options = get_option('mxchat_options');
$this->chat_count = get_option('mxchat_chat_count', 0);
$this->is_activated = $this->is_license_active();
// Initialize default options if they are not set
if (!$this->options) {
$this->initialize_default_options();
}
// Add admin menu and initialize settings
add_action('admin_menu', array($this, 'mxchat_add_plugin_page'));
add_action('admin_init', array($this, 'mxchat_page_init'));
add_action('admin_enqueue_scripts', array($this, 'mxchat_enqueue_admin_assets'));
add_action('wp_ajax_mxchat_delete_chat_history', array($this, 'mxchat_delete_chat_history'));
add_action('admin_post_mxchat_submit_content', array($this, 'mxchat_handle_content_submission'));
add_action('admin_post_mxchat_delete_prompt', array($this, 'mxchat_handle_delete_prompt'));
add_action('wp_ajax_mxchat_fetch_chat_history', array($this, 'mxchat_fetch_chat_history'));
add_action('wp_ajax_nopriv_mxchat_fetch_chat_history', array($this, 'mxchat_fetch_chat_history'));
add_action('admin_post_mxchat_submit_sitemap', array($this, 'mxchat_handle_sitemap_submission'));
add_action('wp_footer', array($this, 'mxchat_append_chatbot_to_body'));
add_action('admin_head-mxchat-prompts', array($this, 'mxchat_enqueue_admin_assets'));
add_action('admin_head-toplevel_page_mxchat-max', array($this, 'mxchat_enqueue_admin_assets'));
add_action('wp_ajax_mxchat_activate_license', array($this, 'mxchat_handle_activate_license'));
add_action('admin_notices', array($this, 'mxchat_display_admin_notice'));
}
// Method to check if the license is active
private function is_license_active() {
$license_status = get_option('mxchat_license_status', 'inactive');
return $license_status === 'active';
}
// Initialize default options
private function initialize_default_options() {
$default_options = array(
'api_key' => '',
'system_prompt_instructions' => '[EXAMPLE INSTRUCTIONS] You are an AI Chatbot assistant for this website. The primary subject you should focus on is [insert proper subject here]. Your main goal is to assist visitors with questions related to this specific topic. Here are some key things to keep in mind:
- Your name is [Chatbot Name]. Always introduce yourself as this name when appropriate.
- Stay focused on topics related to [insert proper subject here]. If a visitor asks about an unrelated topic, politely redirect the conversation to how you can assist them with this subject. If there is an exception topic (e.g., "parking") that you should assist with, you may do so if instructed.
- When appropriate, highlight the benefits of [insert proper subject here]. Offer to guide visitors to relevant pages or provide them with more information.
- If a visitor asks for a purchase link or further information, provide them with this link: [Insert Purchase Link Here]. Always ensure that the link is relevant and directly related to the website\'s offerings.
- Keep your responses short, concise, and to the point. Provide clear and direct answers suitable for a chatbot interaction.
- If you reference specific content, provide a hyperlink to the relevant page using hypertext. Avoid including links that do not directly relate to the content or answer the visitor\'s query.
- Provide answers based on the knowledge available to you. If you do not have an answer to a specific question, let the visitor know that you don’t have the information and suggest where they might find it or offer to help with something else.',
'model' => 'gpt-3.5-turbo',
'rate_limit' => '100',
'rate_limit_message' => 'Rate limit exceeded. Please try again later.',
'top_bar_title' => 'MxChat',
'intro_message' => 'Hello! How can I assist you today?',
'append_to_body' => 'on',
'close_button_color' => '#fff',
'chatbot_bg_color' => '#fff',
'user_message_bg_color' => '#fff',
'user_message_font_color' => '#212121',
'bot_message_bg_color' => '#212121',
'bot_message_font_color' => '#fff',
'top_bar_bg_color' => '#212121',
'send_button_font_color' => '#212121',
'chat_input_font_color' => '#212121',
'chatbot_background_color' => '#212121',
'icon_color' => '#fff',
'enable_woocommerce_integration' => '0',
);
// Merge existing options with defaults
$existing_options = get_option('mxchat_options', array());
$merged_options = wp_parse_args($existing_options, $default_options);
// Update the options if they have changed
if ($existing_options !== $merged_options) {
update_option('mxchat_options', $merged_options);
}
// Update the $this->options property
$this->options = $merged_options;
}
public function mxchat_add_plugin_page() {
// Main menu page
add_menu_page(
'MxChat Settings',
'MxChat',
'manage_options',
'mxchat-max',
array($this, 'mxchat_create_admin_page'),
'dashicons-testimonial',
6
);
// Submenu page for Knowledge
add_submenu_page(
'mxchat-max',
'Prompts',
'Knowledge',
'manage_options',
'mxchat-prompts',
array($this, 'mxchat_create_prompts_page')
);
// Submenu page for Chat Transcripts
add_submenu_page(
'mxchat-max', // Corrected parent slug to match the main menu
'Chat Transcripts',
'Transcripts',
'manage_options',
'mxchat-transcripts',
array($this, 'mxchat_create_transcripts_page') // Prefixed function name with mxchat_
);
// Submenu page for Activation Key
add_submenu_page(
'mxchat-max',
'Pro Upgrade',
'Pro Upgrade',
'manage_options',
'mxchat-activation',
array($this, 'mxchat_create_activation_page')
);
}
public function mxchat_handle_content_submission() {
// Check if the form was submitted and the user has sufficient permissions
if (!isset($_POST['submit_content']) || !current_user_can('manage_options')) {
return;
}
// Verify the nonce field for security
$nonce = isset($_POST['mxchat_submit_content_nonce']) ? sanitize_text_field(wp_unslash($_POST['mxchat_submit_content_nonce'])) : '';
if (!wp_verify_nonce($nonce, 'mxchat_submit_content_action')) {
wp_die('Nonce verification failed.');
}
// Sanitize the content input
$article_content = sanitize_textarea_field($_POST['article_content']);
// Generate the embedding vector for the content
$embedding_vector = $this->mxchat_generate_embedding($article_content);
global $wpdb;
$table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
// Check if the 'source_url' column exists in the table and add it if it doesn't
if ($wpdb->get_var($wpdb->prepare("SHOW COLUMNS FROM {$table_name} LIKE %s", 'source_url')) != 'source_url') {
// Use wpdb::query and a prepared statement to avoid SQL injection
$wpdb->query($wpdb->prepare("ALTER TABLE {$table_name} ADD source_url VARCHAR(255) DEFAULT ''"));
}
if (is_array($embedding_vector)) {
// Serialize the embedding vector before storing it
$embedding_vector_serialized = serialize($embedding_vector);
// Insert the content and embedding vector into the database, using a prepared statement
$inserted = $wpdb->insert(
$table_name,
array(
'article_content' => $article_content,
'embedding_vector' => $embedding_vector_serialized,
'source_url' => '', // Empty string as a placeholder for now, or pass a valid URL if applicable
),
array(
'%s', // Format for article_content (string)
'%s', // Format for embedding_vector (serialized string)
'%s', // Format for source_url (string)
)
);
if ($inserted === false) {
error_log('Error inserting content: ' . $wpdb->last_error);
set_transient('mxchat_admin_notice', 'Error inserting content into the database. Please try again.', 30);
} else {
set_transient('mxchat_admin_notice', 'Content successfully submitted!', 30);
}
} else {
error_log('Embedding generation failed for article content: ' . $article_content);
set_transient('mxchat_admin_notice', 'Embedding generation failed. Please ensure your API key is correct and try again.', 30);
}
// Redirect after setting the transient
wp_safe_redirect(esc_url(admin_url('admin.php?page=mxchat-prompts')));
exit;
}
public function mxchat_display_admin_notice() {
// Get the message from the transient
$message = get_transient('mxchat_admin_notice');
if ($message) {
echo '
';
echo '
' . esc_html($message) . '
';
echo '
';
// Delete the transient after displaying the message
delete_transient('mxchat_admin_notice');
}
}
public function mxchat_handle_delete_prompt() {
// Sanitize and validate nonce using wp_unslash and sanitize_text_field
$nonce = isset($_GET['_wpnonce']) ? sanitize_text_field(wp_unslash($_GET['_wpnonce'])) : '';
if (empty($nonce) || !wp_verify_nonce($nonce, 'mxchat_delete_prompt_nonce')) {
wp_die('Nonce verification failed.');
}
// Check user permissions
if (!current_user_can('manage_options')) {
wp_die('You do not have sufficient permissions to delete prompts.');
}
// Sanitize and validate the 'id' parameter
$id = isset($_GET['id']) ? intval($_GET['id']) : 0;
if ($id <= 0) {
wp_die('Invalid prompt ID.');
}
global $wpdb;
$table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
// Clear relevant cache before deletion
$cache_key = 'prompt_' . $id;
wp_cache_delete($cache_key, 'mxchat_prompts');
// Delete the record using a prepared statement
$deleted = $wpdb->delete($table_name, array('id' => $id), array('%d'));
if ($deleted !== false) {
// Optionally, clear a general cache if you have one
wp_cache_delete('all_prompts', 'mxchat_prompts');
}
// Redirect to the prompts page with a success message
$redirect_url = add_query_arg(array(
'page' => 'mxchat-prompts',
'deleted' => 'true'
), admin_url('admin.php'));
wp_safe_redirect($redirect_url);
exit;
}
public function mxchat_create_admin_page() {
?>
wp_json_encode(array(
'model' => 'text-embedding-ada-002',
'input' => $text
)),
'headers' => array(
'Authorization' => 'Bearer ' . $api_key,
'Content-Type' => 'application/json'
),
));
if (is_wp_error($response)) {
return null;
}
$response_data = json_decode(wp_remote_retrieve_body($response), true);
return $response_data['data'][0]['embedding'] ?? null;
}
public function mxchat_delete_chat_history() {
if (!current_user_can('manage_options')) {
echo wp_json_encode(['error' => 'You do not have sufficient permissions.']);
wp_die();
}
check_ajax_referer('mxchat_delete_chat_history', 'security');
global $wpdb;
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
if (isset($_POST['delete_session_ids']) && is_array($_POST['delete_session_ids'])) {
foreach ($_POST['delete_session_ids'] as $session_id) {
$session_id_sanitized = sanitize_text_field($session_id);
// Clear relevant cache before deletion
$cache_key = 'chat_session_' . $session_id_sanitized;
wp_cache_delete($cache_key, 'mxchat_chat_sessions');
// Perform the deletion
$wpdb->delete($table_name, ['session_id' => $session_id_sanitized]);
}
// Optionally, clear a general cache if you have one
wp_cache_delete('all_chat_sessions', 'mxchat_chat_sessions');
echo wp_json_encode(['success' => 'Selected chat sessions have been deleted.']);
} else {
echo wp_json_encode(['error' => 'No chat sessions selected for deletion.']);
}
wp_die();
}
public function mxchat_fetch_chat_history() {
global $wpdb;
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
// Check if the current user has sufficient permissions
if (!current_user_can('manage_options')) {
echo esc_html__('You do not have sufficient permissions to view this page.', 'mxchat');
wp_die();
}
// Fetch chat transcripts from the database, ordered by timestamp
$chat_transcripts = $wpdb->get_results(
$wpdb->prepare("SELECT * FROM {$table_name} ORDER BY timestamp ASC")
);
// If no transcripts are available, display a message
if (empty($chat_transcripts)) {
echo esc_html__('No chat history available.', 'mxchat');
wp_die();
}
ob_start();
$current_session_id = '';
foreach ($chat_transcripts as $transcript) {
// Start a new session block if session ID changes
if ($current_session_id !== $transcript->session_id) {
if ($current_session_id !== '') {
echo ''; // Close the previous session block
}
$current_session_id = sanitize_text_field($transcript->session_id);
echo '
';
}
// Format the timestamp for display
$formatted_timestamp = date_i18n('F j, Y g:i a', strtotime($transcript->timestamp));
// Determine the role to display (user identifier or email for users, bot for the AI)
$role = $transcript->role;
if ($role === 'user') {
$role = !empty($transcript->user_email) ? sanitize_email($transcript->user_email) : sanitize_text_field($transcript->user_identifier);
}
// Output the chat message
echo '
 . '../images/pro-only-dark.png)
';
echo '