<?php

if (!defined('ABSPATH')) {
    exit;
}

class MxChat_WooCommerce {

    public static function init() {
        add_action('wp_ajax_mxchat_fetch_user_orders', array(__CLASS__, 'mxchat_fetch_user_orders'));
        add_action('wp_ajax_nopriv_mxchat_fetch_user_orders', array(__CLASS__, 'mxchat_fetch_user_orders'));
        
        add_action('wp_ajax_mxchat_add_to_cart', array(__CLASS__, 'mxchat_add_to_cart'));
add_action('wp_ajax_nopriv_mxchat_add_to_cart', array(__CLASS__, 'mxchat_add_to_cart'));

    }
    
    // New function to handle add to cart requests
public static function mxchat_add_to_cart() {
    // Validate nonce
    if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_nonce')) {
        wp_send_json_error('Invalid nonce.');
        wp_die();
    }

    $product_id = isset($_POST['product_id']) ? intval($_POST['product_id']) : 0;
    if (!$product_id) {
        wp_send_json_error('Invalid product ID.');
        wp_die();
    }

    // Add to WooCommerce cart
    $added = WC()->cart->add_to_cart($product_id);
    if ($added) {
        $product = wc_get_product($product_id);
        wp_send_json_success(['message' => "The product '{$product->get_name()}' has been added to your cart."]);
    } else {
        wp_send_json_error('Error adding product to cart.');
    }
    wp_die();
}


// Function to fetch the user's order details with optional filters
public static function mxchat_fetch_user_orders_details($type = 'all') {
    // Check if the user is logged in
    if (!is_user_logged_in()) {
        return []; // Return an empty array if the user is not logged in
    }

    // Fetch the logged-in user ID
    $user_id = get_current_user_id();

    // Define query arguments based on the requested type
    $args = array(
        'customer_id' => $user_id,
        'limit'       => ($type === 'last') ? 1 : -1, // Fetch only the last order if specified
        'orderby'     => 'date',
        'order'       => 'DESC',
    );

    // Retrieve orders based on the query
    $orders = wc_get_orders($args);
    if (empty($orders)) {
        return []; // Return an empty array if no orders are found
    }

    // Prepare an array of order details
    $order_details = [];
    foreach ($orders as $order) {
        $items = array_map(function ($item) {
            return $item->get_name();
        }, $order->get_items());

        $order_details[] = array(
            'order_id' => $order->get_id(),
            'date'     => $order->get_date_created()->date('F j, Y'),
            'status'   => wc_get_order_status_name($order->get_status()),
            'total'    => wc_price($order->get_total()),
            'items'    => $items,
        );

        // If only the last order is needed, break after the first iteration
        if ($type === 'last') {
            break;
        }
    }

    return $order_details; // Return the structured order details
}


    // Check if there are items in the cart
    public static function cart_has_items() {
        return WC()->cart && WC()->cart->get_cart_contents_count() > 0;
    }

public static function mxchat_extract_product_id_from_message($message) {
    // Ensure WooCommerce functions are available
    if (!function_exists('wc_get_products')) {
        error_log("WooCommerce is not active or not available.");
        return null; // Exit if WooCommerce is not active
    }

    // Normalize the message
    $message = sanitize_text_field(strtolower($message));

    // Add debug log for the incoming message
    error_log("Product extraction message: " . $message);

    // Split the message into individual words to search more effectively
    $search_terms = explode(' ', $message);

    // Log the search terms
    error_log("Search terms: " . implode(', ', $search_terms));

    // Search for the product in WooCommerce catalog by title, slug, and SKU
    $args = array(
        'status' => 'publish',
        'limit'  => 5, // Retrieve multiple products to better match
        'return' => 'objects',
    );

    $products = wc_get_products($args);

    // Log how many products were fetched
    error_log("Total products found: " . count($products));

    foreach ($products as $product) {
        // Check if the product title, slug, or SKU matches any of the search terms
        $product_name = strtolower($product->get_name());
        $product_slug = strtolower($product->get_slug());
        $product_sku = strtolower($product->get_sku());

        foreach ($search_terms as $term) {
            if (stripos($product_name, $term) !== false || stripos($product_slug, $term) !== false || stripos($product_sku, $term) !== false) {
                // Log which product was matched
                error_log("Matched product: " . $product_name . " (ID: " . $product->get_id() . ")");
                return $product->get_id(); // Return the first matching product ID
            }
        }
    }

    // If no product matches, log the failure
    error_log("No product matched for message: " . $message);

    return null;
}


    // Store the product ID in session when discussed
    public static function store_last_discussed_product($product_id) {
        set_transient('mxchat_last_product', $product_id, 12 * HOUR_IN_SECONDS);
    }

    // Retrieve the last discussed product ID
    public static function get_last_discussed_product() {
        return get_transient('mxchat_last_product');
    }

}

MxChat_WooCommerce::init();