refactor
This commit is contained in:
Artem Tsyrulnikov
371
tg_bot/bot/bot.go
Normal file
371
tg_bot/bot/bot.go
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@@ -0,0 +1,371 @@
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package bot
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import (
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"context"
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"encoding/json"
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"fmt"
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"strings"
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"sync"
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"github.com/NicoNex/echotron/v3"
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"github.com/TelegramExchange/tgex-backend/tg_bot/backend"
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"github.com/rs/zerolog/log"
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)
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var emptyKeyboard = echotron.InlineKeyboardMarkup{
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InlineKeyboard: [][]echotron.InlineKeyboardButton{},
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}
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type Exec struct {
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handled bool
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transitioned bool
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}
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type Bot struct {
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echotron.API
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mu sync.Mutex
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ChatID int64
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exec *Exec
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CurrentState State
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Session *Session
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LastMessageID int // ID последнего сообщения с inline кнопками
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commandRouter func(cmd string) State // Роутер для команд (например, /start, /help)
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globalCallbackRouter func(callbackData string) State // Роутер для глобальных callbacks из уведомлений
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Backend *backend.Client
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}
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func NewBot(chatID int64, token string, commandRouter func(string) State, backendClient *backend.Client, globalCallbackRouter func(string) State) *Bot {
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if commandRouter == nil {
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panic("bot: commandRouter cannot be nil")
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}
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if globalCallbackRouter == nil {
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panic("bot: globalCallbackRouter cannot be nil")
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}
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if commandRouter("/start") == nil {
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panic("bot: commandRouter requires /start state answer")
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}
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if backendClient == nil {
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panic("bot: backendClient cannot be nil")
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}
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return &Bot{
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ChatID: chatID,
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API: echotron.NewAPI(token),
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Session: &Session{},
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commandRouter: commandRouter,
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Backend: backendClient,
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globalCallbackRouter: globalCallbackRouter,
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}
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}
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// GetOrCreateJWT получает JWT токен, передавая актуальные данные пользователя из update
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func (b *Bot) GetOrCreateJWT(u *echotron.Update) error {
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// Извлекаем данные пользователя из update
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var user *echotron.User
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if u.Message != nil && u.Message.From != nil {
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user = u.Message.From
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} else if u.CallbackQuery != nil && u.CallbackQuery.From != nil {
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user = u.CallbackQuery.From
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}
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var username, firstName, lastName *string
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if user != nil {
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if user.Username != "" {
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username = &user.Username
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}
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if user.FirstName != "" {
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firstName = &user.FirstName
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}
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if user.LastName != "" {
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lastName = &user.LastName
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}
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}
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jwt, err := b.Backend.GetJWTByTelegramUser(context.Background(), b.ChatID, username, firstName, lastName)
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if err != nil {
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return err
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}
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b.Session.JWT = jwt
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if firstName != nil {
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b.Session.FirstName = *firstName
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}
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return nil
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}
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func (b *Bot) SetState(s State, mode RenderMode) {
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log.Info().
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Int64("chat_id", b.ChatID).
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Str("from_state", fmt.Sprintf("%T", b.CurrentState)).
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Str("to_state", fmt.Sprintf("%T", s)).
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Str("mode", fmt.Sprintf("%v", mode)).
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Msg("State transition")
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// Вызываем Exit() у старого состояния для cleanup (например, отмены горутин)
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if b.CurrentState != nil {
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b.CurrentState.Exit()
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}
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b.CurrentState = s
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if b.exec != nil {
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b.exec.transitioned = true
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b.exec.handled = true
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}
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s.Enter(b, mode)
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}
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func (b *Bot) Render(text string, keyboard echotron.InlineKeyboardMarkup, mode RenderMode) {
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if mode == EditMessage {
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b.Edit(text, keyboard)
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} else {
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b.SendNew(text, keyboard)
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}
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}
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func (b *Bot) DownloadFileBytes(fileID string) ([]byte, error) {
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res, err := b.GetFile(fileID)
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if err != nil {
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return nil, err
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}
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if res.Result == nil || res.Result.FilePath == "" {
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return nil, fmt.Errorf("telegram file not available")
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}
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return b.DownloadFile(res.Result.FilePath)
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}
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func (b *Bot) SendNew(text string, keyboard echotron.InlineKeyboardMarkup) {
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// Удаляем кнопки у предыдущего сообщения перед отправкой нового
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if b.LastMessageID != 0 {
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log.Info().Int("cleanup_msg_id", b.LastMessageID).Msg("Cleaning up keyboard before SendNew")
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b.cleanupKeyboard(b.LastMessageID)
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}
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res, err := b.SendMessage(text, b.ChatID, &echotron.MessageOptions{
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ReplyMarkup: keyboard,
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ParseMode: echotron.HTML,
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})
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if b.exec != nil {
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b.exec.handled = true
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}
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if err != nil {
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log.Error().Err(err).Msg("SendMessage failed")
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return
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}
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if res.Result != nil {
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b.LastMessageID = res.Result.ID
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log.Info().Int("new_last_msg_id", b.LastMessageID).Msg("Updated LastMessageID in SendNew")
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}
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}
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func (b *Bot) Edit(text string, keyboard echotron.InlineKeyboardMarkup) {
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if b.LastMessageID != 0 {
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log.Info().
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Int("last_msg_id", b.LastMessageID).
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Int("keyboard_rows", len(keyboard.InlineKeyboard)).
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Int("text_len", len(text)).
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Msg("EditMessageText request")
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_, err := b.EditMessageText(
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text,
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echotron.NewMessageID(b.ChatID, b.LastMessageID),
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&echotron.MessageTextOptions{
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ReplyMarkup: keyboard,
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ParseMode: echotron.HTML,
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},
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)
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if err != nil {
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if strings.Contains(err.Error(), "message is not modified") {
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log.Info().Msg("EditMessageText ignored: message is not modified")
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if b.exec != nil {
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b.exec.handled = true
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}
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return
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}
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log.Error().Err(err).Msg("EditMessageText")
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}
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} else {
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b.SendNew(text, keyboard)
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}
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if b.exec != nil {
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b.exec.handled = true
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}
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}
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func (b *Bot) SendMessageWithURLButton(text, buttonText, url string) {
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keyboard := echotron.InlineKeyboardMarkup{
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InlineKeyboard: [][]echotron.InlineKeyboardButton{
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{
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{
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Text: buttonText,
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URL: url,
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},
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},
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},
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}
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res, err := b.SendMessage(text, b.ChatID, &echotron.MessageOptions{
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ReplyMarkup: keyboard,
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})
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if err != nil {
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log.Error().Err(err).Msg("SendMessageWithURLButton")
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}
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if b.exec != nil {
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b.exec.handled = true
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}
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if err == nil && res.Result != nil {
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b.LastMessageID = res.Result.ID
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}
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}
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func (b *Bot) Update(u *echotron.Update) {
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b.mu.Lock()
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defer b.mu.Unlock()
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log.Info().
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Int64("chat_id", b.ChatID).
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Str("current_state", fmt.Sprintf("%T", b.CurrentState)).
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Bool("has_callback", u.CallbackQuery != nil).
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Bool("has_message", u.Message != nil).
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Bool("has_edited_message", u.EditedMessage != nil).
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Msg("Update received")
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// 1. Системные события (ChatJoinRequest, ChatMember, etc.) -> форвардим асинхронно
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if u.ChatJoinRequest != nil || u.ChatMember != nil || u.MyChatMember != nil {
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go func() {
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ctx := context.Background()
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raw, err := json.Marshal(u)
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if err != nil {
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log.Error().RawJSON("update", raw).Msg("Failed to marshal update")
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}
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err = b.Backend.ForwardTelegramUpdate(ctx, u)
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if err != nil {
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log.Error().Err(err).Msg("Failed to forward system event to backend")
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return
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}
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log.Info().Msg("System event forwarded to backend")
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}()
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return
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}
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// 2. Игнорируем события не из private чатов
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chatType := ""
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switch {
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case u.Message != nil:
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chatType = u.Message.Chat.Type
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case u.CallbackQuery != nil && u.CallbackQuery.Message != nil:
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chatType = u.CallbackQuery.Message.Chat.Type
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case u.EditedMessage != nil:
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chatType = u.EditedMessage.Chat.Type
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case u.ChannelPost != nil || u.EditedChannelPost != nil:
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return // Каналы игнорируем сразу
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}
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if chatType != "" && chatType != "private" {
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log.Debug().Str("chat_type", chatType).Msg("Ignoring non-private chat")
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return
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}
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// 3. Игнорируем edited messages
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if u.EditedMessage != nil || u.EditedChannelPost != nil || u.EditedBusinessMessage != nil {
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log.Debug().Msg("Ignoring edited message")
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return
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}
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err := b.GetOrCreateJWT(u)
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if err != nil || b.Session.JWT == "" {
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b.SendNew("❌ Ошибка авторизации. Попробуйте /start", emptyKeyboard)
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return
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}
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exec := &Exec{}
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b.exec = exec
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defer func() { b.exec = nil }()
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if b.CurrentState == nil {
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b.CurrentState = b.commandRouter("/start")
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}
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// === Обработка входящего события ===
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// 1. Команды (приоритетный маршрут)
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if u.Message != nil {
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switch u.Message.Text {
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case "/start":
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b.SetState(b.commandRouter("/start"), NewMessage)
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return
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case "/start login":
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b.SetState(b.commandRouter("/start login"), NewMessage)
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return
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default:
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b.CurrentState.HandleMessage(b, u)
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if exec.handled || exec.transitioned {
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return
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}
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}
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}
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// 2. Callback запросы
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if u.CallbackQuery != nil {
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b.cleanupCallbackUI(u)
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if u.CallbackQuery.Data == "empty" {
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return
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}
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// Глобальные callbacks (из уведомлений)
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if newState := b.globalCallbackRouter(u.CallbackQuery.Data); newState != nil {
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b.SetState(newState, NewMessage)
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return
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}
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b.CurrentState.HandleCallback(b, u)
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if exec.handled || exec.transitioned {
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return
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}
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}
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// 3. Универсальный обработчик состояния (если ничего не подошло)
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b.CurrentState.Handle(b, u)
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if exec.handled || exec.transitioned {
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return
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}
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// 4. Fallback - сброс в начальное состояние
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b.SetState(b.commandRouter("/start"), NewMessage)
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}
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func (b *Bot) cleanupKeyboard(messageID int) {
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_, err := b.EditMessageReplyMarkup(
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echotron.NewMessageID(b.ChatID, messageID),
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&echotron.MessageReplyMarkupOptions{ReplyMarkup: emptyKeyboard},
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)
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if err != nil {
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log.Error().Err(err).Int("message_id", messageID).Msg("Failed to remove keyboard")
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}
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}
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func (b *Bot) cleanupCallbackUI(u *echotron.Update) {
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_, err := b.AnswerCallbackQuery(u.CallbackQuery.ID, nil)
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if err != nil {
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log.Error().Err(err).Msg("b.AnswerCallbackQuery error")
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}
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if u.CallbackQuery.Message != nil {
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callbackMessageID := u.CallbackQuery.Message.ID
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// Если это сообщение последнее, не удаляем клавиатуру
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if b.LastMessageID == callbackMessageID {
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return
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}
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b.cleanupKeyboard(callbackMessageID)
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}
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}
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23
tg_bot/bot/state.go
Normal file
23
tg_bot/bot/state.go
Normal file
@@ -0,0 +1,23 @@
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package bot
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import "github.com/NicoNex/echotron/v3"
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type RenderMode int
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const (
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NewMessage RenderMode = iota
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EditMessage
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)
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type State interface {
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Enter(*Bot, RenderMode)
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HandleCallback(*Bot, *echotron.Update)
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HandleMessage(*Bot, *echotron.Update)
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Handle(*Bot, *echotron.Update)
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Exit() // Вызывается при выходе из состояния для cleanup (например, отмены горутин)
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}
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type Session struct {
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FirstName string
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JWT string
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}
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Reference in New Issue
Block a user