import { readFileSync } from "node:fs";
import { join, resolve } from "node:path";
import { describe, expect, it } from "@suaveplan/testing/runner";

const PKG_ROOT = resolve(__dirname, "..");
const PKG_JSON = JSON.parse(
    readFileSync(join(PKG_ROOT, "package.json"), "utf8")
) as { exports: Record<string, unknown>; dependencies: Record<string, string> };

const REQUIRED_SURFACES = [
    ".",
    "./karaoke",
    "./karaoke/lrc-parser",
    "./karaoke/use-lyrics",
    "./karaoke/lyrics-display",
    "./error-codes",
];

describe("subpath exports", () => {
    it("every public surface has a subpath entry", { timeout: 5000 }, () => {
        for (const surface of REQUIRED_SURFACES) {
            expect(PKG_JSON.exports[surface]).toBeDefined();
        }
    });

    it("sideEffects=false", { timeout: 5000 }, () => {
        const raw = JSON.parse(
            readFileSync(join(PKG_ROOT, "package.json"), "utf8")
        ) as { sideEffects: boolean };
        expect(raw.sideEffects).toBe(false);
    });

    it("runtime dependency set matches allowlist", {
        timeout: 5000,
    }, () => {
        const deps = Object.keys(PKG_JSON.dependencies).sort();
        expect(deps).toEqual(
            [
                "@suaveplan/error",
                "@suaveplan/react-audio",
                "@suaveplan/types",
                "tslib",
            ].sort()
        );
    });
});