<?php


namespace App\Servers;

use App\Models\Menu;
use App\Models\Role;


/**
 * Redis数据缓存类
 */
class MenuServer
{
    /**
     * 单列对象
     * @var
     */
    static $server;
    /**
     * 缓存key
     * @var string
     */
    private $key_name = 'menu_list';
    /**
     * 缓存时间
     * @var string
     */
    private $cache_time = '10';

    private function __construct()
    {

    }

    /**
     * 创建对象
     * @return MenuServer
     */
    static function creatServer()
    {
        if (empty(self::$server)) {
            self::$server = new MenuServer();
        }
        return self::$server;
    }

    /**
     * 获取后台菜单信息
     * @param $roles_id
     * @return array|mixed
     */
    function getMenu($roles_id)
    {
        $key_name = $this->key_name . '_' . $roles_id;
        $list = RedisDataServer::creatServer()->getData($key_name, 'json');
        if (empty($list)) {
            if ($roles_id > 0) {
                //获取对应角色授权ID
                $permission_ids = Role::where('id', $roles_id)->value('permission_ids');
                if (empty($permission_ids)) $permission_ids = [0];
                else $permission_ids = explode(',', $permission_ids);
            } else {
                $permission_ids = [];
            }
            $list = Menu::where('p_id', 0)->where('is_del',0)->where('version',1)->where(function ($query) use ($permission_ids) {
                if ($permission_ids) {
                    $p_ids= Menu::whereIn('id', $permission_ids)->where('level',1)->pluck('p_id')->toArray();
                    if(empty($p_ids))$p_ids=[0];
                    $query->whereIn('id', $p_ids);
                }
            })->select(['id', 'menu_name', 'label_name'])->orderBy('sort','desc')->get()->toArray();
            foreach ($list as &$item) {
                $item['items'] = Menu::where('p_id', $item['id'])->where('is_del',0)->where('version',1)->where(function ($query) use ($permission_ids) {
                    if ($permission_ids) $query->whereIn('id', $permission_ids);
                })->select(['id', 'menu_name', 'url_name'])->orderBy('sort','desc')->get()->toArray();
            }
            RedisDataServer::creatServer()->setData($key_name, $list, 'json', $this->cache_time);
        }
        return $list;
    }

    /**
     * 根据角色传递菜单信息
     * @param $roles_id
     */
    function sendMenu($roles_id = '')
    {
        if (!request()->ajax()) {
            view()->composer('layouts.admin.menu', function ($view) use ($roles_id) {
                $menu_list = self::creatServer()->getMenu($roles_id);
                $view->with('menu_list', $menu_list);
            });
        }

    }


    function getPermissionsMenu($r_p)
    {
        //当前角色已授权信息
        if (is_string($r_p)) {
            $r_p = explode(',', $r_p);
        }
        $permission=[];
        //权限信息
        $one_p = Menu::where('p_id', 0)->select(['id', 'menu_name as label'])->get();
        foreach ($one_p as $key => $item) {
            $item->{'id'}.='';
            $two_list = Menu::where('p_id', $item['id'])->select(['id', 'menu_name as label'])->get();
            foreach ($two_list as $t_v) {
                $t_v->{'id'}.='';
                $three_list= Menu::where('p_id', $t_v['id'])->select(['id', 'menu_name as label'])->get();
                foreach ($three_list as $three_v){
                    $three_v->{'id'}.='';
                }
                $t_v->{'children'}=$three_list->toArray();
            }
            $item->{'children'}=$two_list->toArray();
            $permission[]=[$item->toArray()];
        }
        return $permission;

    }

    /**
     * 获取系统后台角色对应权限节点
     * @param $role_id
     * @return false|mixed|string[]
     */
    function getRole($role_id){
        //获取该角色的权限节点
        $key_name = 'role_ids_' . $role_id;
        $url_ids = RedisDataServer::creatServer()->getData($key_name,'json');

        if(empty($url_ids)){
            $permission_ids = Role::where('id', $role_id)->value('permission_ids');
            $url_ids = explode(',', $permission_ids);
            RedisDataServer::creatServer()->setData($key_name,$url_ids,'json',7200);
        }
        if (empty($url_ids)) {
            return false;
        }
        return $url_ids;
    }
}