1 files changed, 90 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..6c77033
--- /dev/null
+++ b/main.go
@@ -0,0 +1,90 @@
+package main
+
+import (
+	"log"
+	"net/url"
+	"os"
+	"strings"
+
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+	"github.com/kkdai/youtube/v2"
+)
+
+func main() {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_TOKEN"))
+	bot.SetAPIEndpoint("https://tg.neonxp.ru/bot%s/%s")
+	if err != nil {
+		log.Panic(err)
+	}
+
+	bot.Debug = true
+
+	log.Printf("Authorized on account %s", bot.Self.UserName)
+
+	u := tgbotapi.NewUpdate(0)
+	u.Timeout = 60
+
+	updates := bot.GetUpdatesChan(u)
+
+	for update := range updates {
+		if update.Message != nil { // If we got a message
+
+			message := update.Message
+			link, err := url.Parse(message.Text)
+			if err != nil {
+				continue
+			}
+
+			go func(message *tgbotapi.Message) {
+				if link.Host == "youtube.com" && link.Query().Get("v") != "" {
+					if err := download(bot, message, link.Query().Get("v")); err != nil {
+						msg := tgbotapi.NewMessage(message.Chat.ID, "Ошибка: "+err.Error())
+						log.Println(err)
+						msg.ReplyToMessageID = message.MessageID
+						bot.Send(msg)
+					}
+				} else if link.Host == "youtu.be" && link.Path != "" {
+					pathParts := strings.SplitN(link.Path, "?", 2)
+					if err := download(bot, message, pathParts[0]); err != nil {
+						msg := tgbotapi.NewMessage(message.Chat.ID, "Ошибка: "+err.Error())
+						log.Println(err)
+						msg.ReplyToMessageID = message.MessageID
+						bot.Send(msg)
+					}
+				}
+			}(message)
+		}
+	}
+}
+
+func download(bot *tgbotapi.BotAPI, message *tgbotapi.Message, videoID string) error {
+
+	client := youtube.Client{}
+
+	video, err := client.GetVideo(videoID)
+	if err != nil {
+		return err
+	}
+
+	formats := video.Formats.WithAudioChannels()
+	stream, _, err := client.GetStream(video, &formats[0])
+	if err != nil {
+		return err
+	}
+	defer stream.Close()
+
+	msg := tgbotapi.NewMessage(message.Chat.ID, "Начинаю скачивать: "+video.Title+"\n<a href=\""+formats[0].URL+"\">Адрес файла</a>")
+	msg.ParseMode = "html"
+	msg.ReplyToMessageID = message.MessageID
+	if _, err := bot.Send(msg); err != nil {
+		return err
+	}
+
+	file := tgbotapi.FileReader{
+		Name:   "video.mp4",
+		Reader: stream,
+	}
+	_, err = bot.Send(tgbotapi.NewVideo(message.From.ID, file))
+
+	return err
+}