Ai Affiliate marketing Chatbot on WordPress – Backend

function test_aff_generate_chat_response( $last_prompt, $conversation_history ) {

$json_string = '[
        {
            "unqiue_service_name": "Hostinger",
            "starting_price": "$2.99/month",
            "description": "Hostinger offers Managed WordPress Hosting with multiple plans to suit different needs, making it easier to launch a professional online presence.",
            "features": "WordPress multisite support, 100 domain-based email addresses, WordPress themes, Over 100 subdomains",
            "uptime_guarantee": null,
            "security_features": null,
            "backup_options": null,
            "free_domain": "Yes, a free domain name registration is included in WordPress plans.",
            "money_back_guarantee": "Yes, a 30-day money-back guarantee is provided.",
            "details": "Free domain registration includes .com extension. You can create up to 100 domain-based email addresses at no extra cost.",
            "affiliate_link": "https://affiliate.link/hostinger"
        },
        {
            "unqiue_service_name": "SiteGround",
            "starting_price": null,
            "description": "SiteGround offers three ways to transfer a WordPress website: manual migration by experts, self-transfer, or using the free WordPress Migrator plugin.",
            "features": "Manual migration by SiteGround experts, self-transfer for tech-savvy users, and a free WordPress Migrator plugin for easy migration.",
            "uptime_guarantee": null,
            "security_features": null,
            "backup_options": null,
            "free_domain": null,
            "money_back_guarantee": null,
            "details": "The WordPress Migrator plugin is free and easy to use, allowing users to transfer their WordPress websites quickly.",
            "affiliate_link": "https://affiliate.link/siteground"
        },
        {
            "unqiue_service_name": "GreenGeeks",
            "starting_price": null,
            "description": "GreenGeeks offers a secure, high-performance platform optimized for WordPress websites with eco-friendly hosting, offsetting 300% of the energy consumption with renewable energy credits.",
            "features": "1-click WordPress installation, automatic WordPress updates, advanced tools like WP Staging, WP-CLI, and Git, high-performance technologies including SSD hard drives, LiteSpeed Web Server, MariaDB database servers, PHP 8, HTTP/2, LSCache technology, CloudFlare CDN, 24/7 WordPress expert support, free WordPress site migration services.",
            "uptime_guarantee": null,
            "security_features": "Security features are included in the shared hosting plans, but specific details are not mentioned.",
            "backup_options": null,
            "free_domain": null,
            "money_back_guarantee": null,
            "details": "GreenGeeks is an eco-friendly web host, offsetting 300% of the energy your site uses through renewable energy credits. The service includes a staging option for testing before moving a WordPress site. WordPress installations are automatically updated with previous versions available if needed.",
            "affiliate_link": "https://affiliate.link/greengeeks"
        }
    ]';

    $affiliate_system_prompt = "You are an expert in wordpress hosting services,
    I will provide you with a [JSON_DATA_FILE] containing a list of services with their features and details.
    
    Your task is to keep questioning the user based on the [JSON_DATA_FILE] till you know the best service to suggest for him.
    
    IMPORTANT: 
    Make sure to ask multiple questions for better user experience.
    Ask one question at a time.
    Make sure Return the affiliate link with your suggestion.

    [JSON_DATA_FILE]:
    $json_string";	
    
    
    
// OpenAI API URL and key
$api_url = 'https://api.openai.com/v1/chat/completions';
$api_key = 'sk-proj-UOHkGB0IJK0uZsExEn5IT3BlbkFJyKgDofOZAgR9zvNSBvhR'; // Replace with your actual API key

// Headers for the OpenAI API
$headers = [
    'Content-Type' => 'application/json',
    'Authorization' => 'Bearer ' . $api_key
];

// Add the last prompt to the conversation history
$conversation_history[] = [
    'role' => 'system',
    'content' => $affiliate_system_prompt
];

$conversation_history[] = [
    'role' => 'user',
    'content' => $last_prompt
];

// Body for the OpenAI API
$body = [
    'model' => 'gpt-4o', // You can change the model if needed
    'messages' => $conversation_history,
    'temperature' => 0.7 // You can adjust this value based on desired creativity
];

// Args for the WordPress HTTP API
$args = [
    'method' => 'POST',
    'headers' => $headers,
    'body' => json_encode($body),
    'timeout' => 120
];

// Send the request
$response = wp_remote_request($api_url, $args);

// Handle the response
if (is_wp_error($response)) {
    return $response->get_error_message();
} else {
    $response_body = wp_remote_retrieve_body($response);
    $data = json_decode($response_body, true);

    if (json_last_error() !== JSON_ERROR_NONE) {
        return [
            'success' => false,
            'message' => 'Invalid JSON in API response',
            'result' => ''
        ];
    } elseif (!isset($data['choices'])) {
        return [
            'success' => false,
            'message' => 'API request failed. Response: ' . $response_body,
            'result' => ''
        ];
    } else {
        $content = $data['choices'][0]['message']['content'];
        return [
            'success' => true,
            'message' => 'Response Generated',
            'result' => $content
        ];
    }
}
}



function test_aff_handle_chat_bot_request( WP_REST_Request $request ) {
$last_prompt = $request->get_param('last_prompt');
$conversation_history = $request->get_param('conversation_history');

$response = test_aff_generate_chat_response($last_prompt, $conversation_history);
return $response;
}

function test_aff_load_chat_bot_base_configuration(WP_REST_Request $request) {
// You can retrieve user data or other dynamic information here
$user_avatar_url = "https://learnwithhasan.com/wp-content/uploads/2023/09/pngtree-businessman-user-avatar-wearing-suit-with-red-tie-png-image_5809521.png"; // Implement this function
$bot_image_url = "https://learnwithhasan.com/wp-content/uploads/2023/12/site-logo-mobile.png"; // Implement this function

$response = array(
'botStatus' => 1,
'StartUpMessage' => "Hi, How are you?",
'fontSize' => '16',
'userAvatarURL' => $user_avatar_url,
'botImageURL' => $bot_image_url,
// Adding the new field
'commonButtons' => array(
    array(
        'buttonText' => 'Pick Hosting Service',
        'buttonPrompt' => 'I need help picking a hosting service please.'
    )
    

)

);

$response = new WP_REST_Response($response, 200);

return $response;
}

add_action( 'rest_api_init', function () {
register_rest_route( 'myapi/v1', '/test-aff-chat-bot/', array(
   'methods' => 'POST',
   'callback' => 'test_aff_handle_chat_bot_request',
   'permission_callback' => '__return_true'
) );

register_rest_route('myapi/v1', '/test-aff-chat-bot-config', array(
    'methods' => 'GET',
    'callback' => 'test_aff_load_chat_bot_base_configuration',
));
} );