Passed
Push — analysis-V0GPJ3 ( 4e1d8c )
by Arnaud
06:14 queued 11s
created

Core::sortByDate()   A

Complexity

Conditions 6
Paths 1

Size

Total Lines 19
Code Lines 9

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 6
eloc 9
nc 1
nop 3
dl 0
loc 19
rs 9.2222
c 0
b 0
f 0
1
<?php
2
3
/**
4
 * This file is part of Cecil.
5
 *
6
 * (c) Arnaud Ligny <[email protected]>
7
 *
8
 * For the full copyright and license information, please view the LICENSE
9
 * file that was distributed with this source code.
10
 */
11
12
declare(strict_types=1);
13
14
namespace Cecil\Renderer\Extension;
15
16
use Cecil\Asset;
17
use Cecil\Asset\Image;
18
use Cecil\Builder;
19
use Cecil\Cache;
20
use Cecil\Collection\CollectionInterface;
21
use Cecil\Collection\Page\Collection as PagesCollection;
22
use Cecil\Collection\Page\Page;
23
use Cecil\Collection\Page\Type;
24
use Cecil\Config;
25
use Cecil\Converter\Parsedown;
26
use Cecil\Exception\ConfigException;
27
use Cecil\Exception\RuntimeException;
28
use Cecil\Url;
29
use Cocur\Slugify\Bridge\Twig\SlugifyExtension;
30
use Cocur\Slugify\Slugify;
31
use Highlight\Highlighter;
32
use MatthiasMullie\Minify;
33
use ScssPhp\ScssPhp\Compiler;
34
use ScssPhp\ScssPhp\OutputStyle;
35
use Symfony\Component\VarDumper\Cloner\VarCloner;
36
use Symfony\Component\VarDumper\Dumper\HtmlDumper;
37
use Symfony\Component\Yaml\Exception\ParseException;
38
use Symfony\Component\Yaml\Yaml;
39
use Twig\DeprecatedCallableInfo;
40
41
/**
42
 * Core Twig extension.
43
 *
44
 * This extension provides various utility functions and filters for use in Twig templates,
45
 * including URL generation, asset management, content processing, and more.
46
 */
47
class Core extends SlugifyExtension
48
{
49
    /** @var Builder */
50
    protected $builder;
51
52
    /** @var Config */
53
    protected $config;
54
55
    /** @var Slugify */
56
    private static $slugifier;
57
58
    public function __construct(Builder $builder)
59
    {
60
        if (!self::$slugifier instanceof Slugify) {
61
            self::$slugifier = Slugify::create(['regexp' => Page::SLUGIFY_PATTERN]);
62
        }
63
64
        parent::__construct(self::$slugifier);
65
66
        $this->builder = $builder;
67
        $this->config = $builder->getConfig();
68
    }
69
70
    /**
71
     * {@inheritdoc}
72
     */
73
    public function getName(): string
74
    {
75
        return 'CoreExtension';
76
    }
77
78
    /**
79
     * {@inheritdoc}
80
     */
81
    public function getFunctions()
82
    {
83
        return [
84
            new \Twig\TwigFunction('url', [$this, 'url'], ['needs_context' => true]),
85
            // assets
86
            new \Twig\TwigFunction('asset', [$this, 'asset']),
87
            new \Twig\TwigFunction('html', [$this, 'html'], ['needs_context' => true]),
88
            new \Twig\TwigFunction('css', [$this, 'htmlCss'], ['needs_context' => true]),
89
            new \Twig\TwigFunction('js', [$this, 'htmlJs'], ['needs_context' => true]),
90
            new \Twig\TwigFunction('image', [$this, 'htmlImage'], ['needs_context' => true]),
91
            new \Twig\TwigFunction('video', [$this, 'htmlVideo'], ['needs_context' => true]),
92
            new \Twig\TwigFunction('integrity', [$this, 'integrity']),
93
            new \Twig\TwigFunction('image_srcset', [$this, 'imageSrcset']),
94
            new \Twig\TwigFunction('image_sizes', [$this, 'imageSizes']),
95
            // content
96
            new \Twig\TwigFunction('readtime', [$this, 'readtime']),
97
            new \Twig\TwigFunction('hash', [$this, 'hash']),
98
            // others
99
            new \Twig\TwigFunction('getenv', [$this, 'getEnv']),
100
            new \Twig\TwigFunction('d', [$this, 'varDump'], ['needs_context' => true, 'needs_environment' => true]),
101
            // deprecated
102
            new \Twig\TwigFunction(
103
                'minify',
104
                [$this, 'minify'],
105
                ['deprecation_info' => new DeprecatedCallableInfo('', '', 'minify filter')]
106
            ),
107
            new \Twig\TwigFunction(
108
                'toCSS',
109
                [$this, 'toCss'],
110
                ['deprecation_info' => new DeprecatedCallableInfo('', '', 'to_css filter')]
111
            ),
112
        ];
113
    }
114
115
    /**
116
     * {@inheritdoc}
117
     */
118
    public function getFilters(): array
119
    {
120
        return [
121
            new \Twig\TwigFilter('url', [$this, 'url'], ['needs_context' => true]),
122
            // collections
123
            new \Twig\TwigFilter('sort_by_title', [$this, 'sortByTitle']),
124
            new \Twig\TwigFilter('sort_by_weight', [$this, 'sortByWeight']),
125
            new \Twig\TwigFilter('sort_by_date', [$this, 'sortByDate']),
126
            new \Twig\TwigFilter('filter_by', [$this, 'filterBy']),
127
            // assets
128
            new \Twig\TwigFilter('inline', [$this, 'inline']),
129
            new \Twig\TwigFilter('fingerprint', [$this, 'fingerprint']),
130
            new \Twig\TwigFilter('to_css', [$this, 'toCss']),
131
            new \Twig\TwigFilter('minify', [$this, 'minify']),
132
            new \Twig\TwigFilter('minify_css', [$this, 'minifyCss']),
133
            new \Twig\TwigFilter('minify_js', [$this, 'minifyJs']),
134
            new \Twig\TwigFilter('scss_to_css', [$this, 'scssToCss']),
135
            new \Twig\TwigFilter('sass_to_css', [$this, 'scssToCss']),
136
            new \Twig\TwigFilter('resize', [$this, 'resize']),
137
            new \Twig\TwigFilter('cover', [$this, 'cover']),
138
            new \Twig\TwigFilter('maskable', [$this, 'maskable']),
139
            new \Twig\TwigFilter('dataurl', [$this, 'dataurl']),
140
            new \Twig\TwigFilter('dominant_color', [$this, 'dominantColor']),
141
            new \Twig\TwigFilter('lqip', [$this, 'lqip']),
142
            new \Twig\TwigFilter('webp', [$this, 'webp']),
143
            new \Twig\TwigFilter('avif', [$this, 'avif']),
144
            // content
145
            new \Twig\TwigFilter('slugify', [$this, 'slugifyFilter']),
146
            new \Twig\TwigFilter('excerpt', [$this, 'excerpt']),
147
            new \Twig\TwigFilter('excerpt_html', [$this, 'excerptHtml']),
148
            new \Twig\TwigFilter('markdown_to_html', [$this, 'markdownToHtml']),
149
            new \Twig\TwigFilter('toc', [$this, 'markdownToToc']),
150
            new \Twig\TwigFilter('json_decode', [$this, 'jsonDecode']),
151
            new \Twig\TwigFilter('yaml_parse', [$this, 'yamlParse']),
152
            new \Twig\TwigFilter('preg_split', [$this, 'pregSplit']),
153
            new \Twig\TwigFilter('preg_match_all', [$this, 'pregMatchAll']),
154
            new \Twig\TwigFilter('hex_to_rgb', [$this, 'hexToRgb']),
155
            new \Twig\TwigFilter('splitline', [$this, 'splitLine']),
156
            new \Twig\TwigFilter('iterable', [$this, 'iterable']),
157
            new \Twig\TwigFilter('highlight', [$this, 'highlight']),
158
            new \Twig\TwigFilter('unique', [$this, 'unique']),
159
            // date
160
            new \Twig\TwigFilter('duration_to_iso8601', ['\Cecil\Util\Date', 'durationToIso8601']),
161
            // deprecated
162
            new \Twig\TwigFilter(
163
                'html',
164
                [$this, 'html'],
165
                [
166
                    'needs_context' => true,
167
                    'deprecation_info' => new DeprecatedCallableInfo('', '', 'html function')
168
                ]
169
            ),
170
        ];
171
    }
172
173
    /**
174
     * {@inheritdoc}
175
     */
176
    public function getTests()
177
    {
178
        return [
179
            new \Twig\TwigTest('asset', [$this, 'isAsset']),
180
            new \Twig\TwigTest('image_large', [$this, 'isImageLarge']),
181
            new \Twig\TwigTest('image_square', [$this, 'isImageSquare']),
182
        ];
183
    }
184
185
    /**
186
     * Filters by Section.
187
     */
188
    public function filterBySection(PagesCollection $pages, string $section): CollectionInterface
189
    {
190
        return $this->filterBy($pages, 'section', $section);
191
    }
192
193
    /**
194
     * Filters a pages collection by variable's name/value.
195
     */
196
    public function filterBy(PagesCollection $pages, string $variable, string $value): CollectionInterface
197
    {
198
        $filteredPages = $pages->filter(function (Page $page) use ($variable, $value) {
199
            // is a dedicated getter exists?
200
            $method = 'get' . ucfirst($variable);
201
            if (method_exists($page, $method) && $page->$method() == $value) {
202
                return $page->getType() == Type::PAGE->value && !$page->isVirtual() && true;
203
            }
204
            // or a classic variable
205
            if ($page->getVariable($variable) == $value) {
206
                return $page->getType() == Type::PAGE->value && !$page->isVirtual() && true;
207
            }
208
        });
209
210
        return $filteredPages;
211
    }
212
213
    /**
214
     * Sorts a collection by title.
215
     */
216
    public function sortByTitle(\Traversable $collection): array
217
    {
218
        $sort = \SORT_ASC;
219
220
        $collection = iterator_to_array($collection);
221
        array_multisort(array_keys(/** @scrutinizer ignore-type */ $collection), $sort, \SORT_NATURAL | \SORT_FLAG_CASE, $collection);
0 ignored issues
show
Bug introduced by
SORT_NATURAL | SORT_FLAG_CASE cannot be passed to array_multisort() as the parameter $rest expects a reference. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-type  annotation

221
        array_multisort(array_keys(/** @scrutinizer ignore-type */ $collection), $sort, /** @scrutinizer ignore-type */ \SORT_NATURAL | \SORT_FLAG_CASE, $collection);
Loading history...
Bug introduced by
array_keys($collection) cannot be passed to array_multisort() as the parameter $array expects a reference. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-type  annotation

221
        array_multisort(/** @scrutinizer ignore-type */ array_keys(/** @scrutinizer ignore-type */ $collection), $sort, \SORT_NATURAL | \SORT_FLAG_CASE, $collection);
Loading history...
222
223
        return $collection;
224
    }
225
226
    /**
227
     * Sorts a collection by weight.
228
     *
229
     * @param \Traversable|array $collection
230
     */
231
    public function sortByWeight($collection): array
232
    {
233
        $callback = function ($a, $b) {
234
            if (!isset($a['weight'])) {
235
                $a['weight'] = 0;
236
            }
237
            if (!isset($b['weight'])) {
238
                $a['weight'] = 0;
239
            }
240
            if ($a['weight'] == $b['weight']) {
241
                return 0;
242
            }
243
244
            return $a['weight'] < $b['weight'] ? -1 : 1;
245
        };
246
247
        if (!\is_array($collection)) {
248
            $collection = iterator_to_array($collection);
249
        }
250
        usort(/** @scrutinizer ignore-type */ $collection, $callback);
251
252
        return $collection;
253
    }
254
255
    /**
256
     * Sorts by creation date (or 'updated' date): the most recent first.
257
     */
258
    public function sortByDate(\Traversable $collection, string $variable = 'date', bool $descTitle = false): array
259
    {
260
        $callback = function ($a, $b) use ($variable, $descTitle) {
261
            if ($a[$variable] == $b[$variable]) {
262
                // if dates are equal and "descTitle" is true
263
                if ($descTitle && (isset($a['title']) && isset($b['title']))) {
264
                    return strnatcmp($b['title'], $a['title']);
265
                }
266
267
                return 0;
268
            }
269
270
            return $a[$variable] > $b[$variable] ? -1 : 1;
271
        };
272
273
        $collection = iterator_to_array($collection);
274
        usort(/** @scrutinizer ignore-type */ $collection, $callback);
275
276
        return $collection;
277
    }
278
279
    /**
280
     * Creates an URL.
281
     *
282
     * $options[
283
     *     'canonical' => false,
284
     *     'format'    => 'html',
285
     *     'language'  => null,
286
     * ];
287
     *
288
     * @param array                  $context
289
     * @param Page|Asset|string|null $value
290
     * @param array|null             $options
291
     */
292
    public function url(array $context, $value = null, ?array $options = null): string
293
    {
294
        $optionsLang = [];
295
        $optionsLang['language'] = (string) $context['site']['language'];
296
        $options = array_merge($optionsLang, $options ?? []);
297
298
        return (new Url($this->builder, $value, $options))->getUrl();
299
    }
300
301
    /**
302
     * Creates an Asset (CSS, JS, images, etc.) from a path or an array of paths.
303
     *
304
     * @param string|array $path    File path or array of files path (relative from `assets/` or `static/` dir).
305
     * @param array|null   $options
306
     *
307
     * @return Asset
308
     */
309
    public function asset($path, array|null $options = null): Asset
310
    {
311
        if (!\is_string($path) && !\is_array($path)) {
312
            throw new RuntimeException(\sprintf('Argument of "%s()" must a string or an array.', \Cecil\Util::formatMethodName(__METHOD__)));
313
        }
314
315
        return new Asset($this->builder, $path, $options);
316
    }
317
318
    /**
319
     * Compiles a SCSS asset.
320
     *
321
     * @param string|Asset $asset
322
     *
323
     * @return Asset
324
     */
325
    public function toCss($asset): Asset
326
    {
327
        if (!$asset instanceof Asset) {
328
            $asset = new Asset($this->builder, $asset);
329
        }
330
331
        return $asset->compile();
332
    }
333
334
    /**
335
     * Minifying an asset (CSS or JS).
336
     *
337
     * @param string|Asset $asset
338
     *
339
     * @return Asset
340
     */
341
    public function minify($asset): Asset
342
    {
343
        if (!$asset instanceof Asset) {
344
            $asset = new Asset($this->builder, $asset);
345
        }
346
347
        return $asset->minify();
348
    }
349
350
    /**
351
     * Fingerprinting an asset.
352
     *
353
     * @param string|Asset $asset
354
     *
355
     * @return Asset
356
     */
357
    public function fingerprint($asset): Asset
358
    {
359
        if (!$asset instanceof Asset) {
360
            $asset = new Asset($this->builder, $asset);
361
        }
362
363
        return $asset->fingerprint();
364
    }
365
366
    /**
367
     * Resizes an image.
368
     *
369
     * @param string|Asset $asset
370
     *
371
     * @return Asset
372
     */
373
    public function resize($asset, int $size): Asset
374
    {
375
        if (!$asset instanceof Asset) {
376
            $asset = new Asset($this->builder, $asset);
377
        }
378
379
        return $asset->resize($size);
380
    }
381
382
    /**
383
     * Crops an image Asset to the given width and height, keeping the aspect ratio.
384
     *
385
     * @param string|Asset $asset
386
     *
387
     * @return Asset
388
     */
389
    public function cover($asset, int $width, int $height): Asset
390
    {
391
        if (!$asset instanceof Asset) {
392
            $asset = new Asset($this->builder, $asset);
393
        }
394
395
        return $asset->cover($width, $height);
396
    }
397
398
    /**
399
     * Creates a maskable icon from an image asset.
400
     * The maskable icon is used for Progressive Web Apps (PWAs).
401
     *
402
     * @param string|Asset $asset
403
     *
404
     * @return Asset
405
     */
406
    public function maskable($asset, ?int $padding = null): Asset
407
    {
408
        if (!$asset instanceof Asset) {
409
            $asset = new Asset($this->builder, $asset);
410
        }
411
412
        return $asset->maskable($padding);
413
    }
414
415
    /**
416
     * Returns the data URL of an image.
417
     *
418
     * @param string|Asset $asset
419
     *
420
     * @return string
421
     */
422
    public function dataurl($asset): string
423
    {
424
        if (!$asset instanceof Asset) {
425
            $asset = new Asset($this->builder, $asset);
426
        }
427
428
        return $asset->dataurl();
429
    }
430
431
    /**
432
     * Hashing an asset with algo (sha384 by default).
433
     *
434
     * @param string|Asset $asset
435
     * @param string       $algo
436
     *
437
     * @return string
438
     */
439
    public function integrity($asset, string $algo = 'sha384'): string
440
    {
441
        if (!$asset instanceof Asset) {
442
            $asset = new Asset($this->builder, $asset);
443
        }
444
445
        return $asset->getIntegrity($algo);
446
    }
447
448
    /**
449
     * Minifying a CSS string.
450
     */
451
    public function minifyCss(?string $value): string
452
    {
453
        $value = $value ?? '';
454
455
        if ($this->builder->isDebug()) {
456
            return $value;
457
        }
458
459
        $cache = new Cache($this->builder, 'assets');
460
        $cacheKey = $cache->createKeyFromValue(null, $value);
461
        if (!$cache->has($cacheKey)) {
462
            $minifier = new Minify\CSS($value);
463
            $value = $minifier->minify();
464
            $cache->set($cacheKey, $value, $this->config->get('cache.assets.ttl'));
465
        }
466
467
        return $cache->get($cacheKey, $value);
468
    }
469
470
    /**
471
     * Minifying a JavaScript string.
472
     */
473
    public function minifyJs(?string $value): string
474
    {
475
        $value = $value ?? '';
476
477
        if ($this->builder->isDebug()) {
478
            return $value;
479
        }
480
481
        $cache = new Cache($this->builder, 'assets');
482
        $cacheKey = $cache->createKeyFromValue(null, $value);
483
        if (!$cache->has($cacheKey)) {
484
            $minifier = new Minify\JS($value);
485
            $value = $minifier->minify();
486
            $cache->set($cacheKey, $value, $this->config->get('cache.assets.ttl'));
487
        }
488
489
        return $cache->get($cacheKey, $value);
490
    }
491
492
    /**
493
     * Compiles a SCSS string.
494
     *
495
     * @throws RuntimeException
496
     */
497
    public function scssToCss(?string $value): string
498
    {
499
        $value = $value ?? '';
500
501
        $cache = new Cache($this->builder, 'assets');
502
        $cacheKey = $cache->createKeyFromValue(null, $value);
503
        if (!$cache->has($cacheKey)) {
504
            $scssPhp = new Compiler();
505
            $outputStyles = ['expanded', 'compressed'];
506
            $outputStyle = strtolower((string) $this->config->get('assets.compile.style'));
507
            if (!\in_array($outputStyle, $outputStyles)) {
508
                throw new ConfigException(\sprintf('"%s" value must be "%s".', 'assets.compile.style', implode('" or "', $outputStyles)));
509
            }
510
            $scssPhp->setOutputStyle($outputStyle == 'compressed' ? OutputStyle::COMPRESSED : OutputStyle::EXPANDED);
511
            $variables = $this->config->get('assets.compile.variables');
512
            if (!empty($variables)) {
513
                $variables = array_map('ScssPhp\ScssPhp\ValueConverter::parseValue', $variables);
514
                $scssPhp->replaceVariables($variables);
515
            }
516
            $value = $scssPhp->compileString($value)->getCss();
517
            $cache->set($cacheKey, $value, $this->config->get('cache.assets.ttl'));
518
        }
519
520
        return $cache->get($cacheKey, $value);
521
    }
522
523
    /**
524
     * Creates the HTML element of an asset.
525
     *
526
     * @param array                                                                $context    Twig context
527
     * @param Asset|array<int,array{asset:Asset,attributes:?array<string,string>}> $assets     Asset or array of assets + attributes
528
     * @param array                                                                $attributes HTML attributes to add to the element
529
     * @param array                                                                $options    Options:
530
     * [
531
     *     'preload'    => false,
532
     *     'responsive' => false,
533
     *     'formats'    => [],
534
     * ];
535
     *
536
     * @return string HTML element
537
     *
538
     * @throws RuntimeException
539
     */
540
    public function html(array $context, Asset|array $assets, array $attributes = [], array $options = []): string
541
    {
542
        $html = array();
543
        if (!\is_array($assets)) {
0 ignored issues
show
introduced by
The condition is_array($assets) is always true.
Loading history...
544
            $assets = [['asset' => $assets, 'attributes' => null]];
545
        }
546
        foreach ($assets as $assetData) {
547
            $asset = $assetData['asset'];
548
            if (!$asset instanceof Asset) {
549
                $asset = new Asset($this->builder, $asset);
550
            }
551
            // be sure Asset file is saved
552
            $asset->save();
553
            // merge attributes
554
            $attr = $attributes;
555
            if ($assetData['attributes'] !== null) {
556
                $attr = $attributes + $assetData['attributes'];
557
            }
558
            // process by extension
559
            $attributes['as'] = $asset['type'];
560
            switch ($asset['ext']) {
561
                case 'css':
562
                    $html[] = $this->htmlCss($context, $asset, $attr, $options);
563
                    $attributes['as'] = 'style';
564
                    unset($attributes['defer']);
565
                    break;
566
                case 'js':
567
                    $html[] = $this->htmlJs($context, $asset, $attr, $options);
568
                    $attributes['as'] = $asset['script'];
569
                    break;
570
            }
571
            // process by MIME type
572
            switch ($asset['type']) {
573
                case 'image':
574
                    $html[] = $this->htmlImage($context, $asset, $attr, $options);
575
                    break;
576
                case 'video':
577
                    $html[] = $this->htmlVideo($context, $asset, $attr, $options);
578
                    break;
579
            }
580
            // preload
581
            if ($options['preload'] ?? false) {
582
                $attributes['type'] = $asset['subtype'];
583
                if (empty($attributes['crossorigin'])) {
584
                    $attributes['crossorigin'] = 'anonymous';
585
                }
586
                array_unshift($html, \sprintf('<link rel="preload" href="%s"%s>', $this->url($context, $asset, $options), self::htmlAttributes($attributes)));
587
            }
588
            unset($attr);
589
        }
590
        if (empty($html)) {
591
            throw new RuntimeException(\sprintf('%s failed to generate HTML element(s) for file(s) provided.', '"html" function'));
592
        }
593
594
        return implode("\n    ", $html);
595
    }
596
597
    /**
598
     * Builds the HTML link element of a CSS Asset.
599
     */
600
    public function htmlCss(array $context, Asset $asset, array $attributes = [], array $options = []): string
601
    {
602
        // simulate "defer" by using "preload" and "onload"
603
        if (isset($attributes['defer'])) {
604
            unset($attributes['defer']);
605
            return \sprintf(
606
                '<link rel="preload" href="%s" as="style" onload="this.onload=null;this.rel=\'stylesheet\'"%s><noscript><link rel="stylesheet" href="%1$s"%2$s></noscript>',
607
                $this->url($context, $asset, $options),
608
                self::htmlAttributes($attributes)
609
            );
610
        }
611
612
        return \sprintf('<link rel="stylesheet" href="%s"%s>', $this->url($context, $asset, $options), self::htmlAttributes($attributes));
613
    }
614
615
    /**
616
     * Builds the HTML script element of a JS Asset.
617
     */
618
    public function htmlJs(array $context, Asset $asset, array $attributes = [], array $options = []): string
619
    {
620
        return \sprintf('<script src="%s"%s></script>', $this->url($context, $asset, $options), self::htmlAttributes($attributes));
621
    }
622
623
    /**
624
     * Builds the HTML img element of an image Asset.
625
     */
626
    public function htmlImage(array $context, Asset $asset, array $attributes = [], array $options = []): string
627
    {
628
        $htmlAttributes = self::htmlAttributes($attributes);
629
        if (!isset($attributes['alt'])) {
630
            $htmlAttributes .= ' alt=""';
631
        }
632
        $responsive = $options['responsive'] ?? $this->config->get('layouts.images.responsive');
633
634
        // build responsive attributes
635
        try {
636
            if ($responsive === true || $responsive == 'width') {
637
                $srcset = Image::buildHtmlSrcsetW($asset, $this->config->getAssetsImagesWidths());
638
                $htmlAttributes .= \sprintf(' srcset="%s" sizes="%s"', $srcset, Image::getHtmlSizes($attributes['class'] ?? '', $this->config->getAssetsImagesSizes()));
639
                // prevent oversized images
640
                if ($asset['width'] > max($this->config->getAssetsImagesWidths())) {
641
                    $asset = $asset->resize(max($this->config->getAssetsImagesWidths()));
642
                }
643
            }
644
            if ($responsive == 'density') {
645
                $width1x = isset($attributes['width']) && $attributes['width'] > 0 ? (int) $attributes['width'] : $asset['width'];
646
                $srcset = Image::buildHtmlSrcsetX($asset, $width1x, $this->config->getAssetsImagesDensities());
647
                $htmlAttributes .= \sprintf(' srcset="%s"', $srcset);
648
            }
649
        } catch (\Exception $e) {
650
            $this->builder->getLogger()->warning($e->getMessage());
651
        }
652
653
        // create alternative formats (`<source>`)
654
        try {
655
            $formats = $options['formats'] ?? (array) $this->config->get('layouts.images.formats');
656
            if (\count($formats) > 0) {
657
                $source = '';
658
                foreach ($formats as $format) {
659
                    try {
660
                        $assetConverted = $asset->convert($format);
661
                        // responsive
662
                        if ($responsive === true || $responsive == 'width') {
663
                            $srcset = Image::buildHtmlSrcsetW($assetConverted, $this->config->getAssetsImagesWidths());
664
                            $source .= \sprintf("\n  <source type=\"image/$format\" srcset=\"%s\" sizes=\"%s\">", $srcset, Image::getHtmlSizes($attributes['class'] ?? '', $this->config->getAssetsImagesSizes()));
665
                            continue;
666
                        }
667
                        if ($responsive == 'density') {
668
                            $width1x = isset($attributes['width']) && $attributes['width'] > 0 ? (int) $attributes['width'] : $asset['width'];
669
                            $srcset = Image::buildHtmlSrcsetX($assetConverted, $width1x, $this->config->getAssetsImagesDensities());
670
                            $source .= \sprintf("\n  <source type=\"image/$format\" srcset=\"%s\">", $srcset);
671
                            continue;
672
                        }
673
                        $source .= \sprintf("\n  <source type=\"image/$format\" srcset=\"%s\">", $assetConverted);
674
                    } catch (\Exception $e) {
675
                        $this->builder->getLogger()->warning($e->getMessage());
676
                        continue;
677
                    }
678
                }
679
            }
680
        } catch (\Exception $e) {
681
            $this->builder->getLogger()->warning($e->getMessage());
682
        }
683
684
        // create `<img>` element
685
        if (isset($attributes['width']) && $attributes['width'] > 0) {
686
            $asset = $asset->resize((int) $attributes['width']);
687
        }
688
        if (!isset($attributes['width'])) {
689
            $htmlAttributes .= \sprintf(' width="%s"', $asset['width'] ?: '');
690
        }
691
        $htmlAttributes .= \sprintf(' height="%s"', $asset['height'] ?: '');
692
        $img = \sprintf('<img src="%s"%s>', $this->url($context, $asset, $options), $htmlAttributes);
693
694
        // put `<source>` elements in `<picture>` if exists
695
        if (!empty($source)) {
696
            return \sprintf("<picture>%s\n  %s\n</picture>", $source, $img);
697
        }
698
699
        return $img;
700
    }
701
702
    /**
703
     * Builds the HTML video element of a video Asset.
704
     */
705
    public function htmlVideo(array $context, Asset $asset, array $attributes = [], array $options = []): string
706
    {
707
        if (empty($attributes)) {
708
            $attributes['controls'] = '';
709
        }
710
711
        return \sprintf('<video%s><source src="%s" type="%s"></video>', self::htmlAttributes($attributes), $this->url($context, $asset, $options), $asset['subtype']);
712
    }
713
714
    /**
715
     * Builds the HTML img `srcset` (responsive) attribute of an image Asset, based on configured widths.
716
     *
717
     * @throws RuntimeException
718
     */
719
    public function imageSrcset(Asset $asset): string
720
    {
721
        return Image::buildHtmlSrcsetW($asset, $this->config->getAssetsImagesWidths(), true);
722
    }
723
724
    /**
725
     * Returns the HTML img `sizes` attribute based on a CSS class name.
726
     */
727
    public function imageSizes(string $class): string
728
    {
729
        return Image::getHtmlSizes($class, $this->config->getAssetsImagesSizes());
730
    }
731
732
    /**
733
     * Converts an image Asset to WebP format.
734
     */
735
    public function webp(Asset $asset, ?int $quality = null): Asset
736
    {
737
        return $this->convert($asset, 'webp', $quality);
738
    }
739
740
    /**
741
     * Converts an image Asset to AVIF format.
742
     */
743
    public function avif(Asset $asset, ?int $quality = null): Asset
744
    {
745
        return $this->convert($asset, 'avif', $quality);
746
    }
747
748
    /**
749
     * Converts an image Asset to the given format.
750
     *
751
     * @throws RuntimeException
752
     */
753
    private function convert(Asset $asset, string $format, ?int $quality = null): Asset
754
    {
755
        if ($asset['subtype'] == "image/$format") {
756
            return $asset;
757
        }
758
        if (Image::isAnimatedGif($asset)) {
759
            throw new RuntimeException(\sprintf('Unable to convert the animated GIF "%s" to %s.', $asset['path'], $format));
760
        }
761
762
        try {
763
            return $asset->$format($quality);
764
        } catch (\Exception $e) {
765
            throw new RuntimeException(\sprintf('Unable to convert "%s" to %s (%s).', $asset['path'], $format, $e->getMessage()));
766
        }
767
    }
768
769
    /**
770
     * Returns the content of an asset.
771
     */
772
    public function inline(Asset $asset): string
773
    {
774
        return $asset['content'];
775
    }
776
777
    /**
778
     * Reads $length first characters of a string and adds a suffix.
779
     */
780
    public function excerpt(?string $string, int $length = 450, string $suffix = ' …'): string
781
    {
782
        $string = $string ?? '';
783
784
        $string = str_replace('</p>', '<br><br>', $string);
785
        $string = trim(strip_tags($string, '<br>'));
786
        if (mb_strlen($string) > $length) {
787
            $string = mb_substr($string, 0, $length);
788
            $string .= $suffix;
789
        }
790
791
        return $string;
792
    }
793
794
    /**
795
     * Reads characters before or after '<!-- separator -->'.
796
     * Options:
797
     *  - separator: string to use as separator (`excerpt|break` by default)
798
     *  - capture: part to capture, `before` or `after` the separator (`before` by default).
799
     */
800
    public function excerptHtml(?string $string, array $options = []): string
801
    {
802
        $string = $string ?? '';
803
804
        $separator = (string) $this->config->get('pages.body.excerpt.separator');
805
        $capture = (string) $this->config->get('pages.body.excerpt.capture');
806
        extract($options, EXTR_IF_EXISTS);
807
808
        // https://regex101.com/r/n9TWHF/1
809
        $pattern = '(.*)<!--[[:blank:]]?(' . $separator . ')[[:blank:]]?-->(.*)';
810
        preg_match('/' . $pattern . '/is', $string, $matches);
811
812
        if (empty($matches)) {
813
            return $string;
814
        }
815
        $result = trim($matches[1]);
816
        if ($capture == 'after') {
817
            $result = trim($matches[3]);
818
        }
819
        // removes footnotes and returns result
820
        return preg_replace('/<sup[^>]*>[^u]*<\/sup>/', '', $result);
821
    }
822
823
    /**
824
     * Converts a Markdown string to HTML.
825
     *
826
     * @throws RuntimeException
827
     */
828
    public function markdownToHtml(?string $markdown): ?string
829
    {
830
        $markdown = $markdown ?? '';
831
832
        try {
833
            $parsedown = new Parsedown($this->builder);
834
            $html = $parsedown->text($markdown);
835
        } catch (\Exception $e) {
836
            throw new RuntimeException(
837
                '"markdown_to_html" filter can not convert supplied Markdown.',
838
                previous: $e
839
            );
840
        }
841
842
        return $html;
843
    }
844
845
    /**
846
     * Extract table of content of a Markdown string,
847
     * in the given format ("html" or "json", "html" by default).
848
     *
849
     * @throws RuntimeException
850
     */
851
    public function markdownToToc(?string $markdown, $format = 'html', ?array $selectors = null, string $url = ''): ?string
852
    {
853
        $markdown = $markdown ?? '';
854
        $selectors = $selectors ?? (array) $this->config->get('pages.body.toc');
855
856
        try {
857
            $parsedown = new Parsedown($this->builder, ['selectors' => $selectors, 'url' => $url]);
858
            $parsedown->body($markdown);
859
            $return = $parsedown->contentsList($format);
860
        } catch (\Exception) {
861
            throw new RuntimeException('"toc" filter can not convert supplied Markdown.');
862
        }
863
864
        return $return;
865
    }
866
867
    /**
868
     * Converts a JSON string to an array.
869
     *
870
     * @throws RuntimeException
871
     */
872
    public function jsonDecode(?string $json): ?array
873
    {
874
        $json = $json ?? '';
875
876
        try {
877
            $array = json_decode($json, true);
878
            if ($array === null && json_last_error() !== JSON_ERROR_NONE) {
879
                throw new \Exception('JSON error.');
880
            }
881
        } catch (\Exception) {
882
            throw new RuntimeException('"json_decode" filter can not parse supplied JSON.');
883
        }
884
885
        return $array;
886
    }
887
888
    /**
889
     * Converts a YAML string to an array.
890
     *
891
     * @throws RuntimeException
892
     */
893
    public function yamlParse(?string $yaml): ?array
894
    {
895
        $yaml = $yaml ?? '';
896
897
        try {
898
            $array = Yaml::parse($yaml, Yaml::PARSE_DATETIME);
899
            if (!\is_array($array)) {
900
                throw new ParseException('YAML error.');
901
            }
902
        } catch (ParseException $e) {
903
            throw new RuntimeException(\sprintf('"yaml_parse" filter can not parse supplied YAML: %s', $e->getMessage()));
904
        }
905
906
        return $array;
907
    }
908
909
    /**
910
     * Split a string into an array using a regular expression.
911
     *
912
     * @throws RuntimeException
913
     */
914
    public function pregSplit(?string $value, string $pattern, int $limit = 0): ?array
915
    {
916
        $value = $value ?? '';
917
918
        try {
919
            $array = preg_split($pattern, $value, $limit);
920
            if ($array === false) {
921
                throw new RuntimeException('PREG split error.');
922
            }
923
        } catch (\Exception) {
924
            throw new RuntimeException('"preg_split" filter can not split supplied string.');
925
        }
926
927
        return $array;
928
    }
929
930
    /**
931
     * Perform a regular expression match and return the group for all matches.
932
     *
933
     * @throws RuntimeException
934
     */
935
    public function pregMatchAll(?string $value, string $pattern, int $group = 0): ?array
936
    {
937
        $value = $value ?? '';
938
939
        try {
940
            $array = preg_match_all($pattern, $value, $matches, PREG_PATTERN_ORDER);
941
            if ($array === false) {
942
                throw new RuntimeException('PREG match all error.');
943
            }
944
        } catch (\Exception) {
945
            throw new RuntimeException('"preg_match_all" filter can not match in supplied string.');
946
        }
947
948
        return $matches[$group];
949
    }
950
951
    /**
952
     * Calculates estimated time to read a text.
953
     */
954
    public function readtime(?string $text): string
955
    {
956
        $text = $text ?? '';
957
958
        $words = str_word_count(strip_tags($text));
959
        $min = floor($words / 200);
960
        if ($min === 0) {
961
            return '1';
962
        }
963
964
        return (string) $min;
965
    }
966
967
    /**
968
     * Gets the value of an environment variable.
969
     */
970
    public function getEnv(?string $var): ?string
971
    {
972
        $var = $var ?? '';
973
974
        return getenv($var) ?: null;
975
    }
976
977
    /**
978
     * Dump variable (or Twig context).
979
     */
980
    public function varDump(\Twig\Environment $env, array $context, $var = null, ?array $options = null): void
981
    {
982
        if (!$env->isDebug()) {
983
            return;
984
        }
985
986
        if ($var === null) {
987
            $var = array();
988
            foreach ($context as $key => $value) {
989
                if (!$value instanceof \Twig\Template && !$value instanceof \Twig\TemplateWrapper) {
990
                    $var[$key] = $value;
991
                }
992
            }
993
        }
994
995
        $cloner = new VarCloner();
996
        $cloner->setMinDepth(3);
997
        $dumper = new HtmlDumper();
998
        $dumper->setTheme($options['theme'] ?? 'light');
999
1000
        $data = $cloner->cloneVar($var)->withMaxDepth(3);
1001
        $dumper->dump($data, null, ['maxDepth' => 3]);
1002
    }
1003
1004
    /**
1005
     * Tests if a variable is an Asset.
1006
     */
1007
    public function isAsset($variable): bool
1008
    {
1009
        return $variable instanceof Asset;
1010
    }
1011
1012
    /**
1013
     * Tests if an image Asset is large enough to be used as a cover image.
1014
     * A large image is defined as having a width >= 600px and height >= 315px.
1015
     */
1016
    public function isImageLarge(Asset $asset): bool
1017
    {
1018
        return $asset['type'] == 'image' && $asset['width'] > $asset['height'] && $asset['width'] >= 600 && $asset['height'] >= 315;
1019
    }
1020
1021
    /**
1022
     * Tests if an image Asset is square.
1023
     * A square image is defined as having the same width and height.
1024
     */
1025
    public function isImageSquare(Asset $asset): bool
1026
    {
1027
        return $asset['type'] == 'image' && $asset['width'] == $asset['height'];
1028
    }
1029
1030
    /**
1031
     * Returns the dominant hex color of an image asset.
1032
     *
1033
     * @param string|Asset $asset
1034
     *
1035
     * @return string
1036
     */
1037
    public function dominantColor($asset): string
1038
    {
1039
        if (!$asset instanceof Asset) {
1040
            $asset = new Asset($this->builder, $asset);
1041
        }
1042
1043
        return Image::getDominantColor($asset);
1044
    }
1045
1046
    /**
1047
     * Returns a Low Quality Image Placeholder (LQIP) as data URL.
1048
     *
1049
     * @param string|Asset $asset
1050
     *
1051
     * @return string
1052
     */
1053
    public function lqip($asset): string
1054
    {
1055
        if (!$asset instanceof Asset) {
1056
            $asset = new Asset($this->builder, $asset);
1057
        }
1058
1059
        return Image::getLqip($asset);
1060
    }
1061
1062
    /**
1063
     * Converts an hexadecimal color to RGB.
1064
     *
1065
     * @throws RuntimeException
1066
     */
1067
    public function hexToRgb(?string $variable): array
1068
    {
1069
        $variable = $variable ?? '';
1070
1071
        if (!self::isHex($variable)) {
1072
            throw new RuntimeException(\sprintf('"%s" is not a valid hexadecimal value.', $variable));
1073
        }
1074
        $hex = ltrim($variable, '#');
1075
        if (\strlen($hex) == 3) {
1076
            $hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
1077
        }
1078
        $c = hexdec($hex);
1079
1080
        return [
1081
            'red'   => $c >> 16 & 0xFF,
1082
            'green' => $c >> 8 & 0xFF,
1083
            'blue'  => $c & 0xFF,
1084
        ];
1085
    }
1086
1087
    /**
1088
     * Split a string in multiple lines.
1089
     */
1090
    public function splitLine(?string $variable, int $max = 18): array
1091
    {
1092
        $variable = $variable ?? '';
1093
1094
        return preg_split("/.{0,{$max}}\K(\s+|$)/", $variable, 0, PREG_SPLIT_NO_EMPTY);
1095
    }
1096
1097
    /**
1098
     * Hashing an object, an array or a string (with algo, md5 by default).
1099
     */
1100
    public function hash(object|array|string $data, $algo = 'md5'): string
1101
    {
1102
        switch (\gettype($data)) {
1103
            case 'object':
1104
                return spl_object_hash($data);
1105
            case 'array':
1106
                return hash($algo, serialize($data));
1107
        }
1108
1109
        return hash($algo, $data);
1110
    }
1111
1112
    /**
1113
     * Converts a variable to an iterable (array).
1114
     */
1115
    public function iterable($value): array
1116
    {
1117
        if (\is_array($value)) {
1118
            return $value;
1119
        }
1120
        if (\is_string($value)) {
1121
            return [$value];
1122
        }
1123
        if ($value instanceof \Traversable) {
1124
            return iterator_to_array($value);
1125
        }
1126
        if ($value instanceof \stdClass) {
1127
            return (array) $value;
1128
        }
1129
        if (\is_object($value)) {
1130
            return [$value];
1131
        }
1132
        if (\is_int($value) || \is_float($value)) {
1133
            return [$value];
1134
        }
1135
        return [$value];
1136
    }
1137
1138
    /**
1139
     * Highlights a code snippet.
1140
     */
1141
    public function highlight(string $code, string $language): string
1142
    {
1143
        return (new Highlighter())->highlight($language, $code)->value;
1144
    }
1145
1146
    /**
1147
     * Returns an array with unique values.
1148
     */
1149
    public function unique(array $array): array
1150
    {
1151
        return array_intersect_key($array, array_unique(array_map('strtolower', $array), SORT_STRING));
1152
    }
1153
1154
    /**
1155
     * Is a hexadecimal color is valid?
1156
     */
1157
    private static function isHex(string $hex): bool
1158
    {
1159
        $valid = \is_string($hex);
1160
        $hex = ltrim($hex, '#');
1161
        $length = \strlen($hex);
1162
        $valid = $valid && ($length === 3 || $length === 6);
1163
        $valid = $valid && ctype_xdigit($hex);
1164
1165
        return $valid;
1166
    }
1167
1168
    /**
1169
     * Builds the HTML attributes string from an array.
1170
     */
1171
    private static function htmlAttributes(array $attributes): string
1172
    {
1173
        $htmlAttributes = '';
1174
        foreach ($attributes as $name => $value) {
1175
            $attribute = \sprintf(' %s="%s"', $name, $value);
1176
            if (empty($value)) {
1177
                $attribute = \sprintf(' %s', $name);
1178
            }
1179
            $htmlAttributes .= $attribute;
1180
        }
1181
1182
        return $htmlAttributes;
1183
    }
1184
}
1185