Add option to upload files in webui

src/webdavupload/Upload.go

@@ -4,6 +4,8 @@ import (
     "fmt"
     "path/filepath"
     "os"
+    "io"
+    "net/http"
     "runtime"
     "sync"
     "sync/atomic"
@@ -21,7 +23,10 @@ func SetImportConfigToTheRemote(c *gowebdav.Client, config configloader.MDWebDav
 }
 
 // Uploads a list of files to the target folder.
-func uploadFiles(c *gowebdav.Client, files []string, remoteTarget string, outputContext string) {
+func uploadFiles(c *gowebdav.Client, w io.Writer, files []string, remoteTarget string, outputContext string) {
+
+    // Check if the io.Writer is a http writer
+    _, wImplementsHttpFlusher := interface{}(w).(http.Flusher)
 
     total := len(files)
     var counter atomic.Uint64
@@ -34,7 +39,10 @@ func uploadFiles(c *gowebdav.Client, files []string, remoteTarget string, output
     semaphore := make(chan struct{}, maxConcTasks)
     wg := &sync.WaitGroup{}
 
-    fmt.Printf("Will upload %v files. Processing %v tasks at a time.\n", total, maxConcTasks)
+    fmt.Fprintf(w, "Will upload %v files. Processing %v tasks at a time.\n", total, maxConcTasks)
+    if wImplementsHttpFlusher == true {
+        w.(http.Flusher).Flush()
+    }
 
     for _, f := range(files) {
 
@@ -56,7 +64,10 @@ func uploadFiles(c *gowebdav.Client, files []string, remoteTarget string, output
             c.WriteStream("./" + remoteTarget + "/" + basename, file, 0644)
 
             counter.Add(1)
-            fmt.Printf(outputContext + ". File %v of %v. Done. (File: %v)\n", counter, total, basename)
+            fmt.Fprintf(w, "Uploading %d of %d - File: %s (%s)\n", counter, total, basename, outputContext)
+            if wImplementsHttpFlusher == true {
+                w.(http.Flusher).Flush()
+            }
 
             <-semaphore // release
 
@@ -70,15 +81,15 @@ func uploadFiles(c *gowebdav.Client, files []string, remoteTarget string, output
 }
 
 // Uploads the selected metadata files.
-func UploadMetadataFiles(c *gowebdav.Client, files []string) {
+func UploadMetadataFiles(c *gowebdav.Client, w io.Writer, files []string) {
 
-    uploadFiles(c, files, "IMPORT_XML", "Uploading metadata files")
+    uploadFiles(c, w, files, "IMPORT_XML", "Uploading metadata files")
 
 }
 
 // Uploads the selected media files.
-func UploadMediaFiles(c *gowebdav.Client, files []string) {
+func UploadMediaFiles(c *gowebdav.Client, w io.Writer, files []string) {
 
-    uploadFiles(c, files, "IMPORT_IMG", "Uploading media files")
+    uploadFiles(c, w, files, "IMPORT_IMG", "Uploading media files")
 
 }