const assert = require("node:assert/strict");
const { execFileSync } = require("node:child_process");
const { version } = require("../package.json");
const git = (...args) => execFileSync("git", args, { encoding: "utf8" }).trim();

assert.equal(
	git("status", "--porcelain"),
	"",
	"Commit all changes before preparing a release",
);
const tags = git(
	"tag",
	"--merged",
	"HEAD",
	"--list",
	"v[0-9]*",
	"--sort=-version:refname",
)
	.split("\n")
	.filter((tag) => /^v\d+\.\d+\.\d+$/.test(tag));
assert.equal(
	version,
	tags[0]?.slice(1) ?? "0.0.0",
	"Version is already prepared or release tags are missing. Fetch tags; finish the existing release before preparing another.",
);