<?php

declare(strict_types=1);

/**
 * upload文件管理
 *
 * @version      0.0.0
 * @author      by huwhois
 * @time        2017/11/27
 */

namespace app\sys\controller;

use Exception;
use UnexpectedValueException;
use DirectoryIterator;
use think\facade\View;
use think\facade\Config;
use think\File;
use think\Image;
use think\exception\ValidateException;
use think\file\UploadedFile;

use app\common\service\FileService;
use app\common\model\FileManager as FileManagerModel;
use app\common\facade\FileUtils;

class FileManager extends Base
{
    protected $modelName = 'FileManager';
    protected $t_suffix = '_thumb';
    protected $width = 400;  // 缩略图高度
    protected $height = 300;
    protected $storage_path = 'public/storage';
    
    public function index()
    {
        $param = $this->request->param();

        $param['limit'] = isset($param['limit']) ? (int) $param['limit'] : Config::get('app.page_size');

        $list = FileManagerModel::queryPage($param);

        View::assign('list', $list);
        
        return View::fetch();
    }

    public function queryList()
    {
        $param = $this->request->param();

        $list = FileManagerModel::queryList($param);

        return json(['code'=>0, 'list'=>$list]);
    }

    /**
     * 浏览文件
     */
    public function explorer()
    {
        $param = $this->request->param();

        $activepath =  isset($param['activepath']) ? $param['activepath'] : '';

        $realpath = $this->app->getRootPath() . $this->storage_path . $activepath;

        try {
            $dirhandle = new DirectoryIterator($realpath);

            $dirs = $files = [];

            foreach ($dirhandle as $fileInfo) {
                if($fileInfo->isDot() || $fileInfo->getFilename() == '.gitignore') {
                    continue;
                } elseif ($fileInfo->isDir()) {
                    $dirs[] = $fileInfo->getFilename();
                } elseif ($fileInfo->isFile()) {
                    $files[] = [
                        'filename'  => $fileInfo->getFilename(),
                        'extension' => strtolower($fileInfo->getExtension()),
                        'size' => format_bytes($fileInfo->getSize()),
                        'time' => $fileInfo->getCTime(),
                    ];
                }
            }
            
            $counts = count($dirs) + count($files);

            $activeurl = preg_replace("#[\/][^\/]*$#i", "", $activepath);
            // halt($activeurl);
            if ($this->request->isAjax()) {
                return json([
                    'code'      => 0,
                    'dirs'      => $dirs,
                    'files'     => $files,
                    'counts'    => $counts,
                    'activeurl' => $activeurl,
                    'activepath'=> $activepath,
                ]);
            } else {
                View::assign([
                    'dirs'      => $dirs,
                    'files'     => $files,
                    'counts'    => $counts,
                    'activeurl' => $activeurl,
                    'activepath'=> $activepath,
                ]);
                
                return View::fetch();
            }
            
        } catch(UnexpectedValueException $uve) {
            $this->error($uve->getMessage());
        }
    }

    /**
     * 附件上传
     */
    public function uploadFile()
    {
        $activepath = $this->request->has('activepath') ? $this->request->param('activepath') : '';

        $files = $this->request->file('upload_file');

        if ($files) {
            try {
                validate(
                    [
                        'file' => [
                            // 限制文件大小(单位b)，这里限制为10M
                            'fileSize' => 10 * 1024 * 1024,
                            // 限制文件后缀，多个后缀以英文逗号分割
                            'fileExt'  => 'jpg,png,gif,jpeg,webp,jfif,pdf,doc,docx,xls,xlsx,ppt,pptx,txt'
                        ]
                    ],
                    [
                        'file.fileSize' => '文件太大',
                        'file.fileExt' => '不支持的文件后缀',
                    ]
                )->check(['file' => $files]);

                $savenames = [];

                $uploadFiles = [];
                
                if (!is_array($files) && $files instanceof UploadedFile) {
                    $uploadFiles[] = $files;
                } else {
                    $uploadFiles = $files;
                }

                $url = Config::get('filesystem.disks.public.url');

                foreach ($uploadFiles as $file) {
                    $fileinfo = new FileManagerModel();
                    
                    $fileinfo->title         = $file->getOriginalName();
                    $fileinfo->filesize      = $file->getSize();
                    $fileinfo->filetime      = $file->getCTime();
                    $fileinfo->fileextension = $file->extension();
                    $fileinfo->username      = $this->getSysUser()->username;
                    $fileinfo->hash_md5      = $file->md5();

                    if (empty($activepath)) {
                        $savename = \think\facade\Filesystem::disk('public')->putFile('/', $file);
                        
                        $fileinfo->filepath = $url . '/' . $savename;
                        $fileinfo->filename = basename($savename);  
                    } else {
                        $savename = $activepath . '/' . $file->hashName();
                        $savepath = $this->app->getRootPath() . $this->storage_path . $savename;
                        
                        $file = $file->move($this->app->getRootPath() . $this->storage_path . $activepath, $savepath);

                        $fileinfo->filepath = $url . $savename;
                        $fileinfo->filename = $file->hashName();
                    }

                    $fileinfo->save();

                    $savenames[] = $fileinfo->filepath;
                }

                return json(['code' => 0, 'msg'=>'上传成功', 'filename'=>$savenames]);
            } catch (ValidateException $e) {
                $this->error($e->getMessage());
            }
        } else {
            $this->error('图片不能为空');
        }
    }

    /**
     * 修改文件title
     */
    public function updateFileTitle($id = 0, $filetitle = '')
    {
        $fileInfo = FileManagerModel::find($id);
        if ($fileInfo == null) {
            return json(['code'=>1, 'fileid='.$id.'不存在']);
        }

        $fileInfo->title = $filetitle;

        if ($fileInfo->save()) {
            return json(['code'=>0, 'msg'=>'success']);
        } else {
            return json(['code'=>1, 'msg'=>'failed']);
        }
    }

    /**
     * 删除
     * @param int|array $id  info id
     * @return array
     */
    public function delete($id)
    {
        if ($this->request->isPost()) {
            $whereOp = '=';

            if (is_array($id)) {
                $whereOp = 'IN';
            }

            $list = FileManagerModel::where('fileid', $whereOp, $id)->select();

            foreach ($list as $value) {
                $file = $this->app->getRootPath() . 'public' . $value->filepath;
                if (file_exists($file)) {
                    unlink($file);
                }
            }
  
            if (FileManagerModel::destroy($id)) {
                return ['code' => 0,'msg'=>'删除成功'];
            } else {
                return ['code' => 1,'msg'=>'删除失败'];
            }
        }
    }

    /**
     * 删除空目录
     */
    public function deldir()
    {
        if ($this->request->isPost()) {
            $dir = str_replace('/', DIRECTORY_SEPARATOR, $this->request->param('dir'));

            $dir_name = $this->app->getRootPath() . $this->storage_path . DIRECTORY_SEPARATOR . $dir;

            try {
                rmdir($dir_name);
                return ['code' => 0, 'msg' => 'success'];
            } catch (Exception $e) {
                return ['code' => 1, 'msg' => 'failed, 目录不为空'];
            }
        }
    }

    /**
     * 删除文件
     */
    public function delfile()
    {
        if ($this->request->isPost()) {
            $filename = str_replace('/', DIRECTORY_SEPARATOR, $this->request->param('filename'));

            $filepath = $this->app->getRootPath() . $this->storage_path . DIRECTORY_SEPARATOR . $filename;

            if (unlink($filepath)) {
                return ['code' => 0, 'msg' => 'success'];
            } else {
                return ['code' => 1, 'msg' => 'failed'];
            }
        }
    }

    /**
     * 图片上传(iframe 页面)
     */
    public function uploadimg(string $img_id = 'picture', $thumb = false, $width = 400, $height = 300,
        $original = false, $infoid = 0, $cjid = 0)
    {
        View::assign([
            'img_id'    => $img_id,
            'thumb'     => $thumb,
            'width'     => $width,
            'height'    => $height,
            'original'  => $original,
            'infoid'    => $infoid,
            'cjid'      => $cjid
        ]);

        return View::fetch();
    }

    /**
     * 本地图片上传
     * @file upload_file   上传的文件
     * @param string  $img_id   图片ipnut text id 默认值 picture
     * @param boolean $thumb    是否制作缩略图
     * @param int $width        缩略图最大宽
     * @param int $height       缩略图最大高
     * @param int $id           信息ID
     * @param int $cjid         信息临时ID
     * @param bool $saveoriginal   生成缩略图后是否保存原图 默认保存 saveoriginal
     */
    public function uploadLocalImg(string $img_id = 'picture', $thumb = false, $width = 400, $height = 300,
        $original = false, $id = 0, $cjid = 0)
    {
        if ($this->request->isPost()) {
            $file = $this->request->file('upload_file');

            if ($file) {
                try {
                    validate(
                        [
                            'file' => [
                                // 限制文件大小(单位b)，这里限制为4M
                                'fileSize' => 4 * 1024 * 1024,
                                // 限制文件后缀，多个后缀以英文逗号分割
                                'fileExt'  => 'jpg,png,gif,jpeg,webp,jfif'
                            ]
                        ],
                        [
                            'file.fileSize' => '文件太大',
                            'file.fileExt' => '不支持的文件后缀',
                        ]
                    )->check(['file' => $file]);

                    $result = $this->dealUploadImg($file, $thumb, $width, $height, $original, $id, $cjid);

                    return json([
                        'code'    => 0,
                        'img_id'  => $img_id,
                        'picname' => $result['picname'],
                        'thumb'   => $result['thumbname']
                    ]);
                } catch (ValidateException $e) {
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    $this->error($e->getMessage());
                }
            } else {
                $this->error('图片不能为空');
            }
        }
    }

    /**
     * 网络图片上传
     * @paran string url_file   网络图片地址
     * @param string  $img_id   图片ipnut text id 默认值 picture
     * @param boolean $water    是否添加水印
     * @param boolean $thumb    是否制作缩略图
     * @param int $width        缩略图最大宽
     * @param int $height       缩略图最大高
     * @param bool $overwrite   生成缩略图后是否保存原图
     */
    public function uploadUrlImg(string $img_id = 'picture', $thumb = false, $width = 400, $height = 300,
        $original = false, $id = 0, $cjid = 0)
    {
        if ($this->request->isPost()) {
            $urlImg = $this->request->param('url_file');

            if ($urlImg) {
                try {
                    $file = FileUtils::downloadUrlImg($urlImg);
                    
                    $result = $this->dealUploadImg($file, $thumb, $width, $height, $original, $id, $cjid);

                    // 删除临时文件
                    @unlink($file->getRealPath());

                    return json([
                        'code'    => 0,
                        'img_id'  => $img_id,
                        'picname' => $result['picname'],
                        'thumb'   => $result['thumbname']
                    ]);
                } catch (\think\exception\ValidateException $e) {
                    $this->error($e->getMessage());
                }
            } else {
                $this->error('图片地址不能为空');
            }
        }
    }

    /**
     * 选择服务器图片
     * @paran string online_file  服务器图片地址
     * @param string  $img_id   图片ipnut text id 默认值 picture
     */
    public function uploadOnlineImg(string $img_id = 'picture')
    {
        if ($this->request->isPost()) {
            $pathImg = $this->request->param('online_file');

            if ($pathImg && file_exists($this->app->getRootPath() . "public" . $pathImg)) {
                return json([
                    'code'    => 0,
                    'img_id'  => $img_id,
                    'picname' => $pathImg,
                    'thumb'   => ''
                ]);
            } else {
                $this->error('图片地址不存在');
            }
        }
    }

    /**
     * 判断(远程)文件是否为图片
     */
    // public function isImg()
    // {
    //     if ($this->request->isAjax()) {
    //         $filename = $this->request->param('filename');

    //         $res = \mylib\GetImageByurl::isImg($filename);
    //         if (!$res) {
    //             $this->error('该图片不合法');
    //         } else {
    //             return ['code'=>2,'msg'=>'图片地址可用'];
    //         }
    //     }
    // }

    /**
     * ckeditor 富文本编辑器上传图片
     */
    public function ckeditorUploadImage()
    {
        if ($this->request->isPost()) {
            $file = $this->request->file('upload');

            if ($file) {
                try {
                    validate(
                        [
                            'file' => [
                                // 限制文件大小(单位b)，这里限制为4M
                                'fileSize' => 4 * 1024 * 1024,
                                // 限制文件后缀，多个后缀以英文逗号分割
                                'fileExt'  => 'jpg,png,gif,jpeg,webp,jfif'
                            ]
                        ],
                        [
                            'file.fileSize' => '文件太大',
                            'file.fileExt' => '不支持的文件后缀',
                        ]
                    )->check(['file' => $file]);

                    $savename = \think\facade\Filesystem::disk('public')->putFile('/', $file);

                    $savename = str_replace('\\', '/', $savename);
                    $infoid   = (int) $this->request->param('infoid');
                    $cjid     = (int) $this->request->param('cjid');
                    $username = $this->getSysUser()->username;
                    
                    FileManagerModel::saveFileInfo($file, $savename, $file->getOriginalName(), $infoid, $cjid, $username);

                    return json([
                        'uploaded' => 1,
                        'fileName' => basename($savename),
                        'url' => Config::get('filesystem.disks.public.url') . '/' . $savename
                    ]);
                } catch (\think\exception\ValidateException $e) {
                    $this->error($e->getMessage());
                    return json([
                        'uploaded' => 1,
                        'error' =>  ['message' => $e->getMessage()]
                    ]);
                }
            } else {
                return json([
                    'uploaded' => 1,
                    'error' =>  ['message' => '图片不能为空']
                ]);
            }
        }
    }

    /**
     * 处理上传的图片
     */
    protected function dealUploadImg(UploadedFile $file, $thumb, $width, $height, $original, $id, $cjid): array
    {
        $urlpath = Config::get('filesystem.disks.public.url');

        $username = $this->getSysUser()->username;

        $savename =  str_replace('\\', '/', $file->hashName());

        $originalName = $file->getOriginalName();

        $thumbname = "";

        if ($thumb == true) {
            $image = Image::open($file);
            
            $image->thumb($width, $height, 1);

            $ext = $file->extension();
            
            if ($original == true) {
                \think\facade\Filesystem::disk('public')->putFileAs('/', $file, $savename);
                
                $thumbname = str_replace('.' . $ext, '',  $savename) . $this->t_suffix . '.' . $ext;

                $savepath = str_replace('\\', '/', Config::get('filesystem.disks.public.root') . '/' . $thumbname);

                $image->save($savepath);
                
                FileManagerModel::saveFileInfo($savepath, $thumbname, $originalName, $id, $cjid, $username);

                $thumbname = $urlpath . '/' . $thumbname;
            } else {
                $image->save(Config::get('filesystem.disks.public.root') . '/' . $savename);
            }
        } else {
            \think\facade\Filesystem::disk('public')->putFileAs('/', $file, $savename);
        }

        $fileinfo = FileManagerModel::saveFileInfo($file, $savename, $originalName, $id, $cjid, $username);

        return [
            'picname'   => $fileinfo->filepath,
            'thumbname' => $thumbname,
        ];
    }
}