| Total Complexity | 44 |
| Total Lines | 347 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 1 |
Complex classes like Embed 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 Embed, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 7 | class Embed |
||
| 8 | { |
||
| 9 | const TYPE_OEMBED = 0; |
||
| 10 | |||
| 11 | const TYPE_REGEX = 1; |
||
| 12 | |||
| 13 | /** |
||
| 14 | * Type of an Embed object source data - OEmbed or Regex-based. |
||
| 15 | */ |
||
| 16 | protected int $type; |
||
| 17 | |||
| 18 | /** |
||
| 19 | * Array of global options applied to embed objects. |
||
| 20 | */ |
||
| 21 | protected array $options; |
||
| 22 | |||
| 23 | /** |
||
| 24 | * Original media URL. |
||
| 25 | */ |
||
| 26 | protected string $url; |
||
| 27 | |||
| 28 | /** |
||
| 29 | * Embed data extracted via OEmbed or Regex extractors. |
||
| 30 | */ |
||
| 31 | protected array $data; |
||
| 32 | |||
| 33 | /** |
||
| 34 | * Class containing Embed HTML code. |
||
| 35 | */ |
||
| 36 | protected HtmlBuilder $html; |
||
| 37 | |||
| 38 | /** |
||
| 39 | * Thumbnail data if available. |
||
| 40 | */ |
||
| 41 | protected ?array $thumbnail; |
||
| 42 | |||
| 43 | /** |
||
| 44 | * Creates Embed instance. |
||
| 45 | */ |
||
| 46 | public function __construct( |
||
| 60 | } |
||
| 61 | |||
| 62 | /** |
||
| 63 | * Initializer for the Embed object filling thumbnail, html and type based |
||
| 64 | * on a given media provider data. |
||
| 65 | */ |
||
| 66 | public function initData(): self |
||
| 67 | { |
||
| 68 | $data = $this->data(); |
||
| 69 | |||
| 70 | if (isset($data['thumbnail_url'])) { |
||
| 71 | $this->thumbnail = [ |
||
| 72 | 'url' => $data['thumbnail_url'], |
||
| 73 | 'width' => $data['thumbnail_width'] ?? null, |
||
| 74 | 'height' => $data['thumbnail_height'] ?? null, |
||
| 75 | ]; |
||
| 76 | } |
||
| 77 | |||
| 78 | if ($this->type == self::TYPE_OEMBED) { |
||
| 79 | $this->html = $this->extractOEmbedHtml($data['html']); |
||
| 80 | } else { |
||
| 81 | $this->html = $this->extractRegexHtml($data['html']); |
||
| 82 | } |
||
| 83 | |||
| 84 | return $this; |
||
| 85 | } |
||
| 86 | |||
| 87 | /** |
||
| 88 | * Returns mbed options. |
||
| 89 | */ |
||
| 90 | public function getOptions(): array |
||
| 91 | { |
||
| 92 | return $this->options; |
||
| 93 | } |
||
| 94 | |||
| 95 | /** |
||
| 96 | * Sets new embed options. See config file 'options' key. |
||
| 97 | */ |
||
| 98 | public function setOptions(array $options): self |
||
| 102 | } |
||
| 103 | |||
| 104 | /** |
||
| 105 | * Returns provider-specific data options. |
||
| 106 | */ |
||
| 107 | public function getProviderOptions(): array |
||
| 108 | { |
||
| 109 | if (isset($this->options['providers'])) { |
||
| 110 | return $this->options['providers'][$this->data['provider_name']]['data'] ?? []; |
||
| 111 | } |
||
| 112 | |||
| 113 | return []; |
||
| 114 | } |
||
| 115 | |||
| 116 | /** |
||
| 117 | * Returns provider-specific HTML options. |
||
| 118 | */ |
||
| 119 | public function getProviderHtmlOptions(): array |
||
| 120 | { |
||
| 121 | if (isset($this->options['providers'])) { |
||
| 122 | return $this->options['providers'][$this->data['provider_name']]['html'] ?? []; |
||
| 123 | } |
||
| 124 | |||
| 125 | return []; |
||
| 126 | } |
||
| 127 | |||
| 128 | /** |
||
| 129 | * Sets AMP mode. |
||
| 130 | */ |
||
| 131 | public function setAmp(bool $amp): self |
||
| 132 | { |
||
| 133 | $this->amp = $amp; |
||
| 134 | return $this; |
||
| 135 | } |
||
| 136 | |||
| 137 | /** |
||
| 138 | * Returns current HtmlBuilder instance. |
||
| 139 | */ |
||
| 140 | public function htmlBuilder(): HtmlBuilder |
||
| 141 | { |
||
| 142 | return $this->html; |
||
| 143 | } |
||
| 144 | |||
| 145 | /** |
||
| 146 | * Returns string with HTML to embed in application. Will return AMP-friendly |
||
| 147 | * HTML if global amp mode is enabled and not overwitten. |
||
| 148 | */ |
||
| 149 | public function html(array $options = null, ?bool $amp = null): string |
||
| 150 | { |
||
| 151 | if (is_null($options)) { |
||
| 152 | $options = $this->options; |
||
| 153 | } else { |
||
| 154 | $options = array_merge($this->options, $options); |
||
| 155 | } |
||
| 156 | |||
| 157 | if (is_null($amp)) { |
||
| 158 | $amp = $this->amp; |
||
| 159 | } |
||
| 160 | |||
| 161 | return $this->html->html($options, $amp); |
||
| 162 | } |
||
| 163 | |||
| 164 | /** |
||
| 165 | * Returns string with AMP-friendly HTML to embed in an application. |
||
| 166 | */ |
||
| 167 | public function ampHtml(array $options = null): string |
||
| 168 | { |
||
| 169 | return $this->html($options, true); |
||
| 170 | } |
||
| 171 | |||
| 172 | /** |
||
| 173 | * Return script source if available in embed html. |
||
| 174 | */ |
||
| 175 | public function script(): ?string |
||
| 176 | { |
||
| 177 | return $this->html->script(); |
||
| 178 | } |
||
| 179 | |||
| 180 | /** |
||
| 181 | * Returns embed provider type. |
||
| 182 | */ |
||
| 183 | public function type(): int |
||
| 184 | { |
||
| 185 | return $this->type; |
||
| 186 | } |
||
| 187 | |||
| 188 | /** |
||
| 189 | * Returns embed html type. |
||
| 190 | */ |
||
| 191 | public function htmlType(): string |
||
| 192 | { |
||
| 193 | return $this->html->type(); |
||
| 194 | } |
||
| 195 | |||
| 196 | /** |
||
| 197 | * Returns media provider data. |
||
| 198 | */ |
||
| 199 | public function url(): string |
||
| 200 | { |
||
| 201 | return $this->url; |
||
| 202 | } |
||
| 203 | |||
| 204 | /** |
||
| 205 | * Returns media provider data with applied options if set. |
||
| 206 | */ |
||
| 207 | public function data(): array |
||
| 208 | { |
||
| 209 | $data = array_merge($this->data, $this->getProviderOptions()); |
||
| 210 | |||
| 211 | return $data; |
||
| 212 | } |
||
| 213 | |||
| 214 | /** |
||
| 215 | * Returns width of the embed. 0 if not set. |
||
| 216 | */ |
||
| 217 | public function width(): int |
||
| 220 | } |
||
| 221 | |||
| 222 | /** |
||
| 223 | * Returns height of the embed. 0 if not set. |
||
| 224 | */ |
||
| 225 | public function height(): int |
||
| 228 | } |
||
| 229 | |||
| 230 | /** |
||
| 231 | * Returns width/height ratio of the embed. 0 if dimensions are not set. |
||
| 232 | */ |
||
| 233 | public function ratio(): float |
||
| 234 | { |
||
| 235 | if (isset($this->data()['width']) && isset($this->data()['height'])) { |
||
| 236 | return $this->data()['width'] / $this->data()['height']; |
||
| 237 | } |
||
| 238 | |||
| 239 | return 0; |
||
| 240 | } |
||
| 241 | |||
| 242 | /** |
||
| 243 | * Returns string describing media type. According to OEmbed spec it could be: |
||
| 244 | * one of these: photo, video, link, rich |
||
| 245 | */ |
||
| 246 | public function mediaType(): string |
||
| 247 | { |
||
| 248 | return $this->data['type']; |
||
| 249 | } |
||
| 250 | |||
| 251 | /** |
||
| 252 | * Returns boolean flag telling if given embed data has a thumbnail. |
||
| 253 | */ |
||
| 254 | public function hasThumbnail(): bool |
||
| 255 | { |
||
| 256 | return is_array($this->thumbnail); |
||
| 257 | } |
||
| 258 | |||
| 259 | /** |
||
| 260 | * Returns thumbnail data in an array form containing url and its dimensions. |
||
| 261 | * |
||
| 262 | */ |
||
| 263 | public function thumbnail(): ?array |
||
| 264 | { |
||
| 265 | return $this->thumbnail; |
||
| 266 | } |
||
| 267 | |||
| 268 | /** |
||
| 269 | * Reutrns string for thumbnail or null if it's not set. |
||
| 270 | */ |
||
| 271 | public function thumbnailUrl(): ?string |
||
| 272 | { |
||
| 273 | return $this->hasThumbnail() ? $this->thumbnail['url'] : null; |
||
| 274 | } |
||
| 275 | |||
| 276 | /** |
||
| 277 | * Return thumbnail width or 0 if not set. |
||
| 278 | */ |
||
| 279 | public function thumbnailWidth(): int |
||
| 280 | { |
||
| 281 | return $this->hasThumbnail() ? $this->thumbnail['width'] : 0; |
||
| 282 | } |
||
| 283 | |||
| 284 | /** |
||
| 285 | * Return thumbnail height or 0 if not set. |
||
| 286 | */ |
||
| 287 | public function thumbnailHeight(): int |
||
| 288 | { |
||
| 289 | return $this->hasThumbnail() ? $this->thumbnail['height'] : 0; |
||
| 290 | } |
||
| 291 | |||
| 292 | /** |
||
| 293 | * Converts Embed instance into an array for caching. |
||
| 294 | */ |
||
| 295 | public function toArray(): array |
||
| 296 | { |
||
| 297 | return [ |
||
| 298 | 'type' => $this->type, |
||
| 299 | 'url' => $this->url, |
||
| 300 | 'data' => $this->data, |
||
| 301 | ]; |
||
| 302 | } |
||
| 303 | |||
| 304 | /** |
||
| 305 | * Converts Embed instance into json string. |
||
| 306 | */ |
||
| 307 | public function toJson(): string |
||
| 308 | { |
||
| 309 | return json_encode($this->toArray()); |
||
| 310 | } |
||
| 311 | |||
| 312 | /** |
||
| 313 | * Returns HtmlBuilder instance of OEmbed media provider HTML string. |
||
| 314 | */ |
||
| 315 | protected function extractOEmbedHtml(string $html): HtmlBuilder |
||
| 316 | { |
||
| 317 | $script = null; |
||
| 318 | $doc = new DOMDocument(); |
||
| 319 | $doc->loadHTML("<html><body>$html</body></html>", LIBXML_NOERROR); |
||
| 320 | $body = $doc->documentElement->lastChild; |
||
| 321 | |||
| 322 | $scripts = $body->getElementsByTagName('script'); |
||
| 323 | foreach ($scripts as $node) { |
||
| 324 | $script = $node->getAttribute('src'); |
||
| 325 | break; |
||
| 326 | } |
||
| 327 | |||
| 328 | if (!$body->firstChild) { |
||
| 329 | throw new HtmlParsingException(); |
||
| 330 | } |
||
| 331 | |||
| 332 | if ($body->firstChild && $body->firstChild->nodeName === 'iframe') { |
||
| 333 | $attrs = []; |
||
| 334 | |||
| 335 | foreach ($body->firstChild->attributes as $attribute) { |
||
| 336 | $attrs[$attribute->name] = $attribute->value; |
||
| 337 | } |
||
| 338 | |||
| 339 | $attrs = array_merge($attrs, $this->getProviderHtmlOptions()); |
||
| 340 | |||
| 341 | return new HtmlBuilder(HtmlBuilder::TYPE_IFRAME, $attrs, $script); |
||
| 342 | } |
||
| 343 | |||
| 344 | return new HtmlBuilder(HtmlBuilder::TYPE_RAW, $html, $script); |
||
| 345 | } |
||
| 346 | |||
| 347 | /** |
||
| 348 | * Returns HtmlBuilder instance of Regex media provider HTML string. |
||
| 349 | */ |
||
| 350 | protected function extractRegexHtml(array $html): HtmlBuilder |
||
| 354 | } |
||
| 355 | } |
||
| 356 |