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Use Telegram drafts for assistant streaming

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This commit is contained in:
Codex
2026-06-04 08:59:18 +00:00
parent 372d5831fa
commit 739b6cd870
2 changed files with 176 additions and 21 deletions
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174
internal/telegram/bot.go
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@@ -24,6 +24,8 @@ import (
const (
telegramDownloadLimit = 20 * 1024 * 1024
resumeThreadPageSize = 8
assistantStreamEditInterval = 1200 * time.Millisecond
assistantStreamInitialRunes = 24
telegramPhotoDirectiveStart = "<!-- telegram-photo "
telegramThreadRenameDirectiveStart = "<!-- codex-thread-rename "
telegramThreadCWDDirectiveStart = "<!-- codex-thread-cwd "
@@ -76,12 +78,19 @@ type outputState struct {
assistant strings.Builder
sentAny bool
pictureRequest bool
assistantStream assistantStreamState
tools map[string]toolMessageState
sentImages map[string]bool
generatedImages []generatedImageOutput
workingIndicatorOff context.CancelFunc
}
type assistantStreamState struct {
draftID int64
text string
sentAt time.Time
}
type generatedImageOutput struct {
Path string
}
@@ -1246,6 +1255,9 @@ func (b *Bot) handleApprovalCallback(ctx context.Context, callback *CallbackQuer
if err := b.store.ResolvePendingApproval(ctx, callback.From.ID, approval.ID, decision); err != nil {
return err
}
if decisionApproves(decision) {
b.resumeWorkingIndicator(approval.CodexThreadID)
}
if err := b.tg.AnswerCallbackQuery(ctx, callback.ID, "Sent to Codex."); err != nil {
return err
}
@@ -1254,6 +1266,18 @@ func (b *Bot) handleApprovalCallback(ctx context.Context, callback *CallbackQuer
return ignoreTelegramMessageNotModified(err)
}
func decisionApproves(decision string) bool {
if strings.HasPrefix(decision, "networkPolicy") {
return true
}
switch decision {
case "accept", "acceptForSession", "acceptWithExecpolicyAmendment":
return true
default:
return false
}
}
func (b *Bot) handleCodexEvents(ctx context.Context) {
for {
select {
@@ -1935,6 +1959,7 @@ func (b *Bot) handleCodexServerRequest(ctx context.Context, event codexapp.Event
if err != nil {
return err
}
b.pauseWorkingIndicator(threadID)
b.logger.Printf("codex approval telegram sent: request=%s approval_id=%d chat=%d message=%d", event.ID.Key(), approval.ID, msg.Chat.ID, msg.MessageID)
return b.store.UpdatePendingApprovalMessage(ctx, approval.ID, msg.Chat.ID, msg.MessageID)
}
@@ -2029,42 +2054,48 @@ func (b *Bot) clearOutput(threadID string) {
}
}
func (b *Bot) pauseWorkingIndicator(threadID string) {
b.mu.Lock()
state := b.outputs[threadID]
if state == nil || state.workingIndicatorOff == nil {
b.mu.Unlock()
return
}
cancel := state.workingIndicatorOff
state.workingIndicatorOff = nil
b.mu.Unlock()
cancel()
}
func (b *Bot) resumeWorkingIndicator(threadID string) {
b.mu.Lock()
state := b.outputs[threadID]
if state == nil || state.workingIndicatorOff != nil {
b.mu.Unlock()
return
}
state.workingIndicatorOff = b.startWorkingIndicator(state.chatID)
b.mu.Unlock()
}
func (b *Bot) startWorkingIndicator(chatID int64) context.CancelFunc {
ctx, cancel := context.WithCancel(context.Background())
draftID := time.Now().UnixNano()
go func() {
useDraft := true
sendDraft := func() bool {
return b.tg.SendMessageDraft(ctx, chatID, draftID, "") == nil
}
sendTyping := func() {
if err := b.tg.SendChatAction(ctx, chatID, "typing"); err != nil && ctx.Err() == nil {
b.logger.Printf("send typing action: %v", err)
}
}
if !sendDraft() {
useDraft = false
sendTyping()
}
draftTicker := time.NewTicker(25 * time.Second)
sendTyping()
typingTicker := time.NewTicker(4 * time.Second)
defer draftTicker.Stop()
defer typingTicker.Stop()
for {
select {
case <-ctx.Done():
return
case <-draftTicker.C:
if useDraft && !sendDraft() {
useDraft = false
sendTyping()
}
case <-typingTicker.C:
if !useDraft {
sendTyping()
}
sendTyping()
}
}
}()
@@ -2723,6 +2754,100 @@ func truncateTelegramPhotoCaption(caption string) string {
return string(runes[:telegramPhotoCaptionLimit-3]) + "..."
}
func assistantStreamPreview(text string) string {
var visible strings.Builder
for _, line := range strings.SplitAfter(text, "\n") {
body := strings.TrimSuffix(strings.TrimSuffix(line, "\n"), "\r")
trimmed := strings.TrimSpace(body)
if isAssistantDirectiveStart(trimmed) {
continue
}
visible.WriteString(line)
}
return visible.String()
}
func isAssistantDirectiveStart(line string) bool {
return strings.HasPrefix(line, telegramPhotoDirectiveStart) ||
strings.HasPrefix(line, strings.TrimSpace(telegramPhotoDirectiveStart)) ||
strings.HasPrefix(line, telegramThreadRenameDirectiveStart) ||
strings.HasPrefix(line, strings.TrimSpace(telegramThreadRenameDirectiveStart)) ||
strings.HasPrefix(line, telegramThreadCWDDirectiveStart) ||
strings.HasPrefix(line, strings.TrimSpace(telegramThreadCWDDirectiveStart))
}
func assistantStreamText(preview string) string {
preview = strings.TrimSpace(preview)
if preview == "" {
return ""
}
const suffix = "\n..."
runes := []rune(preview)
if len(runes) <= TelegramMessageLimit {
return preview
}
limit := TelegramMessageLimit - len([]rune(suffix))
if limit < 0 {
limit = TelegramMessageLimit
}
return strings.TrimRight(string(runes[:limit]), "\n") + suffix
}
func assistantStreamReady(preview string) bool {
if strings.Contains(preview, "\n") {
return true
}
return len([]rune(strings.TrimSpace(preview))) >= assistantStreamInitialRunes
}
func (b *Bot) updateAssistantStream(ctx context.Context, threadID string, force bool) error {
b.mu.Lock()
state := b.outputs[threadID]
if state == nil || state.pictureRequest || state.assistant.Len() == 0 {
b.mu.Unlock()
return nil
}
preview := assistantStreamPreview(state.assistant.String())
if strings.TrimSpace(preview) == "" {
b.mu.Unlock()
return nil
}
if state.assistantStream.draftID == 0 && !force && !assistantStreamReady(preview) {
b.mu.Unlock()
return nil
}
draftText := assistantStreamText(preview)
if draftText == "" || draftText == state.assistantStream.text {
b.mu.Unlock()
return nil
}
stream := state.assistantStream
chatID := state.chatID
now := time.Now()
if stream.draftID != 0 && !force && now.Sub(stream.sentAt) < assistantStreamEditInterval {
b.mu.Unlock()
return nil
}
if stream.draftID == 0 {
stream.draftID = now.UnixNano()
if stream.draftID == 0 {
stream.draftID = 1
}
}
b.mu.Unlock()
if err := b.tg.SendMessageDraft(ctx, chatID, stream.draftID, draftText); err != nil {
b.logger.Printf("send assistant draft: %v", err)
return nil
}
b.mu.Lock()
if state := b.outputs[threadID]; state != nil && (state.assistantStream.draftID == 0 || state.assistantStream.draftID == stream.draftID) {
state.assistantStream = assistantStreamState{draftID: stream.draftID, text: draftText, sentAt: now}
}
b.mu.Unlock()
return nil
}
func (b *Bot) appendAssistantDelta(ctx context.Context, threadID, delta string) error {
if delta == "" {
return nil
@@ -2736,7 +2861,7 @@ func (b *Bot) appendAssistantDelta(ctx context.Context, threadID, delta string)
_, _ = state.assistant.WriteString(delta)
}
b.mu.Unlock()
return nil
return b.updateAssistantStream(ctx, threadID, false)
}
func (b *Bot) flushAssistantMessage(ctx context.Context, threadID string) error {
@@ -2749,12 +2874,19 @@ func (b *Bot) flushAssistantMessage(ctx context.Context, threadID string) error
chatID := state.chatID
text := state.assistant.String()
pictureRequest := state.pictureRequest
stream := state.assistantStream
state.assistant.Reset()
state.assistantStream = assistantStreamState{}
b.mu.Unlock()
if pictureRequest {
return nil
}
if stream.draftID != 0 {
if err := b.tg.SendMessageDraft(ctx, chatID, stream.draftID, ""); err != nil {
b.logger.Printf("clear assistant draft: %v", err)
}
}
if err := b.sendAssistantText(ctx, threadID, chatID, text); err != nil {
return err
}