telegram-ollama-reply-bot/bot/bot.go
2024-10-28 01:55:17 +03:00

310 lines
7 KiB
Go

package bot
import (
"errors"
"github.com/mymmrac/telego"
th "github.com/mymmrac/telego/telegohandler"
tu "github.com/mymmrac/telego/telegoutil"
"log/slog"
"strings"
"telegram-ollama-reply-bot/extractor"
"telegram-ollama-reply-bot/llm"
"telegram-ollama-reply-bot/stats"
)
var (
ErrGetMe = errors.New("cannot retrieve api user")
ErrUpdatesChannel = errors.New("cannot get updates channel")
ErrHandlerInit = errors.New("cannot initialize handler")
)
type BotInfo struct {
Id int64
Username string
Name string
}
type Bot struct {
api *telego.Bot
llm *llm.LlmConnector
extractor *extractor.Extractor
stats *stats.Stats
models ModelSelection
history map[int64]*MessageRingBuffer
profile BotInfo
markdownV1Replacer *strings.Replacer
}
func NewBot(
api *telego.Bot,
llm *llm.LlmConnector,
extractor *extractor.Extractor,
models ModelSelection,
) *Bot {
return &Bot{
api: api,
llm: llm,
extractor: extractor,
stats: stats.NewStats(),
models: models,
history: make(map[int64]*MessageRingBuffer),
profile: BotInfo{0, "", ""},
markdownV1Replacer: strings.NewReplacer(
// https://core.telegram.org/bots/api#markdown-style
"_", "\\_",
//"*", "\\*",
//"`", "\\`",
//"[", "\\[",
),
}
}
func (b *Bot) Run() error {
botUser, err := b.api.GetMe()
if err != nil {
slog.Error("Cannot retrieve api user", "error", err)
return ErrGetMe
}
slog.Info("Running api as", "id", botUser.ID, "username", botUser.Username, "name", botUser.FirstName, "is_bot", botUser.IsBot)
b.profile = BotInfo{
Id: botUser.ID,
Username: botUser.Username,
Name: botUser.FirstName,
}
updates, err := b.api.UpdatesViaLongPolling(nil)
if err != nil {
slog.Error("Cannot get update channel", "error", err)
return ErrUpdatesChannel
}
bh, err := th.NewBotHandler(b.api, updates)
if err != nil {
slog.Error("Cannot initialize bot handler", "error", err)
return ErrHandlerInit
}
defer bh.Stop()
defer b.api.StopLongPolling()
// Middlewares
bh.Use(b.chatHistory)
bh.Use(b.chatTypeStatsCounter)
// Command handlers
bh.Handle(b.startHandler, th.CommandEqual("start"))
bh.Handle(b.summarizeHandler, th.Or(th.CommandEqual("summarize"), th.CommandEqual("s")))
bh.Handle(b.statsHandler, th.CommandEqual("stats"))
bh.Handle(b.helpHandler, th.CommandEqual("help"))
bh.Handle(b.textMessageHandler, th.AnyMessageWithText())
bh.Start()
return nil
}
func (b *Bot) textMessageHandler(bot *telego.Bot, update telego.Update) {
slog.Debug("/any-message")
message := update.Message
switch {
// Mentions
case b.isMentionOfMe(update):
slog.Info("/any-message", "type", "mention")
b.processMention(message)
// Replies
case b.isReplyToMe(update):
slog.Info("/any-message", "type", "reply")
b.processMention(message)
// Private chat
case b.isPrivateWithMe(update):
slog.Info("/any-message", "type", "private")
b.processMention(message)
default:
slog.Debug("/any-message", "info", "Message is not mention, reply or private chat. Skipping.")
}
}
func (b *Bot) processMention(message *telego.Message) {
b.stats.Mention()
slog.Info("/mention", "chat", message.Chat.ID)
chatID := tu.ID(message.Chat.ID)
b.sendTyping(chatID)
requestContext := b.createLlmRequestContextFromMessage(message)
llmReply, err := b.llm.HandleChatMessage(message.Text, b.models.TextRequestModel, requestContext)
if err != nil {
slog.Error("Cannot get reply from LLM connector")
_, _ = b.api.SendMessage(b.reply(message, tu.Message(
chatID,
"LLM request error. Try again later.",
)))
return
}
slog.Debug("Got completion. Going to send.", "llm-completion", llmReply)
reply := tu.Message(
chatID,
b.escapeMarkdownV1Symbols(llmReply),
).WithParseMode("Markdown")
_, err = b.api.SendMessage(b.reply(message, reply))
if err != nil {
slog.Error("Can't send reply message", "error", err)
b.trySendReplyError(message)
return
}
b.saveBotReplyToHistory(message, llmReply)
}
func (b *Bot) summarizeHandler(bot *telego.Bot, update telego.Update) {
slog.Info("/summarize", "message-text", update.Message.Text)
b.stats.SummarizeRequest()
chatID := tu.ID(update.Message.Chat.ID)
b.sendTyping(chatID)
args := strings.SplitN(update.Message.Text, " ", 2)
if len(args) < 2 {
_, _ = bot.SendMessage(tu.Message(
tu.ID(update.Message.Chat.ID),
"Usage: /summarize <link>\r\n\r\n"+
"Example:\r\n"+
"/summarize https://kernel.org/get-notifications-for-your-patches.html",
))
return
}
if !isValidAndAllowedUrl(args[1]) {
slog.Error("Provided text is not a valid URL", "text", args[1])
_, _ = b.api.SendMessage(b.reply(update.Message, tu.Message(
chatID,
"URL is not valid.",
)))
return
}
article, err := b.extractor.GetArticleFromUrl(args[1])
if err != nil {
slog.Error("Cannot retrieve an article using extractor", "error", err)
}
llmReply, err := b.llm.Summarize(article.Text, b.models.SummarizeModel)
if err != nil {
slog.Error("Cannot get reply from LLM connector")
_, _ = b.api.SendMessage(b.reply(update.Message, tu.Message(
chatID,
"LLM request error. Try again later.",
)))
return
}
slog.Debug("Got completion. Going to send.", "llm-completion", llmReply)
message := tu.Message(
chatID,
b.escapeMarkdownV1Symbols(llmReply),
).WithParseMode("Markdown")
_, err = bot.SendMessage(b.reply(update.Message, message))
if err != nil {
slog.Error("Can't send reply message", "error", err)
b.trySendReplyError(update.Message)
}
}
func (b *Bot) helpHandler(bot *telego.Bot, update telego.Update) {
slog.Info("/help")
chatID := tu.ID(update.Message.Chat.ID)
b.sendTyping(chatID)
_, err := bot.SendMessage(b.reply(update.Message, tu.Messagef(
chatID,
"Instructions:\r\n"+
"/hey <text> - Ask something from LLM\r\n"+
"/summarize <link> - Summarize text from the provided link\r\n"+
"/s <link> - Shorter version\r\n"+
"/help - Show this help\r\n\r\n"+
"Mention bot or reply to it's message to communicate with it",
)))
if err != nil {
slog.Error("Cannot send a message", "error", err)
b.trySendReplyError(update.Message)
}
}
func (b *Bot) startHandler(bot *telego.Bot, update telego.Update) {
slog.Info("/start")
chatID := tu.ID(update.Message.Chat.ID)
b.sendTyping(chatID)
_, err := bot.SendMessage(b.reply(update.Message, tu.Message(
chatID,
"Hey!\r\n"+
"Check out /help to learn how to use this bot.",
)))
if err != nil {
slog.Error("Cannot send a message", "error", err)
b.trySendReplyError(update.Message)
}
}
func (b *Bot) statsHandler(bot *telego.Bot, update telego.Update) {
slog.Info("/stats")
chatID := tu.ID(update.Message.Chat.ID)
b.sendTyping(chatID)
_, err := bot.SendMessage(b.reply(update.Message, tu.Message(
chatID,
"Current bot stats:\r\n"+
"```json\r\n"+
b.stats.String()+"\r\n"+
"```",
)).WithParseMode("Markdown"))
if err != nil {
slog.Error("Cannot send a message", "error", err)
b.trySendReplyError(update.Message)
}
}
func (b *Bot) escapeMarkdownV1Symbols(input string) string {
return b.markdownV1Replacer.Replace(input)
}