LocalesManager::__construct() - Code Metrics - locomotivemtl/charcoal-translator - Measure and Improve Code Quality continuously with Scrutinizer

LocalesManager::__construct() A
last analyzed 2018-05-28 01:19 UTC

↳ Parent: LocalesManager

Complexity

Conditions	3
Paths	4

Size

Total Lines	9
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	5
nc	4
nop	1
dl	0
loc	9
rs	9.6666
c	0
b	0
f	0

<?php

namespace Charcoal\Translator;

use InvalidArgumentException;

/**
 * Locales Manager
 *
 * The manager handles the collection of available languages, their definitions,
 * the default language, and tracks the current language.
 */
class LocalesManager
{
    /**
     * Default sorting priority for locales.
     *
     * @const integer
     */
    const DEFAULT_SORT_PRIORITY = 10;

    /**
     * Dictionary of language definitions.
     *
     * @var array
     */
    private $locales;

    /**
     * List of language codes.
     *
     * @var string[]
     */
    private $languages;

    /**
     * Language code for the default locale.
     *
     * @var string
     */
    private $defaultLanguage;

    /**
     * Language code for the current locale.
     *
     * @var string|null
     */
    private $currentLanguage;

    /**
     * Create the Locales Manager with locales and optional options.
     *
     * Required parameters:
     * - **locales** (`array`)
     *
     * Optional parameters:
     * - **default_language** (`string`)
     *   - If none is set, the first language (from _locales_) will be used.
     * - **current_language** (`string`)
     *   - If none is set, then the default language will be used.
     *
     * @param  array $data Constructor dependencies.
     * @throws InvalidArgumentException If the default language is not a valid language.
     */
    public function __construct(array $data)
    {
        $this->setLocales($data['locales']);

        $default = isset($data['default_language']) ? $data['default_language'] : null;
        $this->setDefaultLocale($default);

        $current = isset($data['current_language']) ? $data['current_language'] : null;
        $this->setCurrentLocale($current);
    }

    /**
     * Retrieve the available locales information.
     *
     * @return array
     */
    public function locales()
    {
        return $this->locales;
    }

    /**
     * Retrieve the available locales (language codes).
     *
     * @return string[]
     */
    public function availableLocales()
    {
        return $this->languages;
    }

    /**
     * Set the default language.
     *
     * @param  string|null $lang The default language code.
     *    If NULL, the first language is assigned.
     * @throws InvalidArgumentException If the language is invalid.
     * @return void
     */
    private function setDefaultLocale($lang)
    {
        if ($lang === null) {
            $this->defaultLanguage = $this->languages[0];
            return;
        }

        if (!$this->hasLocale($lang)) {
            if (!is_string($lang)) {

                $lang = is_object($lang) ? get_class($lang) : gettype($lang);
            }

            throw new InvalidArgumentException(sprintf(
                'Unsupported default language; must be one of "%s", received "%s"',
                implode(', ', $this->availableLocales()),
                $lang
            ));
        }

        $this->defaultLanguage = $lang;
    }

    /**
     * Retrieve the default language.
     *
     * @return string
     */
    public function defaultLocale()
    {
        return $this->defaultLanguage;
    }

    /**
     * Set the current language.
     *
     * @param  string|null $lang The current language code.
     *    If NULL, the current language is unset.
     * @throws InvalidArgumentException If the language is invalid.
     * @return void
     */
    public function setCurrentLocale($lang)
    {
        if ($lang === null) {
            $this->currentLanguage = null;
            return;
        }

        if (!$this->hasLocale($lang)) {
            if (!is_string($lang)) {

                $lang = is_object($lang) ? get_class($lang) : gettype($lang);
            }

            throw new InvalidArgumentException(sprintf(
                'Unsupported language; must be one of "%s", received "%s"',
                implode(', ', $this->availableLocales()),
                $lang
            ));
        }

        $this->currentLanguage = $lang;
    }

    /**
     * Retrieve the current language.
     *
     * @return string
     */
    public function currentLocale()
    {
        if ($this->currentLanguage === null) {
            return $this->defaultLanguage;
        }
        return $this->currentLanguage;
    }

    /**
     * Determine if a locale is available.
     *
     * @param  string $lang The language code to check.
     * @return boolean
     */
    public function hasLocale($lang)
    {
        return isset($this->locales[$lang]);
    }

    /**
     * Set the available languages.
     *
     * Ensure that explicitely inactive locales are excluded and that the required
     * values are set on the locales configuration structure.
     *
     * This method is only called from the constructor.
     *
     * @param  array $locales The locales configuration structure.
     * @throws InvalidArgumentException If there are no active locales.
     * @return void
     */
    private function setLocales(array $locales)
    {
        $locales = $this->filterLocales($locales);
        uasort($locales, [ $this, 'sortLocalesByPriority' ]);

        $this->locales   = [];
        $this->languages = [];
        foreach ($locales as $langCode => $locale) {
            $this->locales[$langCode] = $locale;
            $this->languages[] = $langCode;
        }

        if (empty($this->locales)) {
            throw new InvalidArgumentException(
                'Locales can not be empty.'
            );
        }
    }

    /**
     * Filter the available languages.
     *
     * Routine:
     * 1. Removes disabled languages
     * 2. Assigns a priority, if absent
     * 3. Assigns a locale, if absent
     *
     * @param  array $locales The locales configuration structure.
     * @return array The parsed language structures.
     */
    private function filterLocales(array $locales)
    {
        $z = self::DEFAULT_SORT_PRIORITY;

        $filteredLocales = [];
        foreach ($locales as $langCode => $locale) {
            if (isset($locale['active']) && !$locale['active']) {
                continue;
            }

            if (!isset($locale['priority'])) {
                $locale['priority'] = $z++;
            }

            if (!isset($locale['locale'])) {
                $locale['locale'] = $langCode;
            }

            $filteredLocales[$langCode] = $locale;
        }

        return $filteredLocales;
    }

    /**
     * To be called with {@see uasort()}.
     *
     * @param  array $a Sortable action A.
     * @param  array $b Sortable action B.
     * @return integer
     */
    private function sortLocalesByPriority(array $a, array $b)
    {
        $a = isset($a['priority']) ? $a['priority'] : 0;
        $b = isset($b['priority']) ? $b['priority'] : 0;

        if ($a === $b) {
            return 0;
        }
        return ($a < $b) ? (-1) : 1;
    }
}


1			<?php
2
3			namespace Charcoal\Translator;
4
5			use InvalidArgumentException;
6
7			/**
8			* Locales Manager
9			*
10			* The manager handles the collection of available languages, their definitions,
11			* the default language, and tracks the current language.
12			*/
13			class LocalesManager
14			{
15			/**
16			* Default sorting priority for locales.
17			*
18			* @const integer
19			*/
20			const DEFAULT_SORT_PRIORITY = 10;
21
22			/**
23			* Dictionary of language definitions.
24			*
25			* @var array
26			*/
27			private $locales;
28
29			/**
30			* List of language codes.
31			*
32			* @var string[]
33			*/
34			private $languages;
35
36			/**
37			* Language code for the default locale.
38			*
39			* @var string
40			*/
41			private $defaultLanguage;
42
43			/**
44			* Language code for the current locale.
45			*
46			* @var string\|null
47			*/
48			private $currentLanguage;
49
50			/**
51			* Create the Locales Manager with locales and optional options.
52			*
53			* Required parameters:
54			* - locales (`array`)
55			*
56			* Optional parameters:
57			* - default_language (`string`)
58			* - If none is set, the first language (from _locales_) will be used.
59			* - current_language (`string`)
60			* - If none is set, then the default language will be used.
61			*
62			* @param array $data Constructor dependencies.
63			* @throws InvalidArgumentException If the default language is not a valid language.
64			*/
65			public function __construct(array $data)
66			{
67			$this->setLocales($data['locales']);
68
69			$default = isset($data['default_language']) ? $data['default_language'] : null;
70			$this->setDefaultLocale($default);
71
72			$current = isset($data['current_language']) ? $data['current_language'] : null;
73			$this->setCurrentLocale($current);
74			}
75
76			/**
77			* Retrieve the available locales information.
78			*
79			* @return array
80			*/
81			public function locales()
82			{
83			return $this->locales;
84			}
85
86			/**
87			* Retrieve the available locales (language codes).
88			*
89			* @return string[]
90			*/
91			public function availableLocales()
92			{
93			return $this->languages;
94			}
95
96			/**
97			* Set the default language.
98			*
99			* @param string\|null $lang The default language code.
100			* If NULL, the first language is assigned.
101			* @throws InvalidArgumentException If the language is invalid.
102			* @return void
103			*/
104			private function setDefaultLocale($lang)
105			{
106			if ($lang === null) {
107			$this->defaultLanguage = $this->languages[0];
108			return;
109			}
110
111			if (!$this->hasLocale($lang)) {
112			if (!is_string($lang)) {
			0 ignored issues – show introduced 2018-05-28 01:19 UTC by Report Bug Copy Issue Report The condition `is_string($lang)` is always `true`. Loading history...
113			$lang = is_object($lang) ? get_class($lang) : gettype($lang);
114			}
115
116			throw new InvalidArgumentException(sprintf(
117			'Unsupported default language; must be one of "%s", received "%s"',
118			implode(', ', $this->availableLocales()),
119			$lang
120			));
121			}
122
123			$this->defaultLanguage = $lang;
124			}
125
126			/**
127			* Retrieve the default language.
128			*
129			* @return string
130			*/
131			public function defaultLocale()
132			{
133			return $this->defaultLanguage;
134			}
135
136			/**
137			* Set the current language.
138			*
139			* @param string\|null $lang The current language code.
140			* If NULL, the current language is unset.
141			* @throws InvalidArgumentException If the language is invalid.
142			* @return void
143			*/
144			public function setCurrentLocale($lang)
145			{
146			if ($lang === null) {
147			$this->currentLanguage = null;
148			return;
149			}
150
151			if (!$this->hasLocale($lang)) {
152			if (!is_string($lang)) {
			0 ignored issues – show introduced 2018-05-28 01:19 UTC by Report Bug Copy Issue Report The condition `is_string($lang)` is always `true`. Loading history...
153			$lang = is_object($lang) ? get_class($lang) : gettype($lang);
154			}
155
156			throw new InvalidArgumentException(sprintf(
157			'Unsupported language; must be one of "%s", received "%s"',
158			implode(', ', $this->availableLocales()),
159			$lang
160			));
161			}
162
163			$this->currentLanguage = $lang;
164			}
165
166			/**
167			* Retrieve the current language.
168			*
169			* @return string
170			*/
171			public function currentLocale()
172			{
173			if ($this->currentLanguage === null) {
174			return $this->defaultLanguage;
175			}
176			return $this->currentLanguage;
177			}
178
179			/**
180			* Determine if a locale is available.
181			*
182			* @param string $lang The language code to check.
183			* @return boolean
184			*/
185			public function hasLocale($lang)
186			{
187			return isset($this->locales[$lang]);
188			}
189
190			/**
191			* Set the available languages.
192			*
193			* Ensure that explicitely inactive locales are excluded and that the required
194			* values are set on the locales configuration structure.
195			*
196			* This method is only called from the constructor.
197			*
198			* @param array $locales The locales configuration structure.
199			* @throws InvalidArgumentException If there are no active locales.
200			* @return void
201			*/
202			private function setLocales(array $locales)
203			{
204			$locales = $this->filterLocales($locales);
205			uasort($locales, [ $this, 'sortLocalesByPriority' ]);
206
207			$this->locales = [];
208			$this->languages = [];
209			foreach ($locales as $langCode => $locale) {
210			$this->locales[$langCode] = $locale;
211			$this->languages[] = $langCode;
212			}
213
214			if (empty($this->locales)) {
215			throw new InvalidArgumentException(
216			'Locales can not be empty.'
217			);
218			}
219			}
220
221			/**
222			* Filter the available languages.
223			*
224			* Routine:
225			* 1. Removes disabled languages
226			* 2. Assigns a priority, if absent
227			* 3. Assigns a locale, if absent
228			*
229			* @param array $locales The locales configuration structure.
230			* @return array The parsed language structures.
231			*/
232			private function filterLocales(array $locales)
233			{
234			$z = self::DEFAULT_SORT_PRIORITY;
235
236			$filteredLocales = [];
237			foreach ($locales as $langCode => $locale) {
238			if (isset($locale['active']) && !$locale['active']) {
239			continue;
240			}
241
242			if (!isset($locale['priority'])) {
243			$locale['priority'] = $z++;
244			}
245
246			if (!isset($locale['locale'])) {
247			$locale['locale'] = $langCode;
248			}
249
250			$filteredLocales[$langCode] = $locale;
251			}
252
253			return $filteredLocales;
254			}
255
256			/**
257			* To be called with {@see uasort()}.
258			*
259			* @param array $a Sortable action A.
260			* @param array $b Sortable action B.
261			* @return integer
262			*/
263			private function sortLocalesByPriority(array $a, array $b)
264			{
265			$a = isset($a['priority']) ? $a['priority'] : 0;
266			$b = isset($b['priority']) ? $b['priority'] : 0;
267
268			if ($a === $b) {
269			return 0;
270			}
271			return ($a < $b) ? (-1) : 1;
272			}
273			}
274

locomotivemtl / charcoal-translator

LocalesManager::__construct() A last analyzed 2018-05-28 01:19 UTC

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LocalesManager::__construct() A
last analyzed 2018-05-28 01:19 UTC