<?php

namespace app\admin\controller\course;

use app\common\controller\Backend;
use think\Db;
/**
 * 专栏内容绑定
 *
 * @icon fa fa-circle-o
 */
class Column extends Backend
{

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

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\course\ColumnBind;
        $this->courseModel = new \app\admin\model\course\Course;

    }


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

       $list = $this->model
          ->with(['bindcourse'])
          ->where($where)
           ->order("column_bind.sort asc, column_bind.createtime {$order}")
          ->select();


        if(!empty($list)){
            foreach ($list as $index => &$item){
                if($item['type'] == 1){
                    if($item['bindcourse']['id']){
                        $item['bindcourse'] = $this->courseModel->structrue($item['bindcourse'],'decode');
                    }else{
                        unset($list[$index]);
                    }
                }
            }
            //重新给数组排序
            $list = array_values($list);
        }

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

    /**
     * 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', ''));
        }

        if(isset($params['dir']) && $row['dir']!=$params['dir']){
            $params['sort'] = $this->model->defineSort($row['column_id'],$params['dir']);
        }
        $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);
            }
            $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");
    }


    /**
     * 分组绑定内容
     * @param $groupId
     * @param $courseIds
     * @return mixed
     */
    public function columnBindCourse($columnId=null,$courseIds=null,$type=null,$title=null,$p_id=null){

        $courseIds = $courseIds ?: $this->request->post("course_ids/a");
        $columnId = $columnId ?: $this->request->post("column_id");
        $type = $type ?: $this->request->post("type",1);
        $title = $title ?: $this->request->post("title",'');
        $p_id = $p_id ?: $this->request->post("p_id",0);

        $this->model->setColumnBindCourse($columnId,$courseIds,$p_id,$type,$title);
        return $this->success("操作成功");
    }


    /**
     * 获取专栏绑定的内容ID
     * @param $columnId
     * @return mixed
     */
    public function getBindCourseId($id = null){
        $id = $id ?: $this->request->post("id/a");
        $ids = $this->model->getBindCourseId($id);
        return $this->success("获取成功",$ids);
    }

    /**
     * 切换上下架
     * @param $ids
     * @param $status
     * @param $timing 是否为定时切换事件
     * @return void
     */
    public function tryStatus($ids=null,$status=1){
        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'));
        }

        $status = $status ?: $this->request->post("status");

        $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) {
                $row = [
                    'try'=>$status
                ];
                $this->model->where([
                    'course_id'=>$item['course_id']
                ])->update($row);
                $count++;
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success("操作成功");
        }
        $this->error(__('未操作任何数据'));
    }


    /**
     * 取消绑定
     * @param $groupId
     * @param $courseIds
     * @return void
     */
    public function cancelBind($ids){
        if (false === $this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ?: $this->request->post("ids/a");
        //是否同步从课程列表中删除关联的课程（1=同时删除课程，0=仅从专栏目录中移除）
        $deleteCourse = (int)$this->request->post("delete_course", 0);

        if (empty($ids)) {
            $this->error(__('Parameter %s can not be empty', 'ids'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }

        $list = $this->model->where('id','in', $ids)->whereOr('p_id','in',$ids)->select();

        //收集需要同步删除的课程ID（仅对实际绑定课程的目录项生效，目录节点 type!=1 跳过）
        $courseIdsToDelete = [];
        if ($deleteCourse && !empty($list)) {
            foreach ($list as $item) {
                if (isset($item['type']) && $item['type'] == 1 && !empty($item['course_id'])) {
                    $courseIdsToDelete[] = (int)$item['course_id'];
                }
            }
            $courseIdsToDelete = array_values(array_unique($courseIdsToDelete));
        }

        $count = 0;
        Db::startTrans();
        try {
            foreach ($list as $item) {
                $count += $item->delete();
            }
            //同步删除课程
            if ($deleteCourse && !empty($courseIdsToDelete)) {
                $courseModel = new \app\admin\model\course\Course();
                $courseList = $courseModel->where('id', 'in', $courseIdsToDelete)->select();
                foreach ($courseList as $courseItem) {
                    $courseItem->delete();
                }
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        //清理课程相关缓存
        \app\common\library\cache\Clear::course();
        if ($count) {
            $this->success("操作成功");
        }
        $this->error(__('未移除任何数据'));
    }

    /**
     * 设置排序
     * @param $id
     * @param $type
     * @return mixed
     */
    public function setSort($id,$type = 'up',$p_id = 0)
    {
        $self = $this->model->get($id);

        if(!$self){
            $this->error(__('No Results were found'));
        }

        $direction = $type == 'up' ? '<' : '>';
        $sort =  $type == 'up' ? 'desc' : 'asc';

        $brother = $this->model->where(['column_id'=>$self['column_id'],'p_id'=>$p_id])
            ->where('sort',$direction,$self['sort'])
            ->order('sort',$sort)
            ->find();

        if(!$brother){
            $this->error(__('无继续调节空间'));
        }

        $this->model->where([
            'id'=>$self['id']
        ])->update([
            'sort'=>$brother['sort']
        ]);

        $this->model->where([
            'id'=>$brother['id']
        ])->update([
            'sort'=>$self['sort']
        ]);

        return $this->success("操作成功");
    }

    /**
     * 批量设置排序（拖拽排序）
     * @param $sortList 排序数据数组，每项包含 id 和 sort
     * @return mixed
     */
    public function batchSort()
    {
        $sortList = $this->request->post("sort_list/a");
        if (empty($sortList)) {
            $this->error(__('Parameter %s can not be empty', 'sort_list'));
        }

        $count = 0;
        Db::startTrans();
        try {
            foreach ($sortList as $item) {
                if (!isset($item['id']) || !isset($item['sort'])) {
                    continue;
                }
                $this->model->where([
                    'id' => $item['id']
                ])->update([
                    'sort' => $item['sort']
                ]);
                $count++;
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }

        if ($count) {
            return $this->success("操作成功");
        }
        $this->error(__('未操作任何数据'));
    }
}