<?php

namespace addons\Course\backend\controllers;

use addons\Course\common\models\AddonsCourseChapter;
use addons\Course\common\models\AddonsCourseDirectorys;
use common\enums\StatusEnum;

/**
 * 默认控制器
 *
 * Class DefaultController
 * @package addons\Course\backend\controllers
 */
class DirectoryController extends BaseController
{
    public function actionList()
    {
        if (!\Yii::$app->request->isGet) {
            return $this->error('请求方式错误');
        }
        $mall_id = $this->mall_id;
        $course_id = \Yii::$app->request->get('course_id');
        // 列表形式，1：普通列表，2：树形列表
        $list_type = \Yii::$app->request->get('list_type', 1);
        if (empty($course_id) || empty($list_type)) {
            return $this->error('参数错误');
        }

        if (1 == $list_type) {
            $list = AddonsCourseDirectorys::getList($mall_id, $course_id, 'id,name,course_id,parent_id,sort');
        } elseif (2 == $list_type) {
            $list = AddonsCourseDirectorys::getDirTreeList($mall_id, $course_id, 'id,name,course_id,parent_id,sort');
            if (!empty($list)) {
                foreach ($list['tree'] as $lk => $lv) {
                    $list['tree'][$lk]['label'] = $lv['name'];
                    unset($list['tree'][$lk]['name']);
                    if (!empty($lv['sub_dir'])) {
                        foreach ($lv['sub_dir'] as $sk => $sv) {
                            $list['tree'][$lk]['children'][] = $sv;
                            $list['tree'][$lk]['children'][$sk]['label'] = $sv['name'];
                            unset($list['tree'][$lk]['sub_dir'], $list['tree'][$lk]['children'][$sk]['name']);
                        }
                    }
                }
            }
        }
        return $this->success('success', $list);
    }


    /**
     * @name: 
     * @msg: 添加目录
     * @param {int} course_id 课程 id
     * @param {int} parent_id 父级目录 id
     * @param {string} name 目录名称
     * @return {*}
     */
    public function actionAddDir()
    {
        if (!\Yii::$app->request->isPost) {
            return $this->error('请求方式错误');
        }
        $post = \Yii::$app->request->post();
        if (empty($post['dir_type']) || !in_array($post['dir_type'], [1, 2])) {
            return $this->error('参数错误');
        }
        if (1 == $post['dir_type']) {
            // 添加一级目录
            $rules = [
                [['course_id', 'name'], 'required'],
                ['course_id', 'integer'],
                ['name', 'string', 'max' => 50],
            ];
        } else {
            // 添加子级目录
            $rules = [
                [['course_id', 'name', 'parent_id'], 'required'],
                [['course_id', 'parent_id'], 'integer'],
                ['name', 'string', 'max' => 50],
                ['level', 'safe'],
            ];
            $post['level'] = 2;
        }
        $res = \Yii::$app->services->validate->validate($post, $rules);
        if ($res === false) return $this->error(\Yii::$app->services->validate->getErrorMessage());
        if (empty($post['parent_id'])) {
            $parent_dir_id = 0;
            $level = 1;
        } else {
            $parent_dir_id = $post['parent_id'];
            $level = 2;
        }

        $post['sort'] = AddonsCourseDirectorys::getLastSort($this->mall_id, $post['course_id'], $parent_dir_id ?? 0, $level);
        // dd($post, $post['sort'], $parent_dir_id);
        $res = AddonsCourseDirectorys::setData($this->mall_id, $post, 'addSubDir');
        if (false === $res) {
            return $this->error(AddonsCourseDirectorys::getStaticError());
        }
        return $this->success('添加成功');
    }


    /**
     * @name: 
     * @msg: 目录改名称
     * @param {*}
     * @return {*}
     */
    public function actionRename()
    {
        if (!\Yii::$app->request->isPost) {
            return $this->error('请求方式错误');
        }
        $id = \Yii::$app->request->post('id');
        $name = \Yii::$app->request->post('name');
        $course_id = \Yii::$app->request->post('course_id');
        if (empty($id) || empty($name) || empty($course_id)) {
            return $this->error('参数错误');
        }
        $dir_names = AddonsCourseDirectorys::find()
            ->select('name')
            ->where(['mall_id' => $this->mall_id, 'status' => StatusEnum::ENABLED, 'course_id' => $course_id])
            ->asArray()
            ->column();
        if (in_array($name, $dir_names)) {
            return $this->error('目录名称已经存在');
        }
        $params = [
            'id' => $id,
            'name' => $name,
        ];
        $res = AddonsCourseDirectorys::setData($this->mall_id, $params, 'rename');
        if (false === $res) {
            return $this->error(AddonsCourseDirectorys::getStaticError());
        }
        return $this->success('添加成功');
    }


    /**
     * @name: 
     * @msg: 目录改变排序，只能相邻两个互换排序，不能拖动跳过多个进行排序
     * @param {int} id 目录 id
     * @param {int} type 操作类型，1：上移，2：下移
     * @return {*}
     */
    public function actionSortDir()
    {
        if (!\Yii::$app->request->isGet) {
            return $this->error('请求方式错误');
        }
        $id = \Yii::$app->request->get('id');
        $type = \Yii::$app->request->get('type', 1);
        if (empty($id) || (empty($type) && !in_array($type, [1, 2]))) {
            return $this->error('参数错误');
        }

        $res = AddonsCourseDirectorys::switchDirSort($id, $this->mall_id, $type);
        if (false === $res) {
            return $this->error('更改排序失败：' . AddonsCourseDirectorys::getStaticError());
        } else {
            return $this->success('更改排序成功');
        }
    }


    /**
     * @name: 
     * @msg: 删除目录，目录下有章节时不能删除,目录下有子级目录时不能删除
     * @param {int} id 目录 id
     * @return {*}
     */
    public function actionDelete()
    {
        if (!\Yii::$app->request->isPost) {
            return $this->error('请求方式错误');
        }
        $id = \Yii::$app->request->post('id');
        if (empty($id)) {
            return $this->error('参数错误');
        }
        $dirs = AddonsCourseDirectorys::findOne(['mall_id' => $this->mall_id, 'parent_id' => $id, 'status' => StatusEnum::ENABLED]);
        if (!empty($dirs)) {
            return $this->error('该目录下尚有子级目录，不能删除');
        }
        $chapter = AddonsCourseChapter::findOne(['mall_id' => $this->mall_id, 'dir_id' => $id, 'status' => StatusEnum::ENABLED]);
        if (!empty($chapter)) {
            return $this->error('该目录下尚有课程章节，不能删除');
        }

        $res = AddonsCourseDirectorys::findOne(['mall_id' => $this->mall_id, 'id' => $id, 'status' => StatusEnum::ENABLED])->delete();
        if ($res) {
            return $this->success('删除成功');
        } else {
            return $this->error('删除失败');
        }
    }


    /**
     * @name: 
     * @msg: 移动一个或者多个章节到一个目录里，不能跨课程移动！！！！！！
     * @param {integer} $course_id 课程 id
     * @param {integer|array} $chapter_ids 一个或者多个章节 id
     * @param {integer} $target_dir_id 目标目录 id，只能是一个
     * @return {*}
     */
    public function actionMoveChapters()
    {
        if (!\Yii::$app->request->isPost || !\Yii::$app->request->isAjax) {
            return $this->error('请求方式错误');
        }
        $course_id = \Yii::$app->request->post('course_id');
        // 章节id，一个或者多个，如果是多个放数组内
        $chapter_ids = \Yii::$app->request->post('chapter_id');
        // 目标目录 id，只能是移动到一个目录里
        $target_dir_id = \Yii::$app->request->post('target_dir_id');
        if (empty($course_id) || empty($chapter_ids) || (empty($target_dir_id) && $target_dir_id != 0)) {
            return $this->error('参数错误');
        }

        $res = AddonsCourseChapter::updateAll(['dir_id' => $target_dir_id], ['mall_id' => $this->mall_id, 'course_id' => $course_id, 'id' => $chapter_ids]);
        if (false !== $res) {
            return $this->success('移动成功');
        } else {
            return $this->error('移动失败');
        }
    }
}