/**
 * Get the tarball size of a package
 * @param url tarball url, can technically be any url
 * @returns tarball size in bytes
 */
export function getTarballSize(url: string, method: "HEAD" | "GET" = "HEAD"): Promise<number> {
	return fetch(url, { method }).then((res) => {
		if (!(res.ok && res.status === 200)) {
			throw new Error("Failed to fetch tarball size")
		}
		return Number(res.headers.get("Content-Length"))
	})
}

export function getRawFileFromGitHub(
	owner: string,
	repo: string,
	commit: string,
	filePath: string
): Promise<string | undefined> {
	return fetch(`https://raw.githubusercontent.com/${owner}/${repo}/${commit}/${filePath}`)
		.then((res) => (res.ok ? res.text() : undefined))
		.catch((e) => undefined)
}