<?php

namespace App\Cache\Redis\Admin;

use App\Cache\Redis\RedisCache;
use App\Constants\Admin\AuthCode;
use App\Model\AdminMenu;
use Hyperf\Di\Annotation\Inject;
use Psr\Container\ContainerExceptionInterface;
use Psr\Container\NotFoundExceptionInterface;
use RedisException;

class MenuCache
{
    /**
     * @var RedisCache $redis
     */
    #[Inject]
    protected RedisCache $redis;

    /**
     * @var AdminMenu
     */
    #[Inject]
    protected AdminMenu $adminMenuModel;

    /**
     * 菜单
     * @var string
     */
    protected string $menuKey;

    public function __construct()
    {
        $this->menuKey = AdminRedisKey::adminMenuList();
    }

    /**
     * @return array
     * @throws ContainerExceptionInterface
     * @throws NotFoundExceptionInterface
     * @throws RedisException
     */
    public function getMenu(): array
    {
        if ($this->redis->exists($this->menuKey,'system')) {
            return json_decode($this->redis->get($this->menuKey,'system'),true);
        }

        $allMenuList = $this->adminMenuModel->getAllMenu();

        $data = $this->getDbMenu($allMenuList);

        $this->redis->set($this->menuKey,json_encode($data));

        return $data;
    }

    /**
     * @return void
     * @throws ContainerExceptionInterface
     * @throws NotFoundExceptionInterface
     * @throws RedisException
     */
    public function delMenu(): void
    {
        $this->redis->delete($this->menuKey);
    }

    /**
     * 递归生成合适的数据
     * @param array $allMenuList
     * @param int $parentId
     * @return array
     */
    private function getDbMenu(array $allMenuList, int $parentId = 0): array
    {
        $menuList = [];
        foreach ($allMenuList as $menu) {
            if ($menu['parent_id'] == $parentId) {
                $children = $this->getDbMenu($allMenuList, (int)$menu['id']);
                if (!empty($children)) {
                    //获取第一个 type 如何是菜单
                    if ($children[0]['type'] == AuthCode::MENU_TYPE_LIST) {
                        $menu['children'] = $children;
                    } else {
                        foreach ($children as $child) {
                            $menu['permissionList'][] = [
                                'id' => $child['id'],
                                'label' => $child['title'],
                                'value' => $child['value'],
                            ];
                        }
                    }
                }
                $menuList[] = $menu;
            }
        }
        return $menuList;
    }
}