package controller

import (
	uuid "github.com/iris-contrib/go.uuid"
	"github.com/kataras/iris/v12/mvc"
	"io"
	"mime/multipart"
	"os"
	"path/filepath"
	"strings"
	"time"
	"xps/cmd/constant"
	"xps/pkg/system/service"
	"xps/pkg/utils"
)

// client version and secret, it should be from client side
const (
	UploadDir string = "E:/dev-x/xps-server-g5/cmd/main/public/upload/"
	UrlBase   string = "/upload/"
)

type FileData struct {
	FileInfo *multipart.FileHeader
	FileData *multipart.File
}

type UploadController struct {
	Base
	Service service.UploadService
}

func (c *UploadController) BeforeActivation(b mvc.BeforeActivation) {
	b.Handle("POST", "/file", "UploadFile")
	b.Handle("POST", "/files", "UploadFiles")
}

// UploadFile :Single Upload
func (c *UploadController) UploadFile() *JsonResult {
	ocId := c.GetCurOcId()
	userId := c.GetCurUserId()
	f, fh, err := c.Ctx.FormFile("uploadfile")
	if err != nil {
		return ResultErr(err.Error(), nil)
	}
	defer f.Close()

	oldFileName := fh.Filename
	targetFileName := c.GenerateNewFileName(oldFileName)

	out, err := os.OpenFile(targetFileName, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666)
	if err != nil {
		return ResultErr(err.Error(), nil)
	}

	defer out.Close()
	_, err = io.Copy(out, f)
	if err != nil {
		return ResultErr(err.Error(), nil)
	}

	targetFile := service.TargetFile{
		FileName: oldFileName,
		FilePath: targetFileName,
	}

	file, err := c.Service.UploadFile(ocId, userId, constant.DOC_DIR_TEMP, targetFile)
	if err != nil {
		return ResultErr(err.Error(), nil)
	} else {
		return ResultOk("获取成功", file)
	}
}

// UploadFiles :Multiple Upload
func (c *UploadController) UploadFiles() *JsonResult {
	_, files, err := utils.UploadMultiFiles(c.Ctx)
	if err != nil {
		return ResultErr(err.Error(), nil)
	} else {
		return ResultOk("获取成功", files)
	}
}

// CreateDateDir Create date directory
func (c *UploadController) CreateDateDir() (srcPath string) {
	folderName := time.Now().Format("20060102")
	// curPath, _ := os.Getwd()
	src := filepath.Join(UploadDir, folderName)
	_, err := os.Stat(srcPath)
	if os.IsNotExist(err) {
		_ = os.Mkdir(src, os.ModePerm)
		_ = os.Chmod(src, os.ModePerm)
	}

	return src
}

// GenerateNewFileName Generate new file name
func (c *UploadController) GenerateNewFileName(oldFileName string) (srcPath string) {
	u1, _ := uuid.NewV4()
	newFileName := u1.String()
	src := c.CreateDateDir()

	dotIndex := strings.LastIndex(oldFileName, ".")
	if dotIndex != -1 && dotIndex != 0 {
		newFileName += oldFileName[dotIndex:]
	}

	src = filepath.Join(src, newFileName)

	return src
}