Credits and cost

const API_KEY = "YOUR_API_KEY";
const API = "https://api.rendley.com/v1";

const headers = {
  "Authorization": `Bearer ${API_KEY}`,
  "Content-Type": "application/json",
};

const BUDGET = 100;

// Same body, two endpoints: one prices it, one runs it.
const body = JSON.stringify({
  params: { prompt: "A slow aerial push over a city at sunset" },
});


// The /cost twin charges nothing and runs nothing. It only quotes.
const priceResponse = await fetch(`${API}/ai/generate-video/cost`, {
  method: "POST",
  headers,
  body,
});

const priceBody = await priceResponse.json();
const price = priceBody.data;

if (price > BUDGET) {
  throw new Error("Too expensive: " + price + " credits");
}

// Under budget, so send the same body to the endpoint that does the work.
const jobResponse = await fetch(`${API}/ai/generate-video`, {
  method: "POST",
  headers,
  body,
});

const jobBody = await jobResponse.json();
const job = jobBody.data;

const API_KEY = "YOUR_API_KEY";
const API = "https://api.rendley.com/v1";

const headers = {
  "Authorization": "Bearer " + API_KEY,
  "Content-Type": "application/json",
};

const BUDGET = 100;

// Whatever you are about to render, one row per output video.
const rows = [
  { prompt: "A slow aerial push over a city at sunset" },
  { prompt: "A close-up of rain on a window at night" },
];

// Price one row, then decide whether the whole batch is affordable.
const sample = { params: { prompt: rows[0].prompt } };

const response = await fetch(`${API}/ai/generate-video/cost`, {
  method: "POST",
  headers,
  body: JSON.stringify(sample),
});

const body = await response.json();
const perItem = body.data;

// Rows of the same shape price the same, so one quote covers the batch.
const estimate = perItem * rows.length;

console.log(rows.length + " videos, roughly " + estimate + " credits");

if (estimate > BUDGET) {
  throw new Error("Batch exceeds the budget, not starting");
}