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<?php |
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|
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namespace AATXT\App\AIProviders\Azure; |
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|
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use AATXT\App\Admin\PluginOptions; |
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use AATXT\App\AIProviders\AIProviderInterface; |
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use AATXT\App\Exceptions\Azure\AzureComputerVisionException; |
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use AATXT\App\Exceptions\Azure\AzureTranslateInstanceException; |
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use AATXT\Config\Constants; |
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|
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class AzureComputerVisionCaptionsResponse implements AIProviderInterface |
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{ |
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private function __construct() |
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{ |
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} |
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|
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public static function make(): AzureComputerVisionCaptionsResponse |
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{ |
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return new self(); |
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} |
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|
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/** |
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* Make a request to Azure Computer Vision APIs to retrieve the contents of the uploaded image |
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* If necessary, translate the description into the requested language |
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* @param string $imageUrl |
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* @return string |
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* @throws AzureComputerVisionException |
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* @throws AzureTranslateInstanceException |
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*/ |
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public function response(string $imageUrl): string |
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{ |
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$response = wp_remote_post( |
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PluginOptions::endpointAzureComputerVision() . 'computervision/imageanalysis:analyze?api-version='.Constants::AATXT_AZURE_COMPUTER_VISION_API_VERSION.'&features=caption&language=en&gender-neutral-caption=False', |
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[ |
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'headers' => [ |
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'content-type' => 'application/json', |
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'Ocp-Apim-Subscription-Key' => PluginOptions::apiKeyAzureComputerVision(), |
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], |
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'body' => json_encode([ |
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'url' => $imageUrl, |
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]), |
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'method' => 'POST', |
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] |
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); |
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|
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$responseBody = wp_remote_retrieve_body($response); |
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if(empty($responseBody)) { |
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if (is_object($response) && property_exists($response, 'errors') && array_key_exists('http_request_failed', $response->errors)) { |
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throw new AzureTranslateInstanceException("Error: " . $response->errors['http_request_failed'][0]); |
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} |
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if (is_array($response) && array_key_exists('response', $response)) { |
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throw new AzureTranslateInstanceException("Code: " . $response['response']['code'] . " - " . $response['response']['message']); |
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} |
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throw new AzureComputerVisionException("Error: please check if the Azure endpoint in plugin options is right"); |
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} |
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|
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$bodyResult = json_decode($responseBody, true); |
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if (array_key_exists('error', $bodyResult)) { |
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throw new AzureComputerVisionException("Error code: " . $bodyResult['error']['code'] . " - " . $bodyResult['error']['message']); |
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} |
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|
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$altText = $bodyResult['captionResult']['text']; |
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$selectedLanguage = PluginOptions::languageAzureTranslateInstance(); |
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|
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// If the default language (en) is selected it is not necessary a translation |
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if ($selectedLanguage == Constants::AATXT_AZURE_DEFAULT_LANGUAGE) { |
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return $altText; |
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} |
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|
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return (AzureTranslator::make())->translate($altText, $selectedLanguage); |
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} |
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} |
