functions.php

<?php
add_action('wp_head', function () {
    //Close PHP tags
    ?>
    <div id="preloader"
         style="display: block; position: fixed; left: 0; top: 0; right: 0; bottom: 0;background: #ffffff; z-index: 100000;">
        <script>

        </script>
        <style>#preloader {
                transition: .3s background;
            }

            #preloader.is-active {
                background: rgba(255, 255, 255, 0) !important;
            }
        </style>
    </div>
    <?php //Open PHP tags
}, 10, 2);
add_action('wp_enqueue_scripts', function () {
    wp_enqueue_style('child-variable-style', get_stylesheet_directory_uri() . '/css/variables.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-fonts-style', get_stylesheet_directory_uri() . '/css/fonts.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-reset-style', get_stylesheet_directory_uri() . '/css/reset.css', ['flatsome-main'], '1.0', 'all');

    wp_enqueue_style('child-acc-item-style', get_stylesheet_directory_uri() . '/css/widgets/account-item.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-bg-style', get_stylesheet_directory_uri() . '/css/widgets/buttons.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-buttons-style', get_stylesheet_directory_uri() . '/css/widgets/bg.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-cart-style', get_stylesheet_directory_uri() . '/css/widgets/cart.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-controls-style', get_stylesheet_directory_uri() . '/css/widgets/controls.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-chckt-brdcrmbs-style', get_stylesheet_directory_uri() . '/css/widgets/checkout-breadcrumbs.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-mini-cart-style', get_stylesheet_directory_uri() . '/css/widgets/mini-cart.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-forms-style', get_stylesheet_directory_uri() . '/css/widgets/forms.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-lightbox-style', get_stylesheet_directory_uri() . '/css/widgets/lightbox.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-mfp-style', get_stylesheet_directory_uri() . '/css/widgets/mfp.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-offices-style', get_stylesheet_directory_uri() . '/css/widgets/offices.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-reviews-style', get_stylesheet_directory_uri() . '/css/widgets/reviews.css', ['flatsome-main','flatsome-shop'], '1.0', 'all');
    wp_enqueue_style('child-sidebar-style', get_stylesheet_directory_uri() . '/css/widgets/sidebar.css', ['flatsome-main'], '1.0', 'all');

    wp_enqueue_style('child-header-style', get_stylesheet_directory_uri() . '/css/header.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-footer-style', get_stylesheet_directory_uri() . '/css/footer.css', ['flatsome-main'], '1.0', 'all');

    wp_enqueue_style('child-style', get_stylesheet_directory_uri() . '/css/style.css', ['flatsome-main'], '1.0', 'all');

    wp_enqueue_style('slick-carousel', get_stylesheet_directory_uri() . '/css/vendor/slick.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('slick-carousel-theme', get_stylesheet_directory_uri() . '/css/vendor/slick-theme.css', ['flatsome-main'], '1.0', 'all');

    wp_enqueue_style('child-about-style', get_stylesheet_directory_uri() . '/css/pages/about.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-cart-page-style', get_stylesheet_directory_uri() . '/css/pages/cart.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-chckt-page-style', get_stylesheet_directory_uri() . '/css/pages/checkout.css', ['flatsome-main', 'flatsome-shop'], '1.0', 'all');
    wp_enqueue_style('child-cntcts-page-style', get_stylesheet_directory_uri() . '/css/pages/contacts.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-dlvr-page-style', get_stylesheet_directory_uri() . '/css/pages/delivery.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-mainpage-style', get_stylesheet_directory_uri() . '/css/pages/mainpage.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-or-compl-style', get_stylesheet_directory_uri() . '/css/pages/order-complete.css', ['flatsome-main'], '1.0', 'all');
    wp_enqueue_style('child-shop-style', get_stylesheet_directory_uri() . '/css/pages/shop.css', ['flatsome-main'], '1.0', 'all');

    wp_enqueue_style('child-adaptive-style', get_stylesheet_directory_uri() . '/css/adaptive.css', ['flatsome-main'], '1.0', 'all');

    wp_enqueue_script('slick-carousel', get_stylesheet_directory_uri() . '/js/slick.min.js', [], 'false', 'all');
    wp_enqueue_script('child-script', get_stylesheet_directory_uri() . '/js/script.js', [], 'false', 'all');
    wp_enqueue_script('child-product-card-script', get_stylesheet_directory_uri() . '/js/product-card.js', [], 'false', 'all');
});
function prefix_add_footer_styles()
{
    wp_enqueue_style('child-product-style', get_stylesheet_directory_uri() . '/css/widgets/product.css', ['flatsome-main'], '1.0', 'all');
}

;
add_action('get_footer', 'prefix_add_footer_styles');
/******************
 * Single product page
 ******************/

/**
 *  Remove additional information tab
 **/
add_filter('woocommerce_product_tabs', function ($tabs) {
    unset($tabs['description']);
    unset($tabs['additional_information']);
    return $tabs;
}, 100, 1);

/**
 *  Remove share tabs
 **/
remove_action('woocommerce_single_product_summary', 'woocommerce_template_single_sharing', 50);

/**
 *  Remove short description
 **/
remove_action('woocommerce_single_product_summary', 'woocommerce_template_single_excerpt', 20);

function woocommerce_template_single_excerpt()
{
    return;
}

/**
 *  Add "additional information" after add to cart
 **/
add_action('woocommerce_single_product_summary', function () {
    global $product;
    wc_display_product_attributes($product);

    if (strlen($product->description) > 20 || strlen($product->short_description) > 20)
        echo "<p class='product-description-title'>Description</p>
            <div class='description-container'> 
                <div class='term-description product-description'>" . (strlen($product->description) > 20 ? $product->description : $product->short_description) . "</div>
            </div>";

    woocommerce_template_single_sharing();
}, 135);

add_action('woocommerce_before_single_product', function () {
    ?>
    <h1 class="product-title product_title entry-title">
        <?php the_title(); ?>
        <?php wc_get_template('loop/sale-flash.php'); ?>
    </h1> <?php
}, 135);


/*
 * Shop | category page
 */
add_action('init', function () {

    add_action('woocommerce_archive_description', function () {
        /**
         *  Show title on category | shop page
         **/
        $title = strtolower(trim(wp_title('', false)));
        echo $title == 'products' ? '<h1>Shop</h1>' : '<h1>' . single_term_title('', false) . '</h1>';

        if (is_product_category()) {

            /**
             * description
             **/
            remove_action('woocommerce_archive_description', 'woocommerce_taxonomy_archive_description', 10);

            $term = get_queried_object();
            $term = $term->term_id ?? 0;
            $description = get_term_field('description', $term);
            if (strlen($description) > 20) echo "<div class='description-container'> <div class='term-description product-description'>" . $description . "</div>
                  </div>";

            /**
             * subcategories list
             **/

            $taxonomy = 'product_cat';
            $parent_terms = get_ancestors(get_queried_object_id(), $taxonomy);
            if (sizeof($parent_terms) > 0) {
                $term_id = sizeof($parent_terms) == 1 ? get_queried_object_id() : $parent_terms[0];
                // Get subcategories of the current category
                $terms = get_terms([
                    'taxonomy' => $taxonomy,
                    'hide_empty' => false,
                    'parent' => $term_id
                ]);
                echo '<ul class="subcategories-list">';
                // Loop through product subcategories WP_Term Objects
                foreach ($terms as $term) {
                    $active = $term->term_id == get_queried_object_id() ? 'is-active' : '';
                    $term_link = get_term_link($term, $taxonomy);
                    echo '<li class="' . $term->slug . '"><a href="' . $term_link . '" class="' . $active . '">' . $term->name . '</a></li>';
                }
                echo '</ul>';
            } else {
                $children_terms = get_terms([
                    'taxonomy' => $taxonomy,
                    'hide_empty' => false,
                    'parent' => get_queried_object_id()
                ]);
                if (!empty($children_terms)) {
                    echo '<ul class="subcategories-list">';
                    // Loop through product subcategories WP_Term Objects
                    foreach ($children_terms as $term) {
                        $active = $term->term_id == get_queried_object_id() ? 'is-active' : '';
                        $term_link = get_term_link($term, $taxonomy);
                        echo '<li class="' . $term->slug . '"><a href="' . $term_link . '" class="' . $active . '">' . $term->name . '</a></li>';
                    }
                    echo '</ul>';

                }
            }
        }

    }, 2);

    /**
     * hide shop title
     **/
    add_filter('woocommerce_page_title', function () {
        return "";
    });
    /*
    // Remove result count.
    remove_action( 'flatsome_category_title_alt', 'woocommerce_result_count', 20 );
    // Remove ordering dropdown.
    remove_action( 'flatsome_category_title_alt', 'woocommerce_catalog_ordering', 30 );
    */
});


/**
 *  The jQuery code that will handle the event getting the required  product data
 **/
add_action('wp_footer', 'added_to_cart_js_event');
function added_to_cart_js_event()
{
    ?>
    <script type="text/javascript">
        (function ($) {
            $(document.body).on('added_to_cart', function (event, fragments, cart_hash, button) {
                button.attr('data-total', parseInt(button.data('total')) + 1);
                addedToCartNotification();
            });
        })(jQuery);
    </script>
    <?php
}

/**
 *  View cart button
 */
function woocommerce_widget_shopping_cart_button_view_cart()
{
    echo '<a href="' . esc_url(wc_get_cart_url()) . '" class="button wc-forward btn-outline">' . esc_html__('View cart', 'woocommerce') . '</a>';
}

/**
 *  Checkout button
 */
function woocommerce_widget_shopping_cart_proceed_to_checkout()
{
    echo '<a href="' . esc_url(wc_get_checkout_url()) . '" class="button checkout wc-forward btn-filled">' . esc_html__('Checkout', 'woocommerce') . '</a>';
}


/**
 * Change text strings
 *
 * @link http://codex.wordpress.org/Plugin_API/Filter_Reference/gettext
 */
function my_text_strings($translated_text, $text, $domain)
{
    switch (strtolower($translated_text)) {
        case 'cart' :
            $translated_text = __('Shopping Cart', 'woocommerce');
            break;
        case 'billing details' :
            $translated_text = __('Shipping details', 'woocommerce');
            break;
    }
    return $translated_text;
}

add_filter('gettext', 'my_text_strings', 20, 3);


/**
 * Added to cart from category
 *
 * @link http://codex.wordpress.org/Plugin_API/Filter_Reference/gettext
 */
add_filter('woocommerce_loop_add_to_cart_link', function ($html, $product) {
    if ($product && $product->is_type('simple') && $product->is_purchasable() && $product->is_in_stock() && !$product->is_sold_individually()) {
        $product_id = $product->get_id();
        $quantity = 0;
        foreach (WC()->cart->get_cart() as $cart_item) {
            if ($cart_item['product_id'] == $product_id) $quantity = $cart_item['quantity'];
        }

        $html = '<div class="add-to-cart-button"><a href="?add-to-cart=' . $product_id . '"  data-total="' . $quantity . '" data-quantity="1" class="primary is-small mb-0 button product_type_simple add_to_cart_button ajax_add_to_cart is-outline" data-product_id="' . $product_id . '" data-product_sku="" aria-label="' . $product->get_title() . '" rel="nofollow">Add to cart</a></div>';
    }
    return $html;
}, 10, 2);


/**
 * Manage checkout fields
 *
 */
add_filter('woocommerce_checkout_fields', function ($fields) {
    $fields['billing']['billing_first_name']['placeholder'] = 'First name*';
    $fields['billing']['billing_last_name']['placeholder'] = 'Last name*';
    $fields['billing']['billing_company']['placeholder'] = 'Company name (optional)';
    $fields['billing']['billing_address_2']['placeholder'] = 'Apartment';
    $fields['billing']['billing_city']['placeholder'] = 'Town / City*';
    $fields['billing']['billing_state']['placeholder'] = 'State / County (optional)';
    $fields['billing']['billing_phone']['placeholder'] = 'Phone*';
    $fields['billing']['billing_email']['placeholder'] = 'Email address*';
    $fields['order']['order_comments']['placeholder'] = 'Order notes (optional)';
    $fields['billing']['billing_postcode']['placeholder'] = 'Postcode / ZIP';
    $fields['billing']['billing_first_name']['label'] = $fields['billing']['billing_last_name']['label'] = $fields['billing']['billing_company']['label'] = $fields['billing']['billing_city']['label'] = $fields['billing']['billing_state']['label'] = $fields['billing']['billing_phone']['label'] = $fields['billing']['billing_email']['label'] = $fields['order']['order_comments']['label'] = $fields['billing']['billing_postcode']['label'] = '';

    return $fields;
});

function exclude_products_from_child_cats($wp_query)
{
    if (!is_admin() && $wp_query->is_main_query()) {
        if (isset($wp_query->query_vars['product_cat'])) {
            $tax_query = array(
                array(
                    'taxonomy' => 'product_cat',
                    'field' => 'slug',
                    'terms' => $wp_query->query_vars['product_cat'],
                    'include_children' => false
                )
            );
            $wp_query->set('tax_query', $tax_query);
        }
    }
}

add_filter('pre_get_posts', 'exclude_products_from_child_cats');


/**
 * Shop type in category
 */
//Product Cat creation page
function text_domain_taxonomy_add_new_meta_field()
{
    ?>
    <div class="form-field">
        <label for="term_meta[shop_category]"><?php _e('Category type', 'text_domain'); ?></label>
        <select name="term_meta[shop_category]" id="term_meta[shop_category]">
            <option value="">-- None --</option>
            <option class="level-0" value="1">Shop</option>
            <option class="level-0" value="2">Catering</option>
        </select>
        <p class="description"><?php _e('Shop or catering', 'text_domain'); ?></p>
    </div>
    <?php
}

add_action('product_cat_add_form_fields', 'text_domain_taxonomy_add_new_meta_field', 10, 2);

//Product Cat Edit page
function text_domain_taxonomy_edit_meta_field($term)
{

    //getting term ID
    $term_id = $term->term_id;

    // retrieve the existing value(s) for this meta field. This returns an array
    $term_meta = get_option("taxonomy_" . $term_id);
    ?>
    <tr class="form-field">
        <th scope="row" valign="top"><label
                    for="term_meta[shop_category]"><?php _e('Category type', 'text_domain'); ?></label></th>
        <td>
            <?php $shop_category = esc_attr($term_meta['shop_category']) ?? ''; ?>
            <select name="term_meta[shop_category]" id="term_meta[shop_category]">
                <option value="">-- None --</option>
                <option <?php if ($shop_category == 1) echo "selected='selected'"; ?> value="1">Shop</option>
                <option <?php if ($shop_category == 2) echo "selected='selected'"; ?> value="2">Catering</option>
            </select>
            <p class="description"><?php _e('Shop or catering', 'text_domain'); ?></p>
        </td>
    </tr>
    <?php
}

add_action('product_cat_edit_form_fields', 'text_domain_taxonomy_edit_meta_field', 10, 2);

// Save extra taxonomy fields callback function.
function save_taxonomy_custom_meta($term_id)
{
    if (isset($_POST['term_meta'])) {
        $term_meta = get_option("taxonomy_" . $term_id);
        $cat_keys = array_keys($_POST['term_meta']);
        foreach ($cat_keys as $key) {
            if (isset($_POST['term_meta'][$key])) {
                $term_meta[$key] = $_POST['term_meta'][$key];
            }
        }
        // Save the option array.
        update_option("taxonomy_" . $term_id, $term_meta);
    }
}

add_action('edited_product_cat', 'save_taxonomy_custom_meta', 10, 2);
add_action('create_product_cat', 'save_taxonomy_custom_meta', 10, 2);

/**
 * change currency symbol to AED
 */

add_filter('woocommerce_currency_symbol', 'wc_change_uae_currency_symbol', 10, 2);

function wc_change_uae_currency_symbol($currency_symbol, $currency)
{
    switch ($currency) {
        case 'AED':
            $currency_symbol = 'AED';
            break;
    }

    return $currency_symbol;
}


/**
 * Item quantity in cart
 */
function get_item_qty($product)
{
    foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
        // for variable products (product varations)
        $product_id = $product->id;
        if ($product_id == 0 || empty($product_id))
            $product_id = $product->get_id();
        if ($product_id == $cart_item['product_id']) {
            return [ $cart_item['quantity'], $cart_item_key ];
            // break;
        }
    }
    return [false, false];
}

require_once (__DIR__ . '/functions/ajax.php');