<?php

namespace app\channel\service;
use app\core\Service;
use think\admin\extend\DataExtend;
use think\admin\service\AdminService;
use think\admin\service\NodeService;

class ProductCategory extends Service
{
    protected $table='product_category';
    public function getTrees($pid=0,$level=0,$cate_array=[]){
        if(empty($cate_array)) {
            $cate_array=$this->db()->where('id|pid','=',$pid)->where('status','=',1)->select()->toArray();
        }
        static $list = [];
        foreach ($cate_array as $key => $value){
            //第一次遍历,找到父节点为根节点的节点 也就是pid=0的节点
            if ($value['pid'] == $pid){
                //父节点为根节点的节点,级别为0，也就是第一级
                $value['level'] = $level;
                //把数组放到list中
                $list[] = $value;
                //把这个节点从数组中移除,减少后续递归消耗
                unset($cate_array[$key]);
                //开始递归,查找父ID为该节点ID的节点,级别则为原级别+1
                $this->getTrees($value['id'], $level+1,$cate_array);
            }
        }
        return $list;
    }
    /**
     * 菜单分组语言包
     * @param string $name
     * @return string
     */
    private static function lang(string $name): string
    {
        $lang = lang("menus_{$name}");
        if (stripos($lang, 'menus_') === 0) {
            return lang(substr($lang, 6));
        } else {
            return $lang;
        }
    }

    /**
     * 获取可选菜单节点
     * @param boolean $force 强制刷新
     * @return array
     */
    public static function getList(bool $force = false): array
    {
        $nodes = sysvar('think-library-menus') ?: [];
        if (empty($force) && count($nodes) > 0) return $nodes; else $nodes = [];
        foreach (NodeService::getMethods($force) as $node => $method) {
            if ($method['ismenu']) $nodes[] = ['node' => $node, 'title' => self::lang($method['title'])];
        }
        return sysvar('think-library-menus', $nodes);
    }

    /**
     * 获取系统菜单树数据
     * @return array
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public  function getTree(): array
    {
        $menus = $this->db()->where(['status' => 1])->order('sort desc,id asc')->select()->toArray();
        if (function_exists('admin_menu_filter')) $menus = call_user_func('admin_menu_filter', $menus);
        foreach ($menus as &$menu) $menu['title'] = self::lang($menu['title']);
        return static::filter(DataExtend::arr2tree($menus));
    }

    /**
     * 后台主菜单权限过滤
     * @param array $menus 当前菜单列表
     * @return array
     */
    private static function filter(array $menus): array
    {
        foreach ($menus as $key => &$menu) {
            if (!empty($menu['sub'])) {
                $menu['sub'] = static::filter($menu['sub']);
            }
            if (!empty($menu['sub'])) {
                $menu['url'] = '#';
            } elseif (empty($menu['url']) || $menu['url'] === '#' || !(empty($menu['node']) || AdminService::check($menu['node']))) {
                unset($menus[$key]);
            } elseif (preg_match('#^(https?:)?//\w+#i', $menu['url'])) {
                if ($menu['params']) $menu['url'] .= (strpos($menu['url'], '?') === false ? '?' : '&') . $menu['params'];
            } else {
                $node = join('/', array_slice(str2arr($menu['url'], '/'), 0, 3));
                $menu['url'] = admuri($menu['url']) . ($menu['params'] ? '?' . $menu['params'] : '');
                if (!AdminService::check($node)) unset($menus[$key]);
            }
        }
        return $menus;
    }
}