Virtual Try-On

// Best approach: reference image + descriptive prompt
await realtimeClient.set({
  prompt: "Substitute the current top with a black bomber jacket with a blue logo on the chest and a zip front",
  image: garmentFile,
  enhance: false,
});

// Reference image only — the model dresses the person to match
await realtimeClient.set({ image: garmentFile });

// Start with a casual look
realtimeClient.setPrompt("Substitute the current top with a grey crewneck sweatshirt with a large blue logo on the front");

// Switch to formal
realtimeClient.setPrompt("Substitute the current top with a navy blue blazer, worn over a light blue dress shirt");

// Try an accessory
realtimeClient.setPrompt("Add a black baseball cap with a blue logo to the person's head");

// Server: app/api/tokens/route.ts
import { createDecartClient } from "@decartai/sdk";

export async function POST() {
  const client = createDecartClient({ apiKey: process.env.DECART_API_KEY });
  const token = await client.tokens.create();
  return Response.json(token);
}

// Client: fetch token, then connect
const res = await fetch("/api/tokens", { method: "POST" });
const { apiKey } = await res.json();

const client = createDecartClient({ apiKey }); // short-lived ephemeral token
const rtClient = await client.realtime.connect(stream, { model, onRemoteStream });

✅ "Substitute the current top with a bright red hoodie with an oversized casual fit"
✅ "Substitute the current top with a black leather bomber jacket with ribbed cuffs"
✅ "Substitute the current top with a navy blue polo shirt with a white logo on the chest"
✅ "Add a navy baseball cap with a blue logo to the person's head"
✅ "Substitute the current bottoms with dark blue slim-fit jeans"

❌ "Put a jacket on the person"        (too vague — no color, material, or fit)
❌ "Red hoodie"                         (missing action and context)
❌ "Wearing a jacket"                   (no detail about the garment)

// Send the garment image (and optionally a camera frame) to your LLM
const formData = new FormData();
formData.append("image", garmentBlob);
formData.append("personFrame", cameraFrameBlob); // optional — improves accuracy

const res = await fetch("/api/enhance-prompt", { method: "POST", body: formData });
const { prompt } = await res.json();
// → "Substitute the grey crewneck sweater with a blue and pink flame print hoodie with an oversized fit"