feat: allow users to change GPT model

inc/API.php

@@ -244,6 +244,9 @@ public function update_settings( $request ) {
 				'default_message'      => function ( $value ) {
 					return is_string( $value );
 				},
+				'chat_model'		   => function ( $value ) {
+					return is_string( $value );
+				},
 				'temperature'          => function ( $value ) {
 					return is_numeric( $value );
 				},

inc/Main.php

@@ -172,6 +172,7 @@ public static function get_default_settings() {
 				'chat_enabled'         => true,
 				'welcome_message'      => __( 'Hello! How can I help you today?', 'hyve-lite' ),
 				'default_message'      => __( 'Sorry, I\'m not able to help with that.', 'hyve-lite' ),
+				'chat_model'           => 'gpt-4o-mini',
 				'temperature'          => 1,
 				'top_p'                => 1,
 				'moderation_threshold' => array(

inc/OpenAI.php

@@ -27,6 +27,13 @@ class OpenAI {
 	 */
 	private $prompt_version = '1.1.0';
 
+	/**
+	 * Chat Model.
+	 * 
+	 * @var string
+	 */
+	private $chat_model = 'gpt-4o-mini';
+
 	/**
 	 * API Key.
 	 * 
@@ -50,6 +57,7 @@ public function __construct( $api_key = '' ) {
 		$settings           = Main::get_settings();
 		$this->api_key      = ! empty( $api_key ) ? $api_key : ( isset( $settings['api_key'] ) ? $settings['api_key'] : '' );
 		$this->assistant_id = isset( $settings['assistant_id'] ) ? $settings['assistant_id'] : '';
+		$this->chat_model   = isset( $settings['chat_model'] ) ? $settings['chat_model'] : $this->chat_model;
 
 		if ( $this->assistant_id && version_compare( $this->prompt_version, get_option( 'hyve_prompt_version', '1.0.0' ), '>' ) ) {
 			$this->update_assistant();
@@ -86,7 +94,7 @@ public function create_assistant() {
 			array(
 				'instructions' => "Assistant Role & Concise Response Guidelines: As a Support Assistant, provide precise, to-the-point answers based exclusively on the previously provided context.\r\n\r\nSET OF PRINCIPLES TO FOLLOW:\r\n\r\n1. **Identify the Context and Question**:\r\n1.1. **START CONTEXT**: Identify the context provided in the message. **: END CONTEXT**\r\n1.2. **START QUESTION**: Identify the question that needs to be answered based on the context.. **: END QUESTION**\r\n\r\n2. **Check the Context for Relevance**:\r\n2.1. Determine if the context contains information directly relevant to the question.\r\n2.2. If the context addresses the user's question, proceed to the next step.\r\n2.3. If the question is a greeting, respond appropriately with the greeting.\r\n2.4. If the context does not address the user's question, respond with: `{\"response\": \"\", \"success\": false}`.\r\n\r\n3. **Formulate the Response**:\r\n3.1. If the context is sufficient, formulate a clear and concise response using only the information provided in the context.\r\n3.2. Ensure the response includes all important details covered in the context, but avoid any extraneous information.\r\n\r\n4. **Avoid Referring to the Context**:\r\n4.1. Do not refer to the context or state that the response is based on the context in your answer.\r\n4.2. Ensure the response is straightforward and directly answers the question.\r\n\r\n5. **Generate the JSON Response**:\r\n5.1. Structure the response according to the following JSON schema:\r\n\r\n\r\n{\r\n  \"\$schema\": \"http:\/\/json-schema.org\/draft-07\/schema#\",\r\n  \"type\": \"object\",\r\n  \"properties\": {\r\n    \"response\": {\r\n      \"type\": \"string\",\r\n      \"description\": \"Contains the response to the question. Do not include it if the answer wasn't available in the context.\"\r\n    },\r\n    \"success\": {\r\n      \"type\": \"boolean\",\r\n      \"description\": \"Indicates whether the question was successfully answered from provided context.\"\r\n    }\r\n  },\r\n  \"required\": [\"success\"]\r\n}\r\n\r\nExample Usage:\r\n\r\nContext: [Provide context here]\r\nQuestion: [Provide question here]\r\n\r\nExpected Behavior:\r\n\r\n- If the question is fully covered by the context, provide a response using the provided JSON schema.\r\n- If the question is not fully covered by the context, respond with: {\"response\": \"\", \"success\": false}.\r\n\r\nExample Responses:\r\n\r\n- Context covers the question: {\"response\": \"Here is the information you requested.\", \"success\": true}\r\n- Context does not cover the question: {\"response\": \"\", \"success\": false}\r\n- Context does not cover the question but is a greeting: {\"response\": \"Hello, what can I help you with?.\", \"success\": true}",
 				'name'         => 'Chatbot by Hyve',
-				'model'        => 'gpt-3.5-turbo-0125',
+				'model'        => $this->chat_model,
 			)
 		);
 
@@ -273,6 +281,7 @@ public function create_run( $messages, $thread ) {
 			array(
 				'assistant_id'        => $this->assistant_id,
 				'additional_messages' => $messages,
+				'model'               => $this->chat_model,
 				'temperature'         => $settings['temperature'],
 				'top_p'               => $settings['top_p'],
 				'response_format'     => array(

src/backend/parts/settings/Assistant.js

@@ -9,7 +9,8 @@ import {
 	Button,
 	Panel,
 	PanelRow,
-	RangeControl
+	RangeControl,
+	SelectControl
 } from '@wordpress/components';
 
 import {
@@ -70,6 +71,26 @@ const Assistant = () => {
 			<Panel
 				header={ __( 'Assistant Settings', 'hyve-lite' ) }
 			>
+				<PanelRow>
+					<SelectControl
+						label={ __( 'Model', 'hyve-lite' ) }
+						help={ __( 'What model to use for Chat.', 'hyve-lite' ) }
+						options={ [
+							{
+								label: __( 'GPT 4o Mini', 'hyve-lite' ),
+								value: 'gpt-4o-mini'
+							},
+							{
+								label: __( 'GPT 3.5 Turbo 0125', 'hyve-lite' ),
+								value: 'gpt-3.5-turbo-0125'
+							}
+						] }
+						value={ settings.model }
+						disabled={ isSaving }
+						onChange={ ( newValue ) => setSetting( 'chat_model', newValue ) }
+					/>
+				</PanelRow>
+
 				<PanelRow>
 					<RangeControl
 						label={ __( 'Temperature', 'hyve-lite' ) }