auto-alt-text / src / App / AIProviders / Azure / AzureTranslator.php

AzureTranslator.php in Auto Alt Text 2.1.0, at src/App/AIProviders/Azure/AzureTranslator.php

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1	<?php
2
3	namespace AATXT\App\AIProviders\Azure;
4
5	use AATXT\App\Admin\PluginOptions;
6	use AATXT\App\AIProviders\AITranslatorInterface;
7	use AATXT\App\Exceptions\Azure\AzureTranslateInstanceException;
8
9	class AzureTranslator implements AITranslatorInterface
10	{
11
12	private function __construct()
13	{
14	}
15
16	public static function make(): AzureTranslator
17	{
18	return new self();
19	}
20
21	/**
22	* Translate a string sending a request to the Azure translation Api
23	* @param string $text
24	* @param string $language
25	* @return string
26	* @throws AzureTranslateInstanceException
27	*/
28	public function translate(string $text, string $language): string
29	{
30	$apiKey = PluginOptions::apiKeyAzureTranslateInstance();
31	$region = PluginOptions::regionAzureTranslateInstance();
32	$endpoint = PluginOptions::endpointAzureTranslateInstance();
33
34	if (empty($apiKey) \|\| empty($region) \|\| empty($endpoint)) {
35	return $text;
36	}
37
38	$route = "translate?api-version=3.0&from=en&to=" . $language;
39
40	$response = wp_remote_post(
41	$endpoint . $route,
42	[
43	'headers' => [
44	'Content-type' => 'application/json',
45	'Ocp-Apim-Subscription-Key' => $apiKey,
46	'Ocp-Apim-Subscription-Region' => $region,
47	],
48	'body' => json_encode([
49	[
50	'Text' => $text
51	]
52	]),
53	'method' => 'POST',
54	]
55	);
56
57
58	//$bodyResult = json_decode(wp_remote_retrieve_body($response), true);
59
60	$responseBody = wp_remote_retrieve_body($response);
61	if (empty($responseBody)) {
62	if (is_object($response) && property_exists($response, 'errors') && array_key_exists('http_request_failed', $response->errors)) {
63	throw new AzureTranslateInstanceException("Error: " . $response->errors['http_request_failed'][0]);
64	}
65	if (is_array($response) && array_key_exists('response', $response)) {
66	throw new AzureTranslateInstanceException("Code: " . $response['response']['code'] . " - " . $response['response']['message']);
67	}
68	throw new AzureTranslateInstanceException("Error: please check if the Azure endpoint in plugin options is right");
69	}
70
71	$bodyResult = json_decode($responseBody, true);
72
73	if (array_key_exists('error', $bodyResult)) {
74	throw new AzureTranslateInstanceException("Error code: " . $bodyResult['error']['code'] . " - " . $bodyResult['error']['message']);
75	}
76
77	return $bodyResult[0]['translations'][0]['text'];
78	}
79
80	/**
81	* Get the list of supported languages from Azure Api
82	* @return array
83	* @throws AzureTranslateInstanceException
84	*/
85	public function supportedLanguages(): array
86	{
87	$apiKey = PluginOptions::apiKeyAzureTranslateInstance();
88	if (empty($apiKey)) {
89	return [];
90	}
91	$endpoint = PluginOptions::endpointAzureTranslateInstance();
92	if (empty($endpoint)) {
93	return [];
94	}
95
96	$route = 'languages?api-version=3.0';
97
98	$url = $endpoint . $route;
99
100	$headers = array(
101	'Content-type' => 'application/json',
102	'Ocp-Apim-Subscription-Key' => $apiKey
103	);
104
105	$response = wp_remote_get(
106	$url,
107	array(
108	'headers' => $headers
109	)
110	);
111
112	$bodyResult = json_decode(wp_remote_retrieve_body($response), true);
113
114	if (empty($bodyResult)) {
115	throw new AzureTranslateInstanceException(esc_html__('No language retrieved: maybe the translation endpoint is wrong. Please check it out and try again.', 'auto-alt-text'));
116	}
117
118	if (array_key_exists('error', $bodyResult)) {
119	throw new AzureTranslateInstanceException("Error code: " . $bodyResult['error']['code'] . " - " . $bodyResult['error']['message']);
120	}
121
122	return $bodyResult['translation'];
123	}
124	}