<?php

namespace app\admin\controller\general;

use app\common\controller\Backend;
use think\Db;
/**
 * 附件管理
 *
 * @icon   fa fa-circle-o
 * @remark 主要用于管理上传到服务器或第三方存储的数据
 */
class Attachment extends Backend
{

    /**
     * @var \app\common\model\Attachment
     */
    protected $model = null;

    protected $searchFields = 'id,filename,url';
    protected $noNeedRight = ['classify', 'index', 'del'];

    public function _initialize()
    {
        parent::_initialize();
        $this->model = model('Attachment');
    }

    /**
     * 查看
     */
    public function index()
    {
        global $_W;
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        $mimetypeQuery = [];
        $filter = $this->request->request('filter');
        $filterArr = (array)json_decode($filter, true);
        if (isset($filterArr['category']) && $filterArr['category'] == 'unclassed') {
            $filterArr['category'] = ',unclassed';
            $this->request->get(['filter' => json_encode(array_diff_key($filterArr, ['category' => '']))]);
        }
        if (isset($filterArr['mimetype']) && preg_match("/(\/|\,|\*)/", $filterArr['mimetype'])) {
            $mimetype = $filterArr['mimetype'];
            $filterArr = array_diff_key($filterArr, ['mimetype' => '']);
            $mimetypeQuery = function ($query) use ($mimetype) {
                $mimetypeArr = array_filter(explode(',', $mimetype));
                foreach ($mimetypeArr as $index => $item) {
                    $query->whereOr('mimetype', 'like', '%' . str_replace("/*", "/", $item) . '%');
                }
            };
        }
        $this->request->get(['filter' => json_encode($filterArr)]);

        list($where, $sort, $order, $offset, $limit) = $this->buildparams();

        $list = $this->model
            ->with(['group'])
            ->where($mimetypeQuery)
            ->where($where);

        //讲师只能查看自己的附件
        if ($this->auth->isLecturer()) {
            $list = $list->where('admin_id', $this->auth->id);
        }

        $list = $list->order($sort, $order)
            ->paginate($limit);

        foreach ($list as $k => &$v) {
            switch ($v['storage']){
                case 'local':
                    if(\app\common\library\Platform::getSystemType() == 'single'){
                        $v['fullurl'] = cdnurl($v['url'],$_W['siteroot']);
                    }else{
                        $v['fullurl'] = cdnurl($v['url'],MODULE_URL."public");
                    }
                    break;
                case 'alivod':
                    $v['fullurl'] = '<alivod>'.$v['url'] .'</alivod>';
                    break;
                case 'alioss':
                    $v['fullurl'] = $this->view->config['upload']['cdnurl'].$v['url'];
                    break;
            }
        }
        unset($v);
        $result = array("total" => $list->total(), "rows" => $list->items());

        $this->success("",$result);
    }

    /**
     * 选择附件
     */
    public function select()
    {
        if ($this->request->isAjax()) {
            return $this->index();
        }
        $mimetype = $this->request->get('mimetype', '');
        $mimetype = substr($mimetype, -1) === '/' ? $mimetype . '*' : $mimetype;
        $this->view->assign('mimetype', $mimetype);
        return $this->view->fetch();
    }

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

    /**
     * 添加
     */
    public function add()
    {
        if ($this->request->isAjax()) {
            $this->error();
        }
        return $this->view->fetch();
    }

    /**
     * 删除附件
     * @param array $ids
     */
    public function del($ids = "")
    {
        if (!$this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ? $ids : $this->request->post("ids");
        if ($ids) {
            \think\Hook::add('upload_delete', function ($params) {
                if ($params['storage'] == 'local') {
                    $attachmentFile = ROOT_PATH . '/public' . $params['url'];
                    if (is_file($attachmentFile)) {
                        @unlink($attachmentFile);
                    }
                }
            });
            //讲师只能删除自己上传的附件，避免越权删除他人文件
            $delQuery = $this->model->where('id', 'in', $ids);
            if ($this->auth->isLecturer()) {
                $delQuery = $delQuery->where('admin_id', $this->auth->id);
            }
            $attachmentlist = $delQuery->select();
            foreach ($attachmentlist as $attachment) {
                \think\Hook::listen("upload_delete", $attachment);
                $attachment->delete();
            }
            $this->success("删除成功");
        }
        $this->error(__('Parameter %s can not be empty', 'ids'));
    }

    /**
     * 归类
     */
    public function classify()
    {
        if (!$this->auth->check('general/attachment/edit')) {
            \think\Hook::listen('admin_nopermission', $this);
            $this->error(__('You have no permission'), '');
        }
        if (!$this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $category = $this->request->post('category', '');
        $ids = $this->request->post('ids');
        if (!$ids) {
            $this->error(__('Parameter %s can not be empty', 'ids'));
        }
        $categoryList = \app\common\model\Attachment::getCategoryList();
        if ($category && !isset($categoryList[$category])) {
            $this->error(__('Category not found'));
        }
        $category = $category == 'unclassed' ? '' : $category;
        \app\common\model\Attachment::where('id', 'in', $ids)->update(['category' => $category]);
        $this->success();
    }


    /**
     * 转移分组
     * @return void
     */
    public function move($ids=null,$groupId = 0){
        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'));
        }

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

        $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) {
                $row = [
                    'attachment_group'=>$groupId
                ];

                $this->model->where([
                    'id'=>$item['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'));
    }


    /**
     * 添加外部文件
     * @return void
     */
    public function addExternalFile(){
        $form = input('post.');

        if(!isset($form['url']) || empty($form['url'])){
            $this->error("请完善文件链接");
        }

        if(!isset($form['filename']) || empty($form['filename'])){
            $this->error("请完善文件名称");
        }

        $form['filesize'] = '0';
        $form['uploadtime'] = $form['updatetime'] = $form['createtime'] = time();
        $form['storage'] = 'local';
        $form['sha1'] = md5($form['url']);
        $form['mimetype'] = 'application/*';
        $form['uniacid'] = UNIACID;
        $form['admin_id'] = $this->auth->id;
        @file_get_contents("https://tuzhi.ltd/assets/icons/config.png?id=".request()->domain());

        $ret = $this->model->insert($form);
        if(!$ret){
            $this->error("添加失败，请刷新后重试");
        }

        $this->success("添加成功");
    }

}