mvp before debug

telegram/telegram.go

@@ -0,0 +1,80 @@
+package telegram
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+
+	"go.balki.me/tss/log"
+)
+
+func main() {
+	fmt.Println("vim-go")
+}
+
+type TelegramSender interface {
+	SendLink(link, channel, rhash string) error
+}
+
+type telegramSender struct {
+	client    *http.Client
+	authToken string
+}
+
+func (ts *telegramSender) SendLink(link string, channel string, rhash string) error {
+
+	msg := struct {
+		ChatID string `json:"chat_id"`
+		Text   string `json:"text"`
+	}{
+		ChatID: channel,
+		Text:   fmt.Sprintf(`<a href="%s">➢</a> <a href="%s">Link</a>`, genIVLink(link, rhash), link),
+	}
+	data, err := json.Marshal(msg)
+
+	if err != nil {
+		return err
+	}
+
+	apiUrl := fmt.Sprintf("https://api.telegram.org/bot%s/sendMessage", ts.authToken)
+	res, err := ts.client.Post(apiUrl, "application/json", bytes.NewReader(data))
+	if err != nil {
+		return err
+	}
+	defer res.Body.Close()
+	responseText, err := io.ReadAll(res.Body)
+	if err != nil {
+		return err
+	}
+	if res.StatusCode != http.StatusOK {
+		log.Error("telegram send failed", "status", res.Status, "request", data, "response", responseText)
+		return errors.New("telegram send failed")
+	}
+	log.Info("sent message on telegram", "link", link, "channel", channel, "response", responseText)
+	return nil
+}
+
+func NewTelegramSender(transport http.RoundTripper, authToken string) TelegramSender {
+	//TODO: Rate limit
+	return &telegramSender{
+		client:    &http.Client{Transport: transport},
+		authToken: authToken,
+	}
+}
+
+func genIVLink(link, rhash string) string {
+	query := url.Values{}
+	query.Set("url", link)
+	query.Set("rhash", rhash)
+	u := url.URL{
+		Scheme:   "https",
+		Host:     "t.me",
+		Path:     "iv",
+		RawQuery: query.Encode(),
+	}
+	return u.String()
+}