78 lines
2 KiB
PHP
78 lines
2 KiB
PHP
<?php
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namespace BavarianRankEngine\Providers;
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class OpenAIProvider implements ProviderInterface {
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private const API_URL = 'https://api.openai.com/v1/chat/completions';
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public function getId(): string {
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return 'openai'; }
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public function getName(): string {
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return 'OpenAI'; }
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public function getModels(): array {
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return array(
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'gpt-4.1' => 'GPT-4.1 (Empfohlen)',
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'gpt-4o' => 'GPT-4o',
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'gpt-4o-mini' => 'GPT-4o Mini (Günstig)',
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'gpt-3.5-turbo' => 'GPT-3.5 Turbo (Sehr günstig)',
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);
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}
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public function testConnection( string $api_key ): array {
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try {
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$this->generateText( 'Say "ok"', $api_key, 'gpt-4o-mini', 5 );
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return array(
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'success' => true,
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'message' => 'Verbindung erfolgreich',
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);
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} catch ( \RuntimeException $e ) {
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return array(
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'success' => false,
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'message' => $e->getMessage(),
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);
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}
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}
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public function generateText( string $prompt, string $api_key, string $model, int $max_tokens = 300 ): string {
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$response = wp_remote_post(
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self::API_URL,
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array(
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'timeout' => 30,
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'headers' => array(
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'Authorization' => 'Bearer ' . $api_key,
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'Content-Type' => 'application/json',
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),
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'body' => wp_json_encode(
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array(
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'model' => $model,
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'messages' => array(
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array(
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'role' => 'user',
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'content' => $prompt,
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),
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),
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'max_tokens' => $max_tokens,
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)
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),
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)
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);
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return $this->parseResponse( $response );
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}
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private function parseResponse( $response ): string {
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if ( is_wp_error( $response ) ) {
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throw new \RuntimeException( esc_html( $response->get_error_message() ) );
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}
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$code = wp_remote_retrieve_response_code( $response );
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$body = json_decode( wp_remote_retrieve_body( $response ), true );
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if ( $code !== 200 ) {
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$msg = $body['error']['message'] ?? "HTTP $code";
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throw new \RuntimeException( esc_html( $msg ) );
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}
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return trim( $body['choices'][0]['message']['content'] ?? '' );
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}
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}
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