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 |