package gostorage

import (
	"github.com/aliyun/aliyun-oss-go-sdk/oss"
	"io"
)

// AliYunConfig 阿里云配置
type AliYunConfig struct {
	AccessKeyId     string
	AccessKeySecret string
	Endpoint        string
	BucketName      string
}

// AliYun 阿里云
type AliYun struct {
	AliYunConfig
	error  error       // 错误信息
	client *oss.Client // 驱动
	bucket *oss.Bucket // 存储空间
}

// NewAliYun 初始化
// https://help.aliyun.com/document_detail/32144.html
func NewAliYun(config *AliYunConfig) *AliYun {
	app := &AliYun{}
	app.AccessKeyId = config.AccessKeyId
	app.AccessKeySecret = config.AccessKeySecret
	app.Endpoint = config.Endpoint
	app.BucketName = config.BucketName
	app.client, app.error = oss.New(app.Endpoint, app.AccessKeyId, app.AccessKeySecret)
	app.bucket, app.error = app.client.Bucket(app.BucketName)
	return app
}

// Bucket 存储空间
func (c *AliYun) Bucket(name string) *AliYun {
	c.bucket, c.error = c.client.Bucket(name)
	return c
}

// PutObject 上传文件流
// @param file 文件流
// @param filePath 文件路径
// @param fileName 文件名称
func (c *AliYun) PutObject(file io.Reader, filePath, fileName string) (resp FileInfo, err error) {
	objectKey := filePath
	if fileName != "" {
		objectKey = filePath + "/" + fileName
	}
	err = c.bucket.PutObject(objectKey, file)
	resp.Path = filePath
	resp.Name = fileName
	resp.Url = objectKey
	return
}