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Improve Telegram draft preview startup #13

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42 changes: 38 additions & 4 deletions index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -480,6 +480,26 @@ export default function (pi: ExtensionAPI) {
state.lastSentText = truncated;
}

async function openEmptyDraftPreview(chatId: number): Promise<void> {
if (draftSupport === "unsupported") return;
if (!previewState) {
previewState = { mode: "draft", pendingText: "", lastSentText: "" };
}
const state = previewState;
const draftId = state.draftId ?? allocateDraftId();
state.draftId = draftId;
try {
await callTelegram("sendMessageDraft", { chat_id: chatId, draft_id: draftId, text: "" });
draftSupport = "supported";
state.mode = "draft";
state.pendingText = "";
state.lastSentText = "";
} catch {
draftSupport = "unsupported";
state.mode = "message";
}
}

function schedulePreviewFlush(chatId: number): void {
if (!previewState || previewState.flushTimer) return;
previewState.flushTimer = setTimeout(() => {
Expand All @@ -497,8 +517,12 @@ export default function (pi: ExtensionAPI) {
return false;
}
if (state.mode === "draft") {
if (state.flushTimer) {
clearTimeout(state.flushTimer);
state.flushTimer = undefined;
}
previewState = undefined;
await callTelegram<TelegramSentMessage>("sendMessage", { chat_id: chatId, text: finalText });
await clearPreview(chatId);
return true;
}
previewState = undefined;
Expand Down Expand Up @@ -1057,6 +1081,7 @@ export default function (pi: ExtensionAPI) {
if (nextTurn) {
activeTelegramTurn = { ...nextTurn };
previewState = { mode: draftSupport === "unsupported" ? "message" : "draft", pendingText: "", lastSentText: "" };
await openEmptyDraftPreview(activeTelegramTurn.chatId);
startTypingLoop(ctx);
}
}
Expand All @@ -1067,8 +1092,12 @@ export default function (pi: ExtensionAPI) {
if (!activeTelegramTurn || !isAssistantMessage(event.message)) return;
if (previewState && (previewState.pendingText.trim().length > 0 || previewState.lastSentText.trim().length > 0)) {
await finalizePreview(activeTelegramTurn.chatId);
previewState = { mode: draftSupport === "unsupported" ? "message" : "draft", pendingText: "", lastSentText: "" };
}
if (!previewState) {
previewState = { mode: draftSupport === "unsupported" ? "message" : "draft", pendingText: "", lastSentText: "" };
await openEmptyDraftPreview(activeTelegramTurn.chatId);
}
previewState = { mode: draftSupport === "unsupported" ? "message" : "draft", pendingText: "", lastSentText: "" };
});

pi.on("message_update", async (event, _ctx) => {
Expand All @@ -1083,19 +1112,23 @@ export default function (pi: ExtensionAPI) {
pi.on("agent_end", async (event, ctx) => {
const turn = activeTelegramTurn;
currentAbort = undefined;
stopTypingLoop();
activeTelegramTurn = undefined;
updateStatus(ctx);
if (!turn) return;
if (!turn) {
stopTypingLoop();
return;
}

const assistant = extractAssistantText(event.messages);
if (assistant.stopReason === "aborted") {
await clearPreview(turn.chatId);
stopTypingLoop();
return;
}
if (assistant.stopReason === "error") {
await clearPreview(turn.chatId);
await sendTextReply(turn.chatId, turn.replyToMessageId, assistant.errorMessage || "Telegram bridge: pi failed while processing the request.");
stopTypingLoop();
return;
}

Expand All @@ -1118,6 +1151,7 @@ export default function (pi: ExtensionAPI) {
}
}

stopTypingLoop();
await sendQueuedAttachments(turn);

if (queuedTelegramTurns.length > 0 && !preserveQueuedTurnsAsHistory) {
Expand Down