import { beforeEach, describe, expect, it, jest } from '@jest/globals';

import handler from '~background/messages/extension/updateAvailable';
import { API_URL } from '~utils/constants';

describe('background/messages/extension/updateAvailable.ts', () => {
  const req = { name: 'extension/updateAvailable' as const };
  const res = { send: jest.fn() };

  beforeEach(() => {
    jest.clearAllMocks();
  });

  it('should set updateAvailable if next version differs from current version', async () => {
    // const current = '1.0.0';
    const next = '2.0.0';

    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
    // @ts-ignore
    global.fetch = jest.fn(() =>
      Promise.resolve({
        json: () =>
          Promise.resolve({
            data: next,
            success: true,
          }),
        status: 200,
      })
    );

    await handler(req, res);

    expect(global.fetch).toHaveBeenCalledWith(`${API_URL}/version/`);
    expect(chrome.storage.local.set).toHaveBeenCalledWith({ updateAvailable: next });
    expect(res.send).toHaveBeenCalledWith({ success: true });
  });

  it('should remove updateAvailable if next version matches current version', async () => {
    // const current = '1.0.0';
    const next = '1.0.0';

    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
    // @ts-ignore
    global.fetch = jest.fn(() =>
      Promise.resolve({
        json: () =>
          Promise.resolve({
            data: next,
            success: true,
          }),
        status: 200,
      })
    );

    await handler(req, res);

    expect(global.fetch).toHaveBeenCalledWith(`${API_URL}/version/`);
    expect(chrome.storage.local.remove).toHaveBeenCalledWith('updateAvailable');
    expect(res.send).toHaveBeenCalledWith({ success: false });
  });

  it('should return success: false if server responds with HTTP 429', async () => {
    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
    // @ts-ignore
    global.fetch = jest.fn(() =>
      Promise.resolve({
        json: () =>
          Promise.resolve({
            errors: [],
            success: false,
          }),
        status: 429,
      })
    );

    await handler(req, res);

    expect(global.fetch).toHaveBeenCalledWith(`${API_URL}/version/`);
    expect(chrome.storage.local.set).not.toHaveBeenCalled();
    expect(chrome.storage.local.remove).not.toHaveBeenCalled();
    expect(res.send).toHaveBeenCalledWith({ success: false });
  });

  it('should return success: false if an error occurs during fetch', async () => {
    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
    // @ts-ignore
    global.fetch = jest.fn(() => Promise.resolve(new Error()));

    await handler(req, res);

    expect(global.fetch).toHaveBeenCalledWith(`${API_URL}/version/`);
    expect(chrome.storage.local.set).not.toHaveBeenCalled();
    expect(chrome.storage.local.remove).not.toHaveBeenCalled();
    expect(res.send).toHaveBeenCalledWith({ success: false });
  });
});