import { globSync, readFileSync } from "node:fs";
import { describe, expect, it } from "vitest";
import { snapshotViolations } from "./snapshot-lint.ts";

describe("snapshot policy", () => {
	it("keeps every committed snapshot normalized", () => {
		const files = globSync("**/*.snap").filter(
			(file) => !file.includes("node_modules"),
		);
		const offenders = files.flatMap((file) => {
			const violations = snapshotViolations(readFileSync(file, "utf8"));
			return violations.length ? [`${file}: ${violations.join(", ")}`] : [];
		});
		expect(offenders).toEqual([]);
	});

	it("rejects machine paths, timestamps, IDs, and bundle content", () => {
		expect(snapshotViolations('cwd: "/home/me/project"')).toContain(
			"absolute path",
		);
		expect(snapshotViolations("ran at 2024-01-02T03:04:05Z")).toContain(
			"ISO timestamp",
		);
		expect(
			snapshotViolations("session 123e4567-e89b-12d3-a456-426614174000"),
		).toContain("UUID");
		expect(
			snapshotViolations("import x from './board-runtime-ms4ttrio.js'"),
		).toContain("bundle chunk reference");
		expect(snapshotViolations(process.cwd())).toContain("absolute path");
	});

	it("accepts normalized rendered output", () => {
		expect(
			snapshotViolations("✓ accepted · selected a, b · 1 annotation"),
		).toEqual([]);
	});
});