/**
 * 添加用户中心客服系统标签页
 */
add_filter('user_ctnter_main_tabs_array', 'add_user_center_tab');

function add_user_center_tab($tabs_array) {
    if (!is_user_logged_in()) {
        return $tabs_array;
    }
    
    $user_id = get_current_user_id();
    $is_agent = is_user_agent($user_id);
    
    $tabs_array['ssupport'] = array(
        'title'           => $is_agent ? '客服工作台' : '在线客服',
        'nav_attr'        => 'drawer-title="' . ($is_agent ? '客服工作台' : '在线客服') . '"',
        'loader'          => '<div class="text-center p30"><i class="fa fa-spinner fa-spin fa-2x"></i><p class="mt10">加载中...</p></div>',
        'content_func'    => 'zib_main_user_tab_content_ssupport',
    );
    return $tabs_array;
}

/**
 * 添加用户中心侧边栏按钮
 */
add_filter('zib_user_center_page_sidebar_button_3_args', 'add_user_center_button');

function add_user_center_button($buttons) {
    if (!is_user_logged_in()) {
        return $buttons;
    }
    
    $user_id = get_current_user_id();
    $is_agent = is_user_agent($user_id);
    
    if ($is_agent) {
        // 客服工作台按钮
        $waiting_count = get_waiting_chats_count();
        $badge = $waiting_count > 0 ? '<span class="ssupport-unread-badge">' . $waiting_count . '</span>' : '';
        
        $buttons[] = array(
            'html' => '',
            'icon' => '<svg viewBox="0 0 24 24">...</svg>',
            'name' => '客服工作台' . $badge,
            'tab'  => 'ssupport',
        );
    } else {
        // 用户客服按钮
        $unread_count = get_user_unread_total($user_id);
        $badge = $unread_count > 0 ? '<span class="ssupport-unread-badge">' . $unread_count . '</span>' : '';
        
        $buttons[] = array(
            'html' => '',
            'icon' => '<svg t="1764818929823">...</svg>',
            'name' => '在线客服' . $badge,
            'tab'  => 'ssupport',
        );
    }
    
    return $buttons;
}

/**
 * 用户中心标签页内容渲染
 */
function zib_main_user_tab_content_ssupport() {
    if (!is_user_logged_in()) {
        return '<div class="zib-widget"><div class="text-center c-red">请先登录</div></div>';
    }
    
    $user_id = get_current_user_id();
    $is_agent = is_user_agent($user_id);
    
    if ($is_agent) {
        return render_agent_dashboard();
    } else {
        return render_user_dashboard();
    }
}