Money::parseAmount() - Code Metrics - Inspection of "Daily Inspection: Merge branch 'master' into FET-1..." - eventespresso/event-espresso-core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — FET-10619-money-entity (f4b3f8)

unknown

created 2017-11-07 21:49 UTC

Money::parseAmount() B

↳ Parent: Money

Complexity

Conditions	5
Paths	7

Size

Total Lines	39
Code Lines	25

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	5
eloc	25
nc	7
nop	1
dl	0
loc	39
rs	8.439
c	0
b	0
f	0

<?php

namespace EventEspresso\core\domain\values\currency;

use EE_Error;
use EventEspresso\core\exceptions\InvalidDataTypeException;
use EventEspresso\core\exceptions\InvalidInterfaceException;
use EventEspresso\core\services\currency\Calculator;
use EventEspresso\core\services\currency\CreateCurrency;
use EventEspresso\core\services\currency\CreateMoney;
use EventEspresso\core\services\currency\MoneyFormatter;
use InvalidArgumentException;

defined('EVENT_ESPRESSO_VERSION') || exit;



/**
 * Class Money
 * Immutable object representing an amount of money for a particular currency
 *
 * @package       Event Espresso
 * @author        Brent Christensen
 * @since         $VID:$
 */
class Money
{

    /**
     * number of decimal places to be added to currencies for internal computations,
     * but removed before any output or formatting is applied.
     * This allows us to avoid rounding errors during calculations.
     */
    const EXTRA_PRECISION = 3;

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

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

    /**
     * @var Calculator $calculator
     */
    protected $calculator;

    /**
     * @var MoneyFormatter[] $formatters
     */
    protected $formatters;



    /**
     * Money constructor.
     *
     * @param float|int|string $amount money amount IN THE STANDARD UNIT FOR THE CURRENCY ie: dollars, Euros, etc
     *                                 example: $12.5 USD would equate to a value amount of 12.50
     * @param Currency         $currency
     * @param Calculator       $calculator
     * @param MoneyFormatter[] $formatters
     * @throws InvalidDataTypeException
     */
    public function __construct($amount, Currency $currency, Calculator $calculator, array $formatters)
    {
        $this->currency   = $currency;
        $this->amount     = (string) $this->parseAmount($amount);
        $this->calculator = $calculator;
        $this->formatters = $formatters;
    }



    /**
     * @return Calculator
     */
    protected function calculator()
    {
        return $this->calculator;
    }



    /**
     * @return MoneyFormatter[]
     */
    protected function formatters()
    {
        return $this->formatters;
    }



    /**
     * @param float|int|string $amount money amount IN THE STANDARD UNIT FOR THE CURRENCY ie: dollars, Euros, etc
     *                                 example: $12.5 USD would equate to a value amount of 12.50
     * @return float|int|number|string
     * @throws InvalidDataTypeException
     */
    private function parseAmount($amount)
    {
        $type = gettype($amount);
        switch ($type) {
            case 'integer' :
            case 'double' :
            case 'string' :
                break;
            default  :
                throw new InvalidDataTypeException(
                    '$amount',
                    $amount,
                    'integer (or float or string)'
                );
        }
        if ($this->currency->decimalMark() !== '.') {
            // remove thousands separator and replace decimal place with standard decimal.
            $amount = str_replace(
                array(
                    $this->currency->thousands(),
                    $this->currency->decimalMark(),
                ),
                array(
                    '',
                    '.',
                ),
                $amount
            );
        }
        // remove any non numeric values but leave the decimal
        $amount = (float) preg_replace('/([^0-9\\.])/', '', $amount);
        // shift the decimal position by the number of decimal places used internally
        // ex: 12.5 for a currency using 2 decimal places, would become 1250
        // then if our extra internal precision was 3, it would become 1250000
        $amount *= pow(10, $this->precision());
        // then round up the remaining value if there is still a fractional amount left
        $amount = round($amount);
        return $amount;
    }



    /**
     * adds or subtracts additional decimal places based on the value of the Money::EXTRA_PRECISION constant
     *
     * @param bool $positive
     * @return int
     */
    private function precision($positive = true)
    {
        $sign = $positive ? 1 : -1;
        return ((int) $this->currency->decimalPlaces() + Money::EXTRA_PRECISION) * $sign;
    }



    /**
     * Returns the money amount as an unformatted string
     * IF YOU REQUIRE A FORMATTED STRING, THEN USE Money::format()
     *
     * @return string
     */
    public function amount()
    {
        // shift the decimal position BACK by the number of decimal places used internally
        // ex: 1250 for a currency using 2 decimal places, would become 12.50
        $amount = (string) $this->amount * pow(10, $this->precision(false));
        // then shave off our extra internal precision using the number of decimal places for the currency
        $amount = round($amount, $this->currency->decimalPlaces());
        return $amount;
    }



    /**
     * Returns the money SUBUNITS amount as an INTEGER
     *
     * @return integer
     */
    public function amountInSubunits()
    {
        // shift the decimal position BACK
        // by the number of decimal places used internally by the extra internal precision
        // ex: if our extra internal precision was 3,
        // then 1250000 would become 1250
        $amount = (string) $this->amount * pow(10, Money::EXTRA_PRECISION * -1);
        // then shave off anything after the decimal
        $amount = round($amount);
        return $amount;
    }



    /**
     * applies formatting based on the specified formatting level
     * corresponding to one of the constants on \EventEspresso\core\services\currency\MoneyFormatter
     *
     * @param int $formatting_level
     * @return string
     */
    public function format($formatting_level = MoneyFormatter::ADD_THOUSANDS)
    {
        $formatted_amount = $this->amount();
        $formatters       = $this->formatters();
        // if we are applying thousands formatting...
        if ($formatting_level >= MoneyFormatter::ADD_THOUSANDS) {
            // then let's remove decimal formatting since it's included in thousands formatting
            unset($formatters[ MoneyFormatter::DECIMAL_ONLY ]);
        }
        for ($x = 1; $x <= $formatting_level; $x++) {
            if (isset($formatters[ $x ]) && $formatters[ $x ] instanceof MoneyFormatter) {
                $formatted_amount = $formatters[ $x ]->format($formatted_amount, $this->currency);
            }
        }
        return $formatted_amount;
    }



    /**
     * Returns the Currency object for this money
     *
     * @return Currency
     */
    public function currency()
    {
        return $this->currency;
    }



    /**
     * adds the supplied Money amount to this Money amount
     * and returns a new Money object
     *
     * @param Money $other
     * @return Money
     * @throws InvalidArgumentException
     */
    public function add(Money $other)
    {
        $this->verifySameCurrency($other->currency());
        return new Money(
            $this->calculator()->add(
                $this->amount(),
                $other->amount()
            ),
            $this->currency(),
            $this->calculator(),
            $this->formatters()
        );
    }



    /**
     * subtracts the supplied Money amount from this Money amount
     * and returns a new Money object
     *
     * @param Money $other
     * @return Money
     * @throws InvalidArgumentException
     */
    public function subtract(Money $other)
    {
        $this->verifySameCurrency($other->currency());
        return new Money(
            $this->calculator()->subtract(
                $this->amount(),
                $other->amount()
            ),
            $this->currency(),
            $this->calculator(),
            $this->formatters()
        );
    }



    /**
     * multiplies this Money amount by the supplied $multiplier
     * and returns a new Money object
     *
     * @param float|int|string $multiplier
     * @param int              $rounding_mode
     * @return Money
     * @throws InvalidDataTypeException
     */
    public function multiply($multiplier, $rounding_mode = Calculator::ROUND_HALF_UP)
    {
        return new Money(
            $this->calculator()->multiply(
                $this->amount(),
                $multiplier,
                $this->precision(),
                $rounding_mode
            ),
            $this->currency(),
            $this->calculator(),
            $this->formatters()
        );
    }



    /**
     * divides this Money amount by the supplied $divisor
     * and returns a new Money object
     *
     * @param float|int|string $divisor
     * @param int              $rounding_mode
     * @return Money
     * @throws InvalidDataTypeException
     */
    public function divide($divisor, $rounding_mode = Calculator::ROUND_HALF_UP)
    {
        return new Money(
            $this->calculator()->divide(
                $this->amount(),
                $divisor,
                $this->precision(),
                $rounding_mode
            ),
            $this->currency(),
            $this->calculator(),
            $this->formatters()
        );
    }



    /**
     * @param Currency $other_currency
     * @throws InvalidArgumentException
     */
    public function verifySameCurrency(Currency $other_currency)
    {
        if ($this->currency()->equals($other_currency) !== true) {
            throw new InvalidArgumentException(
                esc_html__(
                    'Currencies must be the same in order to add or subtract their values.',
                    'event_espresso'
                )
            );
        }
    }



    /**
     * @return string
     */
    public function __toString()
    {
        return $this->format(MoneyFormatter::DECIMAL_ONLY);
    }



    /**
     * factory method that returns a Money object for the currency specified as if it were a class method
     * example: Money::USD(12.5);
     * money amount IN THE STANDARD UNIT FOR THE CURRENCY ie: dollars, Euros, etc
     * example: $12.5 USD would equate to a value amount of 12.50
     *
     * @param string $currency_code
     * @param array  $arguments
     * @return Money
     * @throws InvalidArgumentException
     * @throws InvalidDataTypeException
     * @throws EE_Error
     * @throws InvalidInterfaceException
     */
    public static function __callStatic($currency_code, $arguments)
    {
        return new Money(
            $arguments[0],
            CreateCurrency::fromCode($currency_code),
            CreateMoney::calculator(),
            CreateMoney::formatters()
        );
    }


}
// End of file Money.php
// Location: core/entities/money/Money.php


1		<?php
2
3		namespace EventEspresso\core\domain\values\currency;
4
5		use EE_Error;
6		use EventEspresso\core\exceptions\InvalidDataTypeException;
7		use EventEspresso\core\exceptions\InvalidInterfaceException;
8		use EventEspresso\core\services\currency\Calculator;
9		use EventEspresso\core\services\currency\CreateCurrency;
10		use EventEspresso\core\services\currency\CreateMoney;
11		use EventEspresso\core\services\currency\MoneyFormatter;
12		use InvalidArgumentException;
13
14		defined('EVENT_ESPRESSO_VERSION') \|\| exit;
15
16
17
18		/**
19		* Class Money
20		* Immutable object representing an amount of money for a particular currency
21		*
22		* @package Event Espresso
23		* @author Brent Christensen
24		* @since $VID:$
25		*/
26		class Money
27		{
28
29		/**
30		* number of decimal places to be added to currencies for internal computations,
31		* but removed before any output or formatting is applied.
32		* This allows us to avoid rounding errors during calculations.
33		*/
34		const EXTRA_PRECISION = 3;
35
36		/**
37		* @var int $amount
38		*/
39		private $amount;
40
41		/**
42		* @var Currency $currency
43		*/
44		private $currency;
45
46		/**
47		* @var Calculator $calculator
48		*/
49		protected $calculator;
50
51		/**
52		* @var MoneyFormatter[] $formatters
53		*/
54		protected $formatters;
55
56
57
58		/**
59		* Money constructor.
60		*
61		* @param float\|int\|string $amount money amount IN THE STANDARD UNIT FOR THE CURRENCY ie: dollars, Euros, etc
62		* example: $12.5 USD would equate to a value amount of 12.50
63		* @param Currency $currency
64		* @param Calculator $calculator
65		* @param MoneyFormatter[] $formatters
66		* @throws InvalidDataTypeException
67		*/
68		public function __construct($amount, Currency $currency, Calculator $calculator, array $formatters)
69		{
70		$this->currency = $currency;
71		$this->amount = (string) $this->parseAmount($amount);
72		$this->calculator = $calculator;
73		$this->formatters = $formatters;
74		}
75
76
77
78		/**
79		* @return Calculator
80		*/
81		protected function calculator()
82		{
83		return $this->calculator;
84		}
85
86
87
88		/**
89		* @return MoneyFormatter[]
90		*/
91		protected function formatters()
92		{
93		return $this->formatters;
94		}
95
96
97
98		/**
99		* @param float\|int\|string $amount money amount IN THE STANDARD UNIT FOR THE CURRENCY ie: dollars, Euros, etc
100		* example: $12.5 USD would equate to a value amount of 12.50
101		* @return float\|int\|number\|string
102		* @throws InvalidDataTypeException
103		*/
104		private function parseAmount($amount)
105		{
106		$type = gettype($amount);
107		switch ($type) {
108		case 'integer' :
109		case 'double' :
110		case 'string' :
111		break;
112		default :
113		throw new InvalidDataTypeException(
114		'$amount',
115		$amount,
116		'integer (or float or string)'
117		);
118		}
119		if ($this->currency->decimalMark() !== '.') {
120		// remove thousands separator and replace decimal place with standard decimal.
121		$amount = str_replace(
122		array(
123		$this->currency->thousands(),
124		$this->currency->decimalMark(),
125		),
126		array(
127		'',
128		'.',
129		),
130		$amount
131		);
132		}
133		// remove any non numeric values but leave the decimal
134		$amount = (float) preg_replace('/([^0-9\\.])/', '', $amount);
135		// shift the decimal position by the number of decimal places used internally
136		// ex: 12.5 for a currency using 2 decimal places, would become 1250
137		// then if our extra internal precision was 3, it would become 1250000
138		$amount *= pow(10, $this->precision());
139		// then round up the remaining value if there is still a fractional amount left
140		$amount = round($amount);
141		return $amount;
142		}
143
144
145
146		/**
147		* adds or subtracts additional decimal places based on the value of the Money::EXTRA_PRECISION constant
148		*
149		* @param bool $positive
150		* @return int
151		*/
152		private function precision($positive = true)
153		{
154		$sign = $positive ? 1 : -1;
155		return ((int) $this->currency->decimalPlaces() + Money::EXTRA_PRECISION) * $sign;
156		}
157
158
159
160		/**
161		* Returns the money amount as an unformatted string
162		* IF YOU REQUIRE A FORMATTED STRING, THEN USE Money::format()
163		*
164		* @return string
165		*/
166		public function amount()
167		{
168		// shift the decimal position BACK by the number of decimal places used internally
169		// ex: 1250 for a currency using 2 decimal places, would become 12.50
170		$amount = (string) $this->amount * pow(10, $this->precision(false));
171		// then shave off our extra internal precision using the number of decimal places for the currency
172		$amount = round($amount, $this->currency->decimalPlaces());
173		return $amount;
174		}
175
176
177
178		/**
179		* Returns the money SUBUNITS amount as an INTEGER
180		*
181		* @return integer
182		*/
183		public function amountInSubunits()
184		{
185		// shift the decimal position BACK
186		// by the number of decimal places used internally by the extra internal precision
187		// ex: if our extra internal precision was 3,
188		// then 1250000 would become 1250
189		$amount = (string) $this->amount * pow(10, Money::EXTRA_PRECISION * -1);
190		// then shave off anything after the decimal
191		$amount = round($amount);
192		return $amount;
193		}
194
195
196
197		/**
198		* applies formatting based on the specified formatting level
199		* corresponding to one of the constants on \EventEspresso\core\services\currency\MoneyFormatter
200		*
201		* @param int $formatting_level
202		* @return string
203		*/
204		public function format($formatting_level = MoneyFormatter::ADD_THOUSANDS)
205		{
206		$formatted_amount = $this->amount();
207		$formatters = $this->formatters();
208		// if we are applying thousands formatting...
209		if ($formatting_level >= MoneyFormatter::ADD_THOUSANDS) {
210		// then let's remove decimal formatting since it's included in thousands formatting
211		unset($formatters[ MoneyFormatter::DECIMAL_ONLY ]);
212		}
213		for ($x = 1; $x <= $formatting_level; $x++) {
214		if (isset($formatters[ $x ]) && $formatters[ $x ] instanceof MoneyFormatter) {
215		$formatted_amount = $formatters[ $x ]->format($formatted_amount, $this->currency);
216		}
217		}
218		return $formatted_amount;
219		}
220
221
222
223		/**
224		* Returns the Currency object for this money
225		*
226		* @return Currency
227		*/
228		public function currency()
229		{
230		return $this->currency;
231		}
232
233
234
235		/**
236		* adds the supplied Money amount to this Money amount
237		* and returns a new Money object
238		*
239		* @param Money $other
240		* @return Money
241		* @throws InvalidArgumentException
242		*/
243	View Code Duplication	public function add(Money $other)
244		{
245		$this->verifySameCurrency($other->currency());
246		return new Money(
247		$this->calculator()->add(
248		$this->amount(),
249		$other->amount()
250		),
251		$this->currency(),
252		$this->calculator(),
253		$this->formatters()
254		);
255		}
256
257
258
259		/**
260		* subtracts the supplied Money amount from this Money amount
261		* and returns a new Money object
262		*
263		* @param Money $other
264		* @return Money
265		* @throws InvalidArgumentException
266		*/
267	View Code Duplication	public function subtract(Money $other)
268		{
269		$this->verifySameCurrency($other->currency());
270		return new Money(
271		$this->calculator()->subtract(
272		$this->amount(),
273		$other->amount()
274		),
275		$this->currency(),
276		$this->calculator(),
277		$this->formatters()
278		);
279		}
280
281
282
283		/**
284		* multiplies this Money amount by the supplied $multiplier
285		* and returns a new Money object
286		*
287		* @param float\|int\|string $multiplier
288		* @param int $rounding_mode
289		* @return Money
290		* @throws InvalidDataTypeException
291		*/
292	View Code Duplication	public function multiply($multiplier, $rounding_mode = Calculator::ROUND_HALF_UP)
293		{
294		return new Money(
295		$this->calculator()->multiply(
296		$this->amount(),
297		$multiplier,
298		$this->precision(),
299		$rounding_mode
300		),
301		$this->currency(),
302		$this->calculator(),
303		$this->formatters()
304		);
305		}
306
307
308
309		/**
310		* divides this Money amount by the supplied $divisor
311		* and returns a new Money object
312		*
313		* @param float\|int\|string $divisor
314		* @param int $rounding_mode
315		* @return Money
316		* @throws InvalidDataTypeException
317		*/
318	View Code Duplication	public function divide($divisor, $rounding_mode = Calculator::ROUND_HALF_UP)
319		{
320		return new Money(
321		$this->calculator()->divide(
322		$this->amount(),
323		$divisor,
324		$this->precision(),
325		$rounding_mode
326		),
327		$this->currency(),
328		$this->calculator(),
329		$this->formatters()
330		);
331		}
332
333
334
335		/**
336		* @param Currency $other_currency
337		* @throws InvalidArgumentException
338		*/
339		public function verifySameCurrency(Currency $other_currency)
340		{
341		if ($this->currency()->equals($other_currency) !== true) {
342		throw new InvalidArgumentException(
343		esc_html__(
344		'Currencies must be the same in order to add or subtract their values.',
345		'event_espresso'
346		)
347		);
348		}
349		}
350
351
352
353		/**
354		* @return string
355		*/
356		public function __toString()
357		{
358		return $this->format(MoneyFormatter::DECIMAL_ONLY);
359		}
360
361
362
363		/**
364		* factory method that returns a Money object for the currency specified as if it were a class method
365		* example: Money::USD(12.5);
366		* money amount IN THE STANDARD UNIT FOR THE CURRENCY ie: dollars, Euros, etc
367		* example: $12.5 USD would equate to a value amount of 12.50
368		*
369		* @param string $currency_code
370		* @param array $arguments
371		* @return Money
372		* @throws InvalidArgumentException
373		* @throws InvalidDataTypeException
374		* @throws EE_Error
375		* @throws InvalidInterfaceException
376		*/
377		public static function __callStatic($currency_code, $arguments)
378		{
379		return new Money(
380		$arguments[0],
381		CreateCurrency::fromCode($currency_code),
382		CreateMoney::calculator(),
383		CreateMoney::formatters()
384		);
385		}
386
387
388		}
389		// End of file Money.php
390		// Location: core/entities/money/Money.php
391

eventespresso / event-espresso-core

Branch — FET-10619-money-entity (f4b3f8)

Money::parseAmount() B

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