Money::fromDecimal() - Code Metrics - Adsmurai/Currency - Measure and Improve Code Quality continuously with Scrutinizer

Money::fromDecimal() A
last analyzed 2019-09-03 07:11 UTC

↳ Parent: Money

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
nc	1
nop	2
dl	0
loc	7
ccs	4
cts	4
cp	1
crap	1
rs	10
c	0
b	0
f	0

<?php

declare(strict_types=1);

namespace Adsmurai\Currency;

use Adsmurai\Currency\Contracts\Money as MoneyContract;
use Adsmurai\Currency\Contracts\MoneyFormat as MoneyFormatInterface;
use Adsmurai\Currency\Contracts\Currency as CurrencyContract;
use InvalidArgumentException;
use Litipk\BigNumbers\Decimal;
use Litipk\BigNumbers\Errors\InfiniteInputError;
use Litipk\BigNumbers\Errors\NaNInputError;

final class Money implements MoneyContract
{
    const DECIMAL_NUMBER_REGEXP = '(?P<amount> 0*(([1-9][0-9]*|[0-9])(\.[0-9]+)?))';
    const SIMPLE_CURRENCY_PATTERN = '/^'.self::DECIMAL_NUMBER_REGEXP.'$/x';
    const INNER_FRACTIONAL_DIGITS = 8;

    /** @var Decimal */
    private $amount;

    /** @var CurrencyContract */
    private $currency;

    /**
     * @param Decimal          $amount
     * @param CurrencyContract $currency
     */
    private function __construct(Decimal $amount, CurrencyContract $currency)
    {
        $this->amount = $amount;
        $this->currency = $currency;
    }

    public static function fromFloat(float $amount, CurrencyContract $currency): Money
    {
        try {
            return new self(
                Decimal::fromFloat($amount, self::INNER_FRACTIONAL_DIGITS),
                $currency
            );
        } catch (InfiniteInputError $e) {
            throw new InvalidArgumentException('Currency amounts must be finite', 0, $e);
        } catch (NaNInputError $e) {
            throw new InvalidArgumentException('Currency amounts must be numbers', 0, $e);
        }
    }

    public static function fromFractionalUnits(int $amount, CurrencyContract $currency): Money
    {
        $decimalAmount = Decimal::fromInteger($amount)
            ->div(
                Decimal::fromInteger(10 ** $currency->getNumFractionalDigits()),
                self::INNER_FRACTIONAL_DIGITS
            );

        return new self($decimalAmount, $currency);
    }

    public static function fromString(string $amount, CurrencyContract $currency): Money
    {
        return new self(
            self::extractNumericAmount($amount, $currency),
            $currency
        );
    }

    private static function extractNumericAmount(string $amount, CurrencyContract $currency): Decimal
    {
        if (
            1 === \preg_match(self::SIMPLE_CURRENCY_PATTERN, $amount, $matches) ||
            1 === \preg_match(self::getAmountPlusIsoCodePattern($currency), $amount, $matches) ||
            1 === \preg_match(self::getAmountPlusSymbolPattern($currency), $amount, $matches)
        ) {
            return Decimal::fromString($matches['amount'], self::INNER_FRACTIONAL_DIGITS);
        }

        throw new InvalidArgumentException('Invalid currency value');
    }

    /**
     * @param CurrencyContract $currency
     *
     * @return string
     */
    private static function getAmountPlusIsoCodePattern(CurrencyContract $currency): string
    {
        $amountPlusIsoCodePattern = '/^'.self::DECIMAL_NUMBER_REGEXP.'\s*'.$currency->getISOCode().'$/x';

        return $amountPlusIsoCodePattern;
    }

    private static function getAmountPlusSymbolPattern(CurrencyContract $currency): string
    {
        $escapedSymbol = \preg_quote($currency->getSymbol());

        return (CurrencyContract::BEFORE_PLACEMENT === $currency->getSymbolPlacement())
            ? '/^'.$escapedSymbol.'\s*'.self::DECIMAL_NUMBER_REGEXP.'$/x'
            : '/^'.self::DECIMAL_NUMBER_REGEXP.'\s*'.$escapedSymbol.'$/x';
    }

    public static function fromDecimal(Decimal $amount, CurrencyContract $currency): Money
    {
        return new self(
            Decimal::fromDecimal($amount, self::INNER_FRACTIONAL_DIGITS),
            $currency
        );
    }

    public function getCurrency(): CurrencyContract
    {
        return $this->currency;
    }

    /**
     * {@inheritdoc}
     */
    public function getAmountAsDecimal(): Decimal
    {
        return $this->amount;
    }

    /**
     * {@inheritdoc}
     */
    public function getAmountAsFractionalUnits(): int
    {
        return $this->amount
            ->mul(
                Decimal::fromInteger(10 ** $this->currency->getNumFractionalDigits()),
                self::INNER_FRACTIONAL_DIGITS
            )
            ->asInteger();
    }

    /**
     * {@inheritdoc}
     */
    public function format(MoneyFormatInterface $currencyFormat = null): string
    {
        if (is_null($currencyFormat)) {
            $currencyFormat = MoneyFormat::default();
        }

        $nDecimals = $currencyFormat->getPrecision();
        if (is_null($nDecimals)) {
            $nDecimals = $this->currency->getNumFractionalDigits() + $currencyFormat->getExtraPrecision();
        }

        $amount = Decimal::fromDecimal($this->amount, $nDecimals);

        $number = ('' === $currencyFormat->getThousandsSeparator())
            ? \str_replace('.', $currencyFormat->getDecimalsSeparator(), $amount->__toString())  // This is safer!
            : \number_format(
                $amount->asFloat(),
                $nDecimals,
                $currencyFormat->getDecimalsSeparator(),
                $currencyFormat->getThousandsSeparator()
            );

        return $this->decorate($number, $currencyFormat);
    }

    /**
     * @param string               $number
     * @param MoneyFormatInterface $currencyFormat
     *
     * @return string
     */
    private function decorate(string $number, MoneyFormatInterface $currencyFormat): string
    {
        $separator = (MoneyFormat::DECORATION_WITH_SPACE === $currencyFormat->getDecorationSpace())
            ? ' '
            : '';

        switch ($currencyFormat->getDecorationType()) {
            case MoneyFormat::DECORATION_NO_DECORATION:
                return $number;
            case MoneyFormat::DECORATION_ISO_CODE:
                return $number.$separator.$this->currency->getISOCode();
            default:
                return (CurrencyContract::BEFORE_PLACEMENT === $this->currency->getSymbolPlacement())
                    ? $this->currency->getSymbol().$separator.$number
                    : $number.$separator.$this->currency->getSymbol();
        }
    }

    /**
     * {@inheritdoc}
     */
    public function equals(MoneyContract $currency): bool
    {
        return $currency === $this || (
                $this->amount->equals($currency->getAmountAsDecimal()) &&
                $this->currency->equals($currency->getCurrency())
            );
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Adsmurai\Currency;
6
7		use Adsmurai\Currency\Contracts\Money as MoneyContract;
8		use Adsmurai\Currency\Contracts\MoneyFormat as MoneyFormatInterface;
9		use Adsmurai\Currency\Contracts\Currency as CurrencyContract;
10		use InvalidArgumentException;
11		use Litipk\BigNumbers\Decimal;
12		use Litipk\BigNumbers\Errors\InfiniteInputError;
13		use Litipk\BigNumbers\Errors\NaNInputError;
14
15		final class Money implements MoneyContract
16		{
17		const DECIMAL_NUMBER_REGEXP = '(?P<amount> 0(([1-9][0-9]\|[0-9])(\.[0-9]+)?))';
18		const SIMPLE_CURRENCY_PATTERN = '/^'.self::DECIMAL_NUMBER_REGEXP.'$/x';
19		const INNER_FRACTIONAL_DIGITS = 8;
20
21		/** @var Decimal */
22		private $amount;
23
24		/** @var CurrencyContract */
25		private $currency;
26
27		/**
28		* @param Decimal $amount
29		* @param CurrencyContract $currency
30		*/
31	56	private function __construct(Decimal $amount, CurrencyContract $currency)
32		{
33	56	$this->amount = $amount;
34	56	$this->currency = $currency;
35	56	}
36
37	11	public static function fromFloat(float $amount, CurrencyContract $currency): Money
38		{
39		try {
40	11	return new self(
41	11	Decimal::fromFloat($amount, self::INNER_FRACTIONAL_DIGITS),
42	8	$currency
43		);
44	3	} catch (InfiniteInputError $e) {
45	2	throw new InvalidArgumentException('Currency amounts must be finite', 0, $e);
46	1	} catch (NaNInputError $e) {
47	1	throw new InvalidArgumentException('Currency amounts must be numbers', 0, $e);
48		}
49		}
50
51	8	public static function fromFractionalUnits(int $amount, CurrencyContract $currency): Money
52		{
53	8	$decimalAmount = Decimal::fromInteger($amount)
54	8	->div(
55	8	Decimal::fromInteger(10 ** $currency->getNumFractionalDigits()),
56	8	self::INNER_FRACTIONAL_DIGITS
57		);
58
59	8	return new self($decimalAmount, $currency);
60		}
61
62	64	public static function fromString(string $amount, CurrencyContract $currency): Money
63		{
64	64	return new self(
65	64	self::extractNumericAmount($amount, $currency),
66	32	$currency
67		);
68		}
69
70	64	private static function extractNumericAmount(string $amount, CurrencyContract $currency): Decimal
71		{
72		if (
73	64	1 === \preg_match(self::SIMPLE_CURRENCY_PATTERN, $amount, $matches) \|\|
74	56	1 === \preg_match(self::getAmountPlusIsoCodePattern($currency), $amount, $matches) \|\|
75	64	1 === \preg_match(self::getAmountPlusSymbolPattern($currency), $amount, $matches)
76		) {
77	32	return Decimal::fromString($matches['amount'], self::INNER_FRACTIONAL_DIGITS);
78		}
79
80	32	throw new InvalidArgumentException('Invalid currency value');
81		}
82
83		/**
84		* @param CurrencyContract $currency
85		*
86		* @return string
87		*/
88	56	private static function getAmountPlusIsoCodePattern(CurrencyContract $currency): string
89		{
90	56	$amountPlusIsoCodePattern = '/^'.self::DECIMAL_NUMBER_REGEXP.'\s*'.$currency->getISOCode().'$/x';
91
92	56	return $amountPlusIsoCodePattern;
93		}
94
95	48	private static function getAmountPlusSymbolPattern(CurrencyContract $currency): string
96		{
97	48	$escapedSymbol = \preg_quote($currency->getSymbol());
98
99	48	return (CurrencyContract::BEFORE_PLACEMENT === $currency->getSymbolPlacement())
100	24	? '/^'.$escapedSymbol.'\s*'.self::DECIMAL_NUMBER_REGEXP.'$/x'
101	48	: '/^'.self::DECIMAL_NUMBER_REGEXP.'\s*'.$escapedSymbol.'$/x';
102		}
103
104	8	public static function fromDecimal(Decimal $amount, CurrencyContract $currency): Money
105		{
106	8	return new self(
107	8	Decimal::fromDecimal($amount, self::INNER_FRACTIONAL_DIGITS),
108	8	$currency
109		);
110		}
111
112	9	public function getCurrency(): CurrencyContract
113		{
114	9	return $this->currency;
115		}
116
117		/**
118		* {@inheritdoc}
119		*/
120	13	public function getAmountAsDecimal(): Decimal
121		{
122	13	return $this->amount;
123		}
124
125		/**
126		* {@inheritdoc}
127		*/
128	24	public function getAmountAsFractionalUnits(): int
129		{
130	24	return $this->amount
131	24	->mul(
132	24	Decimal::fromInteger(10 ** $this->currency->getNumFractionalDigits()),
133	24	self::INNER_FRACTIONAL_DIGITS
134		)
135	24	->asInteger();
136		}
137
138		/**
139		* {@inheritdoc}
140		*/
141	126	public function format(MoneyFormatInterface $currencyFormat = null): string
142		{
143	126	if (is_null($currencyFormat)) {
144	24	$currencyFormat = MoneyFormat::default();
145		}
146
147	126	$nDecimals = $currencyFormat->getPrecision();
148	126	if (is_null($nDecimals)) {
149	110	$nDecimals = $this->currency->getNumFractionalDigits() + $currencyFormat->getExtraPrecision();
150		}
151
152	126	$amount = Decimal::fromDecimal($this->amount, $nDecimals);
153
154	126	$number = ('' === $currencyFormat->getThousandsSeparator())
155	110	? \str_replace('.', $currencyFormat->getDecimalsSeparator(), $amount->__toString()) // This is safer!
156	16	: \number_format(
157	16	$amount->asFloat(),
158	16	$nDecimals,
159	16	$currencyFormat->getDecimalsSeparator(),
160	126	$currencyFormat->getThousandsSeparator()
161		);
162
163	126	return $this->decorate($number, $currencyFormat);
164		}
165
166		/**
167		* @param string $number
168		* @param MoneyFormatInterface $currencyFormat
169		*
170		* @return string
171		*/
172	126	private function decorate(string $number, MoneyFormatInterface $currencyFormat): string
173		{
174	126	$separator = (MoneyFormat::DECORATION_WITH_SPACE === $currencyFormat->getDecorationSpace())
175	3	? ' '
176	126	: '';
177
178	126	switch ($currencyFormat->getDecorationType()) {
179	126	case MoneyFormat::DECORATION_NO_DECORATION:
180	24	return $number;
181	102	case MoneyFormat::DECORATION_ISO_CODE:
182	26	return $number.$separator.$this->currency->getISOCode();
183		default:
184	76	return (CurrencyContract::BEFORE_PLACEMENT === $this->currency->getSymbolPlacement())
185	18	? $this->currency->getSymbol().$separator.$number
186	76	: $number.$separator.$this->currency->getSymbol();
187		}
188		}
189
190		/**
191		* {@inheritdoc}
192		*/
193	12	public function equals(MoneyContract $currency): bool
194		{
195	12	return $currency === $this \|\| (
196	12	$this->amount->equals($currency->getAmountAsDecimal()) &&
197	12	$this->currency->equals($currency->getCurrency())
198		);
199		}
200		}
201

Adsmurai / Currency

Money::fromDecimal() A last analyzed 2019-09-03 07:11 UTC

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like

Money::fromDecimal() A
last analyzed 2019-09-03 07:11 UTC