import { readFileSync } from "node:fs";
import { resolve } from "node:path";
import { describe, expect, it } from "vitest";

type WebAccessibleResource = {
  matches: string[];
  resources: string[];
  use_dynamic_url?: boolean;
};

type ExtensionManifest = {
  web_accessible_resources?: WebAccessibleResource[];
};

function readManifest(target: "chrome" | "firefox"): ExtensionManifest {
  const directory = target === "chrome" ? "dist-chrome" : "dist-firefox";
  return JSON.parse(
    readFileSync(resolve(process.cwd(), directory, "manifest.json"), "utf8"),
  ) as ExtensionManifest;
}

describe("shipped web-accessible resources", () => {
  it("allows Chrome content-script chunks from stable extension URLs", () => {
    const resources = readManifest("chrome").web_accessible_resources ?? [];

    expect(resources).toHaveLength(1);
    expect(resources[0]?.use_dynamic_url).toBe(false);
    expect(resources[0]?.matches).toEqual(["<all_urls>"]);
    expect(resources[0]?.resources.length).toBeGreaterThan(0);
  });

  it("keeps Firefox resources limited to content-script chunks with content hashes", () => {
    const resources = readManifest("firefox").web_accessible_resources ?? [];
    const files = resources.flatMap((entry) => entry.resources);

    expect(files.length).toBeGreaterThan(0);
    expect(files.every((file) => /^assets\/[^/]+-[A-Za-z0-9_-]+\.(?:js|css)$/.test(file))).toBe(true);
    expect(files.every((file) => !file.includes("<dynamic_resource>"))).toBe(true);
  });
});