downlad into temp folder then move to out folder when done, temp replace with my fork until upstream PR is merged

app/main.go

@@ -15,12 +15,17 @@ import (
 func main() {
 
 	out_dir := os.Getenv("OUT_PATH")
+	temp_dir := os.Getenv("TEMP_PATH")
 	bot_token := os.Getenv("DISCORD_TOKEN")
 
 	if out_dir == "" {
 		panic("No output dir specified")
 	}
 
+	if temp_dir == "" {
+		panic("No temp dir specified")
+	}
+
 	s, err := discordgo.New("Bot " + bot_token)
 	if err != nil {
 		log.Fatalf("Invalid bot parameters: %v", err)
@@ -248,7 +253,7 @@ func main() {
 				go func() {
 					// Small delay to ensure response is sent first
 					time.Sleep(100 * time.Millisecond)
-					startAsyncDownload(s, i, state.URL, state.VideoFormatID, state.AudioFormatID, out_dir)
+					startAsyncDownload(s, i, state.URL, state.VideoFormatID, state.AudioFormatID, out_dir, temp_dir)
 				}()
 
 				// Clean up state after starting download