VatCalculator::getTaxRateForCountry() - Code Metrics - Inspection of "Merge pull request #25 from mpociot/analysis-XkYpQ..." - mpociot/vat-calculator - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 42a773...a9c19a )

by Marcel

created 2016-06-16 09:02 UTC

VatCalculator::getTaxRateForCountry() B

↳ Parent: VatCalculator

Complexity

Conditions	6
Paths	4

Size

Total Lines	12
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes	5
Bugs	1	Features	1

Metric	Value
cc	6
eloc	7
c	5
b	1
f	1
nc	4
nop	2
dl	0
loc	12
rs	8.8571

<?php

namespace Mpociot\VatCalculator;

use Illuminate\Contracts\Config\Repository;
use Mpociot\VatCalculator\Exceptions\VATCheckUnavailableException;
use SoapClient;
use SoapFault;

class VatCalculator
{
    /**
     * VAT Service check URL provided by the EU.
     */
    const VAT_SERVICE_URL = 'http://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl';

    /**
     * We're using the free ip2c service to lookup IP 2 country.
     */
    const GEOCODE_SERVICE_URL = 'http://ip2c.org/';

    protected $soapClient;

    /**
     * All available tax rules.
     *
     * @var array
     */
    protected $taxRules = [
        'AT' => 0.20,
        'BE' => 0.21,
        'BG' => 0.20,
        'CY' => 0.19,
        'CZ' => 0.21,
        'DE' => 0.19,
        'DK' => 0.25,
        'EE' => 0.20,
        'EL' => 0.23,
        'ES' => 0.21,
        'FI' => 0.24,
        'FR' => 0.20,
        'GB' => 0.20,
        'GR' => 0.23,
        'IE' => 0.23,
        'IT' => 0.22,
        'HR' => 0.25,
        'HU' => 0.27,
        'LV' => 0.21,
        'LT' => 0.21,
        'LU' => 0.17,
        'MT' => 0.18,
        'NL' => 0.21,
        'NO' => 0.25,
        'PL' => 0.23,
        'PT' => 0.23,
        'RO' => 0.20,
        'SE' => 0.25,
        'SK' => 0.20,
        'SI' => 0.22,
    ];

    /**
     * @var float
     */
    protected $netPrice = 0.0;

    /**
     * @var string
     */
    protected $countryCode;

    /**
     * @var Repository
     */
    protected $config;

    /**
     * @var float
     */
    protected $taxValue = 0;

    /**
     * @var float
     */
    protected $taxRate = 0;

    /**
     * The calculate net + tax value.
     *
     * @var float
     */
    protected $value = 0;

    /**
     * @var bool
     */
    protected $company = false;

    /**
     * @var string
     */
    protected $businessCountryCode;

    /**
     * @param \Illuminate\Contracts\Config\Repository
     */
    public function __construct($config = null)
    {
        $this->config = $config;

        $businessCountryKey = 'vat_calculator.business_country_code';
        if (isset($this->config) && $this->config->has($businessCountryKey)) {
            $this->setBusinessCountryCode($this->config->get($businessCountryKey, ''));
        }

        try {
            $this->soapClient = new SoapClient(self::VAT_SERVICE_URL);
        } catch (SoapFault $e) {
            $this->soapClient = false;
        }
    }

    /**
     * Finds the client IP address.
     *
     * @return mixed
     */
    private function getClientIP()
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
    {
        if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && $_SERVER['HTTP_X_FORWARDED_FOR']) {
            $clientIpAddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
        } elseif (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR']) {
            $clientIpAddress = $_SERVER['REMOTE_ADDR'];
        } else {
            $clientIpAddress = '';
        }

        return $clientIpAddress;
    }

    /**
     * Returns the ISO 3166-1 alpha-2 two letter
     * country code for the client IP. If the
     * IP can't be resolved it returns false.
     *
     * @return bool|string
     */
    public function getIPBasedCountry()
    {
        $ip = $this->getClientIP();
        $url = self::GEOCODE_SERVICE_URL.$ip;
        $result = file_get_contents($url);
        switch ($result[0]) {
            case '1':
                $data = explode(';', $result);

                return $data[1];
                break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
            default:
                return false;
        }
    }

    /**
     * Determines if you need to collect VAT for the given country code.
     *
     * @param $countryCode
     *
     * @return bool
     */
    public function shouldCollectVAT($countryCode)
    {
        $taxKey = 'vat_calculator.rules.'.strtoupper($countryCode);

        return isset($this->taxRules[strtoupper($countryCode)]) || (isset($this->config) && $this->config->has($taxKey));
    }

    /**
     * Calculate the VAT based on the net price, country code and indication if the
     * customer is a company or not.
     *
     * @param int|float   $netPrice    The net price to use for the calculation
     * @param null|string $countryCode The country code to use for the rate lookup
     * @param null|bool   $company
     *
     * @return float
     */
    public function calculate($netPrice, $countryCode = null, $company = null)
    {
        if ($countryCode) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            $this->setCountryCode($countryCode);
        }
        if (!is_null($company) && $company !== $this->isCompany()) {
            $this->setCompany($company);
        }
        $this->netPrice = floatval($netPrice);
        $this->taxRate = $this->getTaxRateForCountry($this->getCountryCode(), $this->isCompany());
        $this->taxValue = $this->taxRate * $this->netPrice;
        $this->value = $this->netPrice + $this->taxValue;

        return $this->value;
    }

    /**
     * @return float
     */
    public function getNetPrice()
    {
        return $this->netPrice;
    }

    /**
     * @return string
     */
    public function getCountryCode()
    {
        return strtoupper($this->countryCode);
    }

    /**
     * @param mixed $countryCode
     */
    public function setCountryCode($countryCode)
    {
        $this->countryCode = $countryCode;
    }

    /**
     * @return float
     */
    public function getTaxRate()
    {
        return $this->taxRate;
    }

    /**
     * @return bool
     */
    public function isCompany()
    {
        return $this->company;
    }

    /**
     * @param bool $company
     */
    public function setCompany($company)
    {
        $this->company = $company;
    }

    /**
     * @param string $businessCountryCode
     */
    public function setBusinessCountryCode($businessCountryCode)
    {
        $this->businessCountryCode = $businessCountryCode;
    }

    /**
     * Returns the tax rate for the given country.
     *
     * @param string     $countryCode
     * @param bool|false $company
     *
     * @return float
     */
    public function getTaxRateForCountry($countryCode, $company = false)
    {
        if ($company && strtoupper($countryCode) !== strtoupper($this->businessCountryCode)) {
            return 0;
        }
        $taxKey = 'vat_calculator.rules.'.strtoupper($countryCode);
        if (isset($this->config) && $this->config->has($taxKey)) {
            return $this->config->get($taxKey, 0);
        }

        return isset($this->taxRules[strtoupper($countryCode)]) ? $this->taxRules[strtoupper($countryCode)] : 0;
    }

    /**
     * @return float
     */
    public function getTaxValue()
    {
        return $this->taxValue;
    }

    /**
     * @param $vatNumber
     *
     * @throws VATCheckUnavailableException
     *
     * @return bool
     */
    public function isValidVATNumber($vatNumber)
    {
        $vatNumber = str_replace([' ', '-', '.', ','], '', trim($vatNumber));
        $countryCode = substr($vatNumber, 0, 2);
        $vatNumber = substr($vatNumber, 2);

        $client = $this->soapClient;
        if ($client) {
            try {
                $result = $client->checkVat([
                    'countryCode' => $countryCode,
                    'vatNumber'   => $vatNumber,
                ]);

                return $result->valid;
            } catch (SoapFault $e) {
                return false;
            }
        }
        throw new VATCheckUnavailableException('The VAT check service is currently unavailable. Please try again later.');
    }

    /**
     * @param SoapClient $soapClient
     */
    public function setSoapClient($soapClient)
    {
        $this->soapClient = $soapClient;
    }
}


1			<?php
2
3			namespace Mpociot\VatCalculator;
4
5			use Illuminate\Contracts\Config\Repository;
6			use Mpociot\VatCalculator\Exceptions\VATCheckUnavailableException;
7			use SoapClient;
8			use SoapFault;
9
10			class VatCalculator
11			{
12			/**
13			* VAT Service check URL provided by the EU.
14			*/
15			const VAT_SERVICE_URL = 'http://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl';
16
17			/**
18			* We're using the free ip2c service to lookup IP 2 country.
19			*/
20			const GEOCODE_SERVICE_URL = 'http://ip2c.org/';
21
22			protected $soapClient;
23
24			/**
25			* All available tax rules.
26			*
27			* @var array
28			*/
29			protected $taxRules = [
30			'AT' => 0.20,
31			'BE' => 0.21,
32			'BG' => 0.20,
33			'CY' => 0.19,
34			'CZ' => 0.21,
35			'DE' => 0.19,
36			'DK' => 0.25,
37			'EE' => 0.20,
38			'EL' => 0.23,
39			'ES' => 0.21,
40			'FI' => 0.24,
41			'FR' => 0.20,
42			'GB' => 0.20,
43			'GR' => 0.23,
44			'IE' => 0.23,
45			'IT' => 0.22,
46			'HR' => 0.25,
47			'HU' => 0.27,
48			'LV' => 0.21,
49			'LT' => 0.21,
50			'LU' => 0.17,
51			'MT' => 0.18,
52			'NL' => 0.21,
53			'NO' => 0.25,
54			'PL' => 0.23,
55			'PT' => 0.23,
56			'RO' => 0.20,
57			'SE' => 0.25,
58			'SK' => 0.20,
59			'SI' => 0.22,
60			];
61
62			/**
63			* @var float
64			*/
65			protected $netPrice = 0.0;
66
67			/**
68			* @var string
69			*/
70			protected $countryCode;
71
72			/**
73			* @var Repository
74			*/
75			protected $config;
76
77			/**
78			* @var float
79			*/
80			protected $taxValue = 0;
81
82			/**
83			* @var float
84			*/
85			protected $taxRate = 0;
86
87			/**
88			* The calculate net + tax value.
89			*
90			* @var float
91			*/
92			protected $value = 0;
93
94			/**
95			* @var bool
96			*/
97			protected $company = false;
98
99			/**
100			* @var string
101			*/
102			protected $businessCountryCode;
103
104			/**
105			* @param \Illuminate\Contracts\Config\Repository
106			*/
107			public function __construct($config = null)
108			{
109			$this->config = $config;
110
111			$businessCountryKey = 'vat_calculator.business_country_code';
112			if (isset($this->config) && $this->config->has($businessCountryKey)) {
113			$this->setBusinessCountryCode($this->config->get($businessCountryKey, ''));
114			}
115
116			try {
117			$this->soapClient = new SoapClient(self::VAT_SERVICE_URL);
118			} catch (SoapFault $e) {
119			$this->soapClient = false;
120			}
121			}
122
123			/**
124			* Finds the client IP address.
125			*
126			* @return mixed
127			*/
128			private function getClientIP()
			0 ignored issues – show Coding Style introduced 2016-01-11 14:38 UTC by Report Bug Copy Issue Report `getClientIP` uses the super-global variable `$_SERVER` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
129			{
130			if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && $_SERVER['HTTP_X_FORWARDED_FOR']) {
131			$clientIpAddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
132			} elseif (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR']) {
133			$clientIpAddress = $_SERVER['REMOTE_ADDR'];
134			} else {
135			$clientIpAddress = '';
136			}
137
138			return $clientIpAddress;
139			}
140
141			/**
142			* Returns the ISO 3166-1 alpha-2 two letter
143			* country code for the client IP. If the
144			* IP can't be resolved it returns false.
145			*
146			* @return bool\|string
147			*/
148			public function getIPBasedCountry()
149			{
150			$ip = $this->getClientIP();
151			$url = self::GEOCODE_SERVICE_URL.$ip;
152			$result = file_get_contents($url);
153			switch ($result[0]) {
154			case '1':
155			$data = explode(';', $result);
156
157			return $data[1];
158			break;
			0 ignored issues – show Unused Code introduced 2016-01-11 14:38 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
159			default:
160			return false;
161			}
162			}
163
164			/**
165			* Determines if you need to collect VAT for the given country code.
166			*
167			* @param $countryCode
168			*
169			* @return bool
170			*/
171			public function shouldCollectVAT($countryCode)
172			{
173			$taxKey = 'vat_calculator.rules.'.strtoupper($countryCode);
174
175			return isset($this->taxRules[strtoupper($countryCode)]) \|\| (isset($this->config) && $this->config->has($taxKey));
176			}
177
178			/**
179			* Calculate the VAT based on the net price, country code and indication if the
180			* customer is a company or not.
181			*
182			* @param int\|float $netPrice The net price to use for the calculation
183			* @param null\|string $countryCode The country code to use for the rate lookup
184			* @param null\|bool $company
185			*
186			* @return float
187			*/
188			public function calculate($netPrice, $countryCode = null, $company = null)
189			{
190			if ($countryCode) {
			0 ignored issues – show Bug Best Practice introduced 2016-01-11 14:38 UTC by Report Bug Copy Issue Report The expression `$countryCode` of type `null\|string` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
191			$this->setCountryCode($countryCode);
192			}
193			if (!is_null($company) && $company !== $this->isCompany()) {
194			$this->setCompany($company);
195			}
196			$this->netPrice = floatval($netPrice);
197			$this->taxRate = $this->getTaxRateForCountry($this->getCountryCode(), $this->isCompany());
198			$this->taxValue = $this->taxRate * $this->netPrice;
199			$this->value = $this->netPrice + $this->taxValue;
200
201			return $this->value;
202			}
203
204			/**
205			* @return float
206			*/
207			public function getNetPrice()
208			{
209			return $this->netPrice;
210			}
211
212			/**
213			* @return string
214			*/
215			public function getCountryCode()
216			{
217			return strtoupper($this->countryCode);
218			}
219
220			/**
221			* @param mixed $countryCode
222			*/
223			public function setCountryCode($countryCode)
224			{
225			$this->countryCode = $countryCode;
226			}
227
228			/**
229			* @return float
230			*/
231			public function getTaxRate()
232			{
233			return $this->taxRate;
234			}
235
236			/**
237			* @return bool
238			*/
239			public function isCompany()
240			{
241			return $this->company;
242			}
243
244			/**
245			* @param bool $company
246			*/
247			public function setCompany($company)
248			{
249			$this->company = $company;
250			}
251
252			/**
253			* @param string $businessCountryCode
254			*/
255			public function setBusinessCountryCode($businessCountryCode)
256			{
257			$this->businessCountryCode = $businessCountryCode;
258			}
259
260			/**
261			* Returns the tax rate for the given country.
262			*
263			* @param string $countryCode
264			* @param bool\|false $company
265			*
266			* @return float
267			*/
268			public function getTaxRateForCountry($countryCode, $company = false)
269			{
270			if ($company && strtoupper($countryCode) !== strtoupper($this->businessCountryCode)) {
271			return 0;
272			}
273			$taxKey = 'vat_calculator.rules.'.strtoupper($countryCode);
274			if (isset($this->config) && $this->config->has($taxKey)) {
275			return $this->config->get($taxKey, 0);
276			}
277
278			return isset($this->taxRules[strtoupper($countryCode)]) ? $this->taxRules[strtoupper($countryCode)] : 0;
279			}
280
281			/**
282			* @return float
283			*/
284			public function getTaxValue()
285			{
286			return $this->taxValue;
287			}
288
289			/**
290			* @param $vatNumber
291			*
292			* @throws VATCheckUnavailableException
293			*
294			* @return bool
295			*/
296			public function isValidVATNumber($vatNumber)
297			{
298			$vatNumber = str_replace([' ', '-', '.', ','], '', trim($vatNumber));
299			$countryCode = substr($vatNumber, 0, 2);
300			$vatNumber = substr($vatNumber, 2);
301
302			$client = $this->soapClient;
303			if ($client) {
304			try {
305			$result = $client->checkVat([
306			'countryCode' => $countryCode,
307			'vatNumber' => $vatNumber,
308			]);
309
310			return $result->valid;
311			} catch (SoapFault $e) {
312			return false;
313			}
314			}
315			throw new VATCheckUnavailableException('The VAT check service is currently unavailable. Please try again later.');
316			}
317
318			/**
319			* @param SoapClient $soapClient
320			*/
321			public function setSoapClient($soapClient)
322			{
323			$this->soapClient = $soapClient;
324			}
325			}
326

mpociot / vat-calculator

Push — master ( 42a773...a9c19a )

VatCalculator::getTaxRateForCountry() B

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Duplication

Importance

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