<?php
namespace app\admin\model;

use think\Model;

class AdminSysMenu extends Model
{
    /**
     * 获取菜单树形结构
     * @return array
     */
    public static function getMenuTree()
    {
        // 获取所有启用的菜单
        $menus = self::where('status', 1)
            ->order('type', 'asc')
            ->order('sort', 'desc')
            ->select()
            ->toArray();

        $menuTree = [];

        // 先处理所有父菜单
        foreach ($menus as $menu) {
            if ($menu['parent_id'] == 0) {
                $menuTree[$menu['smid']] = $menu;
                $menuTree[$menu['smid']]['children'] = [];
            }
        }

        // 再处理子菜单
        foreach ($menus as $menu) {
            if ($menu['parent_id'] != 0 && isset($menuTree[$menu['parent_id']])) {
                $menuTree[$menu['parent_id']]['children'][] = $menu;
            }
        }

        return array_values($menuTree);
    }
}