ConsoleColor::process256ColorStyle() - Code Metrics - Inspection of "mod" - alecrabbit/php-console-colour - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( c7ca74...f0db67 )

by Alec

created 2019-03-31 16:04 UTC

ConsoleColor::process256ColorStyle() A

↳ Parent: ConsoleColor

Complexity

Conditions	2
Paths	1

Size

Total Lines	8
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	2

Importance

Changes

Metric	Value
cc	2
eloc	6
nc	1
nop	1
dl	0
loc	8
ccs	6
cts	6
cp	1
crap	2
rs	10
c	0
b	0
f	0

<?php declare(strict_types=1);

namespace AlecRabbit\ConsoleColour;

use AlecRabbit\ConsoleColour\Contracts\ConsoleColorInterface;
use AlecRabbit\ConsoleColour\Contracts\Styles;
use AlecRabbit\ConsoleColour\Exception\InvalidStyleException;

class ConsoleColor implements ConsoleColorInterface
{
    public const ESC_CHAR = "\033"; // "\e" or "\x01b"

    /** @var bool */
    protected $supported;

    /** @var bool */
    protected $force;

    /** @var array */
    protected $themes = [];

    /** @var bool */
    protected $are256ColorsSupported;

    /**
     * ConsoleColor constructor.
     * @param bool $force
     * @param bool $force256Colors
     */
    public function __construct(bool $force = false, bool $force256Colors = false)
    {
        $this->force = $force;
        $this->setColorSupport($force256Colors);
    }

    protected function setColorSupport(bool $force256Colors): void
    {
        $terminal = new Terminal();
        $this->supported = $this->isForced() || $terminal->supportsColor();
        $this->are256ColorsSupported = $force256Colors || $terminal->supports256Color();
    }

    /** {@inheritdoc} */
    public function isForced(): bool
    {
        return $this->force;
    }

    /** {@inheritdoc} */
    public function apply($styles, $text): string
    {
        if (!$this->isForced() && !$this->isSupported()) {
            return $text;
        }

        $sequences =
            $this->getSequencesFrom(
                $this->refineStyles($styles)
            );

        if (empty($sequences)) {
            return $text;
        }

        return $this->applySequences($text, $sequences);
    }

    /** {@inheritdoc} */
    public function isSupported(): bool
    {
        return $this->supported;
    }

    /**
     * @param array $styles
     * @return array
     * @throws InvalidStyleException
     */
    protected function getSequencesFrom(array $styles): array
    {
        $sequences = [[]];

        foreach ($styles as $style) {
            if (isset($this->themes[$style])) {
                $sequences[] = $this->themeSequence($style);
            } elseif ($this->isValid($style)) {
                $sequences[][] = $this->styleSequence($style);
            } else {
                throw new InvalidStyleException($style);
            }
        }

        $sequences =
            array_filter(
                array_merge(...$sequences),
                /**
                 * @param mixed $val
                 * @return bool
                 * @psalm-suppress MissingClosureParamType
                 */
                static function ($val): bool {
                    return $val !== null;
                }
            );

        return $sequences;
    }

    /**
     * @param string $name
     * @return string[]|null[]
     */
    protected function themeSequence($name): array
    {
        $sequences = [];
        foreach ($this->themes[$name] as $style) {
            $sequences[] = $this->styleSequence($style);
        }
        return $sequences;
    }

    /**
     * @param string $style
     * @return null|string
     */
    protected function styleSequence($style): ?string
    {
        if (\array_key_exists($style, static::CODES)) {
            return static::CODES[$style];
        }

        if (!$this->are256ColorsSupported()) {
            return null;
        }

        return
            $this->process256ColorStyle($style);
    }

    /** {@inheritdoc} */
    public function are256ColorsSupported(): bool
    {
        return $this->are256ColorsSupported;
    }

    /**
     * @param string $style
     * @return string
     */
    protected function process256ColorStyle(string $style): string
    {
        preg_match(self::COLOR256_REGEXP, $style, $matches);
        return
            sprintf(
                '%s;5;%s',
                $matches[1] === self::BG ? self::BACKGROUND : self::FOREGROUND,
                $matches[2]
            );
    }

    /**
     * @param string $style
     * @return bool
     */
    protected function isValid($style): bool
    {
        return
            \array_key_exists($style, static::CODES) || (bool)preg_match(self::COLOR256_REGEXP, $style);
    }

    /**
     * @param int|string|array $styles
     * @return array
     */
    protected function refineStyles($styles): array
    {
        if (\is_int($styles) || \is_string($styles)) {
            $styles = [$styles];
        }
        $this->assertStyles($styles);
        return $styles;
    }

    /**
     * @param mixed $styles
     */
    protected function assertStyles($styles): void
    {
        if (!\is_array($styles)) {
            throw new \InvalidArgumentException('Style must be string or array.');
        }
    }

    /**
     * @param string $text
     * @param array $sequences
     * @return string
     */
    protected function applySequences(string $text, array $sequences): string
    {
        return
            $this->escSequence(implode(';', $sequences)) .
            $text .
            $this->escSequence((string)self::RESET);
    }

    /**
     * @param string $value
     * @return string
     */
    protected function escSequence(string $value): string
    {
        return
            static::ESC_CHAR . '[' . $value . 'm';
    }

    /** {@inheritdoc} */
    public function force(bool $force): void
    {
        $this->force = $force;
    }

    /** {@inheritdoc} */
    public function getThemes(): array
    {
        return $this->themes;
    }

    /** {@inheritdoc} */
    public function setThemes(array $themes): void
    {
        $this->themes = [];
        foreach ($themes as $name => $styles) {
            $this->addTheme($name, $styles);
        }
    }

    /** {@inheritdoc} */
    public function addTheme($name, $styles): void
    {
        $styles = $this->refineStyles($styles);

        foreach ($styles as $style) {
            if (!$this->isValid($style)) {
                throw new InvalidStyleException($style);
            }
        }

        $this->themes[$name] = $styles;
    }

    /** {@inheritdoc} */
    public function hasTheme($name): bool
    {
        return isset($this->themes[$name]);
    }

    /** {@inheritdoc} */
    public function removeTheme($name): void
    {
        unset($this->themes[$name]);
    }

    /** {@inheritdoc} */
    public function getPossibleStyles(): array
    {
        return Styles::NAMES;
    }
}


1		<?php declare(strict_types=1);
2
3		namespace AlecRabbit\ConsoleColour;
4
5		use AlecRabbit\ConsoleColour\Contracts\ConsoleColorInterface;
6		use AlecRabbit\ConsoleColour\Contracts\Styles;
7		use AlecRabbit\ConsoleColour\Exception\InvalidStyleException;
8
9		class ConsoleColor implements ConsoleColorInterface
10		{
11		public const ESC_CHAR = "\033"; // "\e" or "\x01b"
12
13		/** @var bool */
14		protected $supported;
15
16		/** @var bool */
17		protected $force;
18
19		/** @var array */
20		protected $themes = [];
21
22		/** @var bool */
23		protected $are256ColorsSupported;
24
25		/**
26		* ConsoleColor constructor.
27		* @param bool $force
28		* @param bool $force256Colors
29		*/
30	75	public function __construct(bool $force = false, bool $force256Colors = false)
31		{
32	75	$this->force = $force;
33	75	$this->setColorSupport($force256Colors);
34	75	}
35
36	75	protected function setColorSupport(bool $force256Colors): void
37		{
38	75	$terminal = new Terminal();
39	75	$this->supported = $this->isForced() \|\| $terminal->supportsColor();
40	75	$this->are256ColorsSupported = $force256Colors \|\| $terminal->supports256Color();
41	75	}
42
43		/** {@inheritdoc} */
44	75	public function isForced(): bool
45		{
46	75	return $this->force;
47		}
48
49		/** {@inheritdoc} */
50	55	public function apply($styles, $text): string
51		{
52	55	if (!$this->isForced() && !$this->isSupported()) {
53	3	return $text;
54		}
55
56		$sequences =
57	52	$this->getSequencesFrom(
58	52	$this->refineStyles($styles)
59		);
60
61	43	if (empty($sequences)) {
62	6	return $text;
63		}
64
65	37	return $this->applySequences($text, $sequences);
66		}
67
68		/** {@inheritdoc} */
69	7	public function isSupported(): bool
70		{
71	7	return $this->supported;
72		}
73
74		/**
75		* @param array $styles
76		* @return array
77		* @throws InvalidStyleException
78		*/
79	49	protected function getSequencesFrom(array $styles): array
80		{
81	49	$sequences = [[]];
82
83	49	foreach ($styles as $style) {
84	49	if (isset($this->themes[$style])) {
85	14	$sequences[] = $this->themeSequence($style);
86	38	} elseif ($this->isValid($style)) {
87	32	$sequences[][] = $this->styleSequence($style);
88		} else {
89	6	throw new InvalidStyleException($style);
90		}
91		}
92
93		$sequences =
94	43	array_filter(
95	43	array_merge(...$sequences),
96		/**
97		* @param mixed $val
98		* @return bool
99		* @psalm-suppress MissingClosureParamType
100		*/
101		static function ($val): bool {
102	43	return $val !== null;
103	43	}
104		);
105
106	43	return $sequences;
107		}
108
109		/**
110		* @param string $name
111		* @return string[]\|null[]
112		*/
113	14	protected function themeSequence($name): array
114		{
115	14	$sequences = [];
116	14	foreach ($this->themes[$name] as $style) {
117	14	$sequences[] = $this->styleSequence($style);
118		}
119	14	return $sequences;
120		}
121
122		/**
123		* @param string $style
124		* @return null\|string
125		*/
126	43	protected function styleSequence($style): ?string
127		{
128	43	if (\array_key_exists($style, static::CODES)) {
129	31	return static::CODES[$style];
130		}
131
132	12	if (!$this->are256ColorsSupported()) {
133	3	return null;
134		}
135
136		return
137	9	$this->process256ColorStyle($style);
138		}
139
140		/** {@inheritdoc} */
141	3	public function are256ColorsSupported(): bool
142		{
143	3	return $this->are256ColorsSupported;
144		}
145
146		/**
147		* @param string $style
148		* @return string
149		*/
150	9	protected function process256ColorStyle(string $style): string
151		{
152	9	preg_match(self::COLOR256_REGEXP, $style, $matches);
153		return
154	9	sprintf(
155	9	'%s;5;%s',
156	9	$matches[1] === self::BG ? self::BACKGROUND : self::FOREGROUND,
157	9	$matches[2]
158		);
159		}
160
161		/**
162		* @param string $style
163		* @return bool
164		*/
165	59	protected function isValid($style): bool
166		{
167		return
168	59	\array_key_exists($style, static::CODES) \|\| (bool)preg_match(self::COLOR256_REGEXP, $style);
169		}
170
171		/**
172		* @param int\|string\|array $styles
173		* @return array
174		*/
175	62	protected function refineStyles($styles): array
176		{
177	62	if (\is_int($styles) \|\| \is_string($styles)) {
178	38	$styles = [$styles];
179		}
180	62	$this->assertStyles($styles);
181	59	return $styles;
182		}
183
184		/**
185		* @param mixed $styles
186		*/
187	62	protected function assertStyles($styles): void
188		{
189	62	if (!\is_array($styles)) {
190	3	throw new \InvalidArgumentException('Style must be string or array.');
191		}
192	59	}
193
194		/**
195		* @param string $text
196		* @param array $sequences
197		* @return string
198		*/
199	37	protected function applySequences(string $text, array $sequences): string
200		{
201		return
202	37	$this->escSequence(implode(';', $sequences)) .
203	37	$text .
204	37	$this->escSequence((string)self::RESET);
205		}
206
207		/**
208		* @param string $value
209		* @return string
210		*/
211	37	protected function escSequence(string $value): string
212		{
213		return
214	37	static::ESC_CHAR . '[' . $value . 'm';
215		}
216
217		/** {@inheritdoc} */
218	6	public function force(bool $force): void
219		{
220	6	$this->force = $force;
221	6	}
222
223		/** {@inheritdoc} */
224	1	public function getThemes(): array
225		{
226	1	return $this->themes;
227		}
228
229		/** {@inheritdoc} */
230	3	public function setThemes(array $themes): void
231		{
232	3	$this->themes = [];
233	3	foreach ($themes as $name => $styles) {
234	3	$this->addTheme($name, $styles);
235		}
236	3	}
237
238		/** {@inheritdoc} */
239	26	public function addTheme($name, $styles): void
240		{
241	26	$styles = $this->refineStyles($styles);
242
243	26	foreach ($styles as $style) {
244	26	if (!$this->isValid($style)) {
245	3	throw new InvalidStyleException($style);
246		}
247		}
248
249	23	$this->themes[$name] = $styles;
250	23	}
251
252		/** {@inheritdoc} */
253	3	public function hasTheme($name): bool
254		{
255	3	return isset($this->themes[$name]);
256		}
257
258		/** {@inheritdoc} */
259	3	public function removeTheme($name): void
260		{
261	3	unset($this->themes[$name]);
262	3	}
263
264		/** {@inheritdoc} */
265	3	public function getPossibleStyles(): array
266		{
267	3	return Styles::NAMES;
268		}
269		}
270

alecrabbit / php-console-colour

Push — master ( c7ca74...f0db67 )

ConsoleColor::process256ColorStyle() A

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