<?php

namespace app\admin\controller\app\exam;

use app\common\controller\Backend;
use think\Db;
/**
 * 题库_练习
 *
 * @icon fa fa-circle-o
 */
class Exercises extends Backend
{

    /**
     * Exercises模型对象
     * @var \app\admin\model\app\exam\Exercises
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\app\exam\Exercises;
        $this->logModel = new \app\admin\model\app\exam\ExercisesLog;
    }


    /**
     * 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 = false;
       //设置过滤方法
       $this->request->filter(['strip_tags', 'trim']);
       //如果发送的来源是Selectpage，则转发到Selectpage
       if ($this->request->request('keyField')) {
           return $this->selectpage();
       }
       list($where, $sort, $order, $offset, $limit) = $this->buildparams();
       
       $list = $this->model
           ->with(['course'])
          ->where($where)
          ->order($sort, $order)
          ->paginate($limit);
       
       foreach ($list as $row) {

           $row->course->visible(['id','name','cover','pay_type','price']);

           $row->bind_warehouse_group = $this->model->getBindWarehouseGroup($row->id);

           $row->answer_user_count = $this->logModel->where([
               'exercises_id'=>$row->id
           ])->group('user_id')->count();
           
           $row->answer_log_count = $this->logModel->where([
               'exercises_id'=>$row->id
           ])->count();

       }
       
       $result = array("total" => $list->total(), "rows" => $list->items(),'attr'=>[
           'statusList'=>$this->model->getStatusList(),
           'hideList'=>$this->model->getHideList(),
           'salesTypeList'=>$this->model->getSalesTypeList(),
           'questionModeList'=>$this->model->getQuestionModeList(),
       ]);
       
       return $this->success("获取成功",$result);
    }


    /**
     * 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;
        }

        $params = $this->parseParams($params);

        $result = false;
        Db::startTrans();
        try {

            $warehouseGroupIds = $params['warehouse'];
            unset($params['warehouse']);

            //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 = $this->model->allowField(true)->insertGetId($params);

            \app\admin\model\app\exam\ExercisesBindWarehouseGroup::exercisesBindWarehouseGroup($result,$warehouseGroupIds);

            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($result === false) {
            $this->error(__('No rows were inserted'));
        }
        $this->success("提交成功");
    }

    /**
     * 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'));
        }

        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);

        $params = $this->parseParams($params);

        if($params['sales_type'] != 3){
            $params['bind_course'] = '';
        }


        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($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);
            }

            $warehouseGroupIds = $params['warehouse'];
            unset($params['warehouse']);
            \app\admin\model\app\exam\ExercisesBindWarehouseGroup::exercisesBindWarehouseGroup($row->id,$warehouseGroupIds);

            $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("提交成功");
    }

    /**
     * 解析&格式化参数
     * @return void
     */
    public function parseParams($params){

        $params['uniacid'] = UNIACID;
        $params['createtime'] = $params['updatetime'] = time();

        if($params['bind_course'] && isset($params['bind_course']['id'])){
            $params['bind_course'] = $params['bind_course']['id'];
        }

        if(empty($params['warehouse'])){
            $this->error('请关联题库');
        }

        $warehouseGroupIds = [];

        foreach ($params['warehouse'] as $item){
            $warehouseGroupIds[] = $item['id'];
        }

        $params['warehouse'] = $warehouseGroupIds;

        return $params;
    }

    /**
     * 获取详情
     * @param $id
     * @return mixed
     */
    public function detail($id){
        $row = $this->model->get($id);
        if (!$row) {
            $this->error(__('No Results were found'));
        }

        //获取绑定课程
        if($row->bind_course){
            $courseInfo = \app\admin\model\course\Course::where([
                'id'=>$row->bind_course
            ])->field(['id','cover','name'])->find();

            if($courseInfo){
                $row->bind_course = $courseInfo;
            }else{
                $row->bind_course = [];
            }
        }


        //获取绑定的题库分组

        $bindWarehouseGroup = $this->model->getBindWarehouseGroup($row->id);
        $warehouse = [];

        if($bindWarehouseGroup){
            $bindWarehouseGroup = collection($bindWarehouseGroup)->toArray();
            foreach ($bindWarehouseGroup as $item){
                if($item['group']['id']){
                    $warehouse[] = $item['group'];
                }else{
                    $warehouse[] = [
                        'id'=>0,
                        'question_count'=>$item['group']['question_count'],
                        'name'=>'未分组'
                    ];
                }
            }
        }


        $row->warehouse = $warehouse;


        return $this->success("获取成功",$row);
    }


    /**
     * 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();

        $count = 0;
        Db::startTrans();
        try {
            foreach ($list as $item) {
                \app\admin\model\app\exam\ExercisesBindWarehouseGroup::where([
                    'exercises_id'=>$item->id
                ])->delete();
                $count += $item->delete();
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success("操作成功");
        }
        $this->error(__('No rows were deleted'));
    }
}