53 lines
2.1 KiB
TypeScript
53 lines
2.1 KiB
TypeScript
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import { getChat, validateChatSettings, stores } from "@/src/server";
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import type { ThinkingLevel } from "@earendil-works/pi-agent-core";
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import type { ChatSettings } from "@/src/core";
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/**
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* The per-chat model control (model-control wave): replace-whole settings —
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* the picker sends the complete desired object ({} clears all overrides and
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* returns the chat to config.ts's pin). Validation is the catalog gate
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* (src/server/model-catalog.ts): unknown provider/model or an unsupported
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* thinking level is a 400 carrying the supported list, never a silent clamp
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* — the user must see what the model actually accepts. Effective next turn
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* by construction (agents are stateless per turn).
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*/
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export async function PUT(req: Request, { params }: { params: Promise<{ id: string }> }) {
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const { id } = await params;
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if (!getChat(id)) return Response.json({ error: "Not found" }, { status: 404 });
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const body = (await req.json().catch(() => null)) as
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| { model?: { provider?: unknown; id?: unknown }; thinkingLevel?: unknown }
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| null;
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if (!body || typeof body !== "object") {
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return Response.json({ error: "Invalid JSON body" }, { status: 400 });
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}
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const settings: ChatSettings = {};
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if (body.model !== undefined) {
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if (
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typeof body.model !== "object" ||
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body.model === null ||
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typeof body.model.provider !== "string" ||
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typeof body.model.id !== "string"
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) {
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return Response.json({ error: "model must be {provider, id}" }, { status: 400 });
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}
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settings.model = { provider: body.model.provider, id: body.model.id };
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}
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if (body.thinkingLevel !== undefined) {
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if (typeof body.thinkingLevel !== "string") {
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return Response.json({ error: "thinkingLevel must be a string" }, { status: 400 });
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}
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settings.thinkingLevel = body.thinkingLevel as ThinkingLevel;
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}
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const verdict = validateChatSettings(settings);
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if (!verdict.ok) {
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return Response.json({ error: verdict.error, supported: verdict.supported }, { status: 400 });
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}
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// Replace-whole persists the validated object verbatim — no merges, so a
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// stale client can never resurrect a cleared override.
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stores.chatStore.saveSettings(id, settings);
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return Response.json({ settings });
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}
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