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// Add column headers
add_action('salesking_customers_custom_columns_header', function(){
    ?>
    <th class="nk-tb-col tb-col-md"><span class="sub-text"><?php esc_html_e('Last Order Date', 'salesking'); ?></span></th>
    <th class="nk-tb-col tb-col-md"><span class="sub-text"><?php esc_html_e('Customer Note', 'salesking'); ?></span></th>
    <?php
});

// Add column content
add_action('salesking_customers_custom_columns_content', function($customer){
    // Last Order Date
    $last_order = wc_get_customer_last_order($customer->get_id());
    $last_order_date = $last_order ? $last_order->get_date_created()->date('Y-m-d') : '-';
    
    // Customer Note
    $customer_note = get_user_meta(get_current_user_id(), 'sales_rep_customer_note_'.$customer->get_id(), true);

    ?>
    <td class="nk-tb-col tb-col-md" data-order="<?php echo esc_attr($last_order_date); ?>">
        <div>
            <span class="tb-amount"><?php echo esc_html($last_order_date); ?></span>
        </div>
    </td>
    <td class="nk-tb-col tb-col-md">
        <div>
            <textarea class="customer-note" data-customer-id="<?php echo esc_attr($customer->get_id()); ?>"><?php echo esc_textarea($customer_note); ?></textarea>
        </div>
    </td>
    <?php
}, 10, 1);

// Add scripts to the dashboard head
add_action('salesking_dashboard_head', function() {
    ?>
    <script type="text/javascript">
    jQuery(document).ready(function($) {
        $('.customer-note').on('change', function() {
            var customerId = $(this).data('customer-id');
            var note = $(this).val();
            var $textarea = $(this);
            
            $.ajax({
                url: '<?php echo admin_url('admin-ajax.php'); ?>',
                type: 'POST',
                data: {
                    action: 'save_customer_note',
                    nonce: '<?php echo wp_create_nonce('customer-note-nonce'); ?>',
                    customer_id: customerId,
                    note: note
                },
                success: function(response) {
                    if (response.success) {
                        $textarea.css('border-color', 'green');
                        setTimeout(function() {
                            $textarea.css('border-color', '');
                        }, 2000);
                    } else {
                        $textarea.css('border-color', 'red');
                        setTimeout(function() {
                            $textarea.css('border-color', '');
                        }, 2000);
                    }
                }
            });
        });
    });
    </script>
    <?php
});

// AJAX handler to save customer note
add_action('wp_ajax_save_customer_note', function() {
    check_ajax_referer('customer-note-nonce', 'nonce');
    
    $customer_id = isset($_POST['customer_id']) ? intval($_POST['customer_id']) : 0;
    $note = isset($_POST['note']) ? sanitize_textarea_field($_POST['note']) : '';
    
    $current_user_id = get_current_user_id();

    if ($customer_id) {
        update_user_meta($current_user_id, 'sales_rep_customer_note_'.$customer_id, $note);
        wp_send_json_success('Note saved successfully');
    } else {
        wp_send_json_error('Error saving note');
    }
});