import { readFile } from "node:fs/promises";
import { dirname, resolve } from "node:path";
import { fileURLToPath } from "node:url";
import { describe, expect, it } from "vitest";

const here = dirname(fileURLToPath(import.meta.url));
const distRoot = resolve(here, "..", "dist");

async function distExists(): Promise<boolean> {
    try {
        await readFile(resolve(distRoot, "index.js"), "utf8");
        return true;
    } catch {
        return false;
    }
}

async function readDist(rel: string): Promise<string> {
    return readFile(resolve(distRoot, rel), "utf8");
}

describe("tree-shake guards", () => {
    it("page-object subpath does not pull config", {
        timeout: 10000,
    }, async () => {
        if (!(await distExists())) return;
        const text = await readDist("page-objects/page-object.js");
        expect(text).not.toMatch(/createPlaywrightConfig/);
        expect(text).not.toMatch(/waitForNetworkIdle/);
    });

    it("wait-for-network-idle does not pull dialog helper", {
        timeout: 10000,
    }, async () => {
        if (!(await distExists())) return;
        const text = await readDist("helpers/wait-for-network-idle.js");
        expect(text).not.toMatch(/dismissDialog/);
        expect(text).not.toMatch(/mockGeolocation/);
    });
});