bot: fix media file name setting and parse mode passing in SendAlbum

api.go

@@ -88,7 +88,7 @@ func (b *Bot) sendFiles(method string, files map[string]File, params map[string]
 		defer pipeWriter.Close()
 
 		for field, file := range rawFiles {
-			if err := addFileToWriter(writer, files[field].FileName, field, file); err != nil {
+			if err := addFileToWriter(writer, files[field].fileName, field, file); err != nil {
 				pipeWriter.CloseWithError(err)
 				return
 			}

bot_test.go

@@ -332,7 +332,10 @@ func TestBot(t *testing.T) {
 		_, err = b.SendAlbum(to, nil)
 		assert.Error(t, err)
 
-		msgs, err := b.SendAlbum(to, Album{photo, photo})
+		photo2 := *photo
+		photo2.Caption = ""
+
+		msgs, err := b.SendAlbum(to, Album{photo, &photo2}, ModeHTML)
 		require.NoError(t, err)
 		assert.Len(t, msgs, 2)
 		assert.NotEmpty(t, msgs[0].AlbumID)
@@ -433,7 +436,7 @@ func TestBot(t *testing.T) {
 		assert.NotNil(t, edited.Location)
 	})
 
-	// should be the last
+	// should be after Edit tests
 	t.Run("Delete()", func(t *testing.T) {
 		require.NoError(t, b.Delete(msg))
 	})

file.go

@@ -9,7 +9,6 @@ import (
 type File struct {
 	FileID   string `json:"file_id"`
 	UniqueID string `json:"file_unique_id"`
-	FileName string `json:"file_name"`
 	FileSize int    `json:"file_size"`
 
 	// file on telegram server https://core.telegram.org/bots/api#file
@@ -23,6 +22,8 @@ type File struct {
 
 	// file backed with io.Reader
 	FileReader io.Reader `json:"-"`
+
+	fileName string
 }
 
 // FromDisk constructs a new local (on-disk) file object.

media.go

@@ -86,6 +86,7 @@ type Audio struct {
 
 // MediaFile returns &Audio.File
 func (a *Audio) MediaFile() *File {
+	a.fileName = a.FileName
 	return &a.File
 }
 
@@ -103,6 +104,7 @@ type Document struct {
 
 // MediaFile returns &Document.File
 func (d *Document) MediaFile() *File {
+	d.fileName = d.FileName
 	return &d.File
 }
 
@@ -125,6 +127,7 @@ type Video struct {
 
 // MediaFile returns &Video.File
 func (v *Video) MediaFile() *File {
+	v.fileName = v.FileName
 	return &v.File
 }
 
@@ -145,6 +148,7 @@ type Animation struct {
 
 // MediaFile returns &Animation.File
 func (a *Animation) MediaFile() *File {
+	a.fileName = a.FileName
 	return &a.File
 }
 

util.go

@@ -123,22 +123,15 @@ func extractMessage(data []byte) (*Message, error) {
 }
 
 func extractOptions(how []interface{}) *SendOptions {
-	var opts *SendOptions
+	opts := &SendOptions{}
 
 	for _, prop := range how {
 		switch opt := prop.(type) {
 		case *SendOptions:
 			opts = opt.copy()
 		case *ReplyMarkup:
-			if opts == nil {
-				opts = &SendOptions{}
-			}
 			opts.ReplyMarkup = opt.copy()
 		case Option:
-			if opts == nil {
-				opts = &SendOptions{}
-			}
-
 			switch opt {
 			case NoPreview:
 				opts.DisableWebPagePreview = true
@@ -158,9 +151,6 @@ func extractOptions(how []interface{}) *SendOptions {
 				panic("telebot: unsupported flag-option")
 			}
 		case ParseMode:
-			if opts == nil {
-				opts = &SendOptions{}
-			}
 			opts.ParseMode = opt
 		default:
 			panic("telebot: unsupported send-option")