<?php
namespace app\admin\controller;

use think\Controller;
use think\Request;
use app\admin\model\SysMenu as SysMenuModel;
use app\admin\model\SysRole as SysRoleModel;

class Base extends Controller
{
    protected $uid;
    protected $username;
    protected $role_id;
    private $sysMenuModel;

    public function __construct(Request $request = null)
    {
        parent::__construct($request);

        //判断是否登陆
        if (!session('uid') && !session('username') ) {
            $this->error('您还没有登录, 请登录', '/admin/login');
        }

        $this->sysMenuModel = new SysMenuModel();

        // 登录用户信息
        $this->uid = session('uid');
        $this->username = session('username');
        $this->role_id = session('role_id');
        
        // //权限检查
        if (!$this->checkAuthor($this->role_id)) {
            $this->error('你无权限操作');
        }
        
        //记录日志
        $this->addLog();

        //菜单数据
        $data_menu = obj_tree($this->getMenu($this->role_id));
        //当前活动菜单父id
        $controller = $request->controller();       
        $menu_url = strtolower('admin/'.preg_replace('/(?<=[a-z])([A-Z])/', '_$1', $controller)).'/index';
   
        $active_pid =  $this->sysMenuModel->where('url', $menu_url)->value('pid');
        // var_dump($active_pid);
        // exit;
        //当前控制器及方法(转小写)
        $controller = strtolower($controller);
        $action = strtolower($request->action());

        // 模板输出
        $this->assign('data_menu', $data_menu);
        $this->assign('active_pid', $active_pid);
        $this->assign('controller', $controller);
        $this->assign('action', $action);
    }

    /**
     * 目录获取
     */
    private function getMenu($rid)
    {
        if ($rid === 1) {
            $data = $this->sysMenuModel
                ->where('type!=2')
                ->field('id, pid, name, url, type, icon')
                ->select();
        } else {
            $sysRoleModel = new SysRoleModel();
            $permission_ids = $sysRoleModel->where('id', $rid)->value('permissions');
            $data = $this->sysMenuModel
                ->where('type!=2')
                ->where('id', 'IN', $permission_ids)
                ->field('id, pid, name, url, icon')
                ->select();
        }

        return $data;
    }

    /**
     * 权限检查
     */
    private function checkAuthor($rid)
    {
        if (!$rid) {
            return false;
        }

        if ($rid==1) {
            return true;
        }

        $c = strtolower(request()->controller());
        $a = strtolower(request()->action());

        if (preg_match('/^public_/', $a)) {
            return true;
        }

        if ($c == 'index' && $a == 'index') {
            return true;
        }

        $permission_ids = $this->getMenu($rid);
        $permissions = $this->sysMenuModel->where('id', 'IN', $permission_ids)->field('id, pid, name, url')->select();
        // dump($permissions);
        foreach ($permissions as $v) {
            if($v->url=='admin/'.$c.'/'.$a) {
                return true;
            }
        }
        return false;
    }

    /**
     * 记录日志
     */
    private function addLog()
    {
        $data = array();
        $data['querystring'] = request()->query()?'?'.request()->query():'';
        $data['m'] = request()->module();
        $data['c'] = request()->controller();
        $data['a'] = request()->action();
        $data['method'] = request()->method();
        $data['userid'] = $this->uid;
        $data['username'] = $this->username;
        $data['ip'] = request()->ip();
        $data['time'] = time();
        $arr = [];
        // $logLevel = 0;
        $logLevel = 1;
        // $logLevel = 2;
        switch ($logLevel) {
            case 2:
                $arr = array_merge($arr, ['SysUser/index','SysRole/index', 'SysMenu/index']);
            case 1:
                $arr = array_merge($arr, ['Category/index','Article/index', 'FileManager/index']);    
            default:
                $arr = array_merge($arr, ['Index/index','SysLog/index','SysSet/index']);
                break;
        }
        // dump($arr);
        // dump(!in_array($data['c'].'/'.$data['a'], $arr));
        // exit;
        if (!in_array($data['c'].'/'.$data['a'], $arr)) {
            db('sys_log')->insert($data);
        }
    }
}