<?php

namespace app\admin\controller\general;

use app\admin\model\AuthGroup;
use app\admin\model\Student;
use app\common\controller\Backend;
use app\common\model\Area;
use think\Db;

/**
 * 编号管理
 *
 * @icon fa fa-circle-o
 */
class Identifier extends Backend
{

    /**
     * Identifier模型对象
     * @var \app\admin\model\Identifier
     */
    protected $model = null;
    //无需要权限判断的方法
    protected $noNeedRight = ['create_id'];

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\Identifier;
        $this->view->assign("statusList", $this->model->getStatusList());
    }


    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */


    /**
     * 查看
     */
    public function index()
    {
        //当前是否为关联查询
        $this->relationSearch = true;
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();

            $wheres = [];
            if(!$this->auth->isSuperAdmin()){
                $groupIds = $this->auth->getGroupIds();
                $wheres = ['group_id'=>['in',$groupIds]];
            }
            $list = $this->model
                    ->with(['groups'])
                    ->where($where)
                    ->where($wheres)
                    ->order($sort, $order)
                    ->paginate($limit);

            foreach ($list as $row) {
                
                $row->getRelation('groups')->visible(['name']);
            }

            $result = array("total" => $list->total(), "rows" => $list->items());

            return json($result);
        }
        $this->assignconfig("isSuperAdmin", $this->auth->isSuperAdmin());
        return $this->view->fetch();
    }

    /**
     * 添加
     *
     * @return string
     * @throws \think\Exception
     */
    public function add()
    {
        if (false === $this->request->isPost()) {
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);

        if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
            $params[$this->dataLimitField] = $this->auth->id;
        }
        //生成编号
        //判断长度和数量
        $length = $params['length'] - strlen($params['prefix']);
        if(10**$length < $params['number'] + $params['first']){
            $this->error('编号长度不足');
        }
        $data = [];
        $suffix = sprintf("%'0{$params['length']}s",$params['first']);
        for($i=0;$i<$params['number'];$i++){
            $identifier = strtoupper($params['prefix']).$suffix;
            //查询是否存在
            $exist = $this->model->where('identifier', $identifier)->find();
            if($exist){
                $this->error("编号 $identifier 重复");
            }
            $data[] = [
                'group_id'      => $params['group_id'],
                'identifier'    => $identifier,
            ];
            $suffix = sprintf("%'0{$params['length']}s",++$suffix);
        }

        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($this->modelValidate) {
                $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                $this->model->validateFailException()->validate($validate);
            }
            $result = $this->model->allowField(true)->saveAll($data);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($result === false) {
            $this->error(__('No rows were inserted'));
        }
        $this->success();
    }

    /**
     * 编辑
     *
     * @param $ids
     * @return string
     * @throws DbException
     * @throws \think\Exception
     */
    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds) && !in_array($row[$this->dataLimitField], $adminIds)) {
            $this->error(__('You have no permission'));
        }
        if (false === $this->request->isPost()) {
            $this->view->assign('row', $row);
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);
        //查询是否存在
        $exist = $this->model->where('identifier', $params['identifier'])->find();
        if($exist && $exist['id'] != $params['id']){
            $this->error("编号 {$params['identifier']} 重复");
        }
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($this->modelValidate) {
                $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                $row->validateFailException()->validate($validate);
            }
            $result = $row->allowField(true)->save($params);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if (false === $result) {
            $this->error(__('No rows were updated'));
        }
        $this->success();
    }

    /**
     * 根据学校ID生成学生编号
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function create_id(){
        $group_id = $this->request->post("group_id");

        $info = AuthGroup::where('id', $group_id)->find();
        while ($info['level'] > 2){
            $info = AuthGroup::where('id', $info['pid'])->find();
        }
        //地区编号
        $area_encoded = Area::where('id', $info['city'])->value('encoded');
        //当前学校学生最大编号
        $student_number = Student::where('group_id', $group_id)->value('CONVERT(MAX(RIGHT(`identifier`,4)),UNSIGNED)');
        $student_code = $area_encoded.sprintf("%'04s", $group_id).sprintf("%'04s", $student_number+1);
        $this->success('', '', $student_code);
    }
}