export type HeadApiFilesSha256Options = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

/**
 * Check if a file exists for the current namespace
 * 
 * HEAD /files/{sha256}
 */
export const headApiFilesSha256 = async (options?: HeadApiFilesSha256Options) => {
const {baseUrl = "https://api.tokenfactory.nebius.com", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()

const url = `${baseUrl.replace(/\/+$/, '')}/files/${encodeURIComponent(String(args.sha256))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "HEAD", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return undefined
};