import { __ID__, filePath } from "../consts.mjs";

const { fetchJsonWithTimeout } = foundry.utils;

export async function lastModifiedAt(path) {
	try {
		const response = await fetch(filePath(path), { method: `HEAD` });
		return response.headers.get(`Last-Modified`);
	} catch {
		return null;
	};
};

export async function getFile(path) {
	try {
		return fetchJsonWithTimeout(filePath(path));
	} catch {
		return undefined;
	};
};

/**
 * @param {string} path
 * @param {any} data
 */
export async function uploadJson(path, filename, data) {

	// uploadPersistent adds "storage" into the path automatically
	if (path.startsWith(`storage/`)) {
		path = path.slice(8);
	};
	if (path.endsWith(`/`)) {
		path = path.slice(0, -1);
	};

	const picker = foundry.applications.apps.FilePicker.implementation;
	try {
		const file = new File(
			[JSON.stringify(data)],
			filename,
			{ type: `text/plain` },
		);
		await picker.uploadPersistent(
			__ID__,
			path,
			file,
		);
	} catch {};
};