59 lines
2.5 KiB
TypeScript
59 lines
2.5 KiB
TypeScript
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/**
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* THE SILENT DISMISSAL ROUTE (owner design 2026-10-03, "A2"): ESC-abort
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* from a pending question writes the dismissed toolResult to the record
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* and wakes NOTHING — no beginTurn, no agent, no tokens. The session
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* enters the derived dismissal pause (endsInDismissal): job deliveries
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* hold in the wake pipeline's steer queue, the continuation fold demands
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* nothing, and the user's next plain message is the wake that carries
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* the dismissal (plus any held deliveries) into the agent's context.
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*
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* Parallel question calls: each dismissal completes exactly its own call
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* (results bind by toolCallId, not position), so the dock advances
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* call-by-call and the composer returns only when nothing dangles.
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*
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* Guards mirror the turn route's honesty: 404 unknown chat, 400 for an
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* input that targets no dangling question call (or isn't a real
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* dismissal), 409 when a turn is somehow running — the dismissing client
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* heals via the record-changed sync, same as any raced settle.
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*/
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import { ChatInputError, dismissAppends, emit, parseDismissInput } from "@/src/core";
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import { getChat, isTurnRunning, stores } from "@/src/server";
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export async function POST(req: Request, ctx: { params: Promise<{ id: string }> }): Promise<Response> {
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const { id } = await ctx.params;
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const chat = getChat(id);
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if (!chat) return Response.json({ error: "Unknown chat" }, { status: 404 });
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let input;
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try {
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// The POST-family convention: the body is { input } (chatId lives in
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// the URL here).
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const body = (await req.json().catch(() => null)) as { input?: unknown } | null;
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input = parseDismissInput(body?.input ?? null);
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} catch (err) {
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if (err instanceof ChatInputError) return Response.json({ error: err.message }, { status: 400 });
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throw err;
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}
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// A dismissal can only target a settled question (question tools end
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// their turn) — a running turn means something raced; refuse, never
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// append around a live turn's own persist.
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if (isTurnRunning(id)) {
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return Response.json({ error: "A turn is running for this session" }, { status: 409 });
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}
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let appends;
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try {
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appends = dismissAppends(chat, input);
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} catch (err) {
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if (err instanceof ChatInputError) return Response.json({ error: err.message }, { status: 400 });
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throw err;
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}
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// Write-ahead, turn-less: the record is the only state that moves.
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const merged = [...chat.messages, ...appends];
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stores.chatStore.saveMessages(id, merged);
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emit("record-changed", { chatId: id });
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return Response.json({ ok: true });
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}
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