<?php

namespace app\admin\controller\school\classes;

use app\common\controller\Backend;
use app\common\model\school\classes\Order;
use app\common\model\User;
use app\manystore\model\Manystore;
use think\Db;
use think\db\exception\DataNotFoundException;
use think\db\exception\ModelNotFoundException;
use think\Exception;
use think\exception\DbException;
use think\exception\PDOException;
use think\exception\ValidateException;

/**
 * 机构课程课时规格
 *
 * @icon fa fa-circle-o
 */
class ClassesSpec extends Backend
{

    /**
     * ClassesSpec模型对象
     * @var \app\admin\model\school\classes\ClassesSpec
     */
    protected $model = null;

    protected $qSwitch = true;
    protected $qFields = ["classes_lib_id"];

    protected $no_auth_fields = ['name','limit_num','status','weigh'];
    protected $have_auth = false;


    public function _initialize()
    {
        $this->model = new \app\admin\model\school\classes\ClassesSpec;
        parent::_initialize();

        $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();

            $list = $this->model
                    ->with(['lib'])
                    ->where($where)
                    ->order($sort, $order)
                    ->paginate($limit);

            foreach ($list as $row) {
                
                $row->getRelation('lib')->visible(['title','headimage']);
            }

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

            return json($result);
        }
        return $this->view->fetch();
    }

    protected function no_auth_fields_check($params,$row){

        foreach ($params as $k=>$v){

            //说明数值有变动
            //$params[$k] 去掉两端空格
            $params[$k] = trim($v);

            if($row[$k]!=$params[$k]){
                //当修改参数不在允许修改的字段中
                if(!in_array($k,$this->no_auth_fields)){

                    $this->have_auth = true;break;

                }
            }

        }

        return $this->have_auth;

    }

    protected function update_classes($classes_lib_id){
        //更新课程规格库存
        //所有课时加起来
        \app\common\model\school\classes\ClassesLib::update_classes($classes_lib_id);
    }


    protected function updateCheck($id,$params=[],$row=null){
        if($params && $row){

            if(!$this->no_auth_fields_check($params,$row)){
                return true;
            }
        }

        // 课程存在售后订单则不允许操作
        // 课程存在未完成订单则不允许操作
        $order = \app\common\model\school\classes\hour\Order::where("classes_lib_spec_id",$id)->where("status","in","-1,0")->find();
        if($order)$this->error("存在正在使用中的课时订单报名学员，课时规格无法继续操作，如规格有误请下架！");
    }


    protected function update_check(&$params,$row=null)
    {


        //开始和结束时间不能为空
        $start_time = $params["start_time"];
        $end_time = $params["end_time"];
        if(empty($start_time) || empty($end_time)){
            $this->error("请选择开始和结束时间");
        }
        //转化时间戳
        $start_time = $params["start_time"] && !is_numeric($params["start_time"]) ? strtotime($params["start_time"]) : $params["start_time"];
        $end_time = $params["end_time"] && !is_numeric($params["end_time"]) ? strtotime($params["end_time"]) : $params["end_time"];
        //结束时间不能小于开始时间
        if($end_time<=$start_time){
            $this->error("结束时间不能小于开始时间");
        }

         //结束时间不能是已经过去的时间
        $now_time = time();
        if($end_time<=$now_time){
            $this->error("结束时间不能是已经过去的时间");
        }


         $orderTimeTableName = $this->model->getWithAlisaName();
        //修改
        if($row){
            $this->updateCheck($row->id,$params,$row);
            //规格名字不能一样（同课程下）
            $spec_name = $params["name"];
            $classes_lib_id = $params["classes_lib_id"];
            $spec_name_exist = $this->model::where("name",$spec_name)->where("classes_lib_id",$classes_lib_id)->where("id","<>",$row->id)->find();
            if($spec_name_exist){
                $this->error("该课程下已存在该课时规格名称，请重新输入");
            }
            //同课程下，各个课时的开始和结束时间不能有重叠（出现时间交叠也不行）
            $spec_time_exist = $this->model::where(function ($query) use ($orderTimeTableName,$start_time,$end_time) {
                    //兩個時間區間重合 存在任意交集 都不行
                    $query->where("start_time BETWEEN {$start_time} AND {$end_time}");
                    $query->whereOr("end_time BETWEEN {$start_time} AND {$end_time}");
                    $query->whereOr("start_time <= {$start_time} AND end_time >= {$end_time}");
                    $query->whereOr("start_time >= {$start_time} AND end_time <= {$end_time}");
                })
                ->where("classes_lib_id",$classes_lib_id)
                ->where("id","<>",$row->id)->find();

            if($spec_time_exist){
                $this->error("该课程下，{$spec_time_exist['name']}课时的开始和结束时间与你有重叠");
            }


        }else{
            //新增
             //规格名字不能一样（同课程下）
            $spec_name = $params["name"];
            $classes_lib_id = $params["classes_lib_id"];
            $spec_name_exist = $this->model::where("name",$spec_name)->where("classes_lib_id",$classes_lib_id)->find();
            if($spec_name_exist){
                $this->error("该课程下已存在该课时规格名称，请重新输入");
            }

             //同课程下，各个课时的开始和结束时间不能有重叠（出现时间交叠也不行）
            $spec_time_exist = $this->model::where(function ($query) use ($orderTimeTableName,$start_time,$end_time) {
                    //兩個時間區間重合 存在任意交集 都不行
                    $query->where("start_time BETWEEN {$start_time} AND {$end_time}");
                    $query->whereOr("end_time BETWEEN {$start_time} AND {$end_time}");
                    $query->whereOr("start_time <= {$start_time} AND end_time >= {$end_time}");
                    $query->whereOr("start_time >= {$start_time} AND end_time <= {$end_time}");
                })
                ->where("classes_lib_id",$classes_lib_id)
                ->find();

            if($spec_time_exist){
                $this->error("该课程下，{$spec_time_exist['name']}课时的开始和结束时间与你有重叠");
            }

        }

;
    }


    /**
     * 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;
        }
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($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);
            }
            $this->update_check($params,$row=null);
            $result = $this->model->allowField(true)->save($params);
            $this->update_classes($this->model["classes_lib_id"]);
            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);
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($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);
            }
            $this->update_check($params,$row);
            $result = $row->allowField(true)->save($params);
            $this->update_classes($row["classes_lib_id"]);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if (false === $result) {
            $this->error(__('No rows were updated'));
        }
        $this->success();
    }

    /**
     * 删除
     *
     * @param $ids
     * @return void
     * @throws DbException
     * @throws DataNotFoundException
     * @throws ModelNotFoundException
     */
    public function del($ids = null)
    {
        if (false === $this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ?: $this->request->post("ids");
        if (empty($ids)) {
            $this->error(__('Parameter %s can not be empty', 'ids'));
        }
        $pk = $this->model->getPk();
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }
        $list = $this->model->where($pk, 'in', $ids)->select();
        $datas = [];
        foreach ($list as $item) {
            $this->updateCheck($item->id);
            $datas[] = $item->classes_lib_id;
        }


        $count = 0;
        Db::startTrans();
        try {
            foreach ($list as $item) {
                $count += $item->delete();
            }
            foreach ($datas as $classes_lib_id) {
                $this->update_classes($classes_lib_id);
            }

            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success();
        }
        $this->error(__('No rows were deleted'));
    }


}