refactor(backend): move GetUploadDirPath function to utils for better modularity

backend/internal/controllers/download.go

@@ -2,7 +2,6 @@ package controllers
 
 import (
 	"backend/internal/models"
-	"backend/internal/services"
 	"backend/internal/utils"
 	"backend/middleware"
 	"errors"
@@ -38,7 +37,7 @@ func DownloadShare(c echo.Context) error {
 
 	if shareInfo.Type == models.ShareTypeFile {
 		fileInfo, _ := models.GetRedisFileInfo(shareInfo.Data)
-		uploadPath, err := services.GetUploadDirPath()
+		uploadPath, err := utils.GetUploadDirPath()
 		if err != nil {
 			return err
 		}

backend/internal/controllers/file.go

@@ -150,7 +150,7 @@ func FinishUploadTask(c echo.Context) error {
 	}
 
 	// 合并文件切片
-	uploadPath, _ := services.GetUploadDirPath()
+	uploadPath, _ := utils.GetUploadDirPath()
 	slicesPath := filepath.Join(uploadPath, fmt.Sprintf("%s_%s", r.FileId, "tmp"))
 
 	// 最终合并后的文件路径

backend/internal/models/file.go

@@ -26,7 +26,7 @@ type RedisFileInfo struct {
 	FileInfo
 	FileType  FileType `json:"type"`
 	CreatedAt int64    `json:"created_at"`
-	Expire    int64    `json:"expire"`
+	Expire    int64    `json:"expire"` // 只有上传文件(init)的时候有这个字段
 }
 
 func GetRedisFileInfo(fileId string) (*RedisFileInfo, error) {

backend/internal/services/file.go

@@ -9,21 +9,8 @@ import (
 	"strconv"
 )
 
-func GetUploadDirPath() (string, error) {
-	basepath, err := os.Getwd()
-	if err != nil {
-		return "", err
-	}
-	finalPath := filepath.Join(basepath, "uploads")
-	uploadPath := utils.GetEnvWithDefault("UPLOAD_PATH", finalPath)
-	if err := os.MkdirAll(uploadPath, 0755); err != nil {
-		return "", err
-	}
-	return uploadPath, nil
-}
-
 func CreateFileSlice(fileSlice io.Reader, fileId string, fileIndex int64) error {
-	uploadPath, err := GetUploadDirPath()
+	uploadPath, err := utils.GetUploadDirPath()
 	if err != nil {
 		return err
 	}

backend/internal/utils/file.go

@@ -5,6 +5,8 @@ import (
 	"crypto/md5"
 	"fmt"
 	"io"
+	"os"
+	"path/filepath"
 )
 
 func GetFileId(fileHash string, fileSize int64) string {
@@ -30,3 +32,16 @@ func GetFileMd5(file io.Reader) (string, error) {
 
 	return fmt.Sprintf("%x", hash.Sum(nil)), nil
 }
+
+func GetUploadDirPath() (string, error) {
+	basepath, err := os.Getwd()
+	if err != nil {
+		return "", err
+	}
+	finalPath := filepath.Join(basepath, "uploads")
+	uploadPath := GetEnvWithDefault("UPLOAD_PATH", finalPath)
+	if err := os.MkdirAll(uploadPath, 0755); err != nil {
+		return "", err
+	}
+	return uploadPath, nil
+}