, $multiplier)
+    {
+        $multiplier = Number::fromNumber($multiplier);
+
+        return bcmul($amount, (string) $multiplier, $this->scale);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function divide($amount, $divisor)
+    {
+        $divisor = Number::fromNumber($divisor);
+
+        return bcdiv($amount, (string) $divisor, $this->scale);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function ceil($number)
+    {
+        $number = Number::fromNumber($number);
+
+        if ($number->isInteger()) {
+            return (string) $number;
+        }
+
+        if ($number->isNegative()) {
+            return bcadd((string) $number, '0', 0);
+        }
+
+        return bcadd((string) $number, '1', 0);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function floor($number)
+    {
+        $number = Number::fromNumber($number);
+
+        if ($number->isInteger()) {
+            return (string) $number;
+        }
+
+        if ($number->isNegative()) {
+            return bcadd((string) $number, '-1', 0);
+        }
+
+        return bcadd($number, '0', 0);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function absolute($number)
+    {
+        return ltrim($number, '-');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function round($number, $roundingMode)
+    {
+        $number = Number::fromNumber($number);
+
+        if ($number->isInteger()) {
+            return (string) $number;
+        }
+
+        if ($number->isHalf() === false) {
+            return $this->roundDigit($number);
+        }
+
+        if (Money::ROUND_HALF_UP === $roundingMode) {
+            return bcadd(
+                (string) $number,
+                $number->getIntegerRoundingMultiplier(),
+                0
+            );
+        }
+
+        if (Money::ROUND_HALF_DOWN === $roundingMode) {
+            return bcadd((string) $number, '0', 0);
+        }
+
+        if (Money::ROUND_HALF_EVEN === $roundingMode) {
+            if ($number->isCurrentEven()) {
+                return bcadd((string) $number, '0', 0);
+            }
+
+            return bcadd(
+                (string) $number,
+                $number->getIntegerRoundingMultiplier(),
+                0
+            );
+        }
+
+        if (Money::ROUND_HALF_ODD === $roundingMode) {
+            if ($number->isCurrentEven()) {
+                return bcadd(
+                    (string) $number,
+                    $number->getIntegerRoundingMultiplier(),
+                    0
+                );
+            }
+
+            return bcadd((string) $number, '0', 0);
+        }
+
+        if (Money::ROUND_HALF_POSITIVE_INFINITY === $roundingMode) {
+            if ($number->isNegative()) {
+                return bcadd((string) $number, '0', 0);
+            }
+
+            return bcadd(
+                (string) $number,
+                $number->getIntegerRoundingMultiplier(),
+                0
+            );
+        }
+
+        if (Money::ROUND_HALF_NEGATIVE_INFINITY === $roundingMode) {
+            if ($number->isNegative()) {
+                return bcadd(
+                    (string) $number,
+                    $number->getIntegerRoundingMultiplier(),
+                    0
+                );
+            }
+
+            return bcadd(
+                (string) $number,
+                '0',
+                0
+            );
+        }
+
+        throw new \InvalidArgumentException('Unknown rounding mode');
+    }
+
+    /**
+     * @return string
+     */
+    private function roundDigit(Number $number)
+    {
+        if ($number->isCloserToNext()) {
+            return bcadd(
+                (string) $number,
+                $number->getIntegerRoundingMultiplier(),
+                0
+            );
+        }
+
+        return bcadd((string) $number, '0', 0);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function share($amount, $ratio, $total)
+    {
+        return $this->floor(bcdiv(bcmul($amount, $ratio, $this->scale), $total, $this->scale));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function mod($amount, $divisor)
+    {
+        return bcmod($amount, $divisor);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Calculator/GmpCalculator.php

@@ -0,0 +1,322 @@
+<?php
+
+namespace Money\Calculator;
+
+use Money\Calculator;
+use Money\Money;
+use Money\Number;
+
+/**
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class GmpCalculator implements Calculator
+{
+    /**
+     * @var string
+     */
+    private $scale;
+
+    /**
+     * @param int $scale
+     */
+    public function __construct($scale = 14)
+    {
+        $this->scale = $scale;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function supported()
+    {
+        return extension_loaded('gmp');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function compare($a, $b)
+    {
+        $aNum = Number::fromNumber($a);
+        $bNum = Number::fromNumber($b);
+
+        if ($aNum->isDecimal() || $bNum->isDecimal()) {
+            $integersCompared = gmp_cmp($aNum->getIntegerPart(), $bNum->getIntegerPart());
+            if ($integersCompared !== 0) {
+                return $integersCompared;
+            }
+
+            $aNumFractional = $aNum->getFractionalPart() === '' ? '0' : $aNum->getFractionalPart();
+            $bNumFractional = $bNum->getFractionalPart() === '' ? '0' : $bNum->getFractionalPart();
+
+            return gmp_cmp($aNumFractional, $bNumFractional);
+        }
+
+        return gmp_cmp($a, $b);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function add($amount, $addend)
+    {
+        return gmp_strval(gmp_add($amount, $addend));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function subtract($amount, $subtrahend)
+    {
+        return gmp_strval(gmp_sub($amount, $subtrahend));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function multiply($amount, $multiplier)
+    {
+        $multiplier = Number::fromNumber($multiplier);
+
+        if ($multiplier->isDecimal()) {
+            $decimalPlaces = strlen($multiplier->getFractionalPart());
+            $multiplierBase = $multiplier->getIntegerPart();
+
+            if ($multiplierBase) {
+                $multiplierBase .= $multiplier->getFractionalPart();
+            } else {
+                $multiplierBase = ltrim($multiplier->getFractionalPart(), '0');
+            }
+
+            $resultBase = gmp_strval(gmp_mul(gmp_init($amount), gmp_init($multiplierBase)));
+
+            if ('0' === $resultBase) {
+                return '0';
+            }
+
+            $result = substr($resultBase, $decimalPlaces * -1);
+            $resultLength = strlen($result);
+            if ($decimalPlaces > $resultLength) {
+                return '0.'.str_pad('', $decimalPlaces - $resultLength, '0').$result;
+            }
+
+            return substr($resultBase, 0, $decimalPlaces * -1).'.'.$result;
+        }
+
+        return gmp_strval(gmp_mul(gmp_init($amount), gmp_init((string) $multiplier)));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function divide($amount, $divisor)
+    {
+        $divisor = Number::fromNumber($divisor);
+
+        if ($divisor->isDecimal()) {
+            $decimalPlaces = strlen($divisor->getFractionalPart());
+
+            if ($divisor->getIntegerPart()) {
+                $divisor = new Number($divisor->getIntegerPart().$divisor->getFractionalPart());
+            } else {
+                $divisor = new Number(ltrim($divisor->getFractionalPart(), '0'));
+            }
+
+            $amount = gmp_strval(gmp_mul(gmp_init($amount), gmp_init('1'.str_pad('', $decimalPlaces, '0'))));
+        }
+
+        list($integer, $remainder) = gmp_div_qr(gmp_init($amount), gmp_init((string) $divisor));
+
+        if (gmp_cmp($remainder, '0') === 0) {
+            return gmp_strval($integer);
+        }
+
+        $divisionOfRemainder = gmp_strval(
+            gmp_div_q(
+                gmp_mul($remainder, gmp_init('1'.str_pad('', $this->scale, '0'))),
+                gmp_init((string) $divisor),
+                GMP_ROUND_MINUSINF
+            )
+        );
+
+        if ($divisionOfRemainder[0] === '-') {
+            $divisionOfRemainder = substr($divisionOfRemainder, 1);
+        }
+
+        return gmp_strval($integer).'.'.str_pad($divisionOfRemainder, $this->scale, '0', STR_PAD_LEFT);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function ceil($number)
+    {
+        $number = Number::fromNumber($number);
+
+        if ($number->isInteger()) {
+            return (string) $number;
+        }
+
+        if ($number->isNegative()) {
+            return $this->add($number->getIntegerPart(), '0');
+        }
+
+        return $this->add($number->getIntegerPart(), '1');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function floor($number)
+    {
+        $number = Number::fromNumber($number);
+
+        if ($number->isInteger()) {
+            return (string) $number;
+        }
+
+        if ($number->isNegative()) {
+            return $this->add($number->getIntegerPart(), '-1');
+        }
+
+        return $this->add($number->getIntegerPart(), '0');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function absolute($number)
+    {
+        return ltrim($number, '-');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function round($number, $roundingMode)
+    {
+        $number = Number::fromNumber($number);
+
+        if ($number->isInteger()) {
+            return (string) $number;
+        }
+
+        if ($number->isHalf() === false) {
+            return $this->roundDigit($number);
+        }
+
+        if (Money::ROUND_HALF_UP === $roundingMode) {
+            return $this->add(
+                $number->getIntegerPart(),
+                $number->getIntegerRoundingMultiplier()
+            );
+        }
+
+        if (Money::ROUND_HALF_DOWN === $roundingMode) {
+            return $this->add($number->getIntegerPart(), '0');
+        }
+
+        if (Money::ROUND_HALF_EVEN === $roundingMode) {
+            if ($number->isCurrentEven()) {
+                return $this->add($number->getIntegerPart(), '0');
+            }
+
+            return $this->add(
+                $number->getIntegerPart(),
+                $number->getIntegerRoundingMultiplier()
+            );
+        }
+
+        if (Money::ROUND_HALF_ODD === $roundingMode) {
+            if ($number->isCurrentEven()) {
+                return $this->add(
+                    $number->getIntegerPart(),
+                    $number->getIntegerRoundingMultiplier()
+                );
+            }
+
+            return $this->add($number->getIntegerPart(), '0');
+        }
+
+        if (Money::ROUND_HALF_POSITIVE_INFINITY === $roundingMode) {
+            if ($number->isNegative()) {
+                return $this->add(
+                    $number->getIntegerPart(),
+                    '0'
+                );
+            }
+
+            return $this->add(
+                $number->getIntegerPart(),
+                $number->getIntegerRoundingMultiplier()
+            );
+        }
+
+        if (Money::ROUND_HALF_NEGATIVE_INFINITY === $roundingMode) {
+            if ($number->isNegative()) {
+                return $this->add(
+                    $number->getIntegerPart(),
+                    $number->getIntegerRoundingMultiplier()
+                );
+            }
+
+            return $this->add(
+                $number->getIntegerPart(),
+                '0'
+            );
+        }
+
+        throw new \InvalidArgumentException('Unknown rounding mode');
+    }
+
+    /**
+     * @param $number
+     *
+     * @return string
+     */
+    private function roundDigit(Number $number)
+    {
+        if ($number->isCloserToNext()) {
+            return $this->add(
+                $number->getIntegerPart(),
+                $number->getIntegerRoundingMultiplier()
+            );
+        }
+
+        return $this->add($number->getIntegerPart(), '0');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function share($amount, $ratio, $total)
+    {
+        return $this->floor($this->divide($this->multiply($amount, $ratio), $total));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function mod($amount, $divisor)
+    {
+        // gmp_mod() only calculates non-negative integers, so we use absolutes
+        $remainder = gmp_mod($this->absolute($amount), $this->absolute($divisor));
+
+        // If the amount was negative, we negate the result of the modulus operation
+        $amount = Number::fromNumber($amount);
+
+        if ($amount->isNegative()) {
+            $remainder = gmp_neg($remainder);
+        }
+
+        return gmp_strval($remainder);
+    }
+
+    /**
+     * @test
+     */
+    public function it_divides_bug538()
+    {
+        $this->assertSame('-4.54545454545455', $this->getCalculator()->divide('-500', 110));
+    }
+}

pancake/system/vendor/moneyphp/money/src/Calculator/PhpCalculator.php

@@ -0,0 +1,197 @@
+<?php
+
+namespace Money\Calculator;
+
+use Money\Calculator;
+use Money\Money;
+use Money\Number;
+
+/**
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class PhpCalculator implements Calculator
+{
+    /**
+     * {@inheritdoc}
+     */
+    public static function supported()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function compare($a, $b)
+    {
+        return ($a < $b) ? -1 : (($a > $b) ? 1 : 0);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function add($amount, $addend)
+    {
+        $result = $amount + $addend;
+
+        $this->assertInteger($result);
+
+        return (string) $result;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function subtract($amount, $subtrahend)
+    {
+        $result = $amount - $subtrahend;
+
+        $this->assertInteger($result);
+
+        return (string) $result;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function multiply($amount, $multiplier)
+    {
+        $result = $amount * $multiplier;
+
+        $this->assertIntegerBounds($result);
+
+        return (string) Number::fromNumber($result);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function divide($amount, $divisor)
+    {
+        $result = $amount / $divisor;
+
+        $this->assertIntegerBounds($result);
+
+        return (string) Number::fromNumber($result);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function ceil($number)
+    {
+        return $this->castInteger(ceil($number));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function floor($number)
+    {
+        return $this->castInteger(floor($number));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function absolute($number)
+    {
+        $result = ltrim($number, '-');
+
+        $this->assertIntegerBounds($result);
+
+        return (string) $result;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function round($number, $roundingMode)
+    {
+        if (Money::ROUND_HALF_POSITIVE_INFINITY === $roundingMode) {
+            $number = Number::fromNumber($number);
+
+            if ($number->isHalf()) {
+                return $this->castInteger(ceil((string) $number));
+            }
+
+            return $this->castInteger(round((string) $number, 0, Money::ROUND_HALF_UP));
+        }
+
+        if (Money::ROUND_HALF_NEGATIVE_INFINITY === $roundingMode) {
+            $number = Number::fromNumber($number);
+
+            if ($number->isHalf()) {
+                return $this->castInteger(floor((string) $number));
+            }
+
+            return $this->castInteger(round((string) $number, 0, Money::ROUND_HALF_DOWN));
+        }
+
+        return $this->castInteger(round($number, 0, $roundingMode));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function share($amount, $ratio, $total)
+    {
+        return $this->castInteger(floor($amount * $ratio / $total));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function mod($amount, $divisor)
+    {
+        $result = $amount % $divisor;
+
+        $this->assertIntegerBounds($result);
+
+        return (string) $result;
+    }
+
+    /**
+     * Asserts that an integer value didn't become something else
+     * (after some arithmetic operation).
+     *
+     * @param int $amount
+     *
+     * @throws \OverflowException  If integer overflow occured
+     * @throws \UnderflowException If integer underflow occured
+     */
+    private function assertIntegerBounds($amount)
+    {
+        if ($amount > PHP_INT_MAX) {
+            throw new \OverflowException('You overflowed the maximum allowed integer (PHP_INT_MAX)');
+        } elseif ($amount < ~PHP_INT_MAX) {
+            throw new \UnderflowException('You underflowed the minimum allowed integer (PHP_INT_MAX)');
+        }
+    }
+
+    /**
+     * Casts an amount to integer ensuring that an overflow/underflow did not occur.
+     *
+     * @param int $amount
+     *
+     * @return string
+     */
+    private function castInteger($amount)
+    {
+        $this->assertIntegerBounds($amount);
+
+        return (string) intval($amount);
+    }
+
+    /**
+     * Asserts that integer remains integer after arithmetic operations.
+     *
+     * @param int $amount
+     */
+    private function assertInteger($amount)
+    {
+        if (filter_var($amount, FILTER_VALIDATE_INT) === false) {
+            throw new \UnexpectedValueException('The result of arithmetic operation is not an integer');
+        }
+    }
+}

pancake/system/vendor/moneyphp/money/src/Converter.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Money;
+
+/**
+ * Provides a way to convert Money to Money in another Currency using an exchange rate.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class Converter
+{
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    /**
+     * @var Exchange
+     */
+    private $exchange;
+
+    public function __construct(Currencies $currencies, Exchange $exchange)
+    {
+        $this->currencies = $currencies;
+        $this->exchange = $exchange;
+    }
+
+    /**
+     * @param int $roundingMode
+     *
+     * @return Money
+     */
+    public function convert(Money $money, Currency $counterCurrency, $roundingMode = Money::ROUND_HALF_UP)
+    {
+        $baseCurrency = $money->getCurrency();
+        $ratio = $this->exchange->quote($baseCurrency, $counterCurrency)->getConversionRatio();
+
+        $baseCurrencySubunit = $this->currencies->subunitFor($baseCurrency);
+        $counterCurrencySubunit = $this->currencies->subunitFor($counterCurrency);
+        $subunitDifference = $baseCurrencySubunit - $counterCurrencySubunit;
+
+        $ratio = (string) Number::fromFloat($ratio)->base10($subunitDifference);
+
+        $counterValue = $money->multiply($ratio, $roundingMode);
+
+        return new Money($counterValue->getAmount(), $counterCurrency);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Currencies.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Money;
+
+use Money\Exception\UnknownCurrencyException;
+
+/**
+ * Implement this to provide a list of currencies.
+ *
+ * @author Mathias Verraes
+ */
+interface Currencies extends \IteratorAggregate
+{
+    /**
+     * Checks whether a currency is available in the current context.
+     *
+     * @return bool
+     */
+    public function contains(Currency $currency);
+
+    /**
+     * Returns the subunit for a currency.
+     *
+     * @return int
+     *
+     * @throws UnknownCurrencyException If currency is not available in the current context
+     */
+    public function subunitFor(Currency $currency);
+}

pancake/system/vendor/moneyphp/money/src/Currencies/AggregateCurrencies.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace Money\Currencies;
+
+use Money\Currencies;
+use Money\Currency;
+use Money\Exception\UnknownCurrencyException;
+
+/**
+ * Aggregates several currency repositories.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+final class AggregateCurrencies implements Currencies
+{
+    /**
+     * @var Currencies[]
+     */
+    private $currencies;
+
+    /**
+     * @param Currencies[] $currencies
+     */
+    public function __construct(array $currencies)
+    {
+        foreach ($currencies as $c) {
+            if (false === $c instanceof Currencies) {
+                throw new \InvalidArgumentException('All currency repositories must implement '.Currencies::class);
+            }
+        }
+
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function contains(Currency $currency)
+    {
+        foreach ($this->currencies as $currencies) {
+            if ($currencies->contains($currency)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function subunitFor(Currency $currency)
+    {
+        foreach ($this->currencies as $currencies) {
+            if ($currencies->contains($currency)) {
+                return $currencies->subunitFor($currency);
+            }
+        }
+
+        throw new UnknownCurrencyException('Cannot find currency '.$currency->getCode());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    #[\ReturnTypeWillChange]
+    public function getIterator()
+    {
+        $iterator = new \AppendIterator();
+
+        foreach ($this->currencies as $currencies) {
+            $iterator->append($currencies->getIterator());
+        }
+
+        return $iterator;
+    }
+}

pancake/system/vendor/moneyphp/money/src/Currencies/BitcoinCurrencies.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace Money\Currencies;
+
+use Money\Currencies;
+use Money\Currency;
+use Money\Exception\UnknownCurrencyException;
+
+/**
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class BitcoinCurrencies implements Currencies
+{
+    const CODE = 'XBT';
+
+    const SYMBOL = "\xC9\x83";
+
+    /**
+     * {@inheritdoc}
+     */
+    public function contains(Currency $currency)
+    {
+        return self::CODE === $currency->getCode();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function subunitFor(Currency $currency)
+    {
+        if ($currency->getCode() !== self::CODE) {
+            throw new UnknownCurrencyException($currency->getCode().' is not bitcoin and is not supported by this currency repository');
+        }
+
+        return 8;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    #[\ReturnTypeWillChange]
+    public function getIterator()
+    {
+        return new \ArrayIterator([new Currency(self::CODE)]);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Currencies/CachedCurrencies.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace Money\Currencies;
+
+use Cache\Taggable\TaggableItemInterface;
+use Money\Currencies;
+use Money\Currency;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * Cache the result of currency checking.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+final class CachedCurrencies implements Currencies
+{
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    /**
+     * @var CacheItemPoolInterface
+     */
+    private $pool;
+
+    public function __construct(Currencies $currencies, CacheItemPoolInterface $pool)
+    {
+        $this->currencies = $currencies;
+        $this->pool = $pool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function contains(Currency $currency)
+    {
+        $item = $this->pool->getItem('currency|availability|'.$currency->getCode());
+
+        if (false === $item->isHit()) {
+            $item->set($this->currencies->contains($currency));
+
+            if ($item instanceof TaggableItemInterface) {
+                $item->addTag('currency.availability');
+            }
+
+            $this->pool->save($item);
+        }
+
+        return $item->get();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function subunitFor(Currency $currency)
+    {
+        $item = $this->pool->getItem('currency|subunit|'.$currency->getCode());
+
+        if (false === $item->isHit()) {
+            $item->set($this->currencies->subunitFor($currency));
+
+            if ($item instanceof TaggableItemInterface) {
+                $item->addTag('currency.subunit');
+            }
+
+            $this->pool->save($item);
+        }
+
+        return $item->get();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    #[\ReturnTypeWillChange]
+    public function getIterator()
+    {
+        return new \CallbackFilterIterator(
+            $this->currencies->getIterator(),
+            function (Currency $currency) {
+                $item = $this->pool->getItem('currency|availability|'.$currency->getCode());
+                $item->set(true);
+
+                if ($item instanceof TaggableItemInterface) {
+                    $item->addTag('currency.availability');
+                }
+
+                $this->pool->save($item);
+
+                return true;
+            }
+        );
+    }
+}

pancake/system/vendor/moneyphp/money/src/Currencies/CurrencyList.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace Money\Currencies;
+
+use Money\Currencies;
+use Money\Currency;
+use Money\Exception\UnknownCurrencyException;
+
+/**
+ * A list of custom currencies.
+ *
+ * @author George Mponos <gmponos@gmail.com>
+ */
+final class CurrencyList implements Currencies
+{
+    /**
+     * Map of currencies indexed by code.
+     *
+     * @var array
+     */
+    private $currencies;
+
+    public function __construct(array $currencies)
+    {
+        foreach ($currencies as $currencyCode => $subunit) {
+            if (empty($currencyCode) || !is_string($currencyCode)) {
+                throw new \InvalidArgumentException(sprintf('Currency code must be a string and not empty. "%s" given', $currencyCode));
+            }
+
+            if (!is_int($subunit) || $subunit < 0) {
+                throw new \InvalidArgumentException(sprintf('Currency %s does not have a valid minor unit. Must be a positive integer.', $currencyCode));
+            }
+        }
+
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function contains(Currency $currency)
+    {
+        return isset($this->currencies[$currency->getCode()]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function subunitFor(Currency $currency)
+    {
+        if (!$this->contains($currency)) {
+            throw new UnknownCurrencyException('Cannot find currency '.$currency->getCode());
+        }
+
+        return $this->currencies[$currency->getCode()];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    #[\ReturnTypeWillChange]
+    public function getIterator()
+    {
+        return new \ArrayIterator(
+            array_map(
+                function ($code) {
+                    return new Currency($code);
+                },
+                array_keys($this->currencies)
+            )
+        );
+    }
+}

pancake/system/vendor/moneyphp/money/src/Currencies/ISOCurrencies.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace Money\Currencies;
+
+use Money\Currencies;
+use Money\Currency;
+use Money\Exception\UnknownCurrencyException;
+
+/**
+ * List of supported ISO 4217 currency codes and names.
+ *
+ * @author Mathias Verraes
+ */
+final class ISOCurrencies implements Currencies
+{
+    /**
+     * Map of known currencies indexed by code.
+     *
+     * @var array
+     */
+    private static $currencies;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function contains(Currency $currency)
+    {
+        return isset($this->getCurrencies()[$currency->getCode()]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function subunitFor(Currency $currency)
+    {
+        if (!$this->contains($currency)) {
+            throw new UnknownCurrencyException('Cannot find ISO currency '.$currency->getCode());
+        }
+
+        return $this->getCurrencies()[$currency->getCode()]['minorUnit'];
+    }
+
+    /**
+     * Returns the numeric code for a currency.
+     *
+     * @return int
+     *
+     * @throws UnknownCurrencyException If currency is not available in the current context
+     */
+    public function numericCodeFor(Currency $currency)
+    {
+        if (!$this->contains($currency)) {
+            throw new UnknownCurrencyException('Cannot find ISO currency '.$currency->getCode());
+        }
+
+        return $this->getCurrencies()[$currency->getCode()]['numericCode'];
+    }
+
+    /**
+     * @return \Traversable
+     */
+    #[\ReturnTypeWillChange]
+    public function getIterator()
+    {
+        return new \ArrayIterator(
+            array_map(
+                function ($code) {
+                    return new Currency($code);
+                },
+                array_keys($this->getCurrencies())
+            )
+        );
+    }
+
+    /**
+     * Returns a map of known currencies indexed by code.
+     *
+     * @return array
+     */
+    private function getCurrencies()
+    {
+        if (null === self::$currencies) {
+            self::$currencies = $this->loadCurrencies();
+        }
+
+        return self::$currencies;
+    }
+
+    /**
+     * @return array
+     */
+    private function loadCurrencies()
+    {
+        $file = __DIR__.'/../../resources/currency.php';
+
+        if (file_exists($file)) {
+            return require $file;
+        }
+
+        throw new \RuntimeException('Failed to load currency ISO codes.');
+    }
+}

pancake/system/vendor/moneyphp/money/src/Currency.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace Money;
+
+/**
+ * Currency Value Object.
+ *
+ * Holds Currency specific data.
+ *
+ * @author Mathias Verraes
+ *
+ * @psalm-immutable
+ */
+final class Currency implements \JsonSerializable
+{
+    /**
+     * Currency code.
+     *
+     * @var string
+     */
+    private $code;
+
+    /**
+     * @param string $code
+     */
+    public function __construct($code)
+    {
+        if (!is_string($code)) {
+            throw new \InvalidArgumentException('Currency code should be string');
+        }
+
+        if ($code === '') {
+            throw new \InvalidArgumentException('Currency code should not be empty string');
+        }
+
+        $this->code = $code;
+    }
+
+    /**
+     * Returns the currency code.
+     *
+     * @return string
+     */
+    public function getCode()
+    {
+        return $this->code;
+    }
+
+    /**
+     * Checks whether this currency is the same as an other.
+     *
+     * @return bool
+     */
+    public function equals(Currency $other)
+    {
+        return $this->code === $other->code;
+    }
+
+    /**
+     * Checks whether this currency is available in the passed context.
+     *
+     * @return bool
+     */
+    public function isAvailableWithin(Currencies $currencies)
+    {
+        return $currencies->contains($this);
+    }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->code;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return string
+     */
+    #[\ReturnTypeWillChange]
+    public function jsonSerialize()
+    {
+        return $this->code;
+    }
+}

pancake/system/vendor/moneyphp/money/src/CurrencyPair.php

@@ -0,0 +1,130 @@
+<?php
+
+namespace Money;
+
+/**
+ * Currency Pair holding a base, a counter currency and a conversion ratio.
+ *
+ * @author Mathias Verraes
+ *
+ * @see http://en.wikipedia.org/wiki/Currency_pair
+ */
+final class CurrencyPair implements \JsonSerializable
+{
+    /**
+     * Currency to convert from.
+     *
+     * @var Currency
+     */
+    private $baseCurrency;
+
+    /**
+     * Currency to convert to.
+     *
+     * @var Currency
+     */
+    private $counterCurrency;
+
+    /**
+     * @var float
+     */
+    private $conversionRatio;
+
+    /**
+     * @param float $conversionRatio
+     *
+     * @throws \InvalidArgumentException If conversion ratio is not numeric
+     */
+    public function __construct(Currency $baseCurrency, Currency $counterCurrency, $conversionRatio)
+    {
+        if (!is_numeric($conversionRatio)) {
+            throw new \InvalidArgumentException('Conversion ratio must be numeric');
+        }
+
+        $this->counterCurrency = $counterCurrency;
+        $this->baseCurrency = $baseCurrency;
+        $this->conversionRatio = (float) $conversionRatio;
+    }
+
+    /**
+     * Creates a new Currency Pair based on "EUR/USD 1.2500" form representation.
+     *
+     * @param string $iso String representation of the form "EUR/USD 1.2500"
+     *
+     * @return CurrencyPair
+     *
+     * @throws \InvalidArgumentException Format of $iso is invalid
+     */
+    public static function createFromIso($iso)
+    {
+        $currency = '([A-Z]{2,3})';
+        $ratio = "([0-9]*\.?[0-9]+)"; // @see http://www.regular-expressions.info/floatingpoint.html
+        $pattern = '#'.$currency.'/'.$currency.' '.$ratio.'#';
+
+        $matches = [];
+
+        if (!preg_match($pattern, $iso, $matches)) {
+            throw new \InvalidArgumentException(sprintf('Cannot create currency pair from ISO string "%s", format of string is invalid', $iso));
+        }
+
+        return new self(new Currency($matches[1]), new Currency($matches[2]), $matches[3]);
+    }
+
+    /**
+     * Returns the counter currency.
+     *
+     * @return Currency
+     */
+    public function getCounterCurrency()
+    {
+        return $this->counterCurrency;
+    }
+
+    /**
+     * Returns the base currency.
+     *
+     * @return Currency
+     */
+    public function getBaseCurrency()
+    {
+        return $this->baseCurrency;
+    }
+
+    /**
+     * Returns the conversion ratio.
+     *
+     * @return float
+     */
+    public function getConversionRatio()
+    {
+        return $this->conversionRatio;
+    }
+
+    /**
+     * Checks if an other CurrencyPair has the same parameters as this.
+     *
+     * @return bool
+     */
+    public function equals(CurrencyPair $other)
+    {
+        return
+            $this->baseCurrency->equals($other->baseCurrency)
+            && $this->counterCurrency->equals($other->counterCurrency)
+            && $this->conversionRatio === $other->conversionRatio
+        ;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return array
+     */
+    public function jsonSerialize()
+    {
+        return [
+            'baseCurrency' => $this->baseCurrency,
+            'counterCurrency' => $this->counterCurrency,
+            'ratio' => $this->conversionRatio,
+        ];
+    }
+}

pancake/system/vendor/moneyphp/money/src/Exception.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace Money;
+
+/**
+ * Common interface for all exceptions thrown by this library.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+interface Exception
+{
+}

pancake/system/vendor/moneyphp/money/src/Exception/FormatterException.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Money\Exception;
+
+use Money\Exception;
+
+/**
+ * Thrown when a Money object cannot be formatted into a string.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class FormatterException extends \RuntimeException implements Exception
+{
+}

pancake/system/vendor/moneyphp/money/src/Exception/ParserException.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Money\Exception;
+
+use Money\Exception;
+
+/**
+ * Thrown when a string cannot be parsed to a Money object.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class ParserException extends \RuntimeException implements Exception
+{
+}

pancake/system/vendor/moneyphp/money/src/Exception/UnknownCurrencyException.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Money\Exception;
+
+use Money\Exception;
+
+/**
+ * Thrown when trying to get ISO currency that does not exists.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class UnknownCurrencyException extends \DomainException implements Exception
+{
+}

pancake/system/vendor/moneyphp/money/src/Exception/UnresolvableCurrencyPairException.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Money\Exception;
+
+use Money\Currency;
+use Money\Exception;
+
+/**
+ * Thrown when there is no currency pair (rate) available for the given currencies.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+final class UnresolvableCurrencyPairException extends \InvalidArgumentException implements Exception
+{
+    /**
+     * Creates an exception from Currency objects.
+     *
+     * @return UnresolvableCurrencyPairException
+     */
+    public static function createFromCurrencies(Currency $baseCurrency, Currency $counterCurrency)
+    {
+        $message = sprintf(
+            'Cannot resolve a currency pair for currencies: %s/%s',
+            $baseCurrency->getCode(),
+            $counterCurrency->getCode()
+        );
+
+        return new self($message);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Exchange.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Money;
+
+use Money\Exception\UnresolvableCurrencyPairException;
+
+/**
+ * Provides a way to get exchange rate from a third-party source and return a currency pair.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+interface Exchange
+{
+    /**
+     * Returns a currency pair for the passed currencies with the rate coming from a third-party source.
+     *
+     * @return CurrencyPair
+     *
+     * @throws UnresolvableCurrencyPairException When there is no currency pair (rate) available for the given currencies
+     */
+    public function quote(Currency $baseCurrency, Currency $counterCurrency);
+}

pancake/system/vendor/moneyphp/money/src/Exchange/ExchangerExchange.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Money\Exchange;
+
+use Exchanger\Contract\ExchangeRateProvider;
+use Exchanger\CurrencyPair as ExchangerCurrencyPair;
+use Exchanger\Exception\Exception as ExchangerException;
+use Exchanger\ExchangeRateQuery;
+use Money\Currency;
+use Money\CurrencyPair;
+use Money\Exception\UnresolvableCurrencyPairException;
+use Money\Exchange;
+
+/**
+ * Provides a way to get exchange rate from a third-party source and return a currency pair.
+ *
+ * @author Maksim (Ellrion) Platonov <ellrion11@gmail.com>
+ */
+final class ExchangerExchange implements Exchange
+{
+    /**
+     * @var ExchangeRateProvider
+     */
+    private $exchanger;
+
+    public function __construct(ExchangeRateProvider $exchanger)
+    {
+        $this->exchanger = $exchanger;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function quote(Currency $baseCurrency, Currency $counterCurrency)
+    {
+        try {
+            $query = new ExchangeRateQuery(
+                new ExchangerCurrencyPair($baseCurrency->getCode(), $counterCurrency->getCode())
+            );
+            $rate = $this->exchanger->getExchangeRate($query);
+        } catch (ExchangerException $e) {
+            throw UnresolvableCurrencyPairException::createFromCurrencies($baseCurrency, $counterCurrency);
+        }
+
+        return new CurrencyPair($baseCurrency, $counterCurrency, $rate->getValue());
+    }
+}

pancake/system/vendor/moneyphp/money/src/Exchange/FixedExchange.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Money\Exchange;
+
+use Money\Currency;
+use Money\CurrencyPair;
+use Money\Exception\UnresolvableCurrencyPairException;
+use Money\Exchange;
+
+/**
+ * Provides a way to get exchange rate from a static list (array).
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class FixedExchange implements Exchange
+{
+    /**
+     * @var array
+     */
+    private $list;
+
+    public function __construct(array $list)
+    {
+        $this->list = $list;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function quote(Currency $baseCurrency, Currency $counterCurrency)
+    {
+        if (isset($this->list[$baseCurrency->getCode()][$counterCurrency->getCode()])) {
+            return new CurrencyPair(
+                $baseCurrency,
+                $counterCurrency,
+                $this->list[$baseCurrency->getCode()][$counterCurrency->getCode()]
+            );
+        }
+
+        throw UnresolvableCurrencyPairException::createFromCurrencies($baseCurrency, $counterCurrency);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Exchange/IndirectExchange.php

@@ -0,0 +1,195 @@
+<?php
+
+namespace Money\Exchange;
+
+use Money\Calculator;
+use Money\Calculator\BcMathCalculator;
+use Money\Calculator\GmpCalculator;
+use Money\Calculator\PhpCalculator;
+use Money\Currencies;
+use Money\Currency;
+use Money\CurrencyPair;
+use Money\Exception\UnresolvableCurrencyPairException;
+use Money\Exchange;
+
+/**
+ * Provides a way to get an exchange rate through a minimal set of intermediate conversions.
+ *
+ * @author Michael Cordingley <Michael.Cordingley@gmail.com>
+ */
+final class IndirectExchange implements Exchange
+{
+    /**
+     * @var Calculator
+     */
+    private static $calculator;
+
+    /**
+     * @var array
+     */
+    private static $calculators = [
+        BcMathCalculator::class,
+        GmpCalculator::class,
+        PhpCalculator::class,
+    ];
+
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    /**
+     * @var Exchange
+     */
+    private $exchange;
+
+    public function __construct(Exchange $exchange, Currencies $currencies)
+    {
+        $this->exchange = $exchange;
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * @param string $calculator
+     */
+    public static function registerCalculator($calculator)
+    {
+        if (is_a($calculator, Calculator::class, true) === false) {
+            throw new \InvalidArgumentException('Calculator must implement '.Calculator::class);
+        }
+
+        array_unshift(self::$calculators, $calculator);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function quote(Currency $baseCurrency, Currency $counterCurrency)
+    {
+        try {
+            return $this->exchange->quote($baseCurrency, $counterCurrency);
+        } catch (UnresolvableCurrencyPairException $exception) {
+            $rate = array_reduce($this->getConversions($baseCurrency, $counterCurrency), function ($carry, CurrencyPair $pair) {
+                return static::getCalculator()->multiply($carry, $pair->getConversionRatio());
+            }, '1.0');
+
+            return new CurrencyPair($baseCurrency, $counterCurrency, $rate);
+        }
+    }
+
+    /**
+     * @return CurrencyPair[]
+     *
+     * @throws UnresolvableCurrencyPairException
+     */
+    private function getConversions(Currency $baseCurrency, Currency $counterCurrency)
+    {
+        $startNode = $this->initializeNode($baseCurrency);
+        $startNode->discovered = true;
+
+        $nodes = [$baseCurrency->getCode() => $startNode];
+
+        $frontier = new \SplQueue();
+        $frontier->enqueue($startNode);
+
+        while ($frontier->count()) {
+            /** @var \stdClass $currentNode */
+            $currentNode = $frontier->dequeue();
+
+            /** @var Currency $currentCurrency */
+            $currentCurrency = $currentNode->currency;
+
+            if ($currentCurrency->equals($counterCurrency)) {
+                return $this->reconstructConversionChain($nodes, $currentNode);
+            }
+
+            /** @var Currency $candidateCurrency */
+            foreach ($this->currencies as $candidateCurrency) {
+                if (!isset($nodes[$candidateCurrency->getCode()])) {
+                    $nodes[$candidateCurrency->getCode()] = $this->initializeNode($candidateCurrency);
+                }
+
+                /** @var \stdClass $node */
+                $node = $nodes[$candidateCurrency->getCode()];
+
+                if (!$node->discovered) {
+                    try {
+                        // Check if the candidate is a neighbor. This will throw an exception if it isn't.
+                        $this->exchange->quote($currentCurrency, $candidateCurrency);
+
+                        $node->discovered = true;
+                        $node->parent = $currentNode;
+
+                        $frontier->enqueue($node);
+                    } catch (UnresolvableCurrencyPairException $exception) {
+                        // Not a neighbor. Move on.
+                    }
+                }
+            }
+        }
+
+        throw UnresolvableCurrencyPairException::createFromCurrencies($baseCurrency, $counterCurrency);
+    }
+
+    /**
+     * @return \stdClass
+     */
+    private function initializeNode(Currency $currency)
+    {
+        $node = new \stdClass();
+
+        $node->currency = $currency;
+        $node->discovered = false;
+        $node->parent = null;
+
+        return $node;
+    }
+
+    /**
+     * @return CurrencyPair[]
+     */
+    private function reconstructConversionChain(array $currencies, \stdClass $goalNode)
+    {
+        $current = $goalNode;
+        $conversions = [];
+
+        while ($current->parent) {
+            $previous = $currencies[$current->parent->currency->getCode()];
+            $conversions[] = $this->exchange->quote($previous->currency, $current->currency);
+            $current = $previous;
+        }
+
+        return array_reverse($conversions);
+    }
+
+    /**
+     * @return Calculator
+     */
+    private function getCalculator()
+    {
+        if (null === self::$calculator) {
+            self::$calculator = self::initializeCalculator();
+        }
+
+        return self::$calculator;
+    }
+
+    /**
+     * @return Calculator
+     *
+     * @throws \RuntimeException If cannot find calculator for money calculations
+     */
+    private static function initializeCalculator()
+    {
+        $calculators = self::$calculators;
+
+        foreach ($calculators as $calculator) {
+            /** @var Calculator $calculator */
+            if ($calculator::supported()) {
+                return new $calculator();
+            }
+        }
+
+        throw new \RuntimeException('Cannot find calculator for money calculations');
+    }
+}

pancake/system/vendor/moneyphp/money/src/Exchange/ReversedCurrenciesExchange.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace Money\Exchange;
+
+use Money\Currency;
+use Money\CurrencyPair;
+use Money\Exception\UnresolvableCurrencyPairException;
+use Money\Exchange;
+
+/**
+ * Tries the reverse of the currency pair if one is not available.
+ *
+ * Note: adding nested ReversedCurrenciesExchange could cause a huge performance hit.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+final class ReversedCurrenciesExchange implements Exchange
+{
+    /**
+     * @var Exchange
+     */
+    private $exchange;
+
+    public function __construct(Exchange $exchange)
+    {
+        $this->exchange = $exchange;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function quote(Currency $baseCurrency, Currency $counterCurrency)
+    {
+        try {
+            return $this->exchange->quote($baseCurrency, $counterCurrency);
+        } catch (UnresolvableCurrencyPairException $exception) {
+            try {
+                $currencyPair = $this->exchange->quote($counterCurrency, $baseCurrency);
+
+                return new CurrencyPair($baseCurrency, $counterCurrency, 1 / $currencyPair->getConversionRatio());
+            } catch (UnresolvableCurrencyPairException $inversedException) {
+                throw $exception;
+            }
+        }
+    }
+}

pancake/system/vendor/moneyphp/money/src/Exchange/SwapExchange.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Money\Exchange;
+
+use Exchanger\Exception\Exception as ExchangerException;
+use Money\Currency;
+use Money\CurrencyPair;
+use Money\Exception\UnresolvableCurrencyPairException;
+use Money\Exchange;
+use Swap\Swap;
+
+/**
+ * Provides a way to get exchange rate from a third-party source and return a currency pair.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+final class SwapExchange implements Exchange
+{
+    /**
+     * @var Swap
+     */
+    private $swap;
+
+    public function __construct(Swap $swap)
+    {
+        $this->swap = $swap;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function quote(Currency $baseCurrency, Currency $counterCurrency)
+    {
+        try {
+            $rate = $this->swap->latest($baseCurrency->getCode().'/'.$counterCurrency->getCode());
+        } catch (ExchangerException $e) {
+            throw UnresolvableCurrencyPairException::createFromCurrencies($baseCurrency, $counterCurrency);
+        }
+
+        return new CurrencyPair($baseCurrency, $counterCurrency, $rate->getValue());
+    }
+}

pancake/system/vendor/moneyphp/money/src/Formatter/AggregateMoneyFormatter.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Money\Formatter;
+
+use Money\Exception\FormatterException;
+use Money\Money;
+use Money\MoneyFormatter;
+
+/**
+ * Formats a Money object using other Money formatters.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class AggregateMoneyFormatter implements MoneyFormatter
+{
+    /**
+     * @var MoneyFormatter[]
+     */
+    private $formatters = [];
+
+    /**
+     * @param MoneyFormatter[] $formatters
+     */
+    public function __construct(array $formatters)
+    {
+        if (empty($formatters)) {
+            throw new \InvalidArgumentException(sprintf('Initialize an empty %s is not possible', self::class));
+        }
+
+        foreach ($formatters as $currencyCode => $formatter) {
+            if (false === $formatter instanceof MoneyFormatter) {
+                throw new \InvalidArgumentException('All formatters must implement '.MoneyFormatter::class);
+            }
+
+            $this->formatters[$currencyCode] = $formatter;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(Money $money)
+    {
+        $currencyCode = $money->getCurrency()->getCode();
+
+        if (isset($this->formatters[$currencyCode])) {
+            return $this->formatters[$currencyCode]->format($money);
+        }
+
+        if (isset($this->formatters['*'])) {
+            return $this->formatters['*']->format($money);
+        }
+
+        throw new FormatterException('No formatter found for currency '.$currencyCode);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Formatter/BitcoinMoneyFormatter.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace Money\Formatter;
+
+use Money\Currencies;
+use Money\Currencies\BitcoinCurrencies;
+use Money\Exception\FormatterException;
+use Money\Money;
+use Money\MoneyFormatter;
+use Money\Number;
+
+/**
+ * Formats Money to Bitcoin currency.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class BitcoinMoneyFormatter implements MoneyFormatter
+{
+    /**
+     * @var int
+     */
+    private $fractionDigits;
+
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    /**
+     * @param int $fractionDigits
+     */
+    public function __construct($fractionDigits, Currencies $currencies)
+    {
+        $this->fractionDigits = $fractionDigits;
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(Money $money)
+    {
+        if (BitcoinCurrencies::CODE !== $money->getCurrency()->getCode()) {
+            throw new FormatterException('Bitcoin Formatter can only format Bitcoin currency');
+        }
+
+        $valueBase = $money->getAmount();
+        $negative = false;
+
+        if ('-' === $valueBase[0]) {
+            $negative = true;
+            $valueBase = substr($valueBase, 1);
+        }
+
+        $subunit = $this->currencies->subunitFor($money->getCurrency());
+        $valueBase = Number::roundMoneyValue($valueBase, $this->fractionDigits, $subunit);
+        $valueLength = strlen($valueBase);
+
+        if ($valueLength > $subunit) {
+            $formatted = substr($valueBase, 0, $valueLength - $subunit);
+
+            if ($subunit) {
+                $formatted .= '.';
+                $formatted .= substr($valueBase, $valueLength - $subunit);
+            }
+        } else {
+            $formatted = '0.'.str_pad('', $subunit - $valueLength, '0').$valueBase;
+        }
+
+        if ($this->fractionDigits === 0) {
+            $formatted = substr($formatted, 0, strpos($formatted, '.'));
+        } elseif ($this->fractionDigits > $subunit) {
+            $formatted .= str_pad('', $this->fractionDigits - $subunit, '0');
+        } elseif ($this->fractionDigits < $subunit) {
+            $lastDigit = strpos($formatted, '.') + $this->fractionDigits + 1;
+            $formatted = substr($formatted, 0, $lastDigit);
+        }
+
+        $formatted = BitcoinCurrencies::SYMBOL.$formatted;
+
+        if (true === $negative) {
+            $formatted = '-'.$formatted;
+        }
+
+        return $formatted;
+    }
+}

pancake/system/vendor/moneyphp/money/src/Formatter/DecimalMoneyFormatter.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace Money\Formatter;
+
+use Money\Currencies;
+use Money\Money;
+use Money\MoneyFormatter;
+
+/**
+ * Formats a Money object as a decimal string.
+ *
+ * @author Teoh Han Hui <teohhanhui@gmail.com>
+ */
+final class DecimalMoneyFormatter implements MoneyFormatter
+{
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    public function __construct(Currencies $currencies)
+    {
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(Money $money)
+    {
+        $valueBase = $money->getAmount();
+        $negative = false;
+
+        if ($valueBase[0] === '-') {
+            $negative = true;
+            $valueBase = substr($valueBase, 1);
+        }
+
+        $subunit = $this->currencies->subunitFor($money->getCurrency());
+        $valueLength = strlen($valueBase);
+
+        if ($valueLength > $subunit) {
+            $formatted = substr($valueBase, 0, $valueLength - $subunit);
+            $decimalDigits = substr($valueBase, $valueLength - $subunit);
+
+            if (strlen($decimalDigits) > 0) {
+                $formatted .= '.'.$decimalDigits;
+            }
+        } else {
+            $formatted = '0.'.str_pad('', $subunit - $valueLength, '0').$valueBase;
+        }
+
+        if ($negative === true) {
+            $formatted = '-'.$formatted;
+        }
+
+        return $formatted;
+    }
+}

pancake/system/vendor/moneyphp/money/src/Formatter/IntlLocalizedDecimalFormatter.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Money\Formatter;
+
+use Money\Currencies;
+use Money\Money;
+use Money\MoneyFormatter;
+
+/**
+ * Formats a Money object using intl extension.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class IntlLocalizedDecimalFormatter implements MoneyFormatter
+{
+    /**
+     * @var \NumberFormatter
+     */
+    private $formatter;
+
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    public function __construct(\NumberFormatter $formatter, Currencies $currencies)
+    {
+        $this->formatter = $formatter;
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(Money $money)
+    {
+        $valueBase = $money->getAmount();
+        $negative = false;
+
+        if ($valueBase[0] === '-') {
+            $negative = true;
+            $valueBase = substr($valueBase, 1);
+        }
+
+        $subunit = $this->currencies->subunitFor($money->getCurrency());
+        $valueLength = strlen($valueBase);
+
+        if ($valueLength > $subunit) {
+            $formatted = substr($valueBase, 0, $valueLength - $subunit);
+            $decimalDigits = substr($valueBase, $valueLength - $subunit);
+
+            if (strlen($decimalDigits) > 0) {
+                $formatted .= '.'.$decimalDigits;
+            }
+        } else {
+            $formatted = '0.'.str_pad('', $subunit - $valueLength, '0').$valueBase;
+        }
+
+        if ($negative === true) {
+            $formatted = '-'.$formatted;
+        }
+
+        return $this->formatter->format($formatted);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Formatter/IntlMoneyFormatter.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Money\Formatter;
+
+use Money\Currencies;
+use Money\Money;
+use Money\MoneyFormatter;
+
+/**
+ * Formats a Money object using intl extension.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class IntlMoneyFormatter implements MoneyFormatter
+{
+    /**
+     * @var \NumberFormatter
+     */
+    private $formatter;
+
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    public function __construct(\NumberFormatter $formatter, Currencies $currencies)
+    {
+        $this->formatter = $formatter;
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(Money $money)
+    {
+        $valueBase = $money->getAmount();
+        $negative = false;
+
+        if ($valueBase[0] === '-') {
+            $negative = true;
+            $valueBase = substr($valueBase, 1);
+        }
+
+        $subunit = $this->currencies->subunitFor($money->getCurrency());
+        $valueLength = strlen($valueBase);
+
+        if ($valueLength > $subunit) {
+            $formatted = substr($valueBase, 0, $valueLength - $subunit);
+            $decimalDigits = substr($valueBase, $valueLength - $subunit);
+
+            if (strlen($decimalDigits) > 0) {
+                $formatted .= '.'.$decimalDigits;
+            }
+        } else {
+            $formatted = '0.'.str_pad('', $subunit - $valueLength, '0').$valueBase;
+        }
+
+        if ($negative === true) {
+            $formatted = '-'.$formatted;
+        }
+
+        return $this->formatter->formatCurrency($formatted, $money->getCurrency()->getCode());
+    }
+}

pancake/system/vendor/moneyphp/money/src/Money.php

@@ -0,0 +1,613 @@
+<?php
+
+namespace Money;
+
+use Money\Calculator\BcMathCalculator;
+use Money\Calculator\GmpCalculator;
+use Money\Calculator\PhpCalculator;
+
+/**
+ * Money Value Object.
+ *
+ * @author Mathias Verraes
+ *
+ * @psalm-immutable
+ */
+final class Money implements \JsonSerializable
+{
+    use MoneyFactory;
+
+    const ROUND_HALF_UP = PHP_ROUND_HALF_UP;
+
+    const ROUND_HALF_DOWN = PHP_ROUND_HALF_DOWN;
+
+    const ROUND_HALF_EVEN = PHP_ROUND_HALF_EVEN;
+
+    const ROUND_HALF_ODD = PHP_ROUND_HALF_ODD;
+
+    const ROUND_UP = 5;
+
+    const ROUND_DOWN = 6;
+
+    const ROUND_HALF_POSITIVE_INFINITY = 7;
+
+    const ROUND_HALF_NEGATIVE_INFINITY = 8;
+
+    /**
+     * Internal value.
+     *
+     * @var string
+     */
+    private $amount;
+
+    /**
+     * @var Currency
+     */
+    private $currency;
+
+    /**
+     * @var Calculator
+     */
+    private static $calculator;
+
+    /**
+     * @var array
+     */
+    private static $calculators = [
+        BcMathCalculator::class,
+        GmpCalculator::class,
+        PhpCalculator::class,
+    ];
+
+    /**
+     * @param int|string $amount Amount, expressed in the smallest units of $currency (eg cents)
+     *
+     * @throws \InvalidArgumentException If amount is not integer
+     */
+    public function __construct($amount, Currency $currency)
+    {
+        if (filter_var($amount, FILTER_VALIDATE_INT) === false) {
+            $numberFromString = Number::fromString($amount);
+            if (!$numberFromString->isInteger()) {
+                throw new \InvalidArgumentException('Amount must be an integer(ish) value');
+            }
+
+            $amount = $numberFromString->getIntegerPart();
+        }
+
+        $this->amount = (string) $amount;
+        $this->currency = $currency;
+    }
+
+    /**
+     * Returns a new Money instance based on the current one using the Currency.
+     *
+     * @param int|string $amount
+     *
+     * @return Money
+     *
+     * @throws \InvalidArgumentException If amount is not integer
+     */
+    private function newInstance($amount)
+    {
+        return new self($amount, $this->currency);
+    }
+
+    /**
+     * Checks whether a Money has the same Currency as this.
+     *
+     * @return bool
+     */
+    public function isSameCurrency(Money $other)
+    {
+        return $this->currency->equals($other->currency);
+    }
+
+    /**
+     * Asserts that a Money has the same currency as this.
+     *
+     * @throws \InvalidArgumentException If $other has a different currency
+     */
+    private function assertSameCurrency(Money $other)
+    {
+        if (!$this->isSameCurrency($other)) {
+            throw new \InvalidArgumentException('Currencies must be identical');
+        }
+    }
+
+    /**
+     * Checks whether the value represented by this object equals to the other.
+     *
+     * @return bool
+     */
+    public function equals(Money $other)
+    {
+        return $this->isSameCurrency($other) && $this->amount === $other->amount;
+    }
+
+    /**
+     * Returns an integer less than, equal to, or greater than zero
+     * if the value of this object is considered to be respectively
+     * less than, equal to, or greater than the other.
+     *
+     * @return int
+     */
+    public function compare(Money $other)
+    {
+        $this->assertSameCurrency($other);
+
+        return $this->getCalculator()->compare($this->amount, $other->amount);
+    }
+
+    /**
+     * Checks whether the value represented by this object is greater than the other.
+     *
+     * @return bool
+     */
+    public function greaterThan(Money $other)
+    {
+        return $this->compare($other) > 0;
+    }
+
+    /**
+     * @param \Money\Money $other
+     *
+     * @return bool
+     */
+    public function greaterThanOrEqual(Money $other)
+    {
+        return $this->compare($other) >= 0;
+    }
+
+    /**
+     * Checks whether the value represented by this object is less than the other.
+     *
+     * @return bool
+     */
+    public function lessThan(Money $other)
+    {
+        return $this->compare($other) < 0;
+    }
+
+    /**
+     * @param \Money\Money $other
+     *
+     * @return bool
+     */
+    public function lessThanOrEqual(Money $other)
+    {
+        return $this->compare($other) <= 0;
+    }
+
+    /**
+     * Returns the value represented by this object.
+     *
+     * @return string
+     */
+    public function getAmount()
+    {
+        return $this->amount;
+    }
+
+    /**
+     * Returns the currency of this object.
+     *
+     * @return Currency
+     */
+    public function getCurrency()
+    {
+        return $this->currency;
+    }
+
+    /**
+     * Returns a new Money object that represents
+     * the sum of this and an other Money object.
+     *
+     * @param Money[] $addends
+     *
+     * @return Money
+     */
+    public function add(Money ...$addends)
+    {
+        $amount = $this->amount;
+        $calculator = $this->getCalculator();
+
+        foreach ($addends as $addend) {
+            $this->assertSameCurrency($addend);
+
+            $amount = $calculator->add($amount, $addend->amount);
+        }
+
+        return new self($amount, $this->currency);
+    }
+
+    /**
+     * Returns a new Money object that represents
+     * the difference of this and an other Money object.
+     *
+     * @param Money[] $subtrahends
+     *
+     * @return Money
+     *
+     * @psalm-pure
+     */
+    public function subtract(Money ...$subtrahends)
+    {
+        $amount = $this->amount;
+        $calculator = $this->getCalculator();
+
+        foreach ($subtrahends as $subtrahend) {
+            $this->assertSameCurrency($subtrahend);
+
+            $amount = $calculator->subtract($amount, $subtrahend->amount);
+        }
+
+        return new self($amount, $this->currency);
+    }
+
+    /**
+     * Asserts that the operand is integer or float.
+     *
+     * @param float|int|string $operand
+     *
+     * @throws \InvalidArgumentException If $operand is neither integer nor float
+     */
+    private function assertOperand($operand)
+    {
+        if (!is_numeric($operand)) {
+            throw new \InvalidArgumentException(sprintf('Operand should be a numeric value, "%s" given.', is_object($operand) ? get_class($operand) : gettype($operand)));
+        }
+    }
+
+    /**
+     * Asserts that rounding mode is a valid integer value.
+     *
+     * @param int $roundingMode
+     *
+     * @throws \InvalidArgumentException If $roundingMode is not valid
+     */
+    private function assertRoundingMode($roundingMode)
+    {
+        if (!in_array(
+            $roundingMode, [
+                self::ROUND_HALF_DOWN, self::ROUND_HALF_EVEN, self::ROUND_HALF_ODD,
+                self::ROUND_HALF_UP, self::ROUND_UP, self::ROUND_DOWN,
+                self::ROUND_HALF_POSITIVE_INFINITY, self::ROUND_HALF_NEGATIVE_INFINITY,
+            ], true
+        )) {
+            throw new \InvalidArgumentException('Rounding mode should be Money::ROUND_HALF_DOWN | '.'Money::ROUND_HALF_EVEN | Money::ROUND_HALF_ODD | '.'Money::ROUND_HALF_UP | Money::ROUND_UP | Money::ROUND_DOWN'.'Money::ROUND_HALF_POSITIVE_INFINITY | Money::ROUND_HALF_NEGATIVE_INFINITY');
+        }
+    }
+
+    /**
+     * Returns a new Money object that represents
+     * the multiplied value by the given factor.
+     *
+     * @param float|int|string $multiplier
+     * @param int              $roundingMode
+     *
+     * @return Money
+     */
+    public function multiply($multiplier, $roundingMode = self::ROUND_HALF_UP)
+    {
+        $this->assertOperand($multiplier);
+        $this->assertRoundingMode($roundingMode);
+
+        $product = $this->round($this->getCalculator()->multiply($this->amount, $multiplier), $roundingMode);
+
+        return $this->newInstance($product);
+    }
+
+    /**
+     * Returns a new Money object that represents
+     * the divided value by the given factor.
+     *
+     * @param float|int|string $divisor
+     * @param int              $roundingMode
+     *
+     * @return Money
+     */
+    public function divide($divisor, $roundingMode = self::ROUND_HALF_UP)
+    {
+        $this->assertOperand($divisor);
+        $this->assertRoundingMode($roundingMode);
+
+        $divisor = (string) Number::fromNumber($divisor);
+
+        if ($this->getCalculator()->compare($divisor, '0') === 0) {
+            throw new \InvalidArgumentException('Division by zero');
+        }
+
+        $quotient = $this->round($this->getCalculator()->divide($this->amount, $divisor), $roundingMode);
+
+        return $this->newInstance($quotient);
+    }
+
+    /**
+     * Returns a new Money object that represents
+     * the remainder after dividing the value by
+     * the given factor.
+     *
+     * @return Money
+     */
+    public function mod(Money $divisor)
+    {
+        $this->assertSameCurrency($divisor);
+
+        return new self($this->getCalculator()->mod($this->amount, $divisor->amount), $this->currency);
+    }
+
+    /**
+     * Allocate the money according to a list of ratios.
+     *
+     * @return Money[]
+     */
+    public function allocate(array $ratios)
+    {
+        if (count($ratios) === 0) {
+            throw new \InvalidArgumentException('Cannot allocate to none, ratios cannot be an empty array');
+        }
+
+        $remainder = $this->amount;
+        $results = [];
+        $total = array_sum($ratios);
+
+        if ($total <= 0) {
+            throw new \InvalidArgumentException('Cannot allocate to none, sum of ratios must be greater than zero');
+        }
+
+        foreach ($ratios as $key => $ratio) {
+            if ($ratio < 0) {
+                throw new \InvalidArgumentException('Cannot allocate to none, ratio must be zero or positive');
+            }
+            $share = $this->getCalculator()->share($this->amount, $ratio, $total);
+            $results[$key] = $this->newInstance($share);
+            $remainder = $this->getCalculator()->subtract($remainder, $share);
+        }
+
+        if ($this->getCalculator()->compare($remainder, '0') === 0) {
+            return $results;
+        }
+
+        $fractions = array_map(function ($ratio) use ($total) {
+            $share = ($ratio / $total) * $this->amount;
+
+            return $share - floor($share);
+        }, $ratios);
+
+        while ($this->getCalculator()->compare($remainder, '0') > 0) {
+            $index = !empty($fractions) ? array_keys($fractions, max($fractions))[0] : 0;
+            $results[$index]->amount = $this->getCalculator()->add($results[$index]->amount, '1');
+            $remainder = $this->getCalculator()->subtract($remainder, '1');
+            unset($fractions[$index]);
+        }
+
+        return $results;
+    }
+
+    /**
+     * Allocate the money among N targets.
+     *
+     * @param int $n
+     *
+     * @return Money[]
+     *
+     * @throws \InvalidArgumentException If number of targets is not an integer
+     */
+    public function allocateTo($n)
+    {
+        if (!is_int($n)) {
+            throw new \InvalidArgumentException('Number of targets must be an integer');
+        }
+
+        if ($n <= 0) {
+            throw new \InvalidArgumentException('Cannot allocate to none, target must be greater than zero');
+        }
+
+        return $this->allocate(array_fill(0, $n, 1));
+    }
+
+    /**
+     * @return string
+     */
+    public function ratioOf(Money $money)
+    {
+        if ($money->isZero()) {
+            throw new \InvalidArgumentException('Cannot calculate a ratio of zero');
+        }
+
+        return $this->getCalculator()->divide($this->amount, $money->amount);
+    }
+
+    /**
+     * @param string $amount
+     * @param int    $rounding_mode
+     *
+     * @return string
+     */
+    private function round($amount, $rounding_mode)
+    {
+        $this->assertRoundingMode($rounding_mode);
+
+        if ($rounding_mode === self::ROUND_UP) {
+            return $this->getCalculator()->ceil($amount);
+        }
+
+        if ($rounding_mode === self::ROUND_DOWN) {
+            return $this->getCalculator()->floor($amount);
+        }
+
+        return $this->getCalculator()->round($amount, $rounding_mode);
+    }
+
+    /**
+     * @return Money
+     */
+    public function absolute()
+    {
+        return $this->newInstance($this->getCalculator()->absolute($this->amount));
+    }
+
+    /**
+     * @return Money
+     */
+    public function negative()
+    {
+        return $this->newInstance(0)->subtract($this);
+    }
+
+    /**
+     * Checks if the value represented by this object is zero.
+     *
+     * @return bool
+     */
+    public function isZero()
+    {
+        return $this->getCalculator()->compare($this->amount, 0) === 0;
+    }
+
+    /**
+     * Checks if the value represented by this object is positive.
+     *
+     * @return bool
+     */
+    public function isPositive()
+    {
+        return $this->getCalculator()->compare($this->amount, 0) > 0;
+    }
+
+    /**
+     * Checks if the value represented by this object is negative.
+     *
+     * @return bool
+     */
+    public function isNegative()
+    {
+        return $this->getCalculator()->compare($this->amount, 0) < 0;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return array
+     */
+    #[\ReturnTypeWillChange]
+    public function jsonSerialize()
+    {
+        return [
+            'amount' => $this->amount,
+            'currency' => $this->currency->jsonSerialize(),
+        ];
+    }
+
+    /**
+     * @param Money $first
+     * @param Money ...$collection
+     *
+     * @return Money
+     *
+     * @psalm-pure
+     */
+    public static function min(self $first, self ...$collection)
+    {
+        $min = $first;
+
+        foreach ($collection as $money) {
+            if ($money->lessThan($min)) {
+                $min = $money;
+            }
+        }
+
+        return $min;
+    }
+
+    /**
+     * @param Money $first
+     * @param Money ...$collection
+     *
+     * @return Money
+     *
+     * @psalm-pure
+     */
+    public static function max(self $first, self ...$collection)
+    {
+        $max = $first;
+
+        foreach ($collection as $money) {
+            if ($money->greaterThan($max)) {
+                $max = $money;
+            }
+        }
+
+        return $max;
+    }
+
+    /**
+     * @param Money $first
+     * @param Money ...$collection
+     *
+     * @return Money
+     *
+     * @psalm-pure
+     */
+    public static function sum(self $first, self ...$collection)
+    {
+        return $first->add(...$collection);
+    }
+
+    /**
+     * @param Money $first
+     * @param Money ...$collection
+     *
+     * @return Money
+     *
+     * @psalm-pure
+     */
+    public static function avg(self $first, self ...$collection)
+    {
+        return $first->add(...$collection)->divide(func_num_args());
+    }
+
+    /**
+     * @param string $calculator
+     */
+    public static function registerCalculator($calculator)
+    {
+        if (is_a($calculator, Calculator::class, true) === false) {
+            throw new \InvalidArgumentException('Calculator must implement '.Calculator::class);
+        }
+
+        array_unshift(self::$calculators, $calculator);
+    }
+
+    /**
+     * @return Calculator
+     *
+     * @throws \RuntimeException If cannot find calculator for money calculations
+     */
+    private static function initializeCalculator()
+    {
+        $calculators = self::$calculators;
+
+        foreach ($calculators as $calculator) {
+            /** @var Calculator $calculator */
+            if ($calculator::supported()) {
+                return new $calculator();
+            }
+        }
+
+        throw new \RuntimeException('Cannot find calculator for money calculations');
+    }
+
+    /**
+     * @return Calculator
+     */
+    private function getCalculator()
+    {
+        if (null === self::$calculator) {
+            self::$calculator = self::initializeCalculator();
+        }
+
+        return self::$calculator;
+    }
+}

pancake/system/vendor/moneyphp/money/src/MoneyFactory.php

@@ -0,0 +1,208 @@
+<?php
+
+namespace Money;
+
+/**
+ * This is a generated file. Do not edit it manually!
+ *
+ * @method static Money AED(string|int $amount)
+ * @method static Money ALL(string|int $amount)
+ * @method static Money AMD(string|int $amount)
+ * @method static Money ANG(string|int $amount)
+ * @method static Money AOA(string|int $amount)
+ * @method static Money ARS(string|int $amount)
+ * @method static Money AUD(string|int $amount)
+ * @method static Money AWG(string|int $amount)
+ * @method static Money AZN(string|int $amount)
+ * @method static Money BAM(string|int $amount)
+ * @method static Money BBD(string|int $amount)
+ * @method static Money BDT(string|int $amount)
+ * @method static Money BGN(string|int $amount)
+ * @method static Money BHD(string|int $amount)
+ * @method static Money BIF(string|int $amount)
+ * @method static Money BMD(string|int $amount)
+ * @method static Money BND(string|int $amount)
+ * @method static Money BOB(string|int $amount)
+ * @method static Money BOV(string|int $amount)
+ * @method static Money BRL(string|int $amount)
+ * @method static Money BSD(string|int $amount)
+ * @method static Money BTN(string|int $amount)
+ * @method static Money BWP(string|int $amount)
+ * @method static Money BYN(string|int $amount)
+ * @method static Money BZD(string|int $amount)
+ * @method static Money CAD(string|int $amount)
+ * @method static Money CDF(string|int $amount)
+ * @method static Money CHE(string|int $amount)
+ * @method static Money CHF(string|int $amount)
+ * @method static Money CHW(string|int $amount)
+ * @method static Money CLF(string|int $amount)
+ * @method static Money CLP(string|int $amount)
+ * @method static Money CNY(string|int $amount)
+ * @method static Money COP(string|int $amount)
+ * @method static Money COU(string|int $amount)
+ * @method static Money CRC(string|int $amount)
+ * @method static Money CUC(string|int $amount)
+ * @method static Money CUP(string|int $amount)
+ * @method static Money CVE(string|int $amount)
+ * @method static Money CZK(string|int $amount)
+ * @method static Money DJF(string|int $amount)
+ * @method static Money DKK(string|int $amount)
+ * @method static Money DOP(string|int $amount)
+ * @method static Money DZD(string|int $amount)
+ * @method static Money EGP(string|int $amount)
+ * @method static Money ERN(string|int $amount)
+ * @method static Money ETB(string|int $amount)
+ * @method static Money EUR(string|int $amount)
+ * @method static Money FJD(string|int $amount)
+ * @method static Money FKP(string|int $amount)
+ * @method static Money GBP(string|int $amount)
+ * @method static Money GEL(string|int $amount)
+ * @method static Money GHS(string|int $amount)
+ * @method static Money GIP(string|int $amount)
+ * @method static Money GMD(string|int $amount)
+ * @method static Money GNF(string|int $amount)
+ * @method static Money GTQ(string|int $amount)
+ * @method static Money GYD(string|int $amount)
+ * @method static Money HKD(string|int $amount)
+ * @method static Money HNL(string|int $amount)
+ * @method static Money HRK(string|int $amount)
+ * @method static Money HTG(string|int $amount)
+ * @method static Money HUF(string|int $amount)
+ * @method static Money IDR(string|int $amount)
+ * @method static Money ILS(string|int $amount)
+ * @method static Money INR(string|int $amount)
+ * @method static Money IQD(string|int $amount)
+ * @method static Money IRR(string|int $amount)
+ * @method static Money ISK(string|int $amount)
+ * @method static Money JMD(string|int $amount)
+ * @method static Money JOD(string|int $amount)
+ * @method static Money JPY(string|int $amount)
+ * @method static Money KES(string|int $amount)
+ * @method static Money KGS(string|int $amount)
+ * @method static Money KHR(string|int $amount)
+ * @method static Money KMF(string|int $amount)
+ * @method static Money KPW(string|int $amount)
+ * @method static Money KRW(string|int $amount)
+ * @method static Money KWD(string|int $amount)
+ * @method static Money KYD(string|int $amount)
+ * @method static Money KZT(string|int $amount)
+ * @method static Money LAK(string|int $amount)
+ * @method static Money LBP(string|int $amount)
+ * @method static Money LKR(string|int $amount)
+ * @method static Money LRD(string|int $amount)
+ * @method static Money LSL(string|int $amount)
+ * @method static Money LYD(string|int $amount)
+ * @method static Money MAD(string|int $amount)
+ * @method static Money MDL(string|int $amount)
+ * @method static Money MGA(string|int $amount)
+ * @method static Money MKD(string|int $amount)
+ * @method static Money MMK(string|int $amount)
+ * @method static Money MNT(string|int $amount)
+ * @method static Money MOP(string|int $amount)
+ * @method static Money MRU(string|int $amount)
+ * @method static Money MUR(string|int $amount)
+ * @method static Money MVR(string|int $amount)
+ * @method static Money MWK(string|int $amount)
+ * @method static Money MXN(string|int $amount)
+ * @method static Money MXV(string|int $amount)
+ * @method static Money MYR(string|int $amount)
+ * @method static Money MZN(string|int $amount)
+ * @method static Money NAD(string|int $amount)
+ * @method static Money NGN(string|int $amount)
+ * @method static Money NIO(string|int $amount)
+ * @method static Money NOK(string|int $amount)
+ * @method static Money NPR(string|int $amount)
+ * @method static Money NZD(string|int $amount)
+ * @method static Money OMR(string|int $amount)
+ * @method static Money PAB(string|int $amount)
+ * @method static Money PEN(string|int $amount)
+ * @method static Money PGK(string|int $amount)
+ * @method static Money PHP(string|int $amount)
+ * @method static Money PKR(string|int $amount)
+ * @method static Money PLN(string|int $amount)
+ * @method static Money PYG(string|int $amount)
+ * @method static Money QAR(string|int $amount)
+ * @method static Money RON(string|int $amount)
+ * @method static Money RSD(string|int $amount)
+ * @method static Money RUB(string|int $amount)
+ * @method static Money RWF(string|int $amount)
+ * @method static Money SAR(string|int $amount)
+ * @method static Money SBD(string|int $amount)
+ * @method static Money SCR(string|int $amount)
+ * @method static Money SDG(string|int $amount)
+ * @method static Money SEK(string|int $amount)
+ * @method static Money SGD(string|int $amount)
+ * @method static Money SHP(string|int $amount)
+ * @method static Money SLL(string|int $amount)
+ * @method static Money SOS(string|int $amount)
+ * @method static Money SRD(string|int $amount)
+ * @method static Money SSP(string|int $amount)
+ * @method static Money STN(string|int $amount)
+ * @method static Money SVC(string|int $amount)
+ * @method static Money SYP(string|int $amount)
+ * @method static Money SZL(string|int $amount)
+ * @method static Money THB(string|int $amount)
+ * @method static Money TJS(string|int $amount)
+ * @method static Money TMT(string|int $amount)
+ * @method static Money TND(string|int $amount)
+ * @method static Money TOP(string|int $amount)
+ * @method static Money TRY(string|int $amount)
+ * @method static Money TTD(string|int $amount)
+ * @method static Money TWD(string|int $amount)
+ * @method static Money TZS(string|int $amount)
+ * @method static Money UAH(string|int $amount)
+ * @method static Money UGX(string|int $amount)
+ * @method static Money USD(string|int $amount)
+ * @method static Money USN(string|int $amount)
+ * @method static Money UYI(string|int $amount)
+ * @method static Money UYU(string|int $amount)
+ * @method static Money UYW(string|int $amount)
+ * @method static Money UZS(string|int $amount)
+ * @method static Money VES(string|int $amount)
+ * @method static Money VND(string|int $amount)
+ * @method static Money VUV(string|int $amount)
+ * @method static Money WST(string|int $amount)
+ * @method static Money XAF(string|int $amount)
+ * @method static Money XAG(string|int $amount)
+ * @method static Money XAU(string|int $amount)
+ * @method static Money XBA(string|int $amount)
+ * @method static Money XBB(string|int $amount)
+ * @method static Money XBC(string|int $amount)
+ * @method static Money XBD(string|int $amount)
+ * @method static Money XBT(string|int $amount)
+ * @method static Money XCD(string|int $amount)
+ * @method static Money XDR(string|int $amount)
+ * @method static Money XOF(string|int $amount)
+ * @method static Money XPD(string|int $amount)
+ * @method static Money XPF(string|int $amount)
+ * @method static Money XPT(string|int $amount)
+ * @method static Money XSU(string|int $amount)
+ * @method static Money XTS(string|int $amount)
+ * @method static Money XUA(string|int $amount)
+ * @method static Money XXX(string|int $amount)
+ * @method static Money YER(string|int $amount)
+ * @method static Money ZAR(string|int $amount)
+ * @method static Money ZMW(string|int $amount)
+ * @method static Money ZWL(string|int $amount)
+ */
+trait MoneyFactory
+{
+    /**
+     * Convenience factory method for a Money object.
+     *
+     * <code>
+     * $fiveDollar = Money::USD(500);
+     * </code>
+     *
+     * @param string $method
+     * @param array  $arguments
+     *
+     * @return Money
+     *
+     * @throws \InvalidArgumentException If amount is not integer(ish)
+     */
+    public static function __callStatic($method, $arguments)
+    {
+        return new Money($arguments[0], new Currency($method));
+    }
+}

pancake/system/vendor/moneyphp/money/src/MoneyFormatter.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Money;
+
+/**
+ * Formats Money objects.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+interface MoneyFormatter
+{
+    /**
+     * Formats a Money object as string.
+     *
+     * @return string
+     *
+     * Exception\FormatterException
+     */
+    public function format(Money $money);
+}

pancake/system/vendor/moneyphp/money/src/MoneyParser.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Money;
+
+/**
+ * Parses a string into a Money object.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+interface MoneyParser
+{
+    /**
+     * Parses a string into a Money object (including currency).
+     *
+     * @param string               $money
+     * @param Currency|string|null $forceCurrency
+     *
+     * @return Money
+     *
+     * @throws Exception\ParserException
+     */
+    public function parse($money, $forceCurrency = null);
+}

pancake/system/vendor/moneyphp/money/src/Number.php

@@ -0,0 +1,331 @@
+<?php
+
+namespace Money;
+
+/**
+ * Represents a numeric value.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class Number
+{
+    /**
+     * @var string
+     */
+    private $integerPart;
+
+    /**
+     * @var string
+     */
+    private $fractionalPart;
+
+    /**
+     * @var array
+     */
+    private static $numbers = [0 => 1, 1 => 1, 2 => 1, 3 => 1, 4 => 1, 5 => 1, 6 => 1, 7 => 1, 8 => 1, 9 => 1];
+
+    /**
+     * @param string $integerPart
+     * @param string $fractionalPart
+     */
+    public function __construct($integerPart, $fractionalPart = '')
+    {
+        if ('' === $integerPart && '' === $fractionalPart) {
+            throw new \InvalidArgumentException('Empty number is invalid');
+        }
+
+        $this->integerPart = $this->parseIntegerPart((string) $integerPart);
+        $this->fractionalPart = $this->parseFractionalPart((string) $fractionalPart);
+    }
+
+    /**
+     * @param $number
+     *
+     * @return self
+     */
+    public static function fromString($number)
+    {
+        $decimalSeparatorPosition = strpos($number, '.');
+        if ($decimalSeparatorPosition === false) {
+            return new self($number, '');
+        }
+
+        return new self(
+            substr($number, 0, $decimalSeparatorPosition),
+            rtrim(substr($number, $decimalSeparatorPosition + 1), '0')
+        );
+    }
+
+    /**
+     * @param float $number
+     *
+     * @return self
+     */
+    public static function fromFloat($number)
+    {
+        if (is_float($number) === false) {
+            throw new \InvalidArgumentException('Floating point value expected');
+        }
+
+        return self::fromString(sprintf('%.14F', $number));
+    }
+
+    /**
+     * @param float|int|string $number
+     *
+     * @return self
+     */
+    public static function fromNumber($number)
+    {
+        if (is_float($number)) {
+            return self::fromString(sprintf('%.14F', $number));
+        }
+
+        if (is_int($number)) {
+            return new self($number);
+        }
+
+        if (is_string($number)) {
+            return self::fromString($number);
+        }
+
+        throw new \InvalidArgumentException('Valid numeric value expected');
+    }
+
+    /**
+     * @return bool
+     */
+    public function isDecimal()
+    {
+        return $this->fractionalPart !== '';
+    }
+
+    /**
+     * @return bool
+     */
+    public function isInteger()
+    {
+        return $this->fractionalPart === '';
+    }
+
+    /**
+     * @return bool
+     */
+    public function isHalf()
+    {
+        return $this->fractionalPart === '5';
+    }
+
+    /**
+     * @return bool
+     */
+    public function isCurrentEven()
+    {
+        $lastIntegerPartNumber = $this->integerPart[strlen($this->integerPart) - 1];
+
+        return $lastIntegerPartNumber % 2 === 0;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isCloserToNext()
+    {
+        if ($this->fractionalPart === '') {
+            return false;
+        }
+
+        return $this->fractionalPart[0] >= 5;
+    }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        if ($this->fractionalPart === '') {
+            return $this->integerPart;
+        }
+
+        return $this->integerPart.'.'.$this->fractionalPart;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isNegative()
+    {
+        return $this->integerPart[0] === '-';
+    }
+
+    /**
+     * @return string
+     */
+    public function getIntegerPart()
+    {
+        return $this->integerPart;
+    }
+
+    /**
+     * @return string
+     */
+    public function getFractionalPart()
+    {
+        return $this->fractionalPart;
+    }
+
+    /**
+     * @return string
+     */
+    public function getIntegerRoundingMultiplier()
+    {
+        if ($this->integerPart[0] === '-') {
+            return '-1';
+        }
+
+        return '1';
+    }
+
+    /**
+     * @param int $number
+     *
+     * @return self
+     */
+    public function base10($number)
+    {
+        if (!is_int($number)) {
+            throw new \InvalidArgumentException('Expecting integer');
+        }
+
+        if ($this->integerPart === '0' && !$this->fractionalPart) {
+            return $this;
+        }
+
+        $sign = '';
+        $integerPart = $this->integerPart;
+
+        if ($integerPart[0] === '-') {
+            $sign = '-';
+            $integerPart = substr($integerPart, 1);
+        }
+
+        if ($number >= 0) {
+            $integerPart = ltrim($integerPart, '0');
+            $lengthIntegerPart = strlen($integerPart);
+            $integers = $lengthIntegerPart - min($number, $lengthIntegerPart);
+            $zeroPad = $number - min($number, $lengthIntegerPart);
+
+            return new self(
+                $sign.substr($integerPart, 0, $integers),
+                rtrim(str_pad('', $zeroPad, '0').substr($integerPart, $integers).$this->fractionalPart, '0')
+            );
+        }
+
+        $number = abs($number);
+        $lengthFractionalPart = strlen($this->fractionalPart);
+        $fractions = $lengthFractionalPart - min($number, $lengthFractionalPart);
+        $zeroPad = $number - min($number, $lengthFractionalPart);
+
+        return new self(
+            $sign.ltrim($integerPart.substr($this->fractionalPart, 0, $lengthFractionalPart - $fractions).str_pad('', $zeroPad, '0'), '0'),
+            substr($this->fractionalPart, $lengthFractionalPart - $fractions)
+        );
+    }
+
+    /**
+     * @param string $number
+     *
+     * @return string
+     */
+    private static function parseIntegerPart($number)
+    {
+        if ('' === $number || '0' === $number) {
+            return '0';
+        }
+
+        if ('-' === $number) {
+            return '-0';
+        }
+
+        $nonZero = false;
+
+        for ($position = 0, $characters = strlen($number); $position < $characters; ++$position) {
+            $digit = $number[$position];
+
+            if (!isset(static::$numbers[$digit]) && !(0 === $position && '-' === $digit)) {
+                throw new \InvalidArgumentException(sprintf('Invalid integer part %1$s. Invalid digit %2$s found', $number, $digit));
+            }
+
+            if (false === $nonZero && '0' === $digit) {
+                throw new \InvalidArgumentException('Leading zeros are not allowed');
+            }
+
+            $nonZero = true;
+        }
+
+        return $number;
+    }
+
+    /**
+     * @param string $number
+     *
+     * @return string
+     */
+    private static function parseFractionalPart($number)
+    {
+        if ('' === $number) {
+            return $number;
+        }
+
+        for ($position = 0, $characters = strlen($number); $position < $characters; ++$position) {
+            $digit = $number[$position];
+            if (!isset(static::$numbers[$digit])) {
+                throw new \InvalidArgumentException(sprintf('Invalid fractional part %1$s. Invalid digit %2$s found', $number, $digit));
+            }
+        }
+
+        return $number;
+    }
+
+    /**
+     * @param string $moneyValue
+     * @param int    $targetDigits
+     * @param int    $havingDigits
+     *
+     * @return string
+     */
+    public static function roundMoneyValue($moneyValue, $targetDigits, $havingDigits)
+    {
+        $valueLength = strlen($moneyValue);
+        $shouldRound = $targetDigits < $havingDigits && $valueLength - $havingDigits + $targetDigits > 0;
+
+        if ($shouldRound && $moneyValue[$valueLength - $havingDigits + $targetDigits] >= 5) {
+            $position = $valueLength - $havingDigits + $targetDigits;
+            $addend = 1;
+
+            while ($position > 0) {
+                $newValue = (string) ((int) $moneyValue[$position - 1] + $addend);
+
+                if ($newValue >= 10) {
+                    $moneyValue[$position - 1] = $newValue[1];
+                    $addend = $newValue[0];
+                    --$position;
+                    if ($position === 0) {
+                        $moneyValue = $addend.$moneyValue;
+                    }
+                } else {
+                    if ($moneyValue[$position - 1] === '-') {
+                        $moneyValue[$position - 1] = $newValue[0];
+                        $moneyValue = '-'.$moneyValue;
+                    } else {
+                        $moneyValue[$position - 1] = $newValue[0];
+                    }
+
+                    break;
+                }
+            }
+        }
+
+        return $moneyValue;
+    }
+}

pancake/system/vendor/moneyphp/money/src/PHPUnit/Comparator.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Money\PHPUnit;
+
+use Money\Currencies\AggregateCurrencies;
+use Money\Currencies\BitcoinCurrencies;
+use Money\Currencies\ISOCurrencies;
+use Money\Formatter\IntlMoneyFormatter;
+use Money\Money;
+use SebastianBergmann\Comparator\ComparisonFailure;
+
+/**
+ * The comparator is for comparing Money objects in PHPUnit tests.
+ *
+ * Add this to your bootstrap file:
+ *
+ * \SebastianBergmann\Comparator\Factory::getInstance()->register(new \Money\PHPUnit\Comparator());
+ */
+final class Comparator extends \SebastianBergmann\Comparator\Comparator
+{
+    /**
+     * @var IntlMoneyFormatter
+     */
+    private $formatter;
+
+    public function __construct()
+    {
+        parent::__construct();
+
+        $currencies = new AggregateCurrencies([
+            new ISOCurrencies(),
+            new BitcoinCurrencies(),
+        ]);
+
+        $numberFormatter = new \NumberFormatter('en_US', \NumberFormatter::CURRENCY);
+        $this->formatter = new IntlMoneyFormatter($numberFormatter, $currencies);
+    }
+
+    public function accepts($expected, $actual)
+    {
+        return $expected instanceof Money && $actual instanceof Money;
+    }
+
+    /**
+     * @param Money $expected
+     * @param Money $actual
+     * @param float $delta
+     * @param bool  $canonicalize
+     * @param bool  $ignoreCase
+     */
+    public function assertEquals(
+        $expected,
+        $actual,
+        $delta = 0.0,
+        $canonicalize = false,
+        $ignoreCase = false,
+        array &$processed = []
+    ) {
+        if (!$expected->equals($actual)) {
+            throw new ComparisonFailure($expected, $actual, $this->formatter->format($expected), $this->formatter->format($actual), false, 'Failed asserting that two Money objects are equal.');
+        }
+    }
+}

pancake/system/vendor/moneyphp/money/src/Parser/AggregateMoneyParser.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Money\Parser;
+
+use Money\Currency;
+use Money\Exception;
+use Money\MoneyParser;
+
+/**
+ * Parses a string into a Money object using other parsers.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class AggregateMoneyParser implements MoneyParser
+{
+    /**
+     * @var MoneyParser[]
+     */
+    private $parsers = [];
+
+    /**
+     * @param MoneyParser[] $parsers
+     */
+    public function __construct(array $parsers)
+    {
+        if (empty($parsers)) {
+            throw new \InvalidArgumentException(sprintf('Initialize an empty %s is not possible', self::class));
+        }
+
+        foreach ($parsers as $parser) {
+            if (false === $parser instanceof MoneyParser) {
+                throw new \InvalidArgumentException('All parsers must implement '.MoneyParser::class);
+            }
+
+            $this->parsers[] = $parser;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parse($money, $forceCurrency = null)
+    {
+        if ($forceCurrency !== null && !$forceCurrency instanceof Currency) {
+            @trigger_error('Passing a currency as string is deprecated since 3.1 and will be removed in 4.0. Please pass a '.Currency::class.' instance instead.', E_USER_DEPRECATED);
+            $forceCurrency = new Currency($forceCurrency);
+        }
+
+        foreach ($this->parsers as $parser) {
+            try {
+                return $parser->parse($money, $forceCurrency);
+            } catch (Exception\ParserException $e) {
+            }
+        }
+
+        throw new Exception\ParserException(sprintf('Unable to parse %s', $money));
+    }
+}

pancake/system/vendor/moneyphp/money/src/Parser/BitcoinMoneyParser.php

@@ -0,0 +1,82 @@
+<?php
+
+namespace Money\Parser;
+
+use Money\Currencies\BitcoinCurrencies;
+use Money\Currency;
+use Money\Exception\ParserException;
+use Money\Money;
+use Money\MoneyParser;
+
+/**
+ * Parses Bitcoin currency to Money.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class BitcoinMoneyParser implements MoneyParser
+{
+    /**
+     * @var int
+     */
+    private $fractionDigits;
+
+    /**
+     * @param int $fractionDigits
+     */
+    public function __construct($fractionDigits)
+    {
+        $this->fractionDigits = $fractionDigits;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parse($money, $forceCurrency = null)
+    {
+        if (is_string($money) === false) {
+            throw new ParserException('Formatted raw money should be string, e.g. $1.00');
+        }
+
+        if (strpos($money, BitcoinCurrencies::SYMBOL) === false) {
+            throw new ParserException('Value cannot be parsed as Bitcoin');
+        }
+
+        if ($forceCurrency === null) {
+            $forceCurrency = new Currency(BitcoinCurrencies::CODE);
+        }
+
+        /*
+         * This conversion is only required whilst currency can be either a string or a
+         * Currency object.
+         */
+        $currency = $forceCurrency;
+        if (!$currency instanceof Currency) {
+            @trigger_error('Passing a currency as string is deprecated since 3.1 and will be removed in 4.0. Please pass a '.Currency::class.' instance instead.', E_USER_DEPRECATED);
+            $currency = new Currency($currency);
+        }
+
+        $decimal = str_replace(BitcoinCurrencies::SYMBOL, '', $money);
+        $decimalSeparator = strpos($decimal, '.');
+
+        if (false !== $decimalSeparator) {
+            $decimal = rtrim($decimal, '0');
+            $lengthDecimal = strlen($decimal);
+            $decimal = str_replace('.', '', $decimal);
+            $decimal .= str_pad('', ($lengthDecimal - $decimalSeparator - $this->fractionDigits - 1) * -1, '0');
+        } else {
+            $decimal .= str_pad('', $this->fractionDigits, '0');
+        }
+
+        if (substr($decimal, 0, 1) === '-') {
+            $decimal = '-'.ltrim(substr($decimal, 1), '0');
+        } else {
+            $decimal = ltrim($decimal, '0');
+        }
+
+        if ('' === $decimal) {
+            $decimal = '0';
+        }
+
+        return new Money($decimal, $currency);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Parser/DecimalMoneyParser.php

@@ -0,0 +1,100 @@
+<?php
+
+namespace Money\Parser;
+
+use Money\Currencies;
+use Money\Currency;
+use Money\Exception\ParserException;
+use Money\Money;
+use Money\MoneyParser;
+use Money\Number;
+
+/**
+ * Parses a decimal string into a Money object.
+ *
+ * @author Teoh Han Hui <teohhanhui@gmail.com>
+ */
+final class DecimalMoneyParser implements MoneyParser
+{
+    const DECIMAL_PATTERN = '/^(?P<sign>-)?(?P<digits>0|[1-9]\d*)?\.?(?P<fraction>\d+)?$/';
+
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    public function __construct(Currencies $currencies)
+    {
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parse($money, $forceCurrency = null)
+    {
+        if (!is_string($money)) {
+            throw new ParserException('Formatted raw money should be string, e.g. 1.00');
+        }
+
+        if (null === $forceCurrency) {
+            throw new ParserException('DecimalMoneyParser cannot parse currency symbols. Use forceCurrency argument');
+        }
+
+        /*
+         * This conversion is only required whilst currency can be either a string or a
+         * Currency object.
+         */
+        $currency = $forceCurrency;
+        if (!$currency instanceof Currency) {
+            @trigger_error('Passing a currency as string is deprecated since 3.1 and will be removed in 4.0. Please pass a '.Currency::class.' instance instead.', E_USER_DEPRECATED);
+            $currency = new Currency($currency);
+        }
+
+        $decimal = trim($money);
+
+        if ($decimal === '') {
+            return new Money(0, $currency);
+        }
+
+        $subunit = $this->currencies->subunitFor($currency);
+
+        if (!preg_match(self::DECIMAL_PATTERN, $decimal, $matches) || !isset($matches['digits'])) {
+            throw new ParserException(sprintf('Cannot parse "%s" to Money.', $decimal));
+        }
+
+        $negative = isset($matches['sign']) && $matches['sign'] === '-';
+
+        $decimal = $matches['digits'];
+
+        if ($negative) {
+            $decimal = '-'.$decimal;
+        }
+
+        if (isset($matches['fraction'])) {
+            $fractionDigits = strlen($matches['fraction']);
+            $decimal .= $matches['fraction'];
+            $decimal = Number::roundMoneyValue($decimal, $subunit, $fractionDigits);
+
+            if ($fractionDigits > $subunit) {
+                $decimal = substr($decimal, 0, $subunit - $fractionDigits);
+            } elseif ($fractionDigits < $subunit) {
+                $decimal .= str_pad('', $subunit - $fractionDigits, '0');
+            }
+        } else {
+            $decimal .= str_pad('', $subunit, '0');
+        }
+
+        if ($negative) {
+            $decimal = '-'.ltrim(substr($decimal, 1), '0');
+        } else {
+            $decimal = ltrim($decimal, '0');
+        }
+
+        if ($decimal === '' || $decimal === '-') {
+            $decimal = '0';
+        }
+
+        return new Money($decimal, $currency);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Parser/IntlLocalizedDecimalParser.php

@@ -0,0 +1,94 @@
+<?php
+
+namespace Money\Parser;
+
+use Money\Currencies;
+use Money\Currency;
+use Money\Exception\ParserException;
+use Money\Money;
+use Money\MoneyParser;
+use Money\Number;
+
+/**
+ * Parses a string into a Money object using intl extension.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class IntlLocalizedDecimalParser implements MoneyParser
+{
+    /**
+     * @var \NumberFormatter
+     */
+    private $formatter;
+
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    public function __construct(\NumberFormatter $formatter, Currencies $currencies)
+    {
+        $this->formatter = $formatter;
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parse($money, $forceCurrency = null)
+    {
+        if (!is_string($money)) {
+            throw new ParserException('Formatted raw money should be string, e.g. $1.00');
+        }
+
+        if (null === $forceCurrency) {
+            throw new ParserException('IntlLocalizedDecimalParser cannot parse currency symbols. Use forceCurrency argument');
+        }
+
+        $decimal = $this->formatter->parse($money);
+
+        if (false === $decimal) {
+            throw new ParserException('Cannot parse '.$money.' to Money. '.$this->formatter->getErrorMessage());
+        }
+
+        /*
+         * This conversion is only required whilst currency can be either a string or a
+         * Currency object.
+         */
+        if (!$forceCurrency instanceof Currency) {
+            @trigger_error('Passing a currency as string is deprecated since 3.1 and will be removed in 4.0. Please pass a '.Currency::class.' instance instead.', E_USER_DEPRECATED);
+            $forceCurrency = new Currency($forceCurrency);
+        }
+
+        $decimal = (string) $decimal;
+        $subunit = $this->currencies->subunitFor($forceCurrency);
+        $decimalPosition = strpos($decimal, '.');
+
+        if (false !== $decimalPosition) {
+            $decimalLength = strlen($decimal);
+            $fractionDigits = $decimalLength - $decimalPosition - 1;
+            $decimal = str_replace('.', '', $decimal);
+            $decimal = Number::roundMoneyValue($decimal, $subunit, $fractionDigits);
+
+            if ($fractionDigits > $subunit) {
+                $decimal = substr($decimal, 0, $decimalPosition + $subunit);
+            } elseif ($fractionDigits < $subunit) {
+                $decimal .= str_pad('', $subunit - $fractionDigits, '0');
+            }
+        } else {
+            $decimal .= str_pad('', $subunit, '0');
+        }
+
+        if ('-' === $decimal[0]) {
+            $decimal = '-'.ltrim(substr($decimal, 1), '0');
+        } else {
+            $decimal = ltrim($decimal, '0');
+        }
+
+        if ('' === $decimal) {
+            $decimal = '0';
+        }
+
+        return new Money($decimal, $forceCurrency);
+    }
+}

pancake/system/vendor/moneyphp/money/src/Parser/IntlMoneyParser.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace Money\Parser;
+
+use Money\Currencies;
+use Money\Currency;
+use Money\Exception\ParserException;
+use Money\Money;
+use Money\MoneyParser;
+use Money\Number;
+
+/**
+ * Parses a string into a Money object using intl extension.
+ *
+ * @author Frederik Bosch <f.bosch@genkgo.nl>
+ */
+final class IntlMoneyParser implements MoneyParser
+{
+    /**
+     * @var \NumberFormatter
+     */
+    private $formatter;
+
+    /**
+     * @var Currencies
+     */
+    private $currencies;
+
+    public function __construct(\NumberFormatter $formatter, Currencies $currencies)
+    {
+        $this->formatter = $formatter;
+        $this->currencies = $currencies;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parse($money, $forceCurrency = null)
+    {
+        if (!is_string($money)) {
+            throw new ParserException('Formatted raw money should be string, e.g. $1.00');
+        }
+
+        $currency = null;
+        $decimal = $this->formatter->parseCurrency($money, $currency);
+
+        if (false === $decimal) {
+            throw new ParserException('Cannot parse '.$money.' to Money. '.$this->formatter->getErrorMessage());
+        }
+
+        if (null !== $forceCurrency) {
+            $currency = $forceCurrency;
+        } else {
+            $currency = new Currency($currency);
+        }
+
+        /*
+         * This conversion is only required whilst currency can be either a string or a
+         * Currency object.
+         */
+        if (!$currency instanceof Currency) {
+            @trigger_error('Passing a currency as string is deprecated since 3.1 and will be removed in 4.0. Please pass a '.Currency::class.' instance instead.', E_USER_DEPRECATED);
+            $currency = new Currency($currency);
+        }
+
+        $decimal = (string) $decimal;
+        $subunit = $this->currencies->subunitFor($currency);
+        $decimalPosition = strpos($decimal, '.');
+
+        if (false !== $decimalPosition) {
+            $decimalLength = strlen($decimal);
+            $fractionDigits = $decimalLength - $decimalPosition - 1;
+            $decimal = str_replace('.', '', $decimal);
+            $decimal = Number::roundMoneyValue($decimal, $subunit, $fractionDigits);
+
+            if ($fractionDigits > $subunit) {
+                $decimal = substr($decimal, 0, $decimalPosition + $subunit);
+            } elseif ($fractionDigits < $subunit) {
+                $decimal .= str_pad('', $subunit - $fractionDigits, '0');
+            }
+        } else {
+            $decimal .= str_pad('', $subunit, '0');
+        }
+
+        if ('-' === $decimal[0]) {
+            $decimal = '-'.ltrim(substr($decimal, 1), '0');
+        } else {
+            $decimal = ltrim($decimal, '0');
+        }
+
+        if ('' === $decimal) {
+            $decimal = '0';
+        }
+
+        return new Money($decimal, $currency);
+    }
+}