refactor and add videos

internal/telegram/telegram.go

@@ -0,0 +1,79 @@
+package telegram
+
+import (
+	"fmt"
+	"log/slog"
+	"strings"
+
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+	"github.com/s32x/httpclient"
+)
+
+type TG struct {
+	api         *tgbotapi.BotAPI
+	video_links chan string
+	logger      *slog.Logger
+	chat_id     int64
+}
+
+func New(logger *slog.Logger, api_key string, chat_id int64, video_links chan string) (*TG, error) {
+	const op = "telegram.New"
+	bot, err := tgbotapi.NewBotAPI(api_key)
+	if err != nil {
+		return nil, fmt.Errorf("%s: %w", op, err)
+	}
+
+	bot.Debug = false
+
+	u := tgbotapi.NewUpdate(0)
+	u.Timeout = 60
+
+	return &TG{
+		api:         bot,
+		video_links: video_links,
+		logger:      logger,
+		chat_id:     chat_id,
+	}, nil
+}
+
+func (tg *TG) Run(count int) {
+	for i := 0; i < count; i++ {
+		go tg.new_tg_worker(i + 1)
+	}
+}
+
+const PCUserAgent string = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36"
+const MobileUserAgent string = "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.36"
+
+func (tg *TG) new_tg_worker(id int) {
+	for link := range tg.video_links {
+		tg.logger.Info(fmt.Sprintf("[%d]", id), "Получена ссылка, загружаю:", link)
+		// get video by link
+		var client *httpclient.Client
+		if strings.Contains(link, "VK_ANDROID") {
+			// create mobile client
+			client = httpclient.New().WithHeader("User-Agent", MobileUserAgent)
+		} else {
+			// create Desktop client
+			client = httpclient.New().WithHeader("User-Agent", PCUserAgent)
+		}
+
+		resp, err := client.Get(link).Do()
+		if err != nil {
+			tg.logger.Error("Error with get media", "err", err)
+			continue
+		}
+		body, err := resp.Bytes()
+		if err != nil {
+			tg.logger.Error("Error with get body", "err", err)
+			continue
+		}
+		msg := tgbotapi.NewVideo(tg.chat_id, tgbotapi.FileBytes{Name: "story", Bytes: body})
+		tg.logger.Info(fmt.Sprintf("[%d] Отправляю видео в телеграм...", id))
+		_, err = tg.api.Send(msg)
+		if err != nil {
+			tg.logger.Error("Error with send message", "err", err)
+			continue
+		}
+	}
+}