| Total Complexity | 67 |
| Total Lines | 526 |
| Duplicated Lines | 0 % |
| Changes | 9 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Extension often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Extension, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 30 | class Extension extends SlugifyExtension |
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| 31 | { |
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| 32 | /** @var Builder */ |
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| 33 | protected $builder; |
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| 34 | /** @var Config */ |
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| 35 | protected $config; |
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| 36 | /** @var Slugify */ |
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| 37 | private static $slugifier; |
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| 38 | |||
| 39 | /** |
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| 40 | * @param Builder $builder |
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| 41 | */ |
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| 42 | public function __construct(Builder $builder) |
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| 43 | { |
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| 44 | if (!self::$slugifier instanceof Slugify) { |
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| 45 | self::$slugifier = Slugify::create(['regexp' => Page::SLUGIFY_PATTERN]); |
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| 46 | } |
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| 47 | |||
| 48 | parent::__construct(self::$slugifier); |
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| 49 | |||
| 50 | $this->builder = $builder; |
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| 51 | $this->config = $this->builder->getConfig(); |
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| 52 | } |
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| 53 | |||
| 54 | /** |
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| 55 | * {@inheritdoc} |
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| 56 | */ |
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| 57 | public function getName() |
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| 58 | { |
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| 59 | return 'cecil'; |
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| 60 | } |
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| 61 | |||
| 62 | /** |
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| 63 | * {@inheritdoc} |
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| 64 | */ |
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| 65 | public function getFilters() |
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| 66 | { |
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| 67 | return [ |
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| 68 | new \Twig\TwigFilter('filterBySection', [$this, 'filterBySection']), |
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| 69 | new \Twig\TwigFilter('filterBy', [$this, 'filterBy']), |
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| 70 | new \Twig\TwigFilter('sortByTitle', [$this, 'sortByTitle']), |
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| 71 | new \Twig\TwigFilter('sortByWeight', [$this, 'sortByWeight']), |
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| 72 | new \Twig\TwigFilter('sortByDate', [$this, 'sortByDate']), |
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| 73 | new \Twig\TwigFilter('urlize', [$this, 'slugifyFilter']), |
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| 74 | new \Twig\TwigFilter('url', [$this, 'createUrl']), |
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| 75 | new \Twig\TwigFilter('minify', [$this, 'minify']), |
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| 76 | new \Twig\TwigFilter('minifyCSS', [$this, 'minifyCss']), |
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| 77 | new \Twig\TwigFilter('minifyJS', [$this, 'minifyJs']), |
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| 78 | new \Twig\TwigFilter('SCSStoCSS', [$this, 'scssToCss']), |
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| 79 | new \Twig\TwigFilter('excerpt', [$this, 'excerpt']), |
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| 80 | new \Twig\TwigFilter('excerptHtml', [$this, 'excerptHtml']), |
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| 81 | new \Twig\TwigFilter('resize', [$this, 'resize']), |
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| 82 | ]; |
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| 83 | } |
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| 84 | |||
| 85 | /** |
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| 86 | * {@inheritdoc} |
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| 87 | */ |
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| 88 | public function getFunctions() |
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| 89 | { |
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| 90 | return [ |
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| 91 | new \Twig\TwigFunction('url', [$this, 'createUrl']), |
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| 92 | new \Twig\TwigFunction('minify', [$this, 'minify']), |
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| 93 | new \Twig\TwigFunction('readtime', [$this, 'readtime']), |
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| 94 | new \Twig\TwigFunction('toCSS', [$this, 'toCss']), |
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| 95 | new \Twig\TwigFunction('hash', [$this, 'hashFile']), |
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| 96 | new \Twig\TwigFunction('getenv', [$this, 'getEnv']), |
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| 97 | new \Twig\TwigFunction('asset', [$this, 'asset']), |
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| 98 | ]; |
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| 99 | } |
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| 100 | |||
| 101 | /** |
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| 102 | * Filters by Section. |
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| 103 | * |
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| 104 | * Alias of `filterBy('section', $value)`. |
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| 105 | * |
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| 106 | * @param PagesCollection $pages |
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| 107 | * @param string $section |
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| 108 | * |
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| 109 | * @return CollectionInterface |
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| 110 | */ |
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| 111 | public function filterBySection(PagesCollection $pages, string $section): CollectionInterface |
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| 112 | { |
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| 113 | return $this->filterBy($pages, 'section', $section); |
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| 114 | } |
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| 115 | |||
| 116 | /** |
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| 117 | * Filters by variable's name/value. |
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| 118 | * |
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| 119 | * @param PagesCollection $pages |
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| 120 | * @param string $variable |
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| 121 | * @param string $value |
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| 122 | * |
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| 123 | * @return CollectionInterface |
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| 124 | */ |
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| 125 | public function filterBy(PagesCollection $pages, string $variable, string $value): CollectionInterface |
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| 126 | { |
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| 127 | $filteredPages = $pages->filter(function (Page $page) use ($variable, $value) { |
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| 128 | $notVirtual = false; |
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| 129 | if (!$page->isVirtual()) { |
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| 130 | $notVirtual = true; |
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| 131 | } |
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| 132 | // is a dedicated getter exists? |
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| 133 | $method = 'get'.ucfirst($variable); |
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| 134 | if (method_exists($page, $method) && $page->$method() == $value) { |
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| 135 | return $notVirtual && true; |
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| 136 | } |
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| 137 | if ($page->getVariable($variable) == $value) { |
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| 138 | return $notVirtual && true; |
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| 139 | } |
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| 140 | }); |
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| 141 | |||
| 142 | return $filteredPages; |
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| 143 | } |
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| 144 | |||
| 145 | /** |
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| 146 | * Sorts by title. |
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| 147 | * |
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| 148 | * @param \Traversable $collection |
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| 149 | * |
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| 150 | * @return array |
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| 151 | */ |
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| 152 | public function sortByTitle(\Traversable $collection): array |
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| 153 | { |
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| 154 | $collection = iterator_to_array($collection); |
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| 155 | array_multisort(array_keys($collection), SORT_NATURAL | SORT_FLAG_CASE, $collection); |
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| 156 | |||
| 157 | return $collection; |
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| 158 | } |
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| 159 | |||
| 160 | /** |
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| 161 | * Sorts by weight. |
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| 162 | * |
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| 163 | * @param \Traversable $collection |
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| 164 | * |
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| 165 | * @return array |
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| 166 | */ |
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| 167 | public function sortByWeight(\Traversable $collection): array |
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| 168 | { |
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| 169 | $callback = function ($a, $b) { |
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| 170 | if (!isset($a['weight'])) { |
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| 171 | return 1; |
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| 172 | } |
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| 173 | if (!isset($b['weight'])) { |
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| 174 | return -1; |
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| 175 | } |
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| 176 | if ($a['weight'] == $b['weight']) { |
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| 177 | return 0; |
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| 178 | } |
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| 179 | |||
| 180 | return ($a['weight'] < $b['weight']) ? -1 : 1; |
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| 181 | }; |
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| 182 | |||
| 183 | $collection = iterator_to_array($collection); |
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| 184 | usort($collection, $callback); |
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| 185 | |||
| 186 | return $collection; |
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| 187 | } |
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| 188 | |||
| 189 | /** |
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| 190 | * Sorts by date. |
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| 191 | * |
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| 192 | * @param \Traversable $collection |
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| 193 | * |
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| 194 | * @return array |
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| 195 | */ |
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| 196 | public function sortByDate(\Traversable $collection): array |
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| 216 | } |
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| 217 | |||
| 218 | /** |
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| 219 | * Creates an URL. |
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| 220 | * |
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| 221 | * $options[ |
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| 222 | * 'canonical' => null, |
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| 223 | * 'addhash' => true, |
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| 224 | * 'format' => 'json', |
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| 225 | * ]; |
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| 226 | * |
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| 227 | * @param Page|string|null $value |
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| 228 | * @param array|bool|null $options |
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| 229 | * |
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| 230 | * @return string|null |
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| 231 | */ |
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| 232 | public function createUrl($value = null, $options = null): ?string |
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| 233 | { |
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| 234 | $baseurl = (string) $this->config->get('baseurl'); |
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| 235 | $hash = md5((string) $this->config->get('time')); |
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| 236 | $base = ''; |
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| 237 | // handles options |
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| 238 | $canonical = null; |
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| 239 | $addhash = false; |
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| 240 | $format = null; |
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| 241 | extract(is_array($options) ? $options : []); |
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| 242 | |||
| 243 | // set baseurl |
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| 244 | if ((bool) $this->config->get('canonicalurl') || $canonical === true) { |
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| 245 | $base = rtrim($baseurl, '/'); |
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| 246 | } |
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| 247 | if ($canonical === false) { |
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| 248 | $base = ''; |
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| 249 | } |
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| 250 | |||
| 251 | // value is a Page item |
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| 252 | if ($value instanceof Page) { |
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| 253 | if (!$format) { |
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| 254 | $format = $value->getVariable('output'); |
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| 255 | if (is_array($value->getVariable('output'))) { |
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| 256 | $format = $value->getVariable('output')[0]; |
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| 257 | } |
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| 258 | if (!$format) { |
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| 259 | $format = 'html'; |
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| 260 | } |
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| 261 | } |
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| 262 | $url = $value->getUrl($format, $this->config); |
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| 263 | $url = $base.'/'.ltrim($url, '/'); |
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| 264 | |||
| 265 | return $url; |
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| 266 | } |
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| 267 | |||
| 268 | // value is an external URL |
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| 269 | if ($value !== null) { |
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| 270 | if (Util::isExternalUrl($value)) { |
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| 271 | $url = $value; |
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| 272 | |||
| 273 | return $url; |
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| 274 | } |
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| 275 | } |
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| 276 | |||
| 277 | // value is a string |
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| 278 | if (!is_null($value)) { |
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| 279 | // value is an external URL |
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| 280 | if (Util::isExternalUrl($value)) { |
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| 281 | $url = $value; |
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| 282 | |||
| 283 | return $url; |
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| 284 | } |
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| 285 | $value = Util::joinPath($value); |
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| 286 | } |
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| 287 | |||
| 288 | // value is a ressource URL (ie: 'path/style.css') |
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| 289 | if (false !== strpos($value, '.')) { |
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| 290 | $url = $value; |
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| 291 | if ($addhash) { |
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| 292 | $url .= '?'.$hash; |
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| 293 | } |
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| 294 | $url = $base.'/'.ltrim($url, '/'); |
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| 295 | |||
| 296 | return $url; |
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| 297 | } |
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| 298 | |||
| 299 | // others cases |
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| 300 | $url = $base.'/'; |
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| 301 | if (!empty($value) && $value != '/') { |
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| 302 | $url = $base.'/'.$value; |
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| 303 | |||
| 304 | // value is a page ID (ie: 'path/my-page') |
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| 305 | try { |
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| 306 | $pageId = $this->slugifyFilter($value); |
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| 307 | $page = $this->builder->getPages()->get($pageId); |
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| 308 | $url = $this->createUrl($page, $options); |
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| 309 | } catch (\DomainException $e) { |
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| 310 | // nothing to do |
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| 311 | } |
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| 312 | } |
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| 313 | |||
| 314 | return $url; |
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| 315 | } |
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| 316 | |||
| 317 | /** |
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| 318 | * Minifying a CSS or a JS file. |
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| 319 | * |
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| 320 | * ie: minify('css/style.css') |
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| 321 | * |
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| 322 | * @param string $path |
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| 323 | * |
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| 324 | * @throws Exception |
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| 325 | * |
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| 326 | * @return string |
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| 327 | */ |
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| 328 | public function minify(string $path): string |
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| 329 | { |
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| 330 | $filePath = Util::joinFile($this->config->getOutputPath(), $path); |
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| 331 | $fileInfo = new \SplFileInfo($filePath); |
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| 332 | $fileExtension = $fileInfo->getExtension(); |
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| 333 | // ie: minify('css/style.min.css') |
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| 334 | $pathMinified = \sprintf('%s.min.%s', substr($path, 0, -strlen(".$fileExtension")), $fileExtension); |
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| 335 | $filePathMinified = Util::joinFile($this->config->getOutputPath(), $pathMinified); |
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| 336 | if (is_file($filePathMinified)) { |
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| 337 | return $pathMinified; |
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| 338 | } |
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| 339 | if (is_file($filePath)) { |
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| 340 | switch ($fileExtension) { |
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| 341 | case 'css': |
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| 342 | $minifier = new Minify\CSS($filePath); |
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| 343 | break; |
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| 344 | case 'js': |
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| 345 | $minifier = new Minify\JS($filePath); |
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| 346 | break; |
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| 347 | default: |
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| 348 | throw new Exception(sprintf('%s() error: not able to process "%s"', __FUNCTION__, $path)); |
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| 349 | } |
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| 350 | Util::getFS()->mkdir(dirname($filePathMinified)); |
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| 351 | $minifier->minify($filePathMinified); |
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| 352 | |||
| 353 | return $pathMinified; |
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| 354 | } |
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| 355 | |||
| 356 | throw new Exception(sprintf('%s() error: "%s" doesn\'t exist', __FUNCTION__, $path)); |
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| 357 | } |
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| 358 | |||
| 359 | /** |
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| 360 | * Minifying CSS. |
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| 361 | * |
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| 362 | * @param string $value |
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| 363 | * |
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| 364 | * @return string |
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| 365 | */ |
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| 366 | public function minifyCss(string $value): string |
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| 367 | { |
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| 368 | $minifier = new Minify\CSS($value); |
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| 369 | |||
| 370 | return $minifier->minify(); |
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| 371 | } |
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| 372 | |||
| 373 | /** |
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| 374 | * Minifying JS. |
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| 375 | * |
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| 376 | * @param string $value |
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| 377 | * |
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| 378 | * @return string |
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| 379 | */ |
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| 380 | public function minifyJs(string $value): string |
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| 385 | } |
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| 386 | |||
| 387 | /** |
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| 388 | * Compiles a SCSS file to CSS. |
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| 389 | * |
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| 390 | * @param string $path |
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| 391 | * |
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| 392 | * @throws Exception |
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| 393 | * |
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| 394 | * @return string |
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| 395 | */ |
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| 396 | public function toCss(string $path): string |
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| 426 | } |
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| 427 | |||
| 428 | /** |
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| 429 | * Compiles SCSS string to CSS. |
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| 430 | * |
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| 431 | * @param string $value |
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| 432 | * |
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| 433 | * @return string |
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| 434 | */ |
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| 435 | public function scssToCss(string $value): string |
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| 436 | { |
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| 437 | $scss = new Compiler(); |
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| 438 | |||
| 439 | return $scss->compile($value); |
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| 440 | } |
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| 441 | |||
| 442 | /** |
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| 443 | * Reads $length first characters of a string and adds a suffix. |
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| 444 | * |
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| 445 | * @param string|null $string |
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| 446 | * @param int $length |
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| 447 | * @param string $suffix |
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| 448 | * |
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| 449 | * @return string|null |
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| 450 | */ |
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| 451 | public function excerpt(string $string = null, int $length = 450, string $suffix = ' …'): ?string |
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| 452 | { |
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| 453 | $string = str_replace('</p>', '<br /><br />', $string); |
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| 454 | $string = trim(strip_tags($string, '<br>'), '<br />'); |
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| 455 | if (mb_strlen($string) > $length) { |
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| 456 | $string = mb_substr($string, 0, $length); |
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| 457 | $string .= $suffix; |
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| 458 | } |
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| 459 | |||
| 460 | return $string; |
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| 461 | } |
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| 462 | |||
| 463 | /** |
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| 464 | * Reads characters before '<!-- excerpt|break -->'. |
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| 465 | * |
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| 466 | * @param string|null $string |
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| 467 | * |
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| 468 | * @return string|null |
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| 469 | */ |
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| 470 | public function excerptHtml(string $string = null): ?string |
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| 471 | { |
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| 472 | // https://regex101.com/r/Xl7d5I/3 |
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| 473 | $pattern = '(.*)(<!--[[:blank:]]?(excerpt|break)[[:blank:]]?-->)(.*)'; |
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| 474 | preg_match('/'.$pattern.'/is', $string, $matches); |
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| 475 | if (empty($matches)) { |
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| 476 | return $string; |
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| 477 | } |
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| 478 | |||
| 479 | return trim($matches[1]); |
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| 480 | } |
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| 481 | |||
| 482 | /** |
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| 483 | * Calculates estimated time to read a text. |
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| 484 | * |
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| 485 | * @param string|null $text |
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| 486 | * |
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| 487 | * @return string |
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| 488 | */ |
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| 489 | public function readtime(string $text = null): string |
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| 490 | { |
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| 491 | $words = str_word_count(strip_tags($text)); |
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| 492 | $min = floor($words / 200); |
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| 493 | if ($min === 0) { |
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| 494 | return '1'; |
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| 495 | } |
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| 496 | |||
| 497 | return (string) $min; |
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| 498 | } |
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| 499 | |||
| 500 | /** |
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| 501 | * Hashing a file with sha384. |
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| 502 | * |
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| 503 | * Useful for SRI (Subresource Integrity). |
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| 504 | * |
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| 505 | * @see https://developer.mozilla.org/fr/docs/Web/Security/Subresource_Integrity |
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| 506 | * |
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| 507 | * @param string $path |
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| 508 | * |
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| 509 | * @return string|null |
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| 510 | */ |
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| 511 | public function hashFile(string $path): ?string |
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| 512 | { |
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| 513 | if (is_file($filePath = Util::joinFile($this->config->getOutputPath(), $path))) { |
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| 514 | $path = $filePath; |
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| 515 | } |
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| 516 | |||
| 517 | return sprintf('sha384-%s', base64_encode(hash_file('sha384', $path, true))); |
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| 518 | } |
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| 519 | |||
| 520 | /** |
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| 521 | * Gets the value of an environment variable. |
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| 522 | * |
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| 523 | * @param string $var |
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| 524 | * |
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| 525 | * @return string|null |
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| 526 | */ |
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| 527 | public function getEnv(string $var): ?string |
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| 530 | } |
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| 531 | |||
| 532 | /** |
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| 533 | * Resizes an image. |
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| 534 | * |
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| 535 | * @param string $path Image path (relative from static/ dir or external). |
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| 536 | * @param int $size Image new size (width). |
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| 537 | * |
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| 538 | * @return string |
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| 539 | */ |
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| 540 | public function resize(string $path, int $size): string |
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| 543 | } |
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| 544 | |||
| 545 | /** |
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| 546 | * Manages assets (css, js and images). |
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| 547 | * |
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| 548 | * @param string $path File path (relative from static/ dir). |
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| 549 | * @param array|null $options |
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| 550 | * |
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| 551 | * @return Asset |
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| 552 | */ |
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| 553 | public function asset(string $path, array $options = null): Asset |
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| 556 | } |
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| 557 | } |
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| 558 |