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<?php |
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/** |
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* AIFns Helpers class |
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* |
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* @package RadiusTheme\SB |
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*/ |
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|
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namespace RadiusTheme\SB\AI; |
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|
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// Do not allow directly accessing this file. |
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use Exception; |
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use RadiusTheme\SB\AI\AIServices\DeepSeekAdapter; |
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use RadiusTheme\SB\AI\AIServices\GeminiAdapter; |
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use RadiusTheme\SB\AI\AIServices\OpenAIAdapter; |
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use RadiusTheme\SB\Helpers\Fns; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit( 'This script cannot be accessed directly.' ); |
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} |
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|
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/** |
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* Fns class |
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*/ |
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class AIFns { |
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/** |
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* @var array |
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*/ |
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private static $cache = []; |
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/** |
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* AI Embeddings database table name. |
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* |
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* @var string |
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*/ |
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public static $ai_embeddings_table = 'rtsb_ai_embeddings'; |
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/** |
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* Retrieve the activated AI client and its API key. |
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* |
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* @return array|false { |
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* @type string $client Active AI provider name. |
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* @type string $api_key Corresponding API key. |
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* } |
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*/ |
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public static function activated_ai_data() { |
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$ai_tools = self::get_options( 'ai_tools' ); |
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if ( empty( $ai_tools ) ) { |
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return false; |
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} |
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$apiKey = ''; |
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switch ( $ai_tools ) { |
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case 'OpenAI': |
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$apiKey = self::get_options( 'gpt_api_key' ); |
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break; |
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case 'Gemini': |
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$apiKey = self::get_options( 'gemini_api_key' ); |
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break; |
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case 'DeepSeek': |
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$apiKey = self::get_options( 'deepseek_api_key' ); |
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break; |
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} |
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if ( empty( $apiKey ) ) { |
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return false; |
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} |
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return [ |
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'client' => $ai_tools, |
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'api_key' => $apiKey, |
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]; |
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} |
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/** |
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* Get total published listings |
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*/ |
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public static function activated_semantic_search() { |
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$ai_data = self::activated_ai_data(); |
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if ( ! $ai_data || ! in_array( $ai_data['client'], [ 'OpenAI', 'Gemini' ], true ) ) { |
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return false; |
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} |
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$semantic_search = self::get_options( 'enable_semantic_search' ); |
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return 'on' === $semantic_search; |
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} |
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|
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/** |
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* Get total published listings |
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*/ |
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public static function need_product_embedding() { |
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$listings = get_posts( |
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[ |
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'post_type' => 'product', |
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'post_status' => 'publish', |
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'fields' => 'ids', |
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'meta_query' => [ // phpcs:ignore WordPress.DB.SlowDBQuery |
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[ |
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'key' => '_has_embedding', |
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'compare' => 'NOT EXISTS', |
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], |
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], |
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] |
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); |
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return count( $listings ); |
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} |
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/** |
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* Returns the minimum cosine similarity threshold for semantic matching. |
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* |
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* Converts the user-selected percentage (1–100%) into a realistic cosine |
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* similarity range. Semantic search typically requires a threshold between |
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* 0.55–0.90 for meaningful accuracy. |
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* |
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* @return float Cosine similarity threshold (0.55–0.90). |
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*/ |
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public static function get_embedding_minimum_accuracy() { |
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$percentage = absint( self::get_options( 'minimum_matching_percentage' ) ); |
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return ! empty( $percentage ) ? absint( $percentage ) / 100 : 0.4; |
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} |
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|
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/** |
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* @param string $key Default Attribute. |
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* @param array|string $default Default. |
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* @return array|string |
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*/ |
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public static function get_options( $key = null, $default = '' ) { |
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$options = Fns::get_options( 'general', 'ai_implementation' ); |
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if ( $key ) { |
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if ( isset( $options[ $key ] ) ) { |
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return $options[ $key ]; |
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} else { |
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return $default; |
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} |
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} |
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return $options; |
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} |
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|
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/** |
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* Initializes the AI service based on the configured AI tools. |
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* |
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* This method retrieves the AI tool settings from the configuration, |
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* dynamically instantiates the appropriate AI client class, and creates |
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* the corresponding AI service adapter. It handles validation and error |
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* reporting for missing or invalid configurations. |
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* |
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* @since 1.0.0 |
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* |
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* @throws Exception If the client class cannot be instantiated or an error occurs during initialization. |
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* |
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* @return bool|DeepSeekAdapter|GeminiAdapter|OpenAIAdapter The initialized AI service adapter instance. |
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*/ |
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public static function initializeAIService() { |
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$ai_data = self::activated_ai_data(); |
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if ( ! $ai_data ) { |
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return false; |
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} |
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$ai_tools = $ai_data['client']; |
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$clientClass = 'RadiusTheme\\SB\\AI\\AIServices\\AIClients\\' . $ai_tools . 'Client'; |
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if ( ! class_exists( $clientClass ) ) { |
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return false; |
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} |
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try { |
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$client = new $clientClass(); |
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return self::createAIService( $ai_tools, $client ); |
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} catch ( Exception $e ) { |
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return false; |
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} |
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} |
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|
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/** |
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* Creates an AI service adapter based on the specified AI type. |
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* |
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* This factory method instantiates and returns the appropriate AI service |
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* adapter (OpenAI, Gemini, or DeepSeek) based on the provided AI type string. |
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* Each adapter implements a common interface for interacting with different |
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* AI providers. |
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* |
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* @since 1.0.0 |
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* |
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* @param string $aiType The type of AI service ('OpenAI', 'Gemini', or 'DeepSeek'). |
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* @param object $client The AI client instance to be wrapped by the adapter. |
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* |
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* @throws Exception If the specified AI service type is not supported. |
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* |
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* @return OpenAIAdapter|GeminiAdapter|DeepSeekAdapter The created AI service adapter instance. |
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*/ |
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public static function createAIService( string $aiType, $client ) { |
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switch ( $aiType ) { |
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case 'OpenAI': |
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return new OpenAIAdapter( $client ); |
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case 'Gemini': |
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return new GeminiAdapter( $client ); |
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case 'DeepSeek': |
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return new DeepSeekAdapter( $client ); |
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default: |
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throw new Exception( 'AI service not supported' ); |
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} |
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} |
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/** |
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* Build an AI prompt based on content type and instruction language. |
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* |
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* @param string $content_type The type of content to generate (title, description, short_description). |
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* @param string $instruction The product information or user instruction. |
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* |
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* @return string The full AI prompt with language guidance. |
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*/ |
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public static function build_prompt( $content_type, $instruction ) { |
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// Sanitize instruction. |
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$instruction = trim( preg_replace( '/\s+/', ' ', $instruction ) ); |
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// Truncate if needed (based on AI model token limits). |
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if ( strlen( $instruction ) > 2500 ) { |
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$instruction = substr( $instruction, 0, 2500 ) . '...'; |
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} |
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$prompts = [ |
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'title' => sprintf( |
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"Generate a compelling, SEO-friendly product title (50-70 chars) based on:\n\n%s\n\nCreate only the title.", |
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$instruction |
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), |
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'description' => sprintf( |
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"Write a detailed product description (150-300 words) based on:\n\n%s\n\nInclude:\n• Key features\n• Benefits\n• Use cases\n• SEO-friendly content\n\nUse clear paragraphs.", |
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$instruction |
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), |
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'short_description' => sprintf( |
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"Write a short description (2-3 sentences, max 160 chars) based on:\n\n%s\n\nHighlight key benefits only.", |
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$instruction |
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), |
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]; |
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$base_prompt = $prompts[ $content_type ] ?? ''; |
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$language_hint = "\n\nIMPORTANT: Write in the same language as the input above."; |
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return $base_prompt . $language_hint; |
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} |
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} |
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|
