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<?php |
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/** |
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* SureForms - AI Form Builder. |
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* |
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* @package sureforms |
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* @since 0.0.8 |
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*/ |
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|
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namespace SRFM\Inc\AI_Form_Builder; |
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|
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use SRFM\Inc\Traits\Get_Instance; |
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|
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// Exit if accessed directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* SureForms AI Form Builder Class. |
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*/ |
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class AI_Form_Builder { |
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use Get_Instance; |
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|
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/** |
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* Fetches ai data from the middleware server |
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* |
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* @param \WP_REST_Request $request request object. |
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* @since 0.0.8 |
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* @return void |
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*/ |
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public function generate_ai_form( $request ) { |
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|
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// Get the params. |
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$params = $request->get_params(); |
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|
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// If the message array doesn't exist, abandon ship. |
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if ( empty( $params['message_array'] ) || ! is_array( $params['message_array'] ) ) { |
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wp_send_json_error( [ 'message' => __( 'The message array was not supplied', 'sureforms' ) ] ); |
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} |
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|
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// Set the token count to 0, and create messages array. |
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$messages = []; |
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|
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// Start with the last message - going upwards until the token count hits 2000. |
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foreach ( array_reverse( $params['message_array'] ) as $current_message ) { |
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// If the message content doesn't exist, skip it. |
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if ( empty( $current_message['content'] ) ) { |
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continue; |
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} |
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|
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// Add the message to the start of the messages to send to the SCS Middleware. |
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array_unshift( $messages, $current_message ); |
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} |
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|
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// Bail if no usable prompt remained after filtering empty messages. |
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if ( empty( $messages ) || empty( $messages[0]['content'] ) ) { |
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wp_send_json_error( [ 'message' => __( 'No prompt was supplied.', 'sureforms' ) ] ); |
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} |
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|
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// Server-side prompt-length cap. The UI enforces a 2000-char limit via maxlength, but that |
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// is client-side only and can be bypassed by a crafted request, so mirror it here. This is |
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// cost/resource hardening — output is always escaped, so this is not an XSS concern. |
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if ( mb_strlen( (string) $messages[0]['content'] ) > 2000 ) { |
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wp_send_json_error( [ 'message' => __( 'The prompt is too long. Please shorten it and try again.', 'sureforms' ) ] ); |
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} |
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|
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// Get the response from the endpoint. |
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$response = AI_Helper::get_chat_completions_response( |
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apply_filters( |
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'srfm_ai_form_generator_body', |
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[ |
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'query' => $messages[0]['content'], |
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], |
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$params |
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) |
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); |
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|
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// check if response is an array if not then send error. |
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if ( ! is_array( $response ) ) { |
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wp_send_json_error( [ 'message' => __( 'The SureForms AI Middleware encountered an error.', 'sureforms' ) ] ); |
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} |
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|
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if ( ! empty( $response['error'] ) ) { |
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// If the response has an error, handle it and report it back. |
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// We sanitize before returning so OpenAI / middleware infra details |
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// (URLs, request IDs, model names, account IDs) do not leak to the |
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// client; the raw message is preserved in the debug log via |
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// AI_Helper::sanitize_ai_error_message() when WP_DEBUG[_LOG] is on. |
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$raw = ''; |
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if ( is_array( $response['error'] ) && ! empty( $response['error']['message'] ) ) { |
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// If any error message received from OpenAI. |
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$raw = $response['error']['message']; |
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} elseif ( is_string( $response['error'] ) ) { |
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// If any error message received from the middleware server. |
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$raw = $response['error']; |
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} |
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$message = AI_Helper::sanitize_ai_error_message( $raw, 'generate/form' ); |
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if ( '' === $message ) { |
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$message = __( 'The SureForms AI Middleware encountered an error.', 'sureforms' ); |
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} |
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wp_send_json_error( [ 'message' => $message ] ); |
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} |
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|
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// Validate the expected form structure piece by piece so we can return specific errors. |
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if ( empty( $response['form'] ) || ! is_array( $response['form'] ) ) { |
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wp_send_json_error( |
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[ |
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'message' => __( 'The AI did not return a form. Please refine your prompt and try again.', 'sureforms' ), |
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] |
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); |
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} |
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|
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if ( empty( $response['form']['formTitle'] ) ) { |
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wp_send_json_error( |
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[ |
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'message' => __( 'The AI response is missing a form title. Please try again.', 'sureforms' ), |
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] |
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); |
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} |
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|
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if ( |
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empty( $response['form']['formFields'] ) || |
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! is_array( $response['form']['formFields'] ) |
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) { |
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wp_send_json_error( |
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[ |
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'message' => __( 'The AI was unable to generate form fields. Please try again.', 'sureforms' ), |
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] |
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); |
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} |
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|
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wp_send_json_success( $response ); |
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} |
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|
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} |
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|
