Arnaud
47 lines
1.6 KiB
TypeScript
47 lines
1.6 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import { z } from "zod";
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import { requireSession } from "@/lib/api-auth";
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import { checkAndIncrementTierLimit, TierLimitError } from "@/lib/tiers";
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import { applyRateLimit } from "@/lib/rate-limit";
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import { substituteIngredient } from "@/lib/ai/features/substitute-ingredient";
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const Schema = z.object({
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ingredient: z.string().min(1).max(200),
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recipeTitle: z.string().max(200).optional(),
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provider: z.enum(["openai", "anthropic", "openrouter", "ollama"]).optional(),
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model: z.string().optional(),
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});
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export async function POST(req: NextRequest) {
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const { session, response } = await requireSession();
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if (response) return response;
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const body = await req.json() as unknown;
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const parsed = Schema.safeParse(body);
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if (!parsed.success) return NextResponse.json({ error: "Validation error" }, { status: 400 });
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const rateLimitRes = await applyRateLimit(`ai:substitute:${session!.user.id}`, 10, 60);
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if (rateLimitRes) return rateLimitRes;
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try {
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await checkAndIncrementTierLimit(session!.user.id, session!.user.tier as "free" | "pro", "aiCall");
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} catch (err) {
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if (err instanceof TierLimitError) {
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return NextResponse.json({ error: "AI call limit reached for your tier" }, { status: 403 });
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}
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throw err;
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}
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const context = parsed.data.recipeTitle
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? `recipe "${parsed.data.recipeTitle}"`
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: "a general recipe";
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const substitutions = await substituteIngredient(
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parsed.data.ingredient,
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context,
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{ provider: parsed.data.provider, model: parsed.data.model }
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);
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return NextResponse.json({ substitutions });
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}
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