package upload

import (
	"errors"
	"go.hoteas.com/hotime"
	"io"
	"mime/multipart"
	"net/http"
	"os"
	"strings"
	"time"
)

type Upload struct {
	Path string
}

func (this *Upload) UpFile(Request *http.Request, fieldName, savefilepath, savePath string) (string, error) {
	Request.ParseMultipartForm(32 << 20)
	var filePath string
	files := Request.MultipartForm.File
	var file multipart.File
	err := errors.New("")

	for k, _ := range files {
		fieldName = k
		file, _, err = Request.FormFile(fieldName)
		if err != nil {
			return "", errors.New("上传文件失败")
		}
	}

	if strings.EqualFold(savePath, "") {

		t := time.Now().Unix()
		data := time.Unix(int64(t), 0).Format("2006-01")
		path := ""
		if strings.EqualFold(savefilepath, "") {
			path = this.Path + data
		} else {
			path = savefilepath + data
		}

		_, err1 := os.Stat(path)
		if err1 != nil {
			if os.IsNotExist(err1) {
				err := os.MkdirAll(path, os.ModePerm)
				if err != nil {
					return "", errors.New("服务器创建头像文件夹失败")
				}
			}
		}
		filename := time.Unix(int64(t), 0).Format("2006-01-02-15-22-25") + hotime.ObjToStr(hotime.Rand(6))
		filePath = path + "/" + filename + this.Path
	} else {
		filePath = savePath
	}

	header, err := os.OpenFile(filePath, os.O_CREATE, 0666)
	if err != nil {
		return "", errors.New("服务器创建文件失败")
	}
	_, err = io.Copy(header, file)

	if err != nil {
		return "", errors.New("服务器复制文件失败")

	}
	return filePath, nil
}