<?php

namespace App\Module\File\Services;

use App\Module\File\Config\StorageConfig;
use App\Module\File\Logics\DirLogic;
use App\Module\File\Models\FileImg;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Storage;
use Intervention\Image\ImageManager;
use Intervention\Image\Drivers\Imagick\Driver;
use Intervention\Image\Drivers\Gd\Driver as GdDriver;

/**
 * 上传服务类
 * 
 * 提供文件上传相关的服务
 */
class UploadService
{
    /**
     * 用户ID
     *
     * @var int
     */
    protected $userId;

    /**
     * 构造函数
     *
     * @param int $userId 用户ID
     */
    public function __construct(int $userId)
    {
        $this->userId = $userId;
    }

    /**
     * 上传图片
     *
     * @param UploadedFile $file 上传的文件
     * @param bool $private 是否私有
     * @return FileImg 图片模型
     * @throws \Exception 上传失败时抛出异常
     */
    public function uploadImg(UploadedFile $file, $private = false)
    {
        $dirLogic = new DirLogic();
        $dir = $dirLogic->getDir($this->userId);

        // 重绘
        $upfilepath = $file->getRealPath();
        // create image manager with desired driver
        $manager = new ImageManager(new Driver());
        // read image from file system
        $image = $manager->read($upfilepath);
        // resize image proportionally
        $image->scale($image->width(), $image->height());

        $path = $dir . '/' . uniqid() . '.webp';

        // save modified image in new format
        $webpimg = $image->toWebp();
        $fileString = $webpimg->toString();
        $size = $webpimg->size();

        // 保存
        $disk = StorageConfig::getStorage();

        $res = Storage::disk($disk)->put($path, $fileString);
        if ($res === false) {
            throw new \Exception('服务器错误,请联系客服.');
        }
        $f = new FileImg();
        $f->storage_disk = $disk;
        $f->path = $path;
        $f->user_id = $this->userId;
        $f->o_name = $file->getClientOriginalName();
        $f->type1 = 'webp';
        $f->fsize = $size;
        $f->private = (int)$private;
        $f->re_id = 0;
        $f->re_type = '';
        $f->save();
        $f->refresh();

        return $f;
    }
}