Add Telegram bot listener with inline post management

bot_handler.go

@@ -0,0 +1,267 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"git.zio.sh/astra/bsky2tg/bsky"
+	tgbotapi "github.com/OvyFlash/telegram-bot-api"
+)
+
+// HandleBotMessage processes incoming bot messages and looks for post URLs
+func (h *handler) HandleBotMessage(message *tgbotapi.Message) error {
+	// Check if user is a channel admin
+	if message.From != nil && !h.isUserAdmin(message.From.ID) {
+		log.Printf("User is not an admin: %s", message.From)
+		// h.sendMessage(message.Chat.ID, "❌ Only channel admins can use this bot")
+		return nil
+	}
+
+	// Get text from message or caption
+	text := message.Text
+	if text == "" {
+		text = message.Caption
+	}
+
+	if text == "" {
+		return nil
+	}
+
+	// Look for Bluesky post URLs in the message
+	// Format: https://bsky.app/profile/{handle}/post/{rkey}
+	var postURL string
+	if message.ForwardOrigin != nil {
+		if len(message.CaptionEntities) != 0 {
+			postURL = message.CaptionEntities[len(message.CaptionEntities)-1].URL
+		} else {
+			postURL = message.Entities[len(message.Entities)-1].URL
+		}
+	} else {
+		postURL = extractBskyPostURL(text)
+		if postURL == "" {
+			return nil
+		}
+	}
+
+	// Extract RKey from the URL (last part after /post/)
+	rkey := extractRKeyFromURL(postURL)
+	if rkey == "" {
+		h.sendMessage(message.Chat.ID, "❌ Could not extract post ID from URL")
+		return nil
+	}
+
+	// Fetch the post from PDS using the RKey
+	post := h.bsky.Bluesky.GetPost(fmt.Sprintf("at://%s/app.bsky.feed.post/%s", h.bsky.Bluesky.Cfg.DID, rkey))
+	if post == nil {
+		h.sendMessage(message.Chat.ID, "❌ Could not fetch post from Bluesky")
+		return nil
+	}
+
+	// Format the response
+	response := formatPostResponse(post, postURL)
+
+	// Try to find the corresponding channel message
+	telegramRecord, err := h.bsky.Bluesky.GetTelegramData(rkey)
+	if err == "" && telegramRecord != nil && len(telegramRecord.MessageID) > 0 {
+		h.sendMessageWithButtons(message.Chat.ID, response, rkey, postURL, telegramRecord.ChannelID, telegramRecord.MessageID[0])
+	} else {
+		h.sendMessage(message.Chat.ID, response)
+	}
+
+	return nil
+}
+
+// extractBskyPostURL finds a Bluesky post URL in text
+func extractBskyPostURL(text string) string {
+	// Pattern: https://bsky.app/profile/{anything}/post/{rkey}
+	pattern := regexp.MustCompile(`https://bsky\.app/profile/[^/]+/post/[a-z0-9]+`)
+	matches := pattern.FindString(text)
+	return matches
+}
+
+// extractRKeyFromURL extracts the post ID (RKey) from a Bluesky URL
+// URL format: https://bsky.app/profile/{handle}/post/{rkey}
+func extractRKeyFromURL(url string) string {
+	// Get the last part after /post/
+	parts := strings.Split(url, "/post/")
+	if len(parts) < 2 {
+		return ""
+	}
+	return parts[len(parts)-1]
+}
+
+// formatPostResponse creates a formatted response message
+func formatPostResponse(post *bsky.Post, postURL string) string {
+	if post == nil {
+		return "❌ Invalid post data"
+	}
+
+	return `Post found\!`
+}
+
+// escapeMarkdown escapes special markdown characters for Telegram MarkdownV2
+func escapeMarkdown(text string) string {
+	// Order matters: escape backslash first to avoid double-escaping
+	// Telegram MarkdownV2 requires these characters to be escaped:
+	replacements := []struct {
+		old, new string
+	}{
+		{`\`, `\\`}, // backslash must be first
+		{`_`, `\_`}, // underscore (italic)
+		{`*`, `\*`}, // asterisk (bold)
+		{`[`, `\[`}, // bracket (link)
+		{`]`, `\]`}, // bracket (link)
+		{`(`, `\(`}, // parenthesis (link)
+		{`)`, `\)`}, // parenthesis (link)
+		{`~`, `\~`}, // tilde (strikethrough)
+		{"`", "`"},  // backtick (inline code)
+		{`>`, `\>`}, // greater-than (blockquote)
+		{`#`, `\#`}, // hash (heading)
+		{`+`, `\+`}, // plus (list)
+		{`-`, `\-`}, // minus (list)
+		{`.`, `\.`}, // period (ordered list)
+		{`!`, `\!`}, // exclamation (image)
+	}
+
+	result := text
+	for _, replacement := range replacements {
+		result = strings.ReplaceAll(result, replacement.old, replacement.new)
+	}
+
+	return result
+}
+
+// sendMessage sends a message to a user
+func (h *handler) sendMessage(chatID int64, text string) error {
+	msg := tgbotapi.NewMessage(chatID, text)
+	msg.ParseMode = tgbotapi.ModeMarkdownV2
+
+	_, err := h.tg.Send(msg)
+	return err
+}
+
+// sendMessageWithButtons sends a message with action buttons for the post
+func (h *handler) sendMessageWithButtons(chatID int64, text, rkey, postURL string, channelID int64, messageID int) error {
+	msg := tgbotapi.NewMessage(chatID, text)
+	msg.LinkPreviewOptions = tgbotapi.LinkPreviewOptions{
+		URL:              fmt.Sprintf(embedURL, h.bsky.Bluesky.Cfg.DID, rkey),
+		PreferSmallMedia: true,
+		ShowAboveText:    true,
+	}
+	msg.ParseMode = tgbotapi.ModeMarkdownV2
+
+	viewChannel := tgbotapi.NewInlineKeyboardButtonURL(
+		"📍 View in Channel",
+		fmt.Sprintf("tg://privatepost?channel=%d&post=%d", -channelID-1000000000000, messageID),
+	)
+	viewBsky := tgbotapi.NewInlineKeyboardButtonURL(
+		"🦋 View on Bluesky",
+		postURL,
+	)
+	deleteTG := tgbotapi.NewInlineKeyboardButtonData("🗑 Delete from Channel", "del_tg:"+rkey)
+	deleteBsky := tgbotapi.NewInlineKeyboardButtonData("❌ Delete from Bluesky", "del_bsky:"+rkey)
+	closeBtn := tgbotapi.NewInlineKeyboardButtonData("✖ Close", "close")
+
+	msg.ReplyMarkup = tgbotapi.NewInlineKeyboardMarkup(
+		tgbotapi.NewInlineKeyboardRow(viewChannel, viewBsky),
+		tgbotapi.NewInlineKeyboardRow(deleteTG, deleteBsky),
+		tgbotapi.NewInlineKeyboardRow(closeBtn),
+	)
+
+	_, err := h.tg.Send(msg)
+	return err
+}
+
+// HandleCallbackQuery processes inline button presses
+func (h *handler) HandleCallbackQuery(query *tgbotapi.CallbackQuery) {
+	answer := func(text string) {
+		h.tg.Send(tgbotapi.NewCallback(query.ID, text))
+	}
+
+	editDone := func(text string) {
+		if query.Message == nil {
+			return
+		}
+		edit := tgbotapi.NewEditMessageText(query.Message.Chat.ID, query.Message.MessageID, text)
+		edit.ParseMode = tgbotapi.ModeMarkdownV2
+		edit.LinkPreviewOptions = tgbotapi.LinkPreviewOptions{IsDisabled: true}
+		emptyKb := tgbotapi.NewInlineKeyboardMarkup()
+		edit.ReplyMarkup = &emptyKb
+		h.tg.Send(edit)
+	}
+
+	if !h.isUserAdmin(query.From.ID) {
+		answer("⛔ Admins only")
+		return
+	}
+
+	data := query.Data
+	switch {
+	case data == "close":
+		if query.Message != nil {
+			h.tg.Send(tgbotapi.NewDeleteMessage(query.Message.Chat.ID, query.Message.MessageID))
+		}
+		answer("")
+
+	case strings.HasPrefix(data, "del_tg:"):
+		rkey := strings.TrimPrefix(data, "del_tg:")
+		rec, err := h.bsky.Bluesky.GetTelegramData(rkey)
+		if err != "" {
+			answer("❌ Post not found in channel records")
+			return
+		}
+		m := tgbotapi.NewDeleteMessages(rec.ChannelID, rec.MessageID)
+		if _, e := h.tg.Send(m); e != nil {
+			answer("❌ Failed to delete: " + e.Error())
+			return
+		}
+		h.bsky.Bluesky.DeleteRecord([]string{rkey, h.bsky.Bluesky.Cfg.DID, bsky.PostCollection})
+		answer("🗑 Deleted from channel")
+		editDone("🗑 *Deleted from Telegram channel*")
+
+	case strings.HasPrefix(data, "del_bsky:"):
+		rkey := strings.TrimPrefix(data, "del_bsky:")
+		h.bsky.Bluesky.DeleteRecord([]string{rkey, h.bsky.Bluesky.Cfg.DID, "app.bsky.feed.post"})
+		answer("❌ Deleted from Bluesky")
+		editDone("❌ *Deleted from Bluesky*")
+
+	default:
+		answer("")
+	}
+}
+
+// LoadChannelAdmins fetches the list of channel admins from Telegram
+func (h *handler) LoadChannelAdmins() error {
+	// Get channel admins
+	cid, _ := strconv.ParseInt(os.Getenv("TG_CHANNEL_ID"), 10, 64)
+	admins, err := h.tg.GetChatAdministrators(
+		tgbotapi.ChatAdministratorsConfig{
+			ChatConfig: tgbotapi.ChatConfig{
+				ChatID: cid,
+			},
+		},
+	)
+	if err != nil {
+		return fmt.Errorf("failed to get channel admins: %w", err)
+	}
+
+	// Store admin IDs in the map
+	for _, admin := range admins {
+		if admin.User != nil {
+			h.channelAdmins[admin.User.ID] = true
+		}
+	}
+
+	count := len(h.channelAdmins)
+	fmt.Printf("Loaded %d channel admins\n", count)
+	return nil
+}
+
+// isUserAdmin checks if a user ID is a channel admin
+func (h *handler) isUserAdmin(userID int64) bool {
+	return h.channelAdmins[userID]
+}

bot_listener.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"log"
+	"os"
+	"strconv"
+
+	tgbotapi "github.com/OvyFlash/telegram-bot-api"
+)
+
+// StartBotListener starts listening for Telegram bot messages
+func (h *handler) StartBotListener() {
+	// Load channel admins
+	err := h.LoadChannelAdmins()
+	if err != nil {
+		log.Printf("Warning: Could not load channel admins: %v", err)
+	}
+
+	u := tgbotapi.NewUpdate(0)
+	u.Timeout = 60
+
+	updates := h.tg.GetUpdatesChan(u)
+
+	channelID, _ := strconv.ParseInt(os.Getenv("TG_CHANNEL_ID"), 10, 64)
+	channelName := os.Getenv("TG_CHANNEL_ID")
+	if chat, err := h.tg.GetChat(tgbotapi.ChatInfoConfig{ChatConfig: tgbotapi.ChatConfig{ChatID: channelID}}); err == nil {
+		channelName = chat.Title
+	}
+	log.Printf("Bot listener started: @%s (Telegram bot) | @%s (Bluesky) | channel %s",
+		h.tg.Self.UserName,
+		h.bsky.Bluesky.Cfg.Handle,
+		channelName,
+	)
+
+	for update := range updates {
+		if update.CallbackQuery != nil {
+			h.HandleCallbackQuery(update.CallbackQuery)
+			continue
+		}
+
+		if update.Message == nil {
+			continue
+		}
+
+		message := update.Message
+
+		if message.Text != "" || message.Caption != "" {
+			if err := h.HandleBotMessage(message); err != nil {
+				log.Printf("Error handling message: %v", err)
+				h.sendMessage(message.Chat.ID, "❌ Error processing message")
+			}
+		}
+	}
+}

main.go

@@ -40,12 +40,14 @@ type handler struct {
 	seenSeqs      map[int64]struct{}
 	tg            *tgbotapi.BotAPI
 	bsky          *bsky.BSky
+	channelAdmins map[int64]bool
 }
 
 var (
 	post         = flag.String("post", "", "URL to a BlueSky post")
 	delete       = flag.Bool("delete", false, "true/false to delete post")
 	oldPosts     = flag.Float64("oldposttime", 1, "Ignore posts if createdAt more than this many hours ago")
+	botOnly      = flag.Bool("bot", false, "Run only the Telegram bot listener, without Jetstream sync")
 )
 
 func main() {
@@ -62,6 +64,7 @@ func main() {
 	h := &handler{
 		seenSeqs:      make(map[int64]struct{}),
 		bsky:          bskyClient,
+		channelAdmins: make(map[int64]bool),
 	}
 
 	endpoint := "https://api.telegram.org/bot%s/%s"
@@ -126,6 +129,13 @@ func main() {
 		return
 	}
 
+	if *botOnly {
+		h.StartBotListener()
+		return
+	}
+
+	go h.StartBotListener()
+
 	ctx := context.Background()
 	slog.SetDefault(slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
 		Level: slog.LevelDebug.Level(),