<?php

namespace app\admin\service;

use app\model\Attachment;
use think\Exception;
use think\image\Image;
use think\File;

class FileService
{

    protected $rootPath = './uploads/'; // 保存根路径

    public function upload($file)
    {
//        $hasFile = $this->hasFile($file);
//        if ($hasFile !== false) {
//            return $hasFile;
//        }

        $info = $file->validate(['ext' => config('uploadFile.file_type')])->move($this->rootPath, true, false);
        if ($info) {

            $filePath = config('uploadFile.img_path') . DS . 'uploads' . DS . $info->getSaveName();

            $data = [
                'name' => $info->getInfo('name'),  //图片原始名称
                'savename' => $info->getFilename(),  //新的图片名称
                'filesize' => $info->getInfo('size'),  //文件大小
                'ext' => $info->getExtension(),  //文件后缀
                'md5' => $info->hash('md5'),
                'sha1' => $info->hash('sha1'),
                'mimetype' => $info->getMime(), //mime类型
                'path' => config('uploadFile.img_path'), //路径
                'url' => DS . 'uploads' . DS . $info->getSaveName(),
                'create_time' => time(),
            ];

            $isImg = in_array(strtolower($info->getExtension()), ['gif', 'jpg', 'jpeg', 'bmp', 'png', 'swf']);  // 上传文件是否为图片
            if ($isImg) {
                // 生成 690 和1020尺寸的缩略图
                $image = \think\Image::open($filePath);
                $data['imagewidth'] = $image->width();
                $data['imageheight'] = $image->height();
                $data['imagetype'] = $info->getInFo('type');

                $thumPath690 = 'uploads' . DS . 'thumb690' . DS . date('Ymd', time());
                $thumPath1024 = 'uploads' . DS . 'thumb1024' . DS . date('Ymd', time());
                $thumb1 = $this->saveThumbCOS($filePath, $thumPath690, $data['imagewidth'], $data['imageheight'], $data['savename'], 690);
                $thumb2 = $this->saveThumbCOS($filePath, $thumPath1024, $data['imagewidth'], $data['imageheight'], $data['savename'], 1024);
                $data['thum1'] = $thumb1 != false ? $thumb1 : 'uploads' . DS . $info->getSaveName();
                $data['thum2'] = $thumb2 != false ? $thumb2 : 'uploads' . DS . $info->getSaveName();
            }


            //将图片转移到阿里云(原图)
            $upload = ossUpload(trim(str_replace("\\", "/", $data['url']), '/'),$filePath);         

            unset($info);       //释放变量才能删除图片
            unlink($filePath);  //把本地图片删除(原图)

            if ($upload['code'] == -1){
                throw new Exception($upload['msg']);
            }
            $result = Attachment::create($data);
           
            if ($result) {
                
                return [
                    'id' => $result->id,
                    'url' => str_replace('\\', '/', config('uploadFile.url') . $result['url']),
                    'name' => $result['name'],
                    'thumb_url' => $isImg ? str_replace('\\', '/', config('uploadFile.url') . '/' .  $result['thum1']): '',
                    'thumb_url2' => $isImg ?str_replace('\\', '/',  config('uploadFile.url') . '/' . $result['thum2']): '',
                    'ext' => $result['ext']
                ];
            } else {
                throw new Exception('文件保存失败');
            }
        } else {
            throw new Exception($file->getError());
        }
    }

    /**
     * 检查上传文件是否存在,若存在则直接返回文件
     * @param $file 上传文件内容
     * @return array|bool
     * @author: bordon
     */
    public function hasFile($file)
    {
        if ($attach = Attachment::where(['md5' => $file->hash('md5'), 'sha1' => $file->hash('sha1')])->find()) {
            return [
                'id' => $attach->id,
                'url' => config('uploadFile.url') . $attach['url'],
                'name' => $attach['name'],
                'thumb_url' => config('uploadFile.url') . DS . $attach['thum1'],
                'thumb_url2' => config('uploadFile.url') . DS . $attach['thum2'],
                'ext' => $attach['ext']
            ];
        } else {
            return false;
        }
    }

    /**
     * 生成固定尺寸缩略图
     * @param $image  图片内容
     * @param $path  存储路径
     * @param $width  图片宽度
     * @param $height 图片高度
     * @param savename 保存文件名
     * @param $saveWidth 保存文件最大宽度
     * @author: bordon
     */
    public function saveThumb($filePath, $path, $width, $height, $savename, $saveWidth)
    {
        if ($width < $saveWidth) {
            return false;
        }
        if (!is_dir($path)) {
            mkdir($path, 0755, true);
        }
        \think\Image::open($filePath)->thumb($saveWidth, $height * ($width / $saveWidth))->save($path . DS . $savename, null, 100);
        return $path . DS . $savename;
    }

    /**
     * 生成固定尺寸缩略图存到腾讯云
     * @param $image  图片内容
     * @param $path  存储路径
     * @param $width  图片宽度
     * @param $height 图片高度
     * @param savename 保存文件名
     * @param $saveWidth 保存文件最大宽度
     * @param $isWorker 是否定时器使用这方法(定时器保存图片路径要加上public)
     * @author: bordon
     */
    public function saveThumbCOS($filePath, $path, $width, $height, $savename, $saveWidth, $isWorker = false){
        if ($width < $saveWidth) {
            return false;
        }
        if (!is_dir($path)) {
            mkdir($path, 0755, true);
        }
        $pathName = $path . DS . $savename;    //入库 url字段
        $thumbPath = config('uploadFile.img_path') . $pathName; //图片全路径
        try{
            //裁剪图片
            \think\Image::open($filePath)->thumb($saveWidth, $height * ($width / $saveWidth))->save($pathName, null, 100);
            if ($isWorker){
                $thumbPath = ROOT_PATH . $pathName; //图片全路径(多了一层public目录)
                $pathName = str_replace('public', '', $pathName);   //保存图片到腾讯云要过滤public,保存路径为/uploads/../..
            }
            //将图片转移到阿里云
            $upload = ossUpload( trim(str_replace("\\", "/",  $pathName), '/') , $thumbPath);
            
            //$upload = ossUpload($pathName, $thumbPath);

            unlink($thumbPath);  //把本地图片删除(缩略图)
            if ($upload['code'] == 1){
                return $pathName;
            }else{
                trace($upload['msg'], 'error');
                return false;
            }
        }catch (\Exception $e){
            unlink($thumbPath);  //把本地图片删除(原图)
            trace($e->getMessage(), 'error');
            return false;
        }
    }

}