<?php

namespace App\Traits;

use Slowlyo\OwlAdmin\Admin;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Storage;

trait UploadTrait
{
    public function uploadImage()
    {
        return $this->upload('image');
    }

    public function uploadFile()
    {
        return $this->upload();
    }

    /**
     * 富文本内文件上传
     */
    public function uploadRich()
    {
        $fromWangEditor = false;
        $file           = request()->file('file');

        if (!$file) {
            $fromWangEditor = true;
            $file           = request()->file('wangeditor-uploaded-image');
            if (!$file) {
                $file = request()->file('wangeditor-uploaded-video');
            }
        }

        if (!$file) {
            return $this->response()->additional(['errno' => 1])->fail(__('admin.upload_file_error'));
        }

        $path = $file->store(Admin::config('admin.upload.directory.rich'), Admin::config('admin.upload.disk'));

        $link = Storage::disk(Admin::config('admin.upload.disk'))->url($path);

        if ($fromWangEditor) {
            return $this->response()->additional(['errno' => 0])->success(['url' => $link]);
        }

        return $this->response()->additional(compact('link'))->success(compact('link'));
    }

    /**
     * 存放临时文件目录，按日期区分；
     */
    protected function upload($type = 'file')
    {
        $file = request()->file('file');

        if (!$file) {
            return $this->response()->fail(__('admin.upload_file_error'));
        }

        $path = $file->store(Admin::config('admin.upload.tem_directory.' . $type).'/'.date('Y-m-d'), Admin::config('admin.upload.disk'));

        return $this->response()->success(['value' => $path]);
    }

    public function saveImage($field = 'image', $path)
    {
       return $this->saveFile($field, $path);
    }

    /**
     * 表单提交时，转存实际目录，并保留上传时文件名称；文件保存全路径
     */
    public function saveFile($field = 'file', $path)
    {
        $file = request()->file($field);

        if (!$file) {
            $file           = request()->get($field);
        }

        $fileArr = [];
        //判断是否多个文件；
        if(is_string($file) || isset($file['id'])){
            $files = [$file];
        }else{
            $files = $file;
        }

        if($files){
            foreach($files as $file){
                if(is_array($file) && isset($file['state'])){
                    switch($file['state']){
                        case 'init':
                            if(strpos($file['value'], 'temporary') !== false){
                                $filePath = $path.'/'.$file['name'];
                                Storage::disk(Admin::config('admin.upload.disk'))->move($file['value'],  $filePath);
                                $fileArr[] = Storage::disk(Admin::config('admin.upload.disk'))->url($filePath);
                            }else{
                                $fileArr[] = $file['value'];
                            }
                            break;
                        case 'uploaded':
                            if(isset($file['name'])){
                                $filePath = $path.'/'.$file['name'];
                                if(Str::startsWith($file['value'], ['http://', 'https://'])){
                                    $fileUrl = parse_url($file['value']);
                                    $fileValue = ltrim($fileUrl['path'], '/');
                                }else{
                                    $fileValue = $file['value'];
                                }
                                Storage::disk(Admin::config('admin.upload.disk'))->move($fileValue,  $filePath);
                                $fileArr[] = Storage::disk(Admin::config('admin.upload.disk'))->url($filePath);
                            }
                            break;
                    }
                }else{
                    $fileArr[] = $file;
                }
            }
        }
        return $fileArr;
    }

    /**
     *  开始分片上传, 生成唯一ID
     */
    public function startChunk()
    {
        $type = 'file';
        $fileName = request()->get('filename', '');
        $uploadId = md5(time().$fileName);

        //创建临时文件夹
        if ( Storage::disk(Admin::config('admin.upload.disk'))->exists(Admin::config('admin.upload.tem_directory.' . $type).'/'.$uploadId) === false ) {
            if ( Storage::disk(Admin::config('admin.upload.disk'))->makeDirectory(Admin::config('admin.upload.tem_directory.' . $type).'/'.$uploadId) === false ) {
                return false;
            }
        }

        return $this->response()->success(['uploadId' => $uploadId]);
    }

    /**
     * 保存分片
     */
    public function saveChunk()
    {
        $type = 'file';

        $file = request()->file('file');
        $uploadId = request()->get('uploadId');
        $partNumber = request()->get('partNumber');
        $partSize = request()->get('partSize');
        // dd($file);
        $fileName = $file->getClientOriginalName();

        //判断该分片是否已存在，
        $dirPath = Admin::config('admin.upload.tem_directory.' . $type).'/'.$uploadId;
        if(Storage::disk(Admin::config('admin.upload.disk'))->exists($dirPath . '/'.$fileName.'_'.$partNumber)){
            return $this->response()->fail(__('admin.upload_file_error'));
        }else{
            //验证分片大小-todo
            $path = $file->storeAs($dirPath, $fileName.'_'.$partNumber, Admin::config('admin.upload.disk'));
            $realPath = Storage::disk(Admin::config('admin.upload.disk'))->url($path);
            $eTag = md5_file($realPath);
            return $this->response()->success(['eTag' => $eTag]);
        }
    }

    /**
     * 完成分片
     */
    public function finishChunk()
    {
        $type = 'file';
        //合并文件
        $fileName = request()->get('filename', '');
        $uploadId = request()->get('uploadId', '');
        $partList = request()->get('partList', []);

        $basePath = Admin::config('admin.upload.tem_directory.' . $type).'/'.$uploadId;
        $realPath = 'chunk/'.$fileName;

        //获取分片列表中序号，查看分片是否都完成上传
        $partNumberList = Arr::pluck($partList, 'partNumber');
        
        if(max($partNumberList) === count($partNumberList)){
            //判断是否已存在同名文件，进行删除
            if(Storage::disk(Admin::config('admin.upload.disk'))->exists($realPath)){
                $realPath = 'chunk/(1)'.$fileName;
            }
            for($i = 1; $i<=count($partNumberList); $i++){
                $_file = Storage::disk(Admin::config('admin.upload.disk'))->get($basePath.'/'.$fileName.'_'.$i);
                Storage::disk(Admin::config('admin.upload.disk'))->append($realPath, $_file, null);
            }
            //删除分片文件夹
            Storage::disk(Admin::config('admin.upload.disk'))->deleteDirectory($basePath);

            $value = Storage::disk(Admin::config('admin.upload.disk'))->url($realPath);

            return $this->response()->success(['value'=>$value]);
        }else{
            return $this->response()->fail(__('admin.upload_file_error'));
        }
    }
}