import { describe, afterEach, it, expect, vi } from "vitest";
import { getChromeVersion, getFirefoxVersion } from "../browser_version";
import EnvDetector, { mockEnvironment, resetEnvironment } from "../env_detector";

const origUserAgent = navigator.userAgent;
Object.defineProperty(
  navigator,
  "userAgent",
  ((initVal: string) => {
    let value = initVal;
    return {
      get() {
        return value;
      },
      set(v: string) {
        value = v;
      },
    };
  })(navigator.userAgent),
);

describe("Compat - Browser version", () => {
  const nav = navigator as {
    userAgent: string;
  };

  afterEach(() => {
    nav.userAgent = origUserAgent;
    vi.resetModules();
    resetEnvironment();
  });

  it("Should return correct Firefox version (60)", () => {
    mockEnvironment(EnvDetector.BROWSERS.Firefox, EnvDetector.DEVICES.Other);
    nav.userAgent = "Firefox/60.0";
    const version = getFirefoxVersion();
    expect(version).toBe(60);
  });

  it("Should return correct Firefox version (80)", () => {
    mockEnvironment(EnvDetector.BROWSERS.Firefox, EnvDetector.DEVICES.Other);
    nav.userAgent = "Firefox/80.0";
    const version = getFirefoxVersion();
    expect(version).toBe(80);
  });

  it("Should return null when not on Firefox", () => {
    mockEnvironment(EnvDetector.BROWSERS.Ie11, EnvDetector.DEVICES.Other);
    const version = getFirefoxVersion();
    expect(version).toBe(null);
  });

  it("Should return null when obscure Firefox user agent", () => {
    mockEnvironment(EnvDetector.BROWSERS.Firefox, EnvDetector.DEVICES.Other);
    nav.userAgent = "FireFennec/80.0";
    const version = getFirefoxVersion();
    expect(version).toBe(-1);
  });
});

describe("Compat - Chrome version", () => {
  const nav = navigator as {
    userAgent: string;
  };

  afterEach(() => {
    nav.userAgent = origUserAgent;
    vi.resetModules();
    resetEnvironment();
  });

  it("Should return correct Chrome version (60)", () => {
    mockEnvironment(EnvDetector.BROWSERS.Other, EnvDetector.DEVICES.Other);
    nav.userAgent = "Chrome/60.0";
    const version = getChromeVersion();
    expect(version).toBe(60);
  });

  it("Should return correct Chrome version (80)", () => {
    mockEnvironment(EnvDetector.BROWSERS.Other, EnvDetector.DEVICES.Other);
    nav.userAgent = "Chrome/80.0";
    const version = getChromeVersion();
    expect(version).toBe(80);
  });

  it("Should return null when not on Chrome", () => {
    mockEnvironment(EnvDetector.BROWSERS.Ie11, EnvDetector.DEVICES.Other);
    const version = getChromeVersion();
    expect(version).toBe(null);
  });

  it("Should return null with invalid Chrome user agent", () => {
    mockEnvironment(EnvDetector.BROWSERS.Other, EnvDetector.DEVICES.Other);
    nav.userAgent = "Toto/80.0";
    const version = getChromeVersion();
    expect(version).toBe(null);
  });
});