impl: add files

- fixed del and deldata to deal with more than one ID

transmission-telegram.go

@@ -154,6 +154,8 @@ func main() {
 
 		case "add", "/add":
 			// takes url to a torrent to add it
+			go add(&update, tokens[1:])
+
 		case "search", "/search":
 			// search for a torrent
 			go search(&update, tokens[1:])
@@ -202,6 +204,10 @@ func main() {
 			// prints a help message
 		case "version", "/version":
 			// print transmission and transmission-telegram versions
+		case "":
+			// might be a file received
+			go receiveTorrent(&update)
+
 		default:
 			// no such command, try help
 
@@ -337,7 +343,49 @@ func trackers(ud *tgbotapi.Update) {
 	send(buf.String(), ud.Message.Chat.ID)
 }
 
-// add
+// add takes an URL to a .torrent file to add it to transmission
+func add(ud *tgbotapi.Update, tokens []string) {
+	if len(tokens) == 0 {
+		send("add: needs atleast one URL", ud.Message.Chat.ID)
+		return
+	}
+
+	// loop over the URL/s and add them
+	for _, url := range tokens {
+		cmd := transmission.NewAddCmdByURL(url)
+
+		torrent, err := Client.ExecuteAddCommand(cmd)
+		if err != nil {
+			send("add: "+err.Error(), ud.Message.Chat.ID)
+			continue
+		}
+
+		// check if torrent.Name is empty, then an error happened
+		if torrent.Name == "" {
+			send("add: error adding "+url, ud.Message.Chat.ID)
+			continue
+		}
+		send("Added: "+torrent.Name, ud.Message.Chat.ID)
+	}
+}
+
+// receiveTorrent gets an update that potentially has a .torrent file to add
+func receiveTorrent(ud *tgbotapi.Update) {
+	if ud.Message.Document.FileID == "" {
+		return // has no document
+	}
+
+	// get the file ID and make the config
+	fconfig := tgbotapi.FileConfig{ud.Message.Document.FileID}
+	file, err := Bot.GetFile(fconfig)
+	if err != nil {
+		send("receiver: "+err.Error(), ud.Message.Chat.ID)
+		return
+	}
+
+	// add by file URL
+	add(ud, []string{file.Link(BotToken)})
+}
 
 // search takes a query and returns torrents with match
 func search(ud *tgbotapi.Update, tokens []string) {
@@ -600,10 +648,12 @@ func del(ud *tgbotapi.Update, tokens []string) {
 		send("del: needs an ID", ud.Message.Chat.ID)
 		return
 	}
-	// try to read the id into an int
+
-	num, err := strconv.Atoi(tokens[0])
+	// loop over tokens to read each potential id
+	for _, id := range tokens {
+		num, err := strconv.Atoi(id)
 		if err != nil {
-		send(fmt.Sprintf("del: %s is not an ID", tokens[0]), ud.Message.Chat.ID)
+			send(fmt.Sprintf("del: %s is not an ID", id), ud.Message.Chat.ID)
 			return
 		}
 
@@ -615,6 +665,7 @@ func del(ud *tgbotapi.Update, tokens []string) {
 
 		send("Deleted: "+name, ud.Message.Chat.ID)
 	}
+}
 
 // deldata takes an id or more, and delete the corresponding torrent/s with their data
 func deldata(ud *tgbotapi.Update, tokens []string) {
@@ -623,10 +674,11 @@ func deldata(ud *tgbotapi.Update, tokens []string) {
 		send("deldata: needs an ID", ud.Message.Chat.ID)
 		return
 	}
-	// try to read the id into an int
+	// loop over tokens to read each potential id
-	num, err := strconv.Atoi(tokens[0])
+	for _, id := range tokens {
+		num, err := strconv.Atoi(id)
 		if err != nil {
-		send(fmt.Sprintf("deldata: %s is not an ID", tokens[0]), ud.Message.Chat.ID)
+			send(fmt.Sprintf("deldata: %s is not an ID", id), ud.Message.Chat.ID)
 			return
 		}
 
@@ -638,6 +690,7 @@ func deldata(ud *tgbotapi.Update, tokens []string) {
 
 		send("Deleted with data: "+name, ud.Message.Chat.ID)
 	}
+}
 
 // send takes a chat id and a message to send.
 func send(text string, chatID int64) {