import assert from "node:assert/strict";
import fs from "node:fs/promises";
import { basename } from "node:path";
import { chdir } from "node:process";
import { test } from "node:test";
import { fileURLToPath } from "node:url";

import init, { format } from "../pkg/rust_fmt_node.js";

await init();

const test_root = fileURLToPath(import.meta.resolve("../test_data"));
chdir(test_root);

for await (const input_path of fs.glob("**/*.rs")) {
	if (basename(input_path).startsWith(".")) {
		continue;
	}

	const expect_path = input_path + ".snap";

	const [input, expected] = await Promise.all([
		fs.readFile(input_path, "utf-8"),
		fs.readFile(expect_path, "utf-8").catch(() => {
			// 如果没有 snap 文件，就创建一个
			const formatted = format(input);
			return formatted;
		}),
	]);

	test(input_path, () => {
		const actual = format(input);
		assert.equal(actual, expected);
	});
}